CN109209366A - A kind of control circuit and method of more PVT fluid samplings - Google Patents
A kind of control circuit and method of more PVT fluid samplings Download PDFInfo
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- CN109209366A CN109209366A CN201811174817.5A CN201811174817A CN109209366A CN 109209366 A CN109209366 A CN 109209366A CN 201811174817 A CN201811174817 A CN 201811174817A CN 109209366 A CN109209366 A CN 109209366A
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- 239000012530 fluid Substances 0.000 title claims abstract description 112
- 238000005070 sampling Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000003491 array Methods 0.000 claims abstract description 31
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 21
- 210000002445 nipple Anatomy 0.000 claims description 71
- 238000003860 storage Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 14
- 239000000523 sample Substances 0.000 description 8
- 238000004891 communication Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
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- Life Sciences & Earth Sciences (AREA)
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- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
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- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses the control circuits and method of a kind of more PVT fluid samplings, and the control circuit of more PVT fluid samplings includes: power circuit, for powering for governor circuit；Governor circuit, for exporting the first control signal of corresponding control sampler barrel control circuit according to the PVT sampling quality of formation fluid；Sampler barrel control circuit, including one or more groups of switch arrays, switch arrays control opening or closing for corresponding PVT sampler barrel under the control of first control signal.The control circuit and method of more PVT fluid samplings disclosed by the invention can be realized underground and once carry out more PVT fluid samplings.
Description
Technical field
The present invention relates to oil field development technical field, the control circuit and method of espespecially a kind of more PVT fluid samplings.
Background technique
The sample of formation fluid pressure-Volume-Temperature (Pressure-Volume-Temperature, abbreviation PVT) sampling
Reservoir fluid and its characteristic can be described more fully with, be highly important to In Oil Field Exploration And Development.Wherein, to condensate gas well in height
Its reservoir fluid is taken to be referred to as PVT sampling under warm high pressure, the purpose is to obtain statement storage by analyzing the fluid in ground system
The parameter of layer fluid physics and chemical property.
Currently, once go into the well in formation testing operation obtain formation fluid sample as much as possible demand it is more and more stronger
It is strong, however, current PVT Fluid sampling system (such as earth layer measuring instrument), it cannot achieve underground and once carry out more PVT fluids and take
Sample.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides the control circuit and method of a kind of more PVT fluid samplings, energy
Enough realize that underground once carries out more PVT fluid samplings.
In order to reach the object of the invention, in a first aspect, the present invention provides a kind of control circuit of more PVT fluid samplings,
It include: power circuit, governor circuit and sampler barrel control circuit, in which:
The power circuit, for powering for the governor circuit；
The governor circuit is controlled for exporting the corresponding control sampler barrel according to the PVT sampling quality of formation fluid
The first control signal of circuit；
The sampler barrel control circuit, including one or more groups of switch arrays, the switch arrays are in first control
Under the control of signal, opening or closing for corresponding PVT sampler barrel is controlled.
Second aspect, the present invention provides a kind of control methods of more PVT fluid samplings, comprising:
Corresponding first control signal is exported according to the PVT sampling quality of formation fluid；
Under the control of the first control signal, corresponding PVT sampler barrel is controlled by one or more groups of switch arrays
It opens or closes.
The third aspect, the present invention provides a kind of PVT Fluid sampling systems, including more as described in first aspect embodiment
The control circuit of PVT fluid sampling.
The control circuit and method of more PVT fluid samplings provided in an embodiment of the present invention, including one or more groups of switch arrays
The sampler barrel control circuit of column controls opening or closing for corresponding PVT sampler barrel, Ke Yishi under the control of first control signal
The multiple PVT sampler barrels now carried to multiple pipe nipples control, and can realize the PVT Fluid sampling system for mounting multiple pipe nipples
The Multi-example sampling for carrying out downhole fluid, realizes that underground once carries out more PVT fluid samplings.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the structural schematic diagram of the control circuit for more PVT fluid samplings that the embodiment of the present invention one provides；
Fig. 2 is the structural schematic diagram of the control circuit of more PVT fluid samplings provided by Embodiment 2 of the present invention；
Fig. 3 is the control principle schematic diagram of more PVT fluid samplings provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of rotary coding switch provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram that rotary coding switch provided in an embodiment of the present invention is connect with governor circuit；
Fig. 6 is the schematic diagram of the control circuit operation interface of more PVT fluid samplings provided in an embodiment of the present invention；
Fig. 7 is the flow diagram of the control method of more PVT fluid samplings provided in an embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
Step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable
Sequence executes shown or described step.
Fig. 1 is the structural schematic diagram of the control circuit for more PVT fluid samplings that the embodiment of the present invention one provides, such as Fig. 1 institute
Show, the control circuit of more PVT fluid samplings provided in an embodiment of the present invention, comprising: power circuit 1, governor circuit 2 and sampler barrel
Control circuit 3.Wherein, power circuit 1 and sampler barrel control circuit 3 are connect with governor circuit 2 respectively.
Power circuit 1, for powering for governor circuit 2；Governor circuit 2, for the PVT sampling quality according to formation fluid
The first control signal of the corresponding control sampler barrel control circuit 3 of output.
It should be noted that other circuit modules in the control circuit of power circuit 1 or more PVT fluid samplings
Power supply, the present embodiment is herein without limiting and repeating.
Specifically, the control circuit of more PVT fluid samplings provided in this embodiment can be applied in PVT Fluid sampling system
On (such as stratum cable), PVT Fluid sampling system positions launch into the pit shaft of underground when in use, passes through ground system
Control signal is issued, PVT Fluid sampling system works, and the suction for carrying out certain volume to the formation fluid positioned takes
Sample tracks and records the formation fluid of sucking PVT sampler barrel, achievees the purpose that evaluate oil reservoirs.Wherein, PVT is sampled
Cylinder is for storing tested formation fluid, and the realization principle that PVT sampler barrel is sampled is same as the prior art, and the present embodiment is herein
Without repeating.
It in practical applications, can be advanced when the sampling probe of PVT Fluid sampling system and pit shaft are tested reservoir first contacts
Row pretest.In the pretest stage, sampling probe sucks formation fluid for the first time, and governor circuit 2 detects the matter of formation fluid simultaneously
Amount.Governor circuit 2 judges after the PVT sampling quality of the formation fluid detected meets sampling requirement, then by tested ground laminar flow
Body is injected into PVT sampler barrel.
Specifically, exporting corresponding control when governor circuit 2 judges that the PVT sampling quality of formation fluid meets sampling requirement
The first control signal of sampler barrel control circuit 3 processed, to control opening or closing for PVT sampler barrel.Wherein, sampling requirement can be with
Depending on the empirical value of actual demand or technical staff, the present embodiment is herein without limiting and repeating.
It should be noted that the present embodiment pertains only to apply the governor circuit 2, PVT on PVT Fluid sampling system
Fluid sampling system in addition to remaining module the present embodiment of governor circuit 2 is herein without limiting, and the realization of remaining module
Principle and structure are same as the prior art, and the present embodiment is herein without limiting.
Sampler barrel control circuit 3, including one or more groups of switch arrays, control of the switch arrays in first control signal
Under, control opening or closing for corresponding PVT sampler barrel.
Specifically, sampler barrel control circuit 3 under the control of first control signal, controls the opening of corresponding PVT sampler barrel
Or it closes.In practical applications, PVT sampler barrel can carry on pipe nipple, and a pipe nipple can carry multiple PVT sampler barrels.
In the present embodiment, the multiple PVT sampler barrels carried on one group of switch arrays, one pipe nipple of corresponding control, multiple groups switch arrays can be with
Multiple PVT sampler barrels on corresponding multiple pipe nipples.
The control circuit of more PVT fluid samplings provided in an embodiment of the present invention, including taking for one or more groups of switch arrays
Sample cylinder control circuit 3 controls opening or closing for corresponding PVT sampler barrel under the control of first control signal, may be implemented pair
Multiple PVT sampler barrels that multiple pipe nipples carry are controlled, and can realize that the PVT Fluid sampling system for mounting multiple pipe nipples carries out
The Multi-example of downhole fluid samples, and realizes that underground once carries out more PVT fluid samplings.
Further, in the above-described embodiments, one group of switch arrays includes multiple switch, and switch arrays are in the first control letter
Number control under, operated by the switching of switch, to control opening or closing for corresponding PVT sampler barrel；
Wherein, the switching operation of a switch in one group of switch arrays, the opening of one PVT sampler barrel of corresponding control
Or it closes.
Specifically, one group of switch arrays may include multiple switch, a switch is corresponding to control a PVT sampler barrel, from
And realize the multiple PVT sampler barrels carried on one pipe nipple of control.It is wherein, each to switch under the control of first control signal,
Corresponding switching is carried out, controls opening or closing for a PVT sampler barrel with corresponding.
Optionally, the switch in switch arrays is to drive mechanical valve to control by solenoid valve, and governor circuit 2 has multiple electricity
The function of magnet valve control, may be implemented switch and the sampling of multiple sampler barrels.Specifically, governor circuit 2 may be implemented to multiple
The control of solenoid valve, wherein control signal pins connections different from governor circuit 2, governor circuit 2 divide multiple solenoid valves respectively
Not Gei corresponding solenoid valve add high-voltage pulse control signal, to open corresponding solenoid valve.Fluid machinery is driven by solenoid valve
The unlatching of valve, a solenoid valve drives a mechanical valve to control a PVT sampler barrel, to realize PVT sampler barrel
It opens.It should be noted that the closing of PVT sampler barrel is also principle of uniformity, details are not described herein for the present embodiment.
Optionally, sampler barrel control circuit 3 may include eight groups of switch arrays, and each group of switch arrays may include six
Switch.In the present embodiment, it may be implemented to control 6 PVT sampler barrels that 8 pipe nipples and each pipe nipple carry, so that
The single pipe nipple of PVT Fluid sampling system can carry 6 PVT sample cylinders, and once go into the well and can mount 8 pipe nipples.
Further, in the above-described embodiments, governor circuit 2 is the single-chip microcontroller encapsulated using thick film technology.
In the present embodiment, governor circuit 2 can use MSP430 chip to guarantee temperature performance for the thick film designs of kernel
Reset circuit and clock circuit has also been devised at 175 DEG C, while in the chip.It should be noted that answering in MSP430 chip
The realization principle of position circuit and clock circuit is identical as the realization principle of the reset circuit of the prior art and clock circuit, this implementation
Example is herein without repeating.MSP430 chip is the single-chip microcontroller of super low-power consumption, meets the needs of electric circuit in well low-power consumption, uses
16 reduced instruction sets, can play high code efficiency.In addition to this, MSP430 chip uses numerically-controlled oscillator
(Digital Control Oscillator, abbreviation DCO), so that the conversion time from low-power consumption mode to awakening mode is less than
6 microseconds (us), meet the demand of underground logging operation.Wherein, the realization for the numerically-controlled oscillator that MSP430 chip uses is former
Reason is identical as the realization principle of numerically-controlled oscillator in the prior art, and the present embodiment is herein without repeating.
It should be noted that the realization principle of thick film encapsulation technology involved in the present embodiment is same as the prior art, this
Embodiment is herein without repeating.
The control circuit of more PVT fluid samplings provided in an embodiment of the present invention, 1. use highly integrated circuit design, will
The components such as MSP430 chip, storage, communication greatly reduce the size of entire circuit by thick film encapsulation technology, but also
Circuit more simplifies, and is convenient for measuring and debugs, and avoids using traditional circuit design, the big defect of circuit board size.2. adopting
With thick film encapsulation technology, the work of high temperature well can satisfy, (175 DEG C) can work, not need for a long time at high temperature
Vacuum flask is set again, avoids traditional circuit temperature rank deficient (temperature grade of such as traditional circuit can only achieve 125 DEG C),
It needs to be placed in vacuum flask, working time restricted defect.
Fig. 2 is the structural schematic diagram of the control circuit of more PVT fluid samplings provided by Embodiment 2 of the present invention,
Fig. 3 is the control principle schematic diagram of more PVT fluid samplings provided in an embodiment of the present invention, as shown in Figures 2 and 3,
On the basis of above-described embodiment, the control circuit of more PVT fluid samplings provided in an embodiment of the present invention, can also include: address
Scanning circuit 4, the gear on scanned fluid sampling pipe nipple on rotary coding switch.
Wherein, address scan circuit 4 is connect with governor circuit 2.Governor circuit 2 is also used to: determining pipe nipple according to gear
Address code.
In the present embodiment, the rotary coding switch of one pressure-bearing, rotation can be set in one end of PVT fluid sampling pipe nipple
Multiple gears can be set in code switch, can carry out address to more PVT fluid sampling pipe nipples by rotary coding switch and obtain
It takes and is arranged.Wherein, the quantity of rotary coding switch can once go into the well portable pipe nipple according to PVT Fluid sampling system
Depending on maximum quantity, for example, the maximum quantity of portable pipe nipple is 8, then rotary coding switch can be set 8 gears, and one
The address code of the corresponding pipe nipple of a gear.Fig. 4 is the structural schematic diagram of rotary coding switch provided in an embodiment of the present invention, such as
8 gears are provided with shown in Fig. 4, on rotary coding switch, 8 gears are connected on governor circuit 2 with 8 conducting wires respectively, which
Then which gear is explanation push on the conducting of root conducting wire, and the address code of pipe nipple is the gear where rotary coding switch.For example, rotation
Turn gear on code switch and go to 8, then the address code of pipe nipple where rotary coding switch is 8.It should be noted that this implementation
The address code of pipe nipple can be digital number in example, such as 1,2 ... 8.Wherein, field personnel can insert rotation key
Enter in switch shown in Fig. 4, to realize rotation rotary coding switch, rotary coding switch is gone into corresponding gear.It is shown in Fig. 4
The shape of switch hole is a kind of example, and the switch hole of rotary coding switch is not limited in shown in Fig. 4 open in the present embodiment
Close the shape in hole.
In the present embodiment, governor circuit 2 can be set multiple input/output (input/output, abbreviation I/O) mouth with
The corresponding pin of the different stalls of rotary coding switch is connected.Specifically, Fig. 5 is that rotary coding provided in an embodiment of the present invention is opened
The structural schematic diagram connecting with governor circuit 2 is closed, as shown in figure 5, governor circuit 2 there are 8 I/O mouthfuls and the 8 of rotary coding switch
A pin is connected, and a pin of rotary coding switch passes through a resistance (R1, R2 ... R8 in such as Fig. 5) and governor circuit 2
An I/O mouthfuls of connections (I/O1, I/O2 ... I/O8 in such as Fig. 5), wherein the size of R1, R2 ... R8 can be 4.7k.
When field personnel rotates rotary coding switch, which gear rotary coding switch goes to, which root conducting wire conducting, conducting letter
Number (SW1, SW2 ... SW8 in such as Fig. 5) is transferred on corresponding I/O mouth, and it is corresponding that governor circuit 2 will scan the gear
The address of pipe nipple can be confirmed using this principle for address code.It should be noted that the present embodiment is with PVT Fluid sampling system one
The maximum quantity of secondary portable pipe nipple of going into the well is illustrated for being 8, remaining quantity is similar therewith, and the present embodiment is herein not
It is repeated.
Further, it as shown in Fig. 2, the control circuit of more PVT fluid samplings can also include: address storage circuit 5, uses
In the address code of storage pipe nipple.Wherein, address storage circuit 5 is connect with governor circuit 2.
Specifically, since PVT Fluid sampling system (such as earth layer measuring instrument) once can at most mount multiple (such as 8
It is a) more PVT fluid sampling pipe nipples, need the address by each pipe nipple to separate.In the present embodiment, address storage circuit 5 can be incited somebody to action
In the good pipe nipple address write-in ROM of online modification, power on the address that rear governor circuit 2 is directly read in ROM can determine whether which is
Root pipe nipple.
Wherein, governor circuit 2 can be also used for changing the address code of the pipe nipple after the address code variation of pipe nipple.Master control
Circuit 2 can control repeatable combination technique using identity number (IDentity, abbreviation ID), and pipe nipple can be arranged online
Address code realizes the mounting of more pipe nipples.Wherein, the present embodiment can be it is not limited to by address code as the ID of pipe nipple, ID
The repeatable combination technique of control refers to can be according to the actual situation by the repeatable combination of different pipe nipples using the same address
Code.For example, there are two pipe nipple, respectively address code be 1 pipe nipple 1 and address code be 2 pipe nipple 2, make when due to certain situation
Pipe nipple 1 cannot in use, the address code of pipe nipple 2 can be revised as at this time 1 carry out using；Alternatively, when due to certain situation
Prevent pipe nipple 2 from use, the address code of pipe nipple 1 can be revised as at this time 2 carry out using.The embodiment of the present invention can be right
Pipe nipple carries out the setting (modification) of online address code, the maintenance of great convenience and the mounting of more pipe nipples.It is short to avoid each
The address of section is fixed, and the defect of online change is unable to.
Governor circuit 2 is also used to: when the address code of pipe nipple scanning determining address code and storage is inconsistent, it is short to modify this
The determining address code of section scanning is simultaneously alerted.Specifically, existing since field personnel is when rotating rotary coding switch
Maloperation makes rotary coding switch turn wrong gear, haves the defects that deviation so as to cause the address code of scanning.In the present embodiment,
The address code stored in 2 pairs of governor circuit scannings determining address code and ROM is compared, when the address determining in pipe nipple scanning
When code and the inconsistent address code of storage, the determining address code of scanning is revised as the address code stored in ROM.It can lead to simultaneously
It crosses the alarm modes such as jingle bell or indicator light bright light to be alerted, to remind field personnel.
The embodiment of the present invention can also provide operation interface for the control circuit of more PVT fluid samplings, which can
It is shown with being arranged in the control equipment of ground system.Fig. 6 is the control electricity of more PVT fluid samplings provided in an embodiment of the present invention
The schematic diagram at dataway operation interface, as shown in fig. 6, governor circuit 2 uses scanning technique, by the address ROM and switch position
Scanning determines quantity and the address of the pipe nipple of mounting, uniquely controls some pipe nipple by the selection to address.Data acquisition can
The data acquisition of multiple (8) pipe nipples using hair technology is taken turns, can be completed in the case where total data packet is constant.Pass through the operation
Interface can obtain the acquisition data of multiple pipe nipples at any time, as shown in figure 5, if thinking the acquisition data for the pipe nipple that acquisition address code is 3,
It can obtain the pipe nipple that address code is 3 by selecting 3#Section in Select Exist Section and acquire number
According to as shown in fig. 6, the address code that the pipe nipple stores in ROM is 3, the address code for scanning acquisition is 8, the temperature of governor circuit 2
It is 25 DEG C.
It should be noted that in operation interface as shown in FIG. 6,1T0,21T0 ... can be passed through in actual job
Six buttons of 6T0 control the switch of the 6 PVT sampler barrels carried on a pipe nipple respectively.The time can be carried out by ATC button
Correction.The control circuit of more PVT fluid samplings can be made to enter low-power consumption mode by ECO button.
Further, it as shown in Fig. 2, the control circuit of more PVT fluid samplings can also include: temperature measuring circuit 6, uses
In the temperature of measurement governor circuit 2, and the temperature of measurement is sent to governor circuit 2.
Wherein, the temperature that governor circuit 2 is also used to will acquire is sent to ground system.The temperature that ground system can will acquire
Degree is come out by aforesaid operations interface display, in order to which technical staff understands the real time temperature of governor circuit 2 on ground at any time.Such as
Shown in Fig. 6, operation interface shows that the temperature of governor circuit 2 is 25 DEG C.
Specifically, temperature measuring circuit 6 can use AD22100 chip.Wherein, AD22100 chip is voltage output type
Temperature sensor can calculate real-time temperature using the relationship of chip output voltage and temperature, specific real
Existing principle is same as the prior art, and the present embodiment is herein without repeating
Further, in the above-described embodiments, the control circuit of more PVT fluid samplings can also include: control of export electricity
Road 7.Wherein, control of export circuit 7 is connect with governor circuit 2.
Governor circuit 2 is also used to export the of corresponding control control of export circuit 7 according to the PVT sampling quality of formation fluid
Two control signals；Control of export circuit 7, for according to second control signal open and close fluid outlet.
Specifically, what control of export circuit 7 can also be realized by solenoid valve control, governor circuit 2 may be implemented to electromagnetism
The control of valve realizes the function of fluid disengaging pipe nipple to control the on or off of the fluid outlet on PVT Fluid sampling system.
Further, as shown in Fig. 2, the control circuit of more PVT fluid samplings can also include: telecommunication circuit 8.Wherein,
Telecommunication circuit is connect with governor circuit 2.
Governor circuit 2 is also used to determine sampling and measuring data according to the sampling quality of formation fluid, and by sampling and measuring number
According to being sent to telecommunication circuit；Telecommunication circuit, for being sent to sampling and measuring data by the way of the transmission of two wires differential balance
Ground system.
Specifically, determining sampling and measuring data can be sent to ground system by telecommunication circuit by governor circuit 2, lead to
The quality that ground system is sent can also be transmitted to governor circuit 2 by letter circuit.Wherein, telecommunication circuit can be using general same
Step/asynchronous serial reception/transmitter (Universal Synchronous/Asynchronous Receiver/
Transmitter, abbreviation USART) realize that serial asynchronous communication mode, data format can be with are as follows: 1 start bit, 8 data
Position and 1 stop position.In the present embodiment, SN65HVD chip also can be used and complete half-duplex asynchronous communication, transmission rate is high,
Transmission range is big.Meanwhile the present embodiment can enhance ability resistant to common code interference by the way of the transmission of two wires differential balance.
It should be noted that the realization principle of USART and SN65HVD is same as the prior art in the present embodiment, this implementation
In example using the transmission of two wires differential balance by the way of realization principle it is same as the prior art, the present embodiment is herein without superfluous
It states.
Further, in the above-described embodiments, power circuit 1 can be made of pressure stabilizing triode and zener diode
Voltage-stabilized power supply circuit 1.
In the present embodiment, power circuit 1 is built into voltage-stabilized power supply circuit using pressure stabilizing triode and diode circuit of voltage regulation
1, for powering to 2 chip core of governor circuit.Specifically, the structure that Fig. 6 is power circuit 1 provided in an embodiment of the present invention is shown
It is intended to, as shown in fig. 6, forming basic voltage regulator circuit by 1K resistance RZ1 and zener diode DW, is obtained on zener diode DW
Burning voltage, transistor base connects the point, and (base stage of triode is connect with one end of resistance RZ1 in such as Fig. 6, and passes through two
Pole pipe D is connect with zener diode), form an emitter follower.Emitter voltage is to follow base voltage (lower than base stage one
The Base-emitter pressure drop about 0.65V of a triode), and the pressure drop between the base stage of triode and emitter-base bandgap grading is just two poles
The pressure drop of pipe D, therefore the output voltage of emitter can export the voltage of stable 3.3V as base voltage.This implementation
1 carrying load ability of power circuit that example provides is far longer than the ability of single voltage-stabiliser tube, since emitter follower input impedance is high,
But also the output voltage of power circuit 1 is more stable.Wherein, as shown in fig. 6, the model of triode T1 can be 880, two poles
The model of pipe D can be 4148.
Fig. 7 is the flow diagram of the control method of more PVT fluid samplings provided in an embodiment of the present invention, as shown in fig. 7,
The control method of more PVT fluid samplings provided in an embodiment of the present invention, comprising:
S701: corresponding first control signal is exported according to the PVT sampling quality of formation fluid.
S702: under the control of first control signal, corresponding PVT sampler barrel is controlled by one or more groups of switch arrays
It opens or closes.
The control method of more PVT fluid samplings provided in an embodiment of the present invention is the tool that circuit embodiments shown in Fig. 1 execute
Body technique scheme, realization principle is similar with effect is realized, details are not described herein again.
Further, in the above-described embodiments, described under the control of the first control signal, by one or more groups of
Switch arrays control opening or closing for corresponding PVT sampler barrel, comprising:
Under the control of the first control signal, operated by the switching switched in one or more groups of switch arrays, with
Control opening or closing for corresponding PVT sampler barrel；
Wherein, the switching operation of a switch in one group of switch arrays, the opening of one PVT sampler barrel of corresponding control
Or it closes.
Further, in the above-described embodiments, the method also includes:
Scanned fluid samples the gear on pipe nipple on rotary coding switch；
The address code of the pipe nipple is determined according to the gear.
Further, in the above-described embodiments, the method also includes:
Store the address code of the pipe nipple；
When the address code of pipe nipple scanning determining address code and storage is inconsistent, pipe nipple scanning determination is modified
Address code is simultaneously alerted.
The embodiment of the present invention also provides a kind of PVT Fluid sampling system, including more PVT as described in above-mentioned any embodiment
The control circuit of fluid sampling.
It will appreciated by the skilled person that whole or certain steps, system, dress in method disclosed hereinabove
Functional module/unit in setting may be implemented as software, firmware, hardware and its combination appropriate.In hardware embodiment,
Division between the functional module/unit referred in the above description not necessarily corresponds to the division of physical assemblies；For example, one
Physical assemblies can have multiple functions or a function or step and can be executed by several physical assemblies cooperations.Certain groups
Part or all components may be implemented as by processor, such as the software that digital signal processor or microprocessor execute, or by
It is embodied as hardware, or is implemented as integrated circuit, such as specific integrated circuit.Such software can be distributed in computer-readable
On medium, computer-readable medium may include computer storage medium (or non-transitory medium) and communication media (or temporarily
Property medium).As known to a person of ordinary skill in the art, term computer storage medium is included in for storing information (such as
Computer readable instructions, data structure, program module or other data) any method or technique in the volatibility implemented and non-
Volatibility, removable and nonremovable medium.Computer storage medium include but is not limited to RAM, ROM, EEPROM, flash memory or its
His memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storages, magnetic holder, tape, disk storage or other
Magnetic memory apparatus or any other medium that can be used for storing desired information and can be accessed by a computer.This
Outside, known to a person of ordinary skill in the art to be, communication media generally comprises computer readable instructions, data structure, program mould
Other data in the modulated data signal of block or such as carrier wave or other transmission mechanisms etc, and may include any information
Delivery media.
Claims (14)
1. a kind of control circuit of more PVT fluid samplings, comprising: power circuit, governor circuit and sampler barrel control circuit,
In:
The power circuit, for powering for the governor circuit；
The governor circuit, for exporting the corresponding control sampler barrel control circuit according to the PVT sampling quality of formation fluid
First control signal；
The sampler barrel control circuit, including one or more groups of switch arrays, the switch arrays are in the first control signal
Control under, control opening or closing for corresponding PVT sampler barrel.
2. the control circuit of more PVT fluid samplings according to claim 1, which is characterized in that one group of switch arrays includes
Multiple switch, the switch arrays are operated, with control pair under the control of the first control signal by the switching of switch
Answer opening or closing for PVT sampler barrel；
Wherein, the switching operation of a switch in one group of switch arrays, corresponding one PVT sampler barrel of control play on or off
It closes.
3. the control circuit of more PVT fluid samplings according to claim 2, which is characterized in that the governor circuit is to adopt
The single-chip microcontroller encapsulated with thick film technology.
4. the control circuit of more PVT fluid samplings according to claim 1-3, which is characterized in that more PVT
The control circuit of fluid sampling further include: address scan circuit, on scanned fluid sampling pipe nipple on rotary coding switch
Gear；
The governor circuit is also used to: the address code of the pipe nipple is determined according to the gear.
5. the control circuit of more PVT fluid samplings according to claim 4, which is characterized in that more PVT fluid samplings
Control circuit further include: address storage circuit, for storing the address code of the pipe nipple；
The governor circuit is also used to: when the address code of pipe nipple scanning determining address code and storage is inconsistent, modification
The determining address code of pipe nipple scanning is simultaneously alerted.
6. the control circuit of more PVT fluid samplings according to claim 1-3, which is characterized in that more PVT
The control circuit of fluid sampling further include: temperature measuring circuit, for measuring the temperature of the governor circuit, and by the temperature of measurement
Degree is sent to the governor circuit.
7. the control circuit of more PVT fluid samplings according to claim 1-3, which is characterized in that more PVT
The control circuit of fluid sampling further include: control of export circuit；
The governor circuit is also used to export the corresponding control control of export circuit according to the PVT sampling quality of formation fluid
Second control signal
The control of export circuit, for according to the second control signal open and close fluid outlet.
8. the control circuit of more PVT fluid samplings according to claim 1-3, which is characterized in that more PVT
The control circuit of fluid sampling further include: telecommunication circuit；
The governor circuit is also used to determine sampling and measuring data according to the sampling quality of formation fluid, and by the sampling and measuring
Data are sent to the telecommunication circuit；
The telecommunication circuit, for the sampling and measuring data to be sent to ground system by the way of the transmission of two wires differential balance
System.
9. the control circuit of more PVT fluid samplings according to claim 1-3, which is characterized in that the power supply
Circuit is the voltage-stabilized power supply circuit being made of pressure stabilizing triode and zener diode.
10. a kind of control method of more PVT fluid samplings, comprising:
Corresponding first control signal is exported according to the PVT sampling quality of formation fluid；
Under the control of the first control signal, the opening of corresponding PVT sampler barrel is controlled by one or more groups of switch arrays
Or it closes.
11. according to the method described in claim 10, leading to it is characterized in that, described under the control of the first control signal
It crosses one or more groups of switch arrays and controls opening or closing for corresponding PVT sampler barrel, comprising:
Under the control of the first control signal, operated by the switching switched in one or more groups of switch arrays, with control
Corresponding PVT sampler barrel opens or closes；
Wherein, the switching operation of a switch in one group of switch arrays, corresponding one PVT sampler barrel of control play on or off
It closes.
12. method described in 0 or 11 according to claim 1, which is characterized in that the method also includes:
Scanned fluid samples the gear on pipe nipple on rotary coding switch；
The address code of the pipe nipple is determined according to the gear.
13. according to the method for claim 12, which is characterized in that the method also includes:
Store the address code of the pipe nipple；
When the address code of pipe nipple scanning determining address code and storage is inconsistent, the determining address of pipe nipple scanning is modified
Code is simultaneously alerted.
14. a kind of PVT Fluid sampling system, which is characterized in that including the described in any item more PVT fluids of such as claim 1-9
The control circuit of sampling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811174817.5A CN109209366A (en) | 2018-10-09 | 2018-10-09 | A kind of control circuit and method of more PVT fluid samplings |
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| CN201811174817.5A CN109209366A (en) | 2018-10-09 | 2018-10-09 | A kind of control circuit and method of more PVT fluid samplings |
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| CN201811174817.5A Pending CN109209366A (en) | 2018-10-09 | 2018-10-09 | A kind of control circuit and method of more PVT fluid samplings |
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Application publication date: 20190115 |