Disclosure of Invention
The invention discloses a multifunctional measurement system and a measurement method for engineering parameters while drilling, which aim to solve any one of the above and other potential problems in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows: a multifunctional while-drilling engineering parameter measurement system, comprising:
the engineering parameter measuring unit is used for acquiring the hole diameter, the formation resistivity, the mud pressure and the vibration data in the real-time construction process;
the working attitude and orientation measuring unit is used for acquiring working attitude and orientation data of the instrument in the real-time construction process;
the mechanical steel collar structure is used for installing and protecting the engineering parameter measuring unit and the working attitude and direction measuring unit and improving the accuracy of measured data;
the upper computer is used for acquiring data acquired by the engineering parameter measuring unit and the working attitude and direction measuring unit, analyzing and processing the acquired data and outputting the data;
the engineering parameter measuring unit and the working attitude and orientation measuring unit are arranged in the mechanical steel collar structure, and the upper computer is in control connection with the engineering parameter measuring unit and the working attitude and orientation measuring unit.
Furthermore, the multifunctional while-drilling engineering parameter measuring device further comprises a centralizing wear-resistant belt which plays a role in centralizing and reduces mud resistance in the while-drilling process, and the centralizing wear-resistant belt is arranged on the outer side wall of the front end of the mechanical steel collar structure.
Further, the centralizing wear-resistant belt comprises at least 4 cuboid protrusions;
at least 4 the cuboid arch is arranged on the outer side wall of the front end of the mechanical steel collar structure at intervals of 90 degrees, and the included angle between each cuboid arch and the horizontal direction is inclined at 60 degrees.
Further, the engineering parameter measuring unit includes:
the ultrasonic well diameter measuring unit is used for transmitting and detecting sound waves according to certain interval time and receiving the sound waves reflected by the well wall;
the resistivity measurement module is used for measuring the resistivity of the drilling mud;
a pressure measurement unit for measuring drilling mud pressure;
the vibration measuring unit is used for monitoring the vibration signal born by the measuring device in real time;
the main control module is used for controlling the ultrasonic well diameter measuring unit, the resistivity measuring module, the pressure measuring unit and the vibration measuring unit and uploading data obtained by the ultrasonic well diameter measuring unit, the resistivity measuring module, the pressure measuring unit and the vibration measuring unit to an upper computer;
the ultrasonic well diameter measuring unit, the resistivity measuring module, the pressure measuring unit, the vibration measuring unit and the main control module are all arranged in the mechanical steel collar structure, and an ultrasonic probe of the ultrasonic well diameter measuring unit and a resistance probe of the resistivity measuring module are all arranged on the outer side wall of the mechanical steel collar structure 1;
the 3 ultrasonic probes of the ultrasonic well diameter measuring unit are arranged at intervals of 120 degrees;
the vibration measuring unit is arranged on the vibration measuring circuit board;
the ultrasonic well diameter measuring unit, the resistivity measuring module, the pressure measuring unit and the vibration measuring unit are all connected with the main control module.
Further, the main control module comprises a microcontroller, a power management unit, an RS485 communication unit, a Flash memory, a bus unit and a PCB;
the microcontroller, the power management unit, the Flash memory, the RS485 communication unit and the bus unit are all arranged on the PCB;
the RS485 communication unit, the power management unit and the Flash memory are connected with the microcontroller through a bus unit, the resistivity measurement module, the pressure measurement unit and the ultrasonic borehole diameter module are connected with the microcontroller, and the RS485 communication unit is connected with the upper computer;
the power management unit supplies power to the microcontroller, the RS485 communication unit, the Flash memory, the resistivity measurement module, the pressure measurement unit and the ultrasonic well diameter module.
Further, the working attitude and orientation measuring unit comprises an acceleration sensor, a fluxgate sensor and an inertial sensor;
the acceleration sensor, the fluxgate sensor and the inertial sensor are all arranged on the PCB and are connected with the microcontroller through the bus unit.
Further, the ultrasonic well diameter measuring unit comprises a power transmitting module and a DSP chip;
the ultrasonic transducer can generate high-voltage pulse excitation sound waves with the power of 400V and 250KHz, and after the sound waves are emitted, the ultrasonic transducer is switched into a passive mode to become a receiving transducer and acquire sound wave signals reflected by a well wall;
the resistivity measuring unit comprises a resistivity sensor and a resistance measuring circuit;
the pressure measurement unit comprises a paine pressure sensor and a pressure measurement circuit;
the vibration measuring unit comprises a triaxial acceleration sensor and a vibration resistance measuring circuit.
The invention also aims to provide a measuring method adopting the multifunctional while-drilling engineering parameter measuring system, which specifically comprises the following steps:
s1) installing the multifunctional parameter measurement system while drilling on a drill collar;
s2) when data are required to be collected, starting instructions are issued through the upper computer;
s3), the engineering parameter measuring unit and the working attitude and orientation measuring unit collect the working attitude and orientation data of the instrument in the construction process in real time, analyze and process the collected data, and then package and transmit the analyzed and processed data to an upper computer;
s4), the upper computer displays the received data.
Further, in S3), the ultrasonic borehole diameter measuring unit of the engineering parameter measuring unit emits a detection sound wave at certain intervals, and after the detection sound wave is reflected by the borehole wall, the ultrasonic borehole diameter measuring unit receives the reflected sound wave, processes the sound wave and sends the processed sound wave to the main control module;
the resistance measurement rate unit block collects the resistivity of the drilling mud in real time and sends the drilling mud to the main control module after processing;
the pressure measurement unit collects the pressure value of the slurry in the drilling well in real time;
the vibration measuring unit collects the vibration value born by the monitoring device in real time;
further, the interval time is 500ms-3 s.
The invention has the beneficial effects that: by adopting the technical scheme, the device is a highly integrated multifunctional parameter measuring device for the engineering while drilling, the posture, the direction, the borehole diameter, the formation resistivity and the vibration information of the pressure gauge can be completely obtained by one-time well descending, and powerful support is provided for the calculation of the engineering above the well and the error correction of the engineering while drilling. The master control module comprises a power management system and a 485 communication signal acquisition function, stable power supply is the basis for stable work of instrument equipment, the device can convert voltage on a bus into voltage required by each measuring circuit module, and the device has a plurality of 485 communication lines and can asynchronously upload acquired information in a time-sharing manner. The device is provided with a plurality of peripheral interfaces and independent power systems, all modules can be flexibly assembled, the whole instrument can work, required modules can be formulated to work independently, other logging equipment can be hung, and the device has high universality and flexibility. Compared with traditional single parameter measurement, the device integrates the measurement modules required by the measurement while drilling engineering measurement through the main control module, reasonable layout is carried out on a mechanical structure according to the structural characteristics of each measurement module sensor, voltage secondary distribution is carried out through a power management system, a plurality of 485 communication lines are designed to carry out time-sharing asynchronous signal transmission, complete engineering parameter information can be obtained by ensuring one-time well descending, and the measurement while drilling process is more visual, convenient, safe and reliable.
Detailed Description
The technical solution of the present invention is further explained below with reference to the specific embodiments and the accompanying drawings.
As shown in fig. 1, the multifunctional while-drilling engineering parameter measurement system of the present invention includes:
the engineering parameter measuring unit 2 is used for acquiring the hole diameter, the formation resistivity, the mud pressure and the vibration data in the real-time construction process;
the working attitude and orientation measuring unit 3 is used for acquiring working attitude and orientation data of the instrument in the real-time construction process;
the mechanical steel collar structure 1 is used for installing and protecting the engineering parameter measuring unit and the working attitude and direction measuring unit and improving the accuracy of measured data;
the upper computer 4 is used for acquiring data acquired by the engineering parameter measuring unit and the working attitude and direction measuring unit, analyzing and processing the acquired data and outputting the data;
the engineering parameter measuring unit 2 and the working attitude and orientation measuring unit 3 are arranged in the mechanical steel collar structure 1, and the upper computer 4 is connected with the engineering parameter measuring unit 2 and the working attitude and orientation measuring unit 3;
the multifunctional while-drilling engineering parameter measuring device further comprises a centralizing wear-resistant belt 5 which plays a role in centralizing and reduces mud resistance in the while-drilling process, and the centralizing wear-resistant belt 5 is arranged on the outer side wall of the front end of the mechanical steel collar structure 1.
The righting wear-resistant belt 5 comprises at least 4 cuboid protrusions 5-1;
at least 4 cuboid protrusions 5-1 are arranged on the outer side wall of the front end of the mechanical steel collar structure 1 at intervals of 90 degrees, and an included angle between each cuboid protrusion 5-1 and the horizontal direction is 60 degrees in an inclined mode.
The engineering parameter measuring unit 2 includes:
the ultrasonic well diameter measuring unit 2-1 is used for emitting detection sound waves according to a certain interval time and receiving the sound waves reflected by the well wall;
the resistivity measuring module 2-2 is used for measuring the resistivity of the drilling mud;
a pressure measuring unit 2-3 for measuring the drilling mud pressure;
the vibration measuring unit 2-4 is used for monitoring vibration signals borne by the measuring device in real time;
the main control module 2-5 is used for controlling the ultrasonic well diameter measuring unit 2-1, the resistivity measuring module 2-2, the pressure measuring unit 2-3 and the vibration measuring unit 2-4 and uploading data obtained by the ultrasonic well diameter measuring unit 2-1, the resistivity measuring module 2-2, the pressure measuring unit 2-3 and the vibration measuring unit 2-4 to the upper computer 4;
the ultrasonic well diameter measuring unit 2-1, the resistivity measuring module 2-2, the pressure measuring unit 2-3, the vibration measuring unit 2-4 and the main control module 2-5 are all arranged inside the mechanical steel collar structure 1, and the ultrasonic probe 2-6 of the ultrasonic well diameter measuring unit 2-1 and the resistance probe 2-8 of the resistivity measuring module 2-2 are all arranged on the outer side wall of the mechanical steel collar structure 1;
as shown in fig. 2, 3 ultrasonic probes 2-6 of the ultrasonic well diameter measuring unit 2-1 are arranged at intervals of 120 degrees;
the vibration measuring unit 2-3 is arranged on the vibration measuring circuit board 2-7;
the ultrasonic well diameter measuring unit 2-1, the resistivity measuring module 2-2, the pressure measuring unit 2-3 and the vibration measuring unit 2-4 are all connected with the main control module 2-5.
As shown in fig. 3, the main control module 2-5 includes a microcontroller 2-51, a power management unit 2-52, an RS485 communication unit 2-55, a bus unit 2-53 (not shown in the figure), a Flash memory 2-54, and a PCB board 2-56;
the microcontroller 2-51, the power management unit 2-52, the RS485 communication unit 2-55 and the Flash memory 2-54 are all arranged on the PCB 2-56;
the RS485 communication unit 2-53, the power management unit 2-52 and the Flash memory 2-54 are all connected with the microcontroller 2-51, the resistivity measurement module 2-2, the pressure measurement unit 2-3, the ultrasonic well diameter module 2-1 and the vibration measurement unit 2-4 are all connected with the microcontroller 2-51, and the RS485 communication unit 2-55 is connected with the upper computer 4;
the power management unit 2-52 supplies power to the microcontroller 2-51, the RS485 communication unit 2-55, the Flash memory 2-54, the resistivity measurement module 2-2, the pressure measurement unit 2-3, the ultrasonic well diameter module 2-1 and the vibration measurement unit 2-4;
the working attitude and orientation measuring unit 3 comprises an acceleration sensor 3-1, a fluxgate sensor 3-2 and an inertial sensor 3-3;
the acceleration sensor 3-1, the fluxgate sensor 3-2 and the inertial sensor 3-3 are all arranged on the PCB 2-56 and connected with the microcontroller 2-1.
As shown in fig. 4, the ultrasonic well diameter measuring unit 2-1 includes a power transmitting module and a DSP chip;
the ultrasonic transducer can generate high-voltage pulse excitation sound waves with the power of 400V and 250KHz, and after the sound waves are emitted, the ultrasonic transducer is switched into a passive mode to become a receiving transducer and acquire sound wave signals reflected by a well wall;
as shown in fig. 5, the resistivity measurement unit 2-2 includes a resistivity sensor and a resistance measurement circuit.
As shown in fig. 6, the pressure measurement unit 2-3 includes a paine pressure sensor and a pressure measurement circuit.
As shown in fig. 7, the shock measurement unit 2-4 includes a three-axis acceleration sensor and a shock resistance measurement circuit.
Another object of the present invention is to provide a measurement method using the above multifunctional while-drilling engineering parameter measurement system, the method specifically includes the following steps:
s1) installing the multifunctional parameter measurement system while drilling on a drill collar;
s2) when data are required to be collected, a starting instruction is issued by the upper computer 4;
s3), the engineering parameter measuring unit 2 and the working attitude and orientation measuring unit 3 acquire working attitude and orientation data of an instrument in the construction process in real time, analyze the acquired data, and then pack and transmit the analyzed data to the upper computer 4;
s4) the upper computer 4 displays the received data.
The S3) the ultrasonic well diameter measuring unit 2-1 of the engineering parameter measuring unit emits detection sound waves according to a certain interval time, and after the detection sound waves are reflected by the well wall, the ultrasonic well diameter measuring unit 2-1 receives the reflected sound waves, processes the sound waves and sends the processed sound waves to the main control module 2-5;
the resistivity measuring module 2-4 collects the resistivity of the drilling mud in real time and sends the drilling mud to the main control module after processing;
the pressure measurement unit 2-3 collects the pressure value of the mud in the drilling well in real time;
the vibration measuring unit 2-4 collects vibration values borne by the monitoring device in real time;
the long strip-shaped pressure sensor is positioned in the center of the instrument and used for monitoring the mud pressure in the water hole of the instrument, so that the influence of the instrument on the mud pressure can be considered as much as possible, and analog signals are converted into digital signals through the pressure measuring circuit and transmitted to the main control modules 2-5 in a packaging mode.
The resistivity sensor is embedded in the outer wall of the instrument above the pressure sensors 2-31 to measure the resistivity of the slurry, the sensor is required to be in contact with the slurry in an embedded installation mode, but the sensor cannot be scratched to a well wall to damage the sensor, and the resistivity measuring circuit converts the measured resistivity into a digital signal and then packages and transmits the digital signal to the main control module 2-5. Then, three ultrasonic probes 2-6 are mounted in an embedded mode, the three ultrasonic probes 2-6 are arranged at intervals of 120 degrees, the arrangement mode that the three points determine planes at equal intervals can reduce the borehole diameter measurement error, the number of sensors can be reduced by adopting a self-generating and self-receiving working mode, the instrument space is saved, three ultrasonic transducers firstly emit sound waves, then the sound waves are set to be a receiving mode by an ultrasonic measurement circuit, sound wave signals reflected by the borehole wall are collected, and the ultrasonic measurement circuit calculates borehole diameter information and then packs the information to be transmitted to the main control module 2-5. The vibration sensor is welded on the vibration measurement circuit board 2-6 and used for monitoring the vibration condition of the circuit board, and the measurement circuit on the vibration measurement circuit board 2-6 converts the vibration signal into a digital signal and then packages and transmits the digital signal to the main control module 2-5.
The ultrasonic hole diameter measuring module, the pressure measuring module, the resistivity measuring module and the vibration measuring module are positioned on the front side of the main control module 2-5, and the measuring modules need to transmit signals to the main control module 2-5. Therefore, the ultrasonic borehole diameter measuring circuit, the pressure measuring circuit, the resistivity measuring circuit and the vibration measuring circuit are all arranged around the instrument for one circle, so that measured signals can be conveniently transmitted to the bus and received by the main control modules 2-5 in batches. An acceleration sensor 3-1, a fluxgate sensor 3-2 and an inertial sensor 3-3 are welded on the main control module 2-5 and are used for measuring the attitude and the direction of the instrument. The main control module 2-5 uploads all the measured engineering parameter information to the upper computer 4 through the RS485 communication unit 2-55, as shown in fig. 8 and 9.
A centralizing wear-resistant belt 5 is also arranged on the outer wall of the instrument, so that the instrument can be centered and the abrasion of the instrument in the process of drilling can be reduced. The centralizing wear-resistant belt 5 adopts hard ethylene propylene rubber, resists slurry corrosion and has higher hardness. The wear-resistant belt is provided with 4 cuboid protrusions 5-1 at intervals of 90 degrees, and the included angle between each cuboid protrusion 5-1 and the horizontal direction is 60 degrees. On one hand, the device has a centralizing effect, and on the other hand, the device can reduce the mud resistance in the drilling process.
The main control module 2-5 is provided with a three-component acceleration sensor SCA3100-D07, an inertial sensor MS9001 and a three-component fluxgate sensor HMC5983, wherein the sensors can measure attitude and azimuth information, the information is analyzed by a main control chip ARM-STM32F417VGT6 and then stored in a Flash module, the main control module 2-5 is also provided with a power management unit 2-52, and a LIN5D power chip of the power management unit 2-52 can convert +48V voltage transmitted by a bus board into +/-7V to supply power to the main board module and a resistance measurement rate unit block and a vibration and pressure measurement unit.
48V changes 28V bleeder circuit, can be with the power supply of ultrasonic well diameter measuring unit conversion of +48V voltage, and the mainboard module adopts RS485 and other measuring module communications, and wherein RS485A \ B and ultrasonic well diameter communications, RS485C \ D link to each other with resistance measurement rate unit piece, pressure measuring unit, vibrations measuring unit respectively, and the timesharing is to mainboard transmission acquisition signal. The B485A and B485B are connected with the bus module to transmit all engineering parameter data to the bus.
The bus units 2-55 are responsible for packaging all engineering parameters, putting the engineering parameters on an instrument bus and transmitting the engineering parameters to an upper computer. The bus unit 2-55 chip adopts FPGA-A3P 250.
The ultrasonic well diameter measuring unit 2-1 is composed of two parts, including a power transmitting module and a DSP chip.
The power transmitting module is responsible for generating high-voltage pulses of 400V and 250KHz to excite three ultrasonic transducers, and the three transducers are arranged on the instrument at intervals of 120 degrees. When the ultrasonic borehole diameter data acquisition system works, the three ultrasonic probes simultaneously emit sound waves in a borehole according to a certain interval time, the sound waves are acquired by the three probes after being reflected by the borehole wall, signals are transmitted to an acquisition module in the ultrasonic borehole diameter module at the moment, and borehole diameter data calculation is carried out in the DSP chip.
The vibration measuring unit is responsible for monitoring the vibration condition borne by the instrument in real time, the drilling instrument usually works under the working condition of high-strength vibration, the vibration test of the instrument can help a drilling engineer to master the safety of the instrument, and the vibration generated during drilling speed is prevented from exceeding the bearing range of the instrument. A three-axis acceleration sensor ADXL278 is arranged on the module, so that acceleration information can be obtained, and corresponding vibration data can be obtained after the acceleration information is decoded by a module main control chip DSP.
The resistivity measurement module 2-2, the pressure measurement unit 2-3 and the vibration measurement unit 2-4 share one RS485 communication line, so that the resistivity measurement module, the pressure measurement unit and the vibration measurement unit should be arranged on the same side of the mechanical steel collar structure 1.
The multifunctional engineering while drilling parameter measurement system and the method thereof provided by the embodiment of the application are introduced in detail. The above description of the embodiments is only for the purpose of helping to understand the method of the present application and its core ideas; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
As used in the specification and claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.