CN107829726B - Logging while drilling instrument - Google Patents
Logging while drilling instrument Download PDFInfo
- Publication number
- CN107829726B CN107829726B CN201711336706.5A CN201711336706A CN107829726B CN 107829726 B CN107829726 B CN 107829726B CN 201711336706 A CN201711336706 A CN 201711336706A CN 107829726 B CN107829726 B CN 107829726B
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- sensor
- mandrel
- measuring
- drilling
- pressure
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- 238000005553 drilling Methods 0.000 title claims abstract description 72
- 230000001133 acceleration Effects 0.000 claims abstract description 49
- 239000002002 slurry Substances 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 abstract description 25
- 238000000034 method Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000126 substance Substances 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
- E21B47/00—Survey of boreholes or wells
- E21B47/08—Measuring diameters or related dimensions at the borehole
- E21B47/085—Measuring diameters or related dimensions at the borehole using radiant means, e.g. acoustic, radioactive or electromagnetic
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
-
- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/02—Automatic control of the tool feed
- E21B44/04—Automatic control of the tool feed in response to the torque of the drive ; Measuring drilling torque
-
- 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
- E21B47/00—Survey of boreholes or wells
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
- E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geophysics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Acoustics & Sound (AREA)
- Remote Sensing (AREA)
- Geophysics And Detection Of Objects (AREA)
- Earth Drilling (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention discloses a logging-while-drilling instrument, which belongs to the technical field of oil and gas exploration, and comprises a shell, a mandrel and a sensor, wherein the shell is tubular, the mandrel is arranged in the shell, a slurry channel is formed in the interior of the mandrel, the sensor comprises an ultrasonic sensor, a first pressure sensor, a first temperature sensor and a bridge strain gauge, the ultrasonic sensor is arranged on the shell and used for measuring the diameter of a well, the first pressure sensor is used for measuring the external slurry temperature of the shell, the bridge strain gauge is used for measuring the drilling pressure and the drilling torque, the magnetometer is arranged on the mandrel and used for obtaining the rotating speed of the instrument through measuring the change of the magnetic field intensity, the acceleration sensor is used for obtaining the well inclination and vibration parameters through measuring the acceleration, the second pressure sensor is used for measuring the internal slurry pressure of the mandrel, the second temperature sensor is used for measuring the internal slurry temperature of the mandrel, comprehensive measurement of the well condition and the mechanical parameters is realized, and the actual working state of the drilling process is mastered in time and scientific construction is carried out through mutual correction among the parameters.
Description
Technical Field
The invention relates to the technical field of oil and gas exploration, in particular to a logging while drilling instrument.
Background
The well condition and mechanical parameters in the drilling process mainly comprise real-time well deviation, well diameter, rotation parameters, vibration parameters, internal and external pressure and temperature, drilling pressure and drilling torque and the like, and have important significance for tracking and knowing the parameters.
Real-time well deviation provides a more accurate drilling orientation; the well diameter measurement can timely know the abrasion condition of the drill bit, the slurry flow rate and the influence of chemical components on the stratum, correct various measurements such as stratum resistivity, density and porosity, and provide data for future packer installation and well cementation operation. The measurement of the rotation parameters can provide positioning information for some azimuth measurement, and the instability of the rotation speed is also an important source of vibration; the measurement and control of vibration parameters can improve drilling efficiency, reduce abrasion of drilling tools, improve drilling precision, and prolong the service lives of the drilling tools and drilling equipment. The measurement and control of the internal and external pressure can maintain the safety and stability of drilling, and the sudden change of the internal and external pressure can be monitored to provide timely warning for the problems of the drilling tool or the well bore. The drilling pressure and the drilling torque are the power of drilling, and timely adjustment and optimization of the drilling pressure and the drilling torque can improve the drilling efficiency and protect the drilling tool and the drilling tool.
Currently, in the drilling process, underground measurement of some important parameters such as drilling pressure and drilling torque is not realized, instruments focusing on well conditions and mechanical parameters are still to be developed, and measurement of the mechanical parameters is generally used as an aid for measuring physical parameters of stratum, so that the types of measured parameters are few, and the precision is low. The measuring instrument cannot comprehensively measure well conditions and various mechanical parameters, and the mechanical parameters have an interactive relationship, such as drilling pressure and drilling torque, drilling pressure and internal and external pressure, real-time well deviation and rotation parameters and vibration parameters. If the individual parameters cannot be measured comprehensively and corrected with respect to one another, errors can occur in the measured data.
Disclosure of Invention
The invention aims to provide a logging while drilling instrument, which solves the technical problems that the well condition and various mechanical parameters cannot be comprehensively measured, the measurement precision is low and the error is large in the prior art.
The technical scheme adopted by the invention is as follows:
a logging-while-drilling instrument, comprising:
A casing having a tubular shape;
The mandrel is arranged in the shell, and a slurry channel is formed in the mandrel in a hollow mode;
The sensor comprises an ultrasonic sensor, a first pressure sensor, a first temperature sensor and a bridge type strain gauge, wherein the ultrasonic sensor is arranged on the shell and used for measuring the well diameter, the first pressure sensor is used for measuring the external mud pressure of the shell, the first temperature sensor is used for measuring the external mud temperature of the shell, and the bridge type strain gauge is used for measuring the drilling pressure and the drilling torque; the sensor also comprises a magnetometer which is arranged on the mandrel and used for obtaining the rotation speed of the instrument by measuring the intensity change of the magnetic field, an acceleration sensor which is used for obtaining the well deviation and vibration parameters by measuring the acceleration, a second pressure sensor which is used for measuring the internal mud pressure of the mandrel and a second temperature sensor which is used for measuring the internal mud temperature of the mandrel.
The ultrasonic sensors are arranged in the shell and are uniformly distributed at intervals along the circumferential direction of the mandrel.
The magnetic force meter is positioned in the first accommodating groove and measures the magnetic field intensity when the mandrel rotates.
Wherein the acceleration sensor includes:
the first single-axis acceleration sensor is positioned in the first accommodating groove and is arranged at intervals with the magnetometer;
The triaxial acceleration sensor is positioned in the first accommodating groove, and the triaxial acceleration sensor and the first uniaxial acceleration sensor are arranged along the radial direction of the mandrel in a right opposite mode.
The outer surface of the mandrel is provided with a second accommodating groove along the circumferential direction, the second accommodating groove and the first accommodating groove are distributed at intervals along the axial direction of the mandrel, and the acceleration sensor further comprises a second single-axis acceleration sensor positioned in the second accommodating groove.
The first temperature sensor is located on one side of the first pressure sensor along the axial direction of the shell, and the second temperature sensor is located on one side of the second pressure sensor along the axial direction of the mandrel.
Wherein the first pressure sensor and the second pressure sensor are axially located at the same position.
Wherein, two bridge strain gauges are sealed in the shell and are located the position that the inside and outside wall of shell all contacted with mud.
The bridge type strain gauges are located at the same position along the axial direction of the shell, and the bridge type strain gauges are arranged opposite to each other along the radial direction of the shell.
Wherein the length of the housing is no greater than 2.5m.
The invention has the beneficial effects that:
The invention provides a logging-while-drilling instrument which comprises a shell, a mandrel and a plurality of sensors, wherein the shell is tubular, the mandrel is arranged in the shell, a slurry channel is formed in the interior of the mandrel, the plurality of sensors are arranged, the ultrasonic sensors are used for measuring the diameter of a well, the magnetometer is used for obtaining the rotating speed of the instrument by measuring the intensity change of a magnetic field, and the acceleration sensor can be used for measuring vibration parameters and can be used for real-time well deviation measurement after the centrifugal force measured by the rotating speed of the magnetometer is corrected; the first pressure sensor and the first temperature sensor are used for measuring the pressure and the temperature of slurry outside the shell, the second pressure sensor and the second temperature sensor are used for measuring the pressure and the temperature of slurry inside the mandrel, and the bridge type strain gauge can obtain drilling pressure and drilling torque through internal and external pressure correction. Therefore, the instrument realizes comprehensive measurement of well conditions and mechanical parameters, obtains more accurate drilling parameters through mutual correction among the parameters, is convenient for timely grasping the actual working state of the drilling process and carrying out scientific construction, and reduces the failure rate; and the instrument has simple structure, is easy to install and replace, and is suitable for batch production.
Drawings
FIG. 1 is a schematic diagram of a logging-while-drilling instrument provided by the present invention;
FIG. 2 is a schematic illustration of the detection of an acceleration sensor of the logging while drilling instrument provided by the present invention;
FIG. 3 is a schematic diagram of the structure of the logging while drilling instrument provided by the present invention in use.
In the figure:
100. Logging while drilling instrument; 200. a drill rod; 300. a formation; 400. a derrick; 500. a drill bit; 600. a measurement while drilling tool;
1. a housing; 2. a mandrel; 3. an ultrasonic sensor; 4. a first pressure sensor; 5. a first temperature sensor; 6. a bridge strain gauge; 7. a magnetometer; 8. an acceleration sensor; 9. a second pressure sensor; 10. a second temperature sensor;
21. a first accommodating groove; 22. a second accommodating groove;
81. A first single-axis acceleration sensor; 82. a three-axis acceleration sensor; 83. and a second single-axis acceleration sensor.
Detailed Description
In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the invention more clear, the technical scheme of the invention is further described below by a specific embodiment in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present invention are shown.
Referring to fig. 1 and 2, a logging-while-drilling instrument 100 is provided for the integrated measurement of well conditions and mechanical parameters during drilling.
The logging while drilling instrument 100 comprises a shell 1, a mandrel 2 and a sensor, wherein the shell 1 is tubular, the mandrel 2 is arranged in the shell 1, and a slurry channel is formed by the hollow inside of the mandrel 2; the sensors are of a plurality of types, including an ultrasonic sensor 3, a first pressure sensor 4, a first temperature sensor 5 and a bridge strain gauge 6 which are arranged on the shell 1, and a magnetometer 7, an acceleration sensor 8, a second pressure sensor 9 and a second temperature sensor 10 which are arranged on the mandrel 2; the ultrasonic sensor 3 is used for measuring the well diameter, the magnetometer 7 obtains the rotating speed of the instrument by measuring the intensity change of the magnetic field, and the acceleration sensor 8 can not only measure the vibration parameter, but also can be used for measuring the well deviation in real time after being corrected by the centrifugal force measured by the rotating speed of the magnetometer 7; the first pressure sensor 4 and the first temperature sensor 5 are used for measuring the pressure and the temperature of slurry outside the shell 1, the second pressure sensor 9 and the second temperature sensor 10 are used for measuring the pressure and the temperature of slurry inside the mandrel 2, and the bridge type strain gauge 6 can obtain the drilling pressure and the drilling torque through internal and external pressure correction.
The ultrasonic sensors 3 are arranged in the shell 1 and are uniformly distributed at intervals along the circumferential direction of the mandrel 2. In this embodiment, three ultrasonic sensors 3 are provided, each ultrasonic sensor 3 measures its own distance from the well wall, and the three measured values and the outer diameter of the instrument are subjected to data processing to obtain a well diameter value. The signal of the ultrasonic sensor 3 is rapidly weakened in the mud, so that when the ultrasonic sensor 3 is installed, the ultrasonic sensor is positioned close to the well diameter, but no rock debris accumulation is caused, and the mud is blocked from passing through to cause abrasion.
The outer surface of the mandrel 2 is provided with a first accommodating groove 21 and a second accommodating groove 22 along the circumferential direction, and the second accommodating groove 22 and the first accommodating groove 21 are distributed at intervals along the axial direction of the mandrel 2. The magnetometer 7 is positioned in the first containing tank 21 and the rotation speed of the instrument is obtained by measuring the variation of the magnetic field strength.
The acceleration sensor 8 includes a first uniaxial acceleration sensor 81, a triaxial acceleration sensor 82, and a second uniaxial acceleration sensor 83, the first uniaxial acceleration sensor 81 is located in the first accommodating groove 21 and is disposed at an interval from the magnetometer 7, the triaxial acceleration sensor 82 is located in the first accommodating groove 21, the triaxial acceleration sensor 82 and the first uniaxial acceleration sensor 81 are disposed opposite to each other along the radial direction of the mandrel 2, and the second uniaxial acceleration sensor 83 is located in the second accommodating groove 22. The acceleration sensor 8 should be placed at a position close to the central line of the mandrel 2 as much as possible, i.e. the first accommodating groove 21 and the second accommodating groove 22 should be opened as deep as possible on the premise of not affecting the strength of the mandrel 2, thereby reducing the influence of centrifugal force and reducing the correction difficulty.
The triaxial acceleration sensor 82, the first uniaxial acceleration sensor 81, the second uniaxial acceleration sensor 83, and the magnetometer 7 perform measurement of vibration parameters. As indicated by the arrow direction in fig. 2, a first axis of the triaxial acceleration sensor 82 is parallel to the axial direction of the spindle 2 to measure the axial acceleration, a second axis is parallel to the radial direction of the spindle 2 and perpendicular to the first axis, and the measured value is corrected by the centrifugal force calculated by the rotation speed of the magnetometer 7 to obtain the radial acceleration; the third shaft is tangential to the circumferential direction of the mandrel 2 and perpendicular to the first shaft and the second shaft, the first single-axis acceleration sensor 81 and the third shaft are reversely placed at the radial symmetrical position of the mandrel 2, the addition average value of the two measured values of the third shaft and the first single-axis acceleration sensor 81 obtains circumferential acceleration, and the subtraction average value obtains tangential acceleration.
The second single axis acceleration sensor 83 can be used to make real-time inclinations measurements after correction by the centrifugal force calculated from the rotational speed of the magnetometer 7.
The first temperature sensor 5 is positioned at one side of the first pressure sensor 4 along the axial direction of the shell 1, and the distance between the first temperature sensor 5 and the first pressure sensor 4 is smaller than 10cm; along the axial direction of the mandrel 2, a second temperature sensor 10 is located at one side of the second pressure sensor 9, and the distance between the second temperature sensor 10 and the second pressure sensor 9 is smaller than 10cm. The temperature sensor and the pressure sensor need to be placed in a close range, the pressure sensor needs to correct the measured value of the temperature sensor, and the accuracy of pressure measurement can be affected due to the fact that the temperature sensor and the pressure sensor are separated too far.
The first pressure sensor 4 and the second pressure sensor 9 are located at the same position in the axial direction, and the difference between the two pressures can be used for evaluating lost circulation, because a pressure difference is generated in slurry flow, and the first pressure sensor 4 and the second pressure sensor 9 are not separated too far, otherwise inaccurate measurement is caused.
Both bridge strain gauges 6 are sealed within the housing 1 and located where the inner and outer walls of the housing are in contact with the mud, thereby minimizing strain due to differential pressure between the inside and outside. The two bridge strain gauges 6 are positioned at the same position along the axial direction of the shell 1, and the two bridge strain gauges 6 are arranged opposite to each other along the radial direction of the shell 1, namely, the two bridge strain gauges 6 form an included angle of 180 degrees, so that the correction is easy. The two bridge strain gauges 6 can obtain the drilling pressure and the drilling torque through internal and external pressure correction. In this embodiment, a wheatstone bridge strain gauge is used.
In the present embodiment, by optimally arranging various types of sensors, the length of the housing 1 is not more than 2.5m, and the diameter of the housing is between 120mm and 210mm, so that the housing can be used in a well diameter of from six inches to twelve inches.
As shown in fig. 3, when the logging while drilling instrument 100 is in use, the drilling rod 200 is extended into the stratum 300, one end of the drilling rod 200 is connected with the derrick 400, the drill bit 500 is installed at the other end, the logging while drilling instrument 100 is installed at the bottom of the drilling rod 200 and near the drill bit 500, the logging while drilling instrument 100 can be placed at any one of two ends of the logging while drilling instrument 600, the power of the logging while drilling instrument 100 is provided by a battery, and measurement data can be stored in the logging while drilling instrument 100, or can be uploaded to ground equipment in real time through the logging while drilling instrument 600.
In summary, the logging while drilling instrument 100 is capable of performing comprehensive measurements of well conditions and mechanical parameters, calibrating each measurement value with respect to the other, and developing a calibration relationship between each measurement value and the other measurement value by selecting the measurement parameters and researching a relative relationship between the measurement parameters. In addition, the length of the instrument can be effectively controlled while the measurement of a plurality of parameters is completed, so that the distance between the measuring point and the drill bit 500 is reduced.
The above embodiments merely illustrate the basic principle and features of the present invention, and the present invention is not limited to the above embodiments, but may be varied and altered without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A logging-while-drilling instrument, comprising:
A casing (1) having a tubular shape;
the mandrel (2) is arranged in the shell (1), and a slurry channel is formed in the mandrel (2) in a hollow mode;
The sensor comprises an ultrasonic sensor (3) arranged on the shell (1) and used for measuring the well diameter, a first pressure sensor (4) used for measuring the external mud pressure of the shell (1), a first temperature sensor (5) used for measuring the external mud temperature of the shell (1) and a bridge type strain gauge (6) used for measuring the drilling pressure and the drilling torque; the sensor further comprises a magnetometer (7) arranged on the mandrel (2) and used for obtaining the rotation speed of the instrument by measuring the intensity change of a magnetic field, an acceleration sensor (8) used for obtaining well deviation and vibration parameters by measuring acceleration, a second pressure sensor (9) used for measuring the internal slurry pressure of the mandrel (2) and a second temperature sensor (10) used for measuring the internal slurry temperature of the mandrel (2);
The ultrasonic sensors (3) are arranged in the shell (1) and are uniformly distributed at intervals along the circumferential direction of the mandrel (2);
the outer surface of the mandrel (2) is provided with a first accommodating groove (21) along the circumferential direction, and the magnetometer (7) is positioned in the first accommodating groove (21) and measures the magnetic field intensity when the mandrel (2) rotates;
the acceleration sensor (8) includes:
the first single-axis acceleration sensor (81) is positioned in the first accommodating groove (21) and is arranged at intervals with the magnetometer (7);
The triaxial acceleration sensor (82) is positioned in the first accommodating groove (21), and the triaxial acceleration sensor (82) and the first uniaxial acceleration sensor (81) are arranged opposite to each other along the radial direction of the mandrel (2);
The outer surface of the mandrel (2) is provided with a second accommodating groove (22) along the circumferential direction, the second accommodating groove (22) and the first accommodating groove (21) are distributed at intervals along the axial direction of the mandrel (2), and the acceleration sensor (8) further comprises a second single-axis acceleration sensor (83) positioned in the second accommodating groove (22).
2. Logging-while-drilling instrument according to claim 1, characterized in that the first temperature sensor (5) is located on one side of the first pressure sensor (4) in the axial direction of the housing (1) and the second temperature sensor (10) is located on one side of the second pressure sensor (9) in the axial direction of the mandrel (2).
3. Logging-while-drilling instrument according to claim 2, characterized in that the first pressure sensor (4) is axially co-located with the second pressure sensor (9).
4. Logging-while-drilling instrument according to claim 1, characterized in that both bridge strain gauges (6) are sealed within the housing (1) and are located where both the inner and outer walls of the housing (1) are in contact with mud.
5. Logging-while-drilling instrument according to claim 4, characterized in that two of the bridge strain gauges (6) are co-located along the axial direction of the housing (1), the two bridge strain gauges (6) being arranged diametrically opposite to the housing (1).
6. Logging-while-drilling instrument according to any of claims 1-5, characterized in that the length of the housing (1) is not more than 2.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711336706.5A CN107829726B (en) | 2017-12-14 | 2017-12-14 | Logging while drilling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711336706.5A CN107829726B (en) | 2017-12-14 | 2017-12-14 | Logging while drilling instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107829726A CN107829726A (en) | 2018-03-23 |
| CN107829726B true CN107829726B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711336706.5A Active CN107829726B (en) | 2017-12-14 | 2017-12-14 | Logging while drilling instrument |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343427B (en) * | 2018-04-24 | 2024-07-09 | 杭州丰禾石油科技有限公司 | Logging while drilling instrument mandrel |
| CN108361022B (en) * | 2018-04-25 | 2020-11-03 | 杭州丰禾石油科技有限公司 | Logging-while-drilling instrument shell and logging-while-drilling instrument |
| US11692432B2 (en) * | 2018-06-11 | 2023-07-04 | Schlumberger Technology Corporation | Real time surveying while drilling |
| CN110530983B (en) * | 2019-09-20 | 2021-10-08 | 济源职业技术学院 | Ultrasonic detection system and method for oil drilling tool sucker rod |
| CN110702621A (en) * | 2019-10-10 | 2020-01-17 | 西安石油大学 | A device and method for detecting dissolved gas while drilling based on laser or infrared technology |
| CN112780262A (en) * | 2021-01-04 | 2021-05-11 | 中国石油天然气集团有限公司 | Well leakage position identification device and method based on while-drilling ultrasonic caliper logging |
| US11713651B2 (en) * | 2021-05-11 | 2023-08-01 | Saudi Arabian Oil Company | Heating a formation of the earth while drilling a wellbore |
| CN114562255B (en) * | 2022-03-01 | 2023-03-24 | 杭州丰禾石油科技有限公司 | Underground bit pressure torque measurement while drilling instrument and underground bit pressure torque measurement method |
| CN119914263A (en) * | 2025-01-23 | 2025-05-02 | 中国地质大学（武汉） | Self-protection device and method for downhole detection while drilling cabin based on adaptive control |
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