CN109781340B - Bit pressure and torque calibration test device and calibration method - Google Patents
Bit pressure and torque calibration test device and calibration method Download PDFInfo
- Publication number
- CN109781340B CN109781340B CN201910059540.XA CN201910059540A CN109781340B CN 109781340 B CN109781340 B CN 109781340B CN 201910059540 A CN201910059540 A CN 201910059540A CN 109781340 B CN109781340 B CN 109781340B
- Authority
- CN
- China
- Prior art keywords
- measuring instrument
- engineering parameter
- underground engineering
- parameter measuring
- torque
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a drilling pressure and torque calibration test device, which comprises a base (1), long stand columns (2), short stand columns (3), a platform (4), force transmission columns (5) and a cross beam (6), wherein the top surface of the base (1) is fixedly provided with four long stand columns (2), the four long stand columns (2) are distributed in a rectangular array, the cross beam (6) is fixedly arranged between the four long stand columns (2), a through hole is formed in the cross beam (6), a centralizing sleeve (7) is fixedly arranged in the through hole, the force transmission columns (5) capable of vertically sliding through the centralizing sleeve (7) are arranged in the centralizing sleeve (7), a hinge seat (8) is arranged between the two long stand columns (2) on the left side, a large rotating arm (9) is hinged on the hinge seat (8), and a chuck (10) is fixedly arranged on the base (1) and under the force transmission columns (5); it also discloses a calibration method. The invention has the beneficial effects that: the measurement accuracy of the underground drilling pressure and the torque is improved, and the device has higher control accuracy and higher pressure testing capability.
Description
Technical Field
The invention relates to a bit pressure and torque calibration test device and a calibration method.
Background
Accurate acquisition of drilling engineering parameters such as weight-on-bit, torque and the like is of great significance in reducing drilling risks and accidents, and the parameters can be generally acquired through a comprehensive logging means. The parameters acquired by comprehensive logging are more accurate under the condition of a straight well with shallow depth, the authenticity and the practicability in boreholes with deep depth and complex structures (two-dimensional boreholes and three-dimensional boreholes) are obviously reduced, and the engineering parameters such as ground drilling pressure, ground torque and the like acquired by the comprehensive logging on the ground cannot accurately identify the underground abnormal working conditions (such as the abrasion condition of a drill bit, the damage condition of the drill bit, the real drilling pressure value and the like), because the interaction process of the drill string and the well wall is complex in the drilling process, the interference cannot be completely eliminated by the conventional model and the measuring method. Therefore, in the drilling of non-vertical wells such as directional wells, horizontal wells, extended reach wells and the like, the accurate acquisition of the most common and important drilling engineering parameters in the drilling engineering is urgent.
With the development of electronic measurement technology, it is possible to gradually convert the measurement of drilling engineering parameters from surface measurement to downhole measurement while drilling. The underground while-drilling engineering parameter measuring method is mainly characterized by adopting underground measuring short section (also called underground engineering parameter measuring instrument) to make measurement while drilling, generally including four portions of underground sensor, data acquisition system, underground memory and ground data interpretation and processing system, and usually installing the underground sensor near the drill bit position (or directly installing it on the drill bit) to measure the engineering parameters of drill pressure and torque, etc.. The measuring nipple can also be installed at different positions of a drill column, working parameters of the drill column can be measured when the measuring nipple is installed on the upper drill column, drilling engineering parameters can be measured when the measuring nipple is connected to a position close to a drill bit, normal work of the drill column cannot be influenced by the measuring nipple, and various engineering parameters under the working state of the drill column can be measured in real time. At present, most of underground engineering parameter measuring instruments at home and abroad can realize synchronous execution of underground acquisition, underground storage and data transmission while drilling, measured data is stored in an underground memory in the drilling process, meanwhile, the data is transmitted to the ground in real time through MWD, and data playback and data transmission of MWD are compared and analyzed after the drilling is started, so that the problem caused by data transmission distortion can be effectively avoided. At present, the downhole engineering parameter measuring tool with good performance is available abroad, and the domestic technology is not mature enough. The foreign measuring tool can adapt to the environmental pressure of 140MPa, the environmental temperature of 150 ℃, can measure a plurality of parameters such as the bit pressure (axial force), the torque, the bending moment, the rotating speed, the three-axis acceleration, the slurry pressure inside and outside the drill stem, the bit pressure drop and the temperature, has high intelligent degree, large data acquisition and processing capacity and high measuring precision, and the measured data has important guiding significance for drilling, but has high price.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a bit pressure and torque calibration test device and a calibration method which have the advantages of compact structure, simple method, higher control precision and higher pressure test capability, and can improve the measurement precision of the bit pressure and the torque under the well.
The purpose of the invention is realized by the following technical scheme: a drilling pressure and torque calibration test device comprises a base, long stand columns, short stand columns, a platform, a force transmission column and a cross beam, wherein four long stand columns are fixedly arranged on the top surface of the base and distributed in a rectangular array; still set firmly two short stands on the top surface of base, short stand is located the front side of long stand, just is located its top between two short stands and has set firmly the platform, sets firmly the fixed hinge of left holder and the fixed hinge of right holder on the top surface of platform.
The long upright post and the short upright post are both perpendicular to the base.
The method for calibrating the bit pressure and the torque of the test device comprises the steps of calibrating the bit pressure and calibrating the torque;
the weight on bit calibration comprises the following steps:
s1, firstly, installing the underground engineering parameter measuring instrument between the chuck and the force transmission column, fixing the underground engineering parameter measuring instrument, pressing the large rotating arm on the force transmission column, and transmitting the force to the top of the underground engineering parameter measuring instrument by the force transmission column;
s2, connecting a data acquisition board of the underground engineering parameter measuring instrument and a data acquisition computer by using a data playback line, supplying power through a USB interface of the computer, and establishing communication with the computer through a serial port;
s3, measuring strain gauge bridge circuit output voltage of the underground engineering parameter measuring instrument by using an 8-bit half-digital multimeter, and recording software data to test bit pressure output zero point;
s4, hanging a weight A with the weight of 1000kg or 2000kg at the right end of the large rotating arm, placing for 2-3 h, observing the drifting condition, measuring the strain gauge bridge output voltage of the underground engineering parameter measuring instrument by using an 8-bit half-digital multimeter, recording software data, testing whether the underground engineering parameter measuring instrument drilling pressure strain gauge bridge drifts, and carrying out formal loading and unloading calibration if no obvious drift exists;
s5, hanging weights A at the right end of the large rotating arm by 1, 2 and 3 step by step until the number of the weights A is enough, measuring the output voltage of a drilling pressure strain gauge bridge circuit of the underground engineering parameter measuring instrument by using an 8-bit half-digital multimeter during each weight A adding, and recording software data;
s6, gradually removing weights A at the right end of the large rotating arm until only 1 weight A is left, measuring the drilling pressure strain gage bridge output voltage of the underground engineering parameter measuring instrument by using an 8-bit half-digital multimeter when the weights A are removed each time, and recording software data;
s7, A, B, C three stress points are arranged on the large rotating arm, and if the large rotating arm is balanced under the action of the gravity G of the weight A and the bit pressure WOB borne on the underground engineering parameter measuring instrument, the large rotating arm has the following functions according to the lever static force balance principle:
g × AC ═ WOB × AB, wherein AB is the distance between the force bearing point A and the force bearing point B, AC is the distance between the force bearing point A and the force bearing point C, and the weight on bit WOB applied to the underground engineering parameter measuring instrument is obtained by transforming the formula:
s8, performing linear fitting on the recorded output voltage digital signal and the applied bit pressure WOB to obtain a bit pressure output zero reference value and a corresponding conversion relation;
the torque calibration comprises the following steps:
s1, clamping the underground engineering parameter measuring instrument between the left clamp holder fixed hinge and the right clamp holder fixed hinge, fixing a small rotating arm at one end of the underground engineering parameter measuring instrument, and applying the torsional force of the small rotating arm to the underground engineering parameter measuring instrument;
s2, connecting a data acquisition board of the underground engineering parameter measuring instrument and a data acquisition computer by using a data playback line, supplying power through a USB interface of the computer, and establishing communication with the computer through a serial port;
s3, measuring the bridge output voltage of the strain gauge torque strain gauge of the underground engineering parameter measuring instrument by using an 8-bit half-digital multimeter, and recording software data to test a torque output zero point;
s4, hanging a weight B with the weight of 500kg at the free end of the small rotating arm, placing for 2-3 h, observing the drift condition, measuring the output voltage of a torque strain gauge bridge circuit of the underground engineering parameter measuring instrument by using an 8-bit half-digital multimeter, recording software data to test whether the torque strain gauge bridge circuit of the underground engineering parameter measuring instrument drifts or not, and carrying out formal loading and unloading calibration if no obvious drift exists;
s5, hanging weights B at the free end of the small rotating arm step by 1, 2 and 3 until the number of the weights B is enough, measuring the output voltage of a torque strain sheet bridge circuit of the underground engineering parameter measuring instrument by using an 8-bit half-digital multimeter during weight adding B each time, and recording software data;
s6, gradually removing weights B at the right end of the small rotating arm until only 1 weight B is left, measuring the output voltage of a torque strain gauge bridge circuit of the underground engineering parameter measuring instrument by using an 8-bit half-digital multimeter when the weight B is removed each time, and recording software data;
s7, the small rotating arm is stressed by D, E points, if the small rotating arm is balanced under the action of the gravity G of the weight B and the torque TOB stressed on the underground engineering parameter measuring instrument, and the included angle between DE and the horizontal position is theta, the torque TOB exerted on the underground engineering parameter measuring instrument is as follows according to the lever static force balance principle:
g × DE × cos θ, where DE is the distance between the D force point and the E force point;
and S8, performing linear fitting on the recorded output voltage digital signal and the applied torque to obtain a torque output zero reference value and a corresponding conversion relation.
The invention has the following advantages: the invention has compact structure and simple method, improves the measurement precision of the underground drilling pressure and the torque, and has higher control precision and higher precision.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a schematic diagram of the operation of weight-on-bit calibration;
FIG. 5 is an operational schematic of torque calibration;
FIG. 6 is a right side view of FIG. 5;
FIG. 7 is a graph of weight-on-bit calibration results;
FIG. 8 is a graph of torque calibration results.
Detailed Description
The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:
as shown in fig. 1 to 3, a drilling pressure and torque calibration test device comprises a base 1, long upright columns 2, short upright columns 3, a platform 4, force transmission columns 5 and cross beams 6, wherein the top surface of the base 1 is fixedly provided with the four long upright columns 2, the four long upright columns 2 are distributed in a rectangular array, the cross beams 6 are fixedly arranged between the four long upright columns 2, the cross beams 6 are provided with through holes, a centralizing sleeve 7 is fixedly arranged in the through holes, the force transmission columns 5 capable of sliding up and down are arranged in the centralizing sleeve 7, a hinge base 8 is arranged between the two left long upright columns 2, a large rotating arm 9 is hinged on the hinge base 8, and a chuck 10 is fixedly arranged on the base 1 and under the force transmission columns 5; still set firmly two short stand 3 on the top surface of base 1, short stand 3 is located the front side of long stand 2, and platform 4 has set firmly between two short stand 3 and be located its top, and the top surface of platform 4 sets firmly left holder fixed hinge 11 and right holder fixed hinge 12.
The long upright post 2 and the short upright post 3 are both vertical to the base 1.
The method for calibrating the bit pressure and the torque of the test device comprises the steps of calibrating the bit pressure and calibrating the torque;
the weight on bit calibration comprises the following steps:
as shown in fig. 4, S1, first, the downhole engineering parameter measuring instrument 14 is installed between the chuck 10 and the force transmission column 5, and the downhole engineering parameter measuring instrument 14 is fixed, at this time, the large rotating arm 9 presses on the force transmission column 5, and the force transmission column 5 transmits the force to the top of the downhole engineering parameter measuring instrument 14;
s2, connecting a data acquisition board of the underground engineering parameter measuring instrument 14 and a data acquisition computer by using a data playback line, supplying power through a USB interface of the computer, and establishing communication with the computer through a serial port;
s3, measuring the bridge output voltage of the strain gauge of the underground engineering parameter measuring instrument 14 by using an 8-bit half-digital multimeter, and recording software data to test the bit pressure output zero point;
s4, hanging a weight A13 with the weight of 1000kg or 2000kg at the right end of the large rotating arm 9, placing for 2-3 h, observing the drifting condition, measuring the bridge output voltage of a strain gauge 14 of the underground engineering parameter measuring instrument by using an 8-bit half-digital multimeter, recording software data, testing whether the bridge of the underground engineering parameter measuring instrument 14 of the drilling pressure strain gauge drifts, and carrying out formal loading and unloading calibration if no obvious drift exists;
s5, hanging weights A13 at the right end of the large rotating arm 9 by 1, 2 and 3 step by step until the number of the weights A is enough, measuring the output voltage of a drilling pressure strain gauge bridge of the underground engineering parameter measuring instrument 14 by using an 8-bit half-digital multimeter every time the weights A are added, and recording software data;
s6, gradually removing weights A at the right end of the large rotating arm 9 until only 1 weight A is left, measuring the drilling pressure strain gage bridge output voltage of the underground engineering parameter measuring instrument 14 by using an 8-bit half-digital multimeter when the weights A are removed each time, and recording software data;
s7, A, B, C three stress points are arranged on the large rotating arm 9, if the large rotating arm 9 is balanced under the action of the gravity G of the weight A13 and the bit pressure WOB borne by the underground engineering parameter measuring instrument 14, the method comprises the following steps according to the lever static force balance principle:
g × AC ═ WOB × AB, where AB is the distance between the a force point and the B force point and AC is the distance between the a force point and the C force point, the weight on bit WOB applied to the downhole engineering parameter gauge 14 is transformed from the above equation:
s8, performing linear fitting on the recorded output voltage digital signal and the applied bit pressure WOB to obtain a bit pressure output zero reference value and a corresponding conversion relation;
the torque calibration comprises the following steps:
as shown in fig. 5 to 6, S1, first clamping the downhole engineering parameter measuring instrument 14 between the left clamp holder fixing hinge 11 and the right clamp holder fixing hinge 12, and fixing a small rotating arm 15 at one end of the downhole engineering parameter measuring instrument 14, where the downhole engineering parameter measuring instrument 14 is subjected to a torsional force of the small rotating arm 15;
s2, connecting a data acquisition board of the underground engineering parameter measuring instrument 14 and a data acquisition computer by using a data playback line, supplying power through a USB interface of the computer, and establishing communication with the computer through a serial port;
s3, measuring the bridge circuit output voltage of the 14 torque strain gauge of the underground engineering parameter measuring instrument by using an 8-bit half-digital multimeter, and recording software data to test a torque output zero point;
s4, hanging a weight B16 with the weight of 500kg at the free end of the small rotating arm 15, placing for 2-3 h, observing the drifting condition, measuring the output voltage of the 14 torque strain sheet bridge of the underground engineering parameter measuring instrument by using an 8-bit half-digital multimeter, recording software data, testing whether the 14 torque strain sheet bridge of the underground engineering parameter measuring instrument drifts or not, and carrying out formal loading and unloading calibration if no obvious drift exists;
s5, hanging weights B16 from 1, 2 and 3 at the free end of the small rotating arm 15 step by step until the number of the weights B16 is enough, measuring the bridge output voltage of the torque strain gauge 14 of the underground engineering parameter measuring instrument by using an 8-bit half-digital multimeter during each weight adding, and recording software data;
s6, gradually removing weights B at the right end of the small rotating arm 15 until only 1 weight B is left, measuring the output voltage of the torque strain gauge bridge of the underground engineering parameter measuring instrument 14 by using an 8-bit half-digital multimeter when the weight B is removed each time, and recording software data;
s7, the small rotating arm 15 is stressed by D, E two points, if the small rotating arm 15 is balanced under the action of the gravity G of the weight B16 and the torque TOB borne by the underground engineering parameter measuring instrument 14, and the included angle between DE and the horizontal position is theta, the torque TOB exerted on the underground engineering parameter measuring instrument 14 is as follows according to the lever static force balance principle:
g × DE × cos θ, where DE is the distance between the D force point and the E force point;
and S8, performing linear fitting on the recorded output voltage digital signal and the applied torque to obtain a torque output zero reference value and a corresponding conversion relation.
The invention utilizes the underground engineering parameter measuring instrument to accurately measure the bit pressure and the torque, thereby greatly improving the measurement accuracy of the underground bit pressure and the torque and having higher control accuracy and higher pressure testing capability.
The weight-on-bit torque calibration example is as follows:
and (3) bit pressure calibration: the bit pressure is calibrated under the condition of 0-250 kN, the bit pressure grade difference of 2kN, namely 0kN, 2kN, 4kN, … … and 250kN, is loaded, and the calibration result is shown in figure 7. According to the calibration result, the linearity of the underground engineering parameter measuring instrument under the condition of axial loading is ideal, the axial force load actually born by the measuring instrument and the output signal of the measuring circuit can be considered to be linear, and the relationship between the weight on bit value WOB and the voltage output digital signal n in the calibration experiment is as follows: WOB-0.5722 (n-n)P0) Wherein n isP0142. It should be noted that: wherein n isP0The digital quantity is the digital quantity output by the measuring circuit when the bit pressure borne by the underground engineering parameter measuring instrument is 0, and is called as the bit pressure measuring zero point of the measuring instrument. When the sensor is used on site, the digital value output by the measuring circuit is converted according to the formula, and then the sensor signal can be converted into the physical weight on bit.
Calibrating the torque: the torque value is calibrated under the condition of 0-8 kN-m, the loading torque level difference is 0.2kN-m, namely 0kN-m, 0.2kN-m, 0.4kN-m, … … and 8kN-m, and the calibration result is shown in figure 8. According to the calibration result, the linearity of the underground engineering parameter measuring instrument under the condition of loading torque is still more ideal, and the torque load actually born by the measuring instrument and the measurement are carried outThe output signal of the circuit can be considered to be linear, and the relationship between the torque TOB and the output digital value n in the calibration experiment is: t is 0.0347 (n-n)T0) Wherein n isT0142. It should be noted that: wherein n isT0The digital quantity is the digital quantity output by the measuring circuit when the bearing torque of the underground engineering parameter measuring instrument is 0 and is called as the torque measuring zero point of the measuring instrument. When the torque sensor is used on site, the digital value output by the measuring circuit is converted according to the formula, and then the sensor signal can be converted into a torque physical quantity.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.
Claims (3)
1. The utility model provides a weight-on-bit and moment of torsion calibration test device which characterized in that: the lifting device comprises a base (1), long stand columns (2), short stand columns (3), a platform (4), force transmission columns (5) and cross beams (6), wherein the top surface of the base (1) is fixedly provided with four long stand columns (2), the four long stand columns (2) are distributed in a rectangular array, the cross beams (6) are fixedly arranged between the four long stand columns (2), through holes are formed in the cross beams (6), a centralizing sleeve (7) is fixedly arranged in each through hole, the force transmission columns (5) capable of sliding up and down in the centralizing sleeve (7) are further arranged in the centralizing sleeve (7), a hinge seat (8) is arranged between the two left long stand columns (2), a large rotating arm (9) is hinged to each hinge seat (8), and a chuck (10) is fixedly arranged on the base (1) and under the force transmission columns (5); still set firmly two short stand (3) on the top surface of base (1), short stand (3) are located the front side of long stand (2), just are located its top between two short stand (3) and have set firmly platform (4), set firmly fixed hinge (11) of left holder and the fixed hinge (12) of right holder on the top surface of platform (4).
2. The weight-on-bit and torque calibration test device as claimed in claim 1, wherein: the long upright post (2) and the short upright post (3) are both perpendicular to the base (1).
3. A method of calibrating weight-on-bit and torque with the test rig according to claim 1 or 2, wherein: the method comprises the steps of bit pressure calibration and torque calibration;
the weight on bit calibration comprises the following steps:
s1, firstly, installing the underground engineering parameter measuring instrument (14) between the chuck (10) and the force transmission column (5), and fixing the underground engineering parameter measuring instrument (14), wherein the large rotating arm (9) is pressed on the force transmission column (5), and the force transmission column (5) transmits force to the top of the underground engineering parameter measuring instrument (14);
s2, connecting a data acquisition board of the underground engineering parameter measuring instrument (14) and a data acquisition computer by using a data playback line, supplying power through a USB interface of the computer, and establishing communication with the computer through a serial port;
s3, measuring the strain gage bridge circuit output voltage of the underground engineering parameter measuring instrument (14) by using an 8-bit half-digital multimeter, and recording software data to test the bit pressure output zero point;
s4, hanging a weight A (13) with the weight of 1000kg or 2000kg at the right end of the large rotating arm (9), placing for 2-3 h, observing the drifting condition, measuring the strain gauge bridge output voltage of the underground engineering parameter measuring instrument (14) by using an 8-bit half-digital multimeter, recording software data to test whether the drilling pressure strain gauge bridge of the underground engineering parameter measuring instrument (14) drifts, and carrying out formal loading and unloading calibration if no obvious drift exists;
s5, hanging weights A (13) at the right end of the large rotating arm (9) step by 1, 2 and 3 until the number of the weights A is enough, measuring the drilling pressure strain gage bridge output voltage of the underground engineering parameter measuring instrument (14) by using an 8-bit half-digital multimeter each time the weights A are added, and recording software data;
s6, gradually removing weights A at the right end of the large rotating arm (9) until only 1 weight A is left, measuring the drilling pressure strain gauge bridge output voltage of the underground engineering parameter measuring instrument (14) by using an 8-bit half-digital multimeter when the weights A are removed each time, and recording software data;
s7, A, B, C three stress points are arranged on the large rotating arm (9), if the large rotating arm (9) is balanced under the action of the gravity G of the weight A (13) and the bit pressure WOB borne on the underground engineering parameter measuring instrument (14), the method comprises the following steps according to the lever static force balance principle:
G×AC＝WOB×AB
wherein AB is the distance from the stress point A to the stress point B, AC is the distance from the stress point A to the stress point C, and the weight on bit WOB applied to the underground engineering parameter measuring instrument (14) obtained by transforming the above formula is as follows:
s8, performing linear fitting on the recorded output voltage digital signal and the applied bit pressure WOB to obtain a bit pressure output zero reference value and a corresponding conversion relation;
the torque calibration comprises the following steps:
s1, clamping the underground engineering parameter measuring instrument (14) between the left clamp holder fixing hinge (11) and the right clamp holder fixing hinge (12), fixing a small rotating arm (15) at one end of the underground engineering parameter measuring instrument (14), and applying the torsional force of the small rotating arm (15) to the underground engineering parameter measuring instrument (14);
s2, connecting a data acquisition board of the underground engineering parameter measuring instrument (14) and a data acquisition computer by using a data playback line, supplying power through a USB interface of the computer, and establishing communication with the computer through a serial port;
s3, measuring the output voltage of a torque strain gauge bridge circuit of the underground engineering parameter measuring instrument (14) by using an 8-bit half-digital multimeter, and recording software data to test a torque output zero point;
s4, hanging a weight B (16) with the weight of 500kg at the free end of the small rotating arm (15), placing for 2-3 h, observing the drifting condition, measuring the output voltage of a torque strain sheet bridge circuit of the underground engineering parameter measuring instrument (14) by using an 8-bit half-digital multimeter, recording software data to test whether the torque strain sheet bridge circuit of the underground engineering parameter measuring instrument (14) drifts or not, and carrying out formal loading and unloading calibration if no obvious drift exists;
s5, hanging weights B (16) at the free end of the small rotating arm (15) step by step from 1, 2 and 3 until enough weights B are added
(16) Measuring the output voltage of a torque strain gauge bridge circuit of an underground engineering parameter measuring instrument (14) by using an 8-bit half-digital multimeter during weight addition B each time, and recording software data;
s6, gradually removing weights B at the right end of the small rotating arm (15) until only 1 weight B is left, measuring the output voltage of a torque strain gauge bridge circuit of the underground engineering parameter measuring instrument (14) by using an 8-bit half-digital multimeter when the weights B are removed each time, and recording software data;
s7, the small rotating arm (15) is stressed by D, E two points, if the small rotating arm (15) is balanced under the action of the gravity G of the weight B (16) and the torque TOB borne by the underground engineering parameter measuring instrument (14), and the included angle between DE and the horizontal position is theta, the torque TOB exerted on the underground engineering parameter measuring instrument (14) is as follows according to the lever static balance principle:
g × DE × cos θ, where DE is the distance between the D force point and the E force point;
and S8, performing linear fitting on the recorded output voltage digital signal and the applied torque to obtain a torque output zero reference value and a corresponding conversion relation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910059540.XA CN109781340B (en) | 2019-01-22 | 2019-01-22 | Bit pressure and torque calibration test device and calibration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910059540.XA CN109781340B (en) | 2019-01-22 | 2019-01-22 | Bit pressure and torque calibration test device and calibration method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109781340A CN109781340A (en) | 2019-05-21 |
| CN109781340B true CN109781340B (en) | 2020-07-28 |
Family
ID=66501149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910059540.XA Active CN109781340B (en) | 2019-01-22 | 2019-01-22 | Bit pressure and torque calibration test device and calibration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109781340B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017012B (en) * | 2021-10-29 | 2022-08-23 | 中国石油天然气集团有限公司 | Calibration device for underground bit pressure torque measurement nipple |
| CN114046930B (en) * | 2021-10-29 | 2022-11-11 | 中国石油天然气集团有限公司 | Calibration method for underground weight-on-bit torque measurement nipple |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476462A (en) * | 2008-12-22 | 2009-07-08 | 铁道第三勘察设计院集团有限公司 | Measurement while drilling for engineering geological drilling |
| CN104297049A (en) * | 2014-11-10 | 2015-01-21 | 西南石油大学 | Shale crushing experimental device capable of considering drill string dynamic vibration and experimental method |
| CN105074118A (en) * | 2013-03-29 | 2015-11-18 | 普拉德研究及开发股份有限公司 | Calibrations for a well drilling apparatus |
| CN105899757A (en) * | 2013-12-17 | 2016-08-24 | 哈利伯顿能源服务公司 | Drilling modeling calibration, including estimation of drill string stretch and twist |
| US10385675B2 (en) * | 2013-09-17 | 2019-08-20 | Halliburton Energy Services, Inc. | Estimation and calibration of downhole buckling conditions |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10612989B2 (en) * | 2017-02-17 | 2020-04-07 | Schlumberger Technology Corporation | Method and apparatus for automated drilling rig sheave friction calibration |
-
2019
- 2019-01-22 CN CN201910059540.XA patent/CN109781340B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476462A (en) * | 2008-12-22 | 2009-07-08 | 铁道第三勘察设计院集团有限公司 | Measurement while drilling for engineering geological drilling |
| CN105074118A (en) * | 2013-03-29 | 2015-11-18 | 普拉德研究及开发股份有限公司 | Calibrations for a well drilling apparatus |
| US10385675B2 (en) * | 2013-09-17 | 2019-08-20 | Halliburton Energy Services, Inc. | Estimation and calibration of downhole buckling conditions |
| CN105899757A (en) * | 2013-12-17 | 2016-08-24 | 哈利伯顿能源服务公司 | Drilling modeling calibration, including estimation of drill string stretch and twist |
| CN104297049A (en) * | 2014-11-10 | 2015-01-21 | 西南石油大学 | Shale crushing experimental device capable of considering drill string dynamic vibration and experimental method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109781340A (en) | 2019-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107882011B (en) | miniature probe with temperature compensation function | |
| CN109779616B (en) | Method for measuring underground drilling pressure and torque | |
| CN101892830B (en) | Deep ground stress measurement while drilling (MWD) system | |
| CN107727483B (en) | Penetration shearing device and method for foundation in-situ test based on fiber bragg grating | |
| CN109781340B (en) | Bit pressure and torque calibration test device and calibration method | |
| CN102562035A (en) | Underground engineering parameter measurement-while-drilling device | |
| CN202500552U (en) | Underground engineering parameter measurement-while-drilling device | |
| CN104931353B (en) | Coal column plastic zone method of testing and test device | |
| CN201695414U (en) | Spiral-plate loading test instrument | |
| CN105352635A (en) | Spatial pre-embedded type three-dimensional stress monitoring system and method for underground coal and rock mass | |
| CN106124123B (en) | A kind of torque sensor spends experimental provision surely | |
| CN101476862B (en) | Strain type internal displacement tester used for measuring internal displacement of geomechanics model | |
| CN110424362B (en) | Optical fiber type temperature self-compensating static sounding sensor | |
| CN206479268U (en) | For loess and the forced three-dimensional soil pressure sensor of weak soil | |
| CN200986477Y (en) | Down-hole sucker rod string tester for screw pump well | |
| CN1034609C (en) | Earth stress measuring method and apparatus with complete temp. compensation | |
| CN107941137A (en) | Arbitrary angle drilling deformation measurement method | |
| CN1982648A (en) | Data collecting system at bottom of unbalancing borehole | |
| CN202809591U (en) | Static cone penetration system | |
| CN113108683B (en) | Automatic imaging measurement method and device for three-dimensional characterization of large-caliber well structure | |
| CN202391405U (en) | Scaling device of MWD (measurement while drilling) apparatus for drilling pressure and torque in petroleum drilling | |
| CN212620436U (en) | Engineering supervision is with detecting instrument | |
| CN2591602Y (en) | Stepped hole type axial deformation measuring means | |
| CN111289174B (en) | Three-dimensional stress sensor calibration device and calibration method thereof | |
| CN114046930B (en) | Calibration method for underground weight-on-bit torque measurement nipple |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |