CN102704915B - A kind of checking table of directional tool and method of calibration - Google Patents
A kind of checking table of directional tool and method of calibration Download PDFInfo
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- CN102704915B CN102704915B CN201210148974.5A CN201210148974A CN102704915B CN 102704915 B CN102704915 B CN 102704915B CN 201210148974 A CN201210148974 A CN 201210148974A CN 102704915 B CN102704915 B CN 102704915B
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Abstract
The present invention relates to a kind of checking table and method of calibration of directional tool, it is characterized in that: it comprises a base support, base support arranges a test platform by three expansion screws, test platform is provided with a test benchmark and two spirit bubbles; Test benchmark is a triangular supports connected and composed by 0 ° of benchmark frame, 45 ° of benchmark framves, 90 ° of benchmark framves, and 90 ° of benchmark framves are horizontally fixed on test platform; 0 ° of benchmark frame is vertically fixed on one end of 90 ° of benchmark framves on test platform, and 45 ° of benchmark framves are connected between 0 ° of benchmark frame and 90 ° of benchmark framves; Each benchmark frame is provided with the fixture for fixing directional tool; In two spirit bubbles, a spirit bubble is arranged on the side of 0 ° of benchmark frame, and another spirit bubble is arranged on the side of 90 ° of benchmark framves.Structure of the present invention is simple, installs fast, can be steeped by inspection AQL, adjustment screw realizes quick adjustment, provide the fixed standard testing angle that precision is higher, therefore, when can be widely used in the operation of oil drilling in-site measurement, in the checking procedure of directional tool precision.
Description
Technical field
The present invention relates to a kind of checking table and method of calibration, particularly about one in oil measurement while drilling process, the checking table of the directional tool at measuring well oblique angle and method of calibration.
Background technology
In recent years, along with the development of petroleum drilling technology, measurement while drilling and down-hole guiding control technology have had very much progress, and measurement while drilling and guiding controlling functions get more and more, from strength to strength, as the measurement of hole angle, azimuth, tool-face, resistivity, gamma, rock density, pressure etc.But the accuracy of measured value is very important for geosteering and formation evaluation, therefore, evaluates, verify with bore instrument certainty of measurement for bore instrument design very necessary.Existing directional tool adopts inclinometer three-axle table to realize the verification of instrument, and this kind equipment is installed complicated, can not meet the rapid verification requirement of Oil Field.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of mounting and adjusting convenient, precision is high, can realize checking table and the method for calibration of rapid verification to the directional tool at measuring well oblique angle.
The object of the invention is to be achieved through the following technical solutions: a kind of checking table of directional tool, it is characterized in that: it comprises a base support, described base support arranges a test platform by three expansion screws, described test platform is provided with a test benchmark and two spirit bubbles; Described test benchmark is a triangular supports connected and composed by 0 ° of benchmark frame, 45 ° of benchmark framves, 90 ° of benchmark framves, and described 90 ° of benchmark framves are horizontally fixed on described test platform; Described 0 ° of benchmark frame is vertically fixed on one end of described 90 ° of benchmark framves on described test platform, and described 45 ° of benchmark framves are connected between described 0 ° of benchmark frame and 90 ° of benchmark framves; Each described benchmark frame is provided with the fixture for fixing directional tool; In two described spirit bubbles, a described spirit bubble is arranged on the side of described 0 ° of benchmark frame, and spirit bubble described in another is arranged on the side of described 90 ° of benchmark framves, and the axis of two described spirit bubbles is mutually vertical.
Three described expansion screws, wherein two are positioned on described test platform, near one end of described 0 ° of benchmark frame; Expansion screw described in another is arranged on described test platform, away from one end of described 0 ° of benchmark frame.
The method of calibration of the checking table of above-mentioned a kind of directional tool, it comprises the following steps: 1) directional tool to be verified is set up communication by cable with inclinometer testing equipment and be connected; 2) verification of 0 ° of hole angle directional tool: directional tool is installed on 0 ° of benchmark rack position, the angle, Magnetic tools face of directional tool is regulated to be 0 ° ± 3 °, 90 ° ± 3 °, 180 ° ± 3 °, 270 ° ± 3 ° four angles respectively, under these four angle conditions, the output of the hole angle of record directional tool, and contrast with the hole angle precision index of inclinometer, judge whether to meet required precision; 3) verification of 45 ° of hole angle directional tools: directional tool is installed on 45 ° of benchmark rack position, the gravity toolface angle of directional tool is regulated to be 0 ° ± 3 °, 90 ° ± 3 °, 180 ° ± 3 °, 270 ° ± 3 ° four angles respectively, under these four angle conditions, the output of the hole angle of record directional tool, and contrast with the hole angle precision index of inclinometer, judge whether to meet required precision; 4) verification of 90 ° of hole angle directional tools: directional tool is installed on 90 ° of benchmark frame 33 positions, the gravity toolface angle of directional tool is regulated to be 0 ° ± 3 °, 90 ° ± 3 °, 180 ° ± 3 °, 270 ° ± 3 ° four angles respectively, under these four angle conditions, the output of the hole angle of record directional tool, and contrast with the hole angle precision index of inclinometer, judge whether to meet required precision; 5) directional tool meeting above-mentioned 12 location point required precisions is used for the operation of oil drilling in-site measurement.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, test platform of the present invention is fixedly connected on base support by three expansion screws, test platform is provided with test benchmark and two spirit bubbles, the centre position of spirit bubble is in by three expansion screw bubbles can finely tuned in two spirit bubbles, therefore, it is possible to ensure the level of test platform.2, test benchmark of the present invention 45 ° of benchmark framves comprising the 90 ° of benchmark framves be horizontally fixed on test platform, be vertically fixed on 0 ° of benchmark frame on test platform and be connected between 0 ° of benchmark frame and 90 ° of benchmark framves, form triangular structure, three benchmark framves are provided with fixture, for fixing by the downhole drill inclinometer verified, avoid the adjustment process of directional tool three-axle table, the rapid verification achieving three Typical angles is measured.3, the present invention arranges spirit bubble on test platform, the bubble in spirit bubble is regulated to be in the centre position of spirit bubble by expansion screw, utilize the principle of this spirit bubble, accurate hole angle can be provided, and contrast with the hole angle that downhole drill inclinometer well indicates, thus play the effect of verification directional tool accuracy.4, the present invention utilizes the principle of spirit bubble, the calibration reference that can reach three hole angles is: 0 ° ± 0.01 °, 45 ° ± 0.01 °, 90 ° ± 0.01 °, and the required precision of oil directional tool hole angle is ± 0.1 degree, therefore, the present invention can provide the benchmark higher than tested accuracy of instrument 10 times.Structure of the present invention is simple, installs fast, can be steeped by inspection AQL, adjustment screw realizes quick adjustment, provide the fixed standard testing angle that precision is higher, therefore, when can be widely used in the operation of oil drilling in-site measurement, in the checking procedure of directional tool precision.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is the schematic top plan view of Fig. 1
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
As Fig. 1, with shown in 2, the present invention includes base support 1, test platform 2, test benchmark 3, fixture 4 and spirit bubble 5.
Test platform 2 of the present invention is fixedly connected on base support 1 by three expansion screws 6, can keep the level of test platform 2 by regulating three expansion screws 6.In three expansion screws 6, wherein two are fixed on one end of test platform 2, and another is fixed on the other end of test platform 2.Test benchmark 3 comprises the benchmark frame that three represent different hole angle, and the accurate frame of three foundation is respectively 0 ° of benchmark frame, 31,45 ° of benchmark framves 32 and 90 ° of benchmark framves 33.Wherein, 90 ° of benchmark framves 33 are horizontally fixed on test platform 2 by some screws, are horizontal direction angle reference; 0 ° of benchmark frame 31 is vertically fixed on test platform 2,90 ° of benchmark framves 33 near one end of two expansion screws 6, be vertical direction angle reference; 45 ° of benchmark framves 32 are 45° angle with test platform 2, are connected by screw between 0 ° of benchmark frame 31 and 90 ° of benchmark framves 33, form the test benchmark of triangular structure.On 0 ° of benchmark frame, 31,45 ° of benchmark framves 32 and 90 ° of benchmark framves 33, be provided with fixture 4, for fixing by the downhole drill inclinometer verified.
Spirit bubble 5 of the present invention has two, one of them is fixed on test platform 2, the side of 0 ° of benchmark frame 31, between two expansion screws 6; Another is fixed on test platform 2, the side of 90 ° of benchmark framves 33.The axis of two spirit bubbles 5 is mutually vertical.Two expansion screws 6 of test platform 2 one end can be used for the spirit bubble 5 of fine setting 0 ° of benchmark frame 31 side, make bubble stabilizes in the centre position of spirit bubble 5; An expansion screw 6 of test platform 2 other end can be used for the spirit bubble 5 of fine setting 90 ° of benchmark frame 33 sides, makes bubble stabilizes in the spirit bubble 5 of 90 ° of benchmark frame 33 sides in centre position.Three hole angle calibration references can be realized: 0 ° ± 0.01 °, 45 ° ± 0.01 °, 90 ° ± 0.01 ° by this operation.
The present invention utilizes the principle of spirit bubble, can provide accurate hole angle benchmark, and contrasts with the hole angle that directional tool indicates, thus plays the effect of verification directional tool accuracy.Method of calibration of the present invention comprises the following steps.
1) directional tool to be verified is set up communication by private cable with inclinometer testing equipment to be connected;
2) verification of 0 ° of hole angle directional tool: directional tool is installed on 0 ° of benchmark frame 31 position, the angle, Magnetic tools face of directional tool is regulated to be 0 ° ± 3 °, 90 ° ± 3 °, 180 ° ± 3 °, 270 ° ± 3 ° four angles respectively, under these four angle conditions, the output of the hole angle of record directional tool, and contrast with the hole angle precision index of inclinometer, judge whether to meet required precision;
3) verification of 45 ° of hole angle directional tools: directional tool is installed on 45 ° of benchmark frame 32 positions, the gravity toolface angle of directional tool is regulated to be 0 ° ± 3 °, 90 ° ± 3 °, 180 ° ± 3 °, 270 ° ± 3 ° four angles respectively, under these four angle conditions, the output of the hole angle of record directional tool, and contrast with the hole angle precision index of inclinometer, judge whether to meet required precision;
4) verification of 90 ° of hole angle directional tools: directional tool is installed on 90 ° of benchmark frame 33 positions, the gravity toolface angle of directional tool is regulated to be 0 ° ± 3 °, 90 ° ± 3 °, 180 ° ± 3 °, 270 ° ± 3 ° four angles respectively, under these four angle conditions, the output of the hole angle of record directional tool, and contrast with the hole angle precision index of inclinometer, judge whether to meet required precision;
5) directional tool meeting above-mentioned 12 location point required precisions may be used for the operation of oil drilling in-site measurement.
The various embodiments described above are only for illustration of the present invention, and wherein the structure, connected mode etc. of each parts all can change to some extent, and every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (1)
1. a method of calibration for the checking table of directional tool, this checking table comprises a base support, and described base support arranges a test platform by three expansion screws, described test platform is provided with a test benchmark and two spirit bubbles; Described test benchmark is a triangular supports connected and composed by 0 ° of benchmark frame, 45 ° of benchmark framves, 90 ° of benchmark framves, and described 90 ° of benchmark framves are horizontally fixed on described test platform; Described 0 ° of benchmark frame is vertically fixed on one end of described 90 ° of benchmark framves on described test platform, and described 45 ° of benchmark framves are connected between described 0 ° of benchmark frame and 90 ° of benchmark framves; Each described benchmark frame is provided with the fixture for fixing directional tool; Three described expansion screws, wherein two are positioned on described test platform, near one end of described 0 ° of benchmark frame; Expansion screw described in another is arranged on described test platform, away from one end of described 0 ° of benchmark frame; In two described spirit bubbles, spirit bubble described in one of them is fixed on the described test platform between the side of described 0 ° of benchmark frame, two described expansion screws, spirit bubble described in another is fixed on the described test platform of described 90 ° of benchmark frame sides, the axis of two described spirit bubbles is mutually vertical, and this method of calibration comprises the following steps:
1) directional tool to be verified is set up communication by cable with inclinometer testing equipment to be connected;
2) verification of 0 ° of hole angle directional tool: directional tool is installed on 0 ° of benchmark rack position, the angle, Magnetic tools face of directional tool is regulated to be 0 ° ± 3 °, 90 ° ± 3 °, 180 ° ± 3 °, 270 ° ± 3 ° four angles respectively, under these four angle conditions, the output of the hole angle of record directional tool, and contrast with the hole angle precision index of inclinometer, judge whether to meet required precision;
3) verification of 45 ° of hole angle directional tools: directional tool is installed on 45 ° of benchmark rack position, the gravity toolface angle of directional tool is regulated to be 0 ° ± 3 °, 90 ° ± 3 °, 180 ° ± 3 °, 270 ° ± 3 ° four angles respectively, under these four angle conditions, the output of the hole angle of record directional tool, and contrast with the hole angle precision index of inclinometer, judge whether to meet required precision;
4) verification of 90 ° of hole angle directional tools: directional tool is installed on 90 ° of benchmark rack position, the gravity toolface angle of directional tool is regulated to be 0 ° ± 3 °, 90 ° ± 3 °, 180 ° ± 3 °, 270 ° ± 3 ° four angles respectively, under these four angle conditions, the output of the hole angle of record directional tool, and contrast with the hole angle precision index of inclinometer, judge whether to meet required precision;
5) directional tool meeting above-mentioned 12 location point required precisions is used for the operation of oil drilling in-site measurement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210148974.5A CN102704915B (en) | 2012-05-14 | 2012-05-14 | A kind of checking table of directional tool and method of calibration |
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| CN201210148974.5A CN102704915B (en) | 2012-05-14 | 2012-05-14 | A kind of checking table of directional tool and method of calibration |
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| CN102704915B true CN102704915B (en) | 2015-11-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103759707B (en) * | 2013-12-30 | 2015-09-16 | 北京中煤矿山工程有限公司 | Deviational survey platform |
| CN105134172B (en) * | 2015-07-31 | 2018-07-06 | 中石化石油工程技术服务有限公司 | A kind of three axis wireless drilling inclinometers calibration frames |
| CN106640046B (en) * | 2015-10-30 | 2023-09-08 | 中石化石油工程技术服务有限公司 | Rotary tool face angle testing device |
| CN106441365B (en) * | 2016-10-13 | 2019-05-21 | 淮南矿业(集团)有限责任公司 | The calibration method of calibrator of inclinometer |
| CN107313766B (en) * | 2017-05-31 | 2021-04-30 | 中国石油天然气股份有限公司 | Attitude data correction method and device |
| CN108286426B (en) * | 2017-12-18 | 2023-10-27 | 中国矿业大学 | Horizontal inclined hole inclinometry platform |
| CN111780783B (en) * | 2020-07-02 | 2022-07-01 | 山西省河道与水库技术中心 | Multi-section flexible joint chain type bidirectional inclinometer calibration device and method |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: Goaltech Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation Co-patentee before: Goaltech Co., Ltd. |
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Effective date of registration: 20191217 Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC research institute limited liability company Patentee before: China Offshore Oil Group Co., Ltd. Co-patentee before: Goaltech Co., Ltd. |