CN102607377A - Tool and method for measuring angular difference of tool face of oil field drilling instrument - Google Patents

Tool and method for measuring angular difference of tool face of oil field drilling instrument Download PDF

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Publication number
CN102607377A
CN102607377A CN2012100362643A CN201210036264A CN102607377A CN 102607377 A CN102607377 A CN 102607377A CN 2012100362643 A CN2012100362643 A CN 2012100362643A CN 201210036264 A CN201210036264 A CN 201210036264A CN 102607377 A CN102607377 A CN 102607377A
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China
Prior art keywords
scale
shape
instrument
tool
tubulose
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Granted
Application number
CN2012100362643A
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Chinese (zh)
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CN102607377B (en
Inventor
陈红新
石岩峰
蒋世全
王清松
李峰飞
石峻峰
常永旺
王聪
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China National Offshore Oil Corp CNOOC
CNOOC Research Institute Co Ltd
Original Assignee
GOALTECH CO Ltd
China National Offshore Oil Corp CNOOC
CNOOC Research Institute Co Ltd
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Priority to CN201210036264.3A priority Critical patent/CN102607377B/en
Publication of CN102607377A publication Critical patent/CN102607377A/en
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Publication of CN102607377B publication Critical patent/CN102607377B/en
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Abstract

The invention relates to a tool and a method for measuring an angular difference of a tool face of an oil field drilling instrument. The tool is characterized by comprising a platy aiming tool, a tubular aiming tool and a sighting telescope, wherein the platy aiming tool comprises a scale panel; an M-shaped open slot is formed inward along the middle part of one side of the scale panel; a V-shaped scale is arranged at the other side of the scale panel; a positioning rod is arranged at the symmetry center of the top of the V-shaped scale of the platy aiming tool; one end of the V-shaped scale of the platy aiming tool is provided with a hinge and the other side of the V-shaped scale is provided with calipers; the tubular aiming tool comprises a tubular scale; one end of the tubular scale is provided with a V-shaped scale; a positioning rod is fixed at the symmetry center of the top of the V-shaped scale of the tubular aiming tool; one end of the V-shaped scale of the tubular aiming tool is provided with a hinge and the other side of the V-shaped scale is provided with calipers; the sighting telescope comprises a telescope frame; the telescope frame comprises two lateral plates and a middle cross board; a rotating shaft is arranged on the two lateral plates and in front of the middle cross board; the rotating shaft is rotationally connected with a mirror plane; and a V-shaped notch is arranged upward at the middle position of the bottom of the cross board of the telescope frame.

Description

A kind of oil drilling instrument tool face angular difference survey instrument and measuring method thereof
Technical field
The present invention relates to a kind of oil drilling instrument, particularly about a kind of oil drilling instrument tool face angular difference survey instrument and measuring method thereof.
Background technology
In the drilling measuring system, in order just to know the tool-face angular difference of oil drilling instrument according to predetermined hole deviation and orientation well-digging.The drilling well screw rod has curved point, i.e. flash tool-face has an angle between it and the drill collar markings; Between drill collar markings and the inserting tube tool-face certain angle is arranged also, just can calculate the angular difference of flash tool-face and inserting tube tool-face through these two angles.When measuring the angle of screw rod and drill collar markings, need combination to use one to overlap measurer, drill collar markings and screw rod markings are projected in the plane just can measure.Tool-face angular difference with this mensuration obtains is consistent with real angular difference, so just can obtain desirable well track.The multiple measurement instrument of using in the prior art is level crossing upslide movie queen, the projection that is difficult to each survey instrument of identification whether point-blank, therefore, measuring accuracy is poor.
Summary of the invention
To the problems referred to above, it is high to the purpose of this invention is to provide a kind of measuring accuracy, and convenient measurement can access the oil drilling instrument tool face angular difference survey instrument and the measuring method thereof of ideal well eye track.
For realizing above-mentioned purpose, the present invention takes following technical scheme: a kind of oil drilling instrument tool face angular difference survey instrument is characterized in that: it comprises tabular aiming instrument, tubulose aiming instrument and gun sight; Said tabular aiming instrument comprises that a scale is dull and stereotyped; Said middle part along the dull and stereotyped side of scale inwardly sets out one " M " shape open slot; The dull and stereotyped opposite side of said scale is offered one " V " shape gap; And one " V " shape scale being set in said " V " shape gap position, the symmetrical center line of said " M " shape open slot overlaps with the symmetrical center line of said " V " shape scale; Said " V " shape scale comprises a top and both ends; The symcenter place, top of said " V " shape scale is provided with a positioning rod; The pointed nose of said backstay is stretched in the opening of said " V " shape scale; Both ends one end of said " V " shape scale is provided with a hinge, and the other end is provided with clamp; Said tubulose aiming instrument comprises a tubulose scale; A wherein end of said tubulose scale is provided with one " V " shape scale; Said " V " shape scale comprises a top and both ends, and the symcenter place, top of said " V " shape scale is a positioning rod fixedly, and the pointed nose of said backstay is stretched in the opening of said " V " shape scale; Both ends one end of said " V " shape scale is provided with a hinge, and the other end is provided with clamp; Said tubulose scale, " V " shape scale and backstay three's symmetrical center line overlaps; Said gun sight comprises picture frame, and said picture frame comprises two side plates and middle transverse slat, and on said two side plates, the place ahead of middle transverse slat is provided with a rotating shaft, a minute surface is rotationally connected in the said rotating shaft; One " V " v notch v is upwards offered in the centre position of said transverse slat bottom, and the symmetrical center line of said " V " v notch v and the symmetrical center line of said minute surface are on same neutral surface.
The top of said " V " shape scale in said tabular aiming instrument and the said tubulose aiming instrument all is the circular arc transition.
The measuring method of above-mentioned a kind of oil drilling instrument tool face angular difference survey instrument; It may further comprise the steps: 1) pointed nose with backstay in the tabular aiming instrument is inserted in the groove of drill collar markings; Hinge and clamp with in the tabular aiming instrument are encircled drill collar; Tabular aiming instrument is near the lower end of drill collar, and vertical with drill collar; 2) pointed nose with backstay in the tubulose aiming instrument is inserted in the groove of drill collar markings, encircles drill collar with hinge and clamp in the tubulose aiming instrument, and tubulose aims at the upper end of instrument near drill collar, and vertical with drill collar; 3) with gun sight be installed on the screw rod, the below of tabular aiming instrument, the vertical side of two side plates of picture frame contacts with screw rod all the time, the rotation minute surface appears on the minute surface up to the reflection of tubulose scale and " M " shape open slot; Move gun sight along the screw rod circumferencial direction, overlap up to the symmetrical center line of tubulose scale and the reflection of symmetrical center line on gun sight of " M " shape open slot, and overlap with the symmetrical center line of minute surface; 4) along symmetrical center line standardized markings on screw rod of " V " v notch v of gun sight picture frame; Measure the angle of original representative flash tool-face graticule on these markings and the screw rod; Be exactly the angular difference of flash tool-face and drill collar markings, and the angular difference of drill collar markings and inserting tube tool-face is certain, therefore; Through calculating the angular difference of inserting tube tool-face and flash tool-face, measure and accomplish.
The present invention is owing to take above technical scheme, and it has the following advantages: 1, the present invention measures the differential seat angle of curved point (being the flash tool-face) of screw rod and drill collar markings through tabular aiming instrument, tubulose aiming instrument and gun sight acting in conjunction; Wherein, " V " shape opening of tabular aiming instrument is bigger, simultaneously the angle position of opening also flatten accordingly slow, made things convenient for and drill collar between binding; On tabular aiming instrument, offer " M " shape open slot; The tubulose scale of tubulose aiming instrument is projected in " M " shape open slot fully; Align with the symmetrical center line of " M " shape open slot, so just can find the position of tubulose aiming instrument and tabular aiming instrument accurately.2, the tabular tool master of the present invention, tubulose aiming instrument all become horizontal positioned with the gun sight three; Circumferencial direction through at screw rod moves horizontally gun sight; Adjust three's symmetrical center line, three's symmetrical center line is projected on the same line, promptly be regarded as three's position centering; On screw rod draw mark line through " V " v notch v on the gun sight this moment; Just can well measure the angular difference of flash tool-face and drill collar markings according to it, and the angular difference of drill collar markings and inserting tube tool-face is certain, so through calculating the angular difference that just can obtain inserting tube tool-face and flash tool-face; Make the oil drilling instrument obtain desirable well track according to predetermined hole deviation and orientation drilling well.The present invention by three independently instrument utilization reflection concern that cooperation accomplishes measurement, can obtain oil drilling instrument tool face angular difference comparatively accurately, easy to operate, therefore, can be widely used in the measuring process of oil drilling instrument tool face angular difference.
Description of drawings
Fig. 1 is the structural representation of survey instrument of the present invention
Fig. 2 is the structural representation of the tabular aiming instrument of the present invention
Fig. 3 is the structural representation of tubulose aiming instrument of the present invention
Fig. 4 is the structural representation of gun sight of the present invention
Fig. 5 is the schematic top plan view of Fig. 4
Fig. 6 is the measurement reflection synoptic diagram of survey instrument of the present invention
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is carried out detailed description.
As shown in Figure 1, the present invention includes tabular aiming instrument 1, tubulose aiming instrument 2 and gun sight 3.Through the acting in conjunction of tabular aiming instrument 1, tubulose aiming instrument 2 and gun sight 3, measure the curved point of screw rod of screw rod 4, i.e. the differential seat angle of flash tool-face graticule 41 and the drill collar markings 51 of drill collar 5.
As shown in Figure 2; Tabular aiming instrument 1 of the present invention comprises a scale dull and stereotyped 11; Middle part along a side of scale dull and stereotyped 11 inwardly sets out one " M " shape open slot 12; Therefore, on the symmetrical center line of " M " shape open slot 12, has a tip 13 (i.e. summit in the middle of " M " letter) naturally.Corresponding with " M " shape open slot 12; Opposite side at scale dull and stereotyped 11 is offered one " V " shape gap; And one " V " shape scale 14 being set in this " V " shape gap stationkeeping, the symmetrical center line of " M " shape open slot 12 overlaps with the symmetrical center line of " V " shape scale 14.The opening of " V " shape scale 14 is outside, and " V " shape scale 14 comprises a top and both ends, and the top of " V " shape scale 14 is the circular arc transition.On the top symmetrical center line of " V " shape scale 14, fixedly install a positioning rod 15, the pointed nose of backstay 15 is stretched in the opening of " V " shape scale 14, and the pointed nose of backstay 15 is inserted in the groove of drill collar markings 51 during measurement, plays positioning action.Both ends one end of " V " shape scale 14 is provided with a hinge 16, and the other end is provided with clamp 17, is used to encircle at drill collar 5.
As shown in Figure 3; Tubulose aiming instrument 2 of the present invention comprises a tubulose scale 21, and a wherein end of tubulose scale 21 is provided with one " V " shape scale 22, and the opening of " V " shape scale 22 is outside; " V " shape scale 22 comprises a top and both ends, and the top of " V " shape scale 22 is the circular arc transition.Fixing a positioning rod 23 on the top symmetrical center line of " V " shape scale 22, the pointed nose of backstay 23 is stretched in the opening of " V " shape scale 22, and the pointed nose of backstay 23 is inserted in the groove of drill collar markings 51 during measurement, plays positioning action.Both ends one end of " V " shape scale 22 is provided with a hinge 24, and the other end is provided with clamp 25, is used to encircle at drill collar 5.Tubulose scale 21, " V " shape scale 22 and backstay 23 threes' symmetrical center line overlaps.
Like Fig. 1, Fig. 4, shown in Figure 5, gun sight 3 of the present invention comprises picture frame 31, minute surface 32 and rotating shaft 33.Picture frame 31 is " H " type, comprises two side plates 34 and middle transverse slat 35, and rotating shaft 33 is arranged on two side plates 34, the place ahead of middle transverse slat 35, and minute surface 32 connects rotating shaft 33 through web member, and minute surface 32 can be around rotating shaft 33 rotations.One " V " v notch v 36 is upwards offered in the centre position, transverse slat 35 bottom of picture frame 31, and the symmetrical center line of " V " v notch v 36 and the symmetrical center line of minute surface 32 are on same neutral surface.When measuring; The vertical side of two side plates 34 of picture frame 31 contacts with screw rod 4 all the time; Rotation minute surface 32 appears on the minute surface 32 up to the reflection of tubulose scale 21 and " M " shape open slot 12; At this moment move gun sight 3 along screw rod 4 circumferencial directions, overlap up to the symmetrical center line of tubulose scale 21 and the reflection of symmetrical center line on gun sight 3 of " M " shape open slot 12, and overlap with the symmetrical center line of minute surface 32.
Like Fig. 1, shown in Figure 6, the measuring method of survey instrument of the present invention may further comprise the steps:
1) pointed nose with the backstay 15 of tabular aiming instrument 1 is inserted in the groove of drill collar markings 51; With hinge in the tabular aiming instrument 1 16 and clamp 17 it is encircled on drill collar 5; When installing; Tabular aiming instrument 1 is as much as possible near the lower end of drill collar 5, and makes tabular aiming instrument 1 vertical with drill collar 5.
2) pointed nose that tubulose is aimed at the backstay 23 of instrument 2 also is inserted in the groove of drill collar markings 51; Hinge 24 with in the tubulose aiming instrument 2 is encircled it on drill collar 5 with clamp 25; Tubulose aiming instrument 2 is as much as possible near the upper end of drill collar 5 when installing, and makes tubulose aiming instrument 2 vertical with drill collar 5.
3) gun sight 3 is installed on the screw rod 4; Be in the bottom among the three; The vertical side of two side plates 34 of picture frame 31 contacts with screw rod 4 all the time, and rotation minute surface 32 appears on the minute surface 32 up to the reflection of tubulose scale 21 and " M " shape open slot 12, at this moment moves gun sight 3 along screw rod 4 circumferencial directions; Overlap up to the symmetrical center line of tubulose scale 21 and the reflection of symmetrical center line on gun sight 3 of " M " shape open slot 12, and overlap with the symmetrical center line of minute surface 32.
4) along symmetrical center line standardized markings 6 on screw rod 4 of " V " v notch vs 36 of gun sight 3 picture frames 31; Measure the angle of original representative flash tool-face graticule 41 on these markings 6 and the screw rod 4; It is exactly the angular difference of flash tool-face and drill collar markings; And the angular difference of drill collar markings and inserting tube tool-face is certain; Therefore, through calculating the angular difference that just can know inserting tube tool-face and flash tool-face, measure and accomplish.
Tabular aiming instrument 1 of the present invention adopts " V " shape scale 14, and opening is bigger, and the angle position of while opening also latens slow accordingly, is convenient to and drill collar 5 bindings; Simultaneously; Can strengthen the opening of " M " shape open slot 13; The tubulose scale 21 of tubulose aiming instrument 2 is projected in the opened gap of " M " shape open slot 13 fully; So just can adjust the reflection of tubulose aiming instrument 2 and tabular aiming instrument 1, make their symmetrical center line reflection alignment through move horizontally gun sight 3 at screw rod 4 circumferencial directions.So just can be according to angular difference; Well measure the angular difference of flash tool-face graticule 41 and drill collar markings 51; Then obtain the angular difference of inserting tube tool-face and flash tool-face, make the oil drilling instrument, obtain desirable well track according to predetermined hole deviation and orientation drilling well.
Above-mentioned each embodiment only is used to explain the present invention; Wherein the structure of each parts, connection and arrangement mode etc. all can change to some extent; Every equivalents of on the basis of technical scheme of the present invention, carrying out and improvement all should not got rid of outside protection scope of the present invention.

Claims (3)

1. oil drilling instrument tool face angular difference survey instrument is characterized in that: it comprises tabular aiming instrument, tubulose aiming instrument and gun sight;
Said tabular aiming instrument comprises that a scale is dull and stereotyped; Said middle part along the dull and stereotyped side of scale inwardly sets out one " M " shape open slot; The dull and stereotyped opposite side of said scale is offered one " V " shape gap; And one " V " shape scale being set in said " V " shape gap position, the symmetrical center line of said " M " shape open slot overlaps with the symmetrical center line of said " V " shape scale; Said " V " shape scale comprises a top and both ends; The symcenter place, top of said " V " shape scale is provided with a positioning rod; The pointed nose of said backstay is stretched in the opening of said " V " shape scale; Both ends one end of said " V " shape scale is provided with a hinge, and the other end is provided with clamp;
Said tubulose aiming instrument comprises a tubulose scale; A wherein end of said tubulose scale is provided with one " V " shape scale; Said " V " shape scale comprises a top and both ends, and the symcenter place, top of said " V " shape scale is a positioning rod fixedly, and the pointed nose of said backstay is stretched in the opening of said " V " shape scale; Both ends one end of said " V " shape scale is provided with a hinge, and the other end is provided with clamp; Said tubulose scale, " V " shape scale and backstay three's symmetrical center line overlaps;
Said gun sight comprises picture frame, and said picture frame comprises two side plates and middle transverse slat, and on said two side plates, the place ahead of middle transverse slat is provided with a rotating shaft, a minute surface is rotationally connected in the said rotating shaft; One " V " v notch v is upwards offered in the centre position of said transverse slat bottom, and the symmetrical center line of said " V " v notch v and the symmetrical center line of said minute surface are on same neutral surface.
2. a kind of oil drilling instrument tool face angular difference survey instrument as claimed in claim 1 is characterized in that: the top of said " V " shape scale in said tabular aiming instrument and the said tubulose aiming instrument all is the circular arc transition.
3. the measuring method of an oil drilling instrument tool face angular difference survey instrument according to claim 1 or claim 2, it may further comprise the steps:
1) pointed nose with backstay in the tabular aiming instrument is inserted in the groove of drill collar markings, encircles drill collar with hinge and clamp in the tabular aiming instrument, and tabular aiming instrument is near the lower end of drill collar, and vertical with drill collar;
2) pointed nose with backstay in the tubulose aiming instrument is inserted in the groove of drill collar markings, encircles drill collar with hinge and clamp in the tubulose aiming instrument, and tubulose aims at the upper end of instrument near drill collar, and vertical with drill collar;
3) with gun sight be installed on the screw rod, the below of tabular aiming instrument, the vertical side of two side plates of picture frame contacts with screw rod all the time, the rotation minute surface appears on the minute surface up to the reflection of tubulose scale and " M " shape open slot; Move gun sight along the screw rod circumferencial direction, overlap up to the symmetrical center line of tubulose scale and the reflection of symmetrical center line on gun sight of " M " shape open slot, and overlap with the symmetrical center line of minute surface;
4) along symmetrical center line standardized markings on screw rod of " V " v notch v of gun sight picture frame; Measure the angle of original representative flash tool-face graticule on these markings and the screw rod; Be exactly the angular difference of flash tool-face and drill collar markings, and the angular difference of drill collar markings and inserting tube tool-face is certain, therefore; Through calculating the angular difference of inserting tube tool-face and flash tool-face, measure and accomplish.
CN201210036264.3A 2012-02-17 2012-02-17 Tool and method for measuring angular difference of tool face of oil field drilling instrument Active CN102607377B (en)

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CN102607377B CN102607377B (en) 2014-06-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106567705A (en) * 2015-10-08 2017-04-19 中国石油化工股份有限公司 Method for controlling borehole track by tool face azimuth
CN110345847A (en) * 2018-12-24 2019-10-18 西安航天动力机械有限公司 Auxiliary mould for cylinder exterior part external form accuracy detection

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000008815A (en) * 1998-06-16 2000-01-11 Hyundai Motor Co Ltd Device and method for measuring phase angle error of cam shaft for internal combustion engine
CN2849164Y (en) * 2005-11-14 2006-12-20 郑州士奇测控技术有限公司 Near drill during drilling measuring device of well deviation angle
CN201884022U (en) * 2010-12-06 2011-06-29 中国石油集团西部钻探工程有限公司 Portable angle difference measure gauge
CN202064934U (en) * 2011-06-03 2011-12-07 新疆贝肯能源工程股份有限公司 MWD (Measurement While Drilling) external angular difference drill protractor
CN202126238U (en) * 2011-06-23 2012-01-25 江阴兴鼎石油管具有限公司 Inspection device for axiality and angular deviation of drill rod
CN202501822U (en) * 2012-02-17 2012-10-24 中国海洋石油总公司 Tool for measuring angular difference between tool surfaces of oil filed drilling apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000008815A (en) * 1998-06-16 2000-01-11 Hyundai Motor Co Ltd Device and method for measuring phase angle error of cam shaft for internal combustion engine
CN2849164Y (en) * 2005-11-14 2006-12-20 郑州士奇测控技术有限公司 Near drill during drilling measuring device of well deviation angle
CN201884022U (en) * 2010-12-06 2011-06-29 中国石油集团西部钻探工程有限公司 Portable angle difference measure gauge
CN202064934U (en) * 2011-06-03 2011-12-07 新疆贝肯能源工程股份有限公司 MWD (Measurement While Drilling) external angular difference drill protractor
CN202126238U (en) * 2011-06-23 2012-01-25 江阴兴鼎石油管具有限公司 Inspection device for axiality and angular deviation of drill rod
CN202501822U (en) * 2012-02-17 2012-10-24 中国海洋石油总公司 Tool for measuring angular difference between tool surfaces of oil filed drilling apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106567705A (en) * 2015-10-08 2017-04-19 中国石油化工股份有限公司 Method for controlling borehole track by tool face azimuth
CN110345847A (en) * 2018-12-24 2019-10-18 西安航天动力机械有限公司 Auxiliary mould for cylinder exterior part external form accuracy detection
CN110345847B (en) * 2018-12-24 2021-03-26 西安航天动力机械有限公司 A auxiliary fixtures that is used for barrel outside part appearance precision to detect

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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.

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.

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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No.

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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.

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