CN108612522B - Casing pipe technical condition detection device and method - Google Patents
Casing pipe technical condition detection device and method Download PDFInfo
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- CN108612522B CN108612522B CN201810287261.4A CN201810287261A CN108612522B CN 108612522 B CN108612522 B CN 108612522B CN 201810287261 A CN201810287261 A CN 201810287261A CN 108612522 B CN108612522 B CN 108612522B
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- 238000001514 detection method Methods 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 20
- 210000002445 nipple Anatomy 0.000 claims description 29
- 238000005259 measurement Methods 0.000 claims description 10
- 238000012360 testing method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- E21B47/007—Measuring stresses in a pipe string or casing
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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
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
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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
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Electromagnetism (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The embodiment of the application discloses a casing technical condition detection device and a casing technical condition detection method, wherein the device comprises: the device comprises a cable head, a magnetic positioning communication short section, an upper centralizer, an upper arm short section, a lower centralizer and a temperature pressure short section; a plurality of support arms are arranged on the upper support arm short section and the lower support arm short section; the tail end of the support arm is connected with a strain detection sliding block; the plurality of support arms are uniformly distributed outside the upper support arm short section or the lower support arm short section and are distributed in an annular shape; the support arms on the upper support arm short section and the support arms on the lower support arm short section are not distributed and overlapped; the magnetic positioning communication short section is used for data communication and collecting magnetic positioning signals. The device and the method for detecting the technical condition of the casing can improve the reliability of the detection result of the technical condition of the casing.
Description
Technical Field
The application relates to the technical field of petroleum logging, in particular to a casing pipe technical condition detection device and method.
Background
Most of the oil and gas wells in the early oil fields are fixed by casing pipes, and the technical conditions of the casing pipes of the oil and gas wells are possibly deteriorated due to factors such as earth crust movement, seismic activity, corrosion of underground media, heterogeneity of stratums, dip angles, rock properties and the like. Engineering factors such as water injection development, oil well sand production, oil layer transformation, well cementation and completion quality and the like are also main reasons for inducing geological factors to generate destructive ground stress.
In order to ensure the safety of oil and gas exploitation, the casing needs to be detected to determine whether the use state of the casing is safe.
The existing casing detection technology is mainly realized by adopting a multi-arm caliper logging method, specifically, a casing detection device generally comprises a cylinder, annular measuring arms are distributed on the cylinder, before detection, the measuring arms are tightly attached to the measuring cylinder, during measurement, the measuring arms are opened to measure the inner diameter of the casing, and because the inner diameter of the casing is inevitably changed when the inner wall of the casing is damaged, whether the casing is damaged or not can be determined by the measured inner diameter of the casing. Meanwhile, a three-dimensional shaft casing image can be described by combining electromagnetic thickness measurement.
The inventor finds that at least the following problems exist in the prior art: in the mechanical structure adopted in the multi-arm well diameter logging method, the measuring arms are tightly attached to the cylinder to form a ring, so that the number of the measuring arms is limited, and if a hole is just positioned between the two opened measuring arms, the hole cannot be detected, and therefore, the detection result of the existing casing pipe technical condition detection method is low in reliability.
Disclosure of Invention
The embodiment of the application aims to provide a casing technical condition detection device and a casing technical condition detection method so as to improve the reliability of a casing technical condition detection result.
In order to solve the above technical problem, an embodiment of the present application provides a casing technical status detection apparatus and method, which are implemented as follows:
a casing technical condition detection apparatus comprising: the device comprises a cable head, a magnetic positioning communication short section, an upper centralizer, an upper arm short section, a lower centralizer and a temperature pressure short section;
a plurality of support arms are arranged on the upper support arm short section and the lower support arm short section;
the tail end of the support arm is connected with a strain detection sliding block;
the plurality of support arms are uniformly distributed outside the upper support arm short section or the lower support arm short section and are distributed in an annular shape;
the support arms on the upper support arm short section and the support arms on the lower support arm short section are not distributed and overlapped;
the magnetic positioning communication short section is used for data communication and collecting magnetic positioning signals.
In the preferred scheme, the outside of the cable head is connected with the magnetic positioning communication short joint; the interior of the cable head is connected with a cable.
Preferably, the strain gauge is connected with a constant current circuit.
In a preferred scheme, the temperature pressure nipple is used for measuring the pressure and/or temperature in the casing; then it is determined that,
and the magnetic positioning communication short joint is also used for sending pressure data and/or temperature data obtained by measuring the temperature and pressure short joint to a ground control system.
In a preferable scheme, the device further comprises one or more auxiliary support arm short sections, and a plurality of support arms are arranged on the auxiliary support arm short sections.
In the preferred scheme, each support arm of the plurality of support arms is provided with a strain detection sliding block; a plurality of support arms evenly distributed on supplementary support arm nipple joint in the outside of supplementary support arm nipple joint, and distribute for the annular.
A casing technical condition detection method, comprising:
unfolding a support arm in the casing technical condition detection device, moving the casing technical condition detection device in the casing, and obtaining the position of the casing technical condition detection device and the measurement result of each strain detection slide block;
determining the inner diameter of each position in the sleeve according to the position of the sleeve technical condition detection device and the measurement result of the strain detection slide block;
and determining the technical condition of the casing according to the inner diameter of each position in the casing.
In a preferred embodiment, the technical conditions include: hole, crack, blockage or coupling location
In a preferred embodiment, the method further comprises: and generating a three-dimensional image in the sleeve by utilizing the inner diameters of all the positions in the sleeve.
In a preferred embodiment, the method further comprises: pressures and/or temperatures at various locations within the casing are obtained.
It is visible by the technical scheme that above this application embodiment provided, the sleeve pipe technical situation detection device that this application embodiment provided can guarantee that the hole between the strain detection slider that two adjacent support arms on a support arm nipple correspond can be detected by the strain detection slider on another support arm nipple after the support arm that is located on two support arm nipples opens through setting up 2 or more support arm nipples, has improved the reliability of testing result. On the other hand, the well diameter and the stress field distribution of the casing can be measured simultaneously in one-time well descending, so that the three-dimensional description of the technical condition of the casing is realized, and the damage conditions of holes, damages, cracks and the like can be accurately judged due to the high sensitivity of the strain gauge.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort.
FIG. 1 is a schematic cross-sectional view of one embodiment of the casing condition detection apparatus of the present application;
FIG. 2 is a top view of one embodiment of the present casing condition detection apparatus;
fig. 3 is a flow chart of one embodiment of a casing condition detection method of the present application.
Detailed Description
The embodiment of the application provides a casing pipe condition detection device and method.
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a schematic sectional view of an embodiment of the casing condition detection device of the present application. Referring to fig. 1, the casing technical condition detection device may include, from top to bottom: the cable head 1, magnetism location communication nipple joint 2, go up centralizer 3, go up arm nipple joint 4, lower arm nipple joint 7, lower centralizer 8 and temperature pressure nipple joint 9.
And a plurality of support arms 5 can be arranged on the upper support arm short section 4 and the lower support arm short section 7. The end of the arm 5 may be connected to a strain detecting slider 6. The strain sensing slide 6 may be used to measure strain forces. And the plurality of support arms 5 are uniformly distributed on the outer part of the upper support arm short section 4 or the lower support arm short section 7 and are distributed in an annular shape.
The outside of the cable head 1 can be connected with the magnetic positioning communication short joint 2. The interior of the cable head 1 can be connected to a cable. The cable head 1 may be used to fix the cable and may also be used to seal the core of the cable.
The magnetic positioning communication short section 2 can be used for data communication and collecting magnetic positioning signals. Specifically, the magnetic positioning communication short section 2 can receive signals sent by a ground control system, collect magnetic positioning signals and transmit collected strain force data to the ground control system.
The upper centralizer 3 and the lower centralizer 8 can be used for centralizing the upper support arm short section 4 and the lower support arm short section 7 respectively. The upper support arm short section 4 and the lower support arm short section 7 are positioned at the central position in the casing pipe through the upper centralizer 3 and the lower centralizer 8, so that the stress of each support arm is uniform.
The strain detection slider 6 can be provided with a strain gauge, the strain gauge can deform and generate resistance change after being stressed, and the stress value can be determined according to the generated resistance change. Specifically, the strain gauge may be connected to a constant current circuit, and when the resistance value of the strain gauge changes, the output voltage of the circuit may change accordingly.
The temperature pressure nipple 9 may be used to measure pressure and/or temperature within the casing.
The magnetic positioning communication nipple 2 can also send pressure data and/or temperature data measured by the temperature and pressure nipple 9 to a ground control system.
FIG. 2 is a top view of the support arms on the upper arm sub and the lower arm sub in the casing technical condition detection device in the application when the support arms are unfolded. Referring to fig. 2, (a) in fig. 2 is a plan view of the upper arm sub when the arm is expanded, and (b) in fig. 2 is a plan view of the lower arm sub when the arm is expanded. As can be seen from the figure, the support arm 5 on the upper support arm short section 4 and the support arm 5 on the lower support arm short section 7 are not distributed and overlapped. Through with support arm 5 on the upper arm nipple joint 4 with support arm 5 on the support arm nipple joint 7 sets up to distributing and does not coincide down, and after the support arm on two support arm nipples opened, the hole between the strain detection slider that is located two adjacent support arms on a support arm nipple joint and corresponds can be detected by the strain detection slider on another support arm nipple joint, has improved the reliability of testing result.
In another embodiment, the device may further include one or more secondary arm nipples (not shown), which may have a plurality of arms disposed thereon. Each support arm of the plurality of support arms may be provided with a strain detection slider. A plurality of support arms evenly distributed on supplementary support arm nipple joint in the outside of supplementary support arm nipple joint, and distribute for the annular. And the support arm on the auxiliary support arm short section and the support arm 5 on the upper support arm short section 4 or the lower support arm short section 7 are arranged to be distributed and not overlapped.
Based on the casing technical condition detection device disclosed by the embodiment, the application also provides a casing technical condition detection method. Fig. 3 is a flow chart of one embodiment of a casing condition detection method of the present application. Referring to fig. 3, the method may include:
s301: the method comprises the steps of unfolding a support arm in the casing technical condition detection device, moving the casing technical condition detection device in the casing, and obtaining the position of the casing technical condition detection device and the measurement result of each strain detection slide block.
The arms in the cannula technical condition detecting device can be deployed. The deployed arms may contact the inner wall of the cannula to create a strain force.
The casing technical condition detection means in the above described embodiments may be moved in the casing. When the detection device is moved, the strain detection sliding block on the support arm also moves along with the detection device. The strain detection slider can measure strain force change in the moving process and generate corresponding voltage output.
Further, the detection result of the strain detection module may be a curve. If the conditions such as inward damage of the sleeve pipe are met, the pretightening force acting on the sliding block can be suddenly reduced, the resistance value of the strain gauge is increased, the output voltage of the detection circuit is increased, and the test curve deviates.
The position in the casing in the device can be obtained by utilizing the magnetic positioning communication short joint in the casing technical condition detection device.
S302: and determining the inner diameter of each position in the sleeve according to the position of the sleeve technical condition detection device and the measurement result of the strain detection slide block.
And determining the inner diameter of each position in the sleeve according to the position of the sleeve technical condition detection device and the measurement result of the strain detection slide block.
S303: and determining the technical condition of the casing according to the inner diameter of each position in the casing.
The technical conditions may include: holes, cracks, obstructions, or couplings, etc.
From the inner diameter at various locations within the casing, the technical condition of the casing can be determined. For example, casing leaks may exist where the inner diameter is increased; where the inner diameter is reduced, there may be a case where the casing is clogged.
Further, the method may further include: and generating a three-dimensional image in the sleeve by utilizing the inner diameters of all the positions in the sleeve. Specifically, data inversion can be performed on the measurement result of the strain detection slider and the inner diameter, and a three-dimensional image can be generated. The three-dimensional image can intuitively reflect the technical situation inside the cannula.
Further, the method may further include: pressures and/or temperatures at various locations within the casing are obtained. According to the pressure and/or the temperature, the technical state of the sleeve can be further judged, and the accuracy of the judgment result of the technical state in the sleeve is improved.
In the embodiment that this application provided, sleeve pipe technical situation detection device can guarantee that the support arm on two support arm nipple joints opens the back through setting up 2 or more support arm nipple joints, and the hole between the strain detection slider that two adjacent support arms that are located on a support arm nipple joint correspond can be detected by the strain detection slider on another support arm nipple joint, has improved the reliability of testing result. On the other hand, the well diameter and the stress field distribution of the casing can be measured simultaneously in one-time well descending, so that the three-dimensional description of the technical condition of the casing is realized, and the damage conditions of holes, damages, cracks and the like can be accurately judged due to the high sensitivity of the strain gauge.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.
While the present application has been described with examples, those of ordinary skill in the art will appreciate that there are numerous variations and permutations of the present application without departing from the spirit of the application, and it is intended that the appended claims encompass such variations and permutations without departing from the spirit of the application.
Claims (10)
1. A casing technical condition detection apparatus, comprising: the device comprises a cable head, a magnetic positioning communication short section, an upper centralizer, an upper arm short section, a lower centralizer and a temperature pressure short section;
a plurality of support arms are arranged on the upper arm short section and the lower arm short section;
the tail end of the support arm is connected with a strain detection sliding block; the strain detection slider is provided with a strain gauge, the strain gauge can deform and generate resistance value change after being stressed, and a stress value can be determined according to the generated resistance value change;
the plurality of support arms are uniformly distributed outside the upper support arm short section or the lower support arm short section and are distributed in an annular shape;
the distribution of the support arms on the upper support arm short section and the distribution of the support arms on the lower support arm short section are not overlapped, so that after the support arms on the upper support arm short section and the lower support arm short section are opened, a hole between the strain detection sliding blocks corresponding to two adjacent support arms on one support arm short section can be detected by the strain detection sliding block on the other support arm short section;
the magnetic positioning communication short section is used for data communication and collecting magnetic positioning signals.
2. The apparatus of claim 1, wherein an exterior of the cable head is coupled to the magnetically positionable communications sub; the interior of the cable head is connected with a cable.
3. The apparatus of claim 1 wherein said strain gage is connected to a constant current circuit.
4. The apparatus of claim 1, wherein the temperature pressure sub is used to measure pressure and/or temperature within the casing; then it is determined that,
and the magnetic positioning communication short joint is also used for sending pressure data and/or temperature data obtained by measuring the temperature and pressure short joint to a ground control system.
5. The device of claim 4, further comprising one or more secondary arm nipples having a plurality of arms disposed thereon.
6. The apparatus of claim 5, wherein each of the plurality of arms is provided with a strain sensing slide; a plurality of support arms evenly distributed on supplementary support arm nipple joint in the outside of supplementary support arm nipple joint, and distribute for the annular.
7. A casing technical condition detection method using the casing technical condition detection apparatus according to any one of claims 1 to 6, comprising:
unfolding a support arm in the casing technical condition detection device, moving the casing technical condition detection device in the casing, and obtaining the position of the casing technical condition detection device and the measurement result of each strain detection slide block; after the support arms on the upper support arm short section and the lower support arm short section are opened, a hole between the strain detection sliding blocks corresponding to two adjacent support arms on one support arm short section can be detected by the strain detection sliding block on the other support arm short section; the strain detection slider is provided with a strain gauge, the strain gauge can deform and generate resistance value change after being stressed, and the stress value can be determined according to the generated resistance value change;
determining the inner diameter of each position in the sleeve according to the position of the sleeve technical condition detection device and the measurement result of the strain detection slide block;
and determining the technical condition of the casing according to the inner diameter of each position in the casing.
8. The method of claim 7, wherein the technical condition comprises: a hole, a crack, a blockage or a collar.
9. The method of claim 7, further comprising: and generating a three-dimensional image in the sleeve by utilizing the inner diameters of all the positions in the sleeve.
10. The method of claim 7, further comprising: pressures and/or temperatures at various locations within the casing are obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810287261.4A CN108612522B (en) | 2018-04-03 | 2018-04-03 | Casing pipe technical condition detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810287261.4A CN108612522B (en) | 2018-04-03 | 2018-04-03 | Casing pipe technical condition detection device and method |
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| Publication Number | Publication Date |
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| CN108612522A CN108612522A (en) | 2018-10-02 |
| CN108612522B true CN108612522B (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810287261.4A Active CN108612522B (en) | 2018-04-03 | 2018-04-03 | Casing pipe technical condition detection device and method |
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| CN112362316B (en) * | 2019-07-23 | 2023-04-25 | 中国石油天然气股份有限公司 | Device and method for detecting trafficability of rigid casing centralizer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201696036U (en) * | 2010-05-18 | 2011-01-05 | 余建军 | Magnetic positioning oil well diameter logger |
| CN202250050U (en) * | 2011-10-21 | 2012-05-30 | 中国石油化工股份有限公司 | 32-arm hole-diameter imaging logging tool |
| CN202731886U (en) * | 2012-09-11 | 2013-02-13 | 王福祥 | Oil field underground casing pipe detection location instrument |
| US20170114628A1 (en) * | 2014-07-11 | 2017-04-27 | Halliburton Energy Services, Inc. | Slickline deployed casing inspection tools |
| CN204532342U (en) * | 2014-12-31 | 2015-08-05 | 中国石油天然气股份有限公司 | Caliper logging tool |
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