CN108661574B - While-drilling azimuth lateral resistivity measurement probe and drill collar - Google Patents
While-drilling azimuth lateral resistivity measurement probe and drill collar Download PDFInfo
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- CN108661574B CN108661574B CN201810474896.5A CN201810474896A CN108661574B CN 108661574 B CN108661574 B CN 108661574B CN 201810474896 A CN201810474896 A CN 201810474896A CN 108661574 B CN108661574 B CN 108661574B
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- insulating layer
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- lateral
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- 238000005553 drilling Methods 0.000 title claims abstract description 38
- 238000005259 measurement Methods 0.000 title claims abstract description 36
- 239000000523 sample Substances 0.000 title claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 12
- 239000011521 glass Substances 0.000 claims description 15
- 238000009755 vacuum infusion Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000003384 imaging method Methods 0.000 abstract description 6
- 239000004568 cement Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/16—Drill collars
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Geophysics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
The invention provides a measurement probe and a drill collar for measuring the lateral resistivity of a while-drilling azimuth, wherein the measurement probe for measuring the lateral resistivity of the while-drilling azimuth comprises: the base body is provided with a positioning hole; the azimuth lateral electrode is positioned in the positioning hole; and the insulating layer is arranged between the hole wall of the positioning hole and the azimuth lateral electrode and hermetically connects the substrate and the azimuth lateral electrode. The outer side of the insulating layer is provided with the base body, the base body protects the insulating layer, the measurement probe for the lateral resistivity in the orientation while drilling works in the vibration and impact environment while drilling for a long time and rubs with the well wall, cracks can not be generated in the insulating layer, the sealing performance and the insulating performance of the measurement probe for the lateral resistivity in the orientation while drilling can be effectively ensured, and the influence on an imaging measurement result is avoided.
Description
Technical Field
The invention relates to the technical field of machinery, in particular to a measurement probe and a drill collar for measuring the lateral resistivity of a while-drilling azimuth.
Background
The existing measurement probe for measuring the lateral resistivity in the orientation while drilling is usually manufactured by adopting a glass sintering technology, the sintered glass is exposed, works in the vibration and impact environment while drilling for a long time and is rubbed with a well wall, finally, the sintered glass can generate cracks, the sealing performance and the insulating performance of the measurement probe for measuring the lateral resistivity in the orientation while drilling are reduced, and the imaging measurement result is influenced.
Disclosure of Invention
In order to solve at least one of the technical problems, the azimuthal lateral resistivity measuring while drilling probe is provided, the service performance and the sealing performance of the azimuthal lateral resistivity measuring while drilling probe are good, and imaging measurement results are not influenced.
Provided herein is an azimuthal lateral resistivity measurement while drilling probe, comprising: the base body is provided with a positioning hole; the azimuth lateral electrode is positioned in the positioning hole; and the insulating layer is arranged between the hole wall of the positioning hole and the azimuth lateral electrode and hermetically connects the substrate and the azimuth lateral electrode.
Optionally, the insulating layer comprises: the glass insulating layer is sintered between the hole wall of the positioning hole and the azimuth lateral electrode and is used for connecting the substrate and the azimuth lateral electrode together, and a groove with an upward opening is formed among the hole wall of the positioning hole, the azimuth lateral electrode and the glass insulating layer; and the wear-resistant insulating layer is arranged in the groove.
Optionally, the wear-resistant insulating layer is filled in the groove in a vacuum infusion manner by using wear-resistant insulating glue.
Optionally, the positioning hole includes: an upper blind hole section with an upward opening, wherein the azimuth lateral electrode is arranged in the upper blind hole section; and the lower blind hole section is provided with a downward opening, a communication hole is formed in the common bottom wall of the upper blind hole section and the lower blind hole section, and the connecting terminal of the azimuth lateral electrode penetrates through the communication hole and extends into the lower blind hole section.
Optionally, the base body is further provided with a through hole for passing a screw.
Optionally, the base body is further provided with a screw hole for mounting a jackscrew.
Optionally, the lower end of the base body is provided with a protrusion, and a sealing groove for installing a sealing ring is formed in a side wall of the protrusion.
Optionally, the substrate is a wear resistant, corrosion resistant metal piece.
Drill collars are provided herein that include an while-drilling azimuthal lateral resistivity measurement probe as described in any of the embodiments above.
Compared with the prior art, the while-drilling azimuth lateral resistivity measurement probe provided by the invention has the advantages that the substrate is arranged on the outer side of the insulating layer and protects the insulating layer, the while-drilling azimuth lateral resistivity measurement probe works in a vibration and impact environment while drilling for a long time and rubs with a well wall, cracks cannot be generated on the insulating layer, the sealing performance and the insulating performance of the while-drilling azimuth lateral resistivity measurement probe can be effectively ensured, and the imaging measurement result is prevented from being influenced.
Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the disclosure. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments herein and are incorporated in and constitute a part of this specification, illustrate embodiments herein and are not to be construed as limiting the embodiments herein.
FIG. 1 is a schematic structural diagram of a schematic front view of an while-drilling azimuthal lateral resistivity measurement probe according to an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view A-A of the while-drilling azimuthal lateral resistivity measurement probe of FIG. 1.
Wherein, the corresponding relationship between the reference numbers and the component names in fig. 1 and 2 is as follows:
the structure comprises a base body 1, a through hole 11, a bulge 12, a sealing groove 13, a screw hole 14, a lateral electrode 2, a wiring terminal 21, a glass insulating layer 3, a wear-resistant insulating layer 4, a blind hole section 51, a blind hole section 52 below and a communication hole 53.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, however, the present disclosure may be practiced otherwise than as specifically described herein, and thus the scope of the present disclosure is not limited by the specific embodiments disclosed below.
The azimuthal lateral resistivity measurement while drilling probe and collar of some embodiments herein are described below with reference to the accompanying drawings.
The invention provides a measurement probe for measuring azimuthal lateral resistivity while drilling, as shown in fig. 1 and 2, comprising: a base body 1 provided with a positioning hole; the azimuth lateral electrode 2 is positioned in the positioning hole; and the insulating layer is arranged between the hole wall of the positioning hole and the azimuth lateral electrode 2 and hermetically connects the substrate 1 and the azimuth lateral electrode 2.
According to the measurement probe for the lateral resistivity in the orientation while drilling, provided by the invention, the substrate 1 is arranged on the outer side of the insulating layer, the insulating layer is protected by the substrate 1, the measurement probe for the lateral resistivity in the orientation while drilling works in the vibration and impact environment while drilling for a long time and is in friction with a well wall, so that the insulating layer is not cracked, the sealing performance and the insulating performance of the measurement probe for the lateral resistivity in the orientation while drilling can be effectively ensured, and the imaging measurement result is prevented from being influenced.
Specifically, the insulating layer includes: the glass insulating layer 3 is sintered between the hole wall of the positioning hole and the azimuth lateral electrode 2 and is used for connecting the substrate 1 and the azimuth lateral electrode 2 together, and a groove with an upward opening is formed among the hole wall of the positioning hole, the azimuth lateral electrode 2 and the glass insulating layer 3; and the wear-resistant insulating layer 4 is arranged in the groove and used for protecting the upper end face of the glass insulating layer 3.
Wherein, wear-resisting insulating layer 4 adopts wear-resisting insulating cement to fill in the recess with the mode of vacuum infusion, and wear-resisting insulating cement is the wear-resisting insulating cement of high temperature high strength, and glass insulation layer 3 is high temperature insulating glass.
Specifically, as shown in fig. 2, the positioning hole includes: an upper blind via section 51 opened upward, the azimuth lateral electrode 2 being disposed in the upper blind via section 51; and a lower blind hole section 52 with a downward opening, wherein a through hole 53 is formed in the common bottom wall of the upper blind hole section 51 and the lower blind hole section 52, the connecting terminal 21 of the azimuth lateral electrode 2 passes through the through hole 53 and extends into the lower blind hole section 52, and the glass insulating layer 3 is positioned between the hole wall of the upper blind hole section 51 and the azimuth lateral electrode 2 and between the hole wall of the through hole 53 and the connecting terminal 21.
Furthermore, as shown in fig. 1 and fig. 2, a through hole 11 for inserting a screw is further provided on the base 1, a protrusion 12 is provided at the lower end of the base 1, a sealing groove 13 for installing a sealing ring is provided on the sidewall of the protrusion 12, the sealing ring is installed in the sealing groove 13, the base 1 is fixed on the drill collar body by a screw, a screw hole 14 for installing a jackscrew is further provided on the base 1, and the base 1 is detached on the drill collar body by the jackscrew during detachment.
Preferably, the substrate 1 is a wear-resistant and corrosion-resistant metal member, and the metal is stainless steel or the like.
The invention provides a drill collar (not shown in the figure), which comprises a drill collar body and an while-drilling azimuth lateral resistivity measurement probe in any embodiment.
The drill collar provided by the invention has all the advantages of the azimuthal lateral resistivity measuring probe while drilling described in any embodiment, and the detailed description is omitted.
In conclusion, the while-drilling azimuth lateral resistivity measurement probe provided by the invention has the advantages that the substrate is arranged on the outer side of the insulating layer and protects the insulating layer, the while-drilling azimuth lateral resistivity measurement probe works in a vibration and impact environment while drilling for a long time and rubs with a well wall, cracks cannot be generated on the insulating layer, the sealing performance and the insulating performance of the while-drilling azimuth lateral resistivity measurement probe can be effectively ensured, and the imaging measurement result is prevented from being influenced.
In the description herein, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., "connected" may be a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms herein can be understood by those of ordinary skill in the art as appropriate.
In the description of the specification, reference to the term "one embodiment," "some embodiments," "a specific embodiment," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example herein. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although the embodiments disclosed herein are described above, the descriptions are only for the convenience of understanding the embodiments and are not intended to limit the disclosure. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure, and that the scope of the disclosure herein may be limited only by the appended claims.
Claims (5)
1. An azimuthal lateral resistivity measurement while drilling probe, comprising:
the base body is provided with a positioning hole, a through hole for penetrating a screw and a screw hole for mounting a jackscrew, the lower end of the base body is provided with a bulge, a sealing groove for mounting a sealing ring is formed in the side wall of the bulge, the base body is fixed on the drill collar body through the screw and is detached from the drill collar body through the jackscrew;
the azimuth lateral electrode is positioned in the positioning hole; and
the insulating layer is arranged between the hole wall of the positioning hole and the azimuth lateral electrode and is in sealing connection with the base body and the azimuth lateral electrode, the insulating layer comprises a glass insulating layer and a wear-resistant insulating layer, the glass insulating layer is sintered between the hole wall of the positioning hole and the azimuth lateral electrode and is used for connecting the base body and the azimuth lateral electrode together, a groove with an upward opening is formed among the hole wall of the positioning hole, the azimuth lateral electrode and the glass insulating layer, and the wear-resistant insulating layer is arranged in the groove.
2. The while-drilling azimuthal lateral resistivity measurement probe of claim 1, wherein the wear-resistant insulating layer is filled in the groove in a vacuum infusion manner by using wear-resistant insulating glue.
3. The azimuthal lateral resistivity measurement while drilling probe of claim 1 or claim 2 wherein the pilot bore comprises:
an upper blind hole section with an upward opening, wherein the azimuth lateral electrode is arranged in the upper blind hole section; and
the connecting terminal of the azimuth lateral electrode penetrates through the communicating hole and extends into the lower blind hole section.
4. The azimuthal lateral resistivity measurement while drilling probe of claim 1 or claim 2 wherein the substrate is a metallic member.
5. A drill collar comprising an azimuthal lateral resistivity measurement while drilling probe as claimed in any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474896.5A CN108661574B (en) | 2018-05-17 | 2018-05-17 | While-drilling azimuth lateral resistivity measurement probe and drill collar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474896.5A CN108661574B (en) | 2018-05-17 | 2018-05-17 | While-drilling azimuth lateral resistivity measurement probe and drill collar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108661574A CN108661574A (en) | 2018-10-16 |
| CN108661574B true CN108661574B (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810474896.5A Active CN108661574B (en) | 2018-05-17 | 2018-05-17 | While-drilling azimuth lateral resistivity measurement probe and drill collar |
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| Country | Link |
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| CN (1) | CN108661574B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798643B (en) * | 2018-06-01 | 2022-04-08 | 中国海洋石油集团有限公司 | Electric imaging measuring probe |
| CN111236922B (en) * | 2020-02-25 | 2022-09-06 | 中国海洋石油集团有限公司 | Measurement while drilling probe device, electrical imaging while drilling method and electrical imaging while drilling system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6850068B2 (en) * | 2001-04-18 | 2005-02-01 | Baker Hughes Incorporated | Formation resistivity measurement sensor contained onboard a drill bit (resistivity in bit) |
| US6942043B2 (en) * | 2003-06-16 | 2005-09-13 | Baker Hughes Incorporated | Modular design for LWD/MWD collars |
| US6957708B2 (en) * | 2003-07-08 | 2005-10-25 | Baker Hughes Incorporated | Electrical imaging in conductive and non-conductive mud |
| CN203097871U (en) * | 2012-10-10 | 2013-07-31 | 中国石油集团长城钻探工程有限公司 | Pole plate electrode system for logging instrument and pole plate assembly for logging instrument |
| CN103912264B (en) * | 2013-01-06 | 2017-02-08 | 中国石油化工股份有限公司 | Near-bit logging-while-drilling resistivity measuring device |
| CN204041058U (en) * | 2014-08-06 | 2014-12-24 | 新疆格瑞迪斯石油技术股份有限公司 | Azimuthal resistivity geosteering tool |
| US9989665B2 (en) * | 2015-04-29 | 2018-06-05 | Schlumberger Technology Corporation | Wear resistant electrodes for downhole imaging |
| CN106884652B (en) * | 2017-03-22 | 2020-09-29 | 中国石油天然气集团公司 | Apparent resistivity measuring method for measurement while drilling |
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- 2018-05-17 CN CN201810474896.5A patent/CN108661574B/en active Active
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| CN108661574A (en) | 2018-10-16 |
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