CN103015974B - A kind of oil-base mud logging instrument measuring probe - Google Patents
A kind of oil-base mud logging instrument measuring probe Download PDFInfo
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- CN103015974B CN103015974B CN201210570696.2A CN201210570696A CN103015974B CN 103015974 B CN103015974 B CN 103015974B CN 201210570696 A CN201210570696 A CN 201210570696A CN 103015974 B CN103015974 B CN 103015974B
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- measurement electrode
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- 239000000523 sample Substances 0.000 title claims abstract description 21
- 238000005259 measurement Methods 0.000 claims abstract description 78
- 239000011159 matrix material Substances 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims description 5
- 238000005070 sampling Methods 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910001026 inconel Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- BIJOYKCOMBZXAE-UHFFFAOYSA-N chromium iron nickel Chemical group [Cr].[Fe].[Ni] BIJOYKCOMBZXAE-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 229910000816 inconels 718 Inorganic materials 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The present invention relates to a kind of oil-base mud logging instrument measuring probe, comprising: matrix, the one side of matrix is provided with Electrode connection pin, and another side is test surface; Measurement electrode, the quantity of measurement electrode is 15, is evenly arranged on the test surface of matrix measurement electrode mutually insulated, and takes whole test surface.Measurement electrode in the present invention area when the area of test surface is constant maximizes, and substantially increases the intensity measuring response signal, improves the accuracy of measurement.
Description
Technical field
The present invention relates to a kind of oil-base mud logging instrument measuring probe.
Background technology
Measuring probe is the critical component of electric imaging logging instrument, and it comprises the measurement electrode of multiple mutually insulated, according to certain regular distribution on the measurement probe.The measuring probe emission electrode quantity of current oil-base mud is few (only having 8), and bucking electrode comparatively disperses, and measures response signal more weak; Electrode surface easily corrodes after going into the well, and affects logging quality; HTHP bottom electrode insulating properties and reliability general; Electrode arrangements is unreasonable, and electrode spacing is too little, and probe difficulty of processing is large.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides and a kind of measure that response signal is strong, test data oil-base mud logging instrument measuring probe more accurately.
Oil-base mud logging instrument measuring probe disclosed by the invention comprises:
Matrix, the one side of described matrix is provided with Electrode connection pin, and another side is test surface;
Measurement electrode, the quantity of described measurement electrode is 15, and described measurement electrode mutually insulated ground is evenly arranged on the test surface of described matrix, and takes whole test surface.
Preferably, described measurement electrode lines up two rows, and a row is 8, and another row is 7, and described two row's measurement electrode are staggered.
Preferably, the shape and size of each measurement electrode are all identical.
Preferably, the surface of described measurement electrode is circular.
Preferably, the surface of described test surface is arc.
Preferably, between the outward flange of described measurement electrode and described test surface, screen layer is set.
Preferably, seal between each measurement electrode and described matrix.
Preferably, described matrix also comprises electrode supporting face, and described electrode supporting face is metallic support face.
Beneficial effect of the present invention is:
1) area when the area of test surface is constant of the measurement electrode in the present invention maximizes, and substantially increases the intensity measuring response signal, improves the accuracy of measurement.
2) test surface in the present invention and the shape of measurement electrode more can make tester laminating well arm and measurement rules with arrangement, and test data is more accurate.
3) insulating layer in the present invention and sealant be arranged so that test probe has high-insulativity and high reliability at high temperature under high pressure.
Accompanying drawing explanation
Fig. 1 is the structural representation of oil-base mud logging instrument measuring probe in the embodiment of the present invention;
Fig. 2 is the left view of Fig. 1.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, hereinafter will be described in detail to embodiments of the invention by reference to the accompanying drawings.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can be combined mutually.
In an embodiment provided by the present invention, as shown in Figure 1, disclose a kind of oil-base mud logging instrument measuring probe, comprise matrix 1 and measurement electrode 2, wherein, matrix 1 is used for carrying measurement electrode 2, and measurement electrode 2 is used for sampled measurements.
As illustrated in fig. 1 and 2, the one side of matrix 1 is provided with Electrode connection pin 5, be used for carrying out signal with logging instrument built-in circuit to be connected, another side is test surface 3, measurement electrode 2 is arranged on test surface 3, to carry out sampled measurements, the response signal of sampled measurements sends logging instrument built-in circuit to by Electrode connection pin 5.
The quantity of measurement electrode 2 is 15, is arranged on the test surface 3 of matrix 1 measurement electrode 2 mutually insulated.Certainly, measurement electrode 2 can be arranged on uniformly on matrix 1 and to take whole test surface 3, with when the area of test surface 3 is fixing, the area of each measurement electrode 2 is maximized.Such as, 15 measurement electrode can be divided into two rows, and as shown in Figure 1, a row is 8, and another row is 7, and two row's measurement electrode 2 are interlocked evenly distributed.This arrangement mode of measurement electrode 2, when the area of test surface 3 is certain, improves the measurement area of measurement electrode 2, and then improves the intensity measuring response signal, improves the accuracy of measurement.
Preferably, the shape and size of each measurement electrode 2 are all identical.Sampling interval between adjacent two measurement electrode can be set to 0.3in, ensure that the high resolution ratio of measurement electrode 2.
The arrangement of measurement electrode 2 on test surface 3 can adopt various ways, as long as can realize measurement electrode 2 mutually insulated, and when the area of test surface 3 is fixing, makes the area improving each measurement electrode 2 as far as possible.
In an embodiment provided by the invention, the surface visiting measurement electrode 2 is circular, and coincidence measurement shooting rule, improves measurement effect more.Can certainly be other shapes, the present invention limit the shape of measurement electrode 2.
In an embodiment provided by the invention, the surface of test surface 3 is cambered surface, and measuring probe can be fitted well arm more, and survey data is more accurate.Can certainly be other shapes, the present invention limit the surface configuration of test surface 3.
In original 8 electrode measurement probes, measurement electrode is general and matrix is one-body molded, but when wherein a part of measurement electrode is subject to heavy corrosion or other damage and cannot work, the measurement electrode be damaged cannot be changed, can only continue to use, the accuracy of extreme influence test, or give it up, cause serious waste, therefore, in an embodiment provided by the invention, measurement electrode 2 can be flexibly connected with matrix 1, when certain measurement electrode is damaged, can only change the measurement electrode damaged, can ensure that all measurement electrode all normally work, be not easy again to cause waste, seal between each measurement electrode and matrix, such as, between measurement electrode and matrix, sealing ring 6 can be set, avoid in measuring process, the liquid of water or oil and so in the borehole wall flows to measuring probe, improve the reliability of test, the material of sealing ring 6 is preferably insulation materials.
Matrix 1 can also comprise electrode supporting face 7, is used for supporting measurement electrode 2, and electrode supporting face 7 is preferably metal material, can improve the voltage endurance capability of measurement electrode 2, and when arranging electrode supporting face 7, test surface 3, sealing ring 6 and electrode supporting face 7 set gradually.
In an embodiment provided by the invention, between measurement electrode 2 and test surface 3 outward flange, can metallic member be set, as screen layer 4, screen layer 4 can be ring-type, screen layer 4 around all measurement electrode 2, and is connected as a single entity, and effectively can improve the focusing performance of measurement electrode 2, measurement response signal is strong, and is easy to shaping.
The material of measurement electrode 2 can adopt inconel alloy.Adopt inconel718 alloy, this alloy is nickel-chromium-iron-based solid solution strengthened alloy, has good high temperature corrosion (acid and alkali-resistance), uses inconel alloy can improve decay resistance of the present invention, avoids surface corrosion occurs.
Although the embodiment disclosed by the present invention is as above, the embodiment that described content just adopts for the ease of understanding the present invention, and be not used to limit the present invention.Technician in any the technical field of the invention; under the prerequisite not departing from the spirit and scope disclosed by the present invention; any amendment and change can be done what implement in form and in details; but scope of patent protection of the present invention, the scope that still must define with appending claims is as the criterion.
Claims (5)
1. an oil-base mud logging instrument measuring probe, is characterized in that, comprising:
Matrix, the one side of described matrix is provided with Electrode connection pin, and another side is test surface;
Measurement electrode, the quantity of described measurement electrode is 15, and described measurement electrode mutually insulated ground is evenly arranged on the test surface of described matrix, and takes whole test surface; Described measurement electrode lines up two rows, and a row is 8, and another row is 7, and described two row's measurement electrode are staggered; Sampling interval between adjacent two measurement electrode is 0.3in, to guarantee the high-resolution of measurement electrode;
Described measurement electrode and described matrix, for being flexibly connected, arrange sealing ring insulated enclosure between each measurement electrode and described matrix;
Described matrix also comprises electrode supporting face, is used for supporting measurement electrode, and described test surface, sealing ring and electrode supporting face set gradually; Be provided with the metallic member as screen layer between described measurement electrode and test surface outward flange, described screen layer around all measurement electrode, and is connected as a single entity.
2. oil-base mud logging instrument measuring probe as claimed in claim 1, is characterized in that: the shape and size of each measurement electrode are all identical.
3. oil-base mud logging instrument measuring probe as claimed in claim 2, is characterized in that: the surface of described measurement electrode is for circular.
4. oil-base mud logging instrument measuring probe as claimed in claim 1, is characterized in that: the surface of described test surface is arc.
5. oil-base mud logging instrument measuring probe as claimed in claim 1, is characterized in that: described electrode supporting face is metallic support face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210570696.2A CN103015974B (en) | 2012-12-25 | 2012-12-25 | A kind of oil-base mud logging instrument measuring probe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210570696.2A CN103015974B (en) | 2012-12-25 | 2012-12-25 | A kind of oil-base mud logging instrument measuring probe |
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| Publication Number | Publication Date |
|---|---|
| CN103015974A CN103015974A (en) | 2013-04-03 |
| CN103015974B true CN103015974B (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210570696.2A Active CN103015974B (en) | 2012-12-25 | 2012-12-25 | A kind of oil-base mud logging instrument measuring probe |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060743A (en) * | 2016-12-29 | 2017-08-18 | 中国石油天然气集团公司 | A kind of mud resistivity probe |
| CN107218958A (en) * | 2017-05-15 | 2017-09-29 | 中国海洋石油总公司 | A kind of measuring electrode and preparation method thereof |
| CN107956468B (en) * | 2017-12-06 | 2025-02-18 | 中国石油化工集团有限公司 | Frequency Adaptive System of Oil-Based Mud Electrical Imaging Logging Tool |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1451952A (en) * | 2002-04-19 | 2003-10-29 | 精工电子有限公司 | Ray detector |
| CN101571509A (en) * | 2008-04-29 | 2009-11-04 | 周畅 | Ion imaging shielding electrode system |
| CN202041657U (en) * | 2011-04-25 | 2011-11-16 | 中国海洋石油总公司 | Measuring probe of electric imaging logging instrument |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2435747Y (en) * | 2000-06-23 | 2001-06-20 | 西安石油勘探仪器总厂 | Direction lateral well-logging instrument |
| CN2447786Y (en) * | 2000-09-08 | 2001-09-12 | 西安石油勘探仪器总厂 | Preset high humidity, high temp. and high pressure resistant electrode system made of glass fibre reinforced plastic |
| US7574907B2 (en) * | 2003-10-01 | 2009-08-18 | Rem Scientific Enterprises, Inc. | Apparatus and method for fluid flow measurement with sensor shielding |
| CN1702296A (en) * | 2005-06-17 | 2005-11-30 | 中国石化集团胜利石油管理局测井公司 | Electrode system of strong focusing dual laterolog equipment |
| US7388381B1 (en) * | 2007-04-23 | 2008-06-17 | U.S. Environmental Protection Agency | High resolution geoelectrical probe |
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- 2012-12-25 CN CN201210570696.2A patent/CN103015974B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1451952A (en) * | 2002-04-19 | 2003-10-29 | 精工电子有限公司 | Ray detector |
| CN101571509A (en) * | 2008-04-29 | 2009-11-04 | 周畅 | Ion imaging shielding electrode system |
| CN202041657U (en) * | 2011-04-25 | 2011-11-16 | 中国海洋石油总公司 | Measuring probe of electric imaging logging instrument |
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| CN103015974A (en) | 2013-04-03 |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |
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