CN111381284A - Cover porcelain plate structure - Google Patents
Cover porcelain plate structure Download PDFInfo
- Publication number
- CN111381284A CN111381284A CN202010117695.7A CN202010117695A CN111381284A CN 111381284 A CN111381284 A CN 111381284A CN 202010117695 A CN202010117695 A CN 202010117695A CN 111381284 A CN111381284 A CN 111381284A
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- Prior art keywords
- plate
- electrode
- isolation
- polar plate
- plate body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910052573 porcelain Inorganic materials 0.000 title abstract description 6
- 238000002955 isolation Methods 0.000 claims abstract description 53
- 239000000919 ceramic Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 7
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000003208 petroleum Substances 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000011435 rock Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Insulators (AREA)
Abstract
The invention discloses a porcelain-coated polar plate structure, which comprises a polar plate body used for installing an isolation plate and an isolation ring, the isolation plate used for installing a first electrode and a second electrode, and a shell formed by the isolation ring used for installing a third electrode and the first electrode, the second electrode, the third electrode and a sealing ring; a balance plate is arranged in a shell composed of the polar plate body and the like and used for protecting the circuit board; the bottom of the polar plate body is provided with a cover plate by screws. And powerful support is provided for the subsequent productive logging. The ceramic-coated polar plate is made of partial ceramic materials reasonably, so that the polar plate has wear resistance naturally in the structure, the service life of the polar plate is prolonged, and the production cost of petroleum logging is saved.
Description
Technical Field
The invention belongs to the technical field of petroleum logging instruments, and relates to a porcelain-coated polar plate structure.
Background
In oil logging instruments, the formation resistivity tool is one of the most important branches. Among these, the electrodes of many resistivity logging instruments need to be in close proximity to the borehole wall. The polar plate is one of important means for realizing the electrode clinging to the well wall.
Many types of plates have internal signal processing circuitry. The ceramic-coated polar plate is also provided with a signal processing circuit in the limited cavity. These circuits require reliable protection which is effectively provided by the ceramic-coated plates.
Because the polar plate is tightly attached to the well wall, the polar plate and the rock stratum of the well wall generate friction in the sliding process of polar plate operation. Friction causes the plates to wear rapidly against the rock face of the borehole wall. Although some wear prevention treatments have been done in the past, none are ideal.
Disclosure of Invention
The invention aims to solve the problem that the polar plate is quickly abraded by a rock stratum surface of a well wall due to friction, and provides a ceramic-coated polar plate structure which can effectively improve the wear resistance of the polar plate, prolong the service life of the polar plate and save the production cost. And powerful support is provided for the subsequent productive logging.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a ceramic-coated polar plate structure comprises a polar plate body for supporting a main body;
one side of the polar plate body is provided with an isolation plate and an isolation ring for electric isolation, and the upper part of the isolation plate is provided with a first electrode and a second electrode; a third electrode is arranged at the upper part of the isolating ring;
the other side of the polar plate body is provided with a cover plate, a balance plate and a circuit board, the circuit board is arranged on the polar plate body, and the balance plate is in contact with the circuit board; the cover plate is arranged outside the balance plate and connected with the pole plate body;
the first electrode, the second electrode and the third electrode are all electrically connected with the circuit board;
the isolation plate and the isolation ring are made of ceramic materials.
As a further improvement of the invention, the balance plate is made of elastic material.
As a further improvement of the invention, the isolation plate is clamped between the pole plate body and the first electrode, the isolation ring is clamped between the pole plate body and the third electrode, and the second electrode is fixedly mounted with the pole plate body through the isolation plate.
As a further improvement of the invention, the balance plate is fixedly arranged with the pole plate body through the cover plate; the cover plate is fixedly installed with the pole plate body through screws.
As a further improvement of the invention, the polar plate body and the isolation plate, the polar plate body and the isolation ring, the isolation plate and the second electrode, and the isolation ring and the third electrode are sealed by sealing rings.
As a further improvement of the invention, oil is filled between the cover plate and the pole plate body to form a balance oil cavity, and the balance plate is used for realizing pressure balance.
As a further improvement of the invention, two sides of the polar plate body are both of a plurality of groove-shaped structures, and the isolation plate, the first electrode and the second electrode are arranged in the first groove-shaped structure; the third electrode and the isolating ring are arranged in the second groove-shaped structure; the balance board and the circuit board are disposed within the third channel structure.
As a further improvement of the invention, the isolating plate, the first electrode, the second electrode, the third electrode and the isolating ring are flush with the surface of the plate body to form an integrated structure.
Compared with the prior art, the invention has the following beneficial effects:
the invention relates to a ceramic-coated polar plate structure which is divided into two parts, namely a shell consisting of a polar plate body, an isolating plate, an isolating ring, a first electrode, a second electrode, a third electrode, a balance plate and a cover plate and an inner cavity consisting of a circuit board. Due to the use of the ceramic material, the wear resistance of the polar plate can be improved, the service life is prolonged, the replacement time of the polar plate is shortened, the production efficiency is improved, the use cost is reduced, and a powerful support is provided for the production and use of the oil field. The ceramic-coated polar plate is made of partial ceramic materials reasonably, so that the polar plate has wear resistance naturally in the structure, the service life of the polar plate is prolonged, and the production cost of petroleum logging is saved. The polar plate is applied to a plurality of petroleum logging instruments, the ceramic-coated polar plate also provides an effective solution for the structures of various polar plates, and the polar plate has wide application prospect and economic benefit in the petroleum logging instrument market.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for facilitating the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. Those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the invention as a matter of case. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the overall structure of the present invention;
FIG. 3 is a schematic diagram of the working principle of the present invention;
wherein, 1-a polar plate body; 2-a separation plate; 3-a first electrode; 4-a second electrode; 5-a third electrode; 6-a spacer ring; 7-cover plate; 8-a balance plate; 9-a circuit board; 10-a sealing ring; 11-a screw; 100-a porcelain-clad plate structure; 200-the formation of interest being tested.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the ceramic-coated polar plate structure of the invention comprises a polar plate body 1 supported by a main body, wherein an isolation plate 2 for electrical isolation is arranged at the upper part of the polar plate body 1, and a first electrode 3 and a second electrode 4 are arranged at the upper part of the isolation plate 2; an isolation ring 6 for electrical isolation is further arranged at the upper part of the polar plate body 1, and a third electrode 5 is arranged at the upper part of the isolation ring 6; the joints among the polar plate body 1, the isolation plate 2, the first electrode 3, the second electrode 4, the third electrode 5 and the isolation ring 6 are sealed by sealing rings 10.
Specifically, as shown in fig. 2, the porcelain-coated electrode plate structure 100 includes an electrode plate body 1 for mounting an isolation plate 2 and an isolation ring 6, the isolation plate 2 for mounting a first electrode 3 and a second electrode 4, and a housing formed by the isolation ring 6 for mounting a third electrode 5, the first electrode 3, the second electrode 4, the third electrode 5 and a sealing ring 10; a balance plate 8 is arranged in a shell composed of the polar plate body 1 and the like and used for protecting a circuit board 9; the cover plate 7 is mounted on the bottom of the plate body 1 by screws 11.
Wherein, the isolation plate 2 is made of ceramic material. The isolating ring 6 is made of ceramic material. The balance plate 8 is made of an elastic material. The separator 2 is fixedly mounted between the plate body 1 and the first electrode 3. The spacer ring 6 is fixedly mounted between the plate body 1 and the third electrode 5.
The second electrode 4 is fixedly mounted with the plate body 1 through the isolation plate 2. The balance plate 8 is fixedly mounted with the pole plate body 1 through the cover plate 7. Sealing rings 10 are used for sealing between the polar plate body 1 and the isolation plate 2, between the polar plate body 1 and the isolation ring 6, between the isolation plate 2 and the second electrode 4, and between the isolation ring 6 and the third electrode 5.
The cover plate 7 is fixedly mounted with the pole plate body 1 through screws. Oil is filled between the cover plate 7 and the pole plate body 1 to form a balance oil cavity. Pressure equalization is achieved using the equalization plate 8.
As a preferred embodiment, two sides of the plate body 1 are both of a plurality of groove-shaped structures, and the isolation plate 2, the first electrode 3 and the second electrode 4 are arranged in the first groove-shaped structure; the third electrode 5 and the isolating ring 6 are arranged in the second groove-type structure; the balance board 8 and the circuit board 9 are arranged in a third channel structure.
The separator 2, the first electrode 3, the second electrode 4, the third electrode 5 and the separator 6 are flush with the surface of the plate body 1 to form an integrated structure. Therefore, the electrode side is a plane, and when the resistivity test is carried out, all three electrodes can be tested, so that the contact is good.
The principle and the working process of the invention are as follows:
as shown in figure 3, when in use, the porcelain-covered polar plate is integrally clung to the well wall. The porcelain-coated polar plate slides along with the dragging of the cable or the drill rod. And the electrode connected to the polar plate is used for completing the measurement of the formation resistivity through the detection of the built-in circuit. And according to the measured data, describing formation information and providing important data support for oil exploration.
The invention has the characteristics that:
1. wear-resistant structure
As shown in fig. 3, the separator of the plate is formed integrally with the plate body. When the friction force is produced during production operation, the hard material of the isolation plate and the well wall slide, the friction force is firstly borne by the isolation plate, and most of the friction force is borne by the hard isolation plate, so that the polar plate body is protected from friction, the service life of the polar plate is prolonged, and the production efficiency is improved.
2. Hydraulic balancing
As shown in fig. 1, the cavity of the pole plate is filled with insulating oil, and under the balance action of the balance plate, pressure balance inside and outside the cavity is realized, so that the circuit board is protected from being damaged by short circuit, insulation reduction and the like; meanwhile, the manufacturing difficulty is reduced, and the cost performance of the polar plate is improved.
3. Built-in circuit
As shown in fig. 1, a circuit is arranged in the polar plate, and the formation resistivity signal measured by the electrode is amplified, calculated and processed nearby, so that signal interference and distortion caused by long-distance transmission are avoided, and the measured resistivity closer to the true resistivity of the formation is provided.
It should be noted that, in the description of the present invention, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is considered as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided would be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of subject matter that is disclosed herein is not intended to forego such subject matter, nor should the applicant consider that such subject matter is not considered part of the disclosed subject matter.
Claims (8)
1. A porcelain-clad pole plate structure is characterized by comprising a pole plate body (1) used for supporting a main body;
an isolation plate (2) and an isolation ring (6) for electrical isolation are arranged on one side of the polar plate body (1), and a first electrode (3) and a second electrode (4) are arranged on the upper portion of the isolation plate (2); a third electrode (5) is arranged at the upper part of the isolating ring (6);
a cover plate (7), a balance plate (8) and a circuit board (9) are arranged on the other side of the polar plate body (1), the circuit board (9) is arranged on the polar plate body (1), and the balance plate (8) is in contact with the circuit board (9); the cover plate (7) is arranged outside the balance plate (8), and the cover plate (7) is connected with the pole plate body (1);
the first electrode (3), the second electrode (4) and the third electrode (5) are all electrically connected with the circuit board (9);
the isolation plate (2) and the isolation ring (6) are both made of ceramic materials.
2. Porcelain-clad plate structure according to claim 1, characterized in that said balancing plate (8) is made of an elastic material.
3. The ceramic-coated polar plate structure as claimed in claim 1, wherein the separator (2) is sandwiched between the polar plate body (1) and the first electrode (3), the separator ring (6) is sandwiched between the polar plate body (1) and the third electrode (5), and the second electrode (4) is fixedly mounted with the polar plate body (1) through the separator (2).
4. The porcelain-clad plate structure as claimed in claim 1, wherein the balance plate (8) is fixedly mounted with the plate body (1) through a cover plate (7); the cover plate (7) is fixedly arranged with the pole plate body (1) through screws.
5. The ceramic-coated polar plate structure according to claim 1, wherein the polar plate body (1) and the isolation plate (2), the polar plate body (1) and the isolation ring (6), the isolation plate (2) and the second electrode (4), and the isolation ring (6) and the third electrode (5) are sealed by sealing rings (10).
6. The porcelain-covered polar plate structure as claimed in claim 1, wherein oil is filled between the cover plate (7) and the polar plate body (1) to form an oil balance chamber, and a balance plate (8) is used for pressure balance.
7. The porcelain-covered polar plate structure as claimed in claim 1, wherein both sides of the polar plate body (1) are of a plurality of groove-shaped structures, and the isolation plate (2), the first electrode (3) and the second electrode (4) are arranged in the first groove-shaped structure; the third electrode (5) and the isolating ring (6) are arranged in the second groove-type structure; the balance plate (8) and the circuit board (9) are arranged in the third groove-shaped structure.
8. The ceramic-coated polar plate structure as claimed in claim 7, wherein the isolation plate (2), the first electrode (3), the second electrode (4), the third electrode (5) and the isolation ring (6) are flush with the surface of the polar plate body (1) to form an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010117695.7A CN111381284A (en) | 2020-02-25 | 2020-02-25 | Cover porcelain plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010117695.7A CN111381284A (en) | 2020-02-25 | 2020-02-25 | Cover porcelain plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111381284A true CN111381284A (en) | 2020-07-07 |
Family
ID=71218576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010117695.7A Pending CN111381284A (en) | 2020-02-25 | 2020-02-25 | Cover porcelain plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111381284A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2479210Y (en) * | 2001-04-12 | 2002-02-27 | 西安石油勘探仪器总厂 | Stratigraphic dip logging unit pad |
| US20090243619A1 (en) * | 2008-03-26 | 2009-10-01 | Baker Hughes Incorporated | Four-terminal electric imager for resistive muds with localized current control |
| CN202145232U (en) * | 2011-06-24 | 2012-02-15 | 中国海洋石油总公司 | Logger pole plate of microresistivity scanning imaging |
| CN103726831A (en) * | 2012-10-10 | 2014-04-16 | 中国石油集团长城钻探工程有限公司 | Pole plate electrode system for logging instrument |
-
2020
- 2020-02-25 CN CN202010117695.7A patent/CN111381284A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2479210Y (en) * | 2001-04-12 | 2002-02-27 | 西安石油勘探仪器总厂 | Stratigraphic dip logging unit pad |
| US20090243619A1 (en) * | 2008-03-26 | 2009-10-01 | Baker Hughes Incorporated | Four-terminal electric imager for resistive muds with localized current control |
| CN202145232U (en) * | 2011-06-24 | 2012-02-15 | 中国海洋石油总公司 | Logger pole plate of microresistivity scanning imaging |
| CN103726831A (en) * | 2012-10-10 | 2014-04-16 | 中国石油集团长城钻探工程有限公司 | Pole plate electrode system for logging instrument |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20200707 |