CN102013299A - Three-dimensional induction XY coil system - Google Patents
Three-dimensional induction XY coil system Download PDFInfo
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- CN102013299A CN102013299A CN2009100920296A CN200910092029A CN102013299A CN 102013299 A CN102013299 A CN 102013299A CN 2009100920296 A CN2009100920296 A CN 2009100920296A CN 200910092029 A CN200910092029 A CN 200910092029A CN 102013299 A CN102013299 A CN 102013299A
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Abstract
The invention relates to a three-dimensional induction XY coil system. A skeleton body is a cylindrical body formed by integrally sintering ceramic materials, four wire winding grooves are symmetrically arranged outside the ceramic skeleton body, two groups of X coils and two groups of Y coils are respectively wound outside the ceramic skeleton body, five wire crossing holes are arranged between two symmetric wire winding grooves, wire windings at both sides are communicated through the five wire crossing holes, two long round grooves are arranged between the wire winding grooves and an inner hole, the wire windings are connected with an instrument control part through the long round grooves to transfer a single on each coil to an instrument collection control part through the inner hole of the coil system, ten round grooves which are used for containing a connecting line between a communication wire winding and an internal line are arranged outside the skeleton body, the connecting line is not higher than the outer circular surface of the skeleton body and is welded and fixed with a connecting column, the connecting column and the skeleton body are sintered to form an integrated structure, shielding layers respectively wrap the outer circular surface and both axial ends of each coil body, the shielding layers at the both ends are welded with a fixed block on the skeleton body, and the fixed block and the skeleton body are sintered to form a whole body. The invention has the advantages of small volume, reliable performance and good insulating performance.
Description
Technical field
The present invention relates to a kind of induction coil that is used for the three-dimensional induction logging instrument.This coil can be in the down-hole 175 ℃, and the HTHP of 140MPa uses down, and the volume of coil array is little, dependable performance, good insulation preformance.
Background technology
Induction motor well logging is a canonical measure technology of obtaining formation resistivity and since conventional induction log tool only use z axis circle system (with the instrument axis in the same way), the electric current of its generation is parallel with formation beds, therefore measurement is the horizontal resistivity on stratum.The three-dimensional induction logging instrument then uses the three-dimensional orthogonal coil array, the electric current of its generation existing with the formation beds parallel portion, have again and the formation beds quadrature component, so this instrument both horizontal resistivity on energy measurement stratum, the also vertical resistivity on energy measurement stratum.When well and stratal surface out of plumb, the measurement data of three-dimensional induction logging instrument can be extrapolated resistivity parallel with formation beds and the resistivity vertical with formation beds then by conversion.The three-dimensional induction logging instrument can effectively be discerned filmated producing sandstone formation, but its oil saturation of precise quantification more, and the response accuracy that has overcome instrument in the conventional induction logging technology is in high resistant stratum and inclined shaft or may affected shortcoming in the reservoir that tilts.The three-dimensional induction logging instrument is widely used in the measurement of each diversity formation resistivity in oil well logging, it can carry out high resolution identification and evaluation to oil sheet, inner structure is analyzed and is explained layer by layer over the ground, to obtain the stratum oil saturation, be one of effective tools of oil reservoir under the identification complex environment.When practical application, the three-dimensional induction logging instrument can measure the resistivity of stratum horizontal direction (directions X, Y direction) and vertical direction (Z side), also can provide stratigraphic dip and azimuth simultaneously.Three-dimensional inductive coil series is as instrument signal emission and the transducer of accepting, its performance directly determines the measurement result of instrument and the sensitivity of instrument, because the particularity of logger, under the prerequisite that guarantees the coil array effective area, the coil array volume is more little, reliability is high more, and realizability is big more, and Instrumentation Operating Areas is extensive more.
Summary of the invention
The objective of the invention is provides a kind of simple, practical, less three dimensional coils architecture of volume for the three-dimensional induction logging instrument, this structure can make X, Y direction coil be on the same coil rack body, during well logging, in conjunction with independent Z-coil case, can test same degree of depth stratum level and vertical direction formation resistivity response signal, X, Y coil rack body adopt overall structure form, guarantee instrument stable use under high temperature, high pressure, and make the shielding of coil array better.
XY coil array in the three-dimensional induction instrument aratus of the present invention is made of skeleton body, binding post, fixed block, connecting line, barricade and lead; Skeleton body is with the integral sintered cylinder that forms of ceramic material, have four winding slots in ceramic skeleton external body symmetry, difference two groups of X coils of coiling and two groups of Y coils, five cable-through holes are arranged between the winding slot of symmetry, the both sides coiling is by cable-through hole UNICOM, between winding slot and endoporus, have two oblong slots, coiling is connected with instrument control portion by oblong slots, signal on the coil is passed to instrument acquisition controlling part by the coil array endoporus, there are ten circular recesss that are used to hold the connecting line between UNICOM's coiling and the internal wiring skeleton body outside, make connecting line not exceed the periphery of skeleton body, connecting line and joint pin welding are fixing, joint pin and the skeleton body structure that is sintered into one, the coil case periphery and axially two ends respectively burden be used for the screen of coil signal shielding, fixed block welding on two ends screen and the skeleton body, fixed block and skeleton body are sintered into one.
In the XY loop construction, the structure of multi-faceted coiling is the main crucial part of this invention, at home and abroad in the three-dimensional induction logging instrument, generally all adopt split coil array structure, i.e. X coil, Y coil, the Z coil distribution is in axial diverse location, make coil array structure lengthening like this, instrument increases the weight of, and the instrument volume is bigger, because each coil array is axially having alternate position spike, when well logging, can not focus on same degree of depth stratum simultaneously, instrument institute measuring formation resistivity exists certain depth poor, simultaneously, split type coil makes X like this radially being in a side of instrument axis, Y coil institute formation testing skewness, on one side dark shallow on one side, and this structure is with X, the Y coil splits into two parts respectively, make it the both sides that are distributed in the instrument axis of symmetry, X, the Y coil institute formation testing degree of depth is more even, and data are more accurate.
Key technology:
1.XY the coil rack body adopts the ceramic material sintering to form, and both can bear higher temperature and pressure, little, the acid-alkali-corrosive-resisting of thermal coefficient of expansion, and nonmagnetic, good insulation preformance.
2. each binding post in the coil array, contiguous block all direct sintering combines together with the coil rack body in the coil rack body, can make the general structure pressure-bearing property better, saves installing space again.
3. coil array adopts split shielding and bulk shielding structure combining form; in the bulk shielding form; carry out bulk shielding by each screen of axial two ends; and in the split shielding; in the cutting of each coiling group, cover a screen in addition; make shielding construction simple; dependable performance; screen is effectively protected coil array again simultaneously; this structure both can be to having shielded between the different coil array groups; can each coil in the same coil array effectively be shielded again simultaneously, prevent the interference between the coil array inside.
This coil can be in the down-hole 175 ℃, and the HTHP of 140MPa uses down, and the volume of coil array is little, dependable performance, good insulation preformance.
Description of drawings
The three-dimensional induction of Fig. 1 XY coil rack body circumferencial direction structural representation.
The three-dimensional induction of Fig. 2 XY coil rack body cylinder direction structure schematic diagram.
The three-dimensional induction of Fig. 3 XY coil array structural representation.
Wherein: 1 skeleton body, 2 binding posts, 3 fixed blocks, 4 fixed blocks, 5 barricades
Embodiment
Below in conjunction with accompanying drawing the XY coil array structure in the three-dimensional induction instrument aratus of the present invention is described further.
XY coil array in the described three-dimensional induction instrument aratus of the present invention is made of skeleton body 1, binding post 2, fixed block 3, connecting line 4, barricade 5 and lead; Skeleton body is with the integral sintered cylinder that forms of ceramic material, have four winding slots in ceramic skeleton external body symmetry, difference two groups of X coils of coiling and two groups of Y coils, five cable-through holes are arranged between the winding slot of symmetry, the both sides coiling is by cable-through hole UNICOM, between winding slot and endoporus, have two oblong slots, coiling is connected with instrument control portion by oblong slots, signal on the coil is passed to instrument acquisition controlling part by the coil array endoporus, there are ten circular recesss that are used to hold the connecting line between UNICOM's coiling and the internal wiring skeleton body outside, make connecting line not exceed the periphery of skeleton body, connecting line and joint pin welding are fixing, joint pin and the skeleton body structure that is sintered into one, the coil case periphery and axially two ends respectively burden be used for the screen of coil signal shielding, fixed block welding on two ends screen and the skeleton body, fixed block and skeleton body are sintered into one.
Claims (1)
1. a three-dimensional induction XY coil array is made of skeleton body, binding post, fixed block, connecting line, barricade and lead; It is characterized in that: skeleton body is with the integral sintered cylinder that forms of ceramic material, have four winding slots in ceramic skeleton external body symmetry, difference two groups of X coils of coiling and two groups of Y coils, five cable-through holes are arranged between the winding slot of symmetry, the both sides coiling is by cable-through hole UNICOM, between winding slot and endoporus, have two oblong slots, coiling is connected with instrument control portion by oblong slots, signal on the coil is passed to instrument acquisition controlling part by the coil array endoporus, there are ten circular recesss that are used to hold the connecting line between UNICOM's coiling and the internal wiring skeleton body outside, make connecting line not exceed the periphery of skeleton body, connecting line and joint pin welding are fixing, joint pin and the skeleton body structure that is sintered into one, the coil case periphery and axially two ends respectively burden be used for the screen of coil signal shielding, fixed block welding on two ends screen and the skeleton body, fixed block and skeleton body are sintered into one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100920296A CN102013299B (en) | 2009-09-04 | 2009-09-04 | Three-dimensional induction XY coil system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100920296A CN102013299B (en) | 2009-09-04 | 2009-09-04 | Three-dimensional induction XY coil system |
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| CN102013299A true CN102013299A (en) | 2011-04-13 |
| CN102013299B CN102013299B (en) | 2012-02-29 |
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| CN2009100920296A Active CN102013299B (en) | 2009-09-04 | 2009-09-04 | Three-dimensional induction XY coil system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114070A (en) * | 2015-09-23 | 2015-12-02 | 中国石油大学(北京) | Three-dimensional nuclear magnetic resonance logging instrument probe, logging instrument and antenna excitation method |
| CN112392462A (en) * | 2020-12-09 | 2021-02-23 | 中国石油天然气集团有限公司 | Receiving coil array for interlayer interface measurement and measurement system |
| CN112882113A (en) * | 2021-01-20 | 2021-06-01 | 中国石油天然气集团有限公司 | Coil structure of remote detection electromagnetic logging instrument for open hole well |
| CN116462514A (en) * | 2022-01-12 | 2023-07-21 | 中国石油天然气集团有限公司 | 3D printing ceramic hollow three-dimensional coil framework structure and manufacturing method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5757186A (en) * | 1996-02-23 | 1998-05-26 | Western Atlas International, Inc. | Nuclear magnetic resonance well logging apparatus and method adapted for measurement-while-drilling |
| CN1492239A (en) * | 2002-10-24 | 2004-04-28 | 胜利石油管理局测井公司 | High resolution induction well logging method |
| CN2676219Y (en) * | 2003-09-23 | 2005-02-02 | 中国科学院电工研究所 | Test coil for monocoil nulcear magnetic resonance system |
| CN2711750Y (en) * | 2004-06-21 | 2005-07-20 | 北京瑞达思科技开发公司 | Shield enclosure and three-D coil assembling magnetic space device |
-
2009
- 2009-09-04 CN CN2009100920296A patent/CN102013299B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114070A (en) * | 2015-09-23 | 2015-12-02 | 中国石油大学(北京) | Three-dimensional nuclear magnetic resonance logging instrument probe, logging instrument and antenna excitation method |
| CN105114070B (en) * | 2015-09-23 | 2018-04-10 | 中国石油大学(北京) | Three-dimensional NMR logging instrument probe, logging instrument and antenna excitation method |
| US10191178B2 (en) | 2015-09-23 | 2019-01-29 | China University Of Petroleum-Beijing | Three-dimensional nuclear magnetic resonance logging instrument probe, logging instrument and antenna excitation method |
| CN112392462A (en) * | 2020-12-09 | 2021-02-23 | 中国石油天然气集团有限公司 | Receiving coil array for interlayer interface measurement and measurement system |
| CN112882113A (en) * | 2021-01-20 | 2021-06-01 | 中国石油天然气集团有限公司 | Coil structure of remote detection electromagnetic logging instrument for open hole well |
| CN116462514A (en) * | 2022-01-12 | 2023-07-21 | 中国石油天然气集团有限公司 | 3D printing ceramic hollow three-dimensional coil framework structure and manufacturing method thereof |
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| CN102013299B (en) | 2012-02-29 |
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