CN102013299B - Three-dimensional induction XY coil system - Google Patents
Three-dimensional induction XY coil system Download PDFInfo
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- CN102013299B CN102013299B CN2009100920296A CN200910092029A CN102013299B CN 102013299 B CN102013299 B CN 102013299B CN 2009100920296 A CN2009100920296 A CN 2009100920296A CN 200910092029 A CN200910092029 A CN 200910092029A CN 102013299 B CN102013299 B CN 102013299B
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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 the wire crossing holes, 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 binding post, the binding post and the skeleton body are sintered to form an integrated structure, shielding plates respectively wrap the outer circular surface and both axial ends of each coil body, the shielding plates 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 inductive coil that is used for the three-dimensional induction logging appearance.This coil can be in the down-hole 175 ℃, and the HTHP of 140MPa uses down, and the volume of coil system is little, dependable performance, good insulation preformance.
Background technology
Induction resistivity well logging is to obtain the canonical measure of formation resistivity technology and since conventional induction instrument 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 appearance then uses the three-dimensional orthogonal coil system, 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 appearance can be extrapolated resistivity parallel with formation beds and the resistivity vertical with formation beds then through conversion.The three-dimensional induction logging appearance 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 inductolog technology is in high resistant stratum and inclined shaft or may affected shortcoming in the reservoir that tilts.The three-dimensional induction logging appearance 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 appearance can measure the resistivity of stratum horizontal direction (directions X, Y direction) and vertical direction (Z side), also stratigraphic dip and position angle can be provided simultaneously.Three-dimensional inductive coil series is as instrument signal emission and the sensor of accepting; Its performance directly determines the measurement result of instrument and the sensitivity of instrument, because the singularity of logging instrumentation, under the prerequisite that guarantees the coil system useful area; The coil system 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 appearance; 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 system better.
XY coil system in the three-dimensional induction instrument aratus of the present invention is made up of skeleton body, binding post, fixed block, connecting line, barricade and lead; Skeleton body is with the integral sintered right cylinder that forms of stupalith, has four winding slots in ceramic skeleton external symmetry, respectively 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 has two oblong slots through cable-through hole UNICOM between winding slot and cable-through hole, coiling is connected with instrument control portion through oblong slots; Signal on the coil is passed to instrument acquisition controlling part through the coil system endoporus; There are ten circular troughs that are used to hold the connecting line between UNICOM's coiling and the internal wiring skeleton body outside, makes connecting line not exceed the periphery of skeleton body, and connecting line and binding post welding are fixing; Binding post and the skeleton body structure that is sintered into one; Coat the barricade that is used for the coil signal shielding respectively at coil case periphery and axial two ends, fixed block welding on two ends barricade 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, in the three-dimensional induction logging instrument, generally all adopts split coil system structure at home and abroad; Be the X coil, the Y coil, the Z coil distribution makes coil system structure lengthening like this in axial diverse location; Instrument increases the weight of, and the instrument volume is bigger, because each coil system 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, and simultaneously, split type coil radially is being in a side of instrument axis; Make X, Y coil institute formation testing skewness like this, on one side dark shallow on one side, and this structure is that X, Y coil are split 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 are more even, and data are more accurate.
Gordian technique:
1.XY the coil rack body adopts the stupalith sintering to form, and both can bear higher temperature and pressure, little, the acid-alkali-corrosive-resisting of thermal expansivity, and nonmagnetic, good insulation preformance.
2. each binding post in the coil system, 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, practices thrift installing space again.
3. coil system adopts split shielding and bulk shielding structure combining form, in the bulk shielding form, carries out bulk shielding by each screen layer of axial two ends; And in the split shielding; In the cutting of each coiling group, cover a screen layer in addition, make shielding construction simple, dependable performance; Screen layer is effectively protected coil system again simultaneously; This structure both can effectively shield each coil in the same coil system again shielding between the different coil system groups simultaneously, prevented the interference between the coil system inside.
This coil can be in the down-hole 175 ℃, and the HTHP of 140MPa uses down, and the volume of coil system 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 synoptic diagram.
The three-dimensional induction of Fig. 3 XY coil system structural representation.
Wherein: 1 skeleton body, 2 binding posts, 3 fixed blocks, 4 connecting lines, 5 barricades
Embodiment
Below in conjunction with accompanying drawing the XY coil system structure in the three-dimensional induction instrument aratus of the present invention is described further.
XY coil system in the described three-dimensional induction instrument aratus of the present invention is made up of skeleton body 1, binding post 2, fixed block 3, connecting line 4, barricade 5 and lead; Skeleton body is with the integral sintered right cylinder that forms of stupalith, has four winding slots in ceramic skeleton external symmetry, respectively 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 has two oblong slots through cable-through hole UNICOM between winding slot and cable-through hole, coiling is connected with instrument control portion through oblong slots; Signal on the coil is passed to instrument acquisition controlling part through the coil system endoporus; There are ten circular troughs that are used to hold the connecting line between UNICOM's coiling and the internal wiring skeleton body outside, makes connecting line not exceed the periphery of skeleton body, and connecting line and binding post welding are fixing; Binding post and the skeleton body structure that is sintered into one; Coat the barricade that is used for the coil signal shielding respectively at coil case periphery and axial two ends, fixed block welding on two ends barricade and the skeleton body, fixed block and skeleton body are sintered into one.
Claims (1)
1. a three-dimensional induction XY coil system is made up of skeleton body, binding post, fixed block, connecting line, barricade and lead; It is characterized in that: skeleton body is with the integral sintered right cylinder that forms of stupalith, has four winding slots in ceramic skeleton external symmetry, respectively 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 has two oblong slots through cable-through hole UNICOM between winding slot and cable-through hole, coiling is connected with instrument control portion through oblong slots; Signal on the coil is passed to instrument acquisition controlling part through the coil system cable-through hole; There are ten circular troughs that are used to hold the connecting line between UNICOM's coiling and the internal wiring skeleton body outside, makes connecting line not exceed the periphery of skeleton body, and connecting line and binding post welding are fixing; Binding post and the skeleton body structure that is sintered into one; Coat the barricade that is used for the coil signal shielding respectively at coil case periphery and axial two ends, fixed block welding on two ends barricade 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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| Publication Number | Publication Date |
|---|---|
| CN102013299A CN102013299A (en) | 2011-04-13 |
| CN102013299B true CN102013299B (en) | 2012-02-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100920296A Active CN102013299B (en) | 2009-09-04 | 2009-09-04 | Three-dimensional induction XY coil system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2310500A (en) * | 1996-02-23 | 1997-08-27 | Western Atlas Int Inc | NMR well logging tool suitable for measurement-while-drilling (MWD) |
| 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
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2310500A (en) * | 1996-02-23 | 1997-08-27 | Western Atlas Int Inc | NMR well logging tool suitable for measurement-while-drilling (MWD) |
| 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 |
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| CN102013299A (en) | 2011-04-13 |
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