CN102866428A - Transverse coil for logging instrument and forming method thereof - Google Patents
Transverse coil for logging instrument and forming method thereof Download PDFInfo
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- CN102866428A CN102866428A CN2012103373955A CN201210337395A CN102866428A CN 102866428 A CN102866428 A CN 102866428A CN 2012103373955 A CN2012103373955 A CN 2012103373955A CN 201210337395 A CN201210337395 A CN 201210337395A CN 102866428 A CN102866428 A CN 102866428A
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Abstract
The invention relates to a transverse coil for a logging instrument and a forming method thereof. A transverse antenna of the logging instrument is produced as follows: a corresponding hole or a groove is formed on a logging instrument substrate; an antenna is continuously wound inside the hole or the groove, and the antenna comprises four semicircular antennas and four longitudinal (which is identical to the axial direction of an instrument) antennas; and equal-interval grooves which are vertical to the longitudinal antennas are formed. After the antenna is wound, the direction of overall magnetic dipole of the coil is vertical to the axial direction of the instrument. The transverse coil for the logging instrument can improve the accuracy and completeness of the information logged by the logging instrument and is applicable to the logging technical field in the oil gas exploration.
Description
Technical field
The present invention relates to a kind of transverse coil that is used for logging instrumentation that can be applicable to the logging technology field in the oil-gas exploration and forming method thereof, comprise the technical field of well logging while drilling and wireline logging.
Background technology
Long horizontal traverse well and horizontal well reduce operating cost and have vital role for improving oil recovery rate, and offshore oil field development is all the more so.The high-quality well track be unable to do without accurately geosteering, and this has just proposed requirements at the higher level to accuracy and the integrality of well logging while drilling data.The resistivity logging while drilling well logger be well logging while drilling series must join one of instrument.
Conventional electromagnetic wave resistivity logging instrument utilizes along axial arranged longitudinal coil system (antenna magnetic dipole direction is coaxial with the instrument) Formation Resistivity Measurement of instrument.Its measurement result is the general effect of ring well week formation resistivity basically, and is insensitive to the variation of formation resistivity on the orientation.
Studies show that in recent years, adopt resistivity logging while drilling logging instrumentation oblique or the transverse coil design not only can measure stratigraphic dip and wellbore medium anisotropy feature, can also effectively survey the zone of interest border, determine well from frontier distance, this is for accurate formation evaluation and geologic steering drilling is significant in real time.
Summary of the invention
The object of the invention is to propose a kind of transverse coil for logging instrumentation and forming method thereof, thereby improve accuracy and the integrality of well-log information.
On the one hand, according to transverse coil of the present invention, wherein transverse coil is along the hole or the groove continuous coiling that are formed on the logging instrumentation matrix, and the connection of the antenna of transverse coil also forms four sections semicircle antennas and four sections Longitudinal Antennas; Four sections semicircle antennas and four sections Longitudinal Antennas alternately arrange, so that whole magnetic dipole direction and logging instrumentation is axial vertical.
Preferably, wherein, four sections semicircle antennas are symmetrical arranged in couples, so that the magnetic dipole direction that forms is opposite in twos, overall magnetic dipole is zero; The overall magnetic dipole direction of four sections Longitudinal Antenna formation is axial vertical with logging instrumentation.
Preferably, be carved with and four sections equidistant grooves that Longitudinal Antenna is vertical at four sections Longitudinal Antenna places.But filling insulating medium in the equidistant grooves.
On the other hand, according to logging instrumentation of the present invention, it comprises logging instrumentation matrix and above-mentioned transverse coil.
On the one hand, the formation method according to transverse coil of the present invention may further comprise the steps again:
Form hole or groove at the logging instrumentation matrix;
Along the hole or groove continuous coiling antenna, form four sections semicircle antennas and four sections Longitudinal Antennas, thereby form transverse coil; Wherein the antenna of transverse coil is communicated with, and four sections semicircle antennas and four sections Longitudinal Antennas alternately arrange, so that whole magnetic dipole direction and logging instrumentation is axial vertical.
Preferably, further comprising the steps of: as to be carved with and four sections equidistant grooves that Longitudinal Antenna is vertical at four sections Longitudinal Antenna places.
Preferably, further comprising the steps of: filling insulating medium in equidistant grooves.
Preferably, wherein, be symmetrical arranged in couples four sections semicircle antennas, so that the magnetic dipole direction that forms is opposite in twos, overall magnetic dipole is zero; Four sections Longitudinal Antennas are set, so that its overall magnetic dipole direction is formed axial vertical with logging instrumentation.
Use is according to the anisotropy that can survey the stratum for the transverse coil of logging instrumentation of the present invention, thereby more effectively surveys zone of interest border and definite well from frontier distance, obtains more accurate, more complete measurement result.
Description of drawings
Fig. 1 is the schematic diagram according to transverse coil for logging instrumentation of the present invention and forming method thereof.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing embodiments of the invention are elaborated.Need to prove, in the situation that do not conflict, the embodiment among the application and the feature among the embodiment be combination in any mutually.
As shown in Figure 1, logging instrumentation wherein comprises logging instrumentation matrix 1, transverse coil 2 and equidistant grooves 3, forms hole or groove at logging instrumentation matrix 1.Hole or groove are communicated with and the inner antenna that is provided with transverse coil.Generally speaking, if logging instrumentation matrix 1 then forms the hole for non-magnetic drill collar, if logging instrumentation matrix 1 then forms groove for insulation mandrel.The antenna of transverse coil 2 is along groove or hole continuous coiling, so that the antenna of transverse coil 2 is communicated with and forms four sections semicircle antennas and four sections Longitudinal Antennas, semicircle antenna and Longitudinal Antenna be layout alternately, and its whole magnetic dipole direction is axial vertical with logging instrumentation.Specifically, four sections semicircle antennas are symmetrical arranged in couples, and the magnetic dipole direction of its formation is opposite in twos, and overall magnetic dipole is zero; The overall magnetic dipole direction of four sections Longitudinal Antennas is axial vertical with logging instrumentation.
As shown in Figure 1, semicircle antenna and Longitudinal Antenna alternately arrange, the antenna of transverse coil 2 along the hole or groove begun by a, and along a → b → c → d → e → f → g → h → i coiling, finish at the i place; A → b wherein, c → d, e → f, g → H-shaped become four sections semicircle antennas, and the magnetic dipole direction of its formation is opposite in twos, and overall magnetic dipole shows as zero; B → c, d → e, f → g, h → i forms four sections Longitudinal Antennas, and its overall magnetic dipole direction is axial vertical with instrument.Equidistant grooves 3 is perpendicular to four sections Longitudinal Antennas, and inside is insulating medium, and the space of its formation is conducive to passing through of the magnetic line of force, is convenient to the detection of signal.
Transverse coil for logging instrumentation provided by the invention has been avoided the restriction of logging instrumentation center pit, has formed with instrument shaft to vertical and centrosymmetric magnetic dipole.Use this transverse coil, and with the combinations such as longitudinal coil, oblique coil, can develop with boring orientation electromagnetic wave resistivity logging instrument or cable 3 D resistivity well logger.
Although the disclosed embodiment of the present invention as above, the embodiment that described content just adopts for the ease of understanding the present invention is not to limit the present invention.Technician in any the technical field of the invention; under the prerequisite that does not break away from the disclosed spirit and scope of the present invention; can do any modification and variation in the details that reaches of implementing in form; but scope of patent protection of the present invention still must be as the criterion with the scope that appending claims was defined.
Claims (9)
1. transverse coil, described transverse coil is characterized in that along the hole or the groove continuous coiling that are formed on the logging instrumentation matrix, and the antenna of described transverse coil is communicated with and also forms four sections semicircle antennas and four sections Longitudinal Antennas; Described four sections semicircle antennas and described four sections Longitudinal Antennas alternately arrange, so that whole magnetic dipole direction and logging instrumentation is axial vertical.
2. transverse coil according to claim 1 is characterized in that, described four sections semicircle antennas are symmetrical arranged in couples, so that the magnetic dipole direction that forms is opposite in twos, overall magnetic dipole is zero; The overall magnetic dipole direction that described four sections Longitudinal Antennas form is axial vertical with logging instrumentation.
3. transverse coil according to claim 1 is characterized in that, be carved with and described four sections equidistant grooves that Longitudinal Antenna is vertical at described four sections Longitudinal Antenna places.
4. transverse coil according to claim 3 is characterized in that, filling insulating medium in the described equidistant grooves.
5. logging instrumentation, it comprises each the described transverse coil among logging instrumentation matrix and the claim 1-4.
6. the formation method of a transverse coil is characterized in that, may further comprise the steps:
Form hole or groove at described logging instrumentation matrix;
Along described hole or groove continuous coiling antenna, form four sections semicircle antennas and four sections Longitudinal Antennas, thereby form described transverse coil; The antenna of wherein said transverse coil is communicated with, and described four sections semicircle antennas and described four sections Longitudinal Antennas alternately arrange, so that whole magnetic dipole direction and logging instrumentation is axial vertical.
7. formation method according to claim 6 is characterized in that, and is further comprising the steps of:
Be carved with and described four sections equidistant grooves that Longitudinal Antenna is vertical at described four sections Longitudinal Antenna places.
8. formation method according to claim 7 is characterized in that, and is further comprising the steps of:
Filling insulating medium in described equidistant grooves.
9. formation method according to claim 6 is characterized in that, is symmetrical arranged in couples described four sections semicircle antennas, so that the magnetic dipole direction that forms is opposite in twos, overall magnetic dipole is zero; Described four sections Longitudinal Antennas are set, so that its overall magnetic dipole direction is formed axial vertical with logging instrumentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103373955A CN102866428A (en) | 2012-09-12 | 2012-09-12 | Transverse coil for logging instrument and forming method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103373955A CN102866428A (en) | 2012-09-12 | 2012-09-12 | Transverse coil for logging instrument and forming method thereof |
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| CN102866428A true CN102866428A (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012103373955A Pending CN102866428A (en) | 2012-09-12 | 2012-09-12 | Transverse coil for logging instrument and forming method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367866A (en) * | 2013-08-06 | 2013-10-23 | 中国石油集团长城钻探工程有限公司钻井技术服务公司 | Magnetic dipole antenna and device for measuring orientated electrical resistivity of stratum |
| CN107871922A (en) * | 2016-09-27 | 2018-04-03 | 中国石油化工股份有限公司 | Direction transmitting antenna and the measurement apparatus with brill formation resistivity |
| CN108756864A (en) * | 2018-04-27 | 2018-11-06 | 中国石油天然气集团有限公司 | A kind of orientation electromagnetic resistivity imaging logging while drilling apparatus |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033673A (en) * | 1987-10-30 | 1989-07-05 | 施卢默格海外有限公司 | Well logging apparatus and method |
| US20010004212A1 (en) * | 1999-12-01 | 2001-06-21 | Schlumberger Technology Corporation | Shielding method and apparatus using transverse slots |
| US20020057210A1 (en) * | 2000-05-22 | 2002-05-16 | Frey Mark T. | Modified tubular equipped with a tilted or transverse magnetic dipole for downhole logging |
| US6727705B2 (en) * | 2000-03-27 | 2004-04-27 | Schlumberger Technology Corporation | Subsurface monitoring and borehole placement using a modified tubular equipped with tilted or transverse magnetic dipoles |
| US6788065B1 (en) * | 2000-10-12 | 2004-09-07 | Schlumberger Technology Corporation | Slotted tubulars for subsurface monitoring in directed orientations |
| US20040183538A1 (en) * | 2003-03-19 | 2004-09-23 | Tilman Hanstein | Structure for electromagnetic induction well logging apparatus |
| US20050231202A1 (en) * | 2002-05-07 | 2005-10-20 | Hiroshi Morita | Probe for NMR apparatus using magnesium diboride |
| US20120081122A1 (en) * | 2010-06-10 | 2012-04-05 | Frey Mark T | Combinations of axial and saddle coils to create the equivalent of tilted coils for directional resistivity measurements |
-
2012
- 2012-09-12 CN CN2012103373955A patent/CN102866428A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033673A (en) * | 1987-10-30 | 1989-07-05 | 施卢默格海外有限公司 | Well logging apparatus and method |
| US20010004212A1 (en) * | 1999-12-01 | 2001-06-21 | Schlumberger Technology Corporation | Shielding method and apparatus using transverse slots |
| US6727705B2 (en) * | 2000-03-27 | 2004-04-27 | Schlumberger Technology Corporation | Subsurface monitoring and borehole placement using a modified tubular equipped with tilted or transverse magnetic dipoles |
| US20020057210A1 (en) * | 2000-05-22 | 2002-05-16 | Frey Mark T. | Modified tubular equipped with a tilted or transverse magnetic dipole for downhole logging |
| US6788065B1 (en) * | 2000-10-12 | 2004-09-07 | Schlumberger Technology Corporation | Slotted tubulars for subsurface monitoring in directed orientations |
| US20050231202A1 (en) * | 2002-05-07 | 2005-10-20 | Hiroshi Morita | Probe for NMR apparatus using magnesium diboride |
| US20040183538A1 (en) * | 2003-03-19 | 2004-09-23 | Tilman Hanstein | Structure for electromagnetic induction well logging apparatus |
| US20120081122A1 (en) * | 2010-06-10 | 2012-04-05 | Frey Mark T | Combinations of axial and saddle coils to create the equivalent of tilted coils for directional resistivity measurements |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367866A (en) * | 2013-08-06 | 2013-10-23 | 中国石油集团长城钻探工程有限公司钻井技术服务公司 | Magnetic dipole antenna and device for measuring orientated electrical resistivity of stratum |
| CN107871922A (en) * | 2016-09-27 | 2018-04-03 | 中国石油化工股份有限公司 | Direction transmitting antenna and the measurement apparatus with brill formation resistivity |
| CN108756864A (en) * | 2018-04-27 | 2018-11-06 | 中国石油天然气集团有限公司 | A kind of orientation electromagnetic resistivity imaging logging while drilling apparatus |
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Application publication date: 20130109 |