CN103195416A - Production well resistivity logging device - Google Patents
Production well resistivity logging device Download PDFInfo
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- CN103195416A CN103195416A CN2013101086838A CN201310108683A CN103195416A CN 103195416 A CN103195416 A CN 103195416A CN 2013101086838 A CN2013101086838 A CN 2013101086838A CN 201310108683 A CN201310108683 A CN 201310108683A CN 103195416 A CN103195416 A CN 103195416A
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Abstract
A production well resistivity logging device comprises a ground system connected with an underground logging deivce through a cable. The underground logging deivce comprises a centralizer located at two ends of the logging device. An upper polarizing coil is wound on the outer portion of an upper polarizing framework of an upper polarizing device and is connected with the output end of the an upper polarizing power supply, the upper polarizing power supply is connected with an upper polarizing detection unit, an emission control unit is connected with a magnetic field detection unit, and a receiving processing unit is connected with the magnetic field detection unit. A lower polarizing device symmetrical to the upper polarizing device and having the same structure with the upper polarizing deivce is arranged on the tail portion of the underground logging deivce. The upper polarizing device and the lower polarizing device are totally same in structure and are only reverse in connected-in current polarities that one polarizing device performs polarizing and the other polarizing device performs demagnetizing. The production well resistivity logging device ensures that a sleeve is not damaged in the measurement process and self characteristics of the sleeve are not affected after measurement, can fast detect characteristics of the stratum outside the sleeve, and has the advantages of being efficient, fast, convenient and free of contact.
Description
Technical field
The invention belongs to petroleum resources environment exploitation technical field, particularly a kind of producing well resistivity logging device of exploring at the outer stratum of field produces casing characteristic.
Background technology
Along with going deep into of oil-gas mining, a large amount of producing wells enter the middle and later periods of exploitation in succession, determine that remaining oil distribution feature, the exhausted index of assessment oil gas become the focus that present oil-gas field development is paid close attention to.Through casing resistivity logging is mainly measured the variation of the outer formation resistivity of producing well sleeve pipe, for monitoring oil reservoir DYNAMIC DISTRIBUTION, the research reservoir productivity is taken over, wellblock waterflooding effect, water out behavior, raising oil field production capacity, prolong oilfield life and have great significance and wide application prospect.
Traditional resistivity logging usually at be open hole well, in producing well, be subjected to the screening effect of high conductivity metal sleeve pipe, conventional electric logging method is difficult to realize the measurement of the outer formation resistivity of metal sleeve, and common TCR measuring method mainly contains transient electromagnetic method in electrode method and the well at present.
The electrode method mainly is by making up a kind of and sleeve pipe electrode in contact system, apply certain voltage at each electrode, and constitute the loop with ground electrodes, solve the electric current that flows into the stratum by the voltage drop of measuring different point-to-point transmissions on the sleeve pipe, and then obtain the resistivity on stratum according to the relation of electric current and voltage.Typical instrument has Muscovite ECOS TCR instrument, the CHFR double-channel cased hole formation resistivity logging instrument of Schlumberger company exploitation etc.The subject matter of this quasi-instrument is: because the electrical conductivity of sleeve pipe itself is than big several orders of magnitude of electrical conductivity on stratum; therefore when with the sleeve pipe electrode in contact stratum being applied emission electrode; overwhelming majority current drain is on sleeve pipe; have only very little one part of current to flow into the stratum; the corrosion of sleeve pipe in addition; the bonding quality of the outer cement of sleeve pipe; the influence of various factors such as natural potential on stratum itself; make signal to noise ratio very low; the well logging difficulty is bigger; backup owing to electrode must contact with sleeve pipe in addition; certainly will destroy sleeve pipe waxing topping, the noise ratio useful signal that the while traveling electrode causes is big by 10
4Doubly, for reducing thermoelectrical potential and friction electromotive force, instrument adopts a survey mode usually, and operating efficiency is lower.
" Chinese journal of scientific instrument " 09 phase paper in 2009 " sleeve pipe magnetization with cross the sleeve pipe media recognition " has been announced transient electromagnetic logging method in a kind of well, handle by the magnetization to the measured zone sleeve pipe, strengthen the penetration capacity that transmits in the well, but because magnetizing coil and transmitting coil are in same horizontal level section, magnetizing field is bigger to the influence of detection system, the extraction of logging signal, complex disposal process.
Chinese patent ZL200920247085.8 has announced a kind of field produces well electro magnetic logging apparatus, though magnetized spot and well logging coil array are separated, but do not consider the demagnetization problem after the sleeve pipe magnetization, owing to utilize in the logging operation the magnetic mark degree of depth on the logging cable as standard depth usually, and the down-hole casing residual magnetization is above behind the certain value, logging cable will be magnetized, and cause magnetic mark to identify, and then influence normal logging operation.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of producing well resistivity logging device, in guaranteeing measuring process, do not destroy sleeve pipe, when not influencing the sleeve pipe self-characteristic after measurement finishes, can finish the detection to the outer stratum of sleeve pipe characteristic fast, have efficient, quick, non-contacting characteristics.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of producing well resistivity logging device, comprise ground system 1, ground system 1 links to each other with the upper end of the centralizer 5 of down-hole well logging apparatus 3 by cable 2, down-hole well logging apparatus 3 comprises centralizer 5, goes up polarization power supply 6, down polarization power supply 7, go up polarization device 10, emission controlling unit 12, receive processing unit 13, magnetic field detection unit 14, following polarization device 17; Described centralizer 5 is arranged in the two ends of down-hole well logging apparatus 3 and contacts the assurance instrument with sleeve pipe 4 and is in the middle position at well; The described polarization device 10 of going up is in the middle position in pit shaft, the polarization skeleton 8 of going up of last polarization device 10 adopts high-permeability material, two ends symmetry up and down, middle skeleton is thinner, increased gradually to direction of both ends skeleton radius by the centre, profile is the double cone bodily form, the outside of last polarization skeleton 8 is twined and is gone up polarizing coil 9, last polarizing coil 9 links to each other with the output of the last polarization power supply 6 on last polarization device 10 tops, the input control end of last polarization power supply 6 links to each other with the polarization detecting unit 11 of going up that is positioned at polarization device 10 bottoms, last polarization detecting unit 11 bottoms are provided with emission controlling unit 12 and receive processing unit 13, emission controlling unit 12 links to each other with the transmitting coil system of magnetic field detection unit 14 by holding wire, receives processing unit 13 and links to each other by the receiver module of data wire with magnetic field detection unit 14; What be positioned at down-hole well logging apparatus 3 afterbodys is the following polarization device 17 identical with last polarization device 10 symmetries and structure, following polarization device 17 by under the detecting unit 15 that polarizes, under polarize skeleton 18 and down polarizing coil 16 constitute, under the detecting unit 15 that polarizes be positioned at down polarization skeleton 18 upper ends, the material of skeleton 18 and last polarization skeleton 8 polarizes down, structural form is identical, under skeleton 18 outsides of polarizing twining polarizing coil 16, following polarizing coil 16 links to each other with the output of the following polarization power supply 7 that is positioned at polarization device 10 tops, and the input control end of following polarization power supply 7 links to each other with the detecting unit 15 that polarizes down.
Described emission controlling unit 12 comprises No. four signal generators, pulse detection module and synchronization control module, wherein No. four signal generators are for generation of low frequency, than low frequency, intermediate frequency, high frequency four road pulse signals, respectively with low frequencies coil 20, than low frequencies coil 23, intermediate frequency transmitting coil 26, high-frequency emission coil 29 links to each other by holding wire, for generation of dynamic alternating magnetic field, can realize the detection to dielectric property in the different range, the pulse signal that No. four signal generators produce is through separately pulse detection module, produce pulse detection signals, act on synchronization module, produce the synchronous collection signal that is used for the corresponding receive path of control.
Described reception processing unit 13 comprises preposition pre-processing module, multi-channel A/D modular converter, the data buffering module, the FPGA control module, the DSP processing module, data transmission unit, data storage cell, preposition pre-processing module realizes gathering the filtering of signal, amplify and impedance matching, satisfy analog-to-digital conversion to the requirement of input signal, multi-channel A/D modular converter adopts high accuracy four road chip CS5524 of U.S. CRISTAL company, be follow-up manageable data signal with analog signal conversion, and be kept at the data buffering module, the DSP processing module is under the effect of FPGA control module, read the data in the data buffering module, and the data that reflect different detection ranges are carried out fusion treatment, result is kept at data storage cell, under the effect of FPGA control module, by data transmission unit the data in the data memory cell are carried out coding transmission.
Described magnetic field detection unit 14 comprised low frequency detect be 19, than low frequency detect be 22, intermediate frequency detect be 25, high-frequency detection is 28 totally four parts, it is 19 to be positioned at the top of magnetic field detection unit 14 that its medium and low frequency detects, be made of low frequencies coil 20 and low frequency receiver module 21, low frequencies coil 20 is arranged in the top of low frequency receiver module 21; Detecting than low frequency is that 22 to be positioned at that low frequency detects be 19 belows, comprise than low frequencies coil 23 with than 24 two parts of low frequency receiver module, intermediate frequency detect be 25 be positioned at than low frequency detect be 22 and high-frequency detection be in the middle of 28, formed by intermediate frequency transmitting coil 26 and intermediate frequency receiver module 27, high-frequency detection is 28 to be positioned at 14 bottoms, magnetic field detection unit, by high-frequency emission coil 29, high frequency receiver module 30 constitutes; Than low frequency detect be 22, intermediate frequency detect be 25, high-frequency detection is that in 28 arrange in each transmitting coil and the position of receiver module to detect with low frequency is 19 identical, different with detection system in the past is: what each group of this device detected receiver module employing in the system is highly sensitive Hall magnetic sensor.
Advantage of the present invention:
(1) because the present invention polarization device 10 and following polarization device 17 on the well logging apparatus two ends are provided with respectively, being different from existing document is: guarantee that the sleeve pipe to measured zone magnetizes before the producing well resistivity measurement, sleeve pipe to measured zone after measurement finishes carries out demagnetization, thereby both satisfied the measurement requirement, having guaranteed does not again influence the sleeve pipe self-characteristic after measuring end, reduced the influence to logging cable.
(2) owing to polarization device in the present invention 10 and following polarization device 17, structure is identical, just the polarity of the polarization current that feeds is opposite, so be different from existing document be: the present invention not only can be in the process that instrument is carried, implement polarization by 10 pairs of measured zone sleeve pipes of last polarization device, measurement finishes the back by 17 pairs of measured zone sleeve pipes enforcement of polarization device demagnetization down, also can be in the process that instrument descends, utilize 17 pairs of measured zone sleeve pipes enforcement of polarization device polarization down conversely, 10 pairs of measured zone sleeve pipes of polarization device are implemented demagnetization in the utilization, thereby realize two-way well logging, effectively improve logging efficiency.
(3) because emission controlling unit 12 of the present invention, reception processing unit 13 and magnetic field detection unit 14 do not exist circuit to be connected with last polarization device 10, following polarization device 17, therefore detecting unit of the present invention is what to be separated with the polarization part, can reduce polarization field like this to transmitting and receiving the influence of detecting unit.
(4) because of the present inventionly go up polarization skeleton 8, the skeleton 18 that polarizes all adopts high-permeability material down, what be different from well logging apparatus in the past is: on polarize skeleton 8, the skeleton 18 that polarizes all is the double cone bodily form in shape down, two ends symmetry up and down, the centre of polarization skeleton is thinner, increased gradually to direction of both ends skeleton radius by the centre, this kind structure more is conducive to form in the polairzed area fast stable strong polarization field.
Description of drawings
Fig. 1 is well logging apparatus structural representation of the present invention.
Fig. 2 is emission controlling unit 12 structural representations of the present invention.
Fig. 3 is reception processing unit 13 structural representations of the present invention.
Fig. 4 is magnetic field detection of the present invention unit 14 structural representations.
Fig. 5 is the structural representation of going up polarization skeleton 8 of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and operating principle are described in detail.
With reference to Fig. 1, a kind of producing well resistivity logging device, comprise ground system 1, ground system 1 links to each other with the top of the centralizer 5 of down-hole well logging apparatus 3 by cable 2, down-hole well logging apparatus 3 comprises centralizer 5, goes up polarization power supply 6, down polarization power supply 7, go up polarization device 10, emission controlling unit 12, receive processing unit 13, magnetic field detection unit 14, following polarization device 17; Described centralizer 5 is arranged in the two ends of down-hole well logging apparatus 3 and contacts the assurance instrument with sleeve pipe 4 and is in the middle position at well; The described polarization device 10 of going up is in the middle position in pit shaft, the polarization skeleton 8 of going up of last polarization device 10 adopts high-permeability material, profile is the double cone bodily form, two ends symmetry up and down, the centre of polarization skeleton is thinner, is increased gradually to direction of both ends skeleton radius by the centre, with reference to Fig. 5, this kind structure is convenient to the magnetic line of force and is concentrated on the polarisation unit two ends, helps to form stabilizing magnetic field at magnetized area; The outside of last polarization skeleton 8 is twined and is gone up polarizing coil 9, for generation of the electromagnetic field of sleeve pipe being implemented polarization; Last polarizing coil 9 links to each other with the output of the last polarization power supply 6 on last polarization device 10 tops, the input control end of last polarization power supply 6 links to each other with the polarization detecting unit 11 of going up that is positioned at polarization device 10 bottoms, last polarization detecting unit 11 is positioned at the bottom of polarization device 10, the real-time polarized state that is used for monitoring sleeve, and according to the sleeve pipe polarized state that monitors, the input intensity of control polarization current.Last polarization detecting unit 11 bottoms are provided with emission controlling unit 12 and receive processing unit 13, emission controlling unit 12 links to each other with the transmitting coil system of magnetic field detection unit 14 by holding wire, for magnetic field detection unit 14 provides pumping signal, receive processing unit 13 and link to each other by the receiver module of data wire with magnetic field detection unit 14; What be positioned at down-hole well logging apparatus 3 afterbodys is the following polarization device 17 identical with last polarization device 10 symmetries and structure, following polarization device 17 by under the detecting unit 15 that polarizes, under polarize skeleton 18 and down polarizing coil 16 constitute, under the detecting unit 15 that polarizes be positioned at down polarization skeleton 18 upper ends, the material of skeleton 18 and last polarization skeleton 8 polarizes down, structural form is identical, under skeleton 18 outsides of polarizing twining polarizing coil 16, following polarizing coil 16 links to each other with the output of the following polarization power supply 7 that is positioned at polarization device 10 tops, the input control end of following polarization power supply 7 links to each other with the detecting unit 15 that polarizes down, the remanent magnetism situation of 15 pairs of measured zone sleeve pipes of detecting unit of polarizing down detects assessment, and by polarization power supply 7 under the holding wire control, the intensity of demagnetization DC current to input is regulated, finish the polarization of measured zone sleeve pipe is handled, the following polarization skeleton 18 of following the polarization device 17 and down structure of polarizing coil 16 is corresponding identical with last polarization device 10, but what feed in the following polarizing coil 16 is reversing the current, the current opposite in direction in the sense of current and the last polarizing coil 9.
With reference to Fig. 2, emission controlling unit 12, comprise No. four signal generators, pulse detection module and synchronization control module, wherein No. four signal generators are for generation of low frequency, than low frequency, intermediate frequency, high frequency four road pulse signals, respectively with low frequencies coil 20, link to each other than low frequencies coil 23, intermediate frequency transmitting coil 26, high-frequency emission coil 29, produce dynamic alternating magnetic field, can realize the detection to the different range dielectric property.The pulse signal that No. four signal generators produce produces pulse detection signals through separately pulse detection module, acts on synchronization module, produces the synchronous collection signal that is used for the corresponding receive path of control.
With reference to Fig. 3, receive processing unit 13 and comprise preposition pre-processing module, multi-channel A/D modular converter, data buffering module, FPGA control module, DSP processing module, data transmission unit, data storage cell; Preposition pre-processing module achieves a butt joint and receives the filtering of gathering signal, amplify and impedance matching, satisfy analog-to-digital conversion to the requirement of input signal, multi-channel A/D modular converter adopts high accuracy four road chip CS5524 of U.S. CRISTAL company, be follow-up manageable data signal with analog signal conversion, and be kept at the data buffering module, the DSP processing module is under the effect of FPGA control module, read the data in the data buffering module, and the data that reflect different detection ranges are carried out fusion treatment, result is kept at data storage cell, under the effect of FPGA control module, by data transmission unit the data in the data memory cell are carried out coding transmission.
With reference to Fig. 4, magnetic field detection unit 14 has comprised four parts, is successively from top to bottom: low frequency detect be 19, than low frequency detect be 22, intermediate frequency detect be 25 and high-frequency detection be 28.Each detects transmitting coil and the corresponding receiver module of the corresponding different frequency of difference in the system, and transmitting coil is arranged in receiver module top.Wherein the high-frequency detection of magnetic field detection unit 14 is the 28 responsible damage status that detect the measured zone sleeve pipe, the intermediate frequency detection is country rock information such as 25 main detection jacket exterior cement gum deposits, detecting than low frequency is that 22 detection is primarily aimed at the stratum media in the outside short range of measured zone producing well, and low frequency to detect be 19 mainly to solve the detection of distal part formation characteristics around the producing well.
With reference to Fig. 5, last polarization skeleton 8 adopts high-permeability material, present the double cone bodily form in shape, two ends symmetry up and down, middle skeleton is thinner, increased gradually to direction of both ends skeleton radius by the centre, this kind structure more is conducive to form high-intensity magnetic field at the polarization device two ends, forms stabilizing magnetic field fast in the polairzed area.Specify: polarization skeleton 18 is identical with material and the architectural characteristic of last polarization skeleton 8 down.
Operating principle of the present invention is:
(1) down-hole well logging apparatus 3 is connected with ground system 1 by cable 2, and moves up and down by being pulled in the well of cable 2.In the last shift measurement process, polarization power supply 6 in the startup, inject the forward dc magnetizing current in the skeleton 8 outside last polarizing coils 9 that twine that upwards polarize, and produce stabilizing magnetic field, realize the polarization of sleeve pipe is handled.
(2) polarization detecting unit 11 in the startup, polarized state to nested domain pipe to be measured is monitored, and polarization power supply 6 is gone up in control, according to detected polarized state, regulate polarization current, the degree of polarization of sleeve pipe is reached measure require after, terrestrial system 1 is sent and is moved instruction, is driven on the instruments by cable 2 and carries;
(3) start emission controlling unit 12, emission controlling unit 12 is connected with magnetic field detection unit 14 by holding wire, for magnetic field detection unit 14 provides pumping signal, to be measured when zone of magnetic field detection unit 14 after hyperpolarization, launch the electromagnetic surveying signal of different frequency by each transmitting coil of magnetic field detection unit 14, implementation is to sleeve pipe, the cement country rock, the detection of the formation characteristics of outside different depth, gathering under the control of signal synchronously simultaneously, utilize each receiver module of magnetic field detection unit 14 that different electromagnetic response signals is gathered, through receiving processing unit 13, finish the separation to the response signal under the different frequency excitation, extract and fusion treatment;
(4) will handle the back result and upload ground system 1, draw log by software, form geologic information, for the judgement of the earth formation of the identification of formation characteristics and wellbore provides foundation.
(5) after measurement finishes, carry on the instrument, following polarization device 17 passes through measured zone, utilize polarization detecting unit 15 down, the existing polarized state of measured zone sleeve pipe is assessed, and by controlling polarization power supply 7 down, when regulating erasing current intensity, feed reverse direct current in the following polarizing coil 16 of polarization device 17 downwards, produce the polarization field opposite with last polarization device 10 directions, realize the demagnetization of measurement zone sleeve pipe is handled.
Above-mentioned operating principle has only been described the measuring process when putting forward on the instrument, operating principle of the present invention comprises the surveying work process when instrument moves down equally, namely when instrument moves down, start polarization power supply 7 down, inject reverse dc magnetization electric current in the polarizing coil 16 downwards, pass through the polarized state of polarization detecting unit 15 monitoring sleeves down simultaneously, and according to polarization power supply 7 under the real-time polarized state control of sleeve pipe, regulate polarization current, make the degree of polarization of sleeve pipe reach the measurement requirement, terrestrial system 1 is sent and is moved down instruction afterwards, and device moves down repetition (3), (4) measuring process; After measuring end, instrument continues to move down, last polarization device 10 passes through measured zone, polarization detecting unit 11 is assessed the existing polarized state of measured zone sleeve pipe in the utilization, and goes up polarization power supply 6 by control, regulate polarization current intensity, upwards feed the forward dc electricity in the polarizing coil 9, produce the polarization field opposite with following polarization device 17 directions, realize the demagnetization of measurement zone sleeve pipe is handled.
Claims (5)
1. producing well resistivity logging device, comprise ground system (1), ground system (1) links to each other with the upper end of the centralizer (5) of down-hole well logging apparatus (3) by cable (2), it is characterized in that, down-hole well logging apparatus (3) comprises centralizer (5), goes up polarization power supply (6), down polarization power supply (7), go up polarization device (10), emission controlling unit (12), receive processing unit (13), magnetic field detection unit (14), polarization device (17) down; Described centralizer (5) is positioned at the two ends of down-hole well logging apparatus (3) and contacts with sleeve pipe (4), guarantees that instrument is in the middle position in well; The described polarization device (10) of going up is in the middle position in pit shaft, the outside of going up polarization skeleton (8) of last polarization device (10) is twined and is gone up polarizing coil (9), last polarizing coil (9) links to each other with the output of the last polarization power supply (6) on last polarization device (10) top, the input control end of last polarization power supply (6) links to each other with the polarization detecting unit (11) of going up that is positioned at polarization device (10) bottom, last polarization detecting unit (11) bottom is provided with emission controlling unit (12) and receives processing unit (13), emission controlling unit (12) links to each other with the transmitting coil system of magnetic field detection unit (14) by holding wire, receives processing unit (13) and links to each other by the receiver module of data wire with magnetic field detection unit (14); What be positioned at down-hole well logging apparatus (3) afterbody is the following polarization device (17) identical with last polarization device (10) symmetry and structure, following polarization device (17) by under the detecting unit (15) that polarizes, under polarize skeleton (18) and down polarizing coil (16) constitute, under the detecting unit (15) that polarizes be positioned at down polarization skeleton (18) upper end, the material of skeleton (18) and last polarization skeleton (8) polarizes down, structural form is identical, under skeleton (18) outside of polarizing twining polarizing coil (16), following polarizing coil (16) links to each other with the output of the following polarization power supply (7) that is positioned at polarization device (10) top, and the input control end of following polarization power supply (7) links to each other with the detecting unit (15) that polarizes down.
2. a kind of producing well resistivity logging device according to claim 1, it is characterized in that, the following polarization skeleton (18) of going up polarization skeleton (8) and following polarization device (17) of last polarization device (10) all adopts high-permeability material, two ends symmetry up and down, middle skeleton is thinner, increased gradually to direction of both ends skeleton radius by the centre, present the double cone bodily form on the profile.
3. a kind of producing well resistivity logging device according to claim 1, it is characterized in that, described emission controlling unit (12), comprise No. four signal generators, pulse detection module and synchronization control module, wherein No. four signal generators are for generation of low frequency, than low frequency, intermediate frequency, high frequency four road pulse signals, respectively with low frequencies coil (20), than low frequencies coil (23), intermediate frequency transmitting coil (26), high-frequency emission coil (29) links to each other, produce dynamic alternating magnetic field, can realize the detection to the different range stratum, the pulse signal that No. four signal generators produce is through separately pulse detection module, produce pulse detection signals, act on synchronization module, produce the synchronous collection signal that is used for the corresponding receive path of control.
4. a kind of producing well resistivity logging device according to claim 1, it is characterized in that, described reception processing unit (13) comprises preposition pre-processing module, multi-channel A/D modular converter, the data buffering module, the FPGA control module, the DSP processing module, data transmission unit, data storage cell, preposition pre-processing module realizes gathering the filtering of signal, amplify and impedance matching, satisfy analog-to-digital conversion to the requirement of input signal, multi-channel A/D modular converter adopts high accuracy four road chip CS5524 of U.S. CRISTAL company, be follow-up manageable data signal with analog signal conversion, and be kept at the data buffering module, the DSP processing module is under the effect of FPGA control module, read the data in the data buffering module, and the data that reflect different detection ranges are carried out fusion treatment, result is kept at data storage cell, under the effect of FPGA control module, by data transmission unit the data of data memory cell are carried out coding transmission.
5. a kind of producing well resistivity logging device according to claim 1, it is characterized in that, described magnetic field detection unit (14) has comprised low frequency and has detected system (19), detects system (22), intermediate frequency detection system (25), high-frequency detection system (28) totally four parts than low frequency, its medium and low frequency detects the top that system (19) is positioned at magnetic field detection unit (14), be made of low frequencies coil (20) and low frequency receiver module (21), low frequencies coil (20) is arranged in the top of low frequency receiver module (21); Detect system (22) than low frequency and be positioned at low frequency detection system (19) below, comprise than low frequencies coil (23) with than (24) two parts of low frequency receiver module, intermediate frequency detects system (25) and is positioned at than in the middle of low frequency detection system (22) and the high-frequency detection system (28), formed by intermediate frequency transmitting coil (26) and intermediate frequency receiver module (27), high-frequency detection system (28) is positioned at magnetic field detection unit (14) afterbody, by high-frequency emission coil (29), high frequency receiver module (30) constitutes; Detecting system (22), intermediate frequency than low frequency, to detect system (25), high-frequency detection be that each transmitting coil and the position of detection module are arranged identically with low frequency detection module (19) in 28, and what each group detected receiver module employing in the system is highly sensitive Hall magnetic sensor.
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| CN201310108683.8A CN103195416B (en) | 2013-03-29 | 2013-03-29 | A kind of producing well resistivity logging device |
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| CN201310108683.8A CN103195416B (en) | 2013-03-29 | 2013-03-29 | A kind of producing well resistivity logging device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314562A (en) * | 2014-10-20 | 2015-01-28 | 中国石油天然气股份有限公司 | In-well electromagnetic centering device |
| CN104314562B (en) * | 2014-10-20 | 2017-01-04 | 中国石油天然气股份有限公司 | Electromagnetism erection device in a kind of well |
| CN107037491A (en) * | 2016-02-04 | 2017-08-11 | 中石化石油工程技术服务有限公司 | Electromagnetism receiving transducer between a kind of well |
| CN107725043A (en) * | 2017-09-23 | 2018-02-23 | 天津大学 | One kind crosses sleeve pipe formation resistivity method for continuous measuring |
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| US4472684A (en) * | 1980-07-24 | 1984-09-18 | Schlumberger Technology Corporation | Deep investigation induction logging with mirror image coil arrays |
| US5351755A (en) * | 1993-08-02 | 1994-10-04 | Texaco Inc. | Method and apparatus for establish the orientation of tools in a cased borehole |
| US5955884A (en) * | 1994-08-15 | 1999-09-21 | Western Atlas International, Inc. | Method and apparatus for measuring transient electromagnetic and electrical energy components propagated in an earth formation |
| CN2763508Y (en) * | 2005-01-29 | 2006-03-08 | 李兆龙 | Cable measurer for oil well depth |
| CN101581214A (en) * | 2009-03-23 | 2009-11-18 | 西安石油大学 | Transient electromagnetic logging device in through-casing well |
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2013
- 2013-03-29 CN CN201310108683.8A patent/CN103195416B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4472684A (en) * | 1980-07-24 | 1984-09-18 | Schlumberger Technology Corporation | Deep investigation induction logging with mirror image coil arrays |
| US5351755A (en) * | 1993-08-02 | 1994-10-04 | Texaco Inc. | Method and apparatus for establish the orientation of tools in a cased borehole |
| US5955884A (en) * | 1994-08-15 | 1999-09-21 | Western Atlas International, Inc. | Method and apparatus for measuring transient electromagnetic and electrical energy components propagated in an earth formation |
| CN2763508Y (en) * | 2005-01-29 | 2006-03-08 | 李兆龙 | Cable measurer for oil well depth |
| CN101581214A (en) * | 2009-03-23 | 2009-11-18 | 西安石油大学 | Transient electromagnetic logging device in through-casing well |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314562A (en) * | 2014-10-20 | 2015-01-28 | 中国石油天然气股份有限公司 | In-well electromagnetic centering device |
| CN104314562B (en) * | 2014-10-20 | 2017-01-04 | 中国石油天然气股份有限公司 | Electromagnetism erection device in a kind of well |
| CN107037491A (en) * | 2016-02-04 | 2017-08-11 | 中石化石油工程技术服务有限公司 | Electromagnetism receiving transducer between a kind of well |
| CN107725043A (en) * | 2017-09-23 | 2018-02-23 | 天津大学 | One kind crosses sleeve pipe formation resistivity method for continuous measuring |
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| Publication number | Publication date |
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| CN103195416B (en) | 2016-03-02 |
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