CN103711475A - Novel dual-induction eight-lateral logging instrument - Google Patents
Novel dual-induction eight-lateral logging instrument Download PDFInfo
- Publication number
- CN103711475A CN103711475A CN201310751389.9A CN201310751389A CN103711475A CN 103711475 A CN103711475 A CN 103711475A CN 201310751389 A CN201310751389 A CN 201310751389A CN 103711475 A CN103711475 A CN 103711475A
- Authority
- CN
- China
- Prior art keywords
- coil
- induction
- debugging
- dual
- integrated
- 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.)
- Pending
Links
Images
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention relates to the technical field of logging instruments, and discloses a novel dual-induction eight-lateral logging instrument. The novel dual-induction eight-lateral logging instrument comprises a dual-induction eight-lateral electronic instrument, a prelaunch releasing nipple, a dual-induction coil system and an eight-lateral electrode. An integrated mandrel is adopted in the dual-induction coil system to form an integrated coil system, the dual-induction coil system is provided with a coil which is manufactured by a multistrand enamelled wire in a wound mode, a debugging compensating coil with an adjustable longitudinal position is arranged at the connection end of the dual-induction coil system and the eight-lateral electrode, an auxiliary compensating coil is arranged in an induction ILM receiving loop in the dual-induction coil system, and uniform conductive magnetic materials are installed in the integrated mandrel. The dual-induction coil system is an integrated coil system, so displacement and drifting caused by mechanical and heating movements are reduced; coaxial-cable transmission is adopted, interference signals in the transmission process are shielded sufficiently, all the coils are manufactured by multistrand enamelled wires in a wound mode, influences of the skin effect are eliminated, the debugging compensating coil is arranged so that the coil system can be stabilized, and the uniform conductive magnetic materials play a role in electromagnetic stabilization.
Description
Technical field
The present invention relates to logger technical field, relate in particular to a kind of novel dual induction lateolog-8 logging instrument.
Background technology
At the popular a word of logging community " induction is afraid of to float; sound wave is afraid of to jump ", the signal that refers to two induction instrument aratuses is due in a transmitting elect magnetic field for large space very, the impact in electricity, magnetic goods and materials and electromagnetic vector loop that is subject to transmitting coil system and receiving coil and is space, place is very large, be that self structure and environmental influence are large, easily with environment as temperature, pressure and oneself state etc. impact, produce large drift, be difficult to instrument to do stable, intrinsic " induction is afraid of to float " said.
Because induction instrument aratus difficulty is large, to the people of research often without achievement, abandoner is many for many years, really can further investigate and one-tenth person is very few to some extent.The influence factor of inductive coil series is a lot, when relating to a problem and having new thinking, often again without enough condition Verifications.Therefore this is a problem that systematicness is extremely strong, needs various aspects to consider to solve simultaneously simultaneously, effectively checking.
By long-term research and conclusion, the core technology that we have proposed two induction instrument aratuses is exactly the designing technique of coil array.Induction is afraid of that the drift of floating is mainly to disturb different causing by the temperature drift of coil array with loop under varying environment, therefore solves the stability problem of coil array and overcomes the most crucial technical problem that loop interference problem is two induction instrument aratuses.
For inductive coil series, because coil array inside exists the contour conductive magneto-conductive material of metal joint, transmission cable and coil array itself, receiving coil has been contributed to a signal, and this signal is along with environment changes, and is a unsettled interfering signal.Therefore first the object that designs coil array will reduce the signal magnitude of coil array self contribution, and its less important signal stabilization of self contributing that allows, does not change along with environmental change.
Domestic research on this essential problem does not almost have, and the circle of foreign technology all can not escaped in designing technique by general company.For from dealing with problems in essence, through concentrating on studies and testing for many years, the present invention has adopted the method for designing of distinct coil array, overcomes coil array mechanical deformation and electric property and changes the unstability causing, thereby reach the object that improves stability.These designs comprise a series of method and technology, international and domestic, all never have, and invention and practical application by these aspects, obtained good effect.
Summary of the invention
The present invention is directed to shortcoming in prior art, designed a kind of novel dual induction lateolog-8 logging instrument.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
A kind of novel dual induction lateolog-8 logging instrument, before comprising dual induction lateolog-8 electronics, transmitting, put pipe nipple, two inductive coil series and eight lateral electrodes, the integrated mandrel of the inner employing of two inductive coil series, forming integrated coil is, two induction coils are fastened and are provided with coil, coil adopts the coiling of multiply enamel-covered wire, and the link of two inductive coil series and eight lateral electrodes is provided with the adjustable debugging bucking coil of lengthwise position.Two inductive coil series inside adopts integrated mandrel, forms integrated coil to be, and machinery be can reduce and kinetic displacement and drift heated, thereby reach in different state lower coil, be the stable object of machine performance.Adopt multiply enamel-covered wire coiling, solved the impact that Kelvin effect is brought, and internal resistance is very little again, electric property is good, reach the object that coil array is stable, when needing the more coil design of the number of turns, adopt the strict outer frame design coordinating of same material, equidirectional arrangement and interior outside dimension, from one deck, bring up to two-layer.In addition in the design and debugging of coil array, self direct-coupled signal is often very large, this signal is our unwanted signal, it is but mixed in the middle of the signal that we need to detect, need in debugging, it be transferred to very little, in coil array, the minor variations of a certain turn coil position all has considerable influence to directly coupling signal, in processing, little deviation also can be brought the variation of this signal, for signal stabilization, we are provided with the adjustable debugging bucking coil of lengthwise position at the link of two inductive coil series and eight lateral electrodes, very easily by the directly coupling signal set to zero of debugging coil array, interfering with each other between coil self is reduced to minimum most zero, thereby reach the object that coil array is stable.
As preferably, in the inner ILM induction of two inductive coil series receiving loop, be provided with auxiliary bucking coil.Utilize a small auxiliary bucking coil of increase to be used for adjusting integrated radial geometric factor, make it the roomage response that reaches suitable, this design is in order to improve borehole compensation ability, reduce the impact of well mud on well logging result in instrument use procedure, make resulting resistivity value more close to actual formation true value.
As preferably, integrated mandrel is glass fiber reinforced plastic mandrel, and integrated mandrel comprises coil groove, cable channel, righting trough and mandrel maximum radius place, and coil winding is in coil groove.The glass fiber reinforced plastic mandrel that integrated mandrel adopts special technique to make, the feature of this glass fiber reinforced plastic is that longitudinal temperature line expansion factor is little, thereby makes the temperature drift of designed coil array little.In addition the conductive magneto-conductive compensative material of all coils groove, cable channel and installation etc. all on same core branch shaft material processing scribe and form, guarantee that each coil is all designed to be arranged in fixing coil groove, guarantee under action of environmental stresses, can not produce relative motion between coil and coil groove, so also guaranteed that effect of stress lower coil is that parameter is still stable outside.
As preferably, on integrated mandrel, be also connected with debugging bucking coil skeleton, debugging bucking coil skeleton is provided with debugging compensating line ring recess, and debugging bucking coil skeleton is fixed on integrated mandrel by landing nipple and bonding layer, and debugging bucking coil is wound in debugging compensating line ring recess.Debugging bucking coil is wound in debugging compensating line ring recess, debugging compensating line ring recess is located on the debugging bucking coil skeleton that can vertically move, the garbage signal that the upper-lower position of debugging bucking coil skeleton by adjustment differs instrument internal angle from 90 degree adjusts to zero, need to, outside coil, the conductive magneto-conductive material that is specifically designed to compensation being set again, not adjust rear landing nipple debugging bucking coil skeleton is fixed on integrated mandrel by bonding layer like this.
As preferably, integrated mandrel inside is provided with uniform conductive magnetism material.Various conductive magneto-conductive materials itself are contained in coil array inside, in fact at coil array internal magnetic field, be inhomogeneous, in order to reach relative uniform and stable in magnetic field, need to be at the uniform conductive magneto-conductive material of the inner placement of coil array, this materials processing becomes uniform shape and suitable length, be positioned in the groove of integrated mandrel internal proprietary, this material is placed in coil array inside from top to bottom whole space, realize the even equidirectional distribution of whole coil array power line and the magnetic line of force, play the stable effect of electromagnetism.
As preferably, between coil, between coil and debugging bucking coil, and before two inductive coil series and transmitting, put and between pipe nipple, all adopt coaxial cable transmission.Adopt special coaxial cable to carry out signal transmission, guarantee that signal shielding is good in the transmitting procedure of signal, signal reaches very high anti-interference rank.
As preferably, coaxial cable comprises electric shield layer, magnetic masking layer and signal transport layer from outside to inside successively, and electric shield layer is copper alloy electric shield layer, and magnetic masking layer is ferromagnetic magnetic masking layer.Coaxial outer is very thick Cu alloy material, there is good mechanical performance and good electric shield performance, the inferior outer ferromagnetic material that adopts, there is good magnetic property, also there are good mechanical performance and Corrosion Protection, therefore in alternating magnetic field environment, there is good magnetic shield performance.Centre is two-layer is exactly signal transport layer, and signal transport layer is as signal transmission passage, and signal, in transmitting procedure, is subject to the two-layer electric shield layer in outside and magnetic masking layer shielding, and interference free performance is fabulous.
The present invention, owing to having adopted above technical scheme, has significant technique effect:
The integrated mandrel of the inner employing of two inductive coil series of a kind of novel dual induction lateolog-8 logging instrument of the present invention, forming integrated coil is, can reduce machinery and the kinetic displacement of heating and drift, between coil, between coil and debugging bucking coil, and put between pipe nipple and all adopt coaxial cable to transmit before two inductive coil series and transmitting, interfering signal in transmitting procedure is fully masked, the coil of two inductive coil series all adopts the coiling of multiply enamel-covered wire, solved the impact of Kelvin effect, the link of two inductive coil series and eight lateral electrodes is provided with the adjustable debugging bucking coil of lengthwise position, the straight coupled signal of adjustable coil array is zero, reduce the mutual inductance between coil, reached the stable object of coil array, integrated mandrel inside is provided with uniform conductive magnetism material, play the stable effect of electromagnetism.Overcome prior art coil array unstable, loop such as is easily disturbed at the shortcoming.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The integrated core shaft structure schematic diagram of Fig. 2.
Fig. 3 is debugging bucking coil structural representation.
Fig. 4 is coaxial cable structure schematic diagram.
Fig. 5 is geometrical factor schematic diagram.
The toponym that in accompanying drawing, each number designation refers to is as follows: 1-dual induction lateolog-8 electronics, before 2-transmitting, put pipe nipple, 3-bis-inductive coil series, 4-eight lateral electrodes, 5-coil, 6-debugging bucking coil, 7-coil groove, 8-cable channel, 9-mandrel maximum radius place, 10-righting trough, 11-conductive magnetism material, 12-debugging compensating line ring recess, 13-integrated mandrel, 14-debugging bucking coil skeleton, 15-landing nipple, 16-bonding layer, 17-electric shield layer, 18-magnetic masking layer, 19-signal transport layer.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the present invention is described in further detail:
Embodiment 1
A kind of novel dual induction lateolog-8 logging instrument, as shown in Figure 1, before comprising dual induction lateolog-8 electronics 1, transmitting, put pipe nipple 2, two inductive coil series 3 and eight lateral electrodes 4, the integrated mandrel 13 of two inductive coil series 3 inner employing, forming integrated coil is, two inductive coil series 3 are provided with coil 5, and coil 5 adopts the coiling of multiply enamel-covered wire, and the link of two inductive coil series 3 and eight lateral electrodes 4 is provided with the adjustable debugging bucking coil 6 of lengthwise position.In two inductive coil series 3 induced inside ILM receiving loops, be provided with auxiliary bucking coil.Integrated mandrel 13 is glass fiber reinforced plastic mandrel, and as shown in Figure 2, integrated mandrel 13 comprises coil groove 7, cable channel 8, righting trough 10 and mandrel maximum radius place 9, and coil 5 is wound in coil groove 7.On integrated mandrel 13, be also connected with debugging bucking coil skeleton 14, as shown in Figure 3, debugging bucking coil skeleton 14 is provided with debugging compensating line ring recess 12, debugging bucking coil skeleton 14 is fixed on integrated mandrel 13 by landing nipple 15 and bonding layer 16, debugging bucking coil 6 is wound in debugging compensating line ring recess 12, and integrated mandrel 13 inside are provided with uniform conductive magnetism material 11.Between coil 5, coil 5 and debugging bucking coil 6 between, and put between pipe nipple 2 and all adopt coaxial cable to transmit before two inductive coil series 3 and transmitting, as shown in Figure 4, coaxial cable comprises electric shield layer 17, magnetic masking layer 18 and signal transport layer 19 from outside to inside successively, electric shield layer 17 is copper alloy electric shield layer, and magnetic masking layer 18 is ferromagnetic magnetic masking layer.
As shown in Figure 5, when B line is assisted bucking coil for being provided with in two inductive coil series induced inside ILM receiving loops, the integrated radial geometric factor schematic diagram that well is compensated, A line is common ILM integrated radial geometric factor curve.Integrated radial geometric factor represents that space material in infinitely long cylinder that the distance apart from instrument shaft center is radius r is with respect to the ratio of whole infinitely great spacing wave contribution, therefore, when r be infinity, G (r)=1.Somewhere r while being G (r)=0 when full remuneration.And somewhere r value when G (r)=0.5 is defined as investigation depth.
When the somewhere near axle center, as A curve G (r1)=0, B curve G (r2)=0, represents that the impact of General Instrument mud in radius is the well at r1 place compensates to zero.And through the geometrical factor of the modified induction of overcompensation at G (r2)=0, can the well that be r2 by the radius that is greater than r1 in mud influence compensate to zero.The method, by auxiliary bucking coil being set at ILM receiving coil loop, makes instrument geometrical factor from A curve toward B curvilinear motion, reaches the object of effective compensation well.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (7)
1. a novel dual induction lateolog-8 logging instrument, before comprising dual induction lateolog-8 electronics (1), transmitting, put pipe nipple (2), two inductive coil series (3) and eight lateral electrodes (4), it is characterized in that: the inner integrated mandrel (13) that adopts of two inductive coil series (3), forming integrated coil is, two inductive coil series (3) are provided with coil (5), coil (5) adopts the coiling of multiply enamel-covered wire, and two inductive coil series (3) are provided with the adjustable debugging bucking coil (6) of lengthwise position with the link of eight lateral electrodes (4).
2. a kind of novel dual induction lateolog-8 logging instrument according to claim 1, is characterized in that: in the inner ILM induction of two inductive coil series (3) receiving loop, be provided with auxiliary bucking coil.
3. a kind of novel dual induction lateolog-8 logging instrument according to claim 1, it is characterized in that: integrated mandrel (13) is glass fiber reinforced plastic mandrel, integrated mandrel (13) comprises coil groove (7), cable channel (8), righting trough (10) and mandrel maximum radius place (9), and coil (5) is wound in coil groove (7).
4. a kind of novel dual induction lateolog-8 logging instrument according to claim 3, it is characterized in that: on integrated mandrel (13), be also connected with debugging bucking coil skeleton (14), debugging bucking coil skeleton (14) is provided with debugging compensating line ring recess (12), it is upper that debugging bucking coil skeleton (14) is fixed on integrated mandrel (13) by landing nipple (15) and bonding layer (16), and debugging bucking coil (6) is wound in debugging compensating line ring recess (12).
5. a kind of novel dual induction lateolog-8 logging instrument according to claim 3, is characterized in that: integrated mandrel (13) inside is provided with uniform conductive magnetism material (11).
6. a kind of novel dual induction lateolog-8 logging instrument according to claim 1, it is characterized in that: between coil (5), between coil (5) and debugging bucking coil (6), and put between pipe nipple (2) and all adopt coaxial cable to transmit before two inductive coil series (3) and transmitting.
7. a kind of novel dual induction lateolog-8 logging instrument according to claim 6, it is characterized in that: coaxial cable comprises electric shield layer (17), magnetic masking layer (18) and signal transport layer (19) from outside to inside successively, electric shield layer (17) is copper alloy electric shield layer, and magnetic masking layer (18) is ferromagnetic magnetic masking layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310751389.9A CN103711475A (en) | 2013-12-30 | 2013-12-30 | Novel dual-induction eight-lateral logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310751389.9A CN103711475A (en) | 2013-12-30 | 2013-12-30 | Novel dual-induction eight-lateral logging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103711475A true CN103711475A (en) | 2014-04-09 |
Family
ID=50404780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310751389.9A Pending CN103711475A (en) | 2013-12-30 | 2013-12-30 | Novel dual-induction eight-lateral logging instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103711475A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5668475A (en) * | 1995-12-01 | 1997-09-16 | Schlumberger Technology Corporation | Induction logging sonde including a folded array apparatus having a plurality of receiver cowound coils and bucking coils |
| CN2575688Y (en) * | 2002-10-24 | 2003-09-24 | 胜利石油管理局测井公司 | Optical digital combined zoom lens control device for ultramicroscope |
| 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 |
| GB2407386A (en) * | 2003-10-15 | 2005-04-27 | Schlumberger Holdings | Induction measurements with reduced borehole effects |
| CN201397395Y (en) * | 2009-03-19 | 2010-02-03 | 杭州丰禾石油科技有限公司 | Integrated grooving coil system |
| CN201407031Y (en) * | 2009-04-02 | 2010-02-17 | 西安思坦仪器股份有限公司 | Dual induction laterolog-eight tool |
| CN102236107A (en) * | 2010-04-26 | 2011-11-09 | 中国石油天然气集团公司 | Lateral electrode system of petroleum well logging instrument |
| CN102400670A (en) * | 2010-09-07 | 2012-04-04 | 中国石油天然气集团公司 | Design method for three-dimensional induction logging instrument coil system |
-
2013
- 2013-12-30 CN CN201310751389.9A patent/CN103711475A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5668475A (en) * | 1995-12-01 | 1997-09-16 | Schlumberger Technology Corporation | Induction logging sonde including a folded array apparatus having a plurality of receiver cowound coils and bucking coils |
| CN2575688Y (en) * | 2002-10-24 | 2003-09-24 | 胜利石油管理局测井公司 | Optical digital combined zoom lens control device for ultramicroscope |
| 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 |
| GB2407386A (en) * | 2003-10-15 | 2005-04-27 | Schlumberger Holdings | Induction measurements with reduced borehole effects |
| CN201397395Y (en) * | 2009-03-19 | 2010-02-03 | 杭州丰禾石油科技有限公司 | Integrated grooving coil system |
| CN201407031Y (en) * | 2009-04-02 | 2010-02-17 | 西安思坦仪器股份有限公司 | Dual induction laterolog-eight tool |
| CN102236107A (en) * | 2010-04-26 | 2011-11-09 | 中国石油天然气集团公司 | Lateral electrode system of petroleum well logging instrument |
| CN102400670A (en) * | 2010-09-07 | 2012-04-04 | 中国石油天然气集团公司 | Design method for three-dimensional induction logging instrument coil system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7248177B2 (en) | Down hole transmission system | |
| US8072221B2 (en) | Externally guided and directed field induction resistivity tool | |
| US7319410B2 (en) | Downhole transmission system | |
| US6930652B2 (en) | Simplified antenna structures for logging tools | |
| US20100308832A1 (en) | Determining Correction Factors Representing Effects of Different Portions of a Lining Structure | |
| US20090160449A1 (en) | Antennas for Deep Induction Array Tools with Increased Sensitivities | |
| US8436618B2 (en) | Magnetic field deflector in an induction resistivity tool | |
| CN103038444A (en) | Transmission system for communication between downhole elements | |
| CN110187395A (en) | A kind of Zero flux shallow transient electromagnetic test coil and its test method | |
| CN111173504A (en) | Adjacent well distance electromagnetic while drilling large-range detection system without interference on adjacent well operation | |
| CN102053193A (en) | Current sensor adopting differential coil structure | |
| CN207677361U (en) | A kind of transmission line of electricity leakage current crusing robot | |
| EP2542922B1 (en) | Structure for magnetic field sensor for marine geophysical sensor streamer | |
| CN109915120B (en) | Correction method of resistivity logging while drilling system based on environmental factors | |
| CN105301460A (en) | Test method for research of transmission characteristics of ultrahigh frequency signals by partial discharge of transformer | |
| CN103711475A (en) | Novel dual-induction eight-lateral logging instrument | |
| CN201539248U (en) | Electromagnetic logging instrument for oilfield production well | |
| CN101140318B (en) | Syntony type radio frequency magnetic probe | |
| CN108072315A (en) | Differential voltage device formula linear movement pick-up | |
| CN203719673U (en) | Compensation coil system used for induction logging instrument | |
| US20070008075A1 (en) | Signal coupling device | |
| CN203716953U (en) | Adjustable coil system used for induction log tool | |
| CN104074502B (en) | A kind of mandrel for induction logging instrument | |
| CN202869594U (en) | Flexible multi-section admittance level meter without metrical dead zones | |
| CN105156099A (en) | Magnetic source beacon used for underground drilling positioning and use method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140409 |
|
| RJ01 | Rejection of invention patent application after publication |