CN107035367A - NMR while drilling instrument magnet - Google Patents
NMR while drilling instrument magnet Download PDFInfo
- Publication number
- CN107035367A CN107035367A CN201710294805.5A CN201710294805A CN107035367A CN 107035367 A CN107035367 A CN 107035367A CN 201710294805 A CN201710294805 A CN 201710294805A CN 107035367 A CN107035367 A CN 107035367A
- Authority
- CN
- China
- Prior art keywords
- magnet
- magnetic
- body assembly
- nmr
- poles
- 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.)
- Withdrawn
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000003292 glue Substances 0.000 claims abstract description 7
- 229910000521 B alloy Inorganic materials 0.000 claims abstract description 5
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 5
- 239000000956 alloy Substances 0.000 claims abstract description 5
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 3
- 239000010959 steel Substances 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 230000001235 sensitizing effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
Abstract
The invention discloses a kind of NMR while drilling instrument magnet, mainly constitute by top magnet body assembly, aerial coil, lower magnet and without the part of magnetic body four.Top magnet is identical with lower magnet structure, is combined by multiple annular permanent magnets, and the inner spindle made inside magnet by non-magnetic rustproof Steel material is connected, and uses high-temp glue embedding, and central ports cross mud.Annular permanent magnet uses samarium-cobalt alloy or Nd Fe B alloys, and axial charging, annular magnetic magnetic pole iron mutually combines magnet body assembly along (N is extremely to S poles, or S is extremely to N poles).Stable magnetic field intensity is high, without electric energy supply；Longitudinal frame is high, can recognize thin strate；Magnet body assembly size is small, it is easy to which manufacture and dismounting are safeguarded；Fill up domestic like product blank.
Description
Technical field
NMR while drilling instrument magnet of the present invention, belongs to oil well logging field.By detecting underground
Fluid Volume, fluid type, fluid properties in blowhole, and the phase interaction between fluid and the blowhole surface of solids
With porosity, constraint fluid volume, free fluid volume, permeability and the fluid behaviour quickly to obtain in reservoir, is reservoir
Accurate evaluation provides accurate data.The neutron density well logging of radioactive source can be substituted with nuclear magnetic resonance log is bored, drilling well is substantially reduced
Risk, data can instruct drilling well drilling direction to point to reservoir, improve drilling benefit.Magnet part uses permanent magnet, and magnetic field is steady
Determine intensity high, be the critical component of NMR while drilling instrument without electric energy supply.
Background technology
Current NMR while drilling instrument both domestic and external, the magnet of use pops one's head in into cylindrical type, and outside is antenna, interior
There is slurry channel in portion, and magnet is longer, and at 1.8 meters or so, such sensitizing range is also longer, and in 60cm or so, longitudinal frame is low；Together
Shi Yinwei magnet lengths are longer, and difficulty of processing is big.
The content of the invention
To solve the above problems, designing a kind of NMR while drilling instrument magnet, magnet is by upper and lower two cylindric magnetic
Body is combined, and magnet length is 35cm up and down, is combined easy for installation.Sensitizing range height is in 10cm or so, longitudinal frame
Height, can recognize thin strate.
To achieve the above object, the present invention uses following technical scheme：
NMR while drilling instrument magnet is main by top magnet body assembly, aerial coil, lower magnet and without magnetic body four
It is grouped into.
Wherein, top magnet is identical with lower magnet magnet structure, is combined by multiple annular permanent magnets, magnet
Inside whether there is the inner spindle connection that magnetic stainless steel material is made, and uses high-temp glue embedding, and mandrel endoporus can cross mud.
Annular permanent magnet uses samarium-cobalt alloy or Nd Fe B alloys, axial charging, the suitable (N of annular magnetic magnetic pole iron phase
Extremely to S poles, or S is extremely to N poles) it is combined into magnet body assembly.
Beneficial effects of the present invention：
1st, stable magnetic field intensity is high, without electric energy supply；
2nd, longitudinal frame is high, can recognize thin strate；
3rd, magnet body assembly size is small, it is easy to which manufacture and dismounting are safeguarded；
4th, domestic like product blank is filled up.
Brief description of the drawings
Fig. 1 is the magnet schematic diagram of the present invention；
Fig. 2 is the magnet general assembly schematic diagram of the present invention；
Fig. 3 is the ferrite schematic diagram of the present invention；
Fig. 4 is the magnetic field schematic diagram of the present invention.
Embodiment
Magnet body assembly is mainly made up of four parts：Top magnet body assembly 22, aerial coil 24, lower magnet 26 and without magnetic sheet
Body 21.As shown in figure 1, upper and lower magnet structure is identical, is combined by multiple annular permanent magnets 1, magnetic is whether there is inside magnet not
The inner spindle 2 that rust Steel material is made is connected, and uses high-temp glue embedding, and hydrophthalmia 25 crosses mud.Annulus magnet samarium-cobalt alloy or
Nd Fe B alloys, uses axial charging, as shown in figure 4, annular magnetic magnetic pole iron is mutually along (N is extremely to S poles or S extremely to N poles) group
Magnet body assembly is synthesized, upper and lower magnet body assembly length is 35cm, the diameter 5cm of central ports 25（6.75 inches of instruments of correspondence, its
Its diameter instrument can be changed）.
As shown in Fig. 2 magnet body assembly and instrument are coaxially arranged, top magnet body assembly 22, the distance one of lower magnet assembly 26
Set a distance is arranged on inside non magnetic drill collar 21, and top magnet body assembly 22, lower magnet assembly 26 are in its symmetrical centre apart from instrument
Outer wall 8-10cm position produces an even field region.Aerial coil 24 is formed with a copper conductor coiling, is served as a contrast below coil
There are multiple strip ferrites 23 to increase the energy of radiofrequency field.The appearance of aerial coil 24, which installs protective cover 27, to be used to protect antenna to exist
Downhole drill collar is not worn when rotating.Top magnet body assembly 22, lower magnet assembly 26 certain distance outside instrument are produced
One magnetic direction even field region vertical with instrument axis, aerial coil 24 produces a direction and instrument outside instrument
The magnetic field of diameter parallel, the two magnetic directions are orthogonal, and nuclear magnetic resonance is produced by the modulating action of aerial coil.
Annular magnet is that have samarium-cobalt alloy or Nd Fe B alloys sintering to be made, and axial charging is carried out, as shown in figure 4, N poles
On the mandrel that non-magnetic material processing is sleeved on to S poles, and high-temp glue embedding is used, as shown in figure 1, forming magnet body assembly.High-temp glue
Dosing technology can ensure that magnet and mandrel are integrally connected, and prevent from loosening influence Distribution of Magnetic Field, while magnet fragmentation is prevented, and then
Improve the reliability and stability of magnet.
It is that polylith ferrite is first fixed on non magnetic drill collar body first, it is desirable to arrange for the making of aerial coil
Uniformly, as shown in figure 3, ferrite section is trapezoidal, the groove 30 for holding line is machined with outer.Then in ferritic wire casing position
Put and twine aerial coil, twine 5-7 circles, then use high-temp glue embedding.Aerial coil two ends introduce drill collar body interior, and line end has pressure-bearing
Pin, carries out pressure-bearing packing.Then magnet body assembly is loaded inside non magnetic drill collar from two ends, reusable connector and drill collar connection crimping jail
Lean on.Aerial coil outer layer fills protective cover, for protecting aerial coil not frayed.
The features of the present invention is：
1st, magnet part has two magnet body assembly polarity staggered relatively, so magnet body assembly size is small, easy to manufacture and dismounting are tieed up
Shield；
2nd, the highly relatively low only 10cm in sensitizing range, can improve the longitudinal frame of instrument, it can be found that thin effective storage
Layer；
The technical principle described above for being presently preferred embodiments of the present invention and its being used, comes for those skilled in the art
Say, without departing from the spirit and scope of the present invention, any equivalent transformation based on the basis of technical solution of the present invention,
Simple replacement etc. is obvious to be changed, and is belonged within the scope of the present invention.
Claims (3)
1. NMR while drilling instrument magnet, it is characterised in that：Mainly by top magnet body assembly（22）, aerial coil（24）、
Lower magnet（26）With without magnetic body（21）Four parts are constituted.
2. NMR while drilling instrument magnet according to claim 1, it is characterised in that：Top magnet（22）And bottom
Magnet（26）Structure is identical, by multiple annular permanent magnets（1）Combine, made inside magnet by non-magnetic rustproof Steel material
Inner spindle（2）Connection, and use high-temp glue embedding, hydrophthalmia（25）Cross mud.
3. NMR while drilling instrument magnet according to claim 1, it is characterised in that：Annular permanent magnet（1）Adopt
With samarium-cobalt alloy or Nd Fe B alloys, axial charging, annular magnetic magnetic pole iron is mutually along (N is extremely to S poles, or S is extremely to N poles) group
Close and form magnet body assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710294805.5A CN107035367A (en) | 2017-04-28 | 2017-04-28 | NMR while drilling instrument magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710294805.5A CN107035367A (en) | 2017-04-28 | 2017-04-28 | NMR while drilling instrument magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107035367A true CN107035367A (en) | 2017-08-11 |
Family
ID=59537236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710294805.5A Withdrawn CN107035367A (en) | 2017-04-28 | 2017-04-28 | NMR while drilling instrument magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107035367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565087A (en) * | 2018-03-05 | 2018-09-21 | 中国石油天然气股份有限公司 | NMR logging instrument and its nuclear magnetic resonance permanent magnet |
| CN110058320A (en) * | 2019-04-28 | 2019-07-26 | 吉林大学 | A kind of adjustable active field nuclear magnetic resonance log probe of detecting area and its detection method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5610522A (en) * | 1993-09-30 | 1997-03-11 | Commissariat A L'energie Atomique | Open magnetic structure including pole pieces forming a V-shape threbetween for high homogeneity in an NMR device |
| US5757186A (en) * | 1996-02-23 | 1998-05-26 | Western Atlas International, Inc. | Nuclear magnetic resonance well logging apparatus and method adapted for measurement-while-drilling |
| US5959453A (en) * | 1997-10-29 | 1999-09-28 | Western Atlas International, Inc. | Radial NMR well logging apparatus and method |
| CN1248705A (en) * | 1998-03-03 | 2000-03-29 | 安娜钻机国际有限公司 | Nuclear magnetic resonance device and method for generating axially symmetric magnetic field with straight line outline line in resonance area |
| US6247542B1 (en) * | 1998-03-06 | 2001-06-19 | Baker Hughes Incorporated | Non-rotating sensor assembly for measurement-while-drilling applications |
| CN1471489A (en) * | 2000-10-26 | 2004-01-28 | 国际壳牌研究有限公司 | Device for transforting particles of magnetic material |
| CN1700371A (en) * | 2004-05-18 | 2005-11-23 | 北京泰杰磁电研究所 | Magnetic resonant image-forming magnetic body and forming method thereof |
| CN101001035A (en) * | 2006-01-13 | 2007-07-18 | 台达电子工业股份有限公司 | Three-phase contrarotating electric machine and fan |
| CN102650208A (en) * | 2012-05-04 | 2012-08-29 | 中国石油大学(北京) | Nuclear magnetic resonance logger probe while drilling and nuclear magnetic resonance logger while drilling |
| CN105601483A (en) * | 2016-01-29 | 2016-05-25 | 温州医科大学 | Synthetic method of medical intermediate 1,4-diphenyl butanedione |
| CN206942754U (en) * | 2017-04-28 | 2018-01-30 | 北京捷威思特科技有限公司 | NMR while drilling instrument magnet |
-
2017
- 2017-04-28 CN CN201710294805.5A patent/CN107035367A/en not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5610522A (en) * | 1993-09-30 | 1997-03-11 | Commissariat A L'energie Atomique | Open magnetic structure including pole pieces forming a V-shape threbetween for high homogeneity in an NMR device |
| US5757186A (en) * | 1996-02-23 | 1998-05-26 | Western Atlas International, Inc. | Nuclear magnetic resonance well logging apparatus and method adapted for measurement-while-drilling |
| US5959453A (en) * | 1997-10-29 | 1999-09-28 | Western Atlas International, Inc. | Radial NMR well logging apparatus and method |
| CN1248705A (en) * | 1998-03-03 | 2000-03-29 | 安娜钻机国际有限公司 | Nuclear magnetic resonance device and method for generating axially symmetric magnetic field with straight line outline line in resonance area |
| US6247542B1 (en) * | 1998-03-06 | 2001-06-19 | Baker Hughes Incorporated | Non-rotating sensor assembly for measurement-while-drilling applications |
| CN1471489A (en) * | 2000-10-26 | 2004-01-28 | 国际壳牌研究有限公司 | Device for transforting particles of magnetic material |
| CN1700371A (en) * | 2004-05-18 | 2005-11-23 | 北京泰杰磁电研究所 | Magnetic resonant image-forming magnetic body and forming method thereof |
| CN101001035A (en) * | 2006-01-13 | 2007-07-18 | 台达电子工业股份有限公司 | Three-phase contrarotating electric machine and fan |
| CN102650208A (en) * | 2012-05-04 | 2012-08-29 | 中国石油大学(北京) | Nuclear magnetic resonance logger probe while drilling and nuclear magnetic resonance logger while drilling |
| CN105601483A (en) * | 2016-01-29 | 2016-05-25 | 温州医科大学 | Synthetic method of medical intermediate 1,4-diphenyl butanedione |
| CN206942754U (en) * | 2017-04-28 | 2018-01-30 | 北京捷威思特科技有限公司 | NMR while drilling instrument magnet |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565087A (en) * | 2018-03-05 | 2018-09-21 | 中国石油天然气股份有限公司 | NMR logging instrument and its nuclear magnetic resonance permanent magnet |
| CN108565087B (en) * | 2018-03-05 | 2021-01-01 | 中国石油天然气股份有限公司 | Nuclear magnetic resonance logging instrument and nuclear magnetic resonance permanent magnet thereof |
| CN110058320A (en) * | 2019-04-28 | 2019-07-26 | 吉林大学 | A kind of adjustable active field nuclear magnetic resonance log probe of detecting area and its detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170811 |
|
| WW01 | Invention patent application withdrawn after publication |