CN2161722Y - Isotope releasing device for survey of borehole or well - Google Patents
Isotope releasing device for survey of borehole or well Download PDFInfo
- Publication number
- CN2161722Y CN2161722Y CN93223056U CN93223056U CN2161722Y CN 2161722 Y CN2161722 Y CN 2161722Y CN 93223056 U CN93223056 U CN 93223056U CN 93223056 U CN93223056 U CN 93223056U CN 2161722 Y CN2161722 Y CN 2161722Y
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- Prior art keywords
- hole
- release
- isotope
- radioisotope
- housing
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Abstract
The utility model relates to an isotope releasing device for the survey of a well, and a full shielding releasing device is formed to avoid radiation. The utility model is characterized in that a liquid in and out hole and a connecting hole (1, 33) are arranged on the joints (2, 31) at the two ends of the outer housing; the inner of the upper joint is cast with a lead shielding column 3, and a wire leading hole 6 is arranged on the column; a lead shielding casing (28) is embedded on the inner wall of the lower part of the outer housing, and the cavity of the casing is an isotope chamber (29). The electromagnetic pumps (20, 22, 23) are arranged between the isotope chamber and a hole (4); a plunger and a spring (14, 13) are arranged between two valve total bearings; a liquid balance hole (25) is arranged on the outer housing between the pump bodies and the isotope chamber (29); the lower part of the isotope chamber (29) is provided with a releasing piston (35). The purpose of releasing the isotope can be achieved through a pump injection pressing and pushing the piston.
Description
The utility model relates to the radioisotope logging release that is used for the airtight survey intake profile of water injection well in oil fields radioactivity, belongs to full-shield liquid control piston formula isotope releaser.
The motor-driven radioisotope logging release that oil-field flooding well surveying intake profile technology is used has JTS-I type and II type, uses motor-driven, by the deceleration device drive arm-tie of 3000:1, realizes that startup reaches the isotopic purpose of release.This release is complex structure not only, and is subjected to spatial constraints, makes designed motor power little; Owing to selected the deceleration device of 3000:1 for use, adopted 16 reduction gearing, resistance is big between each gear; Again because the little release gate of not opening that often causes of power of motor does not reach the isotopic purpose of release.There is the dead angle in radioisotope unit, and injected water volume is few during release, and it is not thorough that radioisotope unit discharges isotope, influences logging effect, makes troubles for ending and maintenance work, harm worker's health.There is certain interval owing to discharge between gate and the hole wall, in the process of going into the well and before surveying baseline, just has isotope from release, to leak in the well, cause and raise baseline, cause the well logging failure.This release does not possess shielding, in loading and unloading transportation and maintenance process human body is had radiation.
The purpose of this utility model is to avoid weak point in the above-mentioned prior art, and a kind of full-shield is provided, and presses the radioisotope logging release that discharges to the release room fluid injection by electromagnetic pump.
The purpose of this utility model can reach by the following technical programs, and it is that liquid inlet and outlet hole (4,32) and the pin-and-hole that is connected (1,33) are arranged on two joints of the circular housing that can be connected with other upper and lower parts; The lead screen post (3) that the casting system is arranged in top connection, leaded hole 6 on the post.Electromagnetic pump (20 is housed at upper case on by the interior shaft shoulder, 22,23,10-17), its leaded hole 7, middle pump body upper end, upper and lower single current valve assembly (10-12 is equipped with in center cavity portion, 15-17), plunger and spring (14,13) are arranged between two assemblies, be equipped with pump housing end following valve assembly bottom and tight screw blocks up 17, and fluid hole is arranged on the plug.Be embedded with lead screen cover 28 on the lower case inwall, the cover inner chamber is a radioisotope unit 29.Equilibrium liquid hole 25 is arranged on housing between electromagnetic pump and isotope; Friction tight release plunger 35 is equipped with in the lower end of radioisotope unit on housing the inner.
Each connection of thread is equipped with packing on the above-mentioned housing, can be at electromagnetic pump upper and lower part dress ring pad 18, glue ring pad 24; Inlet opening 4 downward inclined hole symmetries are 4 in the top connection, and the pin-and-hole on the upper and lower joint (1,32) can be symmetrical holes.Can adopt aluminium matter to bore empty release plunger (35), piston external diameter is a stairstepping, and packing 34 is housed between the outer casing inner wall.
The utility model is compared above-mentioned prior art and is had following effect: owing at the top of release lead screen post 3 is set, can eliminates and avoid occurring the higher phenomenon of " baseline " pulse value in test; Wall is embedded with lead screen cover 28 in the enclosure, constitutes the airtight radioisotope logging release of full-shield like this, can reduce greatly to the radiation of human body with to the pollution of environment, improves the authenticity of admission data.Be provided with balance pipe 25, the about 0.5mm of its diameter, well liquid enters radioisotope unit 29 through pump behind the release G.I.H, and with the variation of depth of setting, down-hole pressure improves constantly, make well liquid constantly enter radioisotope unit, excessive when being full of by balance pipe, until the indoor and outdoor pressure balance, because the little and excessive amount of balance aperture is less, make to be in radioisotope unit bottom isotope barium-131 and to be in closed state and not leak, can guarantee test request.Radioisotope unit 29 is with the footpath cylindrical shell, and isotope is discharged by electromagnetic pump fluid injection release plunger 35 in it, can all discharge, and indoor nothing is detained, and can not produce radiation and to the pollution of environment to human body when the rehabilitation instrument.
Fig. 1 is the utility model half cut-away view.
Below in conjunction with accompanying drawing will the utility model is described in further detail:
Shown in accompanying drawing, be the installation aspect, the shell of release is linked to be circular housing (2,21,27,31) by upper and lower joint (2,31) that is connected with other upper and lower parts and merogenesis shell (21,27) by screw thread.Liquid inlet and outlet hole (4,32) and the pin-and-hole (1,33) that is connected with other upper and lower part are arranged, in the shielding post 3 of 2 li useful plumbous casting systems of top connection, leaded hole 6 on the post on two joints (2,31) of shell (2,21,27,31).(20,22,23,10-17), there is winding 22 in its leaded hole 7, middle pump body 20 upper ends and yoke 23 is housed on the body portion winding frame externally to adorn electromagnetic pump in the shell 21 on the shaft shoulder; Upper and lower valve assembly (10-12 is equipped with in pump housing center cavity portion; 15-17), upper and lower valve assembly has upper and lower single current valve seat (10,14), single current valve (11,15), single current valve cover (12,16); Plunger 14 and spring 13 are arranged between two assemblies, and wherein the bottom of plunger 14 is following valve seat; Screw thread and tight plug 17 are equipped with in following valve cover 16 bottoms on pump housing lower end, fluid hole is arranged on the plug.On lower case 27 inwalls, be embedded with lead screen cover 28, mantle cavity footpath and the same internal diameter of shell, the chamber is a radioisotope unit 29.Between electromagnetic pump and the radioisotope unit in the liquid hole 25 that hydraulic pressure inside and outside the balance is arranged on the housing, the isotopic piston 35 of friction tight release is equipped with in the lower end of radioisotope unit on lower case the inner.For the ease of being connected with upper and lower other parts, two joints are made two drive connectors (2; 31; 36).
In order to seal, each connection of thread is equipped with packing (5,19,26,30) on the housing, electromagnetic pump upper and lower part dress ring pad 18 and glue ring pad 24.The downward inclined hole of inlet opening 4 ecto-entads in the top connection 2 can be established 4 symmetrical holes; Upper and lower joint (2,31) is gone up pin-and-hole (1,32) and be can be 2 symmetrical holes.In addition, can adopt aluminium matter to bore hollow round column piston 35, piston external diameter is that stairstepping is contained on lower case lower end and the inner chamber, and packing 34 is housed between the outer casing inner wall.
Isotope releaser arrives projected depth down with logging instrument.When need discharging isotope, inject liquid by electromagnetic pump in radioisotope unit, room pressure constantly increases piston 35 is pushed away radioisotope unit, with making isotope barium-131 go out radioisotope unit, reaches the purpose of release.
Claims (5)
1, a kind of radioisotope logging release that is used to enroll oil-field flooding well profile data, it is on can be with other, the circular housing (2,21,27,31) that lower member connects is gone up and is constituted, and it is characterized in that:
(1), liquid inlet and outlet hole (4,32) and the pin-and-hole that is connected (1,33) are arranged on two joints (2,31) of shell (2,21,27,31), the lead screen post (3) of casting system is arranged, on the post leaded hole (6) in top connection (2) lining;
(2), electromagnetic pump (20,22,23,10～17) is housed on the shaft shoulder in upper case (21), leaded hole (7), its middle pump body (20) upper end, upper and lower single current valve assembly (10～12 is equipped with in center cavity portion; 15～17), plunger and spring (14,13) are arranged between two assemblies, following valve assembly bottom has and tight plug (17) in pump housing end, and fluid hole is arranged on the plug;
(3), on lower case (27) inwall, be embedded with lead screen cover (28), mantle cavity is radioisotope unit (29);
(4), equilibrium liquid hole (25) is arranged on housing between electromagnetic pump and radioisotope unit;
(5), friction tight release plunger (35) is equipped with in the lower end of radioisotope unit on lower case the inner.
2, release as claimed in claim 1 is characterized in that: each connection of thread is equipped with packing (5,19,26,30) on the housing.
3, release as claimed in claim 1 is characterized in that: can be at electromagnetic pump upper and lower part dress ring pad (18), glue ring pad (24).
4, release as claimed in claim 1 is characterized in that: top connection (2) is gone up inlet opening (4) and be can be down 4 of inclined hole symmetries, and the pin-and-hole (1,32) on the upper and lower joint (2,31) can be symmetrical holes.
5, release as claimed in claim 1 is characterized in that: can adopt aluminium matter to bore empty release plunger (35), piston external diameter is a stairstepping, and packing (34) is housed between the outer casing inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93223056U CN2161722Y (en) | 1993-08-24 | 1993-08-24 | Isotope releasing device for survey of borehole or well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93223056U CN2161722Y (en) | 1993-08-24 | 1993-08-24 | Isotope releasing device for survey of borehole or well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2161722Y true CN2161722Y (en) | 1994-04-13 |
Family
ID=33801481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93223056U Expired - Fee Related CN2161722Y (en) | 1993-08-24 | 1993-08-24 | Isotope releasing device for survey of borehole or well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2161722Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362498A (en) * | 2013-08-08 | 2013-10-23 | 焦春红 | Miniature Ba-137m releaser for dual-tracer flow well logging |
| CN104093932A (en) * | 2011-09-14 | 2014-10-08 | 普拉德研究及开发股份有限公司 | Energy radiation generator with uni-polar voltage ladder |
| CN104514528A (en) * | 2013-09-27 | 2015-04-15 | 中国石油天然气股份有限公司 | Choke ware packing element dissolving agent input device |
| CN112901154A (en) * | 2021-02-23 | 2021-06-04 | 大庆油田有限责任公司 | Slow-solubility solid isotope source and well logging and interpretation method thereof |
-
1993
- 1993-08-24 CN CN93223056U patent/CN2161722Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104093932A (en) * | 2011-09-14 | 2014-10-08 | 普拉德研究及开发股份有限公司 | Energy radiation generator with uni-polar voltage ladder |
| US9805902B2 (en) | 2011-09-14 | 2017-10-31 | Schlumberger Technology Corporation | Energy radiation generator with bi-polar voltage ladder |
| US9805903B2 (en) | 2011-09-14 | 2017-10-31 | Schlumberger Technology Corporation | Energy radiation generator with uni-polar voltage ladder |
| US10102998B2 (en) | 2011-09-14 | 2018-10-16 | Schlumberger Technology Corporation | Energy radiation generator with bi-polar voltage ladder |
| CN103362498A (en) * | 2013-08-08 | 2013-10-23 | 焦春红 | Miniature Ba-137m releaser for dual-tracer flow well logging |
| CN104514528A (en) * | 2013-09-27 | 2015-04-15 | 中国石油天然气股份有限公司 | Choke ware packing element dissolving agent input device |
| CN104514528B (en) * | 2013-09-27 | 2017-04-05 | 中国石油天然气股份有限公司 | Choke ware packing element dissolving agent input device |
| CN112901154A (en) * | 2021-02-23 | 2021-06-04 | 大庆油田有限责任公司 | Slow-solubility solid isotope source and well logging and interpretation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |