CN87206291U - Isotope underwell releasing instrument - Google Patents
Isotope underwell releasing instrument Download PDFInfo
- Publication number
- CN87206291U CN87206291U CN198787206291U CN87206291U CN87206291U CN 87206291 U CN87206291 U CN 87206291U CN 198787206291 U CN198787206291 U CN 198787206291U CN 87206291 U CN87206291 U CN 87206291U CN 87206291 U CN87206291 U CN 87206291U
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- CN
- China
- Prior art keywords
- isotope
- pressure setting
- release
- releasing
- underwell
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Abstract
The utility model discloses an isotope underwell releasing instrument used for assaying the injection profile in the oilfield flooding well. The isotope underwell releasing instrument is characterized in that the isotope underwell releasing instrument has a liquid inlet hole and a releasing hole; a pressure setting valve and a carrier releasing valve are arranged on the isotope underwell releasing instrument; a pressure setting pin is blocked on a cut-off tool through the pressure setting valve. Using the underwell pressure, the pressure setting pin can be automatically cut, which reaches the purpose of releasing the isotope in the well with constant pressure and depth. By changing the past ground injecting isotope assay injection profile into the underwell releasing isotope assay injection profile, the isotope gas spectrometer instrument simplifies the construction technics, eliminates the environment pollution causing by the isotope on the ground, and the releasing success ratio reaches 100%.
Description
The utility model is a kind of down-hole releasing tool that isotopic carrier is housed, and it cooperates instrument to finish the intake profile of measuring water injection well in oil fields with isotope method jointly.
Oil field development period is to guarantee the steady output of oilwell high yield, adopts water injection technology.In order to give full play to the effect of water drive oil, should regularly carry out the monitoring of each layer suction situation, so that in time adjust each layer flood effectiveness to water injection well.To do the intake profile that tracer is measured water injection well with isotopic carrier for this reason.Because the isotopic carrier particle diameter is bigger, can not enter the stratum, can only filter and amass on the surface of water filling layer, what are directly proportional with filtering long-pending isotopic carrier the stratum water absorption, therefore measure the radioactive intensity of each layer, have correspondingly reflected the water absorbing capacity of each water filling layer.It is the anti-notes construction method that isotope is injected into well from ground that past is measured intake profile with isotope method.When carrying out this construction, remove oil pipe four times, and can not be with the water of former water flooding pump station.When isotope injects annular space between oil pipe and the sleeve pipe from ground, need with cementing truck setting-out in sleeve pipe, logging instrument is then measured in oil pipe, because variation has taken place in the water flooding regime when measuring, institute's survey data just can not reflect the water absorbing capacity of each layer objectively, and inject isotope from ground, also caused certain environment pollution.
Task of the present utility model provides a kind of down-hole release that isotopic carrier is housed.This release is provided with inlet opening and release aperture, the position of corresponding inlet opening is provided with the pressure setting valve, the position of corresponding release aperture is provided with the carrier relief valve, part between pressure setting valve and the carrier relief valve constitutes a normal pressure chamber of depositing isotopic carrier, have the pressure setting pin on the pressure setting valve, the pressure setting pin is stuck on the cutting off tool, utilize down-hole pressure, the pressure setting pin can cut off automatically, reach in well compression set decided at the higher level but not officially announced depths and discharge isotopic purpose, isotope is injected on the ground in past change down-hole release isotope into, thoroughly changed the construction technology of original isotopic measurement.Not only this instrument has been simplified construction technology greatly, eliminated the environment pollution that isotope causes on the ground, and use this instrument to measure not changing under the original annotation water condition, so well-log information has reflected the water absorbing capacity of each water filling layer truly, the data accuracy rate improves greatly, release is released into power and can reaches 100% through repeatedly improving.
Accompanying drawing 1 is the overall structure schematic diagram of isotope down-hole release.
Accompanying drawing 2 is that isotope down-hole release and logger are engaged in the down-hole work schematic diagram in when well logging.
Be described further below in conjunction with accompanying drawing: joint (2) is housed the top of down-hole release (1) as can be seen from accompanying drawing 1, the bottom is connected to plug (16), release (1) is provided with inlet opening (3), the position of corresponding inlet opening (3) is provided with pressure setting valve (7), the upper end of pressure setting valve (7) is at an angle to each other, in certain distance, be provided with the pressure pin-and-hole, the pin-and-hole that pressure setting pin (4) passes on the pressure setting valve (7) is stuck on the cutting off tool (5) of alloy steel, " O " RunddichtringO (6) is equipped with in the lower end of pressure setting valve (7), and " O " RunddichtringO (6) combines with the sealing surface of the valve seat of adjusting of release enclosure.Part between pressure setting valve (7) and the carrier relief valve (10) constitutes a normal pressure chamber (8) of depositing isotopic carrier, what release aperture (11) was corresponding is carrier relief valve (10), respectively there is one sealing ring (13) at the two ends of relief valve (10), there is position indication groove (17) centre of relief valve (10), during correct the installation, position indication groove (17) should align with the apparent position indication groove of release aperture (11) (12), relief valve (10) is by jump ring (9) and spring (14) location, part between relief valve (10) and the plug (16) constitutes a normal pressure chamber (23) again, is used for relief valve and moves down and be provided with.Plug (16) is provided with " O " RunddichtringO (15).
From accompanying drawing 2 as can be seen isotope down-hole release (1) be connected in the below of instrument (18), connect logging cable (19) on the logging instrument (18), cable passes high pressure sealing well head (20) and is wound on the logging winch through top sheave (21), lower sheave (22).
In specific implementation process, isotope down-hole release (1) and instrument (18) by cable (19) by high pressure sealing well head (20) G.I.H, release is except that the whole pressurized of shell, in the upper end of inlet place pressure setting valve (7) is that pressure setting pin (4) also bears high pressure, when release under reduced pressure, when being lowered into desired depth, water flooding pump station begins to boost, when set-pressure equals static pressure and water flooding pump station pressurization sum, pressure setting pin (4) pressurized, automatically being cut off cutter (5) cuts off, pressure setting valve (7) falls, water under high pressure enters in the normal pressure chamber (8) by inlet opening (3), at this moment, the pressure of water under high pressure is pushed relief valve (10) open again, makes that isotopic carrier in the normal pressure chamber (8) is disposable to be entered in the well through release aperture (11), has finished the purpose that isotope discharges in well compression set decided at the higher level but not officially announced depths.
Claims (5)
1, a kind of isotope down-hole release is made up of joint, plug and parts that isotopic carrier is housed, it is characterized in that release is provided with inlet opening and release aperture, and the position of corresponding inlet opening is provided with the pressure setting valve; The position of corresponding release aperture is provided with the carrier relief valve, and the part between pressure setting valve and the carrier relief valve constitutes a normal pressure chamber of depositing isotopic carrier; Constitute another normal pressure chamber between carrier relief valve and the plug, have the pressure setting pin on the pressure setting valve, the pin-and-hole that the pressure setting pin passes on the pressure setting valve is stuck on the cutting off tool of alloy steel; The centre position of carrier release is provided with position indication groove, and indication groove in position aligns with the apparent position indication of release aperture groove.
2, down-hole according to claim 1 release is characterized in that pressure setting valve lower end is equipped with " O " RunddichtringO.
3, down-hole according to claim 2 release is characterized in that carrier relief valve two ends respectively have sealing ring one.
4, down-hole according to claim 1 release is characterized in that the carrier relief valve is by jump ring and spring location.
5, down-hole according to claim 1 release is characterized in that plug is provided with " O " RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198787206291U CN87206291U (en) | 1987-04-14 | 1987-04-14 | Isotope underwell releasing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198787206291U CN87206291U (en) | 1987-04-14 | 1987-04-14 | Isotope underwell releasing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87206291U true CN87206291U (en) | 1988-01-20 |
Family
ID=4821890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN198787206291U Ceased CN87206291U (en) | 1987-04-14 | 1987-04-14 | Isotope underwell releasing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87206291U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993874A (en) * | 2014-04-21 | 2014-08-20 | 蒋瑜 | Impact type isotope releaser |
| 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 |
| CN105672995A (en) * | 2013-12-13 | 2016-06-15 | 中国工程物理研究院核物理与化学研究所 | Isotope labeling test method for water discharge part of high-water-content horizontal well |
-
1987
- 1987-04-14 CN CN198787206291U patent/CN87206291U/en not_active Ceased
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105672995A (en) * | 2013-12-13 | 2016-06-15 | 中国工程物理研究院核物理与化学研究所 | Isotope labeling test method for water discharge part of high-water-content horizontal well |
| CN105672995B (en) * | 2013-12-13 | 2018-05-01 | 中国工程物理研究院核物理与化学研究所 | High water cut horizontal well outlet part Bit Parity element labeled test method |
| CN103993874A (en) * | 2014-04-21 | 2014-08-20 | 蒋瑜 | Impact type isotope releaser |
| CN103993874B (en) * | 2014-04-21 | 2016-04-27 | 蒋瑜 | Impact type isotope releaser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |