CN201071719Y - Device for sampling fluid from well - Google Patents
Device for sampling fluid from well Download PDFInfo
- Publication number
- CN201071719Y CN201071719Y CNU2007200914893U CN200720091489U CN201071719Y CN 201071719 Y CN201071719 Y CN 201071719Y CN U2007200914893 U CNU2007200914893 U CN U2007200914893U CN 200720091489 U CN200720091489 U CN 200720091489U CN 201071719 Y CN201071719 Y CN 201071719Y
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- CN
- China
- Prior art keywords
- piston rod
- main body
- fluid
- bottom sealing
- combustion bin
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a down-hole fluid sampling device, which overcomes the shortcomings with other sampling devices. The structure of the utility model is characterized in that the tube buttons of an upper joint and a lower joint are connected with an upper tube string and a lower tube string. The upper and lower joints are connected with a body through wire button; the body is provided with a sampling chamber. A piston rod and an upper sealing seat are arranged above the sampling chamber. The lower end of the sealing rod is integrated with the piston rod. The upper sealing seat is fixed on the body; a lower sealing seat is arranged on the lower end of the sampling chamber, and fixed on the body; an inverted valve is arranged in the upper sealing seat; a liquid channel is arranged below the upper joint; circumferential liquid input holes are above the upper end of the piston rod; circumferential liquid output holes are arranged in the lower sealing seat; a locking ring is arranged in the lower sealing seat. A combustion bin containing chemicals is arranged below the lower joint through wire button. A controller is connected with the combustion bin.
Description
One, technical field:
The utility model relates to a kind of downhole fluid sampler, especially downhole fluid sampler.
Two, background technology:
Present downhole sampler is to be the power drive seal with the electric energy; Be with piston motion be sealed into, fluid hole, frictional resistance is big; Be employing center overcurrent,, reduced area of passage owing to be subjected to structural limitations.
Three, summary of the invention:
The purpose of this utility model provides a kind of in structure, the downhole fluid sampler different on the type of drive with other sampler, the purpose of this utility model is achieved in that it is by top connection, fluid course, circumferential fluid hole, upper seal support, the piston rod upper end, ball-and-seat, main body, sampling cavity, bottom sealing socket, circumferential inlet opening, lock ring, the piston rod lower end, combustion bin, flammable chemicals, controller, lower contact is formed by connecting, the pipe thread of top connection and lower contact is respectively with last, lower tubular column connects, top connection and lower contact and main body screwed connection; In the middle of main body sampling cavity is arranged, piston rod upper end and upper seal support are arranged in the upper end of sampling cavity, piston rod lower end and piston rod upper end are one, and upper seal support is fixed on the main body; There is bottom sealing socket lower end at sampling cavity, and bottom sealing socket is fixed on the main body; Ball-and-seat is positioned at upper seal support; Fluid course is arranged below the top connection; Circumferentially fluid hole be positioned at the piston rod upper end above; Circumferential inlet opening is arranged in the bottom sealing socket; Lock ring is positioned at bottom sealing socket, and combustion bin in lower contact, has flammable chemicals with screwed connection in the combustion bin, and controller is connected with combustion bin.
Operating principle: the utility model links to each other with upper and lower tubing string with lower contact by top connection when going into the well, and circumferentially inlet opening and circumferential fluid hole all are in opening, and be fluid-mixing this moment in the sampling cavity.When oil well pump is started working, since circumferentially inlet opening open and with sampling interval combination of zones, under the oil well pump suction, sampling interval formation fluid enters sampling cavity, by ball-and-seat and circumferentially fluid hole outflow, the fluid of each interval enters to continue to make progress after the top tubing string mixes by fluid course and flows in the following tubing string of sampler then.After suction a period of time, guarantee that fluid in the sampling cavity all is the fluid of sampling interval and when reaching setting-up time, controller starts, ignite flammable chemicals, flammable chemicals produces gases at high pressure at combustion bin, promote piston rod lower end and piston rod upper end and move upward and locking, thereby close the fluid access way, the sample of fluid just is stored in the sampling cavity like this.After finishing sampling, trip out tubing string, oil well pump and sampler etc., carry out the stratified fluid sample analysis then.
Meaning of the present utility model is: be used to take out the actual sample of a certain interval fluid in down-hole, and then carry out sample analysis, obtain the sample composition of different intervals.As the Stratified Sampling in oil field, obtain the profit content of each interval exactly, and then take measure such as profile control transfer drive, improve oil well output.
Four, description of drawings:
Fig. 1 is the structural representation of downhole fluid sampler, among the figure 1, top connection 2, fluid course 3, circumferentially fluid hole 4, upper seal support 5, piston rod upper end 6, ball-and-seat 7, main body 8, sampling cavity 9, bottom sealing socket 10, circumferentially inlet opening 11, lock ring 12, piston rod lower end 13, combustion bin 14, flammable chemicals 15, controller 16, lower contact
Five, the specific embodiment:
In Fig. 1, the pipe thread of top connection 1 and lower contact 16 is connected with upper and lower tubing string respectively, and top connection 1 links to each other with main body 7 usefulness screw threads with lower contact 16, fluid course 2 is arranged below the top connection 1; Circumferentially fluid hole 3 be positioned at piston rod upper end 5 above; In the middle of main body 7 sampling cavity 8 is arranged, piston rod upper end 5 and upper seal support 4 are arranged in the upper end of sampling cavity 8, piston rod lower end 12 is an one with piston rod upper end 5, and upper seal support 4 is fixed on the main body 7; In the lower end of sampling cavity 8 bottom sealing socket 9 is arranged, bottom sealing socket 9 is fixed on the main body 7; Ball-and-seat 6 is positioned at upper seal support 4; Circumferential inlet opening 10 is arranged in the bottom sealing socket 9; Lock ring 11 is positioned at bottom sealing socket 9, and combustion bin 13 usefulness screwed connections have flammable chemical substance 14 in the combustion bin 13 in lower contact 16, and controller 15 is connected with combustion bin 13.
Claims (3)
1. downhole fluid sampler, it is by top connection (1), fluid course (2), circumferential fluid hole (3), upper seal support (4), piston rod upper end (5), ball-and-seat (6), main body (7), sampling cavity (8), bottom sealing socket (9), circumferential inlet opening (10), lock ring (11), piston rod lower end (12), combustion bin (13), flammable chemicals (14), controller (15), lower contact (16) is formed by connecting, it is characterized in that: the pipe thread of top connection (1) and lower contact (16) is respectively with last, lower tubular column connects, top connection (1) links to each other with screw thread with main body (7) with lower contact (16), fluid course (2) is arranged below the top connection (1); Circumferentially fluid hole (3) be positioned at piston rod upper end (5) above.
2. downhole fluid sampler according to claim 1, it is characterized in that: sampling cavity (8) is arranged in the middle of main body (7), piston rod upper end (5) and upper seal support (4) are arranged in the upper end of sampling cavity (8), piston rod lower end (12) is an one with piston rod upper end (5), and upper seal support (4) is fixed on the main body (7); In the lower end of sampling cavity (8) bottom sealing socket (9) is arranged, bottom sealing socket (9) is fixed on the main body (7); Ball-and-seat (6) is positioned at upper seal support (4); Circumferential inlet opening (10) is arranged in the bottom sealing socket (9); Lock ring (11) is positioned at bottom sealing socket (9).
3. downhole fluid sampler according to claim 1 is characterized in that: combustion bin (13) in lower contact (16), has flammable chemical substance (14) with screwed connection in the combustion bin (13), controller (15) is connected with combustion bin (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200914893U CN201071719Y (en) | 2007-08-15 | 2007-08-15 | Device for sampling fluid from well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200914893U CN201071719Y (en) | 2007-08-15 | 2007-08-15 | Device for sampling fluid from well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201071719Y true CN201071719Y (en) | 2008-06-11 |
Family
ID=39550277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200914893U Expired - Fee Related CN201071719Y (en) | 2007-08-15 | 2007-08-15 | Device for sampling fluid from well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201071719Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345456A (en) * | 2011-07-20 | 2012-02-08 | 铜陵中都矿山建设有限责任公司 | Deep water sampling and detecting device |
| CN103174414A (en) * | 2013-03-26 | 2013-06-26 | 中国地质调查局水文地质环境地质调查中心 | Sampling device for well-inside in-situ fluid in deep well |
| CN103821508A (en) * | 2012-11-16 | 2014-05-28 | 中国石油天然气股份有限公司 | Rapid electric sampling device for sectionalized production of horizontal well |
-
2007
- 2007-08-15 CN CNU2007200914893U patent/CN201071719Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345456A (en) * | 2011-07-20 | 2012-02-08 | 铜陵中都矿山建设有限责任公司 | Deep water sampling and detecting device |
| CN103821508A (en) * | 2012-11-16 | 2014-05-28 | 中国石油天然气股份有限公司 | Rapid electric sampling device for sectionalized production of horizontal well |
| CN103821508B (en) * | 2012-11-16 | 2016-05-11 | 中国石油天然气股份有限公司 | Horizontal well in segments is produced quick electric sampler |
| CN103174414A (en) * | 2013-03-26 | 2013-06-26 | 中国地质调查局水文地质环境地质调查中心 | Sampling device for well-inside in-situ fluid in deep well |
| CN103174414B (en) * | 2013-03-26 | 2016-07-13 | 中国地质调查局水文地质环境地质调查中心 | Original position fluid sampling apparatus in a kind of deep-well well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080611 Termination date: 20110815 |