CN2383972Y - Once plugging tubular column for exploration and stopping water - Google Patents
Once plugging tubular column for exploration and stopping water Download PDFInfo
- Publication number
- CN2383972Y CN2383972Y CN 99211383 CN99211383U CN2383972Y CN 2383972 Y CN2383972 Y CN 2383972Y CN 99211383 CN99211383 CN 99211383 CN 99211383 U CN99211383 U CN 99211383U CN 2383972 Y CN2383972 Y CN 2383972Y
- Authority
- CN
- China
- Prior art keywords
- track groove
- water
- tubing string
- control valve
- commutation
- 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 - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 238000001514 detection method Methods 0.000 claims description 24
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a once plugging tubular column technology for exploring and stopping water. An internal wall of a casing is equipped sequentially with a packer (13) and a water exploring and stopping order control valve (14) at intervals. An external wall of a one-way flow valve is equipped with an O-shaped sealing ring (5) and a cylinder (6). A valve seat (3) and a valve ball (4) are embedded in one side hole of the cylinder (6). An internal annular groove is a one-way oil inlet passage. The end of the cylinder (6) is equipped with a guide cap (2). A reverse control valve is installed on the rear end of the cylinder (6). A central pipe (1) is equipped with a reverse dowel (7), provided with a reverse control trail groove (11) and equipped internally with a spring (9). A connecting coupling (10) is packed by a protection sleeve (8). A water exploring switch and a water stopping switch can be controlled to open an oil layer and close a water layer with a sealing pressure of 20Mpa, which meets requirements of downhole oil production operation.
Description
The utility model belongs to the oil recovery downhole tool, particularly a kind of water detection, shutoff tubing string of water blockoff.
Adopt searching pipe column at present both at home and abroad, water plugging string is gone into the well for twice and is finished water detection and water-plugging technology measure respectively.Need twice of operation, duty cycle is long, operating cost is high, increases the instrument cost simultaneously.
The purpose of this utility model is to overcome above technical deficiency, and a kind of water detection, shutoff tubing string of water blockoff are provided, and finishes multilayer water detection, two kinds of technological measures of water blockoff, reduces operating cost, duty cycle one times, has reduced tool expense simultaneously.
Task of the present utility model is, water detection, shutoff tubing string of water blockoff is reservoir plugging quantity as required, at internal surface of sleeve pipe packer is installed at interval successively, look for, the water detection of water blockoff sequence control valve, shutoff tubing string of water blockoff, water detection, the O RunddichtringO is installed on the outer wall of the one-way flow valves of the sequence control valve portion of a shutoff tubing string of water blockoff, cylinder barrel, insert valve seat in the side opening of cylinder barrel, valve ball and cylinder barrel inner groove are unidirectional oil inlet passage, guiding cap is installed in the termination, and the reversing control valve of sequence control valve portion is in the cylinder barrel rear end, central tube is installed the commutation pin, have commutation control track groove, built-in spring, connecting box cupling is pressed by the sheath envelope.By down-hole water plugging string, and water detection, water blockoff sequence switch, connect on request and go into the well.By suppressing with packer set, to suppress by well head, follow procedure control is looked for, stifled sequence control valve opens and closes, and realizes changing between water detection and the water blockoff.
Specify with embodiment below in conjunction with accompanying drawing.
Fig. 1 shows water detection, the down-hole state diagram of a shutoff tubing string of water blockoff.
Fig. 2 shows water detection, water blockoff sequential control valve arrangement.
The A-A sectional drawing of Fig. 3 diagrammatic sketch 2.
The B-B sectional drawing of Fig. 4 diagrammatic sketch 2.
The commutation control track groove expanded view of Fig. 5 diagrammatic sketch 2.
The commutation control track groove expanded view of Fig. 6 diagrammatic sketch 2.
Among the figure, the 1-central tube; The 2-guiding cap; The 3-ball seat; The 4-steel ball; 5-O shape sealing ring; The 6-cylinder barrel; The 7-pin that commutates; The 8-sheath; The 9-spring; The 10-box cupling; 11-commutation control track groove; The long track groove of 11-1-; The short track groove of 11-2-; The 13-packer; The 14-sequence control valve
With reference to accompanying drawing 1,2, water detection, shutoff tubing string of water blockoff, reservoir plugging quantity is installed packer 13 at interval successively at internal surface of sleeve pipe, is looked for, blocks up sequence control valve 14 as required.
With reference to accompanying drawing 3,4,5,6, water detection, O RunddichtringO 5 is installed on the outer wall of the one-way flow valves that the sequence control valve of a shutoff tubing string of water blockoff is 14 ones, cylinder barrel 6, insert valve seat 3 in the side opening of cylinder barrel 6, valve ball 4 and cylinder barrel 6 inner grooves are unidirectional oil inlet passage, guiding cap 2 is installed in the termination, the reversing control valve that sequence control valve is 14 ones is in cylinder barrel 6 rear ends, central tube 1 is installed commutation pin 7, have commutation control track groove 11, built-in spring 9, connecting box cupling 10 is pressed by sheath 8 envelopes, the length of commutation control track groove 11, short track groove 11-1, the 11-2 dislocation is arranged, a left side, right-hand member sets up 7 commutation control track grooves 11 separately, commutation control track groove 11 angular intervals are 25 ° 40 ' 51 "; long; short track groove 11-1; connect by the inclined trajectory groove between the 11-2; that 7 commutation control of left end track groove 11 is 4 long track groove 11-1 and 3 short track groove 11-2; long track groove 11-1 length is for 2 times of short track groove 11-2, and is long, short track groove 11-1, angle of slope between the 11-2 is 20 °-60 °.
By commutation pin 7, commutation control track groove 11 and spring 9 are formed commutation controlling mechanism on the central tube 1, and commutation pin 7 slides in the commutation control track groove 11 of central tube 1.
When commutation pin 7 was positioned at the long track groove 11-1 top dead centre of commutation control track groove 11, reversing control valve was a closed condition; When commutation pin 7 was positioned at the short track groove 11-2 top dead centre of commutation control track groove 11, reversing control valve was a closed condition.
The course of work: after water detection, shutoff tubing string of water blockoff are gone into the well and put in place, suppress the seat envelope, when well head pressure reaches 15MPa, cylinder barrel 6 is at hydraulic action lower compression spring 9, commutation pin 7 is controlled track groove 11 as Fig. 5, shown in Figure 6 to right side long track groove 11-1 lower dead center along commutation, after the well head pressure release, by spring 9 energy storage, it is up to promote cylinder barrel 6, commutation pin 7 is along the short track groove of track groove commutation 11-2 top dead centre, and at this moment, the one-way flow valves fluid passage is communicated with central tube 1 fluid passage, with the interior liquid unilaterally connected of sleeve pipe, switch is an open mode in the oil pipe.Well head is suppressed once more, and as mentioned above, commutation pin 7 commutates to long track groove 11-1 top dead centre.One-way flow valves fluid passage and central tube 1 fluid passage are closed condition by disconnected separating of O-ring seals 5 envelopes.
Water detection, a shutoff tubing string of water blockoff important technological parameters:
Seat seal pressure 20MPa;
Commutation pressure 15MPa;
Water detection, water blockoff gauge tap are pressed design sequence;
Water detection, shutoff tubing string of water blockoff are according to test data, and control is looked for, water blocked switch, opens producing horizon, closes water layer, satisfies the down-hole oil production job requirements.
Claims (5)
1. one kind has at internal surface of sleeve pipe packer 13 is installed at interval successively, look for, the water detection of water blockoff sequence control valve 14, shutoff tubing string of water blockoff, it is characterized in that water detection, O RunddichtringO 5 is installed on the outer wall of the one-way flow valves that the sequence control valve of a shutoff tubing string of water blockoff is 14 ones, cylinder barrel 6, insert valve seat 3 in the side opening of cylinder barrel 6, valve ball 4 and cylinder barrel 6 inner grooves are unidirectional oil inlet passage, guiding cap 2 is installed in the termination, and the reversing control valve that sequence control valve is 14 ones is in cylinder barrel 6 rear ends, central tube 1 is installed commutation pin 7, have commutation control track groove 11, built-in spring 9, connecting box cupling 10 is pressed by sheath 8 envelopes.
2. water detection according to claim 1, shutoff tubing string of water blockoff, long and short track groove 11-1, the 11-2 dislocation of controlling track groove 11 that it is characterized in that commutating arranged, left and right end sets up 7 commutation control track grooves 11 separately, commutation control track groove 11 angular intervals are 25 ° 40 ' 51 ", connect by the inclined trajectory groove between long and short track groove 11-1, the 11-2.
3. water detection according to claim 2, shutoff tubing string of water blockoff is characterized in that 7 commutation control of left end track groove 11 is 4 long track groove 11-1 and 3 short track groove 11-2.
4. water detection according to claim 2, shutoff tubing string of water blockoff is characterized in that long track groove 11-1 length 2 times for short track groove 11-2.
5. water detection according to claim 2, shutoff tubing string of water blockoff is characterized in that the angle of slope between long and short track groove 11-1, the 11-2 is 20 °-60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99211383 CN2383972Y (en) | 1999-05-31 | 1999-05-31 | Once plugging tubular column for exploration and stopping water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99211383 CN2383972Y (en) | 1999-05-31 | 1999-05-31 | Once plugging tubular column for exploration and stopping water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2383972Y true CN2383972Y (en) | 2000-06-21 |
Family
ID=34004347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99211383 Expired - Lifetime CN2383972Y (en) | 1999-05-31 | 1999-05-31 | Once plugging tubular column for exploration and stopping water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2383972Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303310C (en) * | 2003-12-20 | 2007-03-07 | 陈琳 | Method for water searching and blocking for oil well |
| CN1317484C (en) * | 2003-09-19 | 2007-05-23 | 吴孝喜 | Cavity water sampling and generating method for oil well in production |
| CN103266867A (en) * | 2013-05-31 | 2013-08-28 | 中国石油集团川庆钻探工程有限公司 | Horizontal well water exploration valve |
-
1999
- 1999-05-31 CN CN 99211383 patent/CN2383972Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1317484C (en) * | 2003-09-19 | 2007-05-23 | 吴孝喜 | Cavity water sampling and generating method for oil well in production |
| CN1303310C (en) * | 2003-12-20 | 2007-03-07 | 陈琳 | Method for water searching and blocking for oil well |
| CN103266867A (en) * | 2013-05-31 | 2013-08-28 | 中国石油集团川庆钻探工程有限公司 | Horizontal well water exploration valve |
| CN103266867B (en) * | 2013-05-31 | 2015-10-21 | 中国石油集团川庆钻探工程有限公司 | Horizontal well water exploration valve |
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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 | ||
| CX01 | Expiry of patent term |