CN202325425U - Combined-operation oil-testing string for realizing two-layer fracturing by using immobile string of oil-gas well and rapid flowback production acquisition by hydraulic pump - Google Patents
Combined-operation oil-testing string for realizing two-layer fracturing by using immobile string of oil-gas well and rapid flowback production acquisition by hydraulic pump Download PDFInfo
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- CN202325425U CN202325425U CN2011204625598U CN201120462559U CN202325425U CN 202325425 U CN202325425 U CN 202325425U CN 2011204625598 U CN2011204625598 U CN 2011204625598U CN 201120462559 U CN201120462559 U CN 201120462559U CN 202325425 U CN202325425 U CN 202325425U
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- oil
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- hydraulic pump
- fracturing
- pressure break
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Abstract
The utility model relates to a combined-operation oil-testing string for realizing two-layer fracturing by using immobile string of oil-gas well and rapid flowback production acquisition by hydraulic pump. The combined-operation oil-testing string for realizing two-layer fracturing by using the immobile string of the oil-gas well and the rapid flowback production acquisition by the hydraulic pump is characterized in that an oil tube is in threaded connection with a fracturing hydraulic pump cylinder (1); the outer wall of the oil tube below the fracturing hydraulic pump cylinder (1) is sheathed with a support rubber cup (2); the oil tube below the support rubber cup (2) is connected with a Y241 large-drift diameter fracturing packer (3); the oil tube below the Y241 large-drift diameter fracturing packer (3) is in the threaded connection with a pressure gage support cylinder (4); and the lower end of the pressure gage support cylinder (4) is in the threaded connection with a control switch (5), a Y341 large-drift diameter fracturing packer (6), a seal head (7) and a bottom switch (8) in sequence. By utilizing the string, separate-layer fracturing can be realized on a target layer only by lowering the string for one time in the fracturing process of the oil-gas well, and moreover, on the premise of the immobile string, the fracturing-post rapid flowback production acquisition is realized through the hydraulic pump so as to achieve the goal of meeting the production requirement. The combined-operation oil-testing string for realizing two-layer fracturing by using the immobile string of the oil-gas well and the rapid flowback production acquisition by the hydraulic pump is high in economic efficiency and practical applicability.
Description
Technical field
The utility model relates to oil gas well formation testing field, belong to a kind of two-layer pressure break of oil gas well fixed tubular column and hydraulic pump fast the row of returning ask Congress of Industrial Organizations to make the formation testing tubing string.
Background technology
Fracturing is to transform one of effective method of oil-gas Layer.With the two-layer technique of improvement of usual employing is successively pressure break, the method for upper lifting pipe post successively; Again be lowered to discharge opeing after pressure break is accomplished and ask the product tubing string, this arts demand repeatedly plays lower tubular column, long construction period; Expense is high; Cause ground pollution easily, and pit shaft liquid soaks the stratum for a long time, be prone to secondary pollution is caused on the stratum.
Summary of the invention
In order to overcome the deficiency that exists in the prior art; The utility model provide a kind of two-layer pressure break of oil gas well fixed tubular column and hydraulic pump fast the row of returning ask Congress of Industrial Organizations to make the formation testing tubing string; Utilize this tubing string can realize the oil gas well in fracturing process only down an one-trip string target zone is realized separate stratum fracfturing, and under the prerequisite of fixed tubular column, after realizing pressing through hydraulic pump fast the row of returning ask product; Satisfy the purpose of production requirement, have good and economic, practicality.
The technical scheme that the utility model is taked is: this two-layer pressure break of oil gas well fixed tubular column and the hydraulic pump row of returning fast ask Congress of Industrial Organizations to make the formation testing tubing string; The pressure break that has been threaded on oil pipe hydraulic pump pump barrel; Be with holder rubber bowl on the oil-pipe external wall of pressure break hydraulic pump pump barrel below; Be connected with the big latus rectum pressure break of Y241 packer on the oil pipe of holder rubber bowl below; The manometer that has been threaded on the oil pipe of the big latus rectum pressure break of Y241 packer below, manometer lower end be threaded successively gauge tap, the big latus rectum pressure break of Y341 packer, seal head, bottom switch are connected with sliding sleeve through cutting off pin in the bottom switch.
The beneficial effect of the utility model is:
(1) can realize that fixed tubular column carries out the separate stratum fracfturing construction from bottom to top to two target zones, with strong points to the target zone measures to reform;
(2) fixed tubular column can accomplish simultaneously separate stratum fracfturing and fast the row of returning ask and produce construction, reduced operating cost, safety, reliable;
(3) target zone is implemented separate stratum fracfturing and finish, can realize that the row of returning asks product fast, the secondary pollution of having avoided fracturing fluid that the stratum is caused, the data of asking for is true more, reliable;
(4) can realize pressure break and the row's of returning overall process down-hole pressure monitoring;
(5) big latus rectum pressure break packer adopts hydraulic base sealedly, and to deep reservoir layering measures to reform, the seat envelope is convenient and reliable, on carry deblocking, can satisfy fixed tubular column separate stratum fracfturing and hydraulic pump and return the requirement that Volleyball Association makes tubing string fast.
Description of drawings:
Fig. 1 is the structural representation of the utility model
Fig. 2 is the structural representation of gauge tap 5 in the accompanying drawing 1
Fig. 3 is the structural representation of pressure break hydraulic pump pump barrel 1 in the accompanying drawing 1
Fig. 4 is the structural representation of seal head 7 in the accompanying drawing 1.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is described further:
Shown in figure; This two-layer pressure break of oil gas well fixed tubular column and the hydraulic pump row of returning fast ask Congress of Industrial Organizations to make the formation testing tubing string; The pressure break that has been threaded on oil pipe hydraulic pump pump barrel 1; Be with holder rubber bowl 2 on the oil-pipe external wall of pressure break hydraulic pump pump barrel 1 below, be connected with the big latus rectum pressure break of Y241 packer 3 on the oil pipe of holder rubber bowl 2 belows, manometer 4 has been threaded on the oil pipe of the big latus rectum pressure break of Y241 packer 3 belows; Manometer 4 lower ends be threaded successively gauge tap 5, the big latus rectum pressure break of Y341 packer 6, seal head 7, bottom switch 8 are connected with sliding sleeve through cutting off pin in the bottom switch 8.Gauge tap 5 comprises sandblast body 14; Sandblast body 14 inwalls are fixed with sliding sleeve 18 by shear pin 19; Be provided with rope socket head 15 in the control volume 18; Be provided with slip-off preventing seal 17 between control volume 18 and the rope socket head 15, need be when being provided with 5 its effects of seal 16. gauge taps between control volume 18 and the sandblast body 14 and being pressure break lower floor in the shutoff of upper strata, i.e. the upper strata state that keeps shut.When the intact lower floor of pressure break need press layer, the top connection that drops into seal bar 10 by well head contacted with the sliding sleeve 18 of gauge tap 5 and keeps sealing state, continues to suppress in the oil pipe at this moment; Cut off shear pin 19, sliding sleeve 18 is descending, and gauge tap 5 is opened; Sand jet outlet exposes; The oil jacket annular space is communicated with, the lower contact and the seal head 7 contact matching shutoff lower floors of while seal bar 10, and this moment can the pressure break upper strata.
Bottom switch 8 guarantees that at first the big latus rectum pressure break of Y341 packer setting 6, the big latus rectum pressure break of Y241 packer 3 set, and secondly for the fractured layer I enough flow channels is provided; The big latus rectum pressure break of Y341 packer, the big latus rectum pressure break of Y241 packer 3 are used for separating target zone fractured layer I 11, fractured layer II 12, reach the purpose to fractured layer I 11,12 separate stratum fracfturings of fractured layer II; Gauge tap 5 one is to guarantee the fractured layer I is being implemented guarantee that fractured layer II place oil jacket is obstructed in the process of pressure break, the 2nd, accomplish the back when fractured layer II 12 is constructed in fractured layer I 11 pressure breaks, for fractured layer II 11 provides flow channels shutoff fractured layer I 11; Holder rubber bowl 2 is used for guaranteeing in discharge opeing or termination of pumping process, to hold the sand of whereabouts, prevents the big latus rectum pressure break of sand setting sand card Y241 packer 3; Pressure break hydraulic pump pump barrel 1 one is to guarantee that in fracturing process oil jacket is obstructed; The 2nd, before fractured layer II 11 is carried out pressure break; There are enough latus rectums to guarantee that seal bar is smoothly through pressure break hydraulic pump pump barrel 1; The 3rd, fractured layer I, fractured layer II are implemented separate stratum fracfturing finish, as the liquid outlet of hydraulic jet pump discharge opeing, guarantee to accomplish quick fluid-discharge and ask product work; 4 li placement force meters of manometer, the one, be used for monitoring the seat envelope situation of the big latus rectum pressure break of Y341 packer, the big latus rectum pressure break of Y241 packer, the 2nd, to the pressure break situation of fractured layer I, fractured layer II and press the back discharge opeing to ask to produce overall process and monitor.
Seal in well according to accompanying drawing 1 tubing string; Drop into ball sealer 9 from oil pipe, after ball 9 to be sealed was fallen on the base of bottom switch 8, through the oil pipe pressurization, pressure raise with pump truck, combined closely to form with sleeve pipe and seal in Y341 6, Y241 3 big latus rectum pressure break packing elements expansion backs; Pressure continues to raise, and the sliding sleeve on the bottom switch 8 is cut off pin, and sliding sleeve and ball sealer 9 fall to abdicating the sandblast hole of bottom switch 8; Pressure break fractured layer I 11, fracturing fluid get into the stratum from the sandblast hole, accomplish the pressure break to the fractured layer I; Oil pipe drops into seal bar 10 to gauge tap 5 places, and seal bar 10 and seal head 7 shutoff bottom fractured layer I through the oil pipe pressurization, are opened the sliding sleeve of gauge tap 5 and abdicated the sand jet outlet on the ejector; Fracturing fluid gets into the stratum from the sandblast hole, accomplish the pressure break to target zone fractured layer II 12; Open flow finishes, and salvages seal bar 10; Salvage and finish, on the ball seat, squeeze into power fluid in oil pipe pitching to the pressure break hydraulic pump pump barrel 1 through oil pipe; Pressure raises, and opens the sliding sleeve on the pressure break hydraulic pump pump barrel 1, throws pump core 13 (following extension pressure gauges; The stream that measures in the discharge opeing process is pressed) go into pump seat, hydraulic pump begins discharge opeing and asks product; Discharge opeing is asked to produce and is finished, and the upper lifting pipe post finishes construction.Holder rubber bowl 2 is held the sand of whereabouts in the oil jacket annular space mixed liquor (stratum production fluid and power fluid) during pump row's process and termination of pumping, prevent to fall on the big latus rectum pressure break of the Y241 packer 3, sand card tubing string phenomenon occurs.The pressure gauge that manometer is 4 li carries out pressure record to whole construction course.
Claims (1)
- Two-layer pressure break of oil gas well fixed tubular column and hydraulic pump fast the row of returning ask Congress of Industrial Organizations to make the formation testing tubing string; It is characterized in that: the pressure break that has been threaded on oil pipe hydraulic pump pump barrel (1); Be with holder rubber bowl (2) on the oil-pipe external wall of pressure break hydraulic pump pump barrel (1) below; Be connected with the big latus rectum pressure break of Y241 packer (3) on the oil pipe of holder rubber bowl (2) below; Manometer (4) has been threaded on the oil pipe of the big latus rectum pressure break of Y241 packer (3) below; Is connected with sliding sleeve through cutting off pin in manometer (4) lower end be threaded successively gauge tap (5), the big latus rectum pressure break of Y341 packer (6), seal head (7), the bottom switch (8), bottom switch (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204625598U CN202325425U (en) | 2011-11-19 | 2011-11-19 | Combined-operation oil-testing string for realizing two-layer fracturing by using immobile string of oil-gas well and rapid flowback production acquisition by hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204625598U CN202325425U (en) | 2011-11-19 | 2011-11-19 | Combined-operation oil-testing string for realizing two-layer fracturing by using immobile string of oil-gas well and rapid flowback production acquisition by hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202325425U true CN202325425U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204625598U Expired - Fee Related CN202325425U (en) | 2011-11-19 | 2011-11-19 | Combined-operation oil-testing string for realizing two-layer fracturing by using immobile string of oil-gas well and rapid flowback production acquisition by hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202325425U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907126A (en) * | 2015-12-23 | 2017-06-30 | 中国石油天然气股份有限公司 | Cleaning device and packer |
| CN107701162A (en) * | 2017-11-24 | 2018-02-16 | 中国石油集团渤海钻探工程有限公司 | A kind of self locking type bidirectional blocks sanding machine |
-
2011
- 2011-11-19 CN CN2011204625598U patent/CN202325425U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907126A (en) * | 2015-12-23 | 2017-06-30 | 中国石油天然气股份有限公司 | Cleaning device and packer |
| CN106907126B (en) * | 2015-12-23 | 2019-11-08 | 中国石油天然气股份有限公司 | Cleaning device and packer |
| CN107701162A (en) * | 2017-11-24 | 2018-02-16 | 中国石油集团渤海钻探工程有限公司 | A kind of self locking type bidirectional blocks sanding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20201119 |