CN202157793U - Hydraulic ejecting tubular column for fracture acidizing - Google Patents
Hydraulic ejecting tubular column for fracture acidizing Download PDFInfo
- Publication number
- CN202157793U CN202157793U CN2011202404529U CN201120240452U CN202157793U CN 202157793 U CN202157793 U CN 202157793U CN 2011202404529 U CN2011202404529 U CN 2011202404529U CN 201120240452 U CN201120240452 U CN 201120240452U CN 202157793 U CN202157793 U CN 202157793U
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- centralizer
- ejector
- ejectors
- oil pipe
- connects
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Abstract
The utility model provides a hydraulic ejecting tubular column for fracture acidizing, which is applied to an ejecting pressure construction of an oil well in an oil field. The lower end of a first centralizer is connected with a No.1 ejector; the lower end of the No.1 ejector is connected with a second centralizer, and the lower end of the second centralizer is connected with a No.2 ejector; the lower end of the No.2 ejector is connected with a third centralizer, and the lower end of the third centralizer is connected with a No.3 ejector; the lower end of the No.3 ejector is connected with a fourth centralizer, the lower end of the fourth centralizer is connected with a No.4 ejector; the lower end of the No.4 ejector is connected with a ball seat; the lower end of the ball seat is connected with a sieve tube; and the lower end of the sieve tube is connected with a guide shoe. The hydraulic ejecting tubular column has the beneficial effects that an oil pipe does not need to be lift up, four-layer fracture can be performed by delivery at four times, and a series of risks caused by lifting up the oil pipe by means of normal ejecting and fracturing can be avoided, so that the hydraulic jetting tubular column is safer to use in a gas well; a construction working procedure is very simple, and a plurality of layers can be fractured in a day, so that the oil test cost can be greatly save; and the residence time of fracturing fluid in the stratum can be greatly shortened.
Description
Technical field
The utility model relates to the exploitation of oil-gas field field, and particularly a kind of underground fracture acidifying is with waterpower playpipe post.
Background technology
It is catchment power abrasive perforating, fracturing, the incorporate novel raising the output renovation technique of isolation that oil well is carried out the jetting pressure break, is applicable to low-permeability oil deposit straight well, horizontal well, is a kind of effective and feasible method of low-permeability oil deposit fracturing yield increasing.At present, coiled tubing jetting separate stratum fracfturing technology still belongs to technological gap at home, worldwide also rarely has the application example report.Fixed tubular column jetting multiple fracturing technology is the improvement to original jetting pressure break, in work progress, opens through controlling multistage spray tip, need not move tubing string and can realize multiple fracturing.
The utility model content
The purpose of the utility model is: provide a kind of fracture acidizing with waterpower playpipe post, be applied to the low-permeability oil deposit straight well, horizontal well sprays fracture acidizing and uses reservoir, improve low-permeability oil deposit output.
The technical scheme that the utility model adopts is: fracture acidizing is with waterpower playpipe post; Mainly form by centralizer, an ejector, No. two ejectors, No. three ejectors, No. four ejectors, ball seat, screen casing, guide shoe and oil pipes; Be connected with first centralizer in the oil pipe lower end, it is characterized in that: the lower end at first centralizer connects an ejector through oil pipe; Lower end at an ejector connects second centralizer through oil pipe, and the lower end of second centralizer connects No. two ejectors through oil pipe; Lower end at No. two ejectors connects the 3rd centralizer through oil pipe, and the lower end of the 3rd centralizer connects No. three ejectors through oil pipe; Lower end at No. three ejectors connects the 4th centralizer through oil pipe, and the lower end of the 4th centralizer connects No. four ejectors through oil pipe; Lower end at No. four ejectors connects ball seat through oil pipe; Lower end at ball seat connects screen casing through oil pipe; Lower end at screen casing connects guide shoe through oil pipe; The upper end one of oil pipe is to well head.
A described ejector, No. two ejectors and No. three injector interior have sliding sleeve, and No. four injector interior does not have sliding sleeve.The sliding sleeve internal diameter of an injector interior is greater than the sliding sleeve internal diameter of No. two ejectors and No. three injector interior, and the sliding sleeve internal diameter of No. two injector interior is greater than the sliding sleeve internal diameter of No. three injector interior.
The summary fracture acidizing is with waterpower playpipe post work progress.Consult Fig. 1.The utility model fracture acidizing is mainly used in low-permeability oil deposit straight well, horizontal well injection pressing crack construction with waterpower playpipe post.
When in tubing string, dropping into first ball, no sliding sleeve in No. four ejectors 5, the ball seat sealing, No. four ejector is started working.The sliding sleeve of No. three ejector 4 inside is opened in the 2nd pitching; No. three ejector 4 begins to spray fracturing fluid.The sliding sleeve of No. two ejector 3 inside is opened in the 3rd pitching; No. two ejector 3 begins to spray fracturing fluid.The sliding sleeve of ejector 2 inside is opened in last pitching; No. one ejector 2 begins to spray fracturing fluid.After pressure break was accomplished, the ball of input returns at last discharged in the ball collecting device of installing at the well head place.
The beneficial effect of the utility model: the utility model fracture acidizing is with waterpower playpipe post, and (1) does not need to carry oil pipe, can split by four completion of pitching, four laminations, does not have the conventional serial risk of carrying oil pipe on the pressure break of spraying, and uses safer in the gas well; (2) working procedure is very simple, but one day pressure break multilayer is significantly practiced thrift the formation testing expense; Significantly shorten the holdup time of fracturing fluid in the stratum.(3) fracturing process and conventional pressure break are similar, need not employ not kill-job equipment.
Description of drawings
Fig. 1 is that the utility model fracture acidizing is with waterpower playpipe rod structure sketch map.
Among the figure, 1-centralizer, ejector of 2-, No. two ejectors of 3-, No. three ejectors 4 of 4-, No. four ejectors of 5-, 6-ball seat, 7-screen casing, 8-guide shoe, 9-oil pipe.
The specific embodiment
Embodiment 1: use waterpower playpipe post to be example with a fracture acidizing, the utility model is done further explain.
Consult Fig. 1.The utility model fracture acidizing is with waterpower playpipe post; Mainly form, be connected with first centralizer 1 in oil pipe 9 lower ends by centralizer 1, ejector 2, No. two ejectors 3, No. three ejectors 4, No. four ejectors 5, ball seat 6, screen casing 7, guide shoe 8 and oil pipes 9.Lower end at first centralizer 1 connects an ejector 2 through oil pipe 9.The lower end that connects second centralizer, 1, the second centralizer 1 in the lower end of an ejector 2 through oil pipe 9 connects No. two ejectors 3 through oil pipe 9.The lower end that connects the 3rd centralizer 1, the three centralizer 1 in the lower end of No. two ejectors 3 through oil pipe 9 connects No. three ejectors 4 through oil pipe 9.The lower end that connects the 4th centralizer 1, the four centralizer 1 in the lower end of No. three ejectors 4 through oil pipe 9 connects No. four ejectors 5 through oil pipe 9.Lower end at No. four ejectors 5 connects ball seat 6 through oil pipe 9.Lower end at ball seat 6 connects screen casing 7 through oil pipe 9.Lower end at screen casing 7 connects guide shoe 8 through oil pipe 9.The upper end one of oil pipe 9 is to well head.There is sliding sleeve ejector 2, No. two ejectors 3 and No. three ejector 4 inside, and No. four ejector 5 inside do not have sliding sleeve.The sliding sleeve internal diameter of ejector 2 inside is greater than the sliding sleeve internal diameter of No. two ejectors 3 and No. three ejector 4 inside, and the sliding sleeve internal diameter of No. two ejector 3 inside is greater than the sliding sleeve internal diameter of No. three ejector 4 inside.
Claims (2)
1. a fracture acidizing is with waterpower playpipe post; Mainly form by centralizer (1), an ejector (2), No. two ejectors (3), No. three ejectors (4), No. four ejectors (5), ball seat (6), screen casing (7), guide shoe (8) and oil pipe (9); Be connected with first centralizer (1) in oil pipe (9) lower end, it is characterized in that: the lower end at first centralizer (1) connects an ejector (2) through oil pipe (9); Lower end at an ejector (2) connects second centralizer (1) through oil pipe (9), and the lower end of second centralizer (1) connects No. two ejectors (3) through oil pipe (9); Lower end at No. two ejectors (3) connects the 3rd centralizer (1) through oil pipe (9), and the lower end of the 3rd centralizer (1) connects No. three ejectors (4) through oil pipe (9); Lower end at No. three ejectors (4) connects the 4th centralizer (1) through oil pipe (9), and the lower end of the 4th centralizer (1) connects No. four ejectors (5) through oil pipe (9); Lower end at No. four ejectors (5) connects ball seat (6) through oil pipe (9); Lower end at ball seat (6) connects screen casing (7) through oil pipe (9); Lower end at screen casing (7) connects guide shoe (8) through oil pipe (9); The upper end one of oil pipe (9) is to well head.
2. fracture acidizing according to claim 1 is characterized in that with waterpower playpipe post: there is sliding sleeve a described ejector (2), No. two ejectors (3) and No. three ejectors (4) inside, and No. four ejectors (5) inside does not have sliding sleeve; The sliding sleeve internal diameter of an ejector (2) inside is greater than No. two ejectors (3) and the inner sliding sleeve internal diameter of No. three ejectors (4), and the sliding sleeve internal diameter of No. two ejectors (3) inside is greater than the inner sliding sleeve internal diameter of No. three ejectors (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202404529U CN202157793U (en) | 2011-07-08 | 2011-07-08 | Hydraulic ejecting tubular column for fracture acidizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202404529U CN202157793U (en) | 2011-07-08 | 2011-07-08 | Hydraulic ejecting tubular column for fracture acidizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202157793U true CN202157793U (en) | 2012-03-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202404529U Expired - Lifetime CN202157793U (en) | 2011-07-08 | 2011-07-08 | Hydraulic ejecting tubular column for fracture acidizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202157793U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758598A (en) * | 2012-08-03 | 2012-10-31 | 中国海洋石油总公司 | Integrated pipe column for accurate quantitative injection and seal examination and seal examination method thereof |
| CN104343430A (en) * | 2013-08-07 | 2015-02-11 | 胜利油田胜机石油装备有限公司 | Method for staged fracturing of well cementation casing string and tool for method |
-
2011
- 2011-07-08 CN CN2011202404529U patent/CN202157793U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758598A (en) * | 2012-08-03 | 2012-10-31 | 中国海洋石油总公司 | Integrated pipe column for accurate quantitative injection and seal examination and seal examination method thereof |
| CN102758598B (en) * | 2012-08-03 | 2015-04-22 | 中国海洋石油总公司 | Integrated pipe column for accurate quantitative injection and seal examination and seal examination method thereof |
| CN104343430A (en) * | 2013-08-07 | 2015-02-11 | 胜利油田胜机石油装备有限公司 | Method for staged fracturing of well cementation casing string and tool for method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120307 |
|
| CX01 | Expiry of patent term |