CN202531150U - Fishable fracturing sliding sleeve sand spraying device - Google Patents
Fishable fracturing sliding sleeve sand spraying device Download PDFInfo
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- CN202531150U CN202531150U CN2012201313141U CN201220131314U CN202531150U CN 202531150 U CN202531150 U CN 202531150U CN 2012201313141 U CN2012201313141 U CN 2012201313141U CN 201220131314 U CN201220131314 U CN 201220131314U CN 202531150 U CN202531150 U CN 202531150U
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- sliding sleeve
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- radial direction
- fracturing
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Abstract
The utility model discloses a fishable fracturing sliding sleeve sand spraying device. The device aims to overcome the defects that fluid in a pipe column does not flow smoothly because a pitch and a sliding sleeve stop in a pipe column after fracturing construction operation is performed, and construction operation of the produced sand of an oil well cannot be performed by adopting a conventional sand washing process. The fishable fracturing sliding sleeve sand spraying device comprises a body, a sliding sleeve and a ball, wherein threads connected with a well completion pipe string or a matched tool are formed at the upper end and the lower end of the body; the inner hole of the body is a stepped hole with a large upper part and a small lower part; the middle part of the body is a straight hole of which the length is greater than that of the sliding sleeve; a radial through hole is formed in the upper end part of the straight hole; an inner boss of the lower end part of the body is a limiting surface; the sliding sleeve is positioned in the straight hole in the middle part of the body; the sliding sleeve is fixed with the body in a radial direction through a shear pin; the radial through hole of the body is closed by the upper end of the sliding sleeve; and the inner boss of the lower end part of the sliding sleeve is a spherical seat. The device has the advantages of simple and reasonable design, convenience in operation, safety and reliability; the inner sliding sleeve and the ball in the downhole pipe column can be taken out by adopting the conventional fishing process; the inner latus rectum of a downhole tool is ensured; convenience is provided for post construction operation; the operation period is shortened; and the operation cost is reduced.
Description
Technical field
The utility model relates to a kind of oil and gas development underground fracture sliding sleeve, especially relates to a kind of pressure break sliding sleeve sanding apparatus of fishing for.
Background technology
In order to improve oil field prospecting exploitation comprehensive benefit; Adopting horizontal well technology is the important channel; Particularly horizontal well and the output for low porosity and low permeability oil-gas reservoir does not reach the complex structural well that economic development requires; To adopt the fracturing reform well stimulation, the fractured horizontal well reforming technology is complicated, and the downhole tool performance requirement is high.At present, oil gas field horizontal well multistage fracturing reform generally adopts the oil reservoir technology of specially beating and hanging packer, sliding sleeve, open hole packer and kit etc., realizes the multistage fracturing technique, or adopts well cementation sliding sleeve and kit to cement the well and accomplish the multistage fracturing technique.Utilizing builds the pressure in the technological tubing string of well head pitching opens the corresponding sliding sleeve in down-hole pressing crack construction successively, and the ball after construction finishes in the input well can not return smoothly and eject.Because the ball that drops into forms in pit shaft and stops, has a strong impact on oil well output, in case sand production then can't adopt conventional sand washing process to carry out construction operation; Must remove operation with sliding sleeve in the well and ball eliminating through boring; Its complex process, the cycle is long, and operating cost is high.
Summary of the invention
Be detained in the tubing string in order to overcome the pitching, the sliding sleeve that exist after the existing pressing crack construction operation; Cause the interior flow of tubing string not smooth; Sand production can't adopt conventional sand washing process to carry out the deficiency of construction operation, and the utility model provides a kind of pressure break sliding sleeve sanding apparatus of fishing for.
The utility model solves the technical scheme that its technical problem adopted: can fish for pressure break sliding sleeve sanding apparatus and comprise body, sliding sleeve, ball; There is the screw thread that is connected with completion tubular column or kit at the two ends up and down of body; The body endoporus is up big and down small shoulder hole; The middle part is the straight hole of length greater than sliding sleeve 3, and there is radial direction through hole the straight hole upper end, and body bottom inner convex platform is a confined planes; Sliding sleeve is arranged in the straight hole at body middle part, and shear pin is radially fixing with sliding sleeve and body, and the radial direction through hole of body is closed in the sliding sleeve upper end; The inner convex platform of sliding sleeve bottom is a ball seat.Ball is dropped in the sliding sleeve, build the pressure shear pin is cut off, when sliding sleeve was displaced downwardly to confined planes along the body endoporus, the upper surface of sliding sleeve was lower than the radial direction through hole of body, and radial direction through hole is an open mode.Being connected in turn on the completion tubular column by shear pin fixing body and sliding sleeve more than 2 or 2, sliding sleeve internal diameter from top to bottom reduces successively.
The beneficial effect of the utility model is, and is simple and reasonable, and easy operating is safe and reliable, adopts conventional fishing process can inner sliding sleeve in the down-hole string and ball be taken out, and shortens duty cycle, reduces operating cost, for the construction in later period operation is provided convenience.
Description of drawings
Fig. 1 can fish for pressure break sliding sleeve sanding apparatus structural representation for the utility model;
Structural representation when Fig. 2 can fish for pressure break sliding sleeve sanding apparatus fracturing work for the utility model;
Fig. 3 can fish for the structural representation behind the pressure break sliding sleeve sanding apparatus latus rectum for the utility model.
Among the figure: 1. body, 2. radial direction through hole, 3. sliding sleeve, 4. shear pin, 5. ball seat, 6. confined planes, 7. ball.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.But what those skilled in the art should know is to the invention is not restricted to the listed specific embodiment, as long as spirit according to the invention all should be included in the protection domain of the utility model.
Referring to accompanying drawing 1.The utility model can be fished for pressure break sliding sleeve sanding apparatus and comprise body 1, sliding sleeve 3, ball 7, and there is the screw thread that is connected with completion tubular column or kit at the two ends up and down of body 1, and the upper end of body 1 is that internal thread, lower end are external screw thread usually.
The endoporus of body 1 is up big and down small shoulder hole, and the middle part is the straight hole of length greater than sliding sleeve 3, and there is the circumference uniform distribution of the radial direction through hole 2 of radial direction through hole more than 2,2 or 2 along body 1 body 1 straight hole upper end.The inner convex platform of body 1 bottom is a confined planes 6.
Sliding sleeve 3 is arranged in the straight hole at body 1 middle part, and shear pin 4 is radially fixing with sliding sleeve 3 and body 1, and the radial direction through hole 2 of body 1 is closed in sliding sleeve 3 upper ends; The inner convex platform of sliding sleeve 3 bottoms is a ball seat 5.
Referring to accompanying drawing 2.Ball 7 is dropped in the sliding sleeve 3, build the pressure in the tubing string shear pin 4 is cut off, when sliding sleeve 3 was displaced downwardly to confined planes 6 along the body endoporus, the upper surface of sliding sleeve 3 was lower than the radial direction through hole 2 of body, and radial direction through hole 2 is an open mode.
Needs according to the staged fracturing operation; Can be with being connected in turn on the underground work tubing string with sliding sleeve 3 more than 2 or 2 by shear pin 4 fixing bodies 1, sliding sleeve 3 internal diameters from top to bottom reduce successively, through dropping into ball 7 from the bottom to top successively; Open the pressure break radial direction through hole 2 of different sections; One casing string can be accomplished the multistage pressure break, and directly going into operation in the construction back, causes closing sand jet outlet because of maloperation when effectively preventing fracturing work.When the back chance of going into operation is shaked out, after the sand washing of employing common process, be lowered to the inwall that the fishing tool that is complementary drags for sliding sleeve 3, sliding sleeve 3 and ball 7 are pulled out, guarantee the interior latus rectum of downhole tool,, shorten duty cycle, reduce operating cost for the construction in later period operation is provided convenience.
It is following to adopt the utility model can fish for pressure break sliding sleeve sanding apparatus operation process:
At first, can fish for pressure break sliding sleeve sanding apparatus according to technological design and be connected, be lowered in the pit shaft, implement completion practice with completion tubular column and kit.When carrying out pressing crack construction, after dropping into ball 7 and treating ball seat 5, build the pressure in the tubing string, when pressure reached shear pin 4 and cuts off design load, shear pin 4 was cut off, and sliding sleeve 3 slides down on the confined planes 6 along body 1, opens radial direction through hole 2, can implement pressing crack construction.Connect the sliding sleeve 3 of equivalent amount according to actual pressure break hop count, repeatedly pressing crack construction is carried out in pitching, shown in accompanying drawing 2.
When ball 7 influences other operations in tubing string, carry out fishing by oil-water well salvaging standard.The fishing tool that is lowered to coupling drags for the inwall of sliding sleeve 3, can sliding sleeve in the down-hole string 3 and ball 7 be taken out, and realizes passage 2 normally opens, can completion operation (referring to accompanying drawing 3).
It should be noted that the foregoing description is example and unrestricted the utility model, those skilled in the art can design a lot of alternate embodiments and not break away from the claim scope of this patent.
Claims (3)
1. can fish for pressure break sliding sleeve sanding apparatus for one kind, comprise body, sliding sleeve, ball, there is the screw thread that is connected with completion tubular column or kit at the two ends up and down of body, it is characterized in that:
Said body (1) endoporus is up big and down small shoulder hole, and the middle part is the straight hole of length greater than sliding sleeve (3), and there is radial direction through hole (2) the straight hole upper end, and body (1) bottom inner convex platform is confined planes (6);
Said sliding sleeve (3) is arranged in the straight hole at body (1) middle part, and shear pin (4) is radially fixing with sliding sleeve (3) and body (1), and the radial direction through hole (2) of body (1) is closed in sliding sleeve (3) upper end;
The inner convex platform of said sliding sleeve (3) bottom is ball seat (5).
2. according to the said pressure break sliding sleeve sanding apparatus of fishing for of claim 1; It is characterized in that: ball (7) is dropped in the sliding sleeve (3); Build the pressure said shear pin (4) is cut off; When sliding sleeve (3) was displaced downwardly to confined planes (6) along the body endoporus, the upper surface of sliding sleeve (3) was lower than the radial direction through hole (2) of body, and radial direction through hole (2) is an open mode.
3. according to the said pressure break sliding sleeve sanding apparatus of fishing for of claim 2, it is characterized in that: being connected in turn on the completion tubular column with sliding sleeve (3) by the fixing body (1) of said shear pin (4) more than 2 or 2, sliding sleeve from top to bottom (3) internal diameter reduces successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201313141U CN202531150U (en) | 2012-03-31 | 2012-03-31 | Fishable fracturing sliding sleeve sand spraying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201313141U CN202531150U (en) | 2012-03-31 | 2012-03-31 | Fishable fracturing sliding sleeve sand spraying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531150U true CN202531150U (en) | 2012-11-14 |
Family
ID=47132340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201313141U Expired - Lifetime CN202531150U (en) | 2012-03-31 | 2012-03-31 | Fishable fracturing sliding sleeve sand spraying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531150U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321624A (en) * | 2013-07-09 | 2013-09-25 | 中国石油集团渤海钻探工程有限公司 | Threaded sliding sleeve with ball seat capable of being taken out |
| CN103362488A (en) * | 2012-03-31 | 2013-10-23 | 大港油田集团有限责任公司 | Sand blasting device allowing fracturing sliding sleeve to be fished |
| CN104213892A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Openable and closable fracture sliding sleeve |
-
2012
- 2012-03-31 CN CN2012201313141U patent/CN202531150U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362488A (en) * | 2012-03-31 | 2013-10-23 | 大港油田集团有限责任公司 | Sand blasting device allowing fracturing sliding sleeve to be fished |
| CN103362488B (en) * | 2012-03-31 | 2017-02-15 | 大港油田集团有限责任公司 | Sand blasting device allowing fracturing sliding sleeve to be fished |
| CN104213892A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Openable and closable fracture sliding sleeve |
| CN103321624A (en) * | 2013-07-09 | 2013-09-25 | 中国石油集团渤海钻探工程有限公司 | Threaded sliding sleeve with ball seat capable of being taken out |
| CN103321624B (en) * | 2013-07-09 | 2016-04-20 | 中国石油集团渤海钻探工程有限公司 | A desirable ball seat sliding sleeve of screw-type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Three Dagang oil field, Tianjin, Grand Port, No. 300280 Patentee after: Dagang Oil Field Group Co., Ltd. Patentee after: DRILLING TECHNOLOGY DEVELOPMENT COMPANY, TIANJIN DAGANG OILFIELD RESEARCH INSTITUTE OF PETROLEUM ENGINEERING Address before: Three Dagang oil field, Tianjin, Grand Port, No. 300280 Patentee before: Dagang Oil Field Group Co., Ltd. Patentee before: Tianjin Dagang Oilfield Drilling Technology Development Co., Ltd. |