CN201486475U - Combined pipe column with functions of fracturing pipe column and oil production pipe column - Google Patents
Combined pipe column with functions of fracturing pipe column and oil production pipe column Download PDFInfo
- Publication number
- CN201486475U CN201486475U CN2009200343203U CN200920034320U CN201486475U CN 201486475 U CN201486475 U CN 201486475U CN 2009200343203 U CN2009200343203 U CN 2009200343203U CN 200920034320 U CN200920034320 U CN 200920034320U CN 201486475 U CN201486475 U CN 201486475U
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- China
- Prior art keywords
- pipe column
- fracturing
- combined
- oil
- oil production
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- 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.)
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Abstract
The utility model relates to the field of oil development, in particular to a combined pipe column with functions of a fracturing pipe column and an oil production pipe column. The combined pipe column overcomes the problems of complex operation process, frequent lower pipe column removing, big labor intensity and high operation cost in the prior art. The combined pipe column provides the technical scheme for overcoming the problems in the prior art that the combined pipe column with functions of the fracturing pipe column and the oil production pipe column comprises an oil tube, a working barrel, a valve seat and a fracturing drilling tool, wherein the working tube is connected between the oil tube and the fracturing drilling tool in series, and the valve seat is fixedly arranged on the working tube. The combined pipe column has the advantages that the functions of the fracturing pipe column and the oil production pipe column are integrated to finish, the combined pipe column is firstly used as a fracturing pipe column, is placed on the valve component after finishing fracturing operation, and is further placed on a piston and an oil pumping rod column for conducting oil production work. The combined pipe column has simple operation process, and avoids frequently removing the lower pipe column, and lowers labor intensity and operation cost of employees.
Description
Technical field:
The utility model relates to the oil development field, is specifically related to a kind of connection with fracturing string and flow string function and makes tubing string.
Background technology:
Fracturing string and flow string are two kinds of tubing strings of oil development.Fracturing string is made up of the fracture drill that oil pipe is connected with the bottom, and its major function is to set up liquid to circulate, provide the pit shaft packing in liquid injection channel and the part wellfracturing process; The major function of flow string is the extraction of finishing pit shaft liquid jointly, injecting liquid and stratum liquid with oil recovery power.Present field operation process is: be lowered to fracturing string, finish pressing crack construction, the pumping discharge opeing, trip out fracturing string; Be lowered to flow string, discharge opeing pilot production.The problem that such operational method exists is: operation process more complicated, a lower tubular column are frequently, labour intensity is big and operating cost is higher.
Summary of the invention:
The utility model will provide a kind of connection with fracturing string and flow string function to make tubing string, to overcome operation process more complicated that prior art exists, to play that lower tubular column is frequent, labour intensity is big and the operating cost problem of higher.
For overcoming the problem that prior art exists, the technical scheme that the utility model provides is: a kind of connection with fracturing string and flow string function is made tubing string, comprise oil pipe, seating nipple, valve seat and fracture drill, its special character is: be serially connected with seating nipple between described oil pipe and the fracture drill, be set with valve seat on seating nipple.
The beneficial effects of the utility model are, finish the function of fracturing string and flow string is integrated, at first use as fracturing string, after fracturing work is finished, only need be lowered to the valve assembly, are lowered to piston and rod string again and can carry out oil producing operation.Like this operation process simple, avoided frequently playing lower tubular column, having reduced staff labor intensity and operating cost.
Description of drawings:
Fig. 1 is the utility model structural representation;
Fig. 2～3rd, the utility model working state schematic representation.
Description of reference numerals is as follows:
The 1-tubing string, 2-seating nipple, 3-valve seat, 4-fracture drill, 5-valve assembly, 6-piston, 7-rod string.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is done detailed description.
Referring to Fig. 1, a kind of connection with fracturing string and flow string function is made tubing string, comprises oil pipe 1, seating nipple 2, valve seat 3 and fracture drill 4, is serially connected with seating nipple 2 between oil pipe 1 and the fracture drill 4, is set with valve seat 3 on seating nipple 2.
Because seating nipple 2 and valve seat 3 are hollow, can positive and negative two-way flow, therefore adopt this structure can finish pressing crack construction.
Referring to Fig. 2, after pressing crack construction is finished, valve assembly 5 is dropped into connection do in the tubing string, pressure foot envelope valve assembly 5 is on valve seat 3.
Referring to Fig. 3, pressure foot envelope valve assembly 5 is lowered to piston 6 and rod string 7 behind valve seat 3, make piston 6 enter seating nipple 2, forms flow string and carries out pilot production.
The seating nipple 2 that is set with valve seat 3 also can be arranged at the bottom of fracture drill 4, and promptly oil pipe 1 directly is connected with fracture drill 4, and the seating nipple 2 that will be set with valve seat 3 is connected in the bottom of fracture drill 4.This structure is a kind of variation structure of the present utility model, but uses less.
Claims (1)
1. the connection with fracturing string and flow string function is made tubing string, comprise oil pipe (1), seating nipple (2), valve seat (3) and fracture drill (4), it is characterized in that: be serially connected with seating nipple (2) between described oil pipe (1) and the fracture drill (4), on seating nipple (2), be set with valve seat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200343203U CN201486475U (en) | 2009-08-25 | 2009-08-25 | Combined pipe column with functions of fracturing pipe column and oil production pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200343203U CN201486475U (en) | 2009-08-25 | 2009-08-25 | Combined pipe column with functions of fracturing pipe column and oil production pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201486475U true CN201486475U (en) | 2010-05-26 |
Family
ID=42425357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200343203U Expired - Fee Related CN201486475U (en) | 2009-08-25 | 2009-08-25 | Combined pipe column with functions of fracturing pipe column and oil production pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201486475U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787829A (en) * | 2011-05-20 | 2012-11-21 | 大港油田集团有限责任公司 | Fracturing and pump-free oil production integral process pipe column and operating method thereof |
-
2009
- 2009-08-25 CN CN2009200343203U patent/CN201486475U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787829A (en) * | 2011-05-20 | 2012-11-21 | 大港油田集团有限责任公司 | Fracturing and pump-free oil production integral process pipe column and operating method thereof |
| CN102787829B (en) * | 2011-05-20 | 2015-03-25 | 大港油田集团有限责任公司 | Fracturing and pump-free oil production integral process pipe column and operating method thereof |
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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: 20100526 Termination date: 20130825 |