CN2769506Y - Underwell oil production tool - Google Patents
Underwell oil production tool Download PDFInfo
- Publication number
- CN2769506Y CN2769506Y CN 200520080718 CN200520080718U CN2769506Y CN 2769506 Y CN2769506 Y CN 2769506Y CN 200520080718 CN200520080718 CN 200520080718 CN 200520080718 U CN200520080718 U CN 200520080718U CN 2769506 Y CN2769506 Y CN 2769506Y
- Authority
- CN
- China
- Prior art keywords
- oil
- outer working
- working tube
- seating nipple
- working barrel
- 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 - Fee Related
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- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The utility model relates to an underwell oil production tool which has the technical scheme that a working barrel is orderly connected with a ball seat, a valve ball, a spring press cover, a spring and a nut from right to left, wherein the nut is connected with an adjusting bolt; the left end of a branch production body is connected with the right end of the working barrel; an external working barrel is sheathed at the outside of the branch production body; both ends of the external working barrel are respectively connected with an upper contact and a lower contact; besides, one end of the working barrel is provided with internal threads, the other end is provided with external threads, and the middle part of the working barrel is provided with an oil outlet; one end of the external working barrel is provided with external threads, the other end is provided with internal threads and the middle part is provided with an oil outlet. The utility model has the advantages that two layers of oil can be extracted simultaneously through one oil-well pump, and funds can be saved effectively.
Description
One, technical field: the utility model relates to a kind of oil field downhole tool, particularly a kind of down-hole oil production instrument.
Two, background technology: be to run into some low permeability oil fields in the production in the oil field at present, the oil reservoir span is big, and the reserves of every layer of oil are low, the oil well that can not develop as cover series of strata separately, in order to exploit this class oil well, generally adopt the method for double pump separate zone whole production or single-string multi-zone production.The double pump separate zone whole production is to adopt packer to separate oil reservoir, is lowered to oil well pump respectively and recovers the oil in different oil reservoirs, so just needs to drop into a large amount of oil production equipments.Cause problems such as investment is big, deficiency in economic performance to enterprise, single-string multi-zone production can cause problems such as formation pressure system phase mutual interference.
Three, summary of the invention: the purpose of this utility model is exactly the above-mentioned defective that exists at prior art, and a kind of down-hole oil production instrument is provided.
The technical solution of the utility model: by top connection (1), regulate bolt (2), nut (3), spring (4), seating nipple (5), spring capping (6), valve ball (7), ball seat (8), divide and adopt body (9), outer working tube (10) and lower contact (11) constitute, it is characterized in that: in described seating nipple (5) from right to left successively connecting ball seat (8), valve ball (7), spring capping (6), spring (4), nut (3), on nut, connecting adjusting bolt (2), divide the left end of adopting body (9) to be connected on the right-hand member of seating nipple (5), outer working tube (10) is sleeved on the outside that branch is adopted body (9), connecting top connection (1) and lower contact (11) respectively at the two ends of outer working tube, and, get an end at described seating nipple (5) and be provided with internal thread (14), be provided with external screw thread (15) at the other end, be provided with oil outlet (12) at the middle part of seating nipple (5); One end of described outer working tube (10) is provided with external screw thread (17), is provided with internal thread (18) at the other end of outer working tube (10), and the middle part is provided with oil outlet (13).
The beneficial effects of the utility model: just the extraction simultaneously of two-layer oil effectively can have been saved fund, and improved economic benefit by an oil well pump.
Four, description of drawings:
Accompanying drawing is a structural representation of the present utility model.
Five, the specific embodiment:
With reference to accompanying drawing, the utility model will be further described:
The utility model is adopted body 9, outer working tube 10 and lower contact 11 and is constituted by top connection 1, adjusting bolt 2, nut 3, spring 4, seating nipple 5, spring capping 6, valve ball 7, ball seat 8, branch.End at seating nipple 5 is provided with internal thread 14, is provided with external screw thread 15 at the other end of seating nipple 5, has oil outlet 12 at the middle part of seating nipple 5, and ball seat 8 is drum shape, has oil duct 19 in the centre of drum shape ball seat 8.Outer working tube 10 is cylindrical, end at outer working tube 10 is provided with external screw thread 17, bucket 10 the other end of working outside is provided with internal thread 18, have fuel feed hole 13 at the middle part of outer working tube 10, on seating nipple 5 from right to left successively connecting ball seat 8, valve ball 7, spring capping 6, spring 4, nut 3 usefulness are threaded on the internal thread 14 on the seating nipple 5, regulating bolt 2 usefulness is threaded on the nut 3, when turning adjusting bolt 2, the degree that compresses that can regulating spring 4, divide the left end of adopting body 9 with being threaded on the right-hand member external screw thread 15 of seating nipple 5, adopting at branch has oilhole 16 on the body 9, divide and to adopt body 9 and be fixed on the outer working tube 10, divide the fuel feed hole 13 corresponding and connections on the oilhole 16 adopted on the body 9 and the outer working tube 10.Top connection 1 usefulness is threaded on the external screw thread 17 of outer working tube 10 left ends, and lower contact 11 usefulness are threaded on the internal thread 18 of outer working tube 10 right-hand members.When the oil field pumping well ordinary production, upper strata crude oil is through fuel feed hole 13, oilhole 16, divide and adopt body 9, behind the oil duct 19, back down valve ball 7, oil outlet on seating nipple 5 12 enters in the annular space 20 between seating nipple 5 and the outer working tube 10 again, lower floor's crude oil is through lower contact 11, divide the passageway bridge 21 adopt body 9 to enter annular space 20 between seating nipple 5 and the outer working tube 10, converge with the upper strata crude oil that enters annular space 20 again, enter oil pipe, extract out by oil well pump, be input in the petroleum pipeline through well head and go, by regulating the degree that compresses that bolt 2 comes regulating spring 4, reach the opening pressure of regulating valve ball 7, make two-layer pressure balance up and down, make the crude oil that enters in the oil pipe advance oil well pump and keep same pressure system before, do not disturb mutually, thus the purpose of realization separate zone whole production.
Claims (2)
1 one kinds of down-hole oil production instruments, by top connection (1), regulate bolt (2), nut (3), spring (4), seating nipple (5), spring capping (6), valve ball (7), ball seat (8), divide and adopt body (9), outer working tube (10) and lower contact (11) constitute, it is characterized in that: in described seating nipple (5) from right to left successively connecting ball seat (8), valve ball (7), spring capping (6), spring (4), nut (3), on nut, connecting adjusting bolt (2), divide the left end of adopting body (9) to be connected on the right-hand member of seating nipple (5), outer working tube (10) is sleeved on the outside that branch is adopted body (9), connecting top connection (1) and lower contact (11) respectively at the two ends of outer working tube, and, get an end at described seating nipple (5) and be provided with internal thread (14), be provided with external screw thread (15) at the other end, be provided with oil outlet (12) at the middle part of seating nipple (5); One end of described outer working tube (10) is provided with external screw thread (17), is provided with internal thread (18) at the other end of outer working tube (10), and the middle part is provided with oil outlet (13).
2, down-hole oil production instrument according to claim 1 is characterized in that: described branch is adopted oilhole (16) and the connection corresponding with the fuel feed hole (13) on the outer working tube (10) on the body (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520080718 CN2769506Y (en) | 2005-02-24 | 2005-02-24 | Underwell oil production tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520080718 CN2769506Y (en) | 2005-02-24 | 2005-02-24 | Underwell oil production tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2769506Y true CN2769506Y (en) | 2006-04-05 |
Family
ID=36690588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520080718 Expired - Fee Related CN2769506Y (en) | 2005-02-24 | 2005-02-24 | Underwell oil production tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2769506Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089556A (en) * | 2015-07-30 | 2015-11-25 | 中国石油天然气股份有限公司 | Adjustable slicing mining valve |
-
2005
- 2005-02-24 CN CN 200520080718 patent/CN2769506Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089556A (en) * | 2015-07-30 | 2015-11-25 | 中国石油天然气股份有限公司 | Adjustable slicing mining valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |