CN2775292Y - Fluid reverse filling short section - Google Patents
Fluid reverse filling short section Download PDFInfo
- Publication number
- CN2775292Y CN2775292Y CN 200520008871 CN200520008871U CN2775292Y CN 2775292 Y CN2775292 Y CN 2775292Y CN 200520008871 CN200520008871 CN 200520008871 CN 200520008871 U CN200520008871 U CN 200520008871U CN 2775292 Y CN2775292 Y CN 2775292Y
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- CN
- China
- Prior art keywords
- cylinder
- piston
- hydraulic
- matrix
- cleaning liquid
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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.)
- Expired - Lifetime
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Abstract
The utility model relates to a short section for the reverse injection of fluid, and the utility model relates to a device used for injecting fluid downwards to a well in an oil field. The utility model is composed of a basal body, an ejecting tube for cleaning liquid, at least two hydraulic piston cylinders and a two-position two-way valve, wherein the ejecting tube for cleaning liquid is arranged at the end part of the basal body; the hydraulic piston cylinders which are arranged on the basal body are loaded with the cleaning liquid; the two-position two-way valve is respectively matched with each hydraulic piston cylinder; a cleaning fluid cavity is arranged at the lower part of a sliding piston in the hydraulic piston cylinder; hydraulic oil which can push the piston to move is arranged above the sliding piston; the basal body is provided with a hydraulic oil hole inside; the hydraulic oil hole is communicated with a hydraulic oil inlet of the hydraulic piston cylinder and the two-position two-way valve; the basal body is also provided with a through hole for the cleaning liquid, and with the through hole for the cleaning liquid, a cleaning liquid outlet of each hydraulic piston cylinder is communicated with the ejecting tube for the cleaning liquid. The utility model can be provided with a plurality of hydraulic piston cylinders which are loaded with the cleaning liquid, and the utility model can inject different cleaning liquid downwards to the well. The utility model can inject the cleaning liquid selectively according to requirements, and is convenient for people to operate and control. The utility model has the advantages of simple structure and reliable motion.
Description
Technical field
The utility model relates to the device to down-hole injection fluid that uses on a kind of oil field, particularly a kind of device that can inject multiple fluid simultaneously.
Background technology
In field produces, often to inject the stratum cleaning fluid to the down-hole, existing injection device once can only inject a kind of cleaning fluid, can not realize injecting simultaneously the operation of multiple cleaning fluid.Also there is complex structure in existing injection device, is not easy to the shortcoming of operating and controlling.
The utility model content
For solving the problem that prior art exists, the utility model provides a kind of fluid backward injection short joint.It has solved existing like product can not inject multiple cleaning fluid simultaneously to the down-hole problem.
Specifically, fluid backward injection short joint of the present utility model is by matrix 2, be installed in the cleaning fluid bleed pipe 1 of matrix 2 ends, be installed at least two hydraulic piston cylinders 13 that cleaning fluid is housed on the matrix 2, and the 2/2-way valve 3 that cooperates with each hydraulic piston cylinder 13 is respectively formed, the bottom of sliding plunger is a cleaning fluid cavity 12 in the hydraulic piston cylinder 13, there is the hydraulic oil that can promote piston motion the top of sliding plunger, hydraulic pressure oilhole 14 is arranged in matrix 2, hydraulic pressure oilhole 14 is communicated with the hydraulic oil inlet 11 and the 2/2-way valve 3 of hydraulic piston cylinders 13, the cleaning fluid through hole 15 that the rinse liquid outlet 10 of each hydraulic piston cylinder 13 is connected with cleaning fluid bleed pipe 1.
Preferably, fluid backward injection short joint of the present utility model is equipped with three hydraulic piston cylinders 13 and three 2/2-way valves 3 that cooperate with each hydraulic piston cylinder 13 respectively on matrix 2.
Fluid backward injection short joint of the present utility model is owing to can there be a plurality of hydraulic piston cylinders 13 that cleaning fluid is housed, so it can inject multiple cleaning fluid to the down-hole simultaneously.Again since in each hydraulic piston cylinder 13 action of sliding plungers 6 control by the 2/2-way valve 3 that cooperates with it respectively, so it can selectively inject cleaning fluid as required, and is convenient to personnel operation and controls.The utility model also has simple in structure, the advantage of reliable in action.
Description of drawings
Fig. 1 is the outside drawing of the utility model specific embodiment, and Fig. 2 is the A-A sectional view of Fig. 1, and Fig. 3 is the B-B sectional view of Fig. 2, and Fig. 4 is the enlarged drawing of hydraulic piston cylinder 13 among Fig. 2.
The specific embodiment
Below in conjunction with accompanying drawing and with best embodiment the utility model is done detailed explanation:
Consult Fig. 1, Fig. 2 and Fig. 3, the fluid backward injection short joint of present embodiment is by matrix 2, be installed in the cleaning fluid bleed pipe 1 of matrix 2 ends, be installed in three hydraulic piston cylinders 13 that cleaning fluid is housed on the matrix 2, and three 2/2-way valves that cooperate with each hydraulic piston cylinder 13 respectively 3 are formed, the bottom of sliding plunger is a cleaning fluid cavity 12 in the hydraulic piston cylinder 13, there is the hydraulic oil that can promote piston motion the top of sliding plunger, hydraulic pressure oilhole 14 is arranged in matrix 2, hydraulic pressure oilhole 14 is communicated with the hydraulic oil inlet 11 and the 2/2-way valve 3 of hydraulic piston cylinders 13, the cleaning fluid through hole 15 that also has a plurality of rinse liquid outlets 10 that make each hydraulic piston cylinder 13 respectively to be connected with cleaning fluid bleed pipe 1 in matrix 2.Described cleaning fluid bleed pipe 1 is plugged on the end of matrix 2, is provided with sealing ring between cleaning fluid bleed pipe 1 and the matrix 2.The other end of matrix 2 is used to install corollary apparatus.
Consult Fig. 4; the piston/cylinder 8 that described hydraulic piston cylinder 13 comprises over cap 4, sliding plunger 6, joint ring 7 and fixes with matrix 2; sliding plunger 6 is arranged in the piston/cylinder 8 and forms to slide up and down with piston/cylinder 8 and cooperates; the joint ring 7 that keeps sealing to contact with the inwall of piston/cylinder 8 is installed on sliding plunger 6, and over cap 4 is connected the bottom of piston/cylinder 8.Through hole 16 is arranged on over cap 4, sealing stifled 5 is arranged in the through hole 16.Hydraulic oil inlet 11 is positioned at piston/cylinder 8 near the place, top.Rinse liquid outlet 10 is between the bottom of piston/cylinder 8 and over cap 4.The outer wall of piston/cylinder 8 is provided with matrix 2 and keeps the sealing ring 9 of sealing.
Claims (8)
1, fluid backward injection short joint, it is characterized in that: it is by matrix (2), be installed in the cleaning fluid bleed pipe (1) of matrix (2) end, be installed at least two hydraulic piston cylinders (13) that cleaning fluid is housed on the matrix (2), and the 2/2-way valve (3) that cooperates with each hydraulic piston cylinder (13) is respectively formed, the bottom of the interior sliding plunger of hydraulic piston cylinder (13) is cleaning fluid cavity (12), there is the hydraulic oil that can promote piston motion the top of sliding plunger, hydraulic pressure oilhole (14) is arranged in matrix (2), hydraulic pressure oilhole (14) is communicated with hydraulic oil inlet (11) and the 2/2-way valve (3) of hydraulic piston cylinder (13), the cleaning fluid through hole (15) that the rinse liquid outlet (10) of each hydraulic piston cylinder (13) is connected with cleaning fluid bleed pipe (1).
2, fluid backward injection short joint as claimed in claim 1 is characterized in that: three hydraulic piston cylinders (13) and three 2/2-way valves (3) that cooperate with each hydraulic piston cylinder (13) respectively are installed on matrix (2).
3, fluid backward injection short joint as claimed in claim 1 or 2; it is characterized in that: the piston/cylinder (8) that described hydraulic piston cylinder (13) comprises over cap (4), sliding plunger (6), joint ring (7) and fixes with matrix (2); sliding plunger (6) is arranged in the piston/cylinder (8) and forms to slide up and down with piston/cylinder (8) and cooperates; the joint ring (7) that keeps sealing to contact with the inwall of piston/cylinder (8) is installed on sliding plunger (6), and over cap (4) is connected the bottom of piston/cylinder (8).
4, the described fluid backward injection short joint of claim 3 is characterized in that: hydraulic oil inlet (11) is positioned at piston/cylinder (8) near the place, top.
5, fluid backward injection short joint as claimed in claim 3 is characterized in that: rinse liquid outlet (10) is between the bottom of piston/cylinder (8) and over cap (4).
6, fluid backward injection short joint as claimed in claim 3 is characterized in that: through hole (16) is arranged on over cap (4), sealing stifled (5) is arranged in the through hole (16).
7, fluid backward injection short joint as claimed in claim 3 is characterized in that: the outer wall of piston/cylinder (8) is provided with the sealing ring (9) that keeps sealing with matrix (2).
8, fluid backward injection short joint as claimed in claim 1 or 2 is characterized in that: described cleaning fluid bleed pipe (1) is plugged on the end of matrix (2), is provided with sealing ring between cleaning fluid bleed pipe (1) and the matrix (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520008871 CN2775292Y (en) | 2005-03-21 | 2005-03-21 | Fluid reverse filling short section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520008871 CN2775292Y (en) | 2005-03-21 | 2005-03-21 | Fluid reverse filling short section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2775292Y true CN2775292Y (en) | 2006-04-26 |
Family
ID=36749609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520008871 Expired - Lifetime CN2775292Y (en) | 2005-03-21 | 2005-03-21 | Fluid reverse filling short section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2775292Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308567C (en) * | 2005-03-21 | 2007-04-04 | 中国海洋石油总公司 | Fluid backward injection short joint |
-
2005
- 2005-03-21 CN CN 200520008871 patent/CN2775292Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308567C (en) * | 2005-03-21 | 2007-04-04 | 中国海洋石油总公司 | Fluid backward injection short joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20050321 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |