CN201574740U - Multistage device for quantitatively injecting injection liquid - Google Patents
Multistage device for quantitatively injecting injection liquid Download PDFInfo
- Publication number
- CN201574740U CN201574740U CN2009202773437U CN200920277343U CN201574740U CN 201574740 U CN201574740 U CN 201574740U CN 2009202773437 U CN2009202773437 U CN 2009202773437U CN 200920277343 U CN200920277343 U CN 200920277343U CN 201574740 U CN201574740 U CN 201574740U
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- Prior art keywords
- valve body
- socket
- left end
- fixed together
- sliding sleeve
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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 the technical field of quantitatively extruding and injecting chemical agent in oil and water wells, in particular to a multistage device for quantitatively injecting injection liquids. The multistage device comprises an oil pipe sealed with a sealing rubber plug and a position-limiting rubber plug, an external joint, a position-limit circulating valve and a diameter-expanding cylinder separated from the sealing rubber plug; the position-limit circulating valve comprises a valve body and a sliding sleeve; the left part of the valve body is provided with a circulating hole which can be communicated with the internal chamber and the external surface of the valve body; the sliding sleeve capable of blocking the circulating hole is fixedly arranged in the valve body by a shear pin; the left end of the valve body is fixedly connected with the lower end of the oil pipe; the external side of the right end of the valve body is fixedly connected with the internal side of the left end of the external joint; and the external joint is in a shape of wide left part and narrow right part and can stop the sliding sleeve from moving to the right side. The multistage device has reasonable and compact structure, is convenient for use, is used for isolating the chemical agents, displacement fluids and the pumping liquids by the oil pipe, the external joint, the position-limit circulating valve and a plurality of rubber plugs, so that the slurry is not mixed and remained on the pipe wall in the pump-injection process, thereby greatly improving the injection quality and the precisely quantitative injection of the chemical agents and the replacement fluid.
Description
One, technical field
The utility model relates to the quantitative squeeze note chemical agent of oil-water well technical field, is the quantitative injection device of a kind of multistage injection liquid.
Two, background technology
At present, in the process of carrying out the quantitative squeeze note chemical agent of oil-water well, mixing when having infusion has residually on slurry, the tube wall, can not guarantee that therefore the implantation quality of chemical agent and displacement fluid and accurate quantification inject.
Three, summary of the invention
The utility model provides a kind of multistage injection liquid quantitative injection device, has overcome the deficiency of above-mentioned prior art, and it can effectively solve existing multistage injection liquid injection device can not guarantee that the implantation quality of chemical agent and displacement fluid and accurate quantification inject problem.
The technical solution of the utility model realizes by following measure: the quantitative injection device of a kind of multistage injection liquid comprises the oil pipe, socket, spacing circulating valve and the hole enlargement tube that separates with the sealing plug that keep sealing with sealing plug and spacing plug; Spacing circulating valve comprises valve body and sliding sleeve; The circulation port that energy communicating valve intracoelomic cavity and outside are arranged at the left part of valve body, in valve body, be installed with the sliding sleeve that can block circulation port by shear pin, the left end of valve body and the lower end of oil pipe are fixed together, the right-hand member of the valve body outside is fixed together with the left end inboard of socket, and socket is the narrow shape in the left wide right side and can blocks sliding sleeve and moves right; The left end of the right-hand member of socket and hole enlargement tube is fixed together, and in the right-hand member of hole enlargement tube baffle plate is installed, and fluid hole is arranged on baffle plate, and the internal diameter of hole enlargement tube is greater than the internal diameter of socket.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Between above-mentioned socket and the hole enlargement tube spigot can be arranged, the inboard left end outside with spigot of the right-hand member of socket is fixed together, and the right-hand member outside of spigot is fixed together with the left end inboard of hole enlargement tube.
Between above-mentioned sliding sleeve and the valve body sealing ring can be installed.
The inboard, middle part of above-mentioned socket can have and is the narrow conical surface in the left wide right side, and the bottom internal diameter of the conical surface is less than the internal diameter of sliding sleeve and can stop sliding sleeve to move right.
The left end of above-mentioned valve body and the lower end of oil pipe can be fixed together by screw thread, and the right-hand member outside of valve body is fixed together by screw thread with the left end inboard of socket.
The inboard left end outside with spigot of the right-hand member of above-mentioned socket can be fixed together by screw thread.
The right-hand member outside of above-mentioned spigot can be fixed together by screw thread with the left end inboard of hole enlargement tube.
The utility model reasonable and compact in structure, easy to use, by oil pipe, socket, spacing circulating valve and a plurality of plug with chemical agent, displacement fluid with pump into liquid and separate, do not mix slurry when making infusion, tube wall is not residual, the implantation quality and the accurate quantification that have therefore greatly improved chemical agent and displacement fluid inject.
Four, description of drawings
Accompanying drawing 1 is looked the sectional structure schematic diagram for sealing plug and the master of spacing plug in oil pipe in the utility model.
Accompanying drawing 3 is looked the sectional structure schematic diagram for the master of the utility model when circulation port is not opened in fluid sealant enters the hole enlargement tube.
Accompanying drawing 4 is looked the sectional structure schematic diagram for the master of the utility model when circulation port is opened in fluid sealant enters the hole enlargement tube.
Coding in the accompanying drawing is respectively: 1 is oil pipe, and 2 are socket, and 3 are the hole enlargement tube, 4 is last sealing plug, and 5 is spacing plug, and 6 is valve body, 7 is sliding sleeve, and 8 is circulation port, and 9 is shear pin, 10 is baffle plate, and 11 is fluid hole, and 12 is displacement fluid, 13 is spigot, and 14 is the lower seal plug, and 15 for pumping into liquid, 16 is sealing ring, and 17 is the conical surface, and 18 is chemical agent.
Five, the specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
Shown in accompanying drawing 1 to 4, the quantitative injection device of this multistage injection liquid comprises oil pipe 1, socket 2, spacing circulating valve and the hole enlargement tube 3 that separates with the sealing plug that keeps sealing with sealing plug and spacing plug 5; Spacing circulating valve comprises valve body 6 and sliding sleeve 7; The circulation port 8 that energy communicating valve intracoelomic cavity and outside are arranged at the left part of valve body 6, in valve body 6, be installed with the sliding sleeve 7 that can block circulation port 8 by shear pin 9, the lower end of the left end of valve body 6 and oil pipe 1 is fixed together, the right-hand member of valve body 6 outside is fixed together with the left end inboard of socket 2, and socket 2 is the narrow shape in the left wide right side and can blocks sliding sleeve 7 and moves right; The left end of the right-hand member of socket 2 and hole enlargement tube 3 is fixed together, and baffle plate 10 is installed in the right-hand member of hole enlargement tube 3, and fluid hole 11 is arranged on baffle plate 10, and the internal diameter of hole enlargement tube 3 is greater than the internal diameter of socket 2.
Can according to actual needs the quantitative injection device of above-mentioned multistage injection liquid be made further optimization and/or improvements:
Shown in accompanying drawing 2,3,4, for the ease of connecting, between socket 2 and the hole enlargement tube 3 spigot 13 is arranged, the inboard left end outside with spigot 13 of the right-hand member of socket 2 is fixed together, and the right-hand member outside of spigot 13 is fixed together with the left end inboard of hole enlargement tube 3.
Shown in accompanying drawing 2,3,4,, between sliding sleeve 7 and the valve body 6 sealing ring 16 is installed in order to increase sealing.
Shown in accompanying drawing 2,3,4, the inboard, middle part of socket 2 has and is the narrow conical surface 17 in the left wide right side, and the right part internal diameter of the conical surface 17 is less than the internal diameter of sliding sleeve 7 and can stop sliding sleeve 7 to move right.
Shown in accompanying drawing 2,3,4, for the ease of connecting, the lower end of the left end of valve body 6 and oil pipe 1 is fixed together by screw thread, the right-hand member outside of valve body 6 is fixed together by screw thread with the left end inboard of socket 2, the inboard left end outside with spigot 13 of the right-hand member of socket 2 is fixed together by screw thread, and the right-hand member outside of spigot 13 is fixed together by screw thread with the left end inboard of hole enlargement tube 3.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The use of the utility model most preferred embodiment: in oil pipe 1, fill at least one group sealing plug at well head; every group of sealing plug comprises sealing plug 4 and lower seal plug 14; at first lower seal plug 14 is tucked in the oil pipe 1 and the maintenance sealing; inject chemical agent 18 then; to go up sealing plug 4 again is tucked in the oil pipe 1 and the maintenance sealing; inject displacement fluid 12 then; at last spacing sealing plug 5 is tucked in the oil pipe 1 and the maintenance sealing; promote spacing sealing plug 5 by pump truck with pumping into liquid 15 then; displacement fluid 12; last sealing plug 4; chemical agent 18 and lower seal plug 14 pass oil pipe 1 in regular turn; spacing circulating valve; socket 2 enters in the hole enlargement tube 3; last sealing plug 4 and lower seal plug 14 break away from sealing with hole enlargement tube 3 and are stopped by the baffle plates 10 in the hole enlargement tube 3 and stop right lateral; chemical agent 18 and displacement fluid 12 mix in hole enlargement tube 3; like this; by oil pipe 1; spacing circulating valve and hole enlargement tube 3 and at least one group the supporting use of sealing plug; make chemical agent 18; separate between displacement fluid 12 grades and with other well liquid; do not mix slurry during infusion; do not dilute; tube wall is not residual; guarantee chemical agent 18; the implantation quality of displacement fluid 12 grades, accurate quantification injects.
Claims (10)
1. the quantitative injection device of multistage injection liquid is characterized in that comprising oil pipe, socket, spacing circulating valve and the hole enlargement tube that separates with the sealing plug that keeps sealing with sealing plug and spacing plug; Spacing circulating valve comprises valve body and sliding sleeve; The circulation port that energy communicating valve intracoelomic cavity and outside are arranged at the left part of valve body, in valve body, be installed with the sliding sleeve that can block circulation port by shear pin, the left end of valve body and the lower end of oil pipe are fixed together, the right-hand member of the valve body outside is fixed together with the left end inboard of socket, and socket is the narrow shape in the left wide right side and can blocks sliding sleeve and moves right; The left end of the right-hand member of socket and hole enlargement tube is fixed together, and in the right-hand member of hole enlargement tube baffle plate is installed, and fluid hole is arranged on baffle plate, and the internal diameter of hole enlargement tube is greater than the internal diameter of socket.
2. the quantitative injection device of multistage injection liquid according to claim 1, it is characterized in that between socket and the hole enlargement tube spigot being arranged, the inboard left end outside with spigot of the right-hand member of socket is fixed together, and the right-hand member outside of spigot is fixed together with the left end inboard of hole enlargement tube.
3. the quantitative injection device of multistage injection liquid according to claim 1 and 2 is characterized in that between sliding sleeve and the valve body sealing ring being installed.
4. the quantitative injection device of multistage injection liquid according to claim 1 and 2, the inboard, middle part that it is characterized in that socket have and are the narrow conical surface in the left wide right side, and the bottom internal diameter of the conical surface is less than the internal diameter of sliding sleeve and can stop sliding sleeve to move right.
5. the quantitative injection device of multistage injection liquid according to claim 3, the inboard, middle part that it is characterized in that socket have and are the narrow conical surface in the left wide right side, and the bottom internal diameter of the conical surface is less than the internal diameter of sliding sleeve and can stop sliding sleeve to move right.
6. the quantitative injection device of multistage injection liquid according to claim 1 and 2 is characterized in that the left end of valve body and the lower end of oil pipe are fixed together by screw thread, and the right-hand member outside of valve body is fixed together by screw thread with the left end inboard of socket.
7. the quantitative injection device of multistage injection liquid according to claim 5 is characterized in that the left end of valve body and the lower end of oil pipe are fixed together by screw thread, and the right-hand member outside of valve body is fixed together by screw thread with the left end inboard of socket.
8. the quantitative injection device of multistage injection liquid according to claim 1 and 2 is characterized in that the inboard left end outside with spigot of right-hand member of socket is fixed together by screw thread.
9. the quantitative injection device of multistage injection liquid according to claim 7 is characterized in that the inboard left end outside with spigot of right-hand member of socket is fixed together by screw thread.
10. the quantitative injection device of multistage injection liquid according to claim 9 is characterized in that the right-hand member outside of spigot and the left end inboard of hole enlargement tube are fixed together by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202773437U CN201574740U (en) | 2009-12-29 | 2009-12-29 | Multistage device for quantitatively injecting injection liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202773437U CN201574740U (en) | 2009-12-29 | 2009-12-29 | Multistage device for quantitatively injecting injection liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201574740U true CN201574740U (en) | 2010-09-08 |
Family
ID=42694616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202773437U Expired - Lifetime CN201574740U (en) | 2009-12-29 | 2009-12-29 | Multistage device for quantitatively injecting injection liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201574740U (en) |
-
2009
- 2009-12-29 CN CN2009202773437U patent/CN201574740U/en not_active Expired - Lifetime
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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: 20100908 |
|
| CX01 | Expiry of patent term |