CN101787875A - Quantitative injection method of multi-level injection liquid - Google Patents
Quantitative injection method of multi-level injection liquid Download PDFInfo
- Publication number
- CN101787875A CN101787875A CN200910113618A CN200910113618A CN101787875A CN 101787875 A CN101787875 A CN 101787875A CN 200910113618 A CN200910113618 A CN 200910113618A CN 200910113618 A CN200910113618 A CN 200910113618A CN 101787875 A CN101787875 A CN 101787875A
- Authority
- CN
- China
- Prior art keywords
- socket
- oil pipe
- left end
- fixed together
- spacing
- 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.)
- Granted
Links
Images
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Check Valves (AREA)
Abstract
The invention relates to a quantitative injection method of multi-level injection liquid, belonging to the technical field of quantitative chemical agent extruding injection of oil-water wells. The quantitative injection method comprises the following steps of: firstly fixedly connecting the lower end of an oil pipe with the left end of a limiting circulation valve together; fixedly connecting the outer side of the right end of the limiting circulation valve with the inner side of the left end of an outer joint together; fixedly connecting the right end of the outer joint with the left end of a diameter expansion drum together, wherein the inner diameter of the diameter expansion drum is larger than that of the outer joint; then sequentially stuffing at least one group of sealed rubber plugs into the oil pipe, wherein each group of sealed rubber plugs includes upper sealed rubber plugs and lower sealed rubber plugs; first stuffing the lower sealed rubber plugs into the oil pipe to keep sealed, then injecting a chemical agent, and stuffing the upper sealed rubber plugs into the oil pipe to keep sealed. The invention has reasonable and compact structure and convenient use and separates the chemical agent and displacing liquid from well flushing fluid and well control fluid through the at least one group of sealed rubber plugs without slurry mixing during pump injection and residuals on a pipe wall, thereby greatly enhancing the injection quality and the precise quantitative injection of the chemical agent and the displacing liquid.
Description
One, technical field
The present invention relates to the quantitative squeeze note chemical agent of oil-water well technical field, is a kind of quantitative injection method of multi-level 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 invention provides a kind of quantitative injection method of multi-level injection liquid, overcome the deficiency of above-mentioned prior art, it can effectively solve the existing liquid injection device that injects can not guarantee the implantation quality of chemical agent and displacement fluid and the problem that accurate quantification injects.
Technical scheme of the present invention realizes by following measure: a kind of quantitative injection method of multi-level injection liquid, at first the lower end of oil pipe and the left end of spacing circulating valve are fixed together, the right-hand member outside of spacing circulating valve and the left end inboard of socket are fixed together; The right-hand member of socket and the left end of hole enlargement tube are fixed together, the internal diameter of hole enlargement tube is greater than the internal diameter of socket, be tucked at least one group sealing plug in the oil pipe successively then, every group of sealing plug comprises sealing plug and lower seal plug, at first the lower seal plug is tucked in the oil pipe and the maintenance sealing, inject chemical agent then, to go up the sealing plug again is tucked in the oil pipe and the maintenance sealing, inject displacement fluid then, at last spacing sealing plug is tucked in the oil pipe and the maintenance sealing, then by pump truck with washing, well killing fluid promotes spacing sealing plug, displacement fluid, last sealing plug, chemical agent and lower seal plug pass oil pipe in regular turn, spacing circulating valve, socket enters in the hole enlargement tube, last sealing plug and lower seal plug and hole enlargement tube break away from sealing and are stopped by the baffle plate in the hole enlargement tube and stop right lateral, and chemical agent and displacement fluid mix in the hole enlargement tube.
Be further optimization and/or improvements below to the foregoing invention technical scheme:
Above-mentioned spacing circulating valve can comprise 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 shape wide at the top and narrow at the bottom 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.
Can there be the positive stop lug boss that can be stuck in the sliding sleeve top upper end of above-mentioned spacing sealing plug, chemical agent and displacement fluid continue right lateral to squeeze note well section by fluid hole and carry out the squeeze note operation, the positive stop lug boss of spacing sealing plug was stuck in the sliding sleeve top after the squeeze note operation finished, by pump truck with wash, well killing fluid promotes positive stop lug boss and cuts off shear pin and make the sliding sleeve right lateral that circulation port is opened, and carries out pressure release work in the oil pipe by circulation port at last.
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.
Above-mentioned spacing sealing plug, on seal plug and the lower seal plug all can comprise the body of rod and be skewed joint ring, fixed interval has at least two joint ring on the body of rod, the inner and the body of rod of joint ring are fixed together, and the outer end of joint ring can keep sealing with oil pipe, spacing circulating valve, socket and spigot.
Above-mentioned sealing plug can be one group.
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 right part 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, 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 socket is fixed together by screw thread, and the right-hand member outside of spigot is fixed together by screw thread with the left end inboard of hole enlargement tube.
Reasonable and compact in structure of the present invention, easy to use, by at least one group sealing plug with chemical agent, displacement fluid and wash, well killing fluid separates, and 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 sealing plug and the master of spacing sealing plug in oil pipe among the present invention.
Accompanying drawing 2 is looked the sectional structure schematic diagram for spacing circulating valve, socket, the master when spigot is connected with the hole enlargement tube among the present invention.
Accompanying drawing 3 is looked the sectional structure schematic diagram for the master of the present invention when the sealing fluid sealant enters that circulation port is not opened in the hole enlargement tube.
Accompanying drawing 4 is looked the sectional structure schematic diagram for the master of the present invention when the sealing fluid sealant enters that circulation port is opened in 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, and 4 is the lower seal plug, 5 is spacing fluid sealant plug, and 6 is valve body, and 7 is sliding sleeve, and 8 is circulation port, 9 is shear pin, and 10 is baffle plate, and 11 is fluid hole, and 12 is positive stop lug boss, 13 is spigot, and 14 is the body of rod, and 15 is joint ring, 16 is sealing ring, and 17 is the conical surface, and 18 is chemical agent, 19 is displacement fluid, 20 for wash, well killing fluid, 21 is last sealing plug.
Five, the specific embodiment
The present invention is not subjected to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and actual conditions.
Below in conjunction with embodiment and accompanying drawing the present invention is further described:
Shown in accompanying drawing 1 to 4, this quantitative injection method of multi-level injection liquid at first is fixed together the lower end of oil pipe 1 and the left end of spacing circulating valve, and the right-hand member outside of spacing circulating valve and the left end inboard of socket 2 are fixed together; The right-hand member of socket 2 and the left end of hole enlargement tube 3 are fixed together; the internal diameter of hole enlargement tube 3 is greater than the internal diameter of socket 2; be tucked at least one group sealing plug in the oil pipe successively then; every group of sealing plug comprises sealing plug 21 and lower seal plug 4; at first lower seal plug 4 is tucked in the oil pipe 1 and the maintenance sealing; inject chemical agent 18 then; to go up sealing plug 21 again is tucked in the oil pipe 1 and the maintenance sealing; inject displacement fluid 19 then; at last spacing sealing plug 5 is tucked in the oil pipe 1 and the maintenance sealing; then by pump truck with washing; well killing fluid 20 promotes spacing sealing plug 5; displacement fluid 19; last sealing plug 21; chemical agent 18 and lower seal plug 4 pass oil pipe 1 in regular turn; spacing circulating valve; socket 2 enters in the hole enlargement tube 3; last sealing plug 21 and lower seal plug 4 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 19 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 19 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 19 grades, accurate quantification injects.
Can according to actual needs above-mentioned quantitative injection method of multi-level injection liquid be made further optimization and/or improvements:
Shown in accompanying drawing 2,3,4, 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 shape wide at the top and narrow at the bottom 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.
Shown in accompanying drawing 2,3,4, left end at spacing sealing plug 5 has the positive stop lug boss 12 that can be stuck in sliding sleeve 7 tops, chemical agent 18 and displacement fluid 19 continue right lateral to squeeze note well section by fluid hole 11 and carry out the squeeze note operation, the positive stop lug boss 12 of spacing sealing plug 5 was stuck in sliding sleeve 7 tops after the squeeze note operation finished, by pump truck with wash, well killing fluid 20 promotes positive stop lug boss 12 and cuts off shear pin 9 and make sliding sleeve 7 right laterals that circulation port 8 is opened, and carries out pressure release work in the oil pipe 1 by circulation port 8 at last.Like this, when spacing sealing plug 5 arrived the sliding sleeve 7 of spacing circulating valve, the positive stop lug boss 12 of its left end was cut off shear pin 9 on the sliding sleeve 7, sliding sleeve 7 right laterals, and circulation port 8 is opened, and oil pipe 1 pressure release can positive and negative circulation well cleanup.
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 1,2,3,4, spacing sealing plug 5, on seal plug 21 and lower seal plug 4 includes the body of rod 14 and is skewed joint ring 15, fixed interval has at least two joint ring 15 on the body of rod 14, the inner of joint ring 15 and the body of rod 14 are fixed together, the outer end of joint ring 15 can keep sealing with oil pipe 1, spacing circulating valve, socket 2 and spigot 13, can reach better sealing like this.
Shown in accompanying drawing 2,3,4, according to actual conditions, the sealing plug can be one group.
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 invention, 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.
Claims (10)
1. a quantitative injection method of multi-level injection liquid is characterized in that at first the lower end of oil pipe and the left end of spacing circulating valve being fixed together, and the right-hand member outside of spacing circulating valve and the left end inboard of socket are fixed together; The right-hand member of socket and the left end of hole enlargement tube are fixed together, the internal diameter of hole enlargement tube is greater than the internal diameter of socket, be tucked at least one group sealing plug in the oil pipe successively then, every group of sealing plug comprises sealing plug and lower seal plug, at first the lower seal plug is tucked in the oil pipe and the maintenance sealing, inject chemical agent then, to go up the sealing plug again is tucked in the oil pipe and the maintenance sealing, inject displacement fluid then, at last spacing sealing plug is tucked in the oil pipe and the maintenance sealing, then by pump truck with washing, well killing fluid promotes spacing sealing plug, displacement fluid, last sealing plug, chemical agent and lower seal plug pass oil pipe in regular turn, spacing circulating valve, socket enters in the hole enlargement tube, last sealing plug and lower seal plug and hole enlargement tube break away from sealing and are stopped by the baffle plate in the hole enlargement tube and stop right lateral, and chemical agent and displacement fluid mix in the hole enlargement tube.
2. quantitative injection method of multi-level injection liquid according to claim 1 is characterized in that 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 shape wide at the top and narrow at the bottom 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.
3. quantitative injection method of multi-level injection liquid according to claim 2, there is the positive stop lug boss that can be stuck in the sliding sleeve top upper end that it is characterized in that spacing sealing plug, chemical agent and displacement fluid continue right lateral to squeeze note well section by fluid hole and carry out the squeeze note operation, the positive stop lug boss of spacing sealing plug was stuck in the sliding sleeve top after the squeeze note operation finished, by pump truck with wash, well killing fluid promotes positive stop lug boss and cuts off shear pin and make the sliding sleeve right lateral that circulation port is opened, and carries out pressure release work in the oil pipe by circulation port at last.
4. according to claim 1 or 2 or 3 described quantitative injection method of multi-level injection liquid, 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.
5. according to claim 1 or 2 or 3 described quantitative injection method of multi-level injection liquid, it is characterized in that spacing sealing plug, on seal plug and the lower seal plug includes the body of rod and is skewed joint ring, fixed interval has at least two joint ring on the body of rod, the inner and the body of rod of joint ring are fixed together, and the outer end of joint ring can keep sealing with oil pipe, spacing circulating valve, socket and spigot.
6. quantitative injection method of multi-level injection liquid according to claim 4, it is characterized in that spacing sealing plug, on seal plug and the lower seal plug includes the body of rod and is skewed joint ring, fixed interval has at least two joint ring on the body of rod, the inner and the body of rod of joint ring are fixed together, and the outer end of joint ring can keep sealing with oil pipe, spacing circulating valve, socket and spigot.
7. quantitative injection method of multi-level injection liquid according to claim 6, it is characterized in that sealing plug is one group.
8. quantitative injection method of multi-level injection liquid according to claim 7 is characterized in that between sliding sleeve and the valve body sealing ring being installed.
9. quantitative injection method of multi-level injection liquid according to claim 8, 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 right part internal diameter of the conical surface is less than the internal diameter of sliding sleeve and can stop sliding sleeve to move right.
10. quantitative injection method of multi-level injection liquid according to claim 9, it is characterized in that the left end of valve body and the lower end of oil pipe are fixed together by screw thread, 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 socket is fixed together by screw thread, and the right-hand member outside of spigot is fixed together by screw thread with the left end inboard of hole enlargement tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910113618.8A CN101787875B (en) | 2009-12-29 | 2009-12-29 | Quantitative injection method of multi-level injection liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910113618.8A CN101787875B (en) | 2009-12-29 | 2009-12-29 | Quantitative injection method of multi-level injection liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101787875A true CN101787875A (en) | 2010-07-28 |
| CN101787875B CN101787875B (en) | 2014-01-01 |
Family
ID=42531235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910113618.8A Active CN101787875B (en) | 2009-12-29 | 2009-12-29 | Quantitative injection method of multi-level injection liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101787875B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111905950A (en) * | 2020-06-16 | 2020-11-10 | 广汽新能源汽车有限公司 | Quantitative injection device, quantitative paint injection system and quantitative paint injection method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2059937U (en) * | 1989-08-29 | 1990-08-01 | 大庆石油管理局钻井研究所 | Double-stage cement pouring device |
| CA1300002C (en) * | 1986-10-06 | 1992-05-05 | Brian George Buchanan | Adjustable and retrievable multiple point steam injection system |
| CN101482001A (en) * | 2008-01-11 | 2009-07-15 | 中国石油化工股份有限公司 | Rubber plug system used for drilling liner cementing of horizontal well |
-
2009
- 2009-12-29 CN CN200910113618.8A patent/CN101787875B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1300002C (en) * | 1986-10-06 | 1992-05-05 | Brian George Buchanan | Adjustable and retrievable multiple point steam injection system |
| CN2059937U (en) * | 1989-08-29 | 1990-08-01 | 大庆石油管理局钻井研究所 | Double-stage cement pouring device |
| CN101482001A (en) * | 2008-01-11 | 2009-07-15 | 中国石油化工股份有限公司 | Rubber plug system used for drilling liner cementing of horizontal well |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111905950A (en) * | 2020-06-16 | 2020-11-10 | 广汽新能源汽车有限公司 | Quantitative injection device, quantitative paint injection system and quantitative paint injection method |
| CN111905950B (en) * | 2020-06-16 | 2023-09-12 | 广汽新能源汽车有限公司 | Quantitative injection device, quantitative paint injection system and quantitative paint injection method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101787875B (en) | 2014-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101761319B (en) | Method for injecting injection fluid by outside-tube chemical packer | |
| CN208885235U (en) | A kind of horizontal well drag fracturing tubing string and its tail end packer | |
| CN203008849U (en) | Tube external self-sealing stage collar device | |
| CN112917660B (en) | Efficient anti-blocking backflow grouting pipe and method | |
| CN101787875B (en) | Quantitative injection method of multi-level injection liquid | |
| CN105569607B (en) | A kind of oil field electric submerged pump production oil well Multifunctional well-flushing valve | |
| CN201574740U (en) | Multistage device for quantitatively injecting injection liquid | |
| CN1944946A (en) | Upward pushing type expansion pipe well repairing device | |
| CN207812451U (en) | A kind of circulating mechanical packer | |
| CN200984579Y (en) | Pipeline dredging device | |
| CN205532479U (en) | Oil field electrical submersible pump pump production oil well is with multi -functional well -flushing valve | |
| CN203347735U (en) | Self-checking and self-sealing releasing packer | |
| CN202673264U (en) | Downhole automatic chemical dosing device for oil well | |
| CN212405207U (en) | Same-hole multiple slurry injection machine | |
| CN203626794U (en) | Two-staged differential pressure sliding sleeve | |
| CN201786328U (en) | Super oil well swab | |
| CN202117647U (en) | Anti-flow-splitting bridge type eccentric water distributor for well cleanup | |
| CN201521255U (en) | Novel anti-splash joint | |
| CN213928311U (en) | High-efficiency operation aggregate device | |
| CN100544842C (en) | pipeline dredging device | |
| CN205297418U (en) | Oil draining anchoring device of oil pipe | |
| CN214145445U (en) | Prevent mixing integral type cementing head who scurries | |
| CN215520095U (en) | Slurry storage tank for repairing concrete cracks through chemical grouting | |
| CN203570264U (en) | Cavity sleeved type reverse circulation valve | |
| CN214302899U (en) | Assembled grout compensation arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |