CN103422839B - Step-difference-freeclosable closable water nozzle plug - Google Patents
Step-difference-freeclosable closable water nozzle plug Download PDFInfo
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- CN103422839B CN103422839B CN201210149710.1A CN201210149710A CN103422839B CN 103422839 B CN103422839 B CN 103422839B CN 201210149710 A CN201210149710 A CN 201210149710A CN 103422839 B CN103422839 B CN 103422839B
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Abstract
The present invention relates to a kind of Step-difference-freeclosable closable water nozzle plug, filter the stifled and drive block in the end etc. by salvaging adjusting rod, upper pressing cap, unblock spring, ceramic-lined, joint ring, water inlet to form, wherein, upper pressing cap, upper joint sleeve, lower joint sleeve and the water inlet filtration end, blocked up and be threaded successively; Salvaging adjusting rod is fixed in the chamber of upper pressing cap and upper joint sleeve composition; Stop collar is fixed in the chamber of upper joint sleeve and lower joint sleeve junction; Built-in upper press ring, limit spring, lower pressure ring, ceramic-lined, outer pottery, joint ring and seal joint successively from top to bottom in lower joint sleeve chamber; Valve rod and lower joint sleeve screwed connection, upper end embeds salvages in adjusting rod, and lower end is fixedly connected with ceramic adjusting head.This blanking plug is mainly matched in bridge type eccentric injection mandrel, realizes down-hole without differential adjustment water injection rate, and zero leakage after closing, avoid pulling extremely stifled; The closedown completely of bridge type eccentric injection mandrel when Operating Pressure is once carried out in dispensing down-hole can be realized.
Description
Technical field
The present invention relates to a kind of Step-difference-freeclosable closable water nozzle plug.
Background technology
At present, each oil field, in multilayered reservoir seperated layer water injection development process, generally uses bridge-type eccentric separate injection tubing string.Bridge-type eccentric separate injection tubing string mainly comprises packer, bridge type eccentric injection mandrel, bidirectional anchor, two ball seat, screen casing, plug etc., blanking plug is wherein used to carry out the allotment water yield in bridge type eccentric injection mandrel, it is conventional blanking plug that domestic conventional blanking plug mainly contains two kinds: one, it to be chewed at replaced on ground different-diameter water by wire Launching and Bailing and regulates water injection rate, wire Launching and Bailing is frequent, and fixing water has been chewed differential, two is adjustable blanking plugs, although achieve down-hole without differential adjustment water injection rate, but due to structure imperfection, even if still there is certain wastage after closing completely, dispensing completion tubular column can not be directly used in injection well downhole flow regulator, dispensing completion tubular column must adopt in conventional blanking plug to feign death to block up to carry out suppressing and set and verify tubing string wastage, set and wastage checking qualified after, after need being pulled out with pierce tap throw in catcher, adjustable blanking plug is dropped into again with pierce tap throw in catcher, wire Launching and Bailing workload is large, the card risk that is hampered is high, inefficiency, also the further lifting of bridge-type eccentric dispensing technical level is constrained.
Summary of the invention
For the defect that above-mentioned prior art exists, the technical problem to be solved in the present invention is to provide a kind of Step-difference-freeclosable closable water nozzle plug, realizes water filling zero leakage, and can, without differential adjustment water injection rate, avoid frequent pulling extremely stifled; Coordinate bridge type eccentric injection mandrel to be used for dispensing completion tubular column, realize the closedown completely of bridge type eccentric injection mandrel when Operating Pressure is once carried out in dispensing down-hole.
For solving the problems of the technologies described above, Step-difference-freeclosable closable water nozzle plug of the present invention, by salvaging adjusting rod 1, upper pressing cap 2, unlock spring 3, upper joint sleeve 4, cam 5, limit spring 7, lower joint sleeve 9, valve rod 10, upper press ring 11, ceramic-lined 13, joint ring 14, the end stifled 17, is filtered in water inlet, seal joint 18, pottery adjusting head 19, shop bolt 20, outer ceramic 21, limit spring 22, lower pressure ring 23, stop collar 25, drive block 27, pin 28 and bearing pin 29 form, wherein, above-mentioned upper pressing cap 2 is threaded with upper joint sleeve 4, above-mentioned upper joint sleeve 4 is threaded with lower joint sleeve 9, described lower joint sleeve 9 and water inlet are filtered the end and are blocked up and 17 to be threaded, above-mentioned salvaging adjusting rod 1 is fixed in the chamber that upper pressing cap 2 and upper joint sleeve 4 form by unlocking spring 3, stop collar 25 is fixed in the chamber of upper joint sleeve 4 lower end and junction, lower joint sleeve 9 upper end composition by precompressed limit spring 7, built-in upper press ring 11, limit spring 22, lower pressure ring 23, ceramic-lined 13, outer ceramic 21, joint ring 14 and seal joint 18 successively from top to bottom in the chamber of lower joint sleeve 9 lower end, the same side of its China and foreign countries' pottery 21, ceramic-lined 13 and lower joint sleeve 9 is provided with weep hole 12, valve rod 10 is connected with lower joint sleeve 9 buttress thread, and its upper end embeds salvages in adjusting rod 1 blind hole, and its lower end is fixedly connected with by shop bolt 20 with ceramic adjusting head 19, cam 5 is fixed in upper joint sleeve 4 by pin 28, drive block 27 is fixed on by bearing pin 29 and salvages adjusting rod 1 upper end.
Above-mentioned upper joint sleeve 4 embeds the 6th sealing ring 26 with lower joint sleeve 9 connection of thread, lower joint sleeve 9 and stop collar 25 binding site embed the first sealing ring 6, stop collar 25 and valve rod 10 binding site embed the second sealing ring 8, two the 5th sealing rings 24 are embedded outside lower joint sleeve 9, lower joint sleeve 9 and water inlet are filtered stifled 17 connection of thread in the end and are embedded the 3rd sealing ring 15, and water inlet is filtered at the end stifled 17 and embedded two the 4th sealing rings 16.
Adopt this technical scheme, sealing system is had in blanking plug of the present invention, the water yield zero leakage is realized under a certain pressure after closing completely, avoid completion tubular column setting time still need to adopt feign death in conventional blanking plug stifled, cause wire Launching and Bailing workload large, the card risk that is hampered is high, and inefficiency tentatively realizes complete casting and dragging free; With rotatable and move up and down ceramic adjusting head in this blanking plug, without fixing extreme difference, runoff investigation scope is large, and precision is high, can meet the meticulous water filling needs of geology; For the dispensing well that water injection pressure is high, can realize Operating Pressure, avoid the draining overflow cycle long, environment pollution reduces, and stratum energy loss reduces greatly; The water place of chewing adopts ceramic materials, not corrosion and scaling, and resistance to erosion ability is strong.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is the structural representation of Step-difference-freeclosable closable water nozzle plug of the present invention;
Fig. 2 is for Step-difference-freeclosable closable water nozzle plug shown in Fig. 1 is along the sectional view of A-A line;
Fig. 3 is for Step-difference-freeclosable closable water nozzle plug shown in Fig. 1 is along the sectional view of B-B line.
Detailed description of the invention
The Step-difference-freeclosable closable water nozzle plug allotment water yield of the present invention realizes as follows:
The first step, is transferred to lower position by described blanking plug pottery adjusting head 19, and as Fig. 1 shows position, outer ceramic 21, ceramic adjusting head 19, seal joint 18 and joint ring 14 form sealing system, and ensure that delivery port 12 lower end zero is missed, delivery port 12 realizes closing completely.
Second step, send in the inclined hole of bridge type eccentric injection mandrel by throwing first completely airtight blanking plug, cam 5 is stuck in step place in the inclined hole of bridge type eccentric injection mandrel, realizing blanking plug is fixed in the inclined hole of bridge type eccentric injection mandrel, as Fig. 1 and Fig. 3 shows position, the 5th sealing ring 24 and the 4th sealing ring 16 form closed system with bridge type eccentric injection mandrel.
3rd step, under enter to be configured with the separate injection tubing string of described blanking plug, in oil pipe, water filling is suppressed, and completes anchoring structure grappling and packer set.
4th step, after completion, with entering measurement and adjustment instrument device under cable, survey tune arm opens and docks with blanking plug upper transmission block 27, surface instruction makes motor rotate by cable transmission, drive drive block 27 (as Fig. 1 and 2 shows structure) and salvage adjusting rod 1 and rotate, order about valve rod 10 assembly (ceramic adjusting head 19 and shop bolt 20) to do under buttress thread in lower joint sleeve 9 and rotate and move up and down, thus realize blanking plug without differential regulating pondage, inject water and filter the end stifled 17 through oil pipe and blanking plug water inlet, blanking plug delivery port 12 enters oil pipe and casing annulus, inject water filling interval at different levels.
5th step, during inspection pipe, with entering measurement and adjustment instrument device under cable, survey tune arm opens and docks with blanking plug upper transmission block 27, surface instruction makes motor rotate by cable transmission, drive drive block 27 and salvage adjusting rod 1 and rotate, order about valve rod 10 assembly (ceramic adjusting head 19 and shop bolt 20) to do under buttress thread in lower joint sleeve 9 and rotate and move down, blanking plug pottery adjusting head 19 is transferred to lower position, position as shown in Figure 1, outer ceramic 21, pottery adjusting head 19, seal joint 18 and joint ring 14 form sealing system, ensure that delivery port 12 lower end zero is missed, delivery port 12 realizes closing completely, then tubing string is proposed, realize Operating Pressure.
Claims (2)
1. a Step-difference-freeclosable closable water nozzle plug, by salvaging adjusting rod (1), upper pressing cap (2), unlock spring (3), upper joint sleeve (4), cam (5), limit spring (7), lower joint sleeve (9), valve rod (10), upper press ring (11), ceramic-lined (13), joint ring (14), the end stifled (17), is filtered in water inlet, seal joint (18), pottery adjusting head (19), shop bolt (20), outer pottery (21), limit spring (22), lower pressure ring (23), stop collar (25), drive block (27), pin (28) and bearing pin (29) composition, it is characterized in that: described upper pressing cap (2) is threaded with upper joint sleeve (4), described upper joint sleeve (4) is threaded with lower joint sleeve (9), described lower joint sleeve (9) and water inlet filters the end block up (17) be threaded, described salvaging adjusting rod (1) is fixed in the chamber that upper pressing cap (2) and upper joint sleeve (4) form by unlocking spring (3), stop collar (25) is fixed in the chamber of upper joint sleeve (4) lower end and lower joint sleeve (9) junction, upper end composition by precompressed limit spring (7), built-in upper press ring (11), limit spring (22), lower pressure ring (23), ceramic-lined (13), outer pottery (21), joint ring (14) and seal joint (18) successively from top to bottom in the chamber of lower joint sleeve (9) lower end, the same side of its China and foreign countries' pottery (21), ceramic-lined (13) and lower joint sleeve (9) is provided with weep hole (12), valve rod (10) is connected with lower joint sleeve (9) buttress thread, and its upper end embeds salvages in adjusting rod (1) blind hole, and its lower end is fixedly connected with by shop bolt (20) with ceramic adjusting head (19), cam (5) is fixed in upper joint sleeve (4) by pin (28), drive block (27) is fixed on by bearing pin (29) and salvages adjusting rod (1) upper end.
2. Step-difference-freeclosable closable water nozzle plug according to claim 1, it is characterized in that: described upper joint sleeve (4) and lower joint sleeve (9) connection of thread embed the 6th sealing ring (26), lower joint sleeve (9) and stop collar (25) binding site embed the first sealing ring (6), stop collar (25) and valve rod (10) binding site embed the second sealing ring (8), lower joint sleeve (9) outside embeds two the 5th sealing rings (24), lower joint sleeve (9) and water inlet are filtered stifled (17) connection of thread in the end and are embedded the 3rd sealing ring (15), water inlet is filtered the end stifled (17) outside and is embedded two the 4th sealing rings (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210149710.1A CN103422839B (en) | 2012-05-15 | 2012-05-15 | Step-difference-freeclosable closable water nozzle plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210149710.1A CN103422839B (en) | 2012-05-15 | 2012-05-15 | Step-difference-freeclosable closable water nozzle plug |
Publications (2)
| Publication Number | Publication Date |
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| CN103422839A CN103422839A (en) | 2013-12-04 |
| CN103422839B true CN103422839B (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210149710.1A Active CN103422839B (en) | 2012-05-15 | 2012-05-15 | Step-difference-freeclosable closable water nozzle plug |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575192B (en) * | 2017-09-30 | 2023-05-23 | 牡丹江博实石油机械科技有限公司 | Ground adjustable injection allocation device |
| CN108590605B (en) * | 2018-05-25 | 2024-03-05 | 四川省科学城久利电子有限责任公司 | Double-head eccentric measuring and adjusting blanking plug |
| CN110905465B (en) * | 2019-12-11 | 2020-09-22 | 东北石油大学 | Magnetic coupling transmission numerical control blanking plug |
| CN112360412B (en) * | 2020-12-03 | 2023-03-31 | 中国石油天然气股份有限公司 | Intelligent water distributor with flow regulating valve capable of being thrown and fished |
| CN114109328B (en) * | 2021-11-26 | 2023-06-16 | 西南石油大学 | Start-stop bipolar adjustable constant-current blanking plug |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648407A (en) * | 2005-02-04 | 2005-08-03 | 赵学增 | Zonal water injection contanst flow packer |
| CN101089359A (en) * | 2006-06-13 | 2007-12-19 | 浙江同德电子机械有限公司 | Constant-current eccentric water distribution plug |
| CN101691835A (en) * | 2009-10-20 | 2010-04-07 | 大庆油田有限责任公司 | Layered high-pressure high-resolution adjustable water injection valve in oilfield |
| CN101806205A (en) * | 2010-03-26 | 2010-08-18 | 董力维 | Adjustable constant-flow multifunctional blanking plug |
| CN202596693U (en) * | 2012-05-15 | 2012-12-12 | 中国石油天然气股份有限公司 | Stepless differential adjusting closed water tap plug |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050103497A1 (en) * | 2003-11-17 | 2005-05-19 | Michel Gondouin | Downhole flow control apparatus, super-insulated tubulars and surface tools for producing heavy oil by steam injection methods from multi-lateral wells located in cold environments |
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2012
- 2012-05-15 CN CN201210149710.1A patent/CN103422839B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648407A (en) * | 2005-02-04 | 2005-08-03 | 赵学增 | Zonal water injection contanst flow packer |
| CN101089359A (en) * | 2006-06-13 | 2007-12-19 | 浙江同德电子机械有限公司 | Constant-current eccentric water distribution plug |
| CN101691835A (en) * | 2009-10-20 | 2010-04-07 | 大庆油田有限责任公司 | Layered high-pressure high-resolution adjustable water injection valve in oilfield |
| CN101806205A (en) * | 2010-03-26 | 2010-08-18 | 董力维 | Adjustable constant-flow multifunctional blanking plug |
| CN202596693U (en) * | 2012-05-15 | 2012-12-12 | 中国石油天然气股份有限公司 | Stepless differential adjusting closed water tap plug |
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| CN103422839A (en) | 2013-12-04 |
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