CN2861471Y - Diversion double-layer eccentric water distribution packer - Google Patents
Diversion double-layer eccentric water distribution packer Download PDFInfo
- Publication number
- CN2861471Y CN2861471Y CN 200520021400 CN200520021400U CN2861471Y CN 2861471 Y CN2861471 Y CN 2861471Y CN 200520021400 CN200520021400 CN 200520021400 CN 200520021400 U CN200520021400 U CN 200520021400U CN 2861471 Y CN2861471 Y CN 2861471Y
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- main body
- flushing
- water
- diversion
- well
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Abstract
The utility model pertains to a water packer for the layered underground affusion of oilfields, in order to inject two water nozzles once, and the smallest distance between the layered cards is 2m, to meet the requirements of high-efficiency deployment subdivided affusion; the utility model rationally is designed with part counterbore type channel structure, sharing channel type wash-down structure, unilateral sealed wash-down structure, split type wash-down reposition structure and water diversion structure, and is applied to over four layers of layered affusion pipe columns, with simple construction, convenient deployment and high efficiency advantages.
Description
Technical field: the utility model belongs to a kind of water distribution packer that is used for oil field laminated distributor under well water filling.
Background technology: the thin poor reservoir of Daqing oil field closes on high aquifer, compartment thickness is less than 2m, and the compartment thickness that the separate stratum fracfturing tubing string that inflatable packer that adopt at present in the oil field and pilot sandblast packer are formed requires is scurried interlayer greater than 2m otherwise can press, and causes pressing the back oil well moisture unusually.Close on high aquifer and interlayer less than the oil reservoir of 2m because prior art can not be transformed, have the considerable part reserves effectively not employed.
Summary of the invention: the purpose of this utility model is to realize that two water nozzles allotments of a pulling are double-deck, with lesser calorie apart from the double-deck eccentric center water-distributing packer of the water channeling type that foreshortens to 2m.
The utility model mainly by top connection, sealing ring, adapter sleeve, centralizer body, set bolt, main body, diversion well-flushing cover, return piston, valve pressure cap, T type cushion rubber, valve, valve seat, spacer ring, middle packing element, bushing pipe, limit packing element, set pin and hang, set pin, dowel bushing, deblocking pin, snap, snap extension, lock sleeve, setting sleeve, piston, connector, anti-rotation pin, support, guide way, lower contact and form.
Wherein adapter sleeve up and down respectively with top connection, main body screwed connection, centralizer body is that bolt is connected with main body, return piston is connected with main body, the contact of valve pressure cap respectively up and down, is limit packing element, spacer ring, middle packing element, spacer ring, limit packing element successively in the bushing pipe outside, and contact connects between them; Screwed connection between main body and diversion well-flushing cover, bushing pipe, dowel bushing, connector, anti-rotation pin, the support, dowel bushing up and down respectively with set that pin is hung, snap articulates to touch and is connected, set pin and hang and set the pin screwed connection, it is connected with the lock sleeve contact, dowel bushing and the screwed connection of deblocking pin, and snap articulates to touch with snap and is connected, lock sleeve and setting sleeve screwed connection, setting sleeve cooperates with the piston clearance, and support is that bolt is connected with guide way, connector and lower contact screwed connection.
There is one section hole enlargement at the centre bore middle part of main body, with the bridge-type tap hole of main body and the central passage UNICOM of main body, ingredient hole countersunk connecting structure.
Main body and diversion well-flushing cover are formed the diversion passage, and main body and bushing pipe are formed the well-flushing passage, and wherein the diversion passage forms common-use tunnel formula diversion well-flushing structure through the hole and the well-flushing passage UNICOM of valve pressure cap.
Return piston only cooperates with body seal on a surface radially, and another surface does not have and cooperates, and valve pressure cap and valve are on radially a surface and diversion well-flushing cover and valve seat sealing, and one-sided sealing well-flushing structure is formed in another surperficial nothing cooperation.
The space that two grooves on the main body and diversion well-flushing cover form is the diversion passage, and the weep hole of top, space and main body directly links, and the passage of the formation of bottom and bushing pipe and main body links, and injects water and passes through thus, forms drawing water structure.
The utlity model has following advantage:
1), the main channel, center is the reliability that concentric structure has guaranteed construction;
2), the valve breakdown action was flexible when split type well-flushing resetting structure and one-sided sealing well-flushing structure had guaranteed well-flushing, sealing is reliable;
3), part hole countersunk connecting structure and common-use tunnel formula diversion well-flushing structure saved the space, cross section, can guarantee component intensity, can reach bigger fluid area of passage.
Description of drawings:
Fig. 1 is the utility model structure diagram;
Fig. 2 is hole countersunk connecting structure transversal profile figure;
Fig. 3 is drawing water structure transversal profile figure.
The specific embodiment: the utility model is mainly by top connection 1, sealing ring 2, adapter sleeve 3, centralizer body 4, set bolt 5, main body 6, diversion well-flushing cover 7, return piston 8, valve pressure cap 9, T type cushion rubber 10, valve 11, valve seat 12, spacer ring 13, middle packing element 14, bushing pipe 15, limit packing element 16, set pin and hang 17, set pin 18, dowel bushing 19, deblocking pin 20, snap 21, snap hangs 22, lock sleeve 23, setting sleeve 24, piston 25, connector 26, anti-rotation pin 27, support 28, guide way 29, lower contact 30 is formed.
Wherein adapter sleeve 3 up and down respectively with top connection 1, main body 6 screwed connections, centralizer body 4 is that bolt is connected with main body 6, return piston 8 is connected with main body 6,9 contacts of valve pressure cap respectively up and down, in bushing pipe 15 outsides is limit packing element 16, spacer ring 13, middle packing element 14, spacer ring 13, limit packing element 16 successively, and contact connects between them; Main body 6 and diversion well-flushing cover 7, bushing pipe 15, dowel bushing 19, connector 26, anti-rotation pin 27, screwed connection between the support 28, dowel bushing 19 up and down respectively with set pin and hang 17, snap is hung 22 contacts and is connected, set pin extension 17 and set pin 18 screwed connections, it is connected with lock sleeve 23 contacts, dowel bushing 19 and 20 screwed connections of deblocking pin, snap 21 is hung 22 contacts with snap and is connected, lock sleeve 23 and setting sleeve 24 screwed connections, setting sleeve 24 and piston 25 matched in clearance, support 28 is that bolt is connected with guide way 29, connector 26 and lower contact 30 screwed connections.
There is one section hole enlargement at the centre bore middle part of main body 6, with the bridge-type tap hole of main body 6 and the central passage UNICOM of main body 6, ingredient hole countersunk connecting structure.
Main body 6 and diversion well-flushing cover 7 are formed the diversion passage, and main body 6 and bushing pipe 15 are formed the well-flushing passage, and wherein the diversion passage forms common-use tunnel formula diversion well-flushing structure through the hole and the well-flushing passage UNICOM of valve pressure cap 9.
8 of return pistons are sealed and matched with main body 6 on a surface radially, and another surface does not have and cooperates, and valve pressure cap 9 and valve 11 be on radially a surface and diversion well-flushing cover 7 and valve seat 12 sealings, and another surface does not have and cooperates, and forms one-sided sealing well-flushing structure.
The spaces that two grooves on the main body 6 and diversion well-flushing cover 7 form are the diversion passage, and the weep hole of top, space and main body 6 directly links, and the passage of the formation of bottom and bushing pipe 15 and main body 6 links, and inject water and pass through thus, form drawing water structure.
Spacer ring 13, middle packing element 14, bushing pipe 15, limit packing element 16, set that pin is hung 17, set pin 18, dowel bushing 19, deblocking pin 20, snap 21, snap hang 22, lock sleeve 23, setting sleeve 24, piston 25 constitute setting mechanisms.When setting, the oil pipe pressurization, hydraulic pressure is imported in the cylinder body that is made of lock sleeve 23 and piston 25 by the pressure guide hole of main body 6 bottoms, promote piston 25, lock sleeve 23, set pin and hang 22 and move up, set after pin 17 cut off, middle packing element 14, limit packing element 16 begin compression, finish setting.Upper lifting pipe post during deblocking, deblocking pin 20 stressed being cut off on the dowel bushing 19, snap 21 moves down, and packing element 14 and limit packing element 16 in discharging are simultaneously finished the deblocking of packer.
Inclined to one side hole on centralizer body 4, the main body 6, the part hole countersunk connecting structure of the bridge-type tap hole of main body 6 and centre bore constitutes water distribution mechanism.During water filling, partially inserting water distribution plug in the hole, liquid flow point not two inlets in main body 6 central passages enters water distribution plug, and a part goes up the water filling interval from the water injection hole on the adapter sleeve 3 then.Gutter and diversion well-flushing cover 7 drawing water structures formed of another part on the main body 6 enter in the ring-like passage of being made up of main body 6 and bushing pipe 15, enter the water layer section of making a bet from the following water injection hole that sets on the pin extension 22 at last.
Diversion well-flushing cover 7, valve pressure cap 9, T type cushion rubber 2, valve 11, valve seat 12, bushing pipe 15 are formed well-flushing mechanism.During well-flushing, valve 11 is in opening under the well-flushing action of hydraulic force, move on the valve 11 and closed conduction hole on the valve pressure cap 9, blocked the water that comes of diversion passage, flushing fluid enters the well-flushing passage of being made up of main body 6 and bushing pipe 15 simultaneously, enter the water layer section of making a bet through bushing pipe 15 and the following water injection hole that sets on the pin extension 22, finish the well-flushing function.
When on-the-spot test is used, at first flow tester is cooperated the location of finishing tester with support 28.Back, location tester has blocked the main channel, center of main body 6.This moment, the water that comes of main channel was divided into three parts.The part water yield enters the water filling interval by the last water injection hole on inlet opening, water distribution plug, the adapter sleeve 3 on last flow rate test sensor, the main body 6; A part of in addition water yield enters the down-off testing sensor by passageway bridge on the main body 6 and enters in the ring-like passage of being made up of main body 6 and bushing pipe 15 via the drawing water structures that gutter on 6 times inlet openings of main body, water distribution plug, the main body 6 and diversion well-flushing overlap 7 compositions, enters the water layer section of making a bet from the following water filling port that sets on the pin extension 17 at last.The water injection well individual layer is directly tested, and the diminishing method error is eliminated in the interlayer influence when having overcome flow allocating, makes test data more accurate.A pulling can two intervals of injection allocation, test fasterly, have improved and have surveyed the accuracy of transferring efficient and data, reduce construction intensity and work workload.
Claims (5)
1, the double-deck eccentric center water-distributing packer of water channeling type, it is characterized in that: it is mainly by top connection (1), sealing ring (2), adapter sleeve (3), centralizer body (4), set bolt (5), main body (6), diversion well-flushing cover (7), return piston (8), valve pressure cap (9), T type cushion rubber (10), valve (11), valve seat (12), spacer ring (13), middle packing element (14), bushing pipe (15), limit packing element (16), set pin and hang (17), set pin (18), dowel bushing (19), deblocking pin (20), snap (21), snap is hung (22), lock sleeve (23), setting sleeve (24), piston (25), connector (26), anti-rotation pin (27), support (28), guide way (29), lower contact (30) is formed;
Wherein adapter sleeve (3) up and down respectively with top connection (1), main body (6) screwed connection, centralizer body (4) is that bolt is connected with main body (6), return piston (8) is connected with main body (6), valve pressure cap (9) contact respectively up and down, in bushing pipe (15) outside is limit packing element (16), spacer ring (13), middle packing element (14), spacer ring (13), limit packing element (16) successively, and contact connects between them; Main body (6) and diversion well-flushing cover (7), bushing pipe (15), dowel bushing (19), connector (26), anti-rotation pin (27), screwed connection between the support (28), dowel bushing (19) up and down respectively with set pin and hang (17), snap is hung (22) contact and is connected, setting pin hangs (17) and sets pin (18) screwed connection, it is connected with lock sleeve (23) contact, dowel bushing (19) and deblocking pin (20) screwed connection, snap (21) is hung (22) contact with snap and is connected, lock sleeve (23) and setting sleeve (24) screwed connection, setting sleeve (24) and piston (25) matched in clearance, support (28) is that bolt is connected with guide way (29), connector (26) and lower contact (30) screwed connection.
2, the double-deck eccentric center water-distributing packer of water channeling type according to claim 1, its feature is that also there is one section hole enlargement at the centre bore middle part of described main body (6), with the bridge-type tap hole of main body (6) and the central passage UNICOM of main body (6), ingredient hole countersunk connecting structure.
3, the double-deck eccentric center water-distributing packer of water channeling type according to claim 1, its feature also is described main body (6) and diversion well-flushing cover (7) composition diversion passage, main body (6) and bushing pipe (15) are formed the well-flushing passage, wherein the diversion passage forms common-use tunnel formula diversion well-flushing structure through the hole and the well-flushing passage UNICOM of valve pressure cap (9).
4, the double-deck eccentric center water-distributing packer of water channeling type according to claim 1, its feature is that also described return piston (8) only is sealed and matched with main body (6) on a surface radially, another surface nothing cooperates, valve pressure cap (9) and valve (11) are formed body and are sealed with diversion well-flushing cover (7) and valve seat (12) on a surface radially, another surface does not have cooperation, forms one-sided sealing well-flushing structure.
5, the double-deck eccentric center water-distributing packer of water channeling type according to claim 1, its feature is that also the space that two grooves on the described main body (6) and diversion well-flushing cover (7) form is the diversion passage, the weep hole of top, space and main body (6) directly links, the passage of the formation of bottom and bushing pipe (15) and main body (6) links, and forms drawing water structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520021400 CN2861471Y (en) | 2005-08-09 | 2005-08-09 | Diversion double-layer eccentric water distribution packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520021400 CN2861471Y (en) | 2005-08-09 | 2005-08-09 | Diversion double-layer eccentric water distribution packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2861471Y true CN2861471Y (en) | 2007-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520021400 Expired - Lifetime CN2861471Y (en) | 2005-08-09 | 2005-08-09 | Diversion double-layer eccentric water distribution packer |
Country Status (1)
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| CN (1) | CN2861471Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287160A (en) * | 2011-08-24 | 2011-12-21 | 中国石油天然气股份有限公司 | Double blanking plug water injection packer |
| CN102900410A (en) * | 2012-10-24 | 2013-01-30 | 中国石油化工股份有限公司 | Repeated seat seal type packing water regulator |
| CN105672965B (en) * | 2016-04-14 | 2018-04-06 | 荆州市翔龙石油科技有限公司 | A kind of bridge-type separate layer water injection string and its operating procedure |
| CN108386155A (en) * | 2018-02-07 | 2018-08-10 | 中国石油天然气股份有限公司 | A kind of double eccentric integrated packers of water injection well in oil fields |
| CN111322042A (en) * | 2020-04-17 | 2020-06-23 | 四川省科学城久利电子有限责任公司 | Water distribution system for flow control and water injection measurement of first-level double strata of oil field |
-
2005
- 2005-08-09 CN CN 200520021400 patent/CN2861471Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287160A (en) * | 2011-08-24 | 2011-12-21 | 中国石油天然气股份有限公司 | Double blanking plug water injection packer |
| CN102900410A (en) * | 2012-10-24 | 2013-01-30 | 中国石油化工股份有限公司 | Repeated seat seal type packing water regulator |
| CN102900410B (en) * | 2012-10-24 | 2015-01-07 | 中国石油化工股份有限公司 | Repeated seat seal type packing water regulator |
| CN105672965B (en) * | 2016-04-14 | 2018-04-06 | 荆州市翔龙石油科技有限公司 | A kind of bridge-type separate layer water injection string and its operating procedure |
| CN108386155A (en) * | 2018-02-07 | 2018-08-10 | 中国石油天然气股份有限公司 | A kind of double eccentric integrated packers of water injection well in oil fields |
| CN108386155B (en) * | 2018-02-07 | 2020-09-18 | 中国石油天然气股份有限公司 | Double-eccentric integrated packer for water injection well of oil field |
| CN111322042A (en) * | 2020-04-17 | 2020-06-23 | 四川省科学城久利电子有限责任公司 | Water distribution system for flow control and water injection measurement of first-level double strata of oil field |
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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 |
Expiration termination date: 20150809 Granted publication date: 20070124 |
|
| EXPY | Termination of patent right or utility model |