CN201513154U - Water distribution packer, setting core and water distribution core - Google Patents
Water distribution packer, setting core and water distribution core Download PDFInfo
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- CN201513154U CN201513154U CN2009202402475U CN200920240247U CN201513154U CN 201513154 U CN201513154 U CN 201513154U CN 2009202402475 U CN2009202402475 U CN 2009202402475U CN 200920240247 U CN200920240247 U CN 200920240247U CN 201513154 U CN201513154 U CN 201513154U
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- water distribution
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- distributing core
- flow regulator
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Abstract
The utility model discloses a water distribution packer, a setting core and a water distribution core, which are used in the petroleum industry and are suitable for the delamination and the water filling operation of a water filing well. The water distribution packer comprises a water distribution part and a packing part, wherein the water distribution part comprises an upper layer water distributor and a lower layer water distributor, the upper layer water distributor and the lower layer water distributor are connected through an upper center pipe, and the packing part is connected under the lower layer water distributor. An upper water distribution core and a lower water distribution core of the setting core used for the packer setting are connected through screw threads, and the lower end surface of the lower water distribution core connecting a step is matched with the upper end surface of an inner center pipe of the water distribution packer. An upper water distribution core and a lower water distraction core of the water distribution cores sued for water distribution are connected through screw threads, and the lower end surface of the lower water distribution core connecting the step is matched with the upper end surface of the inner center pipe of the water distribution packer. The utility model shortens the length of the setting core and the water distribution core, is convenient for drop pulling and test, realizes the integrated water distribution and test, simplifies the test process, and reduces the test work load.
Description
Technical field
The utility model belongs to the underground water-injection instrument of petroleum industry, and particularly a kind of water distribution packer and set fuse and water distributing core is applicable to that water injection well carries out layering and water filling operation.
Background technology
Old filed is through the exploitation of decades, and integral body enters ultra-high water cut stage, and main output transfers thin, the difference oil reservoir that transfers the non-main force in the layer, by major oil reservoir to by interlayer.It is many vertically to go up oil-bearing series, serious heterogeneity, and big section of thick oil pay closes to annotate and causes high permeability formation to inject Shuitu to advance, and the water logging phenomenon is serious, and interlayer difference causes potentiality fascicule remaining oil enrichment district effectively to inject, the water-driven weak effect, reserves are employed unbalanced.Need carry out subdivision injection, effectively water filling, reduce invalid water filling, improve water-injection efficiency, need carry out the fascicule meticulous water filling of recombinating, improve the waterflooding development effect of unit.
The The Technology of Layered Water Injection of field use mainly contains eccentric and hollow two types at present.Tested person, allocating technology technology limitation, though eccentric separate zone waterflooding technology can be realized the infinite stages layering in theory, the injection well downhole flow regulator spacing must remain on more than the 8m; Hollow zonal injection technology technology can only the dispensing layer 2-4, all can not satisfy the requirement of subdivision injection.Therefore, need design studies packing injection well downhole flow regulator, realize integrated subdivision injection.
The patent No. is 94204681.1 injection well downhole flow regulator, water nozzle design on the fuse center line, can only water filling, can not descend instrument test, fuse need be pulled out during test, change the water filling duty, complex process.And outlet system does not design throttling arrangement and is unfavorable for packer sealing.Not possessing easy sand plug of one-way valve mechanism and interlayer gangs up.
Summary of the invention
The purpose of this utility model provides a kind of water distribution packer and sets fuse and water distributing core, realizes integrated subdivision injection, improves water-injection efficiency.Water injection technology is simplified in convenient test.
The present technique solution can realize above-mentioned purpose:
A kind of water distribution packer comprises water distribution part and packing part, and water distribution partly comprises upper strata injection well downhole flow regulator and lower floor's injection well downhole flow regulator, and the upper strata injection well downhole flow regulator is connected by upper center tube with the lower floor injection well downhole flow regulator, packing partly is connected the below of lower floor's injection well downhole flow regulator.
The fuse that sets that cooperates with the water distribution packer comprises water distributing core and following water distributing core, last water distributing core and following water distributing core screwed connection, and it cooperates with the upper surface of water distribution packer inner central tube lower surface of water distributing core connection step down; Last water distributing core is provided with pressure transmission hole, be provided with lower floor's water nozzle on the water distributing core down, the bottom of following water distributing core connects plug, the external diameter of following water distributing core is less than the internal diameter of inner central tube, pressure transmission hole aligns with the top inlet opening of upper center tube, the annular space that water distributing core and inner central tube formed under lower floor's water nozzle was arranged in.
The water distributing core that cooperates with the water distribution packer comprises water distributing core and following water distributing core, last water distributing core and following water distributing core screwed connection, and it cooperates with the upper surface of water distribution packer inner central tube lower surface of water distributing core connection step down; Last water distributing core is provided with upper strata water nozzle, pressure transmission hole, middle level water nozzle; Following water distributing core is provided with lower floor's water nozzle, bottom in following water distributing core connects plug, the external diameter of following water distributing core is less than the internal diameter of inner central tube, the upper strata water nozzle aligns with the top inlet opening of upper center tube, the middle level water nozzle aligns with the bottom inlet opening of upper center tube, the annular space that water distributing core and inner central tube formed under lower floor's water nozzle was arranged in.
The utility model compared with prior art has following useful effect: for reaching the purpose of dwindling packer card distance, subdivision injection, adopt integrated water distribution, with packing part and the design of water distribution sectoral integration, dwindle and block distance between the packer, adopting two-stage the utility model to add the one-level layer separating packer is used in combination, lesser calorie can be realized 5 layers of subdivision injection of dispensing apart from reaching 1.2m.One-level water distribution packer can be controlled 2 layers～3 layers layering water distribution simultaneously, has realized integrated water distribution and test, has simplified test technology, has reduced the test job amount.Make full use of the effect of well-flushing passage, upper and lower two injection well downhole flow regulators are all designed above instrument, shortened the length that sets fuse and water distributing core, be convenient to pulling and test.The utility model reliable operation, technology is simple, and what guaranteed packer sets effect and flood effectiveness.Improve water-injection efficiency, reduced cost of production, guaranteed oil displacement efficiency.
Description of drawings
Structural representation when Fig. 1 sets for the utility model.
Structural representation when Fig. 2 is the utility model water filling.
Among the figure: top connection 1, last water distribution spring 2, upper center tube 3, water distributing core 4, last water distribution piston 5, upper strata water nozzle 6, deblocking shear pin 7, last injection well downhole flow regulator piston rod 8, pressure transmission hole 9, well-flushing cover 10, well-flushing piston 11, outer adapter sleeve 12, following injection well downhole flow regulator piston rod 13, middle level water nozzle 14, following water distribution piston 15, following water distribution spring 16, following water distributing core 17, adjustable ring 18, inner central tube 19, glue tube base 20, exterior central tube 21, packing element 22, pressure cap 23, set lock dog 24, lower floor's water nozzle 25, deblocking lock dog 26, plug 27, lock tube 28, snap ring 29, snap ring seat 30, set piston 31, security control shear pin 32, lower baffle ring 33, lower contact 34.
The specific embodiment
Below in conjunction with embodiment the utility model is done further detailed description: referring to Fig. 1, a kind of water distribution packer, comprise water distribution part and packing part, water distribution partly comprises upper strata injection well downhole flow regulator and lower floor's injection well downhole flow regulator, the upper strata injection well downhole flow regulator is connected by central tube 3 with the lower floor water distribution, packing partly is connected the below of lower floor's injection well downhole flow regulator.The upper strata injection well downhole flow regulator comprises top connection 1, goes up water distribution spring 2, goes up water distribution piston 5 and last injection well downhole flow regulator piston rod 8, and last water distribution spring 2 is installed on the upper center tube 3, is between top connection 1 and the last water distribution piston 5; Last injection well downhole flow regulator piston rod 8 designs have control flume, and deblocking shear pin 7 is installed, and deblocking shear pin 7 links together last injection well downhole flow regulator piston rod 8 and well-flushing cover 10.Last injection well downhole flow regulator piston rod 8, well-flushing cover 10 and outer adapter sleeve 12 are linked in sequence, and well-flushing cover 10 is provided with inlet opening, last injection well downhole flow regulator piston rod 8 and outside installation well-flushing piston 11 in the annular space between the adapter sleeve 12.The bottom cylindrical of well-flushing piston 11 cooperates with circle in the top of outer adapter sleeve 12, and its middle part cylindrical aligns less than the inlet opening of top cylindrical with well-flushing cover 10.Lower floor's injection well downhole flow regulator comprises injection well downhole flow regulator piston rod 13, following water distribution piston 15, following water distribution spring 16, following water distributing core 17 and adjustable ring 18 down, following water distribution piston 15 is installed in down in the lower lumen of injection well downhole flow regulator piston rod 13, water distribution spring 16 under installing between adjustable ring 18 and the following water distribution piston 15, lower floor's injection well downhole flow regulator integral installation are outside in the adapter sleeve 12.The maximum outside diameter of following injection well downhole flow regulator piston rod 13 is less than the internal diameter of outer adapter sleeve 12.Lower floor's injection well downhole flow regulator water outlet at first enter into by upper center tube 3, inner central tube 19 and outer adapter sleeve 12, exterior central tube 21 form the well-flushing passage in.Upper center tube 3 is provided with top inlet opening, pressure transmission hole and middle part inlet opening, and upper center tube 3 is connected with the inner central tube 19 of packing part.The internal diameter of inner central tube 19 is less than the internal diameter of upper center tube 3, and its upper surface is an inner conical surface.The fuse that sets of the present utility model comprises water distributing core 4 and following water distributing core 17, last water distributing core 4 and following water distributing core 17 screwed connections, and it cooperates with inner central tube 19 upper surfaces of water distribution packer lower surface of water distributing core 17 connection steps down; Last water distributing core 4 is provided with pressure transmission hole 9; Be provided with lower floor's water nozzle 25 on the water distributing core 17 down, its bottom connects plug 27; The external diameter of following water distributing core 17 is less than the internal diameter of inner central tube 19, and pressure transmission hole 9 aligns with the top inlet opening of upper center tube 3, the annular space that water distributing core 17 and inner central tube 19 formed under lower floor's water nozzle 25 was arranged in.Be the needs that set of water distribution packer, do not establish the installing hole of upper strata water nozzle 6 and middle level water nozzle 14 in setting fuse, design has pressure transmission hole 9 on the last water distributing core 4, realizes closing the function of well-flushing piston 11.Referring to Fig. 2, water distributing core of the present utility model comprises water distributing core 4 and following water distributing core 17, last water distributing core 4 and following water distributing core 17 screwed connections, and it cooperates with the upper surface of water distribution packer inner central tube 19 lower surface of water distributing core 17 connection steps down; Last water distributing core 4 is provided with upper strata water nozzle 6, pressure transmission hole 9 and middle level water nozzle 14; Be provided with lower floor's water nozzle 25 on the water distributing core 17 down, connecting plug 27 in its bottom; The external diameter of following water distributing core 17 is less than the internal diameter of inner central tube 19, upper strata water nozzle 6 aligns with the top inlet opening of upper center tube 3, middle level water nozzle 14 aligns with the bottom inlet opening of upper center tube 3, the annular space that water distributing core 17 and inner central tube 19 formed under lower floor's water nozzle 25 was arranged in.Last water distributing core 4, upper strata water nozzle 6, middle level water nozzle 14, following water distributing core 17, lower floor's water nozzle 25, plug 27 constitute incorporate water distributing core, realize three layers of water distribution of upper, middle and lower.Pressure transmission hole 9 respectively and between the upper strata water nozzle 6, middle level water nozzle 14 design three seals circle, the section of sealing ring are arranged be circle, also can be other shapes, as square, prismatic, triangle etc.
Packing of the present utility model partly comprises inner central tube 19, glue tube base 20, exterior central tube 21, packing element 22, pressure cap 23, sets lock dog 24, deblocking lock dog 26, lock tube 28, snap ring 29, snap ring seat 30, set the packing part that piston 31, security control shear pin 32, lower baffle ring 33 and lower contact 34 constitute these packers.Packing element 22 is enclosed within on the glue tube base 20, and glue tube base 20 and exterior central tube 21 screwed connections have groove to place and set lock dog 24 and deblock piece 26 on the exterior central tube 21.The other end of deblocking lock dog 26 is stuck in the groove of the snap ring seat 30 that snap ring 29 is housed.Pressure cap 23 is enclosed within on the exterior central tube 21 and lock tube 28 screwed connections, lock tube 28 with set piston 31 screwed connections, lower baffle ring 33 with set piston 31, lower contact 34 is connected, security control shear pin 32 will set piston 31 and lower contact 34 links together.Packing part and upper center tube 3, deblocking shear pin 7, upward injection well downhole flow regulator piston rod 8, well-flushing cover 10, well-flushing piston 11 and 12 actings in conjunction of outer adapter sleeve realize the effect of the packing of packing injection well downhole flow regulator, water filling, anti-flushing well, deblocking.
Of the present utility model setting seen Fig. 1: drop into before this water distribution packer is gone into the well and set fuse, make the connection step of the following water distributing core 17 that sets fuse, be sitting in the upper surface of inner central tube 19.This water distribution packer is connected with other kit oil pipes, behind design attitude, beats hydraulic setting down from inner chamber.Highly pressurised liquid acts on well-flushing piston 11 upper ends by the pressure transmission hole 9 on the last water distributing core 4, and it is descending to promote well-flushing piston 11.The well-flushing passage that sealing is made up of upper center tube 3, inner central tube 19 and outer adapter sleeve 12, exterior central tube 21; Highly pressurised liquid acts on by the pressure transmission hole on the inner central tube 19 and sets on the piston 31.When pressure reaches certain value, promote to set piston 31 and cut off security control shear pin 32, it is up to set piston 31, drives lock tube 28 and pressure cap 23 up compression packing elements 22, makes its radial deformation; Meanwhile, snap ring 29 enters in the sawtooth button of lock tube 28, and the packing element 22 of locking radial deformation makes this water distribution packer seal oil sets annular space all the time.
Water filling of the present utility model is seen Fig. 2: set and finish, pull out and set fuse, promptly set fuse among Fig. 1.Drop into water distributing core, promptly the water distributing core among Fig. 2 gets final product normal water filling.The upper strata water yield is injected water and is promoted to go up water distribution spring 2 in the 5 up compressions of injection well downhole flow regulator piston by 6 controls of the upper strata water nozzle on the last water distributing core 4, injects the stratum then; The middle level water yield promotes the water distribution spring 16 down of injection well downhole flow regulator piston 15 compressions down by middle level water nozzle 14 controls of last water distributing core 4, enters the middle level by the water outlet of well-flushing passage; Lower floor's water yield is entered lower floor's throttle switch by the oil pipe that is connected with the utility model and is injected lower floor by 25 controls of the lower floor's water nozzle on the following water distributing core 17, realizes three layers of water distribution.If have only two-layer water distribution, water distributing core 17 and plug 27 get final product under removing.
Well-flushing of the present utility model, see Fig. 2: the well head highly pressurised liquid acts on the well-flushing piston 11 by the inlet opening on the well-flushing cover 10, and it is up to promote well-flushing piston 11, opens the well-flushing passage.Highly pressurised liquid passes water hole on the exterior central tube 21 by the well-flushing passage, passes the weep hole on the lock tube 28, enters the oil sets annular space of cartridge below 22, and ball valve returns out ground from oil pipe through the bottom.
Deblocking of the present utility model, see Fig. 2: direct upper lifting pipe post, top connection 1 drives on upper center tube 3, the inner central tube 19 and moves, exterior central tube 21 keeps motionless because of the frictional force of cartridge 22 and sleeve pipe, cuts off deblocking shear pin 7, and deblocking lock dog 26 is released, lock tube 28, snap ring 29, snap ring seat 30 lose support, descending under cartridge 22 rebound effects, cartridge 22 retractions, the utility model deblocking.
Claims (10)
1. water distribution packer, comprise water distribution part and packing part, it is characterized in that water distribution partly comprises upper strata injection well downhole flow regulator and lower floor's injection well downhole flow regulator, the upper strata injection well downhole flow regulator is connected by upper center tube (3) with the lower floor injection well downhole flow regulator, packing partly is connected the below of lower floor's injection well downhole flow regulator.
2. a kind of water distribution packer according to claim 1, it is characterized in that the upper strata injection well downhole flow regulator comprises top connection (1), goes up water distribution spring (2), goes up water distribution piston (5) and last injection well downhole flow regulator piston rod (8), last water distribution spring (2) is installed on the upper center tube (3), is between top connection (1) and the last water distribution piston (5); Last injection well downhole flow regulator piston rod (8) design has control flume, and deblocking shear pin (7) is installed, and deblocking shear pin (7) links together last injection well downhole flow regulator piston rod (8) and well-flushing cover (10).
3. a kind of water distribution packer according to claim 2, it is characterized in that injection well downhole flow regulator piston rod (8), well-flushing cover (10) and outer adapter sleeve (12) are linked in sequence, well-flushing cover (10) is provided with inlet opening, last injection well downhole flow regulator piston rod (8) and outside well-flushing piston (11) is installed in the annular space between the adapter sleeve (12).
4. a kind of water distribution packer according to claim 3, the bottom cylindrical that it is characterized in that well-flushing piston (11) cooperates with circle in the top of outer adapter sleeve (12), and cylindrical aligns less than the inlet opening of top cylindrical with well-flushing cover (10) in the middle part of it.
5. a kind of water distribution packer according to claim 1, it is characterized in that lower floor's injection well downhole flow regulator comprises injection well downhole flow regulator piston rod (13), following water distribution piston (15), following water distribution spring (16), following water distributing core (17) and adjustable ring (18) down, following water distribution piston (15) is installed in down in the lower lumen of injection well downhole flow regulator piston rod (13), water distribution spring (16) under installing between adjustable ring (18) and the following water distribution piston (15), following injection well downhole flow regulator integral installation are outside in the adapter sleeve (12).
6. a kind of water distribution packer according to claim 5, the maximum outside diameter of injection well downhole flow regulator piston rod (13) is less than the internal diameter of outer adapter sleeve (12) under it is characterized in that.
7. a kind of water distribution packer according to claim 1 is characterized in that upper center tube (3) is provided with top inlet opening, pressure transmission hole and middle part inlet opening, and upper center tube (3) is connected with the inner central tube (19) of packing part.
8. a kind of water distribution packer according to claim 7 is characterized in that the internal diameter of the internal diameter of inner central tube (19) less than upper center tube (3), and its upper surface is an inner conical surface.
9. the fuse that sets that is used for claim 1 a water distribution packer, it is characterized in that originally setting fuse and comprise water distributing core (4) and following water distributing core (17), last water distributing core (4) and following water distributing core (17) screwed connection, it cooperates with the upper surface of water distribution packer inner central tube (19) lower surface of water distributing core (17) connection step down; Last water distributing core (4) is provided with pressure transmission hole (9); Be provided with lower floor's water nozzle (25) on the water distributing core (17) down, its bottom connects plug (27); The external diameter of following water distributing core (17) is less than the internal diameter of inner central tube (19), and pressure transmission hole (9) aligns with the top inlet opening of upper center tube (3), the annular space that water distributing core (17) and inner central tube (19) formed under lower floor's water nozzle (25) was arranged in.
10. the water distributing core that is used for claim 1 a water distribution packer, its this water distributing core of feature comprises water distributing core (4) and following water distributing core (17), last water distributing core (4) and following water distributing core (17) screwed connection, it cooperates with the upper surface of water distribution packer inner central tube (19) lower surface of water distributing core (17) connection step down; Last water distributing core (4) is provided with upper strata water nozzle (6), pressure transmission hole (9) and middle level water nozzle (14); Be provided with lower floor's water nozzle (25) on the water distributing core (17) down, connecting plug (27) in its bottom; The external diameter of following water distributing core (17) is less than the internal diameter of inner central tube (19), upper strata water nozzle (6) aligns with the top inlet opening of upper center tube (3), middle level water nozzle (14) aligns with the bottom inlet opening of upper center tube (3), the annular space that water distributing core (17) and inner central tube (19) formed under lower floor's water nozzle (25) was arranged in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202402475U CN201513154U (en) | 2009-10-23 | 2009-10-23 | Water distribution packer, setting core and water distribution core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202402475U CN201513154U (en) | 2009-10-23 | 2009-10-23 | Water distribution packer, setting core and water distribution core |
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| Publication Number | Publication Date |
|---|---|
| CN201513154U true CN201513154U (en) | 2010-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202402475U Expired - Fee Related CN201513154U (en) | 2009-10-23 | 2009-10-23 | Water distribution packer, setting core and water distribution core |
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|---|---|
| CN (1) | CN201513154U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278078A (en) * | 2011-07-12 | 2011-12-14 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Anti-pull-off protector for coiled tubing and application method thereof |
| CN107420075A (en) * | 2017-06-26 | 2017-12-01 | 中国石油集团渤海钻探工程有限公司 | Upper strata low pressure negative pressure divides device for picking |
| CN113107443A (en) * | 2021-04-29 | 2021-07-13 | 大庆市晟威机械制造有限公司 | Eccentric oilfield water distributor |
-
2009
- 2009-10-23 CN CN2009202402475U patent/CN201513154U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278078A (en) * | 2011-07-12 | 2011-12-14 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Anti-pull-off protector for coiled tubing and application method thereof |
| CN102278078B (en) * | 2011-07-12 | 2013-05-29 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Anti-pull-off protector for coiled tubing and application method thereof |
| CN107420075A (en) * | 2017-06-26 | 2017-12-01 | 中国石油集团渤海钻探工程有限公司 | Upper strata low pressure negative pressure divides device for picking |
| CN107420075B (en) * | 2017-06-26 | 2023-07-14 | 中国石油天然气集团有限公司 | Upper low-pressure negative pressure separate mining device |
| CN113107443A (en) * | 2021-04-29 | 2021-07-13 | 大庆市晟威机械制造有限公司 | Eccentric oilfield water distributor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20141023 |
|
| EXPY | Termination of patent right or utility model |