CN211038600U - Constant flow injection allocation device - Google Patents

Constant flow injection allocation device Download PDF

Info

Publication number
CN211038600U
CN211038600U CN201921825320.5U CN201921825320U CN211038600U CN 211038600 U CN211038600 U CN 211038600U CN 201921825320 U CN201921825320 U CN 201921825320U CN 211038600 U CN211038600 U CN 211038600U
Authority
CN
China
Prior art keywords
piston
hole
sleeve
plug
main
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.)
Active
Application number
CN201921825320.5U
Other languages
Chinese (zh)
Inventor
程延庆
毛元红
王鹏
张有兴
陈安秋
鞠鑫烨
姚斌
王薇
魏向军
王俊涛
尹鹏
彭志强
刘德兴
吕丽红
吕文凯
周贵军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daqing Century Dragon Petroleum Technology Development Co ltd
Original Assignee
Daqing Century Dragon Petroleum Technology Development Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daqing Century Dragon Petroleum Technology Development Co ltd filed Critical Daqing Century Dragon Petroleum Technology Development Co ltd
Priority to CN201921825320.5U priority Critical patent/CN211038600U/en
Application granted granted Critical
Publication of CN211038600U publication Critical patent/CN211038600U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides a invariable injection allocation ware of flow. Relates to the technical field of oilfield flooding. A plug is arranged in an eccentric hole of the main body, a water nozzle sleeve is connected with the lower surface of the plug in a threaded sealing manner, a water distribution hole is formed in the center of the water nozzle sleeve, a piston sleeve is arranged in an inner hole of the plug main body, a piston is arranged in an inner cavity of the piston sleeve, an ejector rod is arranged at the lower part of the piston, and a spring is arranged between the lower part of the piston and the inner cavity of the piston sleeve; the piston sleeve is provided with a through hole which is communicated up and down. The utility model combines the pore channel communicated with the central hole of the body with the piston, the spring and the ejector rod to form a component for balancing flow, when the liquid inlet pressure changes, the water distribution gap changes along with the change of the liquid inlet pressure through the interaction of the piston and the spring, so that the flow passing through the water distribution hole can not change along with the pressure change, and the constant flow of the water distribution is kept; set up the auxiliary passage hole simultaneously, the problem of mutual interference that the appearance blockked up the injection allocation ware centre bore and brought is transferred to the side when having solved the side debugging, and the water distribution part adopts high-carbon high-speed steel, has improved life.

Description

Constant flow injection allocation device
The technical field is as follows:
the utility model belongs to the technical field of the oil field water injection technique and specifically relates to a invariable injection allocation ware of flow.
Background art:
in order to further improve the recovery ratio of crude oil, a water injection technology in secondary oil recovery becomes an important means for oil field development, so far, most of domestic oil fields enter a high-water-content development period, and water injection work is more and more emphasized for increasing the water injection volume and improving the recovery ratio of crude oil. The blanking plug is the important part of layering water injection technique, and the blanking plug mainly is the general type of interchangeable water injection well choke at present, selects suitable water injection well choke according to the water injection volume requirement, throws in the pit after the installation and sits in eccentric water injection mandrel lateral hole, and under ideal state, the water injection volume can reach the requirement, when operating condition changes, for example: the water injection pressure of the water injection station reaching the water injection well through the pipe network system changes, the pressure of the complicated and changeable underground oil layer water injection layer changes, and at the moment, the flow is not constant any more. The water nozzle needs to be replaced by repeatedly throwing and fishing to achieve the expected water injection amount, the cost is increased, and the oil production rate is reduced, so that the constant-flow water injection structure is very necessary.
The utility model has the following contents:
in order to solve the problem, the utility model provides a invariable injection allocation ware of flow.
The technical scheme of the utility model is that: a constant-flow injection allocation device comprises an upper connector, an upper connecting sleeve, a centralizing body, a main body, a lower connecting sleeve, a support, a guide body, a lower connector and a water outlet, wherein a plug is arranged in an eccentric hole of the main body and comprises a plug main body, a fishing head, a cam and the like;
a piston sleeve is arranged in an inner hole at the lower side of a water outlet of a plug of the plug main body, an ejector rod is arranged at the upper part of the piston sleeve and props against the upper side of the inner hole of the plug main body, two sealing rings are arranged between the piston sleeve and the plug main body, an inner concave ring is arranged on the piston sleeve, an inner edge hole is arranged in the inner concave ring, an outer concave ring is arranged on the excircle of the plug main body at the position of the inner concave ring, a middle edge hole is arranged in the outer concave ring, and an outer edge hole communicated with the eccentric hole is arranged on the main body center hole at the position of the outer concave ring;
the piston sleeve is internally provided with a piston in an inner cavity, a sealing ring is arranged between the excircle of the piston and the inner hole of the piston sleeve, the lower part of the piston is provided with a mandril, the head part of the mandril at the lower part of the piston is conical, the mandril at the lower part of the piston extends out of the piston sleeve to abut against a chamfer of the water distribution hole, and the conical angle of the mandril at the lower part of the piston is the same;
a spring is arranged between the lower part of the piston and the inner cavity of the piston sleeve;
the piston sleeve is provided with a flow passing hole which is communicated up and down and is communicated with the water outlet of the blanking plug.
The piston and the water nozzle sleeve are made of high-carbon high-speed steel.
The main body is provided with an auxiliary channel hole beside the eccentric hole of the main body, and the auxiliary channel hole is a through hole.
The utility model discloses following beneficial effect has: the utility model combines the pore channel communicated with the central hole of the body with the piston, the spring and the ejector rod to form a component for balancing flow, when the liquid inlet pressure changes, the clearance between the ejector rod and the chamfer changes along with the change of the piston and the spring through the interaction of the piston and the spring, so that the flow passing through the water distribution hole can not change along with the change of the pressure, and the constant flow of the water distribution is kept; set up the auxiliary passage hole simultaneously, the problem of mutual interference that the appearance blockked up the injection allocation ware centre bore and brought is transferred to the side when having solved the side debugging, and the water distribution part adopts high-carbon high-speed steel, has improved life.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is an enlarged view of a portion a of fig. 1.
In the figure, 1-an upper connecting sleeve, 2-a blanking plug, 3-an upper connector, 4-a righting body, 5-a main body, 6-an auxiliary channel hole, 7-a support, 8-a guide body, 9-a lower connector, 10-a blanking plug main body, 11-a water outlet, 12-a blanking plug water outlet, 13-a piston sleeve, 14-an outer edge hole, 15-a middle edge hole, 16-an inner edge hole, 17-a water nozzle sleeve, 18-a water distribution hole, 19-a chamfer, 20-a piston, 21-a water through hole, 22-a spring, 23-an inner concave ring, 24-an outer concave ring, 25-a lower connecting sleeve and 26-a mandril.
The specific implementation mode is as follows:
the present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 and fig. 2, the constant-flow injection allocation device comprises an upper connector 3, an upper connecting sleeve 1, a centralizing body 4, a main body 5, a lower connecting sleeve 25, a support 7, a guide body 8, a lower connector 9 and a water outlet 11, wherein a blanking plug 2 is arranged in an eccentric hole of the main body 5, the blanking plug 2 comprises a blanking plug main body 10, a fishing head, a cam and the like, a water nozzle sleeve 17 is connected to the lower surface of the blanking plug main body 10 in a threaded sealing manner, a water distribution hole 18 is formed in the center of the water nozzle sleeve 17, and a chamfer 19 is formed at the top of the water distribution hole;
a piston sleeve 13 is arranged in an inner hole at the lower side of a water outlet 12 of a plug main body 10, an ejector rod arranged at the upper part of the piston sleeve 13 props against the upper side of the inner hole of the plug main body 10 to prevent the piston sleeve 13 from moving upwards, two sealing rings are arranged between the piston sleeve 13 and the plug main body 10, an inner concave ring 23 is arranged on the piston sleeve 13 between the two sealing rings, an inner edge hole 16 is arranged in the inner concave ring 23, an outer concave ring 24 is arranged on the excircle of the plug main body 10 at the position of the inner concave ring 23, a middle edge hole 15 is arranged in the outer concave ring 24, an outer edge hole 14 communicated with an eccentric hole is arranged on the central hole of a main body 5 at the position of the outer concave ring 24, and the central hole of the main body 5 is communicated with the inner cavity of the piston sleeve 13 and is not communicated with the interior of the plug 2 through the arrangement of the outer edge hole 14, the inner concave ring 23;
the piston sleeve 13 is internally provided with a piston 20 in an inner cavity, a sealing ring is arranged between the excircle of the piston 20 and the inner hole of the piston sleeve 13, the lower part of the piston 20 is provided with a mandril 26, the head part of the mandril 26 at the lower part of the piston 20 is conical, the mandril 26 at the lower part of the piston 20 extends out of the piston sleeve 13 to abut against a chamfer 19 of the water distribution hole 18, and the conical angle of the mandril 26 at the lower part of the piston 20 and the angle of the chamfer 19 are the same;
the piston 20, there is the spring 22 between the cavity of the piston bush 13 and the inferior part of the piston 20, when the liquid of the same pressure enters in the cavity of the piston bush 13 and the water distribution hole 18, the thrust of the piston 20 is greater than the thrust that the water distribution hole 18 pushes the piston knockout pin 26, balance this pressure difference through the spring 22, in order to keep the liquid inlet flowrate of the water distribution hole 18 under certain pressure, when the liquid inlet pressure rises, the piston 20 oppresses the spring 22, the interval between knockout pin 26 and chamfer 19 becomes small, the liquid flowrate that the water distribution hole 18 enters is invariable, when the liquid inlet pressure becomes small, the thrust of the piston 20 diminishes, the spring 22 extends, the interval between knockout pin 26 and chamfer 19 becomes large, the flowrate keeps invariable;
the piston sleeve 13 is provided with a through flow hole 21 which is communicated up and down and is communicated with the water outlet 12 of the blanking plug, and the through flow hole is used as a communicating pore channel of the water distribution hole 17 and the water outlet 12 of the blanking plug.
Because the top of the piston 20 is frequently contacted and impacted with the chamfer 18 of the water distribution hole 17, in order to prevent impact deformation, the materials of the piston 20 and the water nozzle sleeve 17 adopt high-carbon high-speed steel.
The main body 5 is provided with an auxiliary channel hole 6 beside an eccentric hole of the main body 5, the auxiliary channel hole 6 is a through hole, when side adjustment is carried out, a side adjustment instrument blocks a central hole of the main body 5, liquid enters a lower injection layer through the auxiliary channel hole, and the problem of mutual interference of side adjustment is solved.
The utility model combines the pore channel communicated with the central hole of the body with the piston, the spring and the ejector rod to form a component for balancing flow, when the liquid inlet pressure changes, the clearance between the ejector rod and the chamfer changes along with the change of the piston and the spring through the interaction of the piston and the spring, so that the flow passing through the water distribution hole can not change along with the change of the pressure, and the constant flow of the water distribution is kept; set up the auxiliary passage hole simultaneously, the problem of mutual interference that the appearance blockked up the injection allocation ware centre bore and brought is transferred to the side when having solved the side debugging, and the water distribution part adopts high-carbon high-speed steel, has improved life.

Claims (3)

1. The utility model provides a invariable injection allocation ware of flow, includes top connection (3), goes up adapter sleeve (1), rights body (4), main part (5), lower adapter sleeve (25), support (7), guide body (8), lower clutch (9) and delivery port (11), its characterized in that: a plug (2) is arranged in an eccentric hole of the main body (5), the plug (2) comprises a plug main body (10), a fishing head, a cam and the like, a water nozzle sleeve (17) is connected to the lower surface of the plug main body (10) in a threaded sealing manner, a water distribution hole (18) is formed in the center of the water nozzle sleeve (17), and a chamfer (19) is formed in the top of the water distribution hole (18);
a piston sleeve (13) is arranged in an inner hole at the lower side of a water outlet (12) of the blanking plug body (10), an ejector rod is arranged at the upper part of the piston sleeve (13) and props against the upper side of the inner hole of the blanking plug body (10), two sealing rings are arranged between the piston sleeve (13) and the blanking plug body (10), an inner concave ring (23) is arranged on the piston sleeve (13) between the two sealing rings, an inner edge hole (16) is arranged in the inner concave ring (23), an outer concave ring (24) is arranged on the excircle of the blanking plug body (10) at the position of the inner concave ring (23), a middle edge hole (15) is arranged in the outer concave ring (24), and an outer edge hole (14) communicated with the eccentric hole is arranged on the central hole of the body (5) at the position of the outer concave ring (24);
the piston sleeve (13) is internally provided with a piston (20) in an inner cavity, a sealing ring is arranged between the excircle of the piston (20) and an inner hole of the piston sleeve (13), an ejector rod (26) is arranged at the lower part of the piston (20), the head of the ejector rod (26) at the lower part of the piston (20) is conical, the ejector rod (26) at the lower part of the piston (20) extends out of the piston sleeve (13) to abut against a chamfer (19) of the water distribution hole (18), and the conical angle of the ejector rod (26) at the lower part of the piston (20) is the same as the;
a spring (22) is arranged between the lower part of the piston (20) and the inner cavity of the piston sleeve (13) of the piston (20);
the piston sleeve (13) is provided with a flow passing hole (21) which is communicated up and down and is communicated with the water outlet (12) of the blanking plug.
2. A constant flow dispenser according to claim 1, wherein: the piston (20) and the water nozzle sleeve (17) are made of high-carbon high-speed steel.
3. A constant flow dispenser according to claim 1, wherein: the main body (5) is provided with an auxiliary channel hole (6) beside the eccentric hole of the main body (5), and the auxiliary channel hole (6) is a through hole.
CN201921825320.5U 2019-10-28 2019-10-28 Constant flow injection allocation device Active CN211038600U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921825320.5U CN211038600U (en) 2019-10-28 2019-10-28 Constant flow injection allocation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921825320.5U CN211038600U (en) 2019-10-28 2019-10-28 Constant flow injection allocation device

Publications (1)

Publication Number Publication Date
CN211038600U true CN211038600U (en) 2020-07-17

Family

ID=71531348

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921825320.5U Active CN211038600U (en) 2019-10-28 2019-10-28 Constant flow injection allocation device

Country Status (1)

Country Link
CN (1) CN211038600U (en)

Similar Documents

Publication Publication Date Title
CA2599204A1 (en) Multiple port cross-over design for frac-pack erosion mitigation
CN105156048B (en) A kind of concentric double pipe sand-flushing device
CN211038600U (en) Constant flow injection allocation device
CN205298704U (en) Hierarchical water conservancy diversion pressure -relief valve
CN203515413U (en) Mechanical and hydraulic dual-action ground anchor assembly
CN203743548U (en) Special pressure reducing and stabilizing valve for fire protection
CN202914018U (en) Pressure test anti-spraying multifunctional plug
CN204899817U (en) But well -flushing is prevented returning and is told control valve device
CN204878900U (en) Improved generation relief pressure valve with filter equipment
CN203718268U (en) Throttling device
CN201071701Y (en) Hydraulic blocking device of oil pipe
CN202381063U (en) Anti-erosion throttle sand blower
CN204878986U (en) Improved generation relief pressure valve
CN202047782U (en) Swabbing steel wire rope spray-prevention device
CN106641281A (en) Valve
CN107165606A (en) Upper strata high pressure negative pressure point device for picking
CN201043471Y (en) Pilot-operated check valve for hydraulic support of suspension upper beam
CN203476671U (en) Anti-blowout oil pump
CN203626792U (en) Secondary ball injection compensation differential pressure sliding sleeve
CN204283376U (en) A kind of oil well separate zone production mandrel
CN203796974U (en) Condensate feed water regulating valve
CN202834187U (en) Self-switching pressure stabilizing three-way flow divider
CN211397488U (en) Coal slime blocking device is prevented to gas drilling rod for coal mine's gas orifice of preventing
CN112211604A (en) Be used for big pressure differential self-adaptation injection mandrel in oil well
CN204284524U (en) Hydraulic pressure valve rubber compensation type one-way valve

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant