CN201599016U - Water distribution core with adjustable flow - Google Patents

Water distribution core with adjustable flow Download PDF

Info

Publication number
CN201599016U
CN201599016U CN200920319359XU CN200920319359U CN201599016U CN 201599016 U CN201599016 U CN 201599016U CN 200920319359X U CN200920319359X U CN 200920319359XU CN 200920319359 U CN200920319359 U CN 200920319359U CN 201599016 U CN201599016 U CN 201599016U
Authority
CN
China
Prior art keywords
core
water
core pipe
pipe
water distribution
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.)
Expired - Fee Related
Application number
CN200920319359XU
Other languages
Chinese (zh)
Inventor
陈勇
田赁
庞云伟
谢雪峰
林涛
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.)
Guizhou Aerospace Kaishan Petroleum Instrument Co Ltd
Original Assignee
Guizhou Aerospace Kaishan Petroleum Instrument 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 Guizhou Aerospace Kaishan Petroleum Instrument Co Ltd filed Critical Guizhou Aerospace Kaishan Petroleum Instrument Co Ltd
Priority to CN200920319359XU priority Critical patent/CN201599016U/en
Application granted granted Critical
Publication of CN201599016U publication Critical patent/CN201599016U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model discloses a water distribution core with adjustable flow, which comprises an upper core pipe (1) and a lower core pipe (2) which are connected by threads. 2-4 water nozzles (3) are evenly distributed on the pipe wall of the lower portion of the upper core pipe (1) along the periphery; an adjusting valve (4) is arranged inside the upper core pipe (1) at the positions of the water nozzles (3); and the adjusting valve (4) is connected with the upper core pipe (1) through threads. The water distribution core can be adjusted through an underground tool when above the ground so that a water nozzle on one layer of the water distribution core can be replaced without taking out the replaced layer and the above layers which cause extremely large repeated working efficiency. Simultaneously, the water distribution cores need not to be fished out, change of water distribution quantity of a fishing-out layer can not be influenced, and steadiness of a flow field needs no recovery time, thereby having high working efficiency. The water distribution core greatly improves water injecting process of a hollow well, effectively improves working efficiency, and lowers labor intensity of workers.

Description

A kind of water distributing core of adjustable throttle amount
Technical field
The utility model relates to the water distributing core of using in the hollow water injection well in a kind of oil field, particularly relates to a kind of water distributing core of adjustable throttle amount.
Background technology
In oilfield development process, need water be injected oil reservoir by water injection well, to keep or the recovery formation pressure.The degree of depth of water injection well generally all hundreds of rice in addition on km, be provided with water distributing core at the different depth of water injection well, the water nozzle sectional area on the existing water distributing core is all fixed, and can not regulate.In addition, the maximum outside diameter of general lower floor water distributing core is greater than the internal diameter of upper strata water distributing core.Therefore,, the water distributing core of changing layer and above each layer all must be taken out, all drop into again again behind the replacing water nozzle as changing the water nozzle of certain layer of water distributing core.Repeated workload is big, inefficiency.Simultaneously, the water distribution quantity of each layer has bigger variation after the water distributing core owing to pull out, and the flow field will return to stable state needs the longer time, influences the raising of operating efficiency.
The utility model content
The purpose of this utility model is, a kind of water distributing core of adjustable throttle amount is provided.It can utilize downhole tool to regulate the water nozzle sectional area by control valve, need not change water distributing core, and repeated workload is little.High efficiency.
The technical solution of the utility model: a kind of water distributing core of adjustable throttle amount, comprise the last core pipe and the following core pipe that are threaded, be uniformly distributed with 2~4 water nozzles along the circumference on the tube wall of last core pipe bottom, be provided with control valve in the core pipe in the water nozzle place, control valve is connected with last core gas thread.
In the water distributing core of above-mentioned adjustable throttle amount, be uniformly distributed with 2 water nozzles along the circumference on the tube wall of described upward core pipe bottom,
In the water distributing core of aforementioned adjustable throttle amount, described water nozzle is the isosceles triangle of wedge angle rounding.
In the water distributing core of aforementioned adjustable throttle amount, described control valve is the pipe that is provided with gas thread, is uniformly distributed with 2 or 4 driver slots radially on the tube wall along the circumference.
In the water distributing core of aforementioned adjustable throttle amount, be uniformly distributed with 4 driver slots radially on the described tube wall along the circumference.
In the water distributing core of aforementioned adjustable throttle amount, described top of going up the core pipe is uniformly distributed with 2~4 locating slots along the circumference.
In the water distributing core of aforementioned adjustable throttle amount, described top of going up the core pipe is uniformly distributed with 2 locating slots along the circumference.
Compared with prior art, existing water distributing core just is provided with water nozzle on fuse, and the cross section of water nozzle is fixed, therefore the flow of unadjustable water distribution.If regulate the water distributing core of the water nozzle that can only change different cross section.The utility model is that existing water distributing core is divided into core pipe and following core pipe, on last core pipe, water nozzle is set, in last core pipe, be provided with control valve, control valve is connected with last core gas thread, control valve is provided with the driver slot of available instrument rotation, by rotating regulation valve control valve is moved at last core inner axial tube, when moving on the control valve, the part that shelters from water nozzle with control valve becomes big, and flow increases; When control valve moved down, the part that shelters from water nozzle with control valve diminished, and flow reduces.Because the utility model just can be regulated water distributing core by downhole tool aboveground, so in the time of just need not needing to change the water nozzle of certain layer of water distributing core, the water distributing core of changing layer and above each layer all must be taken out, drop into very large repeated workload.Simultaneously, owing to need not pull water distributing core out, so can not influence the variation of pulling layer water distribution quantity out, the stable of flow field do not need recovery time, high efficiency.Greatly improve hollow well water injection technology, effectively increase work efficiency, reduce labor strength.
Description of drawings
Fig. 1 is a perspective view of the present utility model.
The last core pipe of being labeled as in the accompanying drawing: 1-, core pipe under the 2-, 3-water nozzle, 4-control valve, 5-driver slot, 6-locating slot.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment.A kind of water distributing core of adjustable throttle amount, as shown in Figure 1.Comprise the last core pipe 1 and the following core pipe 2 that are threaded, the top of last core pipe 1 is uniformly distributed with 2~4 locating slots 6 along the circumference, and present embodiment is provided with 4 locating slots.Be uniformly distributed with 2~4 water nozzles 3 along the circumference on the tube wall of last core pipe 1 bottom, present embodiment is provided with 2 water nozzles 3, and water nozzle 3 is the isosceles triangle of wedge angle rounding.Be provided with control valve 4 in the core pipe 1 in water nozzle 3 places, control valve 4 is uniformly distributed with 3 or 4 driver slots 5 radially along the circumference for being provided with the pipe of gas thread on the tube wall, and present embodiment is provided with 4 control valves 4, and control valve 4 is threaded with last core pipe 1.

Claims (7)

1. the water distributing core of an adjustable throttle amount, it is characterized in that: comprise the last core pipe (1) and the following core pipe (2) that are threaded, be uniformly distributed with 2~4 water nozzles (3) along the circumference on the tube wall of last core pipe (1) bottom, be provided with control valve (4) in the last core pipe (1) that water nozzle (3) is located, control valve (4) is threaded with last core pipe (1).
2. according to the water distributing core of the described adjustable throttle amount of claim 1, it is characterized in that: be uniformly distributed with 2 water nozzles (3) along the circumference on the tube wall of described upward core pipe (1) bottom.
3. according to the water distributing core of the described adjustable throttle amount of claim 2, it is characterized in that: described water nozzle (3) is the isosceles triangle of wedge angle rounding.
4. according to the water distributing core of the described adjustable throttle amount of claim 3, it is characterized in that: described control valve (4) is uniformly distributed with 2 or 4 driver slots (5) radially along the circumference for being provided with the pipe of gas thread on the tube wall.
5. according to the water distributing core of the described adjustable throttle amount of claim 4, it is characterized in that: be uniformly distributed with 4 driver slots (5) radially on the described tube wall along the circumference.
6. according to the water distributing core of the described adjustable throttle amount of claim 5, it is characterized in that: described top of going up core pipe (1) is uniformly distributed with 2~4 locating slots (6) along the circumference.
7. according to the water distributing core of the described adjustable throttle amount of claim 6, it is characterized in that: described top of going up core pipe (1) is uniformly distributed with 2 locating slots (6) along the circumference.
CN200920319359XU 2009-12-31 2009-12-31 Water distribution core with adjustable flow Expired - Fee Related CN201599016U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920319359XU CN201599016U (en) 2009-12-31 2009-12-31 Water distribution core with adjustable flow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920319359XU CN201599016U (en) 2009-12-31 2009-12-31 Water distribution core with adjustable flow

Publications (1)

Publication Number Publication Date
CN201599016U true CN201599016U (en) 2010-10-06

Family

ID=42810070

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200920319359XU Expired - Fee Related CN201599016U (en) 2009-12-31 2009-12-31 Water distribution core with adjustable flow

Country Status (1)

Country Link
CN (1) CN201599016U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014117463A1 (en) * 2013-01-31 2014-08-07 中国石油天然气股份有限公司 Bridge-type concentric continuously adjustable water distributor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014117463A1 (en) * 2013-01-31 2014-08-07 中国石油天然气股份有限公司 Bridge-type concentric continuously adjustable water distributor

Similar Documents

Publication Publication Date Title
CN204041022U (en) A kind of twofold whirl water pumping gas production downhole tool
CN102704904B (en) Multi-stage fracturing sliding sleeve device and using method thereof
CN102606118A (en) Subdivision water injection, ball-off and profile control integrated tubular column for water injection well of oilfield and process of tubular column
CN201599016U (en) Water distribution core with adjustable flow
CN103883295B (en) A kind of parallel inflow controls box and parallel inflow control device
CN103510906B (en) A kind of adjustable variable-pressure difference constant current plug
CN201953360U (en) Pressure-regulating water-controlling sand control pipe
CN201090194Y (en) Adjustable flux water distributor
CN201574739U (en) Device for regulating layered waterflooding quantity of hollow well
CN202467796U (en) Sub-divisional water injection ball-launching profile control integrated pipe post for oil field water injection well
CN204457708U (en) Pitching choosing note process pipe string
CN203531875U (en) Ball seat and ball throwing sliding sleeve type segmented fracturing device
CN105201817A (en) Split type plunger without base and liquid drainage gas recovery process
CN101293322B (en) Feed and extraction tool of guiding device
CN101343992B (en) Horizontal well drillable quartz sand filter tube sand-prevention assorted column jacket
CN205955713U (en) Water injection well ground water injection mandrel
CN202000978U (en) Parallel channel type flow controller for water cone control
CN202249994U (en) Casting-and-fishing-free separated layer water injection process pipe string
CN205638221U (en) Injection process falls turns round pressure device
CN201982018U (en) High-pressure jet grouting segmented reaming bit
CN204877379U (en) Automatically regulated air cock in pit
CN104565631A (en) Adjustable water-saving joint
CN104775798B (en) Full well quantitative injection device
CN102155203A (en) Water cone controlled parallel canal type flow controller
CN205445570U (en) Water jet fracturing tubular column device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101006

Termination date: 20121231