CN201460856U - Combined gas and sand anchor - Google Patents

Combined gas and sand anchor Download PDF

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Publication number
CN201460856U
CN201460856U CN2009200314925U CN200920031492U CN201460856U CN 201460856 U CN201460856 U CN 201460856U CN 2009200314925 U CN2009200314925 U CN 2009200314925U CN 200920031492 U CN200920031492 U CN 200920031492U CN 201460856 U CN201460856 U CN 201460856U
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CN
China
Prior art keywords
eccentric
gas
liquid
joint
tube
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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
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CN2009200314925U
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Chinese (zh)
Inventor
张波
刘承杰
杜宝坛
王亮
王景森
冷淑玲
杨展荣
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苗在朝
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Priority to CN2009200314925U priority Critical patent/CN201460856U/en
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Publication of CN201460856U publication Critical patent/CN201460856U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a combined gas and sand anchor which is characterized in that the large thread of an upper eccentric joint is connected with the upper part of a gas exhaust tube; the lower part of the gas exhaust tube is connected with the upper part of an outer cylinder; the lower part of the outer cylinder is connected with the upper part of a lower eccentric joint; a packer is installed at the lower part of the lower eccentric joint; the lower part of the packer is connected with a filter tube; the upper part of an eccentric liquid exhaust tube is connected to the upper eccentric joint; the eccentric liquid exhaust tube is communicated with an eccentric hole on the upper eccentric joint; the lower part of an eccentric liquid inlet tube is installed at the upper part of the lower eccentric joint; an inner hole of the eccentric liquid inlet tube is communicated with an eccentric hole on the lower eccentric joint; a gas exhaust tank is arranged on the gas exhaust tube; and sieve meshes are arranged on the filter tube. In the utility model, a gas anchor and a sand anchor are combined; under the action of the filter tube, after the sand is separated from well liquid, the well liquid enters the filter tube; and under the action of the eccentric liquid exhaust tube and the eccentric liquid inlet tube, before the well liquid flows into an oil-well pump, the gravity difference and the slippage effect between the gas and the liquid in the gas-liquid mixture realize the high-efficiency separation between the liquid and the gas, thereby reducing the gas entering the oil-well pump, improving the pump efficiency of the oil-well pump and improving the economic benefit of the oil well.

Description

The combined type gas and sand anchor
One, technical field
The utility model is the downhole tool of oilfield production usefulness, particularly a kind of combined type gas and sand anchor.
Two, background technology
In oil well, the well air content that has is big, and when pumping with oil well pump, the gas-liquid ratio that enters in the oil well pump is big, reduces well liquid discharge capacity, and oil well output is low, and pump efficiency is low, and after air content surpassed certain value, oil well pump also gas lock can take place, and causes oil well not fuel-displaced.In order to reduce the influence of gas to oil well pump work, the oil field is often adopted to install under pump and is utilized the gas anchor of slippage effect and Gravity Separation simply to separate, and prevents that gas from entering in the pump, though this gas anchor has certain effect, but for the big oil well weak effect of air content, can not sand block, sub-sand.The multistage separating gas anchor is adopted at the scene sometimes, though certain liquid gas separating effect is arranged, complex structure, the cost of production height can not sand block, sub-sand, can't resolve the influence of sand to oil pumping.
Three, summary of the invention
The purpose of this utility model provides a kind of combined type gas and sand anchor, is installed under the oil well pump in the pumpingh well, and gas-liquid sand is separated, and reduces the gas that enters oil well pump, improves the pump efficiency of oil well pump, improves the oil well economic benefit.
The purpose of this utility model is achieved in that by last eccentric joint, stack, urceolus, eccentric discharging tube, eccentric feed tube, following eccentric joint, packer, filter pipe is formed, the major thread of last eccentric joint is connected with stack top, exhaust pipe lower part is connected with urceolus top, the urceolus bottom is connected with following eccentric joint top, packer is installed in following eccentric joint bottom, the packer bottom is connected with filter pipe, eccentric discharging tube top is connected on the eccentric joint, eccentric discharging tube communicates with eccentric orfice on the last eccentric joint, eccentric feed tube bottom is installed in down eccentric joint top, eccentric feed tube endoporus communicates with eccentric orfice on the following eccentric joint, air discharge duct is arranged on the stack, the sieve seam is arranged on the filter pipe.
Eccentric discharging tube lower end back cover has sieve aperture on the back cover.
The beneficial effects of the utility model are: the utility model is the combination of gas anchor and sand anchor, under the filter pipe effect, well liquid separates that sand is laggard goes into filter pipe, under eccentric discharging tube, eccentric feed tube effect, flow to well the liquid gravitational difference between gas-liquid mixture and slippage effect before the oil well pump realize efficient separation the between liquid, gas, reduce the gas that enters oil well pump, improve the pump efficiency of oil well pump, improve the oil well economic benefit.
Four, description of drawings
Accompanying drawing is an assembling drawing of the present utility model.
Five, the specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
By last eccentric joint 1, stack 2, urceolus 4, eccentric discharging tube 5, eccentric feed tube 6, following eccentric joint 7, packer 8, filter pipe 9 is formed, the major thread of last eccentric joint 1 is connected with stack 2 tops, stack 2 bottoms are connected with urceolus 4 tops, urceolus 4 bottoms are connected with following eccentric joint 7 tops, packer 8 is installed in following eccentric joint 7 bottoms, packer 8 bottoms are connected with filter pipe 9, eccentric discharging tube 5 tops are connected on the eccentric joint 1, eccentric discharging tube 5 communicates with eccentric orfice on the last eccentric joint 1, eccentric feed tube 6 bottoms are installed in down eccentric joint 7 tops, eccentric feed tube 6 endoporus communicate with eccentric orfice on the following eccentric joint 7, air discharge duct 3 is arranged on the stack 2, sieve seam 10. eccentric discharging tube 5 lower end back covers are arranged on the filter pipe 9, sieve aperture are arranged on the back cover.
Packer 8 packing sleeve pipes, filter pipe 9 can sand block, sand is sieved seam 10 and is filtered, gas-liquid mixture advances filter pipe 9 after eccentric feed tube 6 upwards flows, going out eccentric feed tube 6 flows downward again, enter from eccentric discharging tube 5 and upwards to flow into oil well pump and be drawn out of, the gas-liquid mixture gravitational difference between gas-liquid mixture and slippage effect when change flows to are realized efficient separation the between liquid, gas, the air discharge duct 3 of isolated gas on stack 2 discharged, therefore, gas can not enter in the oil well pump, has avoided the influence of gas to oil well pump.

Claims (2)

1. combined type gas and sand anchor, it is characterized in that: by last eccentric joint (1), stack (2), urceolus (4), eccentric discharging tube (5), eccentric feed tube (6), following eccentric joint (7), packer (8), filter pipe (9) is formed, the major thread of last eccentric joint (1) is connected with stack (2) top, stack (2) bottom is connected with urceolus (4) top, urceolus (4) bottom is connected with following eccentric joint (7) top, packer (8) is installed in following eccentric joint (7) bottom, packer (8) bottom is connected with filter pipe (9), eccentric discharging tube (5) top is connected on the eccentric joint (1), eccentric discharging tube (5) communicates with eccentric orfice on the last eccentric joint (1), eccentric feed tube (6) bottom is installed in down eccentric joint (7) top, eccentric feed tube (6) endoporus communicates with eccentric orfice on the following eccentric joint (7), air discharge duct (3) is arranged on the stack (2), sieve seam (10) is arranged on the filter pipe (9).
2. combined type gas and sand anchor according to claim 1 is characterized in that: eccentric discharging tube (5) lower end back cover has sieve aperture on the back cover.
CN2009200314925U 2009-08-12 2009-08-12 Combined gas and sand anchor Expired - Fee Related CN201460856U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200314925U CN201460856U (en) 2009-08-12 2009-08-12 Combined gas and sand anchor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200314925U CN201460856U (en) 2009-08-12 2009-08-12 Combined gas and sand anchor

Publications (1)

Publication Number Publication Date
CN201460856U true CN201460856U (en) 2010-05-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200314925U Expired - Fee Related CN201460856U (en) 2009-08-12 2009-08-12 Combined gas and sand anchor

Country Status (1)

Country Link
CN (1) CN201460856U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102704907A (en) * 2012-06-16 2012-10-03 李德传 Oil well gas anchor
CN102839951A (en) * 2012-09-11 2012-12-26 中国石油天然气股份有限公司 Production string for rhythm oil layer gravity gas drive and method thereof
CN110485970A (en) * 2019-09-18 2019-11-22 东北石油大学 A kind of exhaust sand control installation for oil well pump

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102704907A (en) * 2012-06-16 2012-10-03 李德传 Oil well gas anchor
CN102839951A (en) * 2012-09-11 2012-12-26 中国石油天然气股份有限公司 Production string for rhythm oil layer gravity gas drive and method thereof
CN102839951B (en) * 2012-09-11 2015-05-06 中国石油天然气股份有限公司 Production string for rhythm oil layer gravity gas drive and method thereof
CN110485970A (en) * 2019-09-18 2019-11-22 东北石油大学 A kind of exhaust sand control installation for oil well pump
CN110485970B (en) * 2019-09-18 2021-10-29 东北石油大学 Exhaust sand prevention device for oil well pump

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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: 20100512

Termination date: 20100812