CN104929560A - Sand-prevention blanking plug - Google Patents

Sand-prevention blanking plug Download PDF

Info

Publication number
CN104929560A
CN104929560A CN201510328804.9A CN201510328804A CN104929560A CN 104929560 A CN104929560 A CN 104929560A CN 201510328804 A CN201510328804 A CN 201510328804A CN 104929560 A CN104929560 A CN 104929560A
Authority
CN
China
Prior art keywords
plug
sand
blanking plug
shear pin
plugging device
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.)
Pending
Application number
CN201510328804.9A
Other languages
Chinese (zh)
Inventor
魏于钧
张大伟
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.)
BAOJI SAFE PETROLEUM MACHINERY Co Ltd
Original Assignee
BAOJI SAFE PETROLEUM MACHINERY 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 BAOJI SAFE PETROLEUM MACHINERY Co Ltd filed Critical BAOJI SAFE PETROLEUM MACHINERY Co Ltd
Priority to CN201510328804.9A priority Critical patent/CN104929560A/en
Publication of CN104929560A publication Critical patent/CN104929560A/en
Pending legal-status Critical Current

Links

Landscapes

  • Pipe Accessories (AREA)

Abstract

A sand-prevention blanking plug comprises a body (1), wherein a narrow gap (7) is formed in the middle of the body (1), the lower end of the body (1) is in threaded connection with a guide head (3), the upper end of the body (1) is provided with an inner threaded connector (6), a plug (2) is sealed and assembled in the body (1) and is located above the narrow gap (7), and the plug (2) is fixed to the body (1) through a shear pin (4) arranged radially. The sand-prevention blanking plug can seal bottom hole pressure when a speed tubular column descends and can effectively relieve yield reduction caused by sand blockage during normal gas production.

Description

Sand control plugging device
Technical field
The invention belongs to speed tubing string production gas technology field, be specifically related to a kind of sand control plugging device.
Background technology
Due to reasons such as gas reservoir pressure drop, the immersion of shaft bottom water, gas flow rate reduction, shaft bottom hydrops and Liquid output increases, in exploitation gas reservoir process, most gas well all constantly can decline along with the output of carrying out of producing, so that finally stops production.At present, domestic main employing speed tubing string drainage gas recovery improves shaft bottom situation, promotes gas well steadily to produce and recovers blowing production.The corollary equipment of conventional speed tubing string drainage gas recovery comprises: operation window, continuous-tube well mouth hanger, continuous-tube blanking plug, slips fixator etc.But easily there is sand plug in the speed tubing string continuous-tube duration of work of routine, causes gas production obviously to decline.
Summary of the invention
The invention solves the deficiencies in the prior art, provide a kind of sand control plugging device, under achieving speed tubing string, fashionable energy plugged well bottom pressure, effectively can alleviate the production declining that sand plug causes during normal gas production.
The technical solution adopted in the present invention is: a kind of sand control plugging device, comprise body, the middle part of described body has finedraw, the lower end of described body has been threaded guide head, upper end has a female screw connection, is equipped with plug by sealing in described body, and makes plug be positioned at the top of finedraw, and plug is fixed by the shear pin of radial setting and body.
Described plug is sealed by O RunddichtringO and inner body wall, and O RunddichtringO is positioned at the top of shear pin.Described female screw connection is trapezoidal internal thread connector.
The advantage that the present invention compared with prior art has and effect:
1, under achieving speed tubing string, fashionable energy plugged well bottom pressure, facilitates continuous-tube to be with tool string G.I.H.
2, sand grains in filter well during normal gas production, effectively can alleviate the production declining that sand plug causes.
3, guide head can reduce the resistance that instrument seals in well greatly.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 and detailed description of the invention, the present invention is described in detail.
A kind of sand control plugging device, comprise body 1, the middle part of described body 1 has finedraw 7, the lower end of described body 1 has been threaded guide head 3, upper end has a female screw connection 6, be equipped with plug 2 by sealing in described body 1, and make plug 2 be positioned at the top of finedraw 7, and plug 2 is fixed with body 1 by the radial shear pin 4 arranged.
Described plug 2 is by O RunddichtringO 5 and body 1 inner wall sealing, and O RunddichtringO 5 is positioned at the top of shear pin 4.Described female screw connection 6 is trapezoidal internal thread connector.
During use, connected with the coiled tubing pilot operated valve device of speed tubing string lower end by the female screw connection 6 of upper end of the present invention, can shutoff speed tubing string well internal gas pressure when going into the well, be convenient to continuous-tube and be with tool string G.I.H.During gas production operation, pump into nitrogen or fluid by well head in continuous-tube, pressurization makes nitrogen or fluid enter in body 1; shear pin 4 is cut off; tubing string can resume production, and the grains of sand produced in gas recovery can be filtered outside body 1, and not shutoff gas production passage.
Above-described embodiment, just preferred embodiment of the present invention, is not used for limiting practical range of the present invention, therefore all equivalent variations done with content described in the claims in the present invention, all should be included within the claims in the present invention scope.

Claims (3)

1. sand control plugging device, comprise body (1), the middle part of described body (1) has finedraw (7), it is characterized in that: the lower end of described body (1) has been threaded guide head (3), upper end has a female screw connection (6), plug (2) is equipped with by sealing in described body (1), and make plug (2) be positioned at the top of finedraw (7), and plug (2) is fixed with body (1) by the radial shear pin (4) arranged.
2. sand control plugging device according to claim 1, it is characterized in that: described plug (2) is by O RunddichtringO (5) and body (1) inner wall sealing, and O RunddichtringO (5) is positioned at the top of shear pin (4).
3. sand control plugging device according to claim 1 and 2, is characterized in that: described female screw connection (6) is trapezoidal internal thread connector.
CN201510328804.9A 2015-06-15 2015-06-15 Sand-prevention blanking plug Pending CN104929560A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510328804.9A CN104929560A (en) 2015-06-15 2015-06-15 Sand-prevention blanking plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510328804.9A CN104929560A (en) 2015-06-15 2015-06-15 Sand-prevention blanking plug

Publications (1)

Publication Number Publication Date
CN104929560A true CN104929560A (en) 2015-09-23

Family

ID=54116953

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510328804.9A Pending CN104929560A (en) 2015-06-15 2015-06-15 Sand-prevention blanking plug

Country Status (1)

Country Link
CN (1) CN104929560A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106677735A (en) * 2016-11-23 2017-05-17 中国石油天然气股份有限公司 Blocking device for drainage gas recovery of horizontal well velocity string
CN109267972A (en) * 2018-10-30 2019-01-25 中国石油天然气股份有限公司 A kind of speed column two-stage plugging device and application method
CN109296336A (en) * 2018-09-20 2019-02-01 中国石油天然气股份有限公司 A kind of speed column sleeve type blocking device and method
CN109403908A (en) * 2018-11-06 2019-03-01 中国石油天然气股份有限公司 A kind of speed column sand control formula calker and application method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2290690Y (en) * 1997-04-01 1998-09-09 牡丹江市石油工具配套厂 Oil well dirt-proof choke appts.
US6062307A (en) * 1997-10-24 2000-05-16 Halliburton Energy Services, Inc. Screen assemblies and methods of securing screens
CN201588620U (en) * 2010-02-09 2010-09-22 汤志忠 Eccentric water distributor without throwing and dragging
CN103206187A (en) * 2013-04-22 2013-07-17 中国海洋石油总公司 Blanking plug for sand prevention
CN203285375U (en) * 2013-05-27 2013-11-13 中国石油化工股份有限公司 Blocking gauge cutter
CN203603835U (en) * 2013-12-09 2014-05-21 中国石油集团川庆钻探工程有限公司井下作业公司 Underground dart-type blocking tool used for coiled tubing
CN204984338U (en) * 2015-06-15 2016-01-20 宝鸡市赛孚石油机械有限公司 Sand control blanking plug

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2290690Y (en) * 1997-04-01 1998-09-09 牡丹江市石油工具配套厂 Oil well dirt-proof choke appts.
US6062307A (en) * 1997-10-24 2000-05-16 Halliburton Energy Services, Inc. Screen assemblies and methods of securing screens
CN201588620U (en) * 2010-02-09 2010-09-22 汤志忠 Eccentric water distributor without throwing and dragging
CN103206187A (en) * 2013-04-22 2013-07-17 中国海洋石油总公司 Blanking plug for sand prevention
CN203285375U (en) * 2013-05-27 2013-11-13 中国石油化工股份有限公司 Blocking gauge cutter
CN203603835U (en) * 2013-12-09 2014-05-21 中国石油集团川庆钻探工程有限公司井下作业公司 Underground dart-type blocking tool used for coiled tubing
CN204984338U (en) * 2015-06-15 2016-01-20 宝鸡市赛孚石油机械有限公司 Sand control blanking plug

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
周长江: "《油田生产安全技术》", 30 May 2003 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106677735A (en) * 2016-11-23 2017-05-17 中国石油天然气股份有限公司 Blocking device for drainage gas recovery of horizontal well velocity string
CN109296336A (en) * 2018-09-20 2019-02-01 中国石油天然气股份有限公司 A kind of speed column sleeve type blocking device and method
CN109296336B (en) * 2018-09-20 2023-11-28 中国石油天然气股份有限公司 Sliding sleeve type blocking device and method for speed pipe column
CN109267972A (en) * 2018-10-30 2019-01-25 中国石油天然气股份有限公司 A kind of speed column two-stage plugging device and application method
CN109403908A (en) * 2018-11-06 2019-03-01 中国石油天然气股份有限公司 A kind of speed column sand control formula calker and application method

Similar Documents

Publication Publication Date Title
CN204312036U (en) A kind of differential pressure underground throttle device valve
CN104929560A (en) Sand-prevention blanking plug
CN102817594B (en) Horizontal well water pumping gas production method and device
CN203394480U (en) Layered acidification device for oil-water well
CN203384002U (en) Pressure maintaining device for reciprocating type mud pump
CN204984338U (en) Sand control blanking plug
CN203394450U (en) High-pressure throwing-in and pulling eccentric gas lift working barrel
CN201024988Y (en) An overflow leakage flowing ball base
CN203879719U (en) Integrated gas injecting and oil extracting pump
CN205189800U (en) Fluid pressure type oil pipe internal cutter
CN203547574U (en) Safety joint of sliding sleeve
CN104481461B (en) Small pumping oil operating system
CN203161152U (en) Sucker rod self-sealing preventer
CN208718592U (en) Underground helicoid hydraulic motor antiseize device
CN204299542U (en) A kind of hydrostatic closedown sliding sleeve switch
CN202832460U (en) Acidifying sand blower of horizontal well
CN204960843U (en) Two effect recycle valves
CN204436322U (en) Packer elasticity packing element
CN204877379U (en) Automatically regulated air cock in pit
CN205117316U (en) Palirrhea injection allocation ware is prevented to chemical flooding
CN204283336U (en) A kind of laterally opened ball-and-seat
CN204344085U (en) Little pump oil pumping operating system
CN203403850U (en) Underground sediment filtering device for hydraulic packer
CN203856461U (en) Rotating ball type oil nozzle sleeve device with quickly-replaceable oil nozzle
CN203515499U (en) Underground gas collecting device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20150923

RJ01 Rejection of invention patent application after publication