CN203570251U - Heavy oil well wellhead leakproof device - Google Patents

Heavy oil well wellhead leakproof device Download PDF

Info

Publication number
CN203570251U
CN203570251U CN201320749820.1U CN201320749820U CN203570251U CN 203570251 U CN203570251 U CN 203570251U CN 201320749820 U CN201320749820 U CN 201320749820U CN 203570251 U CN203570251 U CN 203570251U
Authority
CN
China
Prior art keywords
oil well
heavy oil
shell
packing
well wellhead
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
CN201320749820.1U
Other languages
Chinese (zh)
Inventor
赵田
巩书巨
韩晓玉
唐渤海
陈秋玲
苗迎春
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.)
Sinopec Shengli Oilfield Co Gudao Oil Extraction Plant
Original Assignee
Sinopec Shengli Oilfield Co Gudao Oil Extraction Plant
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 Sinopec Shengli Oilfield Co Gudao Oil Extraction Plant filed Critical Sinopec Shengli Oilfield Co Gudao Oil Extraction Plant
Priority to CN201320749820.1U priority Critical patent/CN203570251U/en
Application granted granted Critical
Publication of CN203570251U publication Critical patent/CN203570251U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a heavy oil well wellhead leakproof device. The heavy oil well wellhead leakproof device comprises a shell (1), a threaded ejector rod (2), a push arc (3) and fixed screws (4). The shell (1) of the heavy oil well wellhead leakproof device is in cylindrical shape, the middle part of the shell is symmetrically provided with rectangular holes (B), the middle of one side rectangular hole (B) is axially provided with an opening (A), the lower part of the shell (1) is uniformly provided with three fixed screws (4), the position, vertical to the transverse central line of the opening (A), on the upper part of the shell (1) is provided with the threaded ejector rod (2), and the inner end of the threaded ejector rod is movably connected to the push arc (3). By adopting the heavy oil well wellhead leakproof device, the problem that the time for loading a packing is long due to the misalignment of a pumping well wellhead can be solved, the single-well well opening rate is increased from 97.8 percent to 98.5 percent, the monthly yield influenced by loading the packing is decreased from 0.6 ton to 0.2 ton, the time for loading the packing is reduced from 30 minutes to 14 minutes, the labor intensity of employees can be alleviated, and the well sand clamping problem can be avoided.

Description

Thick oil well mouth leak stoppage device
Technical field
the utility model relates to pumping well head auxiliary sealing device, specifically a kind of thick oil well mouth leak stoppage device.
Background technology
oil-field thick-oil well well head leakage of oil is at present the on-the-spot common problem of recovering the oil, the reason of well head leakage of oil is that viscous crude is generally rich in the high-viscosity materials such as colloid, asphalitine, in the situation that liquid measure The Small Well liquid temp is low, the crude oil that is rich in these materials is very easily attached to formation " wire drawing " on polished rod.On-the-spot packing box mainly contains two kinds: special-shaped Double-wing packing kit and common " o " type packing box.For heavy oil wells, the frictional force of these two kinds of packing kit packings is all less, sealing is poor, not enough so that " wire drawing " scrapes under mill resistance, causes for a long time well head to pollute.
Summary of the invention
the purpose of this utility model is exactly in view of the foregoing defects the prior art has, designs a kind of thick oil well mouth leak stoppage device.
the utility model is realized by following technical proposals:
the utility model comprises: pressure cap, gland, packing, housing, grease nipple.The housing of its thick oil well mouth leak stoppage device is cylindrical shape, is provided with centre bore, and centre is provided with annular spacer ring, is provided with shoe cream room below spacer ring, and is provided with grease nipple, and packing, gland are housed above spacer ring successively, and the top of housing is provided with external screw thread and is threaded with pressure cap.
the beneficial effects of the utility model are: solved the problem of thick oil well mouth packing oil leakage, avoided crude oil loss and well head to pollute, reduced worker's labour intensity, improved Oil wells management level.
Accompanying drawing explanation
fig. 1-the utility model master looks complete section structural representation.
in accompanying drawing, 1. pressure cap, 2. gland, 3. packing, 4. housing, 5. grease nipple; A. centre bore, B. shoe cream room.
The specific embodiment
below in conjunction with accompanying drawing, enforcement of the present utility model is further elaborated:
thick oil well mouth leak stoppage device is comprised of pressure cap 1, gland 2, packing 3, housing 4, grease nipple 5.In the middle of the centre bore A of the cylindrical shell 4 of its thick oil well mouth leak stoppage device, be provided with annular spacer ring 401, spacer ring 401 is provided with shoe cream room B below, and be provided with grease nipple 5, and spacer ring 401 is equipped with packing 3, gland 2 above successively, and the top of housing 4 is provided with external screw thread and is threaded with pressure cap 1.During use, polished rod passes through from centre bore A, the bottom of housing 4 and the welding of former polished rod sealer.

Claims (1)

1. a thick oil well mouth leak stoppage device, comprising: pressure cap (1), gland (2), packing (3), housing (4), grease nipple (5); It is characterized in that: the housing (4) of described thick oil well mouth leak stoppage device is cylindrical shape, be provided with centre bore (A), centre is provided with annular spacer ring (401), spacer ring (401) is provided with shoe cream room (B) below, and be provided with grease nipple (5), spacer ring (401) is equipped with packing (3), gland (2) above successively, and the top of housing (4) is provided with external screw thread and is threaded with pressure cap (1).
CN201320749820.1U 2013-11-26 2013-11-26 Heavy oil well wellhead leakproof device Expired - Fee Related CN203570251U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320749820.1U CN203570251U (en) 2013-11-26 2013-11-26 Heavy oil well wellhead leakproof device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320749820.1U CN203570251U (en) 2013-11-26 2013-11-26 Heavy oil well wellhead leakproof device

Publications (1)

Publication Number Publication Date
CN203570251U true CN203570251U (en) 2014-04-30

Family

ID=50537985

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320749820.1U Expired - Fee Related CN203570251U (en) 2013-11-26 2013-11-26 Heavy oil well wellhead leakproof device

Country Status (1)

Country Link
CN (1) CN203570251U (en)

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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: 20140430

Termination date: 20141126

EXPY Termination of patent right or utility model