CN201554414U - High-performance gas storage wellhead - Google Patents

High-performance gas storage wellhead Download PDF

Info

Publication number
CN201554414U
CN201554414U CN2009203161565U CN200920316156U CN201554414U CN 201554414 U CN201554414 U CN 201554414U CN 2009203161565 U CN2009203161565 U CN 2009203161565U CN 200920316156 U CN200920316156 U CN 200920316156U CN 201554414 U CN201554414 U CN 201554414U
Authority
CN
China
Prior art keywords
flange
gas storage
sealing
storage 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 - Lifetime
Application number
CN2009203161565U
Other languages
Chinese (zh)
Inventor
梅宗清
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.)
SICHUAN HWAYOO PETROLEUM DRILLING & PRODUCTION CO., LTD.
Original Assignee
LUZHOU CHUANYOU DRILING EQUIPMENT 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 LUZHOU CHUANYOU DRILING EQUIPMENT CO Ltd filed Critical LUZHOU CHUANYOU DRILING EQUIPMENT CO Ltd
Priority to CN2009203161565U priority Critical patent/CN201554414U/en
Application granted granted Critical
Publication of CN201554414U publication Critical patent/CN201554414U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a high-performance gas storage wellhead which comprises a flange assembled with a gas storage well; and a flange plunger piston extending into a casing head of the gas storage well is arranged at the bottom of the flange. The high-performance gas storage wellhead is characterized in that a ring groove is formed on the matching surface which is on the flange and matched with the casing head of the gas storage well; a sealing gasket ring is mounted in the ring groove; a sealing groove is formed on the outer wall of the flange plunger piston; and a sealing ring is arranged in the sealing groove. In the utility model, the flange plunger piston matched with the casing head is additionally arranged in the basis of the original flange-type wellhead; and the sealing ring on the plunger piston and the sealing gasket ring on the end surface of the flange form double sealing structures, so the wellhead is sealed more reliably, and the safety is guaranteed. Therefore, the requirements for convenient detection, maintenance and dismounting are met under the premise of ensuring the sealing reliability; and the sealing performance does not decrease when in reassembling.

Description

High performance gas storage well head
Technical field
The utility model relates to compressed natural gas gas storage well field, is specifically related to a kind of wellhead assembly of sealing of well for storage.
Background technology
Compressed natural gas adopts the mode of well for storage more, its well head was connected by former screw thread with the connected mode of sleeve pipe, be improved to flange form and connect,, just occurred the problem of sealing performance decline when well head and sleeve pipe are reset after dismounting again owing to detect and the needs of maintenance.
The utility model content
The purpose of this utility model provide a kind of gas storage well can be sealed intact, the high performance gas storage well head that adopts flange form to connect.
The technical solution of the utility model is:
A kind of high performance gas storage well head, comprise flange with the gas storage well assembling, the plunger flange that extends in the gas storage well casing head is arranged at the flange bottom, it is characterized in that: on the fitting face that cooperates with the gas storage well casing head on the flange, cannelure is arranged, gasket ring is installed in cannelure, on the plunger flange outer wall, seal groove is arranged, sealing ring is installed in seal groove.
The beneficial effects of the utility model are: increased by one section plunger flange that is complementary with casing head on the basis of former flange form well head, on plunger flange, establish seal groove and be equipped with sealing ring, make it to form hermetically-sealed construction with internal surface of sleeve pipe, the place forms first seal structures at the casing head inwall, between flange and casing head, adopt gasket ring, form second seal structures, make the well head sealing more reliable, safety is guaranteed.First seal structures adopts ripe plunger type sealing to satisfy the needs of detection and repair demolition, and its sealing performance can not descend when ressembling; Moreover, when running into special circumstances, under the situation that first seal structures lost efficacy, second seal structures and can guarantee that sealing performance is intact, thus make the gas storage well head guarantee the reliability of its sealing in the effect of double seal measure.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the schematic diagram of the embodiment of the high performance gas storage well head of the utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
A kind of high performance gas storage well head, comprise flange 1 with the gas storage well assembling, the plunger flange 8 that extends in the gas storage well casing head is arranged at flange 1 bottom, the flange 4 of flange 1 is fixed on the gas storage well casing head 7 by bolt 2, nut 3, on flange 4 and end face that casing head 7 cooperates, cannelure is arranged, gasket ring 5 is installed in cannelure, on plunger flange 8 outer walls, seal groove 9 is arranged, sealing ring 6 is installed in seal groove 9.
Disclosed all features in this manual, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this manual (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims (1)

1. high performance gas storage well head, comprise flange with the gas storage well assembling, the plunger flange that extends in the gas storage well casing head is arranged at the flange bottom, it is characterized in that: on the fitting face that cooperates with the gas storage well casing head on the flange, cannelure is arranged, gasket ring is installed in cannelure, on the plunger flange outer wall, seal groove is arranged, sealing ring is installed in seal groove.
CN2009203161565U 2009-11-30 2009-11-30 High-performance gas storage wellhead Expired - Lifetime CN201554414U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009203161565U CN201554414U (en) 2009-11-30 2009-11-30 High-performance gas storage wellhead

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009203161565U CN201554414U (en) 2009-11-30 2009-11-30 High-performance gas storage wellhead

Publications (1)

Publication Number Publication Date
CN201554414U true CN201554414U (en) 2010-08-18

Family

ID=42614096

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009203161565U Expired - Lifetime CN201554414U (en) 2009-11-30 2009-11-30 High-performance gas storage wellhead

Country Status (1)

Country Link
CN (1) CN201554414U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102174986A (en) * 2011-03-01 2011-09-07 自贡力源科技有限公司 Wellhead connecting device of underground gas storage well

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102174986A (en) * 2011-03-01 2011-09-07 自贡力源科技有限公司 Wellhead connecting device of underground gas storage well

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: SICHUAN HWAYOO PETROLEUM DRILLING + PRODUCTION EQU

Free format text: FORMER NAME: LUZHOU CHUANYOU DRILL + PRODUCTION EQUIPMENT CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 646006 No. 78 North madder Road, Sichuan, Luzhou

Patentee after: SICHUAN HWAYOO PETROLEUM DRILLING & PRODUCTION CO., LTD.

Address before: 646006 No. 78 North madder Road, Sichuan, Luzhou

Patentee before: Luzhou Chuanyou Driling Equipment Co.,Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20100818