CN201401634Y - Composite lower sealing head of gas storage well sleeve - Google Patents

Composite lower sealing head of gas storage well sleeve Download PDF

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Publication number
CN201401634Y
CN201401634Y CN2009200795681U CN200920079568U CN201401634Y CN 201401634 Y CN201401634 Y CN 201401634Y CN 2009200795681 U CN2009200795681 U CN 2009200795681U CN 200920079568 U CN200920079568 U CN 200920079568U CN 201401634 Y CN201401634 Y CN 201401634Y
Authority
CN
China
Prior art keywords
gas storage
storage well
well sleeve
sealing head
lower sealing
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
CN2009200795681U
Other languages
Chinese (zh)
Inventor
陈立峰
陈学高
马平
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 OIL NATURAL GAS TECHNOLOGY CO., LTD.
Original Assignee
SICHUAN OIL AND NATURAL GAS SCIENTIFIC DEVELOPMENT 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 SICHUAN OIL AND NATURAL GAS SCIENTIFIC DEVELOPMENT Co Ltd filed Critical SICHUAN OIL AND NATURAL GAS SCIENTIFIC DEVELOPMENT Co Ltd
Priority to CN2009200795681U priority Critical patent/CN201401634Y/en
Application granted granted Critical
Publication of CN201401634Y publication Critical patent/CN201401634Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a composite lower sealing head of a gas storage well sleeve. The lower sealing head comprises a lower sealing head body with a connecting thread, and is characterized in that a drill bit is fixedly connected at the lower end of the lower sealing head body and is provided with two or more than two longitudinal scrapers; and the maximal outer diameter of each longitudinalscraper is larger than the outer diameter of the lower sealing head body. The utility model is further improved in that hard alloys are welded on the cutting edges of the longitudinal scrapers in a built-up manner. The utility model can solve the problem that the gas storage well sleeve is difficult to be mounted in place due to the resistance in the lowering process, thereby improving the production efficiency.

Description

The combined type lower seal head of gas storage well sleeve pipe
Technical field
The utility model relates to a kind of combined type lower seal head that is used for the gas storage well sleeve pipe.
Background technique
When the underground gas storage casing of CNG gas station was installed, lower seal head was connected with the gas storage well sleeve pipe by internal thread, and is positioned at the lower end of gas storage well sleeve pipe, plays sealing gas storage well sleeve pipe; In the process that the gas storage well sleeve pipe is transferred, as run into the situation of borehole wall undergauge, then the gas storage well sleeve pipe is difficult to be in place, and has influenced manufacturing efficiency.
The model utility content
The purpose of this utility model is the above-mentioned deficiency at prior art, and a kind of combined type lower seal head of gas storage well sleeve pipe is provided, and it can solve the difficult problem that the gas storage well sleeve pipe is hampered and is difficult to be in place in the process of transferring, improved manufacturing efficiency.
For achieving the above object, the combined type lower seal head of gas storage well sleeve pipe of the present utility model, comprise the lower seal head body that is provided with connecting thread, it is characterized in that connecting firmly a drill bit in the lower end of lower seal head body, described drill bit is provided with the vertical scraper more than two or two, and vertically the maximum outside diameter of scraper is greater than the external diameter of lower seal head body;
During use, the combined type lower seal head is connected with the gas storage well sleeve pipe by screw thread, and is positioned at the lower end of gas storage well sleeve pipe; In the process that the gas storage well sleeve pipe is transferred, as run into the situation of borehole wall undergauge, then by rotation gas storage well sleeve pipe, this moment the combined type lower seal head vertical scraper machinable borehole wall ground, enlarge hole diameter, guarantee that the gas storage well sleeve pipe successfully is in place, and has improved manufacturing efficiency;
As further improvement of the utility model, built-up welding has hard alloy layer on the cutting edge of described vertical scraper, can improve the working life of vertical scraper;
In sum, the utility model can solve the difficult problem that the gas storage well sleeve pipe is hampered and is difficult to be in place in the process of transferring, improved manufacturing efficiency.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Fig. 2 is the worm's eye view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
By illustrated in figures 1 and 2, the combined type lower seal head of this gas storage well sleeve pipe, comprise the lower seal head body 1 that is provided with connecting thread, lower end at lower seal head body 1 connects firmly a drill bit 2 by several screws, described drill bit 2 is provided with four vertical scrapers 3, vertically the maximum outside diameter of scraper 3 is greater than the external diameter of lower seal head body 1, and built-up welding has hard alloy layer 4 on the cutting edge of described vertical scraper 3, can improve the working life of vertical scraper 3;
During use, the combined type lower seal head is connected with the gas storage well sleeve pipe by screw thread, and is positioned at the lower end of gas storage well sleeve pipe; In the process that the gas storage well sleeve pipe is transferred, as run into the situation of borehole wall undergauge, then by rotation gas storage well sleeve pipe, this moment the combined type lower seal head vertical scraper 3 machinable borehole wall ground, enlarge hole diameter, guarantee that the gas storage well sleeve pipe successfully is in place, and has improved manufacturing efficiency.

Claims (2)

1. the combined type lower seal head of a gas storage well sleeve pipe, comprise the lower seal head body that is provided with connecting thread, it is characterized in that connecting firmly a drill bit in the lower end of lower seal head body, described drill bit is provided with the vertical scraper more than two or two, and vertically the maximum outside diameter of scraper is greater than the external diameter of lower seal head body.
2. the combined type lower seal head of gas storage well sleeve pipe as claimed in claim 1 is characterized in that built-up welding has hard alloy layer on the cutting edge of described vertical scraper.
CN2009200795681U 2009-03-11 2009-03-11 Composite lower sealing head of gas storage well sleeve Expired - Lifetime CN201401634Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200795681U CN201401634Y (en) 2009-03-11 2009-03-11 Composite lower sealing head of gas storage well sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200795681U CN201401634Y (en) 2009-03-11 2009-03-11 Composite lower sealing head of gas storage well sleeve

Publications (1)

Publication Number Publication Date
CN201401634Y true CN201401634Y (en) 2010-02-10

Family

ID=41661431

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200795681U Expired - Lifetime CN201401634Y (en) 2009-03-11 2009-03-11 Composite lower sealing head of gas storage well sleeve

Country Status (1)

Country Link
CN (1) CN201401634Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103964115A (en) * 2014-05-23 2014-08-06 江村 Self-tapping type high-pressure underground gas storage well

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103964115A (en) * 2014-05-23 2014-08-06 江村 Self-tapping type high-pressure underground gas storage well
CN103964115B (en) * 2014-05-23 2016-07-06 江村 Self-tapping type high pressure underground gas 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 CHUANYOU GAS TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: SICHUAN OIL AND NATURAL GAS SCIENTIFIC DEVELOPMENT CO., LTD.

CP03 Change of name, title or address

Address after: 8 No. 643000 Zigong province Sichuan City Industrial Park Road Itakura Ryugo

Patentee after: SICHUAN OIL NATURAL GAS TECHNOLOGY CO., LTD.

Address before: 643000 Zigong city of Sichuan province science and technology building, 8 Floor South Street osmanthus

Patentee before: Sichuan Oil and Natural Gas Scientific Development Co., Ltd.

CX01 Expiry of patent term

Granted publication date: 20100210

CX01 Expiry of patent term