CN2135058Y - Antiwear device for well packer - Google Patents
Antiwear device for well packer Download PDFInfo
- Publication number
- CN2135058Y CN2135058Y CN 92233773 CN92233773U CN2135058Y CN 2135058 Y CN2135058 Y CN 2135058Y CN 92233773 CN92233773 CN 92233773 CN 92233773 U CN92233773 U CN 92233773U CN 2135058 Y CN2135058 Y CN 2135058Y
- Authority
- CN
- China
- Prior art keywords
- antiwear
- flange form
- well packer
- form bearing
- drilling
- 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
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- Joints Allowing Movement (AREA)
Abstract
The utility model provides an antiwear device for well packer body used in the process of the drilling of petroleum and natural gas in oil industry. The antiwear device for well packer body is arranged between a well packer and the conduit pipe of drilling fluid and is composed of a bearing arranged inside a flange, an antiwear sleeve, etc.; the inner diameter of the antiwear sleeve is smaller than the inner diameter of the well packer body; a drilling pole only contacts with the antiwear sleeve because of an oblique well mouth during well drilling so as to cause the well packer body to obtain protection; in addition, because the antiwear sleeve can rotate along with the drilling pole, the damage of the antiwear sleeve can be prevented consequently.
Description
The utility model belongs to petroleum industry and is used for petroleum and natural gas drilling process blowout preventer body shoe.
Often do not damage in the petroleum and natural gas drilling process at present, and the current measure of taking is: need change the blowout preventer housing for serious wearing and tearing, then take outer repairing welding measure to repair for general wearing and tearing because of well head is not just causing well head blowout preventer body eccentric wear.Change 6.5 ten thousand yuan of blowout preventer housing level payments, every price for repairing of outer repairing welding average 30,000 does not have.Only Dagang Oilfield just had 71 inferior body eccentric wear phenomenons that occur, the millions of units of loss RMB in 89～91 years in the blowout preventer of 65 uses.
The purpose of this utility model is: for avoiding the defective part of above-mentioned prior art; design a kind of blowout preventer shoe, wear-resisting and rotatable by wearing bush only contacts drill string with wearing bush; to reach protection blowout preventer body, prevent unnecessary fund waste not by eccentric wear.
Blowout preventer shoe described in the utility model includes the flange form bearing support, wearing bush is arranged among the flange form bearing support, bearing is placed between the boss of wearing bush and flange form bearing support, a bearing positioning boss is arranged on the cylindrical of wearing bush, the flange form bearing support is provided with flange form bearing beast, one seal is arranged between them, and they link with packing ring by joint bolt and are in the same place, wherein wearing bush rotates with drilling rod, thereby prevented the damage of blowout preventer body, described wearing bush is by 15CrMnMo(chromium manganese molybdenum) material constituted.If wearing bush damages, only need to change its wearing bush, and need not change other member.
The utility model has the advantages that the compact conformation of device, overall dimension is little, in light weight, easy accessibility, cost low (about 5000 yuan of complete unit cost), supporting capacity strong (basic static capacity (BSC) rating of bearing reaches the nominal load of rig), safe and reliable, few easy workout part (having only wearing bush is consumable accessory, in case wearing and tearing are changed convenient).The social benefit that the utility model can produce is: produce about 5000 yuan of complete unit cost, calculate by taking outer repairing welding to repair the required expense of blowout preventer body, save 2.5 ten thousand yuan for average every, calculate by changing the blowout preventer housing, on average save 13.5 ten thousand yuan for every, if consider the reusability of this shoe again, then benefit is better.
Further describe structure of the present utility model below in conjunction with accompanying drawing, wherein:
Fig. 1 is the schematic diagram of the utility model blowout preventer shoe.
Blowout preventer shoe shown in the figure, it comprises a flange form bearing support (1), wearing bush (5) is arranged among the flange form bearing support (1), bearing (3) is placed between wearing bush (2) and the flange form bearing support (1), a bearing positioning boss is arranged on the cylindrical of wearing bush (2), flange form bearing support (1) is provided with flange form bearing cover (2), and a seal (4) is arranged between them, and they link with packing ring 7 by connector screw 6 and are in the same place.Wearing bush (5) and bearing (3) are rotating part, and rotating part can bear axial force, also can bearing radial force.
Claims (3)
1, a kind of blowout preventer shoe that is used for drilling well, it is characterized in that, this device includes the flange form bearing support, wearing bush be arranged on the flange form bearing support among, bearing is placed between the boss of wearing bush and flange form bearing support, a bearing positioning boss is arranged on the cylindrical of wearing bush, and the flange form bearing support is provided with the flange form bearing cover, and a seal is arranged between them.
2,, it is characterized in that between flange form bearing support and the flange form bearing cover linking with packing ring and be in the same place by joint bolt according to right 1 described blowout preventer shoe.
3, blowout preventer shoe according to claim 1 is characterized in that the wearing bush material is 15CrMnMo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92233773 CN2135058Y (en) | 1992-09-23 | 1992-09-23 | Antiwear device for well packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92233773 CN2135058Y (en) | 1992-09-23 | 1992-09-23 | Antiwear device for well packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2135058Y true CN2135058Y (en) | 1993-06-02 |
Family
ID=33775998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92233773 Expired - Fee Related CN2135058Y (en) | 1992-09-23 | 1992-09-23 | Antiwear device for well packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2135058Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737327B (en) * | 2004-08-19 | 2010-09-29 | 日长石有限公司 | Rotating pressure control device |
| CN112096333A (en) * | 2020-09-30 | 2020-12-18 | 中国石油天然气集团有限公司 | Well plugging device upper step protection device and method for rapidly judging wear degree |
-
1992
- 1992-09-23 CN CN 92233773 patent/CN2135058Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737327B (en) * | 2004-08-19 | 2010-09-29 | 日长石有限公司 | Rotating pressure control device |
| CN112096333A (en) * | 2020-09-30 | 2020-12-18 | 中国石油天然气集团有限公司 | Well plugging device upper step protection device and method for rapidly judging wear degree |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |