CN203335019U - Alloy steel head float shoe - Google Patents
Alloy steel head float shoe Download PDFInfo
- Publication number
- CN203335019U CN203335019U CN2013202623402U CN201320262340U CN203335019U CN 203335019 U CN203335019 U CN 203335019U CN 2013202623402 U CN2013202623402 U CN 2013202623402U CN 201320262340 U CN201320262340 U CN 201320262340U CN 203335019 U CN203335019 U CN 203335019U
- Authority
- CN
- China
- Prior art keywords
- float shoe
- alloy
- alloy steel
- shoe body
- steel head
- 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
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to an alloy steel head float shoe which comprises an alloy drill bit, a float shoe body, set cement and a one-way valve. One end of the float shoe body is connected with the alloy drill bit in a threaded mode, the set cement is arranged in the float shoe body, the one-way valve is arranged in the set cement, and the top end of the alloy drill bit is of an arc structure. Compared with the prior art, the alloy steel head float shoe has the advantages that the alloy steel head float shoe is simple in structure, convenient to connect, high in safety, scientific and practical; due to the fact that one end of the float shoe body is connected with the alloy drill bit in the threaded mode, the service life of the float shoe is greatly prolonged; due to the fact that the float shoe can replace a guiding shoe and a back pressure valve, mounting construction steps are effectively reduced, labor intensity of workers is reduced, and well drilling work efficiency is improved.
Description
Technical field
The utility model relates to the petroleum machinery technical field, particularly a kind of alloy steel toe float shoe.
Background technology
In drilling process cased the time, the be everlasting end splicing sleeve guide shoe of sleeve pipe and back pressure valve etc. is used for guiding sleeve and injects to the well center, for fear of causing the cover blockage because of sleeve bottom scraping wall cake and rock and transferring circuitous resistance, connect back pressure valve at inside pipe casing again, in the outer flow direction pipe of individual event conducting limiter tube, therefore, installing or, with changing guide shoe and back pressure valve complex steps, reducing operating efficiency.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, alloy steel toe float shoe of substituting guide shoe and back pressure valve, increasing work efficiency.
For achieving the above object, the utility model is realized by the following technical solutions:
A kind of alloy steel toe float shoe, comprise alloy bit, float shoe body, Behavior of Hardened Cement Paste and one way valve, and described float shoe body threaded one end is connected with alloy bit, and float shoe body inside is provided with Behavior of Hardened Cement Paste, and Behavior of Hardened Cement Paste inside is provided with one way valve.
Described alloy bit top is arc structure.
Compared with prior art, the beneficial effects of the utility model are:
A kind of alloy steel toe float shoe, there are characteristics simple in structure, easy to connect, safe, that science is practical, because float shoe body threaded one end is connected with alloy bit, greatly improved the application life of float shoe, simultaneously because this float shoe can substitute guide shoe and back pressure valve, effectively reduce the installation step, alleviated labor strength, improved the drilling well operating efficiency.
The accompanying drawing explanation
Fig. 1 is structure chart of the present utility model.
1-alloy bit, 2-float shoe body, 3-Behavior of Hardened Cement Paste, 4-one way valve
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is further illustrated:
As shown in Figure 1, a kind of alloy steel toe of the utility model float shoe, comprise alloy bit 1, float shoe body 2, Behavior of Hardened Cement Paste 3 and one way valve 4, and described float shoe body 2 threaded one ends are connected with alloy bit 1, float shoe body 2 inside are provided with Behavior of Hardened Cement Paste 3, and Behavior of Hardened Cement Paste 3 inside are provided with one way valve 4; Described alloy bit 1 top is arc structure.
While using the utility model, float shoe body 2 one ends and sleeve pipe are linked together, then can start well cementing operation; The utility model not only can be for sleeve pipe and the production string of general technology, and can be for deep-well, ultradeep well and special well.
Above described be only basic principle of the present utility model, not the utility model is imposed any restrictions, everyly according to the utility model, it is carried out to equivalent variations and modification, all within the category of the art of this patent protection scheme.
Claims (2)
1. an alloy steel toe float shoe, is characterized in that, comprises alloy bit, float shoe body, Behavior of Hardened Cement Paste and one way valve, and described float shoe body threaded one end is connected with alloy bit, and float shoe body inside is provided with Behavior of Hardened Cement Paste, and Behavior of Hardened Cement Paste inside is provided with one way valve.
2. a kind of alloy steel toe float shoe according to claim 1, is characterized in that, described alloy bit top is arc structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202623402U CN203335019U (en) | 2013-05-15 | 2013-05-15 | Alloy steel head float shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202623402U CN203335019U (en) | 2013-05-15 | 2013-05-15 | Alloy steel head float shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335019U true CN203335019U (en) | 2013-12-11 |
Family
ID=49703697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202623402U Expired - Fee Related CN203335019U (en) | 2013-05-15 | 2013-05-15 | Alloy steel head float shoe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314513A (en) * | 2014-08-15 | 2015-01-28 | 中国石油天然气股份有限公司 | Fishtail type float collar |
-
2013
- 2013-05-15 CN CN2013202623402U patent/CN203335019U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314513A (en) * | 2014-08-15 | 2015-01-28 | 中国石油天然气股份有限公司 | Fishtail type float collar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201924870U (en) | Hydraulic setting tool | |
| CN202882841U (en) | Pipe external packer capable of being self-expandable when encountering water or oil | |
| CN204060596U (en) | A kind of down-hole unfreezing hydraulic force increasing device | |
| CN204436320U (en) | A kind of hydraulic releasing big orifice packer | |
| CN203335019U (en) | Alloy steel head float shoe | |
| CN203515558U (en) | Deep well water source well water level monitoring process pipe column | |
| CN201301694Y (en) | Hydraulic jet pump separate zone oil production process pipe string | |
| CN103452496A (en) | Injection-production integrated automatic switching production joint for thick oil thermal production well | |
| CN203879719U (en) | Integrated gas injecting and oil extracting pump | |
| CN202520228U (en) | Integrated concentric overburden drilling tool | |
| CN103375135A (en) | Integrated concentric drill pipe | |
| CN203655243U (en) | Perforation deep extraction integrated pipe column | |
| CN201778772U (en) | Small hole side drilling blocking fracturing string | |
| CN201593393U (en) | Automatic expansion type external pipe packer | |
| CN202249957U (en) | Coal powder spiral anti-blocking device | |
| CN204782834U (en) | Novel continuous outside of tubes slips connector | |
| CN201106441Y (en) | Three-section separate injection string for water injection of horizontal well | |
| CN203488143U (en) | Automatic mud grouting float-collar float shoe | |
| CN103174398A (en) | Drilling type fracture bridge plug | |
| CN201425018Y (en) | Pipe column drainage pump for oil well | |
| CN201650167U (en) | Tail pressurizer for sand wash | |
| CN204804715U (en) | Separate production technology tubular column | |
| CN203655174U (en) | Detachable drill rod | |
| CN203441386U (en) | Injection-production integrated production joint capable of performing automatic switch for thickened oil thermal production well | |
| CN203640669U (en) | Balance-type water injection packer |
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: 20131211 Termination date: 20210515 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |