CN2723669Y - Pull type well drilling rig - Google Patents
Pull type well drilling rig Download PDFInfo
- Publication number
- CN2723669Y CN2723669Y CN 200420063372 CN200420063372U CN2723669Y CN 2723669 Y CN2723669 Y CN 2723669Y CN 200420063372 CN200420063372 CN 200420063372 CN 200420063372 U CN200420063372 U CN 200420063372U CN 2723669 Y CN2723669 Y CN 2723669Y
- Authority
- CN
- China
- Prior art keywords
- drilling
- type well
- drill string
- well
- drilling rig
- 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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Abstract
Disclosed is a pull type well drilling rig, mainly solving the problem that the present well drilling rig can easily cause a straight drilling well inclined. The utility model is characterized in that a drilling column (1) is coated with a cylindrical pressing cover (2), the cylindrical pressing cover (2) and the drilling column (1) can relatively slip, and the corresponding position outside of the cylindrical pressing cover (2) is fixed with a stabilizer (3). The pull type well drilling rig has the advantage of good effect of preventing the well against inclination.
Description
Technical field:
The utility model relates to the used drilling tool in oil drilling field, especially pull-type well drilling tool.
Background technology:
Drilling well is the basic means of subterranean resource exploration and developments such as petroleum gas, and the straight well deviation control with drilling straight well is one of technical barrier of often running into of situ of drilling well.When beating straight well, if hole deviation is excessive, can make well depart from underground design object, upset the layout of oil-gas field development; For investigation and prospecting, hole deviation is big, can make well depth generation error, makes the geologic information of gained untrue, even departs from exploration targets; Well has been beaten tiltedly, returns drilling well and oil recovery is added to the difficulties, even causes serious down-hole accident.And in the drilling straight-hole drilling well at present, the pressure of the drill is directly provided by drill string, therefore the drill string of this part is subjected to very big pressure, crooked easily, make that the length of the drill bit and first stabilizer can not be oversize, pendulum force is very little, unavoidable hole deviation during drilling straight-hole, cause economic loss and hidden danger, influenced drilling quality.
The utility model content:
In order to overcome the deficiency that existing drilling tool easily causes the drilling straight-hole hole deviation, the utility model provides a kind of pull-type well drilling tool, and this pull-type well drilling tool has the hole deviation of preventing good effectiveness.
The technical solution of the utility model is: this pull-type well drilling tool comprises that external fixation has the drill string of stabilizer, and drill string is with the tubular pressure cuffs outward, and pressure cuffs can be slided relatively with drill string, and the outer corresponding position of pressure cuffs is fixed with stabilizer.
The beneficial effect that the utlity model has is: this pull-type well drilling tool is owing to be with the tubular pressure cuffs outside drill string, the pressure of the drill is provided by the outer pressure cuffs of drill string like this, make the drill string tension, thereby drill string is not flexible, increases pendulum force, has prevented that effectively the hole deviation phenomenon when drilling straight-hole from producing, reduced economic loss, eliminate hidden danger, improved drilling quality, and simple in structure.
Description of drawings:
Accompanying drawing 1 is the utility model structure sectional view.
1-drill string among the figure, 2-pressure cuffs, 3-stabilizer.
The specific embodiment:
Below in conjunction with accompanying drawing will the utility model is described in further detail:
By shown in Figure 1, this pull-type well drilling tool comprises that external fixation has the drill string 1 of stabilizer 3, the drill string 1 outer tubular pressure cuffs 2 that is with, pressure cuffs 2 can be slided relatively with drill string 1, the pressure of the drill is provided by drill string 1 outer pressure cuffs 3 like this, make drill string 1 tension, thereby drill string 1 is not flexible, increase pendulum force, prevented that effectively the hole deviation phenomenon produces when drilling straight-hole; Pressure cuffs 2 outer corresponding positions are fixed with stabilizer 3,3 centralizing functions of stabilizer.
Claims (1)
1, a kind of pull-type well drilling tool, comprise that external fixation has the drill string (1) of stabilizer (3), it is characterized in that: drill string (1) is outer to be with tubular pressure cuffs (2), and pressure cuffs (2) can be slided relatively with drill string (1), and the outer corresponding position of pressure cuffs (2) is fixed with stabilizer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063372 CN2723669Y (en) | 2004-09-06 | 2004-09-06 | Pull type well drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063372 CN2723669Y (en) | 2004-09-06 | 2004-09-06 | Pull type well drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2723669Y true CN2723669Y (en) | 2005-09-07 |
Family
ID=35037298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420063372 Expired - Fee Related CN2723669Y (en) | 2004-09-06 | 2004-09-06 | Pull type well drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2723669Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029936A (en) * | 2019-04-23 | 2019-07-19 | 西南石油大学 | A kind of injection pressure formula bilayer drill string deviation control with drilling straight well drilling tool |
-
2004
- 2004-09-06 CN CN 200420063372 patent/CN2723669Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029936A (en) * | 2019-04-23 | 2019-07-19 | 西南石油大学 | A kind of injection pressure formula bilayer drill string deviation control with drilling straight well drilling tool |
| CN110029936B (en) * | 2019-04-23 | 2020-06-30 | 西南石油大学 | Injection-type double-layer drill string anti-deviation straight drilling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050907 Termination date: 20100906 |