CN2869290Y - Antiseize three-jaw casing roller - Google Patents
Antiseize three-jaw casing roller Download PDFInfo
- Publication number
- CN2869290Y CN2869290Y CN 200620089296 CN200620089296U CN2869290Y CN 2869290 Y CN2869290 Y CN 2869290Y CN 200620089296 CN200620089296 CN 200620089296 CN 200620089296 U CN200620089296 U CN 200620089296U CN 2869290 Y CN2869290 Y CN 2869290Y
- Authority
- CN
- China
- Prior art keywords
- jaw
- expander
- head1
- jamming
- body2
- 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
The utility model relates to an anti-jamming three-jaw tube expander used for shaping the bushing in the oil, gas and water well, comprising a three-jaw expander head1, an anti-jamming expander body2, an assembling cap3 and a stabilizing nail4. The three-jaw expander head1 is fixed on the outside of the anti-jamming expander body2. The assembling cap3 is mounted at the end of the three-jaw expander head1 in order to hold the anti-jamming expander body2 to prevent body2 from disengaging from the three-jaw expander head1. The assembling cap3 is connected with the three-jaw expander head1 by square buckle and fixed by the stabilizing nail4. The tube expander has the advantages of simple structure, easy operation, reliably running, bigger expanding diameter with max. 18-20mm and anti-jamming and can be used to get a satisfied result during oil, gas or water well servicing with serious diameter deformation of bushing.
Description
Technical field:
The utility model relates to a kind of downhole tool that is used for oil field oil, gas, the distortion of well repairing casing.
Background technology:
Along with oil field development and oil, gas, the prolongation of well production time, oil, gas, well down-hole technology status worsen day by day, and sleeve shrinking diameter distortion well number increases, and the workover treatment work amount of repairing casing increases greatly.At present, adopting the various tube expanders of plow-shape tube expander and other form when on-the-spot oil, gas, the construction of well sleeve shrinking diameter Deformation Repair, though these tube expanders can play the expand tube effect in varying degrees, but the function that does not possess this cubical expansion footpath, bloated footpath has only 2-3mm usually, but also have complex structure, Yi Ka and shortcoming such as can only disposablely use, can not satisfy the needs of the comparatively serious sleeve pipe repairing construction operation of necking deformation.
Summary of the invention:
The purpose of this utility model is to provide the anti-sticking three-jaw tube expander that a kind of footpath simple in structure, bloated is big, can satisfy the serious oil of sleeve shrinking diameter distortion, gas, well repair needs.
The utility model is to realize like this.This kind tube expander is made up of the bloated head of three-jaw, the bloated body of anti-sticking, assembled cap and steady nail, the bloated external side of anti-sticking is set with the bloated head of three-jaw, three-jaw expands end to end, and end is provided with assembled cap, being used for blocking the bloated body of anti-sticking makes it not break away from the bloated head of three-jaw, the bloated head of an assembled cap and three-jaw employing side links and connects, and adopts steady nail to fix.In oil, gas, well repairing casing construction operation process, the bloated body of this tube expander anti-sticking upper end is connected with drilling tool, drilling tool produces the phenomenon that is hampered during down to down-hole casing necking deformation position, at this moment, can utilize the tool hanging load and drilling pressurization, the anti-sticking body that expands moves down under the pressure of the drill operation, and squeezes the three-jaw that expands expand three pawls of head to necking deformation internal surface of sleeve pipe expansion extruding under the tapering effect; When drilling tool was mentioned, the anti-sticking body that expands moved simultaneously, and expand three pawls of head of three-jaw are regained under self metallic elastic effect and expanded outwardly pressure and recover original form, guarantee that the bit freezing phenomenon does not take place the down-hole tube expander.
The utility model is simple in structure, and is easy for operation, reliable operation, and the footpath of expanding is big, and bit freezing does not utilize it to obtain gratifying effect in the comparatively serious oil of sleeve shrinking diameter distortion, gas, well repair, and maximum expanding diameter can reach 18-20mm.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
The utility model is provided by following examples, is illustrated below in conjunction with accompanying drawing.
As shown in the figure, the utility model by three-jaw expand 1, anti-sticking expands body 2, assembled cap 3 and surely follow closely 4 and form, its structure, annexation are as follows: anti-sticking body 2 outsides of expanding are set with three-jaw and expand 1, three-jaw 1 tail end that expands is provided with and is used for blocking anti-sticking 1 assembled cap that does not break away from 3 that expands that body 2 makes it and three-jaw expands, and assembled cap 3 and three-jaw 1 side of employinging of expanding links and connects and adopt steady nail 4 to fix.Wherein, it 1 is a hollow round tube body that three-jaw expands, and its top periphery is the face of cylinder, and tail end is provided with to be installed assembled cap and detain screw with steady nail side, and the bottom is a taper shape, is uniformly distributed with the pawl that 3 taperings are not more than 1: 15 along the circumference.The bloated body 2 of anti-sticking is the tapered tubular body in a lower end, upper end, its face of cylinder, top is provided with to be connected with drilling tool uses internal thread, the middle part undergauge also is provided with upper and lower step, leaves the gap that assembled cap is set so that give between bloated 1 of itself and the three-jaw, and the bottom periphery is a taper seat.
Claims (1)
1, a kind of anti-sticking three-jaw tube expander, form by the bloated head of three-jaw (1), the bloated body (2) of anti-sticking, assembled cap (3) and steady nail (4), it is characterized in that: expand body (2) outside of anti-sticking is set with the three-jaw head (1) that expands, three-jaw head (1) tail end that expands is provided with and is used for blocking the anti-sticking body (2) that expands and makes it and the three-jaw assembled cap (3) that head (1) do not break away from that expands, and assembled cap (3) and three-jaw head (1) side of employinging of expanding links and connects and adopt steady nail (4) to fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620089296 CN2869290Y (en) | 2006-02-16 | 2006-02-16 | Antiseize three-jaw casing roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620089296 CN2869290Y (en) | 2006-02-16 | 2006-02-16 | Antiseize three-jaw casing roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2869290Y true CN2869290Y (en) | 2007-02-14 |
Family
ID=37724225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620089296 Expired - Fee Related CN2869290Y (en) | 2006-02-16 | 2006-02-16 | Antiseize three-jaw casing roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2869290Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503996A (en) * | 2020-12-03 | 2021-03-16 | 冰轮环境技术股份有限公司 | High-pressure self-locking water expansion head |
-
2006
- 2006-02-16 CN CN 200620089296 patent/CN2869290Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503996A (en) * | 2020-12-03 | 2021-03-16 | 冰轮环境技术股份有限公司 | High-pressure self-locking water expansion head |
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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: 20070214 Termination date: 20100216 |