CN203097787U - Casing mandrel with conical rollers - Google Patents
Casing mandrel with conical rollers Download PDFInfo
- Publication number
- CN203097787U CN203097787U CN 201220709001 CN201220709001U CN203097787U CN 203097787 U CN203097787 U CN 203097787U CN 201220709001 CN201220709001 CN 201220709001 CN 201220709001 U CN201220709001 U CN 201220709001U CN 203097787 U CN203097787 U CN 203097787U
- Authority
- CN
- China
- Prior art keywords
- mandrel
- casing
- central spindle
- conical rollers
- awl roller
- 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 a casing mandrel with conical rollers. The casing mandrel comprises a central spindle, lock pins, more than three conical rollers, hinge pins and a guide cone. A drill rod fastener is arranged on the upper portion of the central spindle, trapezoidal grooves are arranged in the middle of the central spindle, the hinge pins penetrate through the conical rollers, are fixed into the trapezoidal grooves and are fixed to the central spindle by the aid of the lock pins, the guide cone is arranged on the lower portion of the central spindle, and the conical rollers are uniformly distributed around the axis of the central spindle. The casing mandrel has the advantages that casings which slightly deform to a certain degree can be reshaped and repaired by the casing mandrel, the inner diameter of each recovered casing can be 95% times the original inner diameter of casing at least after the casing is processed properly, the casing mandrel is convenient to operate and is safe and reliable, and the manual operation intensity is reduced.
Description
Technical field
The utility model relates to a kind of can being used for oil, gas, the slightly deformed sleeve pipe of well is carried out the instrument that shaping is repaired, and relates in particular to a kind of awl roller shell pipe reshaper.
Background technology
Sleeve pipe bears the reservoir stress that changing and the inside and outside extruding force of fluid all the time in the down-hole, therefore produce necking down and local deformation ratio is more general.Casing deformation and necking down have a strong impact on being lowered to and changing of oil well pump and downhole tool.Along with the prolongation of oil field development time, the well of casing deformation is more and more, and therefore, handling the down-hole casing distortion will be an a large amount of workover treatment.
Summary of the invention
For overcoming the deficiencies in the prior art, the purpose of this utility model provides a kind of awl roller shell pipe reshaper, is used for oil, gas, the slightly deformed sleeve pipe of well are carried out the shaping reparation, and is easy to operate, reduces manually-operated intensity.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of awl roller shell pipe reshaper comprises mandrel, stop pin, awl roller, bearing pin, leading cone, and mandrel top is provided with the drilling rod button, and the middle part is provided with dovetail groove, and bearing pin passes the awl roller and is fixed in the dovetail groove, and bearing pin is fixed by stop pin and mandrel, and the mandrel bottom is provided with leading cone; Described awl roller is greater than three, and the awl roller evenly distributes around the mandrel axle center.
Compared with prior art, the beneficial effects of the utility model are:
Slightly deformed sleeve pipe in the certain limit is carried out the shaping reparation, can repair, handle proper more than 95% of former internal diameter that returns to this instrument, easy to operate, safe and reliable, reduce manually-operated intensity.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1-mandrel 2-stop pin 3-packing ring 4-awl roller 5-bearing pin 6-leading cone.
The specific embodiment
Below in conjunction with Figure of description the utility model is described in detail, but should be noted that enforcement of the present utility model is not limited to following embodiment.
See Fig. 1, a kind of awl roller shell pipe reshaper comprises mandrel 1, stop pin 2, awl roller 4, bearing pin 5, leading cone 6, mandrel 1 top is provided with the drilling rod button, and the middle part is provided with dovetail groove, and bearing pin 5 passes awl roller 4 and is fixed in the dovetail groove, bearing pin 5 is fixing with mandrel 1 by stop pin 2, and mandrel 1 bottom is provided with leading cone 6; Described awl roller 4 is greater than three, and awl roller 4 evenly distributes around mandrel 1 axle center.
Embodiment:
Mandrel 1 top is that the drilling rod button is in order to connect drilling tool; The middle part is a cone, and three dovetail grooves are arranged on it, and awl roller 4 is installed in the groove, and bearing pin 5 is passed by the centre, and awl roller 4 is limited, and awl roller 4 can only be rotated around the axle center, and bearing pin 5 is locked by a stop pin 2, in case upper and lower play and rotation.Mandrel 1 bottom is a leading cone 6, is convenient to the third hand tap roller and enters the deformed area.Instrument has hydrophthalmia from top to bottom.Awl roller 4 has the long conical surface and short conical surface two parts, and the long conical surface has crowded expanding and the roll-in double action to the deformed area, makes it recover latus rectum; The short conical surface has and overcomes that elastic deformation keeps and the fixing rolling effect of latus rectum size recovering deformed area behind the latus rectum.
During use, enter plastic section under the effect along with the drilling tool rotation and the pressure of the drill that applies, awl roller 4 also around bearing pin 5 rotations, squeezes bloated and roll-in to deformation place except that rotating with mandrel 1, deformation section is recovered gradually.After awl roller 4 maximum gauges passed through, deformation section did not have active force to the long conical surface of awl roller, and this moment, deformation section was to the flexible counter-force of the short conical surface.With drilling tool rotation and 4 rotations of awl roller, continue roll-in to recovering section, and under the cooling of flushing fluid, elastic reaction fades away, size remains unchanged substantially, to consolidate shaping effect.
The utility model carries out the shaping reparation to slightly deformed sleeve pipe in the certain limit, can repair with this instrument, handles proper more than 95% of former internal diameter that returns to, and is easy to operate, safe and reliable, reduces manually-operated intensity.
Claims (1)
1. an awl roller shell pipe reshaper is characterized in that, comprises mandrel, stop pin, awl roller, bearing pin, leading cone, mandrel top is provided with the drilling rod button, and the middle part is provided with dovetail groove, and bearing pin passes the awl roller and is fixed in the dovetail groove, bearing pin is fixed by stop pin and mandrel, and the mandrel bottom is provided with leading cone; Described awl roller is greater than three, and the awl roller evenly distributes around the mandrel axle center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220709001 CN203097787U (en) | 2012-12-20 | 2012-12-20 | Casing mandrel with conical rollers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220709001 CN203097787U (en) | 2012-12-20 | 2012-12-20 | Casing mandrel with conical rollers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203097787U true CN203097787U (en) | 2013-07-31 |
Family
ID=48849196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220709001 Expired - Fee Related CN203097787U (en) | 2012-12-20 | 2012-12-20 | Casing mandrel with conical rollers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203097787U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113042573A (en) * | 2021-03-12 | 2021-06-29 | 江苏沃德智能装备有限公司 | Mold for forming conical roller and forming equipment thereof |
-
2012
- 2012-12-20 CN CN 201220709001 patent/CN203097787U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113042573A (en) * | 2021-03-12 | 2021-06-29 | 江苏沃德智能装备有限公司 | Mold for forming conical roller and forming equipment thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202284453U (en) | Hydraulic expansion casing centralizing nipple | |
| CN102418478B (en) | Operation method of hollow guider by using multilateral well windowing sidetrack drilling | |
| CN203175447U (en) | Expansion pipe twin-stage expansion device | |
| CN201092836Y (en) | Reducing pipe expander | |
| CN204060518U (en) | A kind of Novel down-the-hole drill | |
| CN203097787U (en) | Casing mandrel with conical rollers | |
| CN204419096U (en) | A kind of tubing fish compound junk mill | |
| CN204457548U (en) | A kind of spiral expansion bellows tube expander | |
| CN107461177B (en) | Pressure-controlled screen pipe device | |
| CN2793292Y (en) | Multi-stage and composite drilling bit of drilling rig | |
| CN202897444U (en) | Rubber belt conveyor roller convenient to replace | |
| CN104632115A (en) | Composite milling shoe for tubular fish | |
| CN104669193B (en) | A kind of push-and-pull instrument | |
| CN105221075A (en) | Major diameter mechanical and hydraulic linkage formula enlarging while drilling device | |
| CN204591169U (en) | A kind of deformable rolling wheel centralizer | |
| CN201068760Y (en) | Oilfield down-hole salvager | |
| CN202810740U (en) | Eccentric roller shaper | |
| CN2844407Y (en) | Fluid pressure type down-hole deformed casing obturator | |
| CN204371261U (en) | Clamping mechanism of large-diameter restrictor | |
| CN208473737U (en) | Water tap for well repair | |
| CN202673207U (en) | Sectioned sand-flushing tool | |
| CN203925403U (en) | Downhole drill expandable sleeve is swollen seal apparatus | |
| CN202012319U (en) | Fishing and expanding integrated expansion pipe patching tool | |
| CN205172462U (en) | Fluid pressure type rigidity sleeve pipe centralizer | |
| CN202810743U (en) | Oil well casing reshaper |
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: 20130731 Termination date: 20211220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |