CN2374638Y - Oil pipeline universal pilot - Google Patents
Oil pipeline universal pilot Download PDFInfo
- Publication number
- CN2374638Y CN2374638Y CN 99223937 CN99223937U CN2374638Y CN 2374638 Y CN2374638 Y CN 2374638Y CN 99223937 CN99223937 CN 99223937 CN 99223937 U CN99223937 U CN 99223937U CN 2374638 Y CN2374638 Y CN 2374638Y
- Authority
- CN
- China
- Prior art keywords
- spheroid
- oil pipe
- oil
- lower contact
- utility
- 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
Abstract
The utility model relates to an oil pipe universal pilot used in oil wells, particularly directional wells and horizontal wells. The utility model is composed of a coupling hoop 1, a guide sphere 2, a sphere gland 6, a lower joint 7, rubber rings 3, 4 and a stop pin 5. The utility model has the advantages of novel design, simple structure and reliable operation. The utility model can meet the requirement of the bending, complicated and variable working condition in a well bore of an oil well in order to make an oil pipe post rotate and turn at will during regular production and lifting and descending operation. The optimal operating state of an oil pipe and a casing pipe is established, and the service lives of the oil pipe and the casing pipe are prolonged.
Description
The utility model relates to a kind of particularly downhole tool of directional well, horizontal well of oil well that is used for: the universal guider of oil pipe.
The real usually all kinds of wells that bore in oil field mostly are straight well greatly, and along with the development of oil field drilling, development technique, recently year, the inclined shaft that clump formula directional well, horizontal well, multihole well, window sidetracking well etc. have crooked well bore has obtained application more and more widely.Even straight well also all has certain hole angle, the hole angle that has even bigger.The axis of directional well well is the variation of existing hole angle then, and the variation of drift azimuth is arranged again.Under above-mentioned hole condition, oil pipe in the lower going-into-well also must cause bending, bigger in flex point and knee to the infringement of oil pipe, the load that bears when rountrip increases, oil pipe produces serious eccentric wear to sleeve pipe, not only reduces the application life of oil, sleeve pipe, also can cause the card that comes off of tubing string, increase workover treatment work amount, influence the oil well ordinary production.
The universal guider of oil pipe that the purpose of this utility model is to provide a kind of can make that tubing string tilts at well bore, work in the crooked oil well and can rotate to any direction, turn arbitrarily during rountrip, be beneficial to set up the optimum Working of oil, sleeve pipe, prolong the application life of oil, sleeve pipe.
The utility model is to realize like this.This device is made up of box cupling, guiding spheroid, spheroid gland, lower contact, O-ring seal and stopping screw, its structure, assembling feature are as follows: guiding spheroid upper end places in the box cupling and with screw thread and is connected, spheroid position, lower end places the spheroid gland to be connected with lower contact in the sphere cavity of back formation, between spheroid gland and the lower contact for being threaded, and in the lateral pins screw, be screwed into the retaining pin, O-ring seal is housed respectively in the seal groove in spheroid gland and the lower contact.The universal guider of this kind oil pipe is connected to the diverse location of tubing string according to the pit shaft bending status, set up a plurality of moving fulcrums, make tubing string form hinge and connect, can do relative rotation with angle along any direction, upper and lower body can also the axial bending certain angle simultaneously.Like this, tubing string can adapt to the variation of pit shaft axis, set up the optimal adaptation state of oil, sleeve pipe, make tubing string be in the middle position all the time, in sleeve pipe, realize multiple effects such as tuningout, guiding, turning, anticreep, antitorque, anti-eccentric wear randomly, thereby improve oil pipe application life and underground work quality, avoid or alleviate the oil pipe card phenomenon that comes off.
The utility model modern design, simple in structure, reliable operation, utilize it can satisfy well wellbore bending, operating mode complicated and changeable, make tubing string when ordinary production and rountrip, can rotate arbitrarily, turn, set up the optimum Working of oil, sleeve pipe, prolong the application life of oil, sleeve pipe, be suitable for and apply.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing enforcement of the present utility model is illustrated.
As shown in the figure, the utility model is made up of box cupling 1, guiding spheroid 2, spheroid gland 6, lower contact 7 and O-ring seal 3,4, retaining pin 5.Wherein, guiding spheroid 2 tops are the cylinder of upper end band tubing thread, and the bottom is a spheroid, and the middle part is one section neck.Spheroid gland 6 is a cylinder, and its top inner headed face is made the arc sphere and is provided with seal groove, and the bottom is drilled with a lateral pins screw, and inner headed face is provided with the screw thread that matches with lower contact.Spherical concave surface is made in lower contact 7 upper ends, and the top periphery is provided with seal groove and screw thread, and is drilled with a lateral pins screw, and the middle part is provided with shoulder, and the bottom periphery is provided with tubing thread.
Claims (4)
1, the universal guider of a kind of oil pipe, by box cupling (1), guiding spheroid (2), spheroid gland (6), lower contact (7) and O-ring seal (3), (4), retaining pin (5) is formed, it is characterized in that: guiding spheroid (2) upper end places in the box cupling (1) and with screw thread and is connected, spheroid position, lower end places spheroid gland (6) to be connected with lower contact (7) in the sphere cavity of back formation, between spheroid gland (6) and the lower contact (7) for being threaded, and in the lateral pins screw, be screwed into retaining pin (5), in the seal groove in spheroid gland (6) and the lower contact (7) O-ring seal (3) is housed respectively, (4).
2, the universal guider of oil pipe according to claim 1 is characterized in that, guiding spheroid (2) top is the cylinder of upper end band tubing thread, and the bottom is a spheroid, and the middle part is one section neck.
3, the universal guider of oil pipe according to claim 1, it is characterized in that spheroid gland (6) is a cylinder, its top inner headed face is made the arc sphere and is provided with seal groove, the bottom is drilled with a lateral pins screw, and inner headed face is provided with the screw thread that matches with lower contact.
4, the universal guider of oil pipe according to claim 1 is characterized in that, spherical concave surface is made in lower contact (7) upper end, the top periphery is provided with seal groove and screw thread, and be drilled with a lateral pins screw, and the middle part is provided with shoulder, and the bottom periphery is provided with tubing thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99223937 CN2374638Y (en) | 1999-05-25 | 1999-05-25 | Oil pipeline universal pilot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99223937 CN2374638Y (en) | 1999-05-25 | 1999-05-25 | Oil pipeline universal pilot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2374638Y true CN2374638Y (en) | 2000-04-19 |
Family
ID=34014078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99223937 Expired - Fee Related CN2374638Y (en) | 1999-05-25 | 1999-05-25 | Oil pipeline universal pilot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2374638Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944940B (en) * | 2006-10-23 | 2011-06-08 | 杜文刚 | Hollow guide device for oil pumping rod |
| WO2013075228A1 (en) * | 2011-11-25 | 2013-05-30 | Klimack Holdings Inc. | Rotatable and bendable casing connection |
| CN103643901A (en) * | 2013-12-03 | 2014-03-19 | 中国石油天然气股份有限公司 | Directional joint for well repairing and bushing removing in oil field |
| CN110344804A (en) * | 2019-06-26 | 2019-10-18 | 中国石油大学(北京) | Directional Well cylinder simulator and its experimental method |
-
1999
- 1999-05-25 CN CN 99223937 patent/CN2374638Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944940B (en) * | 2006-10-23 | 2011-06-08 | 杜文刚 | Hollow guide device for oil pumping rod |
| WO2013075228A1 (en) * | 2011-11-25 | 2013-05-30 | Klimack Holdings Inc. | Rotatable and bendable casing connection |
| CN103643901A (en) * | 2013-12-03 | 2014-03-19 | 中国石油天然气股份有限公司 | Directional joint for well repairing and bushing removing in oil field |
| CN103643901B (en) * | 2013-12-03 | 2016-12-07 | 中国石油天然气股份有限公司 | Oil well takes applies mechanically steering joint |
| CN110344804A (en) * | 2019-06-26 | 2019-10-18 | 中国石油大学(北京) | Directional Well cylinder simulator and its experimental method |
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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 |