CN201883937U - Sand-preventive and deviation-preventive screw drilling rig - Google Patents
Sand-preventive and deviation-preventive screw drilling rig Download PDFInfo
- Publication number
- CN201883937U CN201883937U CN2010206121420U CN201020612142U CN201883937U CN 201883937 U CN201883937 U CN 201883937U CN 2010206121420 U CN2010206121420 U CN 2010206121420U CN 201020612142 U CN201020612142 U CN 201020612142U CN 201883937 U CN201883937 U CN 201883937U
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- sand
- drilling rig
- deviation
- screw drilling
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Abstract
The utility model provides a sand-preventive and deviation-preventive screw drilling rig for the field of drilling equipment. The sand-preventive and deviation-preventive screw drilling rig is mainly characterized in that a sand prevention cover is arranged on the periphery of a bypass valve, a check valve is disposed at the tail end of a hollow transmission shaft, and a centralizer is arranged on a universal joint shell connected with the transmission shaft. The sand-preventive and deviation-preventive screw drilling rig solves the problems of easy sand blockage and eccentric wear of a screw drilling rig, improves protection performance, prolongs the service life, enhances operating efficiency, and reduces production cost.
Description
Technical field
The utility model belongs to the drilling equipment field, relates to drilling well, well workover helicoid hydraulic motor, is specifically related to the anti-inclined to one side helicoid hydraulic motor of a kind of sand control.
Background technology
Helicoid hydraulic motor be a kind of be power with the drilling fluid, can transfer fluid pressure to the positive displacement mud motor of mechanical energy.The slurry flows that pumps when slush pump enters screw motor through bypass valve, import and export at screw motor forms certain pressure differential, promote the axis rotation of rotor, and rotating speed and moment of torsion are passed to drill bit by universal joint and drive shaft, thereby realize drillng operation around stator.At present the problem that exists is: 1. sand grains enters cooperation joint with the drilling tool bottom from the top bypass valve easily and backflows and enter the drilling tool middle part, causes card to block up phenomenon, damage motor stator and rotor; 2. in drilling tool runs up process, eccentric easily, the eccentric wear phenomenon takes place, influence construction quality, damage drilling tool, increased cost of production.
The utility model content
The inventor according to user's reflection, updates in the activity in production of being engaged in drilling well, well workover drilling tool for many years, purpose is to provide a kind of sand control to prevent inclined to one side helicoid hydraulic motor, can the sand control card, can also prevent eccentric wear simultaneously, reduce cost thereby reach, improve the effect of operating efficiency.
The technical scheme that the utility model is taked is the anti-inclined to one side helicoid hydraulic motor of a kind of sand control of design, its structure comprises: bypass valve, screw motor, universal joint, Hollow Transmission Shafts, bit adapter is provided with sand cap in the periphery of bypass valve, end in Hollow Transmission Shafts is provided with ball-and-seat, on the cardan joint housing that connects power transmission shaft centralizer body is set.
The utility model adopts technique scheme that existing helicoid hydraulic motor is improved, set sand cap, can prevent that sand grains from entering screw motor with mud through the top bypass valve, set ball-and-seat can prevent that sand grains from backflowing from the drilling tool bottom and enter in the drilling tool, better solved the problem that drilling tool operation generation sand card damages drilling tool; Set centralizer body can solve sleeve pipe eccentric wear phenomenon along with the internal diameter of drive-shaft tunnel conversion external diameter and can be eccentric freely in the drilling tool operation, after drilling tool is set upright, can not occur being blocked in the well, and operation is steady, has improved bit speed.In a word, improve the barrier propterty of helicoid hydraulic motor, significantly reduced drilling tool obstruction and wearing and tearing, prolonged the application life of helicoid hydraulic motor, improved operating efficiency, reduced operating cost, had substantial advantage.
Description of drawings:
Fig. 1 represents the general structure schematic diagram of the anti-inclined to one side helicoid hydraulic motor of a kind of sand control of the utility model.
The specific embodiment
In conjunction with the accompanying drawings and embodiments, further specify concrete structure of the present utility model and operating principle, its feature and advantage are clearer.
Embodiment of the present utility model, referring to Fig. 1, its structure comprises: by-pass valve assembly 1, screw motor assembly 3, universal joint assembly 4, Hollow Transmission Shafts assembly 6, drill bit cooperates joint 8, mud import periphery at bypass valve 1 is connected with sand cap 2, sand cap 2 adopts lays slit 2.1 on case, be advisable with 0.18mm, and the sand grains foreign material are intercepted, be difficult to enter drilling tool inside through top bypass valve 1, in the cooperation joint 8 of Hollow Transmission Shafts 6 ends, be that shell is provided with automatic control ball-and-seat 7 spools to cooperate joint 8, in the drilling tool operation also, ball-and-seat 7 is opened automatically, after the termination of pumping of ground, drilling tool stops operation, and ball-and-seat 7 is closed automatically, stop because of the sand grains foreign material that backflow after stopping operation enter drilling tool inside, it is stifled to guarantee that from the upper and lower drilling tool is avoided the sand grains card; In universal joint 4 shells that connect power transmission shaft, centralizer body 5 is set, set centralizer body 5 adopts existing oil pumping machine oil pumping bar centralizer, utilize centralizer body 5 in the drilling tool operation, can be along with the internal diameter of sleeve pipe reducing freely, thereby keep the steady operation of drilling tool, guarantee operation quality and progress, avoid the eccentric wear phenomenon to take place, ensure that drilling tool is not fragile, reduce maintenance capacity and cost.
Claims (2)
1. the anti-inclined to one side helicoid hydraulic motor of sand control comprises bypass valve, screw motor, universal joint, Hollow Transmission Shafts, bit adapter, it is characterized in that sand cap being set, ball-and-seat is set, on the cardan joint housing that connects power transmission shaft, centralizer body is set at the end of Hollow Transmission Shafts in the periphery of bypass valve.
2. sand control as claimed in claim 1 is prevented inclined to one side helicoid hydraulic motor, it is characterized in that described sand cap adopts to lay the slit on housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206121420U CN201883937U (en) | 2010-11-12 | 2010-11-12 | Sand-preventive and deviation-preventive screw drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206121420U CN201883937U (en) | 2010-11-12 | 2010-11-12 | Sand-preventive and deviation-preventive screw drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201883937U true CN201883937U (en) | 2011-06-29 |
Family
ID=44181477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206121420U Expired - Fee Related CN201883937U (en) | 2010-11-12 | 2010-11-12 | Sand-preventive and deviation-preventive screw drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201883937U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216212A (en) * | 2013-03-24 | 2013-07-24 | 盐城市新永佳石油机械制造有限公司 | Sand control bypass valve of screw drill |
| CN103410436A (en) * | 2013-08-23 | 2013-11-27 | 中煤科工集团重庆研究院 | Blowout-preventing anti-backflow transmission shaft assembly for down-hole motor |
| CN106050642A (en) * | 2016-08-14 | 2016-10-26 | 山西风雷钻具有限公司 | Liquid-operated screw pump |
| CN110374494A (en) * | 2018-04-13 | 2019-10-25 | 中国石油化工股份有限公司 | A kind of helicoid hydraulic motor |
| CN112360389A (en) * | 2020-11-10 | 2021-02-12 | 江苏油田矿业开发有限公司 | Small workover operation method for casing leakage plugging |
-
2010
- 2010-11-12 CN CN2010206121420U patent/CN201883937U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216212A (en) * | 2013-03-24 | 2013-07-24 | 盐城市新永佳石油机械制造有限公司 | Sand control bypass valve of screw drill |
| CN103410436A (en) * | 2013-08-23 | 2013-11-27 | 中煤科工集团重庆研究院 | Blowout-preventing anti-backflow transmission shaft assembly for down-hole motor |
| CN103410436B (en) * | 2013-08-23 | 2015-06-17 | 中煤科工集团重庆研究院有限公司 | Blowout-preventing anti-backflow transmission shaft assembly for down-hole motor |
| CN106050642A (en) * | 2016-08-14 | 2016-10-26 | 山西风雷钻具有限公司 | Liquid-operated screw pump |
| CN106050642B (en) * | 2016-08-14 | 2019-06-25 | 山西风雷钻具有限公司 | Surge screw pump |
| CN110374494A (en) * | 2018-04-13 | 2019-10-25 | 中国石油化工股份有限公司 | A kind of helicoid hydraulic motor |
| CN110374494B (en) * | 2018-04-13 | 2021-09-10 | 中国石油化工股份有限公司 | Screw drilling tool |
| CN112360389A (en) * | 2020-11-10 | 2021-02-12 | 江苏油田矿业开发有限公司 | Small workover operation method for casing leakage plugging |
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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: 20110629 Termination date: 20141112 |
|
| EXPY | Termination of patent right or utility model |