CN206608115U - A kind of tapered stabilizer for oil drilling - Google Patents
A kind of tapered stabilizer for oil drilling Download PDFInfo
- Publication number
- CN206608115U CN206608115U CN201720370897.6U CN201720370897U CN206608115U CN 206608115 U CN206608115 U CN 206608115U CN 201720370897 U CN201720370897 U CN 201720370897U CN 206608115 U CN206608115 U CN 206608115U
- Authority
- CN
- China
- Prior art keywords
- wiper block
- central tube
- positive cover
- supporting positive
- lower contact
- 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
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model belongs to oilfield wellbore tools technical field, more particularly to a kind of tapered stabilizer for oil drilling, including top connection, lower contact, central tube, wiper block and supporting positive cover, described top connection and lower contact are threadedly attached in the upper and lower ends of supporting positive cover respectively, so as to constitute the shell of tapered stabilizer, described central tube is slidably mounted in described shell, described wiper block has four, wiper block is arranged in the mounting hole on supporting positive cover, the side of described central tube position corresponding with each wiper block is each provided with one group of continuous inclined-plane for being used to drive wiper block to move radially, central tube to direction where lower contact move when, wiper block is moved to the direction away from central tube, it is provided between the upper and lower ends and supporting positive cover of wiper block for making the little spring of righting block reset, the structure of existing tapered stabilizer is optimized the utility model, structure is simpler, performance is more stablized.
Description
Technical field
The utility model belongs to oilfield wellbore tools technical field, more particularly to a kind of reducing for oil drilling
Stabilizer.
Background technology
At present, in Process of Oil Well Drilling, conventional drilling tool is influenceed by formation condition, wellbore construction technique, difficult
According to predetermined wellbore trace progress, generally to carry out increasing hole angle, hold angle, drop by the way of the diameter of downhole stabilizer is changed
Tiltedly.However, the diameter of existing stabilizer is changeless mostly, this is accomplished by frequently pulling out of hole, it is lower bore, increase cost
And lose time.To solve the above problems, technical staff devises a kind of variable tapered stabilizer of diameter, although achieve one
A little achievements, but due to being designed on limitation and structure complexity, cause that production difficulty is high, poor reliability is unfavorable
In popularizing.
The content of the invention
The utility model provides a kind of tapered stabilizer for oil drilling, to solve to carry in above-mentioned background technology
The problem of going out.
The technical problem that the utility model is solved is realized using following technical scheme：The utility model provides a kind of use
In the tapered stabilizer of oil drilling, including top connection, lower contact, central tube, wiper block and supporting positive cover, it is described on connect
Head and lower contact are threadedly attached in the upper and lower ends of supporting positive cover respectively, so that the shell of tapered stabilizer is constituted, it is described
Central tube is slidably mounted in described shell, and described wiper block has four, and wiper block is arranged on the installation on supporting positive cover
In hole, the side position corresponding with each wiper block of described central tube, which is each provided with one group, to be used to drive wiper block radially
Mobile continuous inclined-plane, central tube to direction where lower contact move when, the direction of wiper block to remote central tube is moved, righting
It is provided with for making the little spring of righting block reset, is set between central tube and supporting positive cover between the upper and lower ends and supporting positive cover of block
There is a big spring for preventing central tube from moving down under gravity, the outer sheath of the lower end of described central tube is equipped with only
Move back spiral shell in the retaining for being provided with and matching with the retaining external screw thread on jump ring on the inside of externally threaded jump ring, described lower contact
Line.
It is provided with described continuous inclined-plane on feather key, described wiper block and is provided with keyway, wiper block is in feather key
Slided with the continuous inclined-plane of mating reaction lower edge of keyway.Described retaining external screw thread and the thread form of retaining internal thread are right angle three
It is angular.
The beneficial effects of the utility model are：The structure of existing tapered stabilizer is optimized the utility model,
Structure is simpler, and performance is more stablized.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is jump ring and the fit structure schematic diagram of lower contact.
In figure：1- lower contacts, 2- retaining internal threads, 3- jump rings, 4- big springs, 5- central tubes, 6- wiper blocks, 7- continuous obliques
Face, 8- little springs, 9- top connections, 10- supporting positive covers.
Embodiment
The utility model is described further below in conjunction with accompanying drawing：
The present embodiment includes top connection 9, lower contact 1, central tube 5, wiper block 6 and supporting positive cover 10, the described He of top connection 9
Lower contact 1 is threadedly attached in the upper and lower ends of supporting positive cover 10 respectively, so as to constitute the shell of tapered stabilizer, it is described in
Heart pipe 5 is slidably mounted in described shell, and described wiper block 6 has four, and wiper block 6 is arranged on the peace on supporting positive cover 10
Fill in hole, the side of described central tube 5 is each provided with one group with the corresponding position of each wiper block 6 to be used to drive wiper block 6
The continuous inclined-plane 7 moved radially, central tube 5 to the place direction of lower contact 1 move when, wiper block 6 to away from central tube 5 side
To motion, the little spring 8 for resetting wiper block 6, central tube are provided between the upper and lower ends and supporting positive cover 10 of wiper block 6
It is provided with the big spring 4 for preventing central tube 5 from moving down under gravity between 5 and supporting positive cover 10, described central tube 5
The outer sheath of lower end, which is equipped with, carries the externally threaded jump ring 3 of retaining, and the inner side of described lower contact 1 is provided with and stopping on jump ring 3
Move back the retaining internal thread 2 that external screw thread matches.
Operation principle of the present utility model is：
When needing to increase the righting diameter of stabilizer, increase the hydraulic pressure of drilling fluid, that is, accelerate the circulation rate of drilling fluid, this
When, in the presence of Fluid pressure, central tube 5 is moved downward, and is no longer resetted in the presence of retaining screw thread, at the same time,
Wiper block 6, away from central tube 5, realizes reducing in the presence of continuous inclined-plane 7.
It is provided with continuous inclined-plane 7 on feather key, described wiper block 6 and is provided with keyway, wiper block 6 is in feather key and key
Slide on the continuous inclined-plane 7 of mating reaction lower edge of groove.The setting of feather key, can effectively improve sliding stability and the position of wiper block 6
Put stability.
Described retaining external screw thread and the thread form of retaining internal thread 2 are right angled triangle, compared with other thread forms, thread form
Bearing capacity for the retaining screw thread of right angled triangle is stronger, can effectively prevent from moving up again after central tube 5 is descending.
In general, the structure of existing tapered stabilizer is optimized the utility model, and structure is simpler, property
Can more it stablize.
Claims (3)
1. a kind of tapered stabilizer for oil drilling, including top connection (9), lower contact (1), central tube (5), righting
Block (6) and supporting positive cover (10), it is characterised in that：Described top connection (9) and lower contact (1) is threadedly attached in righting respectively
The upper and lower ends of (10) are covered, so as to constitute the shell of tapered stabilizer, described central tube (5) is slidably mounted on described shell
Interior, described wiper block (6) has four, and wiper block (6) is arranged in the mounting hole on supporting positive cover (10), described central tube
(5) side position corresponding with each wiper block (6) is each provided with one group of company for being used to drive wiper block (6) to move radially
Continuous inclined-plane (7), central tube (5) to direction where lower contact (1) move when, wiper block (6) is to the direction fortune away from central tube (5)
It is dynamic, the little spring (8) for resetting wiper block (6) is provided between the upper and lower ends and supporting positive cover (10) of wiper block (6), in
The big spring (4) for preventing central tube (5) from moving down under gravity, institute are provided between heart pipe (5) and supporting positive cover (10)
The outer sheath of the lower end for the central tube (5) stated, which is equipped with, carries the externally threaded jump ring of retaining (3), the inner side of described lower contact (1)
It is provided with the retaining internal thread (2) matched with the retaining external screw thread on jump ring (3).
2. a kind of tapered stabilizer for oil drilling according to claim 1, it is characterised in that：Described company
It is provided with continuous inclined-plane (7) on feather key, described wiper block (6) and is provided with keyway, wiper block (6) is in feather key and keyway
Slide on the continuous inclined-plane of mating reaction lower edge (7).
3. a kind of tapered stabilizer for oil drilling according to claim 1, it is characterised in that：Described stops
The thread form for moving back external screw thread and retaining internal thread (2) is right angled triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720370897.6U CN206608115U (en) | 2017-04-10 | 2017-04-10 | A kind of tapered stabilizer for oil drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720370897.6U CN206608115U (en) | 2017-04-10 | 2017-04-10 | A kind of tapered stabilizer for oil drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206608115U true CN206608115U (en) | 2017-11-03 |
Family
ID=60166940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720370897.6U Expired - Fee Related CN206608115U (en) | 2017-04-10 | 2017-04-10 | A kind of tapered stabilizer for oil drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206608115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403882A (en) * | 2018-12-27 | 2019-03-01 | 成都海猛石油机械有限公司 | A kind of reducing centralizer |
-
2017
- 2017-04-10 CN CN201720370897.6U patent/CN206608115U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403882A (en) * | 2018-12-27 | 2019-03-01 | 成都海猛石油机械有限公司 | A kind of reducing centralizer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201943607U (en) | Remote-control diameter-variable centralizer for well drilling | |
| CN202047748U (en) | Ultra short radius horizontal well flexible drilling tool | |
| CN104453784A (en) | Controllable soluble-ball-seat multistage fracturing sliding sleeve | |
| CN204492720U (en) | There is the geological prospecting rope drilling tool of automatic adjusting mechanism | |
| CN204851170U (en) | Oil gas well well cementation staged fracturing bowling sliding sleeve | |
| CN205638307U (en) | Tubing hanger's running tool | |
| CN201771454U (en) | Recyclable drilling rig | |
| CN206608115U (en) | A kind of tapered stabilizer for oil drilling | |
| CN204532261U (en) | A kind of controllable type solvable ball seat multistage fracturing sliding sleeve | |
| CN201567994U (en) | Variable-diameter expansion cone for equal-diameter competed well | |
| CN105525885A (en) | Rotating inserting type coring tool for extremely-loose stratum | |
| CN200949423Y (en) | Hydraulic reduced drilling tool stabilizer | |
| CN101979817B (en) | Ditrigonal centralizer | |
| CN101936143B (en) | Reclaimable drilling rig device | |
| CN214273581U (en) | Lifting drilling type large-diameter well bottom in-situ pressure maintaining coring drilling tool | |
| CN110454112B (en) | Coiled tubing tests blanking plug | |
| CN204040941U (en) | Salvage the special centralizing tool of sleeve pipe | |
| CN210033384U (en) | Underground anti-blocking oil extraction device | |
| CN110984897B (en) | Fishing spear with co-operation of inner slip and outer slip | |
| CN210798931U (en) | Mechanical type pressurization self-rotation tool | |
| CN210087255U (en) | Eccentric centralizer | |
| CN2918712Y (en) | Spherical ball type drilling tool stabilizer | |
| CN202900041U (en) | Occupied drilling tool for single-barrel multi-well | |
| CN202596697U (en) | Fracturing wellhead ball catching device | |
| CN201241620Y (en) | Rotary type fin guide head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171103 |