CN206000490U - A kind of nested type hydraulic thruster - Google Patents
A kind of nested type hydraulic thruster Download PDFInfo
- Publication number
- CN206000490U CN206000490U CN201620933894.4U CN201620933894U CN206000490U CN 206000490 U CN206000490 U CN 206000490U CN 201620933894 U CN201620933894 U CN 201620933894U CN 206000490 U CN206000490 U CN 206000490U
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- waterpower
- axle
- outer tube
- hydraulic thruster
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Abstract
The utility model discloses a kind of nested type hydraulic thruster it is characterised in that：Including outer tube, it is provided with the waterpower set telescoping mechanism that at least one-level is stretched in the lower end of outer tube, described waterpower set mechanism includes waterpower axle and waterpower set, it is placed in outer tube in described waterpower sealing, described waterpower set is fixedly connected with the lower end of outer tube, it is connected by the sliding of axial slip mechanism between described waterpower axle and waterpower set, described waterpower puts and is additionally provided with the locating part limiting waterpower axle stroke.Waterpower axle at different levels of the present utility model is due to mutually nested, the trip segment of its waterpower axle at different levels also overlaps each other, this considerably reduce the overall length of hydraulic thruster, reduce the manufacturing cost of hydraulic thruster, and reduce the probability of waterpower axle flexing inefficacy, and achieve flexible connection between drill collar and drill bit, improve the drilling efficiency of drill bit.
Description
Technical field
This utility model is related to oil, natural gas extraction drilling tool technical field, more particularly, to a kind of nested type waterpower
Prelum.
Background technology
At present in oil drilling, the pressure of the drill that drill bit needs is to be provided by the drill collar gravity on drill bit top, this tradition
Rigid pressurized mode there are many deficiencies, for example send that brill is uneven, the bending of bouncing of drilling tool, drilling tool, false the pressure of the drill etc., drastically influence machine
The life-span of tool drilling speed, drill bit and drilling tool.In addition the harder rock stratum of formation condition, such as cream rock, fine and close mud are met in horizontal well
Rock or have projection trap when, the rotation of drill bit can produce the altofrequency vibration of axial direction or radial direction, due to drilling tool and drill bit
It is to be rigidly connected, whole BHA will produce vibration with the jarring of drill bit in drilling process, the impact being formed
Active force is assigned and is added on drill bit, produces bouncing of drilling tool, and the serious drill bit impact that even results in is damaged.Produce powerful answering in drilling tool simultaneously
Reeb, so that drilling tool fatigability aggravation, easily causes the generation of the down-hole accidents such as drilling tool fracture, the stuck, cave-in of drill bit, sternly
Hook, faucet and wellhead equipment etc. is also affected during weight.Therefore, when creeping in the hard stratum of geological conditions, it is forced
Using low the pressure of the drill and slow-speed of revolution drilling, this situation reduces drilling well timeliness, increased drilling cost.
Utility model content
Technical problem to be solved in the utility model is to provide one kind embedding for the deficiency that above-mentioned prior art exists
Shell type hydraulic thruster, this hydraulic thruster, while realizing the flexible connection between drill collar and drill bit, also can subtract it significantly
The overall length of itself, reduces its manufacturing cost.
The technical scheme that this utility model is adopted is：A kind of nested type hydraulic thruster it is characterised in that：Including outer
Cylinder, is provided with, in the lower end of outer tube, the waterpower set telescoping mechanism that at least one-level is stretched, described waterpower set mechanism include waterpower axle and
Waterpower set, is placed in outer tube in described waterpower sealing, and described waterpower set is fixedly connected with the lower end of outer tube, described waterpower axle and water
Connected by the sliding of axial slip mechanism between power set, described waterpower puts and is additionally provided with the locating part limiting waterpower axle stroke.
By technique scheme, described waterpower set telescoping mechanism includes N level waterpower axle and N level waterpower set, N=1, and 2,
3 ..., one-level waterpower axle corresponds to sealing and is nested in higher level's waterpower axle with outer tube sealing socket, remaining waterpower axle at different levels, one-level
Waterpower set is installed in the lower end of outer tube, and remaining waterpower set correspondence at different levels is installed in the afterbody of higher level's waterpower axle, and waterpower axles at different levels can
Waterpower set axial slip with respect to corresponding series.
By technique scheme, described axial slip mechanism includes axial ledge spaced along waterpower axle periphery,
The inwall of waterpower set is correspondingly provided with multiple axial slides, and described axial ledge is installed in axial slide.
By technique scheme, waterpower axle and waterpower set are configured by spline.
By technique scheme, the damping hole with connecting outer tube inner chamber and bore hole annulus is provided with outer tube.
By technique scheme, at damping hole, correspondence is installed on filter screen, prevents Annular Cuttings from entering outer tube inner chamber.
By technique scheme, it is provided with right angle slip ring between described waterpower axle and outer tube, and is sealed by O-ring.
By technique scheme, it is provided with right angle slip ring between waterpower axles at different levels, and is sealed by O-ring.
By technique scheme, waterpower axle is provided with damping hole.
When cleaner for high-pressure drilling fluid flows through hydraulic thruster, produce pressure reduction, piston shaft at different levels in piston shaft upper and lower end faces at different levels
Apply the pressure of the drill to drill bit in the presence of pressure reduction axially movable.
The beneficial effects of the utility model are：Waterpower axle at different levels of the present utility model is due to mutually nested, its waterpower at different levels
The trip segment of axle also overlaps each other, and this considerably reduces the overall length of hydraulic thruster, reduces the manufacture of hydraulic thruster
Cost, and reduce the probability of waterpower axle flexing inefficacy, and achieve the flexible connection between drill collar and drill bit, improve
The drilling efficiency of drill bit.
Brief description
Fig. 1 is structure chart of the present utility model.
Fig. 2 is the structure chart of outer tube in this utility model.
Fig. 3 is the A-A view of Fig. 2.
Fig. 4 is the structure chart of waterpower axle in this utility model.
Fig. 5 is the A-A view of Fig. 4.
Fig. 6 is the structure chart of waterpower set in this utility model.
Fig. 7 is the A-A view of Fig. 6.
In figure 1, outer tube；2nd, right angle slip ring；3rd, primary axis；4th, O-ring；5th, two grades of axles；6th, three-level axle；7th, one-level axle sleeve；
8th, trip bolt；9th, damping hole；10th, two grades of axle sleeves；11st, three-level axle sleeve.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, present embodiments providing a kind of nested type hydraulic thruster, including outer tube 1, outer tube 1 front end mother's spiral shell
Stricture of vagina is used for jointed rod.Outer tube 1 rear portion is threaded connection the waterpower set telescoping mechanism that at least one-level is stretched, in outer tube 1
It is provided with the damping hole with connecting outer tube inner chamber and bore hole annulus.At this damping hole, correspondence is installed on filter screen, prevents annular space rock
Bits enter outer tube inner chamber.
When stretching for one-level, described waterpower set mechanism includes waterpower axle and waterpower set, is placed in described waterpower sealing
In outer tube, described waterpower set is fixedly connected with the lower end of outer tube, is slided by axial slip mechanism between described waterpower axle and waterpower set
Move and connect.Described axial slip mechanism includes axial ledge spaced along waterpower axle periphery, corresponds in the inwall of waterpower set
It is provided with multiple axial slides, described axial ledge is installed in axial slide, wherein, axial slip mechanism can also may be used for spline
Think other slide part, with specific reference to practical situation select.More than for two-stage flexible when, described waterpower covers telescoping mechanism bag
Include N level waterpower axle and N level waterpower set, N=2,3 ..., one-level waterpower axle is corresponded to outer tube sealing socket, remaining waterpower axle at different levels
Sealing is nested in higher level's waterpower axle, and one-level waterpower set is installed in the lower end of outer tube, and remaining waterpower set correspondence at different levels is installed in
The afterbody of level waterpower axle, waterpower axles at different levels can cover axial slip with respect to the waterpower of corresponding series, described waterpower puts and is additionally provided with
Limit the locating part of waterpower axle stroke.
The present embodiment so that prelum stretches for three-level as a example illustrates, and as shown in figs. 1-7, described waterpower covers telescoping mechanism
Cover 7, two grades of waterpower sets 10, three-level waterpower sets including 3, two grades of waterpower axles 5 of one-level waterpower axle, three-level waterpower axle 6 and one-level waterpower
11, it is threaded connection between outer tube 1 and one-level waterpower set 7, screw thread is passed through in the end of two grades of waterpower sets 10 and one-level waterpower axle 3
Connect, three-level waterpower set 11 is threaded connection with the end of two grades of waterpower axles 5, and moment of torsion is between outer tube and waterpower axle at different levels
Transmission, wherein, waterpower at different levels cover for intermediary's transmission effect；Transmitted by spline between one-level waterpower set 7 and one-level waterpower axle 3
Moment of torsion.It is threaded connection between one-level waterpower axle 3 and two grades of waterpower sets 10；Between two grades of waterpower sets 10 and two grades of waterpower axles 5
By spline come transmitting torque.By spline come transmitting torque between three-level waterpower axle 6 and three-level waterpower set 11.Every one-level waterpower
There is right angle slip ring 2 between axle and sealed by O row circle 4.Waterpower axles at different levels are provided with damping hole 9.In addition water conservancy set also plays one
The individual effect limiting waterpower axle strokes at different levels.
When drilling fluid flows through hydraulic thruster, waterpower axles at different levels apply the pressure of the drill along axial-movement to drill bit simultaneously, when one
When level waterpower axle 3 moves to stroke end, do not continued to move by the stop of one-level waterpower set 7, only two grades waterpower axles 5 and three
Level waterpower axle 6 continues motion and applies the pressure of the drill to drill bit, when two grades of waterpower axles 5 move to stroke end, is covered 10 by two grades of waterpower
Stop do not continue to move, only three-level waterpower axle 6 continue motion apply the pressure of the drill to drill bit, material is thus formed hydraulic pressurization
Three strokes of device, first stroke the pressure of the drill is 3, two grades of waterpower axles 5 of one-level waterpower axle, three-level waterpower axle 6 individually to drill bit
Apply the pressure of the drill sum, second stroke the pressure of the drill individually applies the pressure of the drill sum to drill bit for two grades of waterpower axles 5, three-level waterpower axles 6,
Third trip the pressure of the drill is the value that three-level waterpower axle 6 individually applies the pressure of the drill to drill bit.Material is thus formed three of hydraulic thruster
The pressure of the drill stroke of different sizes.
Claims (9)
1. a kind of nested type hydraulic thruster it is characterised in that：Including outer tube, it is provided with least one-level in the lower end of outer tube and stretches
Waterpower set telescoping mechanism, described waterpower set mechanism includes waterpower axle and waterpower set, is placed in outer tube in described waterpower sealing,
Described waterpower set is fixedly connected with the lower end of outer tube, is connected by the sliding of axial slip mechanism between described waterpower axle and waterpower set,
Described waterpower puts and is additionally provided with the locating part limiting waterpower axle stroke.
2. nested type hydraulic thruster according to claim 1 it is characterised in that：Described waterpower set telescoping mechanism includes N
Level waterpower axle and N level waterpower set, N=1,2,3 ..., one-level waterpower axle is corresponded to outer tube sealing socket, remaining waterpower axle at different levels
Sealing is nested in higher level's waterpower axle, and one-level waterpower set is installed in the lower end of outer tube, and remaining waterpower set correspondence at different levels is installed in
The afterbody of level waterpower axle, waterpower axles at different levels can be with respect to the waterpower set axial slip of corresponding series.
3. nested type hydraulic thruster according to claim 1 and 2 it is characterised in that：Described axial slip mechanism includes
Along the spaced axial ledge in waterpower axle periphery, it is correspondingly provided with multiple axial slides in the inwall of waterpower set, described axial direction is convex
Edge is installed in axial slide.
4. nested type hydraulic thruster according to claim 1 and 2 it is characterised in that：Waterpower axle and waterpower set are by flower
Key configures.
5. nested type hydraulic thruster according to claim 1 and 2 it is characterised in that：Outer tube is provided with outer with connection
Tube inner chamber and the damping hole of bore hole annulus.
6. nested type hydraulic thruster according to claim 5 it is characterised in that：At damping hole, correspondence is installed on filter
Net, prevents Annular Cuttings from entering outer tube inner chamber.
7. nested type hydraulic thruster according to claim 1 and 2 it is characterised in that：Between described waterpower axle and outer tube
It is provided with right angle slip ring, and sealed by O-ring.
8. nested type hydraulic thruster according to claim 2 it is characterised in that：It is provided with right angle between waterpower axles at different levels to slide
Ring, and sealed by O-ring.
9. nested type hydraulic thruster according to claim 1 and 2 it is characterised in that：Waterpower axle is provided with damping hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620933894.4U CN206000490U (en) | 2016-08-24 | 2016-08-24 | A kind of nested type hydraulic thruster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620933894.4U CN206000490U (en) | 2016-08-24 | 2016-08-24 | A kind of nested type hydraulic thruster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206000490U true CN206000490U (en) | 2017-03-08 |
Family
ID=58197109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620933894.4U Active CN206000490U (en) | 2016-08-24 | 2016-08-24 | A kind of nested type hydraulic thruster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206000490U (en) |
-
2016
- 2016-08-24 CN CN201620933894.4U patent/CN206000490U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170915 Address after: 430223 Hubei, East Lake New Technology Development Zone, Optics Valley Road, No. 77,, financial port, A2 Co-patentee after: SINOPEC OILFIELD EQUIPMENT CORPORATION Patentee after: Sinopec Research Institute of petroleum machinery and Limited by Share Ltd Address before: 430223 Hubei, East Lake New Technology Development Zone, Optics Valley Road, No. 77,, financial port, A2 Patentee before: Research Institute of SINOPEC Petroleum Engineering Machinery Co., Ltd. |
|
| TR01 | Transfer of patent right |