CN204920792U - Rock oscillator - Google Patents
Rock oscillator Download PDFInfo
- Publication number
- CN204920792U CN204920792U CN201520694109.XU CN201520694109U CN204920792U CN 204920792 U CN204920792 U CN 204920792U CN 201520694109 U CN201520694109 U CN 201520694109U CN 204920792 U CN204920792 U CN 204920792U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- oscillator
- outer tube
- adjusting sleeve
- thrust bearing
- 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.)
- Withdrawn - After Issue
Links
- 239000011435 rock Substances 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 9
- 238000005553 drilling Methods 0.000 abstract description 30
- 238000000034 method Methods 0.000 abstract description 12
- 230000033001 locomotion Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003129 oil well Substances 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 2
- 239000003345 natural gas Substances 0.000 abstract description 2
- 239000003292 glue Substances 0.000 abstract 1
- 230000035515 penetration Effects 0.000 description 6
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a rock oscillator belongs to oil, natural gas extraction drilling tool technical field. This rock oscillator includes main shaft, outer tube, footstep bearing A, footstep bearing B and restrictor ring, and the cover is equipped with the outer tube on the main shaft, and the circumferential inner wall of outer tube goes up the equipartition has interior lug, is equipped with footstep bearing A on the main shaft of interior lug one side, is equipped with the restrictor ring through adjusting sleeve A and adjusting sleeve B on the main shaft of footstep bearing A one side. The relative motion of this rock oscillator through lug in runner mouth and the shell produces and moves the valve and decide the valve effect to produce pressure pulse and realize the radial vibration, rock motion and axial vibration, can effectively improve mechanical drilling speed. The problem of can produce among the current drilling process great rub hinder, the backing pressure phenomenon, not only seriously influence the mechanical drilling speed of horizontal well, also arouse easily simultaneously and glue complicated occurence of failure in the pit such as card is solved, the well drilling of specially adapted oil well is used.
Description
Technical field
The utility model relates to one and rocks oscillator, belongs to oil, natural gas extraction drilling tool technical field.
Background technology
In drilling process, frictional resistance is the key factor affecting drilling speed.During conventional drilling, between drilling assembly and the borehole wall, be in static friction state.No matter be straight well, directional well or horizontal well, frictional resistance in drilling process between drill string and the borehole wall is all the key factor affecting drilling speed, the additional torque caused by drilling assembly and wall friction and frictional resistance can cause rate of penetration low, tool-face controls difficulty, creep into chi for single time little, abnormal serious drill string and bit wear etc.When accumulation frictional force exceedes applied the pressure of the drill, just there will be backing pressure phenomenon, force tubing string generation dextrorotation to bend or Helical Buckling.For directional well and horizontal well, high frictional resistance also can form crooked hole, thus the ability causing rig brill to reach depth capacity reduces, and even can have influence on oil well output.In horizontal well drilling process, especially drilling tool is in the larger well section of hole curvature, or can produce larger frictional resistance, backing pressure phenomenon equally crossing long horizontal sections, effectively cannot apply the pressure of the drill.The rate of penetration that frictional resistance is large, backing pressure problem not only has a strong impact on horizontal well, also easily causes the generation of the down-hole complex accident such as sticky card simultaneously.
Practice shows, utilizes domestic and international expert to have developed the hydroscillator of generation axial vibration for reducing frictional resistance.The static friction that hydroscillator makes drilling tool be subject in down-hole by pressure pulse becomes dynamic friction.By the dither of hydroscillator, change only by the pressuring method of drilling tool self gravitation.Hydroscillator, when down-hole drive drill string vibration, changes the stiction between drilling tool and the borehole wall into kinetic force of friction.
Summary of the invention
The purpose of this utility model is: provide a kind of and can realize rocking in drilling process, radial and axial vibration, the static friction in drilling process is become dynamic friction, effectively can reduce frictional resistance, and that improves that machinery creeps into rocks oscillator.
The technical solution of the utility model is:
One rocks oscillator; Comprise main shaft, outer tube, thrust bearing A, thrust bearing B and restrictor ring, it is characterized in that: main shaft is set with outer tube, the circumferential inner wall of outer tube is evenly equipped with interior projection, the main shaft of interior projection side is equipped with thrust bearing A, the main shaft of thrust bearing A side is equipped with restrictor ring by adjusting sleeve A and adjusting sleeve B, the main shaft of thrust bearing A opposite side is equipped with sealing ring A by slipper seal base A and back-up ring A; The main shaft of interior projection opposite side is equipped with adjusting sleeve C, on the main shaft of adjusting sleeve C side, symmetry shape is provided with alignment bearing, turbine rotor and turbine stator is provided with between alignment bearing, the main shaft of adjusting sleeve C opposite side is equipped with thrust bearing B, the main shaft of thrust bearing B side is equipped with sealing ring B by slipper seal base B and back-up ring B; Described interior projection and main shaft corresponding to adjusting sleeve C are respectively arranged with runner mouth.
Described outer tube circumferential outer surface interval shape is symmetrically arranged with outer projection.
Described outer tube one end port is fixed with end cap by clamping bolt, and outer tube other end port threads is provided with outer pipe connector.
Gap is provided with between described outer pipe connector and main shaft.
The main shaft of described slipper seal base B side is equipped with hold-down ring by clamping bolt and clamping sleeve.
Described main shaft one end is provided with external screw thread, and the main shaft other end is provided with internal thread.
The beneficial effects of the utility model are:
This rocks oscillator, simple and compact for structure; In drilling process, produce dynamic valve by the relative motion of projection in runner mouth and shell and determine valve effect, thus generation pressure pulse realizes radial vibration, torsional movement and axial vibration, and then effectively can improve rate of penetration.Solve in existing drilling process and can produce larger frictional resistance, backing pressure phenomenon, not only have a strong impact on the rate of penetration of horizontal well, also easily cause the problem that the down-hole complex accident such as sticky card occur simultaneously, be specially adapted to oilwell drilling and use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structure for amplifying schematic diagram at Figure 1A place;
Fig. 3 is the structure for amplifying schematic diagram at Figure 1B place;
Fig. 4 is that Figure 1A-A is to schematic cross-section.
In figure: 1, main shaft, 2, outer tube, 3, thrust bearing A, 4, thrust bearing B, 5, restrictor ring, 6, interior projection, 7, adjusting sleeve A, 8, adjusting sleeve B, 9, slipper seal base A, 10, back-up ring A, 11, sealing ring A, 12, adjusting sleeve C, 13, alignment bearing, 14, turbine rotor, 15, turbine stator, 16, thrust bearing B, 17, slipper seal base B, 18, back-up ring B, 19, sealing ring B, 20, clamping sleeve, 21, hold-down ring, 22, end cap, 23, outer pipe connector, 24, outer projection, 25, runner mouth.
Detailed description of the invention
This rocks oscillator and comprises main shaft 1, outer tube 2, thrust bearing A3, thrust bearing B4 and restrictor ring 5.Main shaft 1 is set with outer tube 2, outer tube 2 circumferential outer surface interval shape is provided with outer projection 24, and outer projection 24 is 180 degree of settings at outer tube 2 circumferential outer surface; Outer tube 2 circumferential inner wall on be evenly equipped with 3 interior projections 6, the main shaft 1 of interior projection 6 side is equipped with thrust bearing A3, the main shaft 1 of thrust bearing A3 side is equipped with restrictor ring 5 by adjusting sleeve A7 and adjusting sleeve B8, restrictor ring 5 has allowed a small amount of slurry liquid to enter thrust bearing A3 part, to play lubrication.Sealing ring A11 is equipped with the main shaft 1 of thrust bearing A3 opposite side by slipper seal base A9 and back-up ring A10, to realize sealing.
The main shaft 1 of interior projection 6 opposite side is equipped with adjusting sleeve C12, interior projection 6 and main shaft 1 corresponding to adjusting sleeve C12 are respectively arranged with 3 runner mouths 25.
On the main shaft 1 of adjusting sleeve C12 side, symmetry shape is provided with alignment bearing 13, the main shaft 1 between alignment bearing 13 is provided with turbine rotor 14 and turbine stator 15; Alignment bearing 13 is for adjusting the radial vibration between turbine rotor 14; Relative fixing between turbine rotor 14 with outer tube 2.
The main shaft 1 of adjusting sleeve C12 opposite side is equipped with thrust bearing B16, the main shaft 1 of thrust bearing B16 side is equipped with sealing ring B19 by slipper seal base B17 and back-up ring B18; The main shaft 1 of slipper seal base B19 side is equipped with hold-down ring 21 by clamping bolt and clamping sleeve 20; For the axial location of leading portion (interior projection 6 opposite side) each parts.
This main shaft 1 one end of rocking oscillator is provided with external screw thread, and main shaft 1 other end is provided with internal thread.Be used for during work being connected with drilling rod.Outer tube 2 one end port is fixed with end cap 22 by clamping bolt, and outer tube 2 other end port threads is provided with outer pipe connector 23.Gap is provided with between outer pipe connector 22 and main shaft 1.This rocks oscillator and prevents outer tube 2 axial motion, and adjusting sleeve A7 contacts with interior projection 6, and the axial force of generation is delivered to thrust bearing A3 by restrictor ring 5.Opposite side, adjusting sleeve C12 contacts, by axial force transmission to thrust bearing B16 with interior shoulder of outer tube 2.
When this rocks oscillator operation, after drilling fluid enters main shaft 1, enter turbine portion from runner mouth 24, thus drive turbine rotor 14 to rotate, due to turbine rotor 14 fixed jacket pipe 2 relatively, thus drive outer tube 2 to rotate together.Because outer tube 2 circumferential outer surface interval shape is symmetrically arranged with outer projection 24, and outer projection 24 is 180 degree of settings at outer tube 2 circumferential outer surface; In outer tube 2 rotary course, when outer projection 24 contacts with the borehole wall, other parts of outer tube 2 depart from the borehole wall; Outer tube 2 cycle rotates, and can realize the radial vibration that this rocks oscillator, simultaneously because outer projection 24 and the effect of the borehole wall also can realize the torsional movement of oscillator.In the course of work, thrust bearing A3 is used for bearing axial force; Thrust bearing B16 is used for bearing opposite side axial force.
This rocks 3 interior projections 6 corresponding 3 runner mouths 25 respectively of oscillator, and interior projection 6 width is slightly less than runner mouth 25 width.When drilling fluid drives turbine rotor 14 to rotate together with outer tube 2, between interior projection 6 and runner mouth 25, the folding of property performance period, can produce periodic pressure pulse, thus produces axial vibration, carrying out effectively to reduce frictional resistance in drilling process thus, improving mechanical separator speed.
This rocks oscillator and compares existing hydroscillator, and eliminate concussion pipe nipple and the power sub of conventional hydraulic oscillator, overall structure is more simply compact.Can realize radial vibration in drilling process, the falling of three-dimensional level of torsional movement and axial vibration wear away resistance, thus effect improves rate of penetration.And this rocks oscillator does not have traditionally to determine valve and dynamic valve valve block, but produce dynamic valve by runner mouth 25 and the relative motion of interior projection 6 and determine valve effect, thus generation pressure pulse realizes axial vibration, and reduce abrasive effect; Solve in existing drilling process and can produce larger frictional resistance, backing pressure phenomenon, not only have a strong impact on the rate of penetration of horizontal well, also easily cause the problem that the down-hole complex accident such as sticky card occur simultaneously, be specially adapted to oilwell drilling and use.
Claims (6)
1. one kind is rocked oscillator, comprise main shaft (1), outer tube (2), thrust bearing A(3), thrust bearing B(4) and restrictor ring (5), it is characterized in that: main shaft (1) is set with outer tube (2), the circumferential inner wall of outer tube (2) is evenly equipped with interior projection (6), thrust bearing A(3 is equipped with the main shaft (1) of interior projection (6) side), thrust bearing A(3) side main shaft (1) on by adjusting sleeve A(7) and adjusting sleeve B(8) restrictor ring (5) is housed, thrust bearing A(3) opposite side main shaft (1) on by slipper seal base A(9) and back-up ring A(10) sealing ring A(11 is housed), adjusting sleeve C(12 is equipped with the main shaft (1) of interior projection (6) opposite side), adjusting sleeve C(12) the upper symmetry shape of main shaft (1) of side is provided with alignment bearing (13), alignment bearing 13) between be provided with turbine rotor (14) and turbine stator (15), adjusting sleeve C(12) opposite side main shaft (1) on thrust bearing B(16 is housed), thrust bearing B(16) side main shaft (1) on by slipper seal base B(17) and back-up ring B(18) sealing ring B(19 is housed), described interior projection (6) and adjusting sleeve C(12) corresponding main shaft (1) is respectively arranged with runner mouth (25).
2. one according to claim 1 rocks oscillator; It is characterized in that: described outer tube (2) circumferential outer surface interval shape is symmetrically arranged with outer projection (24).
3. one according to claim 1 rocks oscillator; It is characterized in that: described outer tube (2) one end port is fixed with end cap (22) by clamping bolt, and outer tube (2) other end port threads is provided with outer pipe connector (23).
4. one according to claim 3 rocks oscillator; It is characterized in that: between described outer pipe connector (23) and main shaft (1), be provided with gap.
5. one according to claim 1 rocks oscillator; It is characterized in that: described slipper seal base B(17) main shaft (1) of side is equipped with hold-down ring (21) by clamping bolt and clamping sleeve (20).
6. one according to claim 1 rocks oscillator; It is characterized in that: described main shaft (1) one end is provided with external screw thread, and main shaft (1) other end is provided with internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520694109.XU CN204920792U (en) | 2015-09-09 | 2015-09-09 | Rock oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520694109.XU CN204920792U (en) | 2015-09-09 | 2015-09-09 | Rock oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204920792U true CN204920792U (en) | 2015-12-30 |
Family
ID=54969929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520694109.XU Withdrawn - After Issue CN204920792U (en) | 2015-09-09 | 2015-09-09 | Rock oscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204920792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178860A (en) * | 2015-09-09 | 2015-12-23 | 长江大学 | Torsional pendulum oscillator |
-
2015
- 2015-09-09 CN CN201520694109.XU patent/CN204920792U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178860A (en) * | 2015-09-09 | 2015-12-23 | 长江大学 | Torsional pendulum oscillator |
| CN105178860B (en) * | 2015-09-09 | 2017-05-10 | 长江大学 | Torsional pendulum oscillator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151230 Effective date of abandoning: 20170510 |
|
| AV01 | Patent right actively abandoned |