CN106609659B - Hydraulic buckling type remote control diameter variable stabilizer - Google Patents
Hydraulic buckling type remote control diameter variable stabilizer Download PDFInfo
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- CN106609659B CN106609659B CN201510704643.9A CN201510704643A CN106609659B CN 106609659 B CN106609659 B CN 106609659B CN 201510704643 A CN201510704643 A CN 201510704643A CN 106609659 B CN106609659 B CN 106609659B
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- 239000003381 stabilizer Substances 0.000 title claims abstract description 39
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 54
- 239000010727 cylinder oil Substances 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 9
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention relates to a kind of hydraulic buckling type remote control diameter variable stabilizer, including ontology and lower contact, ontology upper end and lower contact lower end are connected to drill string using screw thread；Body interior upper end is provided with mandrel and spring base, and resetting spring is provided between upper mandrel and spring base；Body interior lower end is equipped with lower mandrel, support tube, beacon, it is provided with the pressure drop piston of thrust upper bearing (metal), cam, thrust lower bearing, the dummy piston that can freely up and down move and axial restraint under tubulose outside mandrel from top to bottom, the plan-position on pressure drop piston, it is corresponding with annulus bore on the body, on the outside of cam, ontology is equipped with the cam pin assemblies for matching resultant motion in cam path.The stabilizer outer diameter size can be manipulated by the Push And Release of ground drilling pump, its main feature is that wiper block contact area is big, be suitable for the requirement of soft formation hole trajectory control, and wiper block is easily changed, small to tool body intensity effect in structure.
Description
Technical field
The present invention is the remote-control diameter-variable used in directional well, horizontal well and extended reach well drillng operation in a kind of petroleum industry
Stabilizer belongs to downhole tool field in drilling engineering.
Background technology
In directional well, horizontal well and extended reach well wellbore construction, wellbore hole deviation, it is steady often to use remote-control diameter-variable in order to control
Device is determined to replace the stabilizer of fixed outer diameter, but the remote control diameter variable stabilizer now developed has the following problems：
（1）More piston reach stabilizers, righting piston, which is replaced, to be needed to dismantle entire stabilizer, extremely inconvenient；
（2）Too small for soft formation righting area in structure, easily embedded stratum increases drilling well frictional resistance.
Chinese patent " drilling remote control diameter-changing centering guide " (201020616387.0) uses the supporting block of playground shape, support
Block is connected with tool interior using T-slot, once supporting block abrasion, needs replacing, then needs entirely to dismantle entire stabilizer, is worked
Amount is big, and extremely inconvenient, trepanning is big on the tool body of supporting block installation place, weakens to bulk strength apparent.
Invention content
In order to overcome the defect present in above-mentioned tapered stabilizer, the present invention provides a kind of hydraulic buckling type remote-control diameter-variables
Stabilizer, this stabilizer righting area is big, is suitable for soft formation lower curved section guide digging, and the wiper block of abrasion is replaced
It is easy, it is small to tool body intensity effect in structure.
The technical scheme is that：
Hydraulic buckling type remote control diameter variable stabilizer, including ontology 1, the pushing mechanism being arranged in ontology 1, support tube 22,
Beacon 23 and the righting mechanism being arranged outside ontology 1；
The pushing mechanism includes：The tubing string that upper mandrel 2 leads in being connected and composed with lower mandrel 15, wherein 2 top of upper mandrel
It is equipped with the convex edge for the sealing cooperation that slides axially with 1 inner wall of ontology, the downward annular space intracavitary in 2 top convex edge of upper mandrel is from top to bottom
Successively be equipped with resetting spring 3, piston body 5 and upper quiet piston 8, under quiet piston 14,3 lower end of resetting spring by with spring base 4
Ontology 1 is relatively fixed connection, and piston body 5 is axially spaced outside to seal the upper piston body of cooperation equipped with sliding axially with ontology 1
36 and lower piston body 38, upper quiet piston 8, under the interval of quiet piston 14 be fixed on 1 inner wall of ontology and be located at upper piston body 36 and lower work
38 lower part of cock body, upper quiet piston 8, under quiet piston 14 slide axially with piston body 5 sealing cooperation, upper quiet piston 8 and upper work
Cock body 36 and lower piston body 38 respectively constitute upper cylinder oil pocket 31 and middle oil pocket 29, and the quiet piston 14 under of lower piston body 38 is constituted
Lower oil cylinder oil pocket 28, resetting spring 3 are located in the upper oil cavitie 32 that upper piston body 36 is formed with upper mandrel 2,3 both ends of resetting spring point
It is not acted on upper piston body 36 and 2 convex edge of upper mandrel；In annular chamber between lower mandrel 15 and support tube 22 from top to bottom successively
Equipped with cam 17, dummy piston 20, pressure drop piston 21, wherein cam 17 is matched with the limit of cam pin assemblies 18 being located on ontology 1
It closes, dummy piston 20 and pressure drop piston 21 are spaced apart and slide axially with ontology 1 and lower mandrel 15 and seal cooperation, balance
The quiet piston 14 under of piston 20 constitutes lower oil cavitie 26；Beacon 23 is fixed on 1 lower end of ontology by support tube 22, beacon 23 with
Lower mandrel 15 constitutes axial mating.
The righting mechanism includes：It is equipped with from top to bottom with the fixed upper cylinder barrel 6 of ontology 1 and lower cylinder barrel 12 outside ontology 1
, upper piston 7, lower piston 11 are respectively equipped in upper cylinder barrel 6 and lower cylinder barrel 12, are evenly equipped between upper piston 7, lower piston 11 multiple
Wiper block 9, wiper block 9 are slidably matched with upper piston 7,11 conical surface of lower piston, are limited and are connected by clamp spring 10 between wiper block 9.
Upper oil cavitie 32, middle oil pocket 29 and lower oil cavitie 26 are mutually communicated, upper cylinder oil pocket 31 and 7 groups of upper cylinder barrel 6 and upper piston
At plunger shaft, the plunger shaft that forms of lower oil cylinder oil pocket 28 and lower cylinder barrel 12 and lower piston 11 pass through oiling on ontology 1 respectively
Hole 30 and the perforation of lower oilhole 27, ontology 1 are equipped with the annulus bore of the chamber between dummy piston 20 and pressure drop piston 21
25。
Said program further comprises：
The clamp spring 10 is connected by 9 circumferential recess 41 of wiper block with the limit of wiper block 9, and convex block is equipped on wiper block 9
35, inside there is stepped hole 40, there is the anti-drop screw 39 on ontology 1 in stepped hole.
Cam 17 is connect by upper bearing (metal) 16 and lower bearing 19 with lower mandrel 15.
Compared with prior art, the present invention has the advantages that：Wiper block on the outside of stabilizer can be in upper piston
It with outside bulging under the action of lower piston, can be radially retracted again under the action of wire circlip, realize the function of stabilizer reducing,
Wiper block is fully mounted at outer body in scheme, replaces and is easy, and single wiper block righting area is big, and it is oblique to be suitable for soft formation
Well section guide digging influences bulk strength small without big trepanning in structure upper body.
Description of the drawings
Fig. 1 is the structure and off working state sectional view of a kind of hydraulic buckling type remote control diameter variable stabilizer of the present invention.
Fig. 2 is that a kind of hydraulic buckling type remote control diameter variable stabilizer of the present invention is flushing cross-sectional operational views.
Fig. 3 is that a kind of hydraulic buckling type remote control diameter variable stabilizer of the present invention is stretching out cross-sectional operational views.
Fig. 4 is E-E schematic cross-sections in Fig. 1.
Fig. 5 is F-F schematic cross-sections in Fig. 2.
Fig. 6 is G-G schematic cross-sections in Fig. 3.
Fig. 7 is wiper block structural schematic diagram.
Fig. 8 is upper piston structural schematic diagram.
Fig. 9 is piston body structural schematic diagram.
Description of symbols in figure：
1-ontology, 2-upper mandrels, 3-resetting springs, 4-spring bases, 5-piston bodies, 6-upper cylinder barrels, 7-upper work
It fills in, 8-upper quiet pistons, 9-wiper blocks, 10-clamp springs, 11-lower pistons, 12-lower cylinder barrels, 13-piston pins, quiet work under 14-
Plug, 15-lower mandrels, 16-upper bearing (metal)s, 17-cams, 18-cam pin assemblies, 19-lower bearings, 20-dummy pistons, 21-
Pressure drop piston, 22-support tubes, 23-beacons, 24-lower contacts, 25-annulus bores, 26-lower oil cavities, 27-lower oilholes,
28-lower oil cylinder oil pockets, 29-middle oil pockets, 30-upper oil holes, 31-upper cylinder oil pockets, 32-upper oil cavities, 33-outer conical surfaces,
34-internal conical surfaces, 35-convex blocks, 36-upper piston bodies, 37-oil-through-holes, 38-lower piston bodies, 39-anti-drop screws, 40-
Stepped hole, 41-grooves.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Embodiment 1
As shown in Figure 1, the hydraulic buckling type remote control diameter variable stabilizer includes ontology 1 and lower contact 24,1 upper end of ontology is under
24 lower end of connector is connected to drill string using screw thread；1 inner upper end of ontology is provided with mandrel 2 and spring base 4, in upper mandrel 2 and bullet
Compressible resetting spring 3 is provided between spring abutment 4；1 interior lower end of ontology is equipped with lower mandrel 15, support tube 22, beacon 23, tubulose
It is provided with thrust upper bearing (metal) 16, cam 17, thrust lower bearing 19, the balance that can freely up and down move from top to bottom outside lower mandrel 15
Piston 20, pressure drop piston 21 have annulus bore 25 on pressure drop piston 21 on the ontology 1 of plan-position, corresponding in 17 outside of cam
Ontology 1 is equipped with the cam pin assemblies 18 for matching resultant motion in 17 slot of cam；The upper mandrel 2 and lower mandrel 15 are upper and lower two
Root is threadedly coupled, intermediate hollow, and inside is fluid passage.
1 outer middle side part of ontology is equipped with upper cylinder barrel 6, upper piston 7, wiper block 9, the lower piston being connected with ontology 1 from top to bottom
11 and with ontology 1 be connected lower cylinder barrel 12, upper piston 7 and lower piston 11 are just the same in structure, there is outer conical surface 33 thereon
（As shown in Figure 8）, fluted 41 on wiper block 9, it is equipped with wire circlip 10 on it, there is convex block 35 on wiper block 9, it is interior
There is stepped hole 40, there is the anti-drop screw 39 on ontology 1,9 upper and lower ends of wiper block to have internal conical surface 34 in hole（Such as Fig. 7
It is shown）.
As shown in Figure 1, being equipped with piston body 5 outside 2 hypomere of upper mandrel and relying on 13 axial restraint of piston pin on ontology 1
Upper quiet piston 8, under quiet piston 14, upper quiet piston 8 and under quiet piston 14 have sealing function with ontology 1 on the outside, it is same in inside
Piston body 5 has sealing function, upper quiet piston 8 under on quiet piston 14 plane correspond on ontology 1 have respectively be same as above 6 He of cylinder barrel
The upper oil hole 30 and lower oilhole 27 that lower cylinder barrel 12 is connected.Be provided with upper piston body 36 on piston body 5, lower piston body 38 and
The oil-through-hole 37 of plane on close to lower piston body 38（As shown in Figure 9）；Upper quiet piston 8 forms upper cylinder oil between being same as above piston body 36
Chamber, under lower oil cylinder oil pocket 28 is formed between quiet piston 14 and lower piston body 38, dummy piston 20 forms lower oil under between quiet piston 14
Chamber 26, upper quiet piston 8 is the same as oil pocket 29 in being formed between lower piston body 38,2 top piston of upper mandrel（Also referred to as top convex edge）Ibid live
Upper oil cavitie 32 is formed between cock body 36, upper oil cavitie 32, middle oil pocket 29 and lower oil cavitie 26 penetrate through in structure, upper cylinder oil pocket 31, under
Oil cylinder oil pocket 28 is respectively independent.
As shown in Figure 1, there is the circumferentially equally distributed wiper block of multi-disc on the controllable diameter changeable stabilizer tapered stabilizer ontology 1
9, due to the effect of circular conical surface, wiper block 9 by upper piston 7 and lower piston 11 generate be axially opposite movement and be pushed outwardly, surely
Determine device outer diameter to become larger；After upper piston 7 and lower piston 11 generate axial back movement, the wiper block 9 being pushed outwardly is by wire circlip
10 retract, and stabilizer outer diameter becomes smaller.The reducing control of controllable diameter changeable stabilizer is that control upper piston 7 and lower piston 11 generate
Be axially moved distance, move toward one another distance it is bigger, stabilizer outer diameter is bigger.
Hydraulic buckling type remote control diameter variable stabilizer reducing process is：
It is to be pumped in drill string inside tapered stabilizer after turn on pump, the annulus bore 25 of tapered stabilizer lower part is by annular space pressure
The strong lower oil cavitie 26 for being introduced into tool, the effect of dummy piston 21 is that the pressure of annular space is introduced into lower oil cavitie 26；Upper oil cavitie
32, middle oil pocket 29 and lower oil cavitie 26 penetrate through, so 32 pressure of upper oil cavitie is annular space pressure；The brill of tapered stabilizer lower part when drilling
There is pressure and consume in tool and drill bit, drill string internal pressure is powerful in annular space pressure, and plane will be pretended by drill string internal pressure on 2 piston of upper mandrel
With lower plane will be by annular space pressure action, therefore mandrel 2 is made to generate downward power downlink and compression reseting spring 3, together
When the lower mandrel 7 that the is fixed together and also downlink of piston body 5, upper oil cavitie 32 reduces during downlink, and middle oil pocket 29 becomes larger, on
Oil pocket 29 and lower oil cavitie 26 during 32 fluid of oil pocket will flow into, the volume change of lower oil cavitie 26 then by dummy piston 20 it is axial from
It is compensated by moving；Upper cylinder oil pocket 31 and lower 28 volume of oil cylinder oil pocket are reduced during downlink, and fluid is then respectively by oiling
Hole 30 and lower oilhole 27 enter cylinder barrel 6 and lower cylinder barrel 12 to push upper piston 7 and lower piston 11 to be axially opposite movement,
Due to the effect of circular conical surface, wiper block 9 is pushed outwardly, and stabilizer outer diameter becomes larger.
After termination of pumping, tool internal and external pressure balance, resetting spring 3 is sprung back, mandrel 2 and lower 15 uplink of mandrel in promotion, on
Upper oil cavitie 32 during row, middle oil pocket 29 reduce, and middle oil pocket 29 and 26 fluid of lower oil cavitie will flow into upper oil cavitie 32, lower oil cavitie 26
Volume change is then compensated by being free to move axially for dummy piston 20；Upper cylinder oil pocket 31 and lower oil cylinder oil during downlink
28 body of chamber becomes larger, and the fluid in upper cylinder barrel 6 and lower cylinder barrel 12 then enters upper cylinder by upper oil hole 30 and lower oilhole 27 respectively
Oil pocket 31 and lower oil cylinder oil pocket 28, upper piston 7 and lower piston 11 make axial back movement, wiper block under the action of annular space pressure
9 are retracted by wire circlip 10, and stabilizer outer diameter becomes smaller, and returns to off working state（As Figure 1 and Figure 4）.
During upper mandrel 2 and lower 7 uplink and downlink of mandrel, cam mechanism acts therewith, there is " W " shape on cam
Slot, this slot coordinate with cam pin assemblies 18, this structure with common stabilizer Stroke Control cam structure be it is the same, can be right
The downward storke of lower mandrel 15 is controlled, and has a short stroke and a long stroke, and cam moves mistake up and down after termination of pumping turn on pump again
Journey alternating is primary, then the stroke of 15 downlink of mandrel is descended also to be converted in short stroke and long stroke.When in short stroke, stroke is whole
, stabilizer is as shown in Figure 2 and Figure 5 in working condition is flushed, and the variation of this state diameter is small；When in long stroke, stroke
It ends, stabilizer is as shown in Figure 3 and Figure 6 in working condition is stretched out, this state diameter changes greatly.Control reducing is steady in this approach
Determine the size of device diameter change, so recycle, each turn on pump tool external diameter size switching is primary.
Under different outer diameter sizes, since the stroke of 7 downlink of lower mandrel is different, 7 downlink of mandrel is short instantly
When stroke, beacon 23 is not entangled in lower 7 downlink of mandrel end of a period, could not almost play the role of throttling to drilling fluid, such as Fig. 2 institutes
Show；Instantly when 7 downlink of mandrel is long stroke, beacon 23 is entangled in lower 7 downlink of mandrel end of a period, significantly contracts to drilling fluid area of passage
It is small, the effect of throttling is generated, as shown in figure 3, the pump pressure of ground drilling pump becomes larger.This pump pressure is exactly based on during drilling well
Variation determines the diameter situation of underground tapered stabilizer.
Wiper block is the variation that radial diameter is generated using the axial movement of upper lower inclined plane, to make tapered stabilizer
Corresponding variation occurs for working condition, it is of course also possible to directly push wiper block to piston is stretched out using common tool bore
Structure type；In addition it is also feasible to become multi-disc from 3 shown in the quantity of wiper block.
Claims (3)
1. hydraulic buckling type remote control diameter variable stabilizer includes pushing mechanism, the support tube of ontology (1), setting in ontology (1)
(22), beacon (23) and righting mechanism in ontology (1) outside is set, which is characterized in that the pushing mechanism includes：Upper mandrel
(2) tubing string led in being connected and composed with lower mandrel (15), be equipped at the top of upper mandrel (2) slide axially with ontology (1) inner wall it is close
The convex edge of cooperation is sealed, the downward annular space intracavitary in upper mandrel (2) top convex edge is equipped with resetting spring (3), moves and live successively from top to bottom
Cock body (5) and upper quiet piston (8), under quiet piston (14), wherein resetting spring (3) lower end by with spring base（4）Ontology（1）
It is relatively fixed connection, piston body (5) is axially spaced outside to seal the upper piston body of cooperation equipped with sliding axially with ontology (1)
(36) and lower piston body (38), upper quiet piston (8), under quiet piston (14) interval be fixed on ontology (1) inner wall and be located at upper piston
Body (36) and lower piston body (38) lower part, upper quiet piston (8), under quiet piston (14) slide axially with piston body (5) sealing
Cooperation, upper quiet piston (8) respectively constitute upper cylinder oil pocket with upper piston body (36) and lower piston body (38)（31）With middle oil pocket
（29）, lower piston body (38) quiet lower oil cylinder oil pocket of piston (14) composition under（28）, resetting spring (3) is located at upper piston body (36)
With the upper oil cavitie of upper mandrel (2) composition（32）Interior, resetting spring (3) both ends are convex with upper piston body (36) and upper mandrel (2) respectively
Along effect；It is equipped with cam (17), dummy piston in annular chamber between lower mandrel (15) and support tube (22) successively from top to bottom
(20), pressure drop piston (21), wherein cam (17) and the cam pin assemblies being located on ontology (1)（18）Limit cooperation, balance are lived
Plug (20) and pressure drop piston (21) are spaced apart and the sealing cooperation that slides axially with ontology (1) and lower mandrel (15), balance are lived
It fills in (20) quiet piston (14) under and constitutes lower oil cavitie（26）；Beacon (23) is fixed on ontology (1) lower end by support tube (22),
Beacon (23) constitutes axial mating with lower mandrel (15)；The righting mechanism includes：It is set from top to bottom outside ontology (1)
There are the fixed upper cylinder barrel (6) of same ontology (1) and lower cylinder barrel (12), upper piston is respectively equipped in upper cylinder barrel (6) and lower cylinder barrel (12)
(7), lower piston (11) are evenly equipped with multiple wiper blocks (9), wiper block (9) and upper work between upper piston (7), lower piston (11)
Plug (7), lower piston (11) conical surface are slidably matched, and are limited and are connected by clamp spring (10) between wiper block (9)；Upper oil cavitie（32）, in
Oil pocket（29）And lower oil cavitie（26）It is mutually communicated, the piston that upper cylinder oil pocket (31) is formed with upper cylinder barrel (6) and upper piston (7)
Chamber, lower oil cylinder oil pocket（28）The plunger shaft formed with lower cylinder barrel (12) and lower piston (11) passes through ontology respectively（1）On oil
Hole（30）With lower oilhole（27）Perforation, ontology (1) are equipped with the chamber between dummy piston (20) and pressure drop piston (21)
Annulus bore（25）.
2. according to the hydraulic buckling type remote control diameter variable stabilizer described in claim 1, it is characterised in that：The clamp spring（10）It is logical
Cross wiper block（9）Circumferential recess（41）With wiper block（9）Limit connection, in wiper block（9）It is equipped with convex block（35）, inside there is step
Hole（40）, have mounted on ontology in stepped hole（1）On anti-drop screw（39）.
3. hydraulic buckling type remote control diameter variable stabilizer according to claim 1 or 2, it is characterised in that：Cam (17) passes through
Upper bearing (metal) (16) and lower bearing (19) are connect with lower mandrel (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510704643.9A CN106609659B (en) | 2015-10-27 | 2015-10-27 | Hydraulic buckling type remote control diameter variable stabilizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510704643.9A CN106609659B (en) | 2015-10-27 | 2015-10-27 | Hydraulic buckling type remote control diameter variable stabilizer |
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| Publication Number | Publication Date |
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| CN106609659A CN106609659A (en) | 2017-05-03 |
| CN106609659B true CN106609659B (en) | 2018-10-23 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930698B (en) * | 2017-05-12 | 2018-12-07 | 西南石油大学 | A kind of tool-face positioning device |
| CN106968615B (en) * | 2017-05-15 | 2018-07-24 | 中石化石油机械股份有限公司研究院 | Pressure type tapered stabilizer |
| CN109505533A (en) * | 2018-12-10 | 2019-03-22 | 盐城庆隆机械有限公司 | A kind of novel hydraulic elastic centralizer |
| CN109519124B (en) * | 2018-12-14 | 2024-01-23 | 中国石油天然气集团有限公司 | Two-dimensional guiding tool assembly and guiding method for petroleum drilling |
| CN114233209B (en) * | 2021-12-18 | 2024-04-30 | 江苏航天鸿鹏数控机械有限公司 | Hydraulic reducing centralizer |
| CN116624109B (en) * | 2023-07-25 | 2023-09-19 | 成都阿斯贝瑞科技有限公司 | Multi-pitching variable-diameter hydraulic centralizer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5447207A (en) * | 1993-12-15 | 1995-09-05 | Baroid Technology, Inc. | Downhole tool |
| CN201031662Y (en) * | 2007-04-11 | 2008-03-05 | 中国石化集团中原石油勘探局钻井工程技术研究院 | Down-hole controllable type boring tool by-pass valve |
| CN201202425Y (en) * | 2008-06-13 | 2009-03-04 | 重庆望江工业有限公司 | Full hydraulic double-acting drill following bumper jar |
| US8978783B2 (en) * | 2011-05-26 | 2015-03-17 | Smith International, Inc. | Jet arrangement on an expandable downhole tool |
| CN204419067U (en) * | 2015-01-09 | 2015-06-24 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Drilling well controllable diameter changeable stabilizer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2490924B (en) * | 2011-05-18 | 2013-07-10 | Volnay Engineering Services Ltd | Improvements in and relating to downhole tools |
-
2015
- 2015-10-27 CN CN201510704643.9A patent/CN106609659B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5447207A (en) * | 1993-12-15 | 1995-09-05 | Baroid Technology, Inc. | Downhole tool |
| CN201031662Y (en) * | 2007-04-11 | 2008-03-05 | 中国石化集团中原石油勘探局钻井工程技术研究院 | Down-hole controllable type boring tool by-pass valve |
| CN201202425Y (en) * | 2008-06-13 | 2009-03-04 | 重庆望江工业有限公司 | Full hydraulic double-acting drill following bumper jar |
| US8978783B2 (en) * | 2011-05-26 | 2015-03-17 | Smith International, Inc. | Jet arrangement on an expandable downhole tool |
| CN204419067U (en) * | 2015-01-09 | 2015-06-24 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Drilling well controllable diameter changeable stabilizer |
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| CN106609659A (en) | 2017-05-03 |
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Effective date of registration: 20211009 Address after: 100027 Chaoyangmen North Street, Chaoyang District, Chaoyang District, Beijing Patentee after: SINOPEC Group Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY Research Institute Address before: 100101 Beichen West Road, Chaoyang District, Beijing 8 Beichen world center, block A 703. Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY Research Institute |