CN106050182A - Enhanced synchronous rotation blowout preventer - Google Patents
Enhanced synchronous rotation blowout preventer Download PDFInfo
- Publication number
- CN106050182A CN106050182A CN201610524790.2A CN201610524790A CN106050182A CN 106050182 A CN106050182 A CN 106050182A CN 201610524790 A CN201610524790 A CN 201610524790A CN 106050182 A CN106050182 A CN 106050182A
- Authority
- CN
- China
- Prior art keywords
- hole
- rotary inner
- clamping device
- inner casing
- pipe clamping
- 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.)
- Granted
Links
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 230000008093 supporting effect Effects 0.000 claims abstract description 4
- 238000012856 packing Methods 0.000 claims description 19
- 238000003754 machining Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 17
- 125000003003 spiro group Chemical group 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 230000007704 transition 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to an enhanced synchronous rotation blowout preventer. A rubber tube assembly is embedded in an upper end step position of a center hole of a rotary inner case by a metal hanging ring arranged at the upper side; a rubber tube body with a plurality of elastic steel wires at the lower side extends out of the lower end surface of the center hole of the rotary inner case; the rotary inner case, a conical roller bearing arranged under an outer circle flange of the rotary inner case and a thrust ball bearing arranged at the upper side of the outer circle flange of the rotary inner case are radially sealed by a bottom flange, a fixed case, an upper O-shaped ring, a sealing gasket, a lower O-shaped ring and screw bolts; and a combination body capable of rotating relative to the bottom flange and the fixed case under the supporting effect of the conical roller bearing and the thrust ball bearing is formed by connecting the rubber tube assembly and the rotary inner case with a pipe clamper assembly for clamping and holding a drill pipe by a plurality of long screws and the upper plane of the rubber tube assembly and the rotary inner case projected out of the fixed outer case. The metal hanging ring and a plurality of elastic steel wires are added in the rubber tube assembly, so that the tensile strength of a sealing rubber tube is enhanced; and the pipe clamper assembly is additionally arranged above the rotation blowout preventer, so that the problems of fast abrasion and relative rotation of the drill pipe and the sealing rubber tube are solved.
Description
Art
The present invention relates to petroleum machinery, drilling equipment: the research and development of products of drilling tool blowout preventer.
Background technology
Under balance pressure drilling or workover treatment, all be unable to do without rotating blowout preventer product；Use rotating blowout preventer, it is possible to achieve oil
Collar sky Operating Pressure, thus improve the working performance of drilling well or well workover.But currently used various rotating blowout preventer, no
Only exist that " product structure is complicated, volume is big, price is high；The model of swivel bearing is selected not good enough, and installation site is improper, lubrication
Bad；The tensile strength of cartridge is poor, easily pulls bad during drilling rod passes in and out " etc. problem；But also there is drilling rod and close
The problem being difficult to relative motion and the Fast Wearing eliminated between sealing cylinder, is to affect cartridge service life and drilling and repairing well work
One of subject matter of industry.Therefore, optimize structure and the design of rotating blowout preventer further, improve its combination property, very comprehensively
It is necessary.
Summary of the invention
The purpose of the present invention, is the problem existed for existing rotating blowout preventer, takes many technical measures, develops one
Volume is little, lightweight, and intensity is high, resistance to be pullled, and reaction is fast, rotates, weares and teares less, the enhancement mode synchronous rotary blowout prevention of life-span length
Device, to further enhance the competitiveness of product in market.
The present invention is by end flange, packing element assembly, rotary inner casing, taper roll bearing, thrust ball bearing, fixing shell, card
Pipe device assembly and supporting sealing member, securing member are formed；In place of its characteristic it is: a packing element assembly, top metal hanging ring
Being set at the upper end step of rotary inner casing centre bore, the rubber cylinder comprising many elastic wires below stretches out in rotary inner casing
The lower surface of central hole；Rotary inner casing is together with a taper roll bearing below its outer circumference flange dish and a thrust ball above
Bearing, by end flange, fixing shell, upper O, seal washer, lower O together with screw radial-sealing；Packing element assembly
And rotary inner casing, protrude the upper plane sum root length screw of fixing shell with it, with the pipe clamping device assembly of a holding drill pipe, connection
It is connected into a community rotated under taper roll bearing and thrust ball bearing are helped, relative to end flange and fixing shell.
Owing to the present invention is made up of the several main parts size caned be counted on one's fingers, simplifies product structure, reduce product
Volume.One taper roll bearing and a thrust ball bearing, be centered around the middle part of rotating blowout preventer；End flange, fixing shell,
The closing space that upper O, seal washer, lower O and rotary inner casing are formed, be two bearings provide good sealing and
Lubricating condition, decreases rotational resistance so that it is go slick.Its packing element assembly, uses the center of metal hanging ring and rotary inner casing
Hole connects, and uniform many elastic wires in rubber cylinder, adds the tensile strength of packing element assembly, to avoid inserting at drilling rod
Fashionable accidental damage packing element.Particularly on packing element assembly and rotary inner casing, the pipe clamping device installing a holding drill pipe is total
Becoming, speed up drilling rod with paired curved tooth roller clip, a permission drilling rod runs up and down, and forces drilling rod to drive packing element assembly, rotation
Inner shell rotates together with bearing, thus solves the relative motion and the difficulty of Fast Wearing existed between drilling rod and cartridge
Topic, makes the total quality of rotating blowout preventer and performance bring up to a new height.
Accompanying drawing explanation
Detailed description of the invention and embodiment to the present invention are described further below in conjunction with the accompanying drawings:
Fig. 1 is population structure (revolved section of B-B in Fig. 3) schematic diagram of the present invention；
Fig. 2 is in pipe clamping device assembly of the present invention, the schematic diagram of roller group outer face (in Fig. 1 A to)；
Fig. 3 is in pipe clamping device assembly of the present invention, the embodiment schematic top plan view of 4 roller groups.
In figure, the part name shown in label is as follows:
1, end flange, 2, packing element assembly, 3, rotary inner casing, 4, taper roll bearing, 5, thrust ball bearing, 6, suspension ring spiral shell
Nail, 7, fixing shell, 8, long spiro nail, 9, pipe clamping device assembly, 10, upper O, 11, seal washer, 12, screw, 13, lower O type
Circle, 2-1, O RunddichtringO, 2-2, metal hanging ring, 2-3, elastic wire, 2-4, rubber cylinder, 9-1, pipe clamping device housing, 9-2, arc
Tooth roller, 9-3, stop screw, 9-4, roller shaft, 9-5, mobile slide block, 9-6, end cap, 9-7, driving screw rod, 9-8, nut, 9-
9, thrust ball bearing, 9-10, joint bolt.
Detailed description of the invention
In Fig. 1, the main parts size of the present invention has: end flange (1), packing element assembly (2), rotary inner casing (3), taper roller
Bearing (4), thrust ball bearing (5), fixing shell (7) and pipe clamping device assembly (9), remaining is all supporting sealing member and fastening
Part.End flange (1) is overall in I-shaped, and center is up big and down small step through-hole, is used for accommodating drilling rod, packing element assembly (2)
With rotary inner casing (3)；Macropore above step through-hole is machined with three road grooves, is used for lower O (13) is installed；End flange
(1) upper plane, is machined with round platform rank and the uniform screw hole of periphery, is connected with the bottom with fixing shell (7)；End flange
(1) baseplane, the side of centre bore is machined with trapezoidal gasket ring groove, is machined with uniform bolt hole at circumferential edge, uses and well head
Equipment sealingly connects.
Packing element assembly (2), by O RunddichtringO (2-1), metal hanging ring (2-2), elastic wire (2-3) and rubber cylinder (2-
4) formed.Metal hanging ring (2-2) is positioned at the upper brim of packing element assembly (2), is respectively arranged with O RunddichtringO in the twice groove of cylindrical
(2-1), many uniform apertures of lower plane insert many aduncate elastic wires (2-3)；Upper coarse and lower fine rubber tube
Body (2-4), contains integral by metal hanging ring (2-2) and all of elastic wire (2-3).The center of rubber cylinder (2-4), be
Up big and down small stepped hole with big cone angle transition；The diameter of aperture is slightly less than drill pipe diameter, in order to when drilling rod inserts, and to it
Seal.
The center of rotary inner casing (3) is up big and down small stepped hole, is used for installing packing element assembly (2)；Rotary inner casing (3)
Peripheral upper coarse and lower fine, upper position has the flange of projection, and flange has 4 screwed holes, be used for installing taper roll bearing (4) and
Thrust ball bearing (5)；The upper plane of rotary inner casing (3), uniform 2～4 groups of tapped blind holes, in order to by long spiro nail (8) join card
Pipe device assembly (9)；The two ends cylindrical of rotary inner casing (3), the hole of topping bar with end flange (1) and fixing shell (7) is carried out respectively
It is rotatably assorted.During work, rotary inner casing (3) carries the active force on packing element assembly (2) and pipe clamping device assembly (9), in cone rolling
Under sub-bearing (4) and thrust ball bearing (5) help, rotate relative to end flange (1) and fixing shell (7) together.
Fixing shell (7) is up-thin-low-thick hollow cylinder: on the cylindrical wall that side is thinner on its outer, add symmetrically
Work has two screwed holes, respectively fills a lifting bolt (6) in screwed hole, and after pulling down lifting bolt (6), two screwed holes can conduct
Tank filler sleeve, for thrust ball bearing (5) and taper roll bearing (4) charging-up lubricant oil；It is machined with up-small and down-big platform therein
Hole, rank, the least hole wall is machined with twice groove, is respectively arranged with O (10) in groove；Thereon in plane, processing
There is the screwed hole of 4 uniform band pits, be used for removing built-in thrust ball bearing (5)；On its lower plane, processing
There is uniform screwed hole, be connected with end flange (1), seal washer (11) and screw (12).
In Fig. 1 and Fig. 2, pipe clamping device assembly (9) is by pipe clamping device housing (9-1), curved tooth roller (9-2), stop screw (9-
3), roller shaft (9-4), mobile slide block (9-5), end cap (9-6), driving screw rod (9-7), nut (9-8), thrust ball bearing (9-
9) formed with joint bolt (9-10)；Each curved tooth roller (9-2), stop screw (9-3), roller shaft (9-4), movement are slided
Block (9-5), end cap (9-6), driving screw rod (9-7), nut (9-8) and two thrust ball bearings (9-9), four joint bolts
(9-10) form a roller group, be symmetrically mounted at the uniform radial hole of pipe clamping device housing (9-1) and the minor thread of periphery
Kong Zhong.The inner of each mobile slide block (9-5) in pipe clamping device assembly (9), is all machined with big breach, all uses roller in big breach
Axle (9-4) is interspersed with a rotary curved tooth roller (9-2)；The outer end of slide block (9-5) is all machined with a tapped blind hole,
It is connected with the screw rod end driving screw rod (9-7)；The periphery of slide block (9-5) all slides with the radial hole of pipe clamping device housing (9-1)
Coordinate；Above slide block (9-5), all it is machined with an elongated slot, with the stop screw (9-being fixed on pipe clamping device housing (9-1)
3) match, in case limited slip block (9-5) inwardly slips.The inner driving screw rod (9-7) is all longer screw rod, and outer end is thicker
All having the bank of one projection on cylinder, the both sides of bank respectively fill a thrust ball bearing (9-9)；Drive screw rod (9-7) and two
Thrust ball bearing (9-9), is all enclosed in by nut (9-8) in the centre bore of end cap (9-6) outer end；Drive outside screw rod (9-7)
End face is all machined with a hexagon ring, when external die nut inserts in the hole and rotates forward or backwards, drives screw rod (9-7)
Slide block (9-5) and curved tooth roller (9-2) can be driven, clamp or leave drilling rod.On the flange that end cap (9-6) is inner, symmetrically
It is machined with 4 stepped holes, is connected with pipe clamping device housing (9-1) with joint bolt (9-10).
In pipe clamping device assembly (9), the blank of pipe clamping device housing (9-1) is a flat cylinder: its center is processed into
Cylindrical hole, in order to drilling rod passes in and out；On it, plane machining has 2～4 screwed holes and the screw hole of 2～4 groups of band pits, is respectively intended to
Stop screw (9-3) and long spiro nail (8) are installed；Its side is machined with 2～4 uniform planes and radial hole, each flat
On face, the surrounding of radial hole be all machined with 4 minor thread holes, be used for roller group is installed.The upper plane of pipe clamping device housing (9-1)
Screwed hole and the screw hole of band pit, its number is corresponding with the quantity of radial hole and roller group with group number；And upper planar band
The screw hole of pit, the quantity often organized is between 2～6, and is inversely proportional to the quantity of roller group.Fig. 3 is conventional pipe clamping device
One embodiment of assembly (9): the side plane of pipe clamping device housing (9-1), radial hole and the roller group being mounted in it, quantity is
4, in order to clamp drilling rod accordingly.
Claims (7)
1. an enhancement mode synchronous rotary preventer, by end flange, packing element assembly, rotary inner casing, taper roll bearing, thrust ball
Bearing, fixing shell, pipe clamping device assembly and supporting sealing member, securing member are formed；It is characterized in that: a packing element assembly (2),
Top metal hanging ring (2-2) is set at the upper end step of rotary inner casing (3) centre bore, comprises many elastic wire (2-below
3) rubber cylinder (2-4) stretches out the lower surface of rotary inner casing (3) centre bore；Rotary inner casing (3) is together with under its outer circumference flange dish
One taper roll bearing (4) in face and a thrust ball bearing (5) above, by end flange (1), fixing shell (7), upper O
Type circle (10), seal washer (11), lower O (13) and screw (12) radial-sealing are together；In packing element assembly (2) and rotation
Shell (3), protrudes upper plane sum root length screw (8) of fixing shell (7) with it, with the pipe clamping device assembly of a holding drill pipe
(9) one, it is connected under taper roll bearing (4) and thrust ball bearing (5) are helped, relative to end flange (1) with outside fixing
The community that shell (7) rotates.
Enhancement mode synchronous rotary preventer the most according to claim 1, is characterized in that: packing element assembly (2), O type seal
Circle (2-1), metal hanging ring (2-2), elastic wire (2-3) and rubber cylinder (2-4) are formed；Metal hanging ring (2-2) is positioned at glue
The upper brim of cylinder assembly (2), is respectively arranged with O RunddichtringO (2-1), in many uniform apertures of lower plane in the twice groove of cylindrical
Insert many aduncate elastic wires (2-3)；Upper coarse and lower fine rubber cylinder (2-4), by metal hanging ring (2-2) and all
Elastic wire (2-3) contain integral.
Enhancement mode synchronous rotary preventer the most according to claim 1, is characterized in that: on the center of rotary inner casing (3) is
Stepped hole little under great；The periphery of rotary inner casing (3) is upper coarse and lower fine, and upper position has the flange of projection, and flange has 4 screw threads
Hole；The upper plane of rotary inner casing (3), uniform 2～4 groups of tapped blind holes；The two ends cylindrical of rotary inner casing (3), respectively with end method
The hole of topping bar of blue (1) and fixing shell (7) is rotatably assorted.
Enhancement mode synchronous rotary preventer the most according to claim 1, is characterized in that: fixing shell (7) is up-thin-low-thick
Hollow cylinder: on its outer on the thinnest cylindrical wall in side, be machined with two screwed holes symmetrically, screwed hole respectively fill one
Individual lifting bolt (6)；It is machined with up-small and down-big stepped hole therein, the least hole wall is machined with twice recessed
Groove, is respectively arranged with O (10) in groove；Thereon in plane, it is machined with the screwed hole of 4 uniform band pits；Lower flat at it
On face, it is machined with uniform screwed hole.
Enhancement mode synchronous rotary preventer the most according to claim 1, is characterized in that: pipe clamping device assembly (9) is by pipe clamping device
Housing (9-1), curved tooth roller (9-2), stop screw (9-3), roller shaft (9-4), mobile slide block (9-5), end cap (9-6), drive
Dynamic screw rod (9-7), nut (9-8), thrust ball bearing (9-9) and joint bolt (9-10) are formed；Each curved tooth roller (9-
2), stop screw (9-3), roller shaft (9-4), mobile slide block (9-5), end cap (9-6), driving screw rod (9-7), nut (9-8)
Form a roller group with two thrust ball bearings (9-9), four joint bolts (9-10), be symmetrically mounted at pipe clamping device housing
(9-1) in the minor thread hole of uniform radial hole and periphery.
The most according to claim 1 or 5, enhancement mode synchronous rotary preventer, is characterized in that: in pipe clamping device assembly (9),
The blank of pipe clamping device housing (9-1) is a flat cylinder: cylindrical hole is processed at its center, and on it, plane machining has 2～4
Screwed hole and the screw hole of 2～4 groups of band pits, its side is machined with 2～4 uniform planes and radial hole, each flat
On face, the surrounding of radial hole be all machined with 4 minor thread holes.
7. according to the enhancement mode synchronous rotary preventer described in claim 1 or 6, it is characterized in that: the side of pipe clamping device housing (9-1)
Plane, radial hole and the roller group being mounted in it, quantity is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610524790.2A CN106050182B (en) | 2016-06-27 | 2016-06-27 | A kind of enhanced synchronous rotary preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610524790.2A CN106050182B (en) | 2016-06-27 | 2016-06-27 | A kind of enhanced synchronous rotary preventer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106050182A true CN106050182A (en) | 2016-10-26 |
| CN106050182B CN106050182B (en) | 2018-06-12 |
Family
ID=57202011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610524790.2A Active CN106050182B (en) | 2016-06-27 | 2016-06-27 | A kind of enhanced synchronous rotary preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106050182B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266150A (en) * | 2016-12-30 | 2018-07-10 | 中国石油天然气股份有限公司 | Workover treatment method and system |
| CN109519139A (en) * | 2018-10-30 | 2019-03-26 | 四川共拓岩土科技股份有限公司 | A kind of aperture security closure of anti-high pressure water |
| WO2019147884A1 (en) * | 2018-01-26 | 2019-08-01 | National Oilwell Varco, L.P. | Pressure control devices for sealing around tubular members |
| CN110952948A (en) * | 2019-11-11 | 2020-04-03 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Bearing assembly of rotary blowout preventer |
| CN113775312A (en) * | 2021-10-27 | 2021-12-10 | 四川艾文思创能源科技有限公司 | Rotary load-bearing flashboard |
| CN114396241A (en) * | 2022-03-28 | 2022-04-26 | 四川新为橡塑有限公司 | Double-layer sealed spherical rubber core and annular blowout preventer |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4143881A (en) * | 1978-03-23 | 1979-03-13 | Dresser Industries, Inc. | Lubricant cooled rotary drill head seal |
| US20040084220A1 (en) * | 2002-10-31 | 2004-05-06 | Bailey Thomas F. | Active/passive seal rotating control head |
| US20070125548A1 (en) * | 2004-02-20 | 2007-06-07 | Williams John R | Stripper rubber insert assembly |
| CN102061900A (en) * | 2010-12-14 | 2011-05-18 | 雷宽成 | Rotary self-sealing well sealer |
| CN103498639A (en) * | 2013-09-27 | 2014-01-08 | 中国石油天然气集团公司 | Portable well head device and using method |
| CN104963651A (en) * | 2015-07-29 | 2015-10-07 | 中铁工程装备集团有限公司 | Novel gushing-prevention device for small-sized orifice |
| CN105507828A (en) * | 2016-01-21 | 2016-04-20 | 赤峰市浩峰钻机有限责任公司 | Roller-type clamp |
| CN205955687U (en) * | 2016-06-27 | 2017-02-15 | 阜宁县石油机械有限公司 | Enhancement mode synchronous revolution preventer |
-
2016
- 2016-06-27 CN CN201610524790.2A patent/CN106050182B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4143881A (en) * | 1978-03-23 | 1979-03-13 | Dresser Industries, Inc. | Lubricant cooled rotary drill head seal |
| US20040084220A1 (en) * | 2002-10-31 | 2004-05-06 | Bailey Thomas F. | Active/passive seal rotating control head |
| US20070125548A1 (en) * | 2004-02-20 | 2007-06-07 | Williams John R | Stripper rubber insert assembly |
| CN102061900A (en) * | 2010-12-14 | 2011-05-18 | 雷宽成 | Rotary self-sealing well sealer |
| CN103498639A (en) * | 2013-09-27 | 2014-01-08 | 中国石油天然气集团公司 | Portable well head device and using method |
| CN104963651A (en) * | 2015-07-29 | 2015-10-07 | 中铁工程装备集团有限公司 | Novel gushing-prevention device for small-sized orifice |
| CN105507828A (en) * | 2016-01-21 | 2016-04-20 | 赤峰市浩峰钻机有限责任公司 | Roller-type clamp |
| CN205955687U (en) * | 2016-06-27 | 2017-02-15 | 阜宁县石油机械有限公司 | Enhancement mode synchronous revolution preventer |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266150A (en) * | 2016-12-30 | 2018-07-10 | 中国石油天然气股份有限公司 | Workover treatment method and system |
| WO2019147884A1 (en) * | 2018-01-26 | 2019-08-01 | National Oilwell Varco, L.P. | Pressure control devices for sealing around tubular members |
| CN109519139A (en) * | 2018-10-30 | 2019-03-26 | 四川共拓岩土科技股份有限公司 | A kind of aperture security closure of anti-high pressure water |
| CN109519139B (en) * | 2018-10-30 | 2020-12-11 | 四川共拓岩土科技股份有限公司 | Prevent drill way safety seal device of water under high pressure |
| CN110952948A (en) * | 2019-11-11 | 2020-04-03 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Bearing assembly of rotary blowout preventer |
| CN113775312A (en) * | 2021-10-27 | 2021-12-10 | 四川艾文思创能源科技有限公司 | Rotary load-bearing flashboard |
| CN114396241A (en) * | 2022-03-28 | 2022-04-26 | 四川新为橡塑有限公司 | Double-layer sealed spherical rubber core and annular blowout preventer |
| CN114396241B (en) * | 2022-03-28 | 2022-06-10 | 四川新为橡塑有限公司 | Double-layer sealed spherical rubber core and annular blowout preventer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106050182B (en) | 2018-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106050182A (en) | Enhanced synchronous rotation blowout preventer | |
| CN205331209U (en) | High -efficient antifriction bearing | |
| CN107227938B (en) | Repairable rotary guide shoe assembly for well bore | |
| CA2964077C (en) | Securing mechanism for rotary assembly wear sleeves | |
| CN101949268B (en) | Rotating joint | |
| CN205955687U (en) | Enhancement mode synchronous revolution preventer | |
| CN108716362B (en) | Hydraulic bearing screw drilling tool | |
| CN112388001A (en) | Hydraulic drill clamp | |
| CN208236339U (en) | The composite drill bit of Split teeth wheel and PDC | |
| CN105782450A (en) | Water sealing structure of raise boring machine | |
| CN101328935B (en) | Mechanical seal suspension bearing seat | |
| CN104989291A (en) | Spline cardan shaft type screw drill | |
| CN205350061U (en) | Sealed tandem type bearing for drilling tool in area | |
| CN205350060U (en) | Tandem type bearing for drilling tool | |
| CN211342811U (en) | Well drilling casing with anti-abrasion function | |
| CN210967945U (en) | Plate spring seat positioning tool | |
| CN210439987U (en) | Quick connection type drill rod joint | |
| CN204449058U (en) | One revolves riveting device | |
| CN207260972U (en) | Double reduction component and the oild chuck formula drill-rod clamping device for being provided with the component | |
| CN208886355U (en) | A kind of IIC grades of explosion-proof oiling device | |
| CN208650816U (en) | A kind of geomantic omen faucet | |
| CN207701089U (en) | A kind of super helicoid hydraulic motor | |
| CN207260973U (en) | A kind of oild chuck formula drill rod grip device | |
| CN213541064U (en) | Lathe bearing with prevent function of skidding | |
| CN219101281U (en) | Sealing liquid lubrication roller structure for borehole trimming tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |