CN106050182B - A kind of enhanced synchronous rotary preventer - Google Patents
A kind of enhanced synchronous rotary preventer Download PDFInfo
- Publication number
- CN106050182B CN106050182B CN201610524790.2A CN201610524790A CN106050182B CN 106050182 B CN106050182 B CN 106050182B CN 201610524790 A CN201610524790 A CN 201610524790A CN 106050182 B CN106050182 B CN 106050182B
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- China
- Prior art keywords
- inner casing
- hole
- clamping device
- rotary inner
- pipe clamping
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 11
- 238000012856 packing Methods 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 18
- 125000003003 spiro group Chemical group 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 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
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000003921 oil Substances 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
- 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
A kind of enhanced synchronous rotary preventer, by a packing element assembly, top is set in metal hanging ring at the upper end step of rotary inner casing centre bore, and the rubber cylinder below comprising more elastic wires stretches out the lower face of rotary inner casing centre bore；Rotary inner casing is together with a taper roll bearing below its outer circumference flange disk and a thrust ball bearing above, together with bottom flange, fixing shell, upper O-ring, seal washer, lower O-ring and bolt radial-sealing；Packing element assembly and rotary inner casing, the upper plane sum number root long screw of fixing shell is protruded with it, with the pipe clamping device assembly of a holding drill pipe, it is connected into a community rotated under taper roll bearing and thrust ball bearing support, relative to bottom flange and fixing shell.Due to adding metal hanging ring and Duo Gen elastic wires in packing element assembly, the tensile strength of cartridge is increased；In the top of rotating blowout preventer, install pipe clamping device assembly additional, solve the problems, such as drilling rod and cartridge relative rotation and Fast Wearing.
Description
Technical field
The present invention relates to petroleum machinery, drilling equipments：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；Using rotating blowout preventer, oil can be realized
Lantern ring sky Operating Pressure, so as to improve the operating efficiency of drilling well or well workover.But the various rotating blowout preventer used at present, no
There is only " product structure is complicated, volume is big, price is high；The model selection of swivel bearing is not good enough, and installation site is improper, lubrication
It is bad；The tensile strength of cartridge is poor, is easily pulled bad during drilling rod disengaging " the problems such as；But also there is drilling rods and close
The problem of relative motion eliminated and Fast Wearing are difficult between sealing cylinder is to influence cartridge service life and drilling and repairing well work
One of main problem of industry.Therefore, the structure and design of rotating blowout preventer are advanced optimized, improves its comprehensive performance comprehensively, very
It is necessary to.
Invention content
The purpose of the present invention, be for existing rotating blowout preventer there are the problem of, take many technical measures, develop a kind of
It is small, light-weight, intensity is high, it is resistance to pull, reaction is fast, rotate, wears less, the enhanced synchronous rotary blowout prevention of long lifespan
Device, to further enhance the competitiveness of product in market.
The present invention is by bottom flange, packing element assembly, rotary inner casing, taper roll bearing, thrust ball bearing, fixing shell, card
Pipe device assembly and mating sealing element, fastener are formed；It is in place of its characteristic：One packing element assembly, top metal hanging ring
It is set at the upper end step of rotary inner casing centre bore, the rubber cylinder for including more elastic wires below is stretched out in rotary inner casing
The lower face in heart hole；Rotary inner casing is together with a taper roll bearing below its outer circumference flange disk and a thrust ball above
Bearing, together with bottom flange, fixing shell, upper O-ring, seal washer, lower O-ring and screw radial-sealing；Packing element assembly
And rotary inner casing, protrude the upper plane sum number root long screw of fixing shell, the pipe clamping device assembly with a holding drill pipe, connection with it
It is connected into a community rotated under taper roll bearing and thrust ball bearing support, relative to bottom flange and fixing shell.
Since the present invention is made of very few several main parts sizes, product structure is simplified, reduces product
Volume.One taper roll bearing and a thrust ball bearing are centered around the middle part of rotating blowout preventer；Bottom flange, fixing shell,
The enclosure space that upper O-ring, seal washer, lower O-ring and rotary inner casing are formed, for two bearings provide good sealing with
Lubricating condition reduces rotational resistance, it is made to go slick.Its packing element assembly, using the center of metal hanging ring and rotary inner casing
Hole connects, and the uniformly distributed more elastic wires in rubber cylinder, increases the tensile strength of packing element assembly, is inserted to avoid in drilling rod
Fashionable accidental damage packing element.Particularly above packing element assembly and rotary inner casing, the pipe clamping device for installing a holding drill pipe is total
Into, drilling rod is speeded up with pairs of curved tooth roller clip, permission drilling rod operation up and down, and drilling rod is forced to drive packing element assembly, rotation
Inner casing and bearing rotate together, so as to solve the difficulty of existing relative motion and Fast Wearing between drilling rod and cartridge
Topic, makes the total quality of rotating blowout preventer and performance be increased to a new height.
Description of the drawings
The specific embodiment and embodiment of the present invention are described further below in conjunction with the accompanying drawings：
Fig. 1 is overall 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 end face (in Fig. 1 A to)；
Fig. 3 is the embodiment schematic top plan view of 4 roller groups in pipe clamping device assembly of the present invention.
Part name shown in figure label is as follows：
1st, bottom flange, 2, packing element assembly, 3, rotary inner casing, 4, taper roll bearing, 5, thrust ball bearing, 6, hanging ring spiral shell
Nail, 7, fixing shell, 8, long spiro nail, 9, pipe clamping device assembly, 10, upper O-ring, 11, seal washer, 12, screw, 13, under it is O-shaped
Circle, 2-1, O-ring seal, 2-2, metal hanging ring, 2-3, elastic wire, 2-4, rubber cylinder, 9-1, pipe clamping device housing, 9-2, arc
Tooth idler wheel, 9-3, stop screw, 9-4, roller shaft, 9-5, mobile sliding block, 9-6, end cap, 9-7, driving screw rod, 9-8, nut, 9-
9th, thrust ball bearing, 9-10, joint bolt.
Specific embodiment
In Fig. 1, main parts size of the invention has：Bottom 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 mating sealing element and fastening
Part.Bottom flange (1) is integrally in I-shaped, and center is up big and down small step through-hole, for accommodating drilling rod, packing element assembly (2)
With rotary inner casing (3)；Three grooves are machined in macropore above step through-hole, for installing lower O-ring (13)；Bottom flange
(1) upper plane is machined with the uniformly distributed screw hole of round platform rank and periphery, is connected with the bottom with fixing shell (7)；Bottom flange
(1) baseplane is machined with trapezoidal gasket ring slot beside centre bore, uniformly distributed bolt hole, use and well head is machined at circumferential edge
Equipment sealingly connects.
Packing element assembly (2), by O-ring seal (2-1), metal hanging ring (2-2), elastic wire (2-3) and rubber cylinder (2-
4) it is formed.Metal hanging ring (2-2) is respectively arranged with O-ring seal in the twice groove of outer circle positioned at the upper brim of packing element assembly (2)
(2-1) inserts more aduncate elastic wires (2-3) in more uniformly distributed apertures of lower plane；Upper coarse and lower fine rubber tube
Body (2-4) contains metal hanging ring (2-2) and all elastic wires (2-3) integral.The center of rubber cylinder (2-4) is
With the up big and down small stepped hole of big cone angle transition；The diameter of aperture is slightly less than drill pipe diameter, when being inserted into so as to drilling rod, and to it
It is sealed.
The center of rotary inner casing (3) is up big and down small stepped hole, for installing packing element assembly (2)；Rotary inner casing (3)
Periphery is upper coarse and lower fine, and upper position has the flange of protrusion, has 4 threaded holes on flange, for install taper roll bearing (4) and
Thrust ball bearing (5)；The upper plane of rotary inner casing (3) is evenly distributed with 2~4 groups of tapped blind holes, to use long spiro nail (8) join card
Pipe device assembly (9)；The both ends outer circle of rotary inner casing (3) carries out respectively with the top bar hole of bottom flange (1) and fixing shell (7)
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), is rolled in cone
Under sub- bearing (4) and thrust ball bearing (5) help, rotated together relative to bottom flange (1) and fixing shell (7).
Fixing shell (7) is up-thin-low-thick hollow cylinder：On its outer on the thinner cylindrical wall in side, symmetrically add
Work respectively fills a lifting bolt (6), after removing lifting bolt (6), two threaded holes can conduct there are two threaded hole in threaded hole
Tank filler sleeve is that thrust ball bearing (5) and taper roll bearing (4) fill lubricating oil；It is machined with up-small and down-big platform inside it
Rank hole is machined with twice groove above on smaller hole wall, O-ring (10) is respectively arranged in slot；On it in plane, processing
There are 4 uniformly distributed threaded holes with pit, for removing built-in thrust ball bearing (5)；On its lower plane, processing
There is uniformly distributed threaded hole, be connected with bottom 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 idler wheel (9-2), stop screw (9-
3), roller shaft (9-4), mobile sliding block (9-5), end cap (9-6), driving screw rod (9-7), nut (9-8), thrust ball bearing (9-
9) it is formed with joint bolt (9-10)；Each curved tooth idler wheel (9-2), stop screw (9-3), roller shaft (9-4), mobile cunning
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) forms a roller group, is symmetrically mounted at the uniformly distributed radial hole of pipe clamping device housing (9-1) and the minor thread on periphery
Kong Zhong.The inner end of each mobile sliding block (9-5) in pipe clamping device assembly (9), is all machined with big notch, idler wheel is used in big notch
Axis (9-4) is interspersed with a rotary curved tooth idler wheel (9-2)；The outer end of sliding block (9-5) is all processed there are one tapped blind hole,
It is connected with the screw rod end of driving screw rod (9-7)；It is slided with the radial hole of pipe clamping device housing (9-1) on the periphery of sliding block (9-5)
Cooperation；Above sliding block (9-5), processing is there are one elongated slot, with the stop screw (9- being fixed on pipe clamping device housing (9-1)
3) it matches, is inwardly slipped to prevent limited slip block (9-5).The inner end for driving screw rod (9-7) is longer screw rod, and outer end is thicker
There is the bank of one of protrusion 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 enclosed in the centre bore of end cap (9-6) outer end by nut (9-8)；Drive the outer of screw rod (9-7)
End face is processed there are one hexagon ring, when external die nut, which inserts in the hole, to be rotated forward or backwards, drives screw rod (9-7)
Sliding block (9-5) and curved tooth idler wheel (9-2) can be driven, clamps or leave drilling rod.On the flange of end cap (9-6) inner end, symmetrically
4 stepped holes are machined with, are connected with joint bolt (9-10) and pipe clamping device housing (9-1).
In pipe clamping device assembly (9), the blank of pipe clamping device housing (9-1) is a flat cylinder：It is processed at its center
Cylindrical hole, so that drilling rod passes in and out；Plane machining has 2~4 threaded holes and 2~4 groups of screw holes with pit thereon, is respectively intended to
Stop screw (9-3) and long spiro nail (8) are installed；Its side is machined with 2~4 uniformly distributed planes and radial hole, each flat
4 minor thread holes are machined on face, around radial hole, for installing roller group.Plane on pipe clamping device housing (9-1)
Threaded hole and the screw hole with pit, number and group number are corresponding with the quantity of radial hole and roller group；And upper planar band
The screw hole of pit, every group of quantity are inversely proportional between 2~6, and with the quantity of roller group.Fig. 3 is common 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 installed therein, quantity are
4, accordingly to clamp drilling rod.
Claims (7)
1. a kind of enhanced synchronous rotary preventer, by bottom flange, packing element assembly, rotary inner casing, taper roll bearing, thrust ball
Bearing, fixing shell, pipe clamping device assembly and mating sealing element, fastener are formed；It is characterized in that：One packing element assembly (2),
Top is set in metal hanging ring (2-2) at the upper end step of rotary inner casing (3) centre bore, below comprising more elastic wire (2-
3) rubber cylinder (2-4) stretches out the lower face of rotary inner casing (3) centre bore；Rotary inner casing (3) is together under its outer circumference flange disk
One taper roll bearing (4) in face and a thrust ball bearing (5) above, by bottom flange (1), fixing shell (7), upper O
Type circle (10), seal washer (11), lower O-ring (13) and screw (12) radial-sealing are together；In packing element assembly (2) and rotation
Shell (3) protrudes the upper plane sum number root long screw (8) of fixing shell (7), the pipe clamping device assembly with a holding drill pipe with it
(9), be connected into one in the case where taper roll bearing (4) and thrust ball bearing (5) are helped, relative to bottom flange (1) and it is fixed outside
The community of shell (7) rotation.
2. enhanced synchronous rotary preventer according to claim 1, it is characterized in that：Packing element assembly (2), by O-shaped sealing
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-ring seal (2-1) in the twice groove of outer circle, in more uniformly distributed apertures of lower plane
Insert more aduncate elastic wires (2-3)；Upper coarse and lower fine rubber cylinder (2-4) by metal hanging ring (2-2) and owns
Elastic wire (2-3) contain it is integral.
3. enhanced synchronous rotary preventer according to claim 1, it is characterized in that：On the center of rotary inner casing (3) is
Small stepped hole under big；The periphery of rotary inner casing (3) is upper coarse and lower fine, and upper position has the flange of protrusion, has 4 screw threads on flange
Hole；The upper plane of rotary inner casing (3) is evenly distributed with 2~4 groups of tapped blind holes；The both ends outer circle of rotary inner casing (3), respectively with bottom method
Blue (1) and the top bar hole of fixing shell (7) are rotatably assorted.
4. enhanced synchronous rotary preventer according to claim 1, it is characterized in that：Fixing shell (7) is up-thin-low-thick
Hollow cylinder：On its outer on the thinner cylindrical wall in side, symmetrically processing respectively fills one there are two threaded hole in threaded hole
A lifting bolt (6)；It is machined with up-small and down-big stepped hole inside it, it is recessed to be machined with twice on smaller hole wall above
Slot is respectively arranged with O-ring (10) in slot；On it in plane, it is machined with 4 uniformly distributed threaded holes with pit；It is lower flat at it
On face, it is machined with uniformly distributed threaded hole.
5. enhanced synchronous rotary preventer according to claim 1, it is characterized in that：Pipe clamping device assembly (9) is by pipe clamping device
Housing (9-1), stop screw (9-3), roller shaft (9-4), mobile sliding block (9-5), end cap (9-6), drives curved tooth idler wheel (9-2)
Dynamic screw rod (9-7), nut (9-8), thrust ball bearing (9-9) and joint bolt (9-10) are formed；Each curved tooth idler wheel (9-
2), stop screw (9-3), roller shaft (9-4), mobile sliding block (9-5), end cap (9-6), driving screw rod (9-7), nut (9-8)
A roller group is formed with two thrust ball bearings (9-9), four joint bolts (9-10), is symmetrically mounted at pipe clamping device housing
In (9-1) uniformly distributed radial hole and the minor thread hole on periphery.
6. enhanced synchronous rotary preventer according to claim 5, it is characterized in that：In pipe clamping device assembly (9), card pipe
The blank of device housing (9-1) is a flat cylinder：Cylindrical hole is processed at its center, and plane machining has 2~4 screw threads thereon
Hole and 2~4 groups of screw holes with pit, side are machined with 2~4 uniformly distributed planes and radial hole, in each plane,
4 minor thread holes are machined with around radial hole.
7. enhanced synchronous rotary preventer according to claim 5, it is characterized in that：It puts down the side of pipe clamping device housing (9-1)
Face, radial hole and the roller group being installed therein, quantity are 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 CN106050182A (en) | 2016-10-26 |
| CN106050182B true CN106050182B (en) | 2018-06-12 |
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| 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 |
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Families Citing this family (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 |
| US20190234176A1 (en) * | 2018-01-26 | 2019-08-01 | National Oilwell Varco, L.P. | Pressure Control Devices for Sealing Around Tubular Members |
| 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 |
| 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 |
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|---|---|---|---|---|
| US4143881A (en) * | 1978-03-23 | 1979-03-13 | Dresser Industries, Inc. | Lubricant cooled rotary drill head seal |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7040394B2 (en) * | 2002-10-31 | 2006-05-09 | Weatherford/Lamb, Inc. | Active/passive seal rotating control head |
| US7237618B2 (en) * | 2004-02-20 | 2007-07-03 | Williams John R | Stripper rubber insert assembly |
-
2016
- 2016-06-27 CN CN201610524790.2A patent/CN106050182B/en active Active
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| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106050182A (en) | 2016-10-26 |
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