US2246709A - Blowout preventer - Google Patents
Blowout preventer Download PDFInfo
- Publication number
- US2246709A US2246709A US291181A US29118139A US2246709A US 2246709 A US2246709 A US 2246709A US 291181 A US291181 A US 291181A US 29118139 A US29118139 A US 29118139A US 2246709 A US2246709 A US 2246709A
- Authority
- US
- United States
- Prior art keywords
- cage
- rubber
- ram
- packing
- blowout preventer
- 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.)
- Expired - Lifetime
Links
- 238000012856 packing Methods 0.000 description 13
- 238000010276 construction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000012858 resilient material Substances 0.000 description 2
- 244000182067 Fraxinus ornus Species 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Images
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
- E21B33/061—Ram-type blow-out preventers, e.g. with pivoting rams
- E21B33/062—Ram-type blow-out preventers, e.g. with pivoting rams with sliding rams
Definitions
- the invention relates to an improvement in blowout preventers and particularly a preventer of the type shown in the patent to W. D. Shaifer et al., 2,060,252, granted November 10, 1936.
- Another object of the invention is to provide a side bar or confining member for floating gate blowout preventer rams so that the resilient packing will be confined against lateral escape.
- Another object of the invention is to provide a side bar retaining member for blowout preventer rams.
- Fig. 1 is a top plan view of the gate members in closed position about a pipe.
- Fig. 2 is a front elevation of one of the gate members.
- Fig. 3 is a vertical sectional view illustrating the arrangement of the member as it is disposed inside of the housing.
- Fig. 4 is a perspective view of one of the cage members with the present invention applied thereto.
- blowout preventer housing is illustrated generally at 2 and includes oppositely extending ram chambers I and I; one of which projects laterally from each side of the opening I thru the housing.
- Each of these ram chambers 3 and l is closed at its outer end by a plate '0 which carries the spindle I by which the ram member 8 is moved.
- a plate '0 which carries the spindle I by which the ram member 8 is moved.
- Fig. 1 there are two spindles I, one on each side of the housing and by suitable connection they are arranged to move the ram members 0 toward and away from each other as the spindles are rotated.
- 'I'he ram member is shown in iront elevation in Fig. 2 and has a pocket Ill therein which is arranged to receive a cage l2.
- This cage is best seen in section in Fig. 3 and in perspective in Fig. 4 and is formed by two top and bottom plates ll. These plates are vertically spaced by the studs it so that they are held rigidly in position.
- a body ll of resilient material such as rubber. This rubber extends behind the cage i2 and abuts the rearfaee ilofthepocketillsothatasthe ram member I is moved forwardly by the spindie I, it will cause the rubber to move forwardly and the rubber in turn will carry the cage with it.
- top and bottom plates II are shown as being interfitting by having a tongue and groove arrangement 22 thereon.
- a reinforcing bar 25 has been positioned at each side of the cage and may be carried by either the cage or the rubber. It is preferably positioned as'shown in Fig. 4 being mounted upon the rubber packing ll at the edge thereof so that the bar will float with the rubber and confine the rubber against lateral extrusion when pressure is applied thereto.
- a blowout preventer having a housing and movable rams therein the combination of a resilient packing carried by the ram, a cage to reenforce said packing, and means to confine the packing at the sides thereof including a rigid vertical member at each edge of the cage.
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)
- Buffer Packaging (AREA)
Description
June 24, 1941. H ALLEN 2,246,709
BLOWOUT PREVENTER Filed Aug. 21, 1939 2 Sheet Sheet 1 ATTORNEYS.
June 24, 1941. ALLEN 2,246,709
BLOWOUT PREVENTER Filed Aug. 21, 1939 2 Sheets-Sheet 2 0 I2 5 22 f f \1 l l9 7 25 m1 2 l5 l4 k HERBERT ALLEN 1 QIjEVENTOR A T T ORNE Y5,
Patented June 24, 1941 S PATENT OFFICE BLOWOUT PREVENTER Herbert Allen, Houston, Tex, assignor to Cameron Iron Works, Houston, Tex.
Application August 21, 1939, Serial No. 291,181
Z Claims. (Cl. 251-159) The invention relates to an improvement in blowout preventers and particularly a preventer of the type shown in the patent to W. D. Shaifer et al., 2,060,252, granted November 10, 1936.
In the above noted Shaffer patent a general type of floating block gate ram for blowout preventers is disclosed and in this type of construction it has been found impossible to apply enormous pressure to the packing so as to close off the passage in the wellbore. The present invention directs itself to an improvement in this type of preventer whereby the packing may be completely confined in order to apply pressure thereto.
Another object of the invention is to provide a side bar or confining member for floating gate blowout preventer rams so that the resilient packing will be confined against lateral escape.
Another object of the invention is to provide a side bar retaining member for blowout preventer rams.
Other and further objects of the invention will be readily apparent when the following description is considered in connection with the accompanying drawings, wherein:
Fig. 1 is a top plan view of the gate members in closed position about a pipe.
Fig. 2 is a front elevation of one of the gate members.
Fig. 3 is a vertical sectional view illustrating the arrangement of the member as it is disposed inside of the housing.
Fig. 4 is a perspective view of one of the cage members with the present invention applied thereto.
In Fig. 3 the blowout preventer housing is illustrated generally at 2 and includes oppositely extending ram chambers I and I; one of which projects laterally from each side of the opening I thru the housing.
Each of these ram chambers 3 and l is closed at its outer end by a plate '0 which carries the spindle I by which the ram member 8 is moved. As seen in Fig. 1 there are two spindles I, one on each side of the housing and by suitable connection they are arranged to move the ram members 0 toward and away from each other as the spindles are rotated. 'I'he ram member is shown in iront elevation in Fig. 2 and has a pocket Ill therein which is arranged to receive a cage l2. This cage is best seen in section in Fig. 3 and in perspective in Fig. 4 and is formed by two top and bottom plates ll. These plates are vertically spaced by the studs it so that they are held rigidly in position. Disposed about the studs II and between the plates i! is a body ll of resilient material such as rubber. This rubber extends behind the cage i2 and abuts the rearfaee ilofthepocketillsothatasthe ram member I is moved forwardly by the spindie I, it will cause the rubber to move forwardly and the rubber in turn will carry the cage with it.
A shank and nut i9 extend rearwardly from the cage and pass thru the ram 8 so as to hold the cage and ram against displacement. The ram can slide relative to this shank in applying pressure to the rubber packing.
If suificient pressure is applied the face of the rubber is forced against the periphery of the pipe 2i with a view of forming a seal therewith. The top and bottom plates II are shown as being interfitting by having a tongue and groove arrangement 22 thereon.
In the construction shown in the Shaifer patcut as is evident from Fig. 2 thereof, there is no protection or support for the resilient material at the edges between edges of the rams, whereas,
in the present construction a reinforcing bar 25 has been positioned at each side of the cage and may be carried by either the cage or the rubber. It is preferably positioned as'shown in Fig. 4 being mounted upon the rubber packing ll at the edge thereof so that the bar will float with the rubber and confine the rubber against lateral extrusion when pressure is applied thereto.
As the two gate members move together, as seen in Fig. 1 there will be a space such as 21 between the forward edges of the rams 8 and the reinforcing bars 25 are shown as abutting each other at the edge when the two rams approach. In this manner it will be noted that the bars 25 cover the openings 21 between the rams and thereby prevent the escape of the rubber material. If sufiicient pressure is applied to the rubber then of course the ram 8 will move forwardly and tend to carry the plates M with it against the pipe 2!. If the face 20 of the rubber wears away a suflicient amount, then the plates Il may abut the pipe and in this way additional pressure may be applied when the rubber is entirely confined.
Side plates or bars 25 cooperate with the ram body 8, the plates II and the housing or ram chamber so as to confine the packing when it is subjected to pressure.
What is claimed is:
1. In a blowout preventer having a housing and movable rams therein the combination of a resilient packing carried by the ram, a cage to reenforce said packing, and means to confine the packing at the sides thereof including a rigid vertical member at each edge of the cage.
2. In a blowout preventer cage and packing, means on said cage to confine the packing against vertical movement, and additional means on said cage to confine the packing against lateral escape when pressure is applied thereto, said last means including a rigid plate or bar floating in the packing at the vertical abutting edges.
HERBERT ALIEN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US291181A US2246709A (en) | 1939-08-21 | 1939-08-21 | Blowout preventer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US291181A US2246709A (en) | 1939-08-21 | 1939-08-21 | Blowout preventer |
Publications (1)
Publication Number | Publication Date |
---|---|
US2246709A true US2246709A (en) | 1941-06-24 |
Family
ID=23119228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US291181A Expired - Lifetime US2246709A (en) | 1939-08-21 | 1939-08-21 | Blowout preventer |
Country Status (1)
Country | Link |
---|---|
US (1) | US2246709A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2631609A (en) * | 1949-12-20 | 1953-03-17 | Jr Frank J Schweitzer | Protective packer blowout preventer assembly |
US3434729A (en) * | 1965-10-21 | 1969-03-25 | Shaffer Tool Works | Ram assembly |
US3897038A (en) * | 1973-01-22 | 1975-07-29 | Hydril Co | Blowout preventer with variable inside diameter |
US3897039A (en) * | 1971-10-20 | 1975-07-29 | Hydril Co | Variable inside diameter blowout preventer |
US3915426A (en) * | 1973-01-26 | 1975-10-28 | Hydril Co | Blowout preventer with variable inside diameter |
US3915424A (en) * | 1973-01-26 | 1975-10-28 | Hydril Co | Blowout preventer with variable inside diameter |
US3915425A (en) * | 1973-01-22 | 1975-10-28 | Hydril Co | Blowout preventer with variable inside diameter |
US3946806A (en) * | 1972-06-16 | 1976-03-30 | Cameron Iron Works, Inc. | Ram-type blowout preventer |
US4609773A (en) * | 1985-07-08 | 1986-09-02 | Northern Telecom Limited | Seal assembly |
US20050045323A1 (en) * | 2000-06-09 | 2005-03-03 | Oil Lift Technology Inc. | Pump drive head with stuffing box |
US20190264525A1 (en) * | 2013-06-14 | 2019-08-29 | Enovate Systems Limited | Well bore control system |
-
1939
- 1939-08-21 US US291181A patent/US2246709A/en not_active Expired - Lifetime
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2631609A (en) * | 1949-12-20 | 1953-03-17 | Jr Frank J Schweitzer | Protective packer blowout preventer assembly |
US3434729A (en) * | 1965-10-21 | 1969-03-25 | Shaffer Tool Works | Ram assembly |
US3897039A (en) * | 1971-10-20 | 1975-07-29 | Hydril Co | Variable inside diameter blowout preventer |
US3946806A (en) * | 1972-06-16 | 1976-03-30 | Cameron Iron Works, Inc. | Ram-type blowout preventer |
US3915425A (en) * | 1973-01-22 | 1975-10-28 | Hydril Co | Blowout preventer with variable inside diameter |
US3897038A (en) * | 1973-01-22 | 1975-07-29 | Hydril Co | Blowout preventer with variable inside diameter |
US3915424A (en) * | 1973-01-26 | 1975-10-28 | Hydril Co | Blowout preventer with variable inside diameter |
US3915426A (en) * | 1973-01-26 | 1975-10-28 | Hydril Co | Blowout preventer with variable inside diameter |
US4609773A (en) * | 1985-07-08 | 1986-09-02 | Northern Telecom Limited | Seal assembly |
US20050045323A1 (en) * | 2000-06-09 | 2005-03-03 | Oil Lift Technology Inc. | Pump drive head with stuffing box |
US9016362B2 (en) * | 2000-06-09 | 2015-04-28 | Oil Lift Technology Inc. | Polish rod locking clamp |
US9322238B2 (en) | 2000-06-09 | 2016-04-26 | Oil Lift Technology Inc. | Polish rod locking clamp |
US10087696B2 (en) | 2000-06-09 | 2018-10-02 | Oil Lift Technology Inc. | Polish rod locking clamp |
US20190264525A1 (en) * | 2013-06-14 | 2019-08-29 | Enovate Systems Limited | Well bore control system |
US10989010B2 (en) * | 2013-06-14 | 2021-04-27 | Enovate Systems Limited | Well bore control system |
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