EP0122708A2 - Ringförmiges Ausblasventil - Google Patents

Ringförmiges Ausblasventil Download PDF

Info

Publication number: EP0122708A2
Authority: EP; European Patent Office
Prior art keywords: packer; opening; annular; blowout preventer; plug
Prior art date: 1983-04-13
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

Application number

EP84301549A

Other languages

English (en)

French (fr)

Other versions

EP0122708A3 (en

EP0122708B1 (de

Inventor

Gary R. Schaeper

William M. Taylor

Bolie C. Williams Iii

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Cooper Industries LLC

Original Assignee

Cameron Iron Works Inc

Priority date (The priority date 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 date listed.)

1983-04-13

Filing date

1984-03-08

Publication date

1984-10-24

1984-03-08 Application filed by Cameron Iron Works Inc filed Critical Cameron Iron Works Inc

1984-03-08 Priority to AT84301549T priority Critical patent/ATE36578T1/de

1984-10-24 Publication of EP0122708A2 publication Critical patent/EP0122708A2/de

1985-05-15 Publication of EP0122708A3 publication Critical patent/EP0122708A3/en

1988-08-17 Application granted granted Critical

1988-08-17 Publication of EP0122708B1 publication Critical patent/EP0122708B1/de

Status Expired legal-status Critical Current

Links

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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

Definitions

the resilient packer of an annular blowout preventer can wear and be damaged.
Changing the packer in present annular blowout preventers requires the removal of the upper end connection plus other elements of the BOP stack which are above the annular preventer such as the bell nipple, stripper, or rotating head. To do this clearance must be provided between the rig floor substructure and the top of he BOP to allow the top to be lifted clear to provide access to the packer. This is very inconvenient in snubbing operations. Also the top portion of most present annular blowout preventers is large and heavy which reduces the clearance and increases the difficulty of replacing the packer.
U.S. Patent No. 2,154,955 discloses a well casing control valve having removable side plates allowing access for ram changes.
U.S. Patent No. 2,320,974 discloses a ram type blowout . preventer with. removable side plates for changing internal ram operating mechanisms and rams.
U.S. Patent.No. 2,592,197 discloses a ram type blowout preventer with side windows for each ram for insertion and removal of the rams with covers secured over the windows for each ram for insertion and removal of the rams with covers secured over the windows.
An improved annular blowout preventer having a body with a central bore therethrough, a split annular packer recess surrounding and opening onto the bore, an annular packer positioned in said recess, means for axially loading the packer, at least one opening through the side of the body into the packer recess of sufficient size for the removal of the packer therethrough, a plug removably positioned in the opening to close the opening and form the exterior of said packer recess, a ring surrounding said body to retain said plug in position in said opening and means supporting said ring in position surrounding said body and retaining said plug in said opening.
An object of the present invention is to provide an improved annular blowout preventer in which the annular packer may be changed without regard to the vertical clearance available.
Another object is to provide an improved annular blowout preventer having simple and easy means for changing the annular packer.
a further object is to provide an improved annular blowout preventer with a side access to the annular packer. without sacrificing the strength of the preventer body.
Annular blowout preventer 10 includes body 12 having central bore 14 extending therethrough with packer recess 16 surrounding and opening onto bore 14.
Body 12 includes lower flange 18, inner upstanding rim 20 and outer upstanding rim 22.
Upper end closure 24 is threaded into rim 22 and has depending rim 26 extending to a position between rims 20 and 22, and forming annular chamber 28.
Upper end closure 24 extends inward as flange 30 to proved shoulder 32-at the upper end of packer recess 16.
Annular packer 34 is positioned in packer recess 16 between shoulder 32 and annular actuating plate 36.
Means for axially loading annular packer 34 is provided by piston 38 which is slidable in chamber 28 responsive to pressure through port 38a and port 38b and connected to annular actuating plate 36 by annular arm 40.
Annular packer 34 includes resilient annulus 41 with upper insert plates 42 and lower insert plates 44 embedded therein. Annular packer 34 is split and preferably has two semi-annular sections 34a and 34b. as shown in FIGURE 2. Ring 46 is embedded in the exterior of resilient annulus 41 and has a plurality of tapped holes 48 to allow firm engagement of packer 34 during removal. Annular packer 34 is split as described and shown to allow it to be removed easily from recess 16 through opening 50 in rim 22 and depending rim 26 of end closure 24 as best seen in FIGURE 2.
Opening 50 includes inner rectangular opening 52 with shoulder 54 at its inner end and outer rectangular opening 56 with shoulder 58 facing outward at the inner end of opening 56.
Plug 60 is shaped to fit closely into opening 52 and 56, to engage shoulder 54 and capture seal ring 62 between shoulder 64 on plug 60 and shoulder 58.
the inner surface 66 of plug 60 is cylindrical to form a portion of the wall of recess 16.
Plug 60 is retained in opening 50 by sleeve 68 which surrounds outer rim 22 of body 12 from a position above opening 50 to a position below opening 50.
Suitable means for supporting sleeve 68 in its plug retaining position is provided in the form of lugs 70 secured to outer rim 22 by screws 72.
packer 34 Whenever it is desired to replace packer 34 then screws 72 are removed and sleeve 68 is lowered to the position shown in FIGURE 3 so that plug 60 can be removed. With plug 60 removed packer sections 34a and 34b can be removed even with a pipe extending through bore 14.
annular blowout preventer 80 includes outer rim 82 and depending rim 84 of end closure with inner rectangular opening 86 extending transversely thereof and outer rectangular openings 88 and 90 provide shoulders 92 and 94.
Plugs 96 and 98 are positioned therein and seal rings 100 and 102 are positioned between shoulders 104 and 106 on plugs 96 and 98 and shoulders 92 and 94.
Sleeve 108 surrounds rim 82 and retains plugs 96 and 98 in position sealing both ends of bore 86.
Packer 110 includes sections 112 and 114 and has ring 116 embedded therein with tapped holes 118 to assist in removal of packer sections 112 and 114 through opposite sides of bore 86 after plugs 96 and -98 are removed.

Landscapes

Geology (AREA)
Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Mining & Mineral Resources (AREA)
Geochemistry & Mineralogy (AREA)
Fluid Mechanics (AREA)
Environmental & Geological Engineering (AREA)
General Life Sciences & Earth Sciences (AREA)
Physics & Mathematics (AREA)
Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Pressure Vessels And Lids Thereof (AREA)
Closures For Containers (AREA)
Self-Closing Valves And Venting Or Aerating Valves (AREA)
Processing Of Meat And Fish (AREA)
Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

EP84301549A 1983-04-13 1984-03-08 Ringförmiges Ausblasventil Expired EP0122708B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT84301549T ATE36578T1 (de)	1983-04-13	1984-03-08	Ringfoermiges ausblasventil.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US48451283A	1983-04-13	1983-04-13
US484512		1983-04-13

Publications (3)

Publication Number	Publication Date
EP0122708A2 true EP0122708A2 (de)	1984-10-24
EP0122708A3 EP0122708A3 (en)	1985-05-15
EP0122708B1 EP0122708B1 (de)	1988-08-17

Family

ID=23924456

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP84301549A Expired EP0122708B1 (de)	1983-04-13	1984-03-08	Ringförmiges Ausblasventil

Country Status (5)

Country	Link
EP (1)	EP0122708B1 (de)
JP (1)	JPS59199989A (de)
AT (1)	ATE36578T1 (de)
DE (1)	DE3473489D1 (de)
SG (1)	SG19789G (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2347155A (en) *	1999-02-08	2000-08-30	Hydril Co	Packer insert for sealing on multiple items in a wellbore
US9938793B2 (en)	2015-11-24	2018-04-10	Freudenberg Oil & Gas, Llc	Spherical blow out preventer annular seal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2154955A (en) *	1937-02-02	1939-04-18	Kerotest Mfg Company	Well casing control valve
US2320974A (en) *	1941-08-18	1943-06-01	Macclatchie Mfg Company Of Cal	Blowout preventer
US2592197A (en) *	1947-10-27	1952-04-08	Jr Frank J Schweitzer	Side-plug hydraulic cellar gate
US3915425A (en) *	1973-01-22	1975-10-28	Hydril Co	Blowout preventer with variable inside diameter
US4310139A (en) *	1980-04-04	1982-01-12	Cameron Iron Works, Inc.	Annular blowout preventer

1984
- 1984-03-08 DE DE8484301549T patent/DE3473489D1/de not_active Expired
- 1984-03-08 EP EP84301549A patent/EP0122708B1/de not_active Expired
- 1984-03-08 AT AT84301549T patent/ATE36578T1/de active
- 1984-04-10 JP JP59071675A patent/JPS59199989A/ja active Granted
1989
- 1989-03-31 SG SG197/89A patent/SG19789G/en unknown

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2347155A (en) *	1999-02-08	2000-08-30	Hydril Co	Packer insert for sealing on multiple items in a wellbore
US6352120B1 (en)	1999-02-08	2002-03-05	Hydril Company	Packer insert for sealing on multiple items in the wellbore
GB2347155B (en) *	1999-02-08	2003-04-23	Hydril Co	Packer insert for sealing on multiple items in a wellbore
US9938793B2 (en)	2015-11-24	2018-04-10	Freudenberg Oil & Gas, Llc	Spherical blow out preventer annular seal

Also Published As

Publication number	Publication date
JPH0361834B2 (de)	1991-09-24
EP0122708A3 (en)	1985-05-15
DE3473489D1 (en)	1988-09-22
JPS59199989A (ja)	1984-11-13
EP0122708B1 (de)	1988-08-17
ATE36578T1 (de)	1988-09-15
SG19789G (en)	1989-09-01

Legal Events

Date	Code	Title	Description
1984-08-25	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1984-10-24	AK	Designated contracting states	Designated state(s): AT BE CH DE FR GB IT LI LU NL SE
1985-03-14	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1985-05-15	AK	Designated contracting states	Designated state(s): AT BE CH DE FR GB IT LI LU NL SE
1985-11-27	17P	Request for examination filed	Effective date: 19850916
1986-10-08	17Q	First examination report despatched	Effective date: 19860820
1987-08-12	D17Q	First examination report despatched (deleted)
1988-07-02	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1988-08-17	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE
1988-08-17	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Effective date: 19880817 Ref country code: LI Effective date: 19880817 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 19880817 Ref country code: CH Effective date: 19880817 Ref country code: BE Effective date: 19880817
1988-08-17	REF	Corresponds to:	Ref document number: 36578 Country of ref document: AT Date of ref document: 19880915 Kind code of ref document: T
1988-09-22	REF	Corresponds to:	Ref document number: 3473489 Country of ref document: DE Date of ref document: 19880922
1988-09-23	ET	Fr: translation filed
1988-11-30	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
1989-03-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19890331
1989-06-12	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1989-06-12	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1989-08-02	26N	No opposition filed
1991-02-22	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19910222 Year of fee payment: 8
1991-03-13	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: AT Payment date: 19910313 Year of fee payment: 8
1991-03-20	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19910320 Year of fee payment: 8
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1991-12-11	REG	Reference to a national code	Ref country code: GB Ref legal event code: 732
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1992-10-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19921001
1992-11-04	GBPC	Gb: european patent ceased through non-payment of renewal fee
1992-11-16	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee
1992-11-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19921130
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1993-01-29	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST

Publication	Publication Date	Title
US4579314A (en)	1986-04-01	Annular blowout preventer
US3272222A (en)	1966-09-13	Blowout preventer
US2304991A (en)	1942-12-15	Valve pot
EP0289108B1 (de)	1992-03-18	Bohrlochkopfaufhängung und -abdichtung
US4448255A (en)	1984-05-15	Rotary blowout preventer
US4488703A (en)	1984-12-18	Valve apparatus
US2731281A (en)	1956-01-17	Kelly packer and blowout preventer
US2927774A (en)	1960-03-08	Rotary seal
NO301387B1 (no)	1997-10-20	Brönnhodeanordning
SG19393G (en)	1993-04-16	Annular wellhead seal
EP0108895B1 (de)	1987-04-29	Ringförmiger Ausblasverhinderer
US4283039A (en)	1981-08-11	Annular blowout preventer with upper and lower spherical sealing surfaces
US4602794A (en)	1986-07-29	Annular blowout preventer with upper and lower spherical sealing surfaces and rigid translation element
US4095805A (en)	1978-06-20	Annular blowout preventer
US4346919A (en)	1982-08-31	Remote automatic make-up stab-in sealing system
US2751235A (en)	1956-06-19	Well head pipe suspension
US4402773A (en)	1983-09-06	Remote automatic make-up stab-in sealing system
US3489439A (en)	1970-01-13	Means for releasably latching members in a well installation
US2683046A (en)	1954-07-06	Pipe hanger and seal assembly
EP0122708B1 (de)	1988-08-17	Ringförmiges Ausblasventil
US4460150A (en)	1984-07-17	Annular blowout preventer
US4007905A (en)	1977-02-15	Retrievable blow-out preventer ram seals
US5333832A (en)	1994-08-02	Blowout preventer with removable packer
NO179593B (no)	1996-07-29	Höytrykks-tetningsanordning for tetning av et ringformet rom mellom to sylindriske flater
US1872498A (en)	1932-08-16	Blow-out preventer