Multi-stage blowout preventer and method of using same

(19)

(11)

EP 2 998 502 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	13.07.2016 Bulletin 2016/28

(43)	Date of publication A2:
	23.03.2016 Bulletin 2016/12

(21)	Application number: 14189874.2

(22)	Date of filing: 22.10.2014

(51)

International Patent Classification (IPC):

E21B 33/06^(2006.01)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME

(30)

Priority:

22.09.2014 US 201414492284

(71)	Applicant: ZP Interests, LLC
	Houston, TX 77069 (US)

(72)	Inventors:
	DeOcampo, Hernani G. Spring, TX Texas 77379 (US) Madell, Dean Busby, Alberta (CA) Lam, Dennis D. Houston, TX Texas 77040 (US)

(74)	Representative: Holzwarth-Rochford, Andreas
	Jones Day Nextower Thurn-und-Taxis-Platz 6 60313 Frankfurt am Main 60313 Frankfurt am Main (DE)

(54)	Multi-stage blowout preventer and method of using same

(57) A blowout preventer includes a housing, a ram block carrier which moves within the housing, and one or more ram blocks configured to be placed within the ram block carrier. The ram block carrier may include an opening, an upper shelf within the opening configured to hold an upper ram block, and a lower shelf within the opening configured to hold a lower ram block. The housing may include a central bore, cavities on both sides of the bore, and openings which allow ram blocks to access a pipe within the bore.

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