Invention Grant
- Patent Title: Multifunction blowout preventer
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Application No.: US16478061Application Date: 2018-01-12
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Publication No.: US11035198B2Publication Date: 2021-06-15
- Inventor: David McAdam , Brian McAdam , James Orr , Clark Weiss
- Applicant: DRECO ENERGY SERVICES ULC
- Applicant Address: CA Calgary
- Assignee: DRECO ENERGY SERVICES ULC
- Current Assignee: DRECO ENERGY SERVICES ULC
- Current Assignee Address: CA Calgary
- Agency: Schwegman Lundberg & Woessner, P.A.
- International Application: PCT/CA2018/050025 WO 20180112
- International Announcement: WO2018/129620 WO 20180719
- Main IPC: E21B34/02
- IPC: E21B34/02 ; E21B33/06

Abstract:
A multifunction blowout preventer has a housing formed from a single piece of material, which has a central bore, a bottom connection, a gate valve section, an integrated ram assembly/flow tee section, and a top connection. The blowout preventer optionally includes a gas lift/electrical ports section. The components of the blowout preventer are radially offset and/or staggered from one another about the periphery of the housing to help minimize the height of the blowout preventer.
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