Invention Grant
- Patent Title: Ball drop wellhead control apparatus
- Patent Title (中): 球落井口控制装置
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Application No.: US13331903Application Date: 2011-12-20
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Publication No.: US09010412B2Publication Date: 2015-04-21
- Inventor: Bob McGuire
- Applicant: Bob McGuire
- Applicant Address: US TX Houston
- Assignee: Oil States Energy Services, L.L.C.
- Current Assignee: Oil States Energy Services, L.L.C.
- Current Assignee Address: US TX Houston
- Agency: Nelson Mullins Riley & Scarborough, LLP
- Main IPC: E21B43/12
- IPC: E21B43/12 ; F16L55/46 ; E21B33/05
Abstract:
A ball drop wellhead control apparatus provides a ball controller between a frac ball drop or frac ball injector used to drop frac balls into a frac fluid stream being pumped into a subterranean well.
Public/Granted literature
- US20130153237A1 BALL DROP WELLHEAD CONTROL APPARATUS Public/Granted day:2013-06-20
Information query
