Title:
WELL BORE STIMULATION VALVE
Document Type and Number:
WIPO Patent Application WO/2014/210385
Kind Code:
A3
Abstract:
Stimulation valves for a well tubular having a cylindrical housing adapted for assembly into a tubular for a well. The valves have ports allowing fluid communication between a central conduit and the exterior of the housing and a valve body adapted for movement from a closed position to an open position allowing fluid communication through the ports. A ball seat is mounted in the valve conduit above the ports. The ball seat has an initial ball-catch state in which a ball may be received in the ball seat to move the valve body from its closed position to its open position. The ball seat is adapted to transition to a ball-pass state and release the ball as the valve body is moved to the open position. The ball seat remains in the ball-pass state after the transition from the ball- catch state.
Inventors:
HARRIS MICHAEL J (US)
ANTON KENNETH J (US)
ANTON KENNETH J (US)
Application Number:
PCT/US2014/044445
Publication Date:
April 30, 2015
Filing Date:
June 26, 2014
Export Citation:
Assignee:
TEAM OIL TOOLS LP (US)
International Classes:
E21B34/14
Foreign References:
| US5810084A | 1998-09-22 | |||
| US20130068475A1 | 2013-03-21 | |||
| US20110192607A1 | 2011-08-11 | |||
| US5375662A | 1994-12-27 | |||
| US20130153220A1 | 2013-06-20 |
Attorney, Agent or Firm:
WILLHELM, Keith, B. (Houston, TX, US)
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