Invention Grant
- Patent Title: Low equivalent circulation density setting tool
- Patent Title (中): 低等效循环密度设定工具
-
Application No.: US14022200Application Date: 2013-09-09
-
Publication No.: US08826987B2Publication Date: 2014-09-09
- Inventor: Brock Watson , Daniel Moeller , Kevin J. Miller
- Applicant: Halliburton Energy Services, Inc.
- Applicant Address: US TX Houston
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US TX Houston
- Main IPC: E21B34/06
- IPC: E21B34/06
Abstract:
A downhole oilfield tool assembly comprises a mandrel, a ball valve oriented to block downwards flow through the mandrel in a closed position, a first piston located above the ball valve and at least partly around an outside of the mandrel. The first piston is configured to develop motive force from a pressure differential between an interior of the mandrel and an exterior of the downhole oilfield tool assembly.
Public/Granted literature
- US20140008080A1 Low Equivalent Circulation Density Setting Tool Public/Granted day:2014-01-09
Information query
