Invention Grant
- Patent Title: Water sensitive variable counterweight device driven by osmosis
- Patent Title (中): 通过渗透驱动的水敏变量配重设备
-
Application No.: US12050583Application Date: 2008-03-18
-
Publication No.: US08839849B2Publication Date: 2014-09-23
- Inventor: Randall V. Guest , Stephen L. Crow , Martin P. Coronado
- Applicant: Randall V. Guest , Stephen L. Crow , Martin P. Coronado
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Mossman, Kumar & Tyler PC
- Main IPC: E21B33/12
- IPC: E21B33/12 ; E21B33/124 ; E21B43/32 ; E21B43/08 ; E21B34/08 ; E21B43/12 ; E21B43/14

Abstract:
A method for producing fluid from a subterranean formation includes configuring a body to at least partially fill with a selected fluid; and actuating a flow restriction element using the body. The selected fluid may be water. An apparatus for controlling flow of a fluid into a wellbore tubular may include a selectively buoyant body, and a flow restriction element responsive to a movement of the selectively buoyant body. The selectively buoyant body includes a membrane configured to block a flow of hydrocarbons into the selectively buoyant body. The flow restriction element may include a flapper, a sliding sleeve, and a poppet valve. The body may be at least partially filled with a permeable material, which includes, but is not limited to, open-cell foam, reticulated metal foam, shaped sintered powder and capillary tubes.
Public/Granted literature
- US20090236102A1 WATER SENSITIVE VARIABLE COUNTERWEIGHT DEVICE DRIVEN BY OSMOSIS Public/Granted day:2009-09-24
Information query