Invention Grant
US07971646B2 Multi-position valve for fracturing and sand control and associated completion methods
有权
用于压裂和防砂的多位置阀门及相关的完井方法
- Patent Title: Multi-position valve for fracturing and sand control and associated completion methods
- Patent Title (中): 用于压裂和防砂的多位置阀门及相关的完井方法
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Application No.: US11840011Application Date: 2007-08-16
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Publication No.: US07971646B2Publication Date: 2011-07-05
- Inventor: Douglas J. Murray , Robert S. O'Brien , Peter J. Fay , Sean L. Gaudette
- Applicant: Douglas J. Murray , Robert S. O'Brien , Peter J. Fay , Sean L. Gaudette
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agent Steve Rosenblatt
- Main IPC: E21B43/26
- IPC: E21B43/26

Abstract:
A completion tubular is placed in position adjacent the zone or zones to be fractured and produced. It features preferably sliding sleeve valves that can assume at least two configurations: wide open and open with a screen material juxtaposed in the flow passage. In a preferred embodiment the valve assembly has three positions, adding a fully closed position to the other two mentioned. After run in, the valves can be put in the wide open position in any order desired to fracture. After fracturing, the valves can be closed or selectively be put in filtration position for production from the fractured zones in any desired order. Various ways are described to actuate the valves. The tubular can have telescoping pistons through which the fracturing can take place if the application calls for a cemented tubular. Alternatively, the tubular can be in open hole and simply have openings for passage of fracture fluid and external isolators to allow fracturing in any desired order.
Public/Granted literature
- US20090044944A1 Multi-Position Valve for Fracturing and Sand Control and Associated Completion Methods Public/Granted day:2009-02-19
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