Invention Grant
US09562419B2 Downhole tools and methods for selectively accessing a tubular annulus of a wellbore
有权
用于选择性地进入井眼的管状环的井下工具和方法
- Patent Title: Downhole tools and methods for selectively accessing a tubular annulus of a wellbore
- Patent Title (中): 用于选择性地进入井眼的管状环的井下工具和方法
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Application No.: US14055206Application Date: 2013-10-16
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Publication No.: US09562419B2Publication Date: 2017-02-07
- Inventor: William Winfrid Fleckenstein , Todd Lance Flaska
- Applicant: Colorado School of Mines
- Applicant Address: US CO Golden
- Assignee: Colorado School of Mines
- Current Assignee: Colorado School of Mines
- Current Assignee Address: US CO Golden
- Agency: Sheridan Ross P.C.
- Main IPC: E21B34/08
- IPC: E21B34/08 ; E21B34/06 ; E21B43/16 ; E21B34/14 ; E21B43/14 ; E21B43/26 ; E21B34/00
Abstract:
A downhole tool that selectively opens and closes an axial/lateral bore of a tubular string positioned in a wellbore used to produce hydrocarbons or other fluids. When integrated into a tubular string, the downhole tool allows individual producing zones within a wellbore to be isolated between stimulation stages while simultaneously allowing a selected formation to be accessed. The downhole tools and methods can be used in vertical or directional wells, and additionally in cased or open-hole wellbores.
Public/Granted literature
- US20140041876A1 Downhole Tools and Methods for Selectively Accessing a Tubular Annulus of a Wellbore Public/Granted day:2014-02-13
Information query
