Invention Grant
US08770316B2 Method and apparatus for high pressure radial pulsed jetting of lateral passages from vertical to horizontal wellbores 有权
用于高压径向脉冲喷射从垂直井筒到水平井筒的侧向通道的方法和装置

Method and apparatus for high pressure radial pulsed jetting of lateral passages from vertical to horizontal wellbores
Abstract:
An apparatus and system that permits radial passages and lateral passages to be jetted into surrounding subsurface formation from existing or new wells. The system employs a casing cutting component that positionable by an anchored indexing device downhole to permit the formation of accurately positioned openings in the well casing. The system employs a passage jetting component employing extreme high jet fluid pressures and a method that allows for the downhole manipulation of the components so that the radial and lateral passages are achieved by minimum pulling work on casing, tubing or other components. The system is fully controllable and reduces dramatically the margins of error and failure that are inherent of the present day systems used for radial drilling.
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