Shear Valve System And Methodology

摘要

A technique facilitates control of fluid flows in a wide variety of applications and environments, including downhole well environments. The technique utilizes a valve system which may include a shear seal valve for controlling fluid flows. The valve system utilizes port arrangements, components for energizing shear seals between mating components, and/or actuating components with improved degrees of freedom. The components facilitate repeatable and consistent actuation and operation of the valve system in the wide variety of applications and environments.

主权项

1. A system for use in a wellbore, comprising:
a downhole tool; and a valve cooperating with the downhole tool, the valve comprising:
a shear seal interface formed between a stationary component having a seal surface and a dynamic component having a shear seal contact surface slidably engaged with the seal surface;a plurality of ports positioned such that movement of the shear seal contact surface with respect to the seal surface controls flow between selected ports of the plurality of ports;a driving mechanism coupled to the dynamic component to selectively slide the shear seal contact surface with respect to the seal surface; anda non-helical, biasing mechanism positioned to engage the dynamic component and to bias the shear seal contact surface against the seal surface.