Patent ID: 9187994
Filing Date: 2015-11-17
Classification: E21B

Abstract:
1. An apparatus for fluid treatment of a borehole, the apparatus comprising: a tubular body having a long axis and an upper end, a first port opened through the wall of the tubular body, a second port opened through the wall of the tubular body, the second port axially offset from the first port and having a fluid inflow controller positioned to control the flow of fluid into the tubular body through the second port, a sliding sleeve valve in the tubular body moveable from (i) a first position closing the first port and the second port to (ii) a second position closing the second port and permitting fluid flow through the first port and to (iii) a third position closing the first port and permitting fluid flow through the second port; a sleeve actuator for actuating the sliding sleeve valve to move from the first position to the second position in response to a force applied thereto; a releasable lock for locking the sliding sleeve valve in the first second position and selected to maintain the sliding sleeve valve in the first second position after the force is removed; and a lock release mechanism configured to actuate the releasable lock to release the sliding sleeve valve to move into the third position.