Schlumberger Technology Corporation

Services Petroliers Schlumberger

Chao Wang

Abbigail Ullrich

Julien Bost

Quangen Du

Vincent Nicolas

Ganesh Balasubramanian

Weng Keong Tiong

Yushan Li

A well testing package is coupled to a well. A first fluid is produced from a first production zone of the well to the well testing package. The first fluid is returned to the well from the well testing package, and is injected into a second production zone of the well.

Systems and methods for well testing

An apparatus and method for using a pressure-powered tool to perform a downhole operation in a well determine the operating condition of the tool based on indications of pressure in a region associated with the tool. If the pressure indications are indicative of an undesired operating condition, corrective action is taken, such as mechanically shifting the tool or rupturing the rupture disc of an electric rupture disc (ERD) system to shift the tool to a desired operating condition.

Systems and techniques for controlling and monitoring downhole operations in a well

A system and method for providing redundancy in hydraulic circuits in multi-cycle hydraulic tools is described. The problems of dysfunctional hydraulic tool due to the failure of electromechanical actuators are addressed by providing redundant actuators and associated circuitry design.

System for implementing redundancy in hydraulic circuits and actuating multi-cycle hydraulic tools

A method can include selecting a ratio of a first effective cross-sectional area of a first component of a gas lift valve to a second effective cross-sectional area of a second component of the gas lift valve; charging a chamber of the gas lift valve; and positioning the gas lift valve in a pocket to expose the gas lift valve to a tubing pressure and a casing pressure, where transitioning of the gas lift valve from a closed state to an open state depends at least in part on the selected ratio. Various other apparatuses, systems, methods, etc., are also disclosed.

Growing community of inventors

Missouri City, TX, United States of America

Chao Wang