Schlumberger Technology Corporation

James A Pramann, Ii

Patrick W Bixenman

Stephen L Jackson

Steven L Anyan

David R Mandeville

Raymond J Tibbles

Micah L Schutz

In one aspect, the invention may be a well completion including a production tubing, an upper packer connected to a lower end of the production tubing, an intelligent device disposed below the upper packer, a continuous control cable running from the intelligent device to a connection point, and a sand screen disposed below the packer. The completion may be installed in a well in a single trip, instead of multiple. Sand-control operations may be performed by a service tool that is deployed through the production tubing. The completion may include the ability to washdown the well as the completion is being run into place. Related methods are also provided.

Thru-tubing sand control method and apparatus

A method and apparatus for performing a gravel pack operation includes a bypass mechanism (e.g., a bypass valve) that is actuatable between plural positions. The bypass mechanism is part of a tool assembly, with the bypass mechanism providing different flow paths through the tool assembly corresponding to the plural positions of the bypass mechanism. For example, if the bypass mechanism is in a first position, an elevated pressure is communicated from an annular region outside a tool string to a target wellbore section. On the other hand, if the bypass mechanism is in the second position, the elevated pressure is communicated from inside the tool string to the target wellbore section. In either position, an overbalance condition is maintained in the target wellbore section so that swabbing effects are reduced or eliminated due to movement of the tool assembly during a gravel pack operation.

Method and apparatus for gravel packing with a pressure maintenance tool

A completion string for use in a wellbore includes a main conduit, such as a production tubing, and one or more alternate path conduits, such as shunt tubes, that extend generally in parallel with the main conduit. A flow control device is positioned in each alternate path conduit to control flow through the alternate path conduit. The one or more alternate path conduits may be adapted to carry gravel slurry to perform gravel packing operations. The one or more flow control devices in the one or more alternate path conduits may be actuated to the open position to allow communication of the gravel slurry to multiple zones in the wellbore. Once the gravel packing operation is completed, the one or more flow control devices may be actuated to the closed position to block fluid flow communication between multiple zones through the alternate path conduits during operation of the well. Other types of fluids may be communicated through the one or more alternate path conduits, such as fracturing fluids.

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Sugar Land, TX, United States of America

James A Pramann, Ii