Weatherford/lamb, Inc.

Bj Services Company, U.s.a.

Tejas Associates, Inc.

Cecil G McGavern, Iii

Winfield M Sides

Jason Charles Mailand

Thomas G Hill, Jr

Jeffrey L Bolding

Adrian V Saran

Apparatus if provided for use in wells, particularly wells that have high-pressure and high-temperature conditions in the well. The shells of completion equipment that is required to withstand the rigorous conditions in such wells are increased in strength by laminate layers that are formed of materials having higher yield strength than the yield strength of materials that can be used in well fluids.

Laminate pressure containing body for a well tool

A kit for converting an existing wireline retrievable surface controlled subsurface safety valve () into a bypass passageway apparatus () allowing the injection of production-enhancing fluid into a wellbore while maintaining the operation of the closure member (). Bypass passageway () can extend between upper () and lower () adapters external to the existing wireline retrievable surface controlled subsurface safety valve () to allow fluid injection bypass thereof. Conversion kit can include a tubing string hanger to suspend a velocity tubing string (), a gas lift valve () for gas lift operations, a locking mandrel (), and/or a spacer tube ().

Method and apparatus for continuously injecting fluid in a wellbore while maintaining safety valve operation

The present invention is directed to a method and apparatus for providing a pathway for fluid communication through a tubing-retrievable subsurface safety valve (TRSSV). The method and apparatus are designed to be deployed within a hydrocarbon wellbore after the TRSSV has failed. The apparatus is a milling tool that is run into the wellbore and landed within the TRSSV. The milling tool comprises a housing system, a cutting system, a drive system, and an actuating system. In operation, the milling tool is landed within the housing of the TRSSV. Thereafter, the actuating system is initiated. The actuating system actuates the drive system, which in turn drives the cutting system. In one arrangement, the cutting system includes blades for shaving the pressure containing body of the TRSSV, thereby forming a pathway for fluid communication between a hydraulic fluid line and a bore of the safety valve.

Downhole milling machine and method of use

Growing community of inventors

Spring, TX, United States of America

Cecil G McGavern, Iii