Bisn Tec Ltd.

Bisn Tes Ltd.

Bobby Chancellor

Didhiti Talapatra

Paul Carragher

Billy Clark

Matthew Naylor

Bryon Mullen

The present invention provides a downhole heating tool with an increased heating capacity for use in setting alloy plugs/seal in downhole target regions of wellbores, such as oil/gas wells. The increased heating capacity enables greater quantities of alloy to be melted in one operation. It also enables alloys with higher melting points to be melted in the downhole environment. To this end the heating tool comprises a plurality of discrete tubular heating units linked together by connection means that permit the movement of the tubular heating units relative to one another. The relative freedom of movement between the heating units facilitates a transition between a deployment configuration, in which the heating tool is optimised for deployment downhole, and a heating configuration, in which the heating tool adopts an expanded heating footprint within a downhole target region.

Downhole heating tools with increased heating capacity and associated tools and methods

A gas-actuated dump bailer tool that can be opened/closed under the direct or indirect action of gas generated by a gas-generating chemical reaction mixture housed within the dump bailer. Additionally, a downhole tool assembly that employs the dump bailer together associated methods of using the dump bailer downhole in an oil/gas well.

Gas-actuated dump bailer

Growing community of inventors

Houston, TX, United States of America

Bobby Chancellor