Other

Exxon Production Research Company

Welltech, Inc.

John David McLain

Lawrence F Angelo

Frank Allan Bryant

James D Howell

Robert William Beck

George Hayden Bruce

A noise generation device is taught which is used in conjunction with a shotgun generating a blast which has a) at least one chamber for receiving the blast from the barrel; b) a connecting bolts for joining the one chamber to the barrel; c) at least one exhaust port for venting the blast from the barrel; d) a channeling ramp for directing the blast towards the vent, and a blade and drive for pushing the device through a wall. It also includes various noise and blast generators which may be used to supplement the initial blast.

Battering ram with explosive discharge

This invention relates to apparatus for elevating a mobile workover rig to an elevated operating position proximate wellhead. It includes a portable platform arranged for positioning proximate the wellhead with the platform having a fixed generally horizontal upper surface portion for receiving and supporting the wheels of the rig thereon. It also includes ram means comprising two longitudinally aligned portions connected to the platform for forming an inclined ramp extending from the upper surface of the platform to the ground for moving the rig thereonto. It also includes means connected to the ramp means for raising at least one of the portions of the rig to an elevated generally horizontal position substantially the same height as the upper surface of the platform while wheels of the rig are supported thereon to thereby elevate and support the rig in the elevated operating position.

Apparatus for elevating a mobile rig

An improved method and apparatus for offshore drilling is described which is particularly useful for drilling in deep water from a floating surface vessel. Drilling fluid is introduced into a drill string extending from the vessel into a wellbore in the floor of the body of water. In order to maintain a controlled hydrostatic pressure within the riser, drilling fluids are diverted from the lower end of the riser and are either discharged into the body of water or pumped to the surface through a return conduit adjacent the riser.

Drilling fluid diverter system

Growing community of inventors

Houston, TX, United States of America

John David McLain