Allen R Petree

Title: Allen R. Petree: Innovator in Downhole Pump Technology

Introduction

Allen R. Petree is a notable inventor based in Casper, Wyoming. He has made significant contributions to the field of downhole pump technology, holding 2 patents that showcase his innovative approach to solving industry challenges. His work primarily focuses on methods that enhance the efficiency and effectiveness of fluid circulation in drilling operations.

Latest Patents

One of Petree's latest patents is the "Freeze-thaw method for temporarily plugging process flowline." This invention involves creating temporary plugs in process flowlines by injecting a plugging material with a freezing point slightly below the ambient temperature. The material is frozen in place, allowing for servicing operations on the flowline. Once the operation is complete, the plugging material can thaw naturally or be thawed using applied heat. Preferred materials for this method include linear primary alcohols and normal paraffinic hydrocarbons.

Another significant patent is the "Downhole circulation pump." This innovative pump is designed to circulate fluids downhole effectively. It features a rotor of a positive displacement pump that transmits torque from the upper drill string section to a tool at the lower end of the pump. Bow springs are utilized to prevent the stator portion of the pump from rotating within the wellbore. The positive displacement pump counterflows fluid up the interior of the drill string through a check valve into a settling chamber, where cuttings or other solids settle out before the fluid is pumped out through discharge ports.

Career Highlights

Allen R. Petree is currently employed at Conoco Inc., where he continues to develop and refine his innovative technologies. His work has had a substantial impact on the efficiency of drilling operations, making him a valuable asset to his company and the industry as a whole.

Collaborations

Throughout his career, Petree has collaborated with various professionals, including his coworker Lisa A. Cantu. These collaborations have fostered an environment of innovation and creativity, leading to advancements in their respective fields.

Conclusion

Allen R. Petree's contributions to downhole pump technology and fluid circulation methods demonstrate his commitment to innovation in the industry. His patents reflect a deep understanding of the challenges faced in drilling operations and provide effective solutions that enhance operational efficiency.