Company Filing History:
Years Active: 1987
Title: Innovations by Roger L Henderson
Introduction
Roger L Henderson is a notable inventor based in Bluefield, WV (US). He has made significant contributions to the field of subterranean drilling and methane drainage. With a total of 2 patents, his work has had a considerable impact on mining and drilling processes.
Latest Patents
Henderson's latest patents include a process for establishing a clear horizontal borehole in a subterranean formation. This innovative method involves drilling a generally horizontal borehole using a drill pipe, drill bit, and an uphole drilling device. The process also includes lubricating the drill bit and pipe by pumping mud down the center of the drill pipe to carry cuttings from the horizontal borehole. The total solids content of the efflux is adjusted to preselected levels and recirculated to create a borehole wall cake. After drilling, the drill bit and rod are removed, and a casing shoe is inserted to maintain a clear path through the borehole.
Another significant patent is for a production and grout liner for methane drainage in subterranean coal seams. This process seals a degas hole prior to mining by inserting a perforated liner and pumping grout down the center. The pressure forces grout through the perforations, ensuring a complete seal along the entire length of the degas hole. This method also aids in the extraction of methane gas before sealing, preventing sloughing or caving that could interfere with the sealing process.
Career Highlights
Henderson works at Methane Drainage Ventures, where he applies his expertise in drilling and methane management. His innovative approaches have enhanced safety and efficiency in mining operations.
Collaborations
He has collaborated with notable coworkers such as Walter L Richards and George N Aul, contributing to advancements in their field.
Conclusion
Roger L Henderson's contributions to subterranean drilling and methane drainage exemplify the importance of innovation in mining technology. His patents reflect a commitment to improving safety and efficiency in the industry.