Patents, Drain Hole Technology, Drain Hole Concepts

MAURER ENGINEERING INC (MEI) was founded in 1974 by Dr. William Maurer in Houston, TX to provide advanced drilling engineering services to the petroleum industry. The company initially did mainly consulting work on advanced drilling tools and technology for oilfield service companies and the US Department of Energy.



Well Plans, Field Engineers, Field Supervision

Signa Engineering is a licensed petroleum engineering company based in Houston Texas, founded in 1992 by Charles R. “Rick” Stone, a pioneer in UBD.

Signa provides full-cycle engineering solutions for all phases of upstream energy projects, which provides maximum efficiency across the board. We evaluate prospects, design the optimal application, then provide onsite consultants to ensure the plans are executed properly.

Signa has assisted hundreds of operators around the globe, from shallow shale wells to deepwater applications. We have extensive experience in MPD, UBD, and casing drilling, as well as conventional operations, workover, horizontal/multilateral drilling and surface equipment design.


These companies can assist operators on a consulting basis.