The objective of the project is to develop, prototype, and test a robust multi-component sensor that combines Fiber Optic and Micro-Electro Mechanical System (MEMS) technologies for use in a borehole seismic array.
Paulsson Geophysical Services, Inc., Brea, CA
Optiphase, Inc., Van Nuys, CA
Micralyne, Inc., Edmonton, AB, Canada
Davidson Instruments, The Woodlands, TX
|Array of fiber optic MEMS pressure sensors mounted inside a stainless steel housing|
This project addresses the challenge of imaging deep and complex gas reservoirs. Surface seismic imaging is the industry standard, but it does not provide sufficiently detailed images of complex or deep reservoir targets. Borehole seismic imaging can improve image resolution, but specialized sensors are needed to withstand the pressure and temperature conditions encountered in deep wells. Combining fiber optic and MEMS technologies enables a dramatic increase in the number of sensors that can be deployed simultaneously in a borehole seismic array.
The aim of this project is to develop a sensor that can be used in borehole seismic systems designed for deep wells. By combining the fiber optic and MEMS technologies, the resulting sensor should be able to withstand 350?400 °F and 15,000?25,000 psi, sustaining its reliability in both shallow and deep wells.
Current Status (February 2008)
Optiphase has outlined the fiber optic system. Optiphase analyzes, procures and characterizes vendor and hardward components.
The project is complete. The final report [PDF-2.43MB] is now available.
The project was awarded in October 2004 under NETL?s Deep Trek program, which is designed to improve the economics of high-pressure, high-temperature wells.
Project Start: October 1, 2004
Project End: December 31, 2007
DOE Contribution: $1,204,538
Performer Contribution: $1,204,538
NETL ? Frances Toro (firstname.lastname@example.org or 304-285-4107)
Paulsson Geophysical Services, Inc. – Paulsson, Bjorn (email@example.com or 562-697-9711, x101)
Final Report [PDF-2.43MB]