The bandwidth associated with conventional surface-seismic and VSP (vertical seismic profiling) techniques for imaging deep petroleum reservoirs is typically less than 150 Hz. With the advent of cross-well seismic techniques, the bandwidth is potentially increased well beyond 150 Hz due to the shorter propagation paths and the improved seismic coupling at depth. While conventional geophones are already the appropriate sensors for low-frequency, surface seismic applications, their performance degrade at the cross-well frequencies. The presence of tool resonance in the conventional well-locked geophones also results in distortion of the seismic signal at higher frequencies. To take advantage of the high-resolution capabilities of cross-well imaging, Sandia National Laboratory, Albuquerque, NM initiated research to develop high-resolution receivers using high-sensitivity, broad frequency, three component triaxial accelerometers. A single-station seismic receiver with advanced solid-state accelerometer having both high sensitivity and broad frequency response was fabricated and tested and subsequently, a 5-station multi-receiver array was developed and married to a fiber-optic wireline that allowed analysis of subsurface data in almost real time. The ability of the tool to withstand high borehole pressure and temperature conditions is important design features of the new tool. Extensive field tests conducted at the Texaco Humble Field Site in Houston, TX conclusively demonstrated the signal-enhancement characteristics (increased bandwidth and signal-to-noise-ratio) of the new tool. The accelerometer was shown to offer 25 dB signal-to-noise enhancement at 1000 Hz relative to the buried geophone. This major hardware development, done in close working relationship with OYO Geospace, Houston, Texas was later licensed and offered for sale.