Baker Hughes Corporation

Western Atlas International, Inc.

Jose Rene Casarsa

Robert A Lester

Mathew G Schmidt

Paul G Junghans

James C Jackson

Jesse J Constantine, Jr

Gregory J Wilkinson

Donald J Hilliker

Neil E Peake

Les A Morrison

Jorn Andre Carlsen

Methods and apparatus are adapted for acquiring seismic data from an array of sensors deployed along a section of a deviated, including horizontal, wellbore for monitoring seismic and microseismic activity. The sensors may be permanently deployed in the wellbore.

System and method for acquiring seismic and micro-seismic data in deviated wellbores

A logging-tool assembly for generating both flexural wavefields and compressional wavefields in the sidewall formations encountered by a borehole. The assembly consists of a sonde constructed of a plurality of segments that are axially rotatable with respect to each other. Each one of two of the segments includes a compartment in which is mounted a dipole bender bar transmitting transducer. Two additional segments each contain one or more binaurally sensitive receiver transducers. Monopole transmitting and receiving transducers are also included in the respective appropriate segments. An acoustic isolator of novel construction acoustically separates the transmitting transducers from the receiving transducers.

Borehole logging tool

Growing community of inventors

Houston, TX, United States of America

Jose Rene Casarsa