A Comparison of Collapsing and Precise Arrival-Time Mapping of Microseismicity

A040 A Comparison of Collapsing and Precise Arrival- Time Mapping of Microseismicity J.T. Rutledge (Los Alamos National Laboratory New Mexico USA) & R.H. Jones* (Schlumberger Cambridge Research) SUMMARY In this paper we compare the improvements in microseismic location images obtained using precise arrival times with that obtained by the collapsing technique. We first collapse the initial locations for a hydraulic-fracture dataset from the Carthage Cotton Valley gas field. We then use the precise-arrival-time locations as measure for the effectiveness of the collapsing. Finally we examine the changes when applying collapsing to the precise-arrival-time locations. EAGE 69 th Conference & Exhibition