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LOOK-AHEAD VSP WORKFLOW THAT USES A TIME AND DEPTH VARIANT Q TO REDUCE UNCERTAINTIES IN DEPTH ESTIMATION AHEAD OF A DRILLING BIT
LOOK-AHEAD VSP WORKFLOW THAT USES A TIME AND DEPTH VARIANT Q TO REDUCE UNCERTAINTIES IN DEPTH ESTIMATION AHEAD OF A DRILLING BIT
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机译:使用时间和深度变体Q的展望前方VSP工作流程,以减少钻孔前面的深度估计的不确定性
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摘要
Disclosed are methods, systems, and computer-readable medium to perform operations including: receiving seismic data acquired by at least one receiver of a geologic survey system configured to perform a geologic survey of a subterranean formation, wherein the seismic data is associated with reflected acoustic signals generated by at least one source of the geologic survey system; calculating a ground force signal by stacking the acoustic signals generated by the least one source; calculating, using the ground force signal, a time and depth variant quality factor (Q) of the subterranean formation; and compensating, based on the time and depth variant Q, attenuation in the seismic data.
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