The research and application of seismic prediction technology in burial hill around NP sag
Zhang Guo‐dong, Xing Wen‐jun, Tian Li‐hua · 2011
Paleozoic—Mesozoic burial hill reservoir is an important reservoir type around NP sag, Cambrian — Ordovician carbonatite is the major reservoir. In this area, Cambrian — Ordovician Carbonatite experienced multiple tectonic movement and denudation, and formed irregular reservoir space with varied pores, holes and seam. Thus the lateral heterogeneous and completed tectonics makes the reservoir predictions and descriptions are difficult. According to reservoir's characteristics in burial hill, seismic data was processed by pre-stack time migration with high-fidelity, high-signal-to-noise and high resolution. Then based on the precise tectonic seismic interpretation with combined well and seismic data and geological analysis, applied seismic attributer analysis, frequency-spectrum imaging and pre-stack inversion techniques, we established a carbonatite reservoir prediction flow chart. With the new carbonatite reservoir prediction techniques on the major explorating-developing reservoirs and favorable target areas, we achieved good results and economic benefits with the drill.