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Prediction Technologies of Weathering Crust and Fracture Reservoirs in Tazhong Area

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  • Northwest Branch of PetroChina Research Institute of Petroleum Exploration and Development,Lanzhou 730020,China

Received date: 2011-03-08

  Revised date: 2011-06-11

  Online published: 2011-10-10

Abstract

Fracture is a key facter to improve the property and connectivity of carbonate reservoir, how to optimize the prediction technologies of fractures is an important work.We used the integrated seismic fracture detection technology to predict the weathering crust and fracture reservoir in the Tazhong area and contrasted with the predictive results.The results predicted by the technologies are provably identical with the drilling data. More ineffective fractures may be identified by curvature analysis.The fracture directions predicted by coherence technology are consistent with the fault strikes.The paleo\|stress field analytical method is mainly suitable for the prediction of developing trend of faults and fractures.The prestack AVO gradient method has a good effect in the prediction of fracture belts around large faults and brim of karst fracture-cave body.

Cite this article

Wang Zhen-Qing, WANG Hong-Bin, ZHANG Hu-Quan, LI Chuang, ZHANG Ji-Juan . Prediction Technologies of Weathering Crust and Fracture Reservoirs in Tazhong Area[J]. Natural Gas Geoscience, 2011 , 22(5) : 889 -893 . DOI: 10.11764/j.issn.1672-1926.2011.05.889

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