Key Technology for Exploration of Igneous Reservoirs in Liaohe Basin

Abstract

Abstract:

Igneous reservoir has become an important oil and gas exploration area in Liaohe Basin. Three unique items of key technology have been developed for exploration of igneous reservoirs on the basis of exploration study and practice in the past few years. (1) Technology for evaluation of igneous reservoirs determines the exploration direction. The Es3 formation in the main stage of basin development is the major stratum series of igneous oil and gas exploration. Near-source accumulation determines the main zones and belts for oil and gas exploration. The favorable lithology, lithofacies and fracturing transformation zones are the exploration target of effective reservoirs. (2) Technology for identification and prediction of igneous igneous rock body confirms exploration targets. Attributes – inversion joint seismic identification confirms the distribution scope of igneous rock body while igneous lithofacies seismic identification and description predicts the favorable distribution zone of lithofacies. Integrated geological-logging identification helps determine the type of igneous rock and identifies favorable reservoirs. (3) Technology for transformation of igneous reservoirs effectively improves producing reserves. The ^“large displacement, low sand ratio, high strength and multi-stage plug fracturing^” process for transformation of igneous reservoirs substantially improves productivity and ensures success rate of oil and gas exploration.

CLC Number:

Meng Weigong, Chen Zhenyan, Zhang Bin, Hu Yingjie, Zhang Ziming, Hui Yuting. Key Technology for Exploration of Igneous Reservoirs in Liaohe Basin[J]. China Petroleum Exploration, 2015, 20(3): 45-57.

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