Volcanic Rocks Reservoir Prediction Of Yingcheng Formation In Yuxi Area

Northern songliao basin in xujiaweizi fault depression, through early Mesozoic volcanics development work shows that the exploration of Mesozoic volcanics deep natural gas exploration has become the important reservoir, to reduce the risks, improve deep exploration exploration benefit, make full use of 3d seismic seismic data, conduct volcanic reservoir prediction research is of great significance. Therefore need comprehensive utilization earthquake, geology and logging multidisciplinary technology, research and formed a set of suitable for northern songliao basin of volcanic rock reservoirs deep description method for the volcanic rock reservoirs, the horizontal distribution of gas range volcanic fabric and provide new technology, prediction. This article will drilling and coring material, logging data, ground geological data and core chip material and seismic data fusion together, put forward for constraint deep reservoir recognition and earthquake volcanic rocks lithofacies, explain in mode. Summarizes using seismic profile reflective characteristic, horizontal slice, seismic inversion profile characteristics, earthquake attribute, seismic coherence characteristics and 3d visualization characteristics identification volcanic way and method. Adopt weathering degree analysis and lithofacies analysis, well constraint seismic inversion method, seismic attribute parameter analysis and seismic coherence, dip Angle and azimuth composite show analysis reservoir fracture development belt and the instantaneous attribute analysis phase space comprehensive description method of volcanic rock reservoirs, further improve the deep comprehensive description of volcanic rock reservoirs of precision; By structural minimal risk of hydrocarbon detection technology and seismic geology comprehensive evaluation technique of volcanic rock reservoirs of deep showings of comprehensive evaluation, further improve the deep gas of volcanic rock reservoirs including the accuracy of prediction. West region in elm deep main purpose layer of the yingcheng explain fire mountain 41, the main body of the area 408 km~2 (space fle area, who take one overlapping shorter lengths). Camp period of interpretation, each volcano subject 39 355 km~2 volcanic subject composite accumulative total area. In the area of the second explanation fire mountain 2 north-central 53.03 km2, area of volcanic monomer, and the fine description and the comprehensive earthquake geological evaluation. According to the basic elements, the hydrocarbon accumulation of matching relationships and space-time classifying the rock evaluation. One ofâ… favorable containing gas trap 15, the area 264.31 km~2;â…¡class favorable containing gas trap 13, the area 144.2 km~2;â…¢class favorable containing gas trap 10 km~2 67.1, area.