Boli Basin In The Western Depression Of Seismic Data Interpretation

Oil and gas supply is the guarantee of economic development, with the increasingly nervous energy, it is imperative to strengthen the exploration. In order to ensure the sustainable development of daqing oilfield, looking for the peripheral basin is one of the highlights of the current exploration of new reserves. Boli basin is one of the leading type sanjiang area larger residual basin, in order to achieve the tectonic framework of boli basin, sedimentary evolution and a greater understanding of the accumulation rule.Boli basin is one of the largest Mesozoic sedimentary basin, the east of heilongjiang province which includes in the western depression and the eastern depression two first-order tectonic units. Base made up of proterozoic and palaeozoic strata and hercynian granite, on the development of the Jurassic and cretaceous. Jurassic and cretaceous sedimentary period to rivers, large delta and lagoon～～bay and shallow lake facies and coastal swamp facies, continental lake basin, the delta plain facies appear alternately sediment is given priority to, complex structure and sedimentary conditions. Its structure contain large development potential, and the construction condition is difficult, processing and interpretation requirement will be increasing, need further including mountain low SNR region seismic exploration field acquisition, the processing methods of research and the study of the method to carry out comprehensive geophysical, geological and other work, high precision,2,3d seismic interpretation and coalbed methane exploration and development technology application and related research.The research purpose of this research is the interpretation of seismic data, the basement and above all the structure morphology, distribution regularity of reflector, fault development situation is analyzed, on the basis of accurate, reasonable structure interpretation, establish the tectonic framework, determined the changes of formation thickness, basal buried depth and the boundary of the western depression, combined with regional geological data, the characteristics of sedimentary facies, the main purpose of layer work area, reservoir and cap and their combination characteristics, resources potential assessment, optimizing favourable contain expected belt, predicting oil and gas prospects of trap and the favorable exploration targets, the beneficial Suggestions for further exploration in this area.