油藏地球物理技术在东海C区块开发中的应用

Application of Reservoir Geophysical Technology in Offshore Block C Development in East China Sea

东海C区块钻井资料较少,开发层系少,主力层开发效果不理想,将油藏地球物理技术应用于东海C区块的开发评价和油气藏调整中,以改善区块的整体开发效果。针对新层系通过圈闭描述和含气性预测等地球物理技术,开展油气藏描述和潜力预测,实现新层系的增储上产和底水低幅油气藏高效动用;针对主力层采出程度低、产量低、含水高,以井震动结合,采用地震正演、地震相特征及地震属性等开展储层精细解剖的地球物理技术,指导了剩余油气分布预测及调整挖潜研究。油藏地球物理技术在东海C区块的开发评价和油气藏调整中均发挥了较好的作用,可为其他类似区块油气藏开发提供借鉴。

There are limited drilling data and few development layers in Block C of East China Sea,and the development effect of the main reservoir is not ideal.The application of reservoir geophysical technology in the development evaluation and adjustment of oil and gas reservoirs in Block C of East China Sea is aimed at improving the overall development effect of the block.For the new strata,reservoir description and potential prediction are carried out by means of geophysical techniques such as trap description and gas prediction,so as to realize the increase of reserves and production of new layers and the efficient production of low amplitude oil and gas reservoirs with low bottom water.In response to the low recovery rate,low production rate,and high water content of the main reservoir,geophysical techniques such as seismic forward modeling,seismic facies characteristics and seismic attributes were used to carry out fine reservoir analysis,guiding distribution prediction of remaining oil and gas and adjusting potential research.Reservoir geophysical technology plays a good role in the development evaluation and reservoir adjustment of Block C in East China Sea,which can provide reference for development of other similar blocks.