Development Mechanism Technology Of Lithologic Reservoir In Huangma Region

The domestic eastern H oil field,M oil field began to produce in the last century 80's.Due to structural complexity,reservoir complexity and other factors,water injection development unit of the two fields is in contradiction and development results were not good.And for the part of the well that can not form a well pattern,if only rely solely on natural energy mining,stratigraphic energy is low.In order to improve the degree of waterflooding control,the adaptability of oilfield well pattern and the development effect of oil field,in this paper,the characteristics of the reservoir and the characteristics of the early development of the Huangma block were studied to find out the problems that need to be solved.Then,through the stress sensitivity test,seepage test and seepage test of core reservoir,the seepage law of low permeability oilfield was researched in this paper.Based on the numerical simulation of the reservoir,the original geological reserves abstraction,the remaining movable energy abundance and the remaining oil saturation index were simulated to study the distribution of remaining oil in the Huangma block.In this paper,the influence of construction parameters such as well density and well spacing on development effect and economic benefit was studied.At the same time,the relationship between different pressure maintaining levels and development effect and economic benefit was researched.Finally,this paper established a reasonable comprehensive development technology scheme and adjusted the well pattern for deployment.The adjustment scheme has been implemented in the mine,and the effect has been achieved,showing that the selection of the scheme can improve the development effect of the fault block oil field.