Lianhua Reservoir Precise Description In Leijia Area

Lianhua reservoir in Leijia area,Liaohe Oilfield is a complex fault block thin oil reservoir with edge-bottom water sandstone, has been in development, rely mainly on the exploitation of natural energy.With the gradual expansion of the scale mining,it has become increasingly exposed some problems of reservoir broken structure, lithology changes extremely, complex water-oil relations and so on. The author of this article synthetically applyed modern sequence stratigraphy, structure geology, sedimentology, and hydrocarbon reservoir geology and reservoir engineering, combined with drilling data, mud logging data, logging data, as well as 3D seismic data and other informations,The author depth researched about the Lianhua reservoir in Leijia area of structure characteristics, sedimentary characteristics, reservoir characteristics, as well as water-oil relations, and established odigital reservoir of three-dimensional geological model. Through detailed reservoir description, cleared Lianhua reservoir in Leijia area insider, and puted forward well-net of recommendations adjustment,and provided scientific basis for time of step water injection develops under that area.Results applied field effect is notable, the development of the programme deployed 12 wells,at present they already have been put into effect and put into operation, four old wells preferred lateral and potential, fault block washing development index was improved obviously , Daily oil production from 108t / d up to 317t / d, production rate rose from 2.98% to 4.24%, the composite aquifer decreased from 56.12% to 37.98%, stage of the cumulative oil production is 55.4×104t,It is predicted that the recovery ratio will be improve by 8%.At the same time, with deepening understanding of reservoir, reservoirfor the development of guidance and measures to adjust the potential,to increase recoverable reserves of 20×104t.