The Reservoir Engineer Research On Extra-heavy Oil In The East Of Block Shan-6 Of Shengli Oilfield

The main purpose of the paper is to set up a three-dimensional reservoir geologic model in line with the actual underground case by making the research on the reservoir geologic characteristics of the east of Block Shan-6 which produces the extra-heavy oil. Basing on the model, optimized study on different well array is carried out aims to improve the exploitative effectiveness and economic effect of extra-heavy oil reservoir produced by injecting steam.Most of the heavy oil reservoirs in Shengli oilfield have entered into the later stage of Huff and Puff.The exploitative effectiveness worsen acute.The output decline rate quicken.The author establish the statistic model of sub-Ng oil measures in the east of Block Shan-6 by comprehensive applying multiple discipltnes.It provides reliable geologic reference for petroleum reservoir engineering on the east of Block Shan-6.It is evaluated that the block suit to exploit with the cyclic steam stimulation and steam drive.The study optimize schemes by earring out individual well history matching.The author also carried out the study on different well array with the cyclic steam stimulation and steam drive in the cast of Block Shan-6.It ascertain the well patern and well space, the optimal development fashion and the optimal opportunity of transforming to steam drive to get the optimal economic effect for this kind of reservoir.