Multidisciplinary Development Study On Lamadian Oilfield During High Water Cut Period

Lamadian oil field has come into specially high water cut period after 30year's developing. Now, the development problems lie in that the overall water cut is high, the employed extent of major reservoir and the depth of water-out zone is also high, residual oil distribution is highly dispersive, the invalidity and low-efficiency of water injection recycle is serious, plane contradiction and interlayer contradiction is prominent, the above problems and contradiction make oilfield's integrated adjustment and tapping potential become more difficult, and invested cost increase gradually every year, so conventional residual oil analyze and judgment method haven't been fit for the present situation of development. In order to explore the new way of development, and find the distribution characteristics of oilfield residual oil during the specially high water-cut period. We carry on multidisciplinary reservoir research and pilot tests. Multidisciplinary reservoir research has become an usual method in the West, and its key contents are fine reservoir description and the study of residual oil distribution. By means of carrying on fine geology research, setting up reservoir numerical simulations, economic evaluation, program design, and organically combining these study's results, we can get the more accurate reservoir descriptions, the fitter situation of oilfield development, and the highest economic benefits at the lowest cost. With the aim to get the best study and trial results, we choose the south of Lamadian oilfield as the region of multidisciplinary reservoir study, combine the multidisciplinary and multispeciality to research, and we explore a new way to integrated adjustment and tapping potential of specially high water cut block, at the same time, a new train of thought for modern reservoir study and management.