Adjustment and Application of Well Test Interpretation in The Development of W-zone of Ji Plateau Oilfield

Abstract

Oilfield development well test is an important means to correctly understand the reservoir and improve the recovery rate, which is of great significance in slowing down the decreasing production of the oilfield and formulating an effective development plan. [1] Jiyuan oilfield W area of ultra-low permeability reservoir production accounted for a large proportion of the (52.1%), After the reservoir enters into the middle water content period, the contradiction of water-driven development is highlighted, and the difficulty of effective and stable production is increased, in order to achieve the whole process management of the development of the research area, and to enhance and improve the effect of reservoir development, By analyzing the test well interpretation results in the past three years and classifying the test well curves statistically with the actual field conditions, the test well interpretation model is optimized; at the same time, the multi-interpretation of the test well interpretation results is systematically analyzed, the causes of multi-interpretation are analyzed, and the test well interpretation model suitable for the ultra-low permeability reservoir is preferred, and ultimately, in conjunction with the history of the development of the reservoir, the dynamics of the reservoir is combined with the data from the secondary interpretation of the test wells to deepen the understanding of the dynamics of the reservoir. [2].