摘要
Abstract
This paper researches the development dynamic characteristics of the fractured-vuggy carbonate rock oil pool in Tarim. Through studying the carbonate reservoir in the Tarim oilfield, it is found that the main reservoir spaces are solution pores-cavities and fractures. Based on the seismic reflection characteristics, the types of the seismic reflection can be classified as five types, that is, shallow string beads reflection, deep string beads reflection, whole string beads reflection, flaky reflection, and jumble reflection. According to the production and seismic reflection characteristics in the Tarim oilfield, the paper analyzes the liquid production capability feature, production decline law, water-cut variation, water production type, and reservoir natural energy of this block. The result indicate that the yield of the field is mainly provided by the deep string beads reflection and whole string beads reflection, and that the production of the depletion type of exploitation from a single well decreases quickly and can not maintain stability. The water production types of the oil wells are slow and step ones. The structural location has a direct impact on the water production type, but the fast flood type is always on the structural edge, The whole natural energy of the field deficient, and only few wells have some natural energy which accords with the analytic results of the water type. The production status of the field is not good, and it needs to make a further research and adjust the development plan.关键词
塔里木油田/缝洞型碳酸盐岩油藏/递减规律/能量评价Key words
Tarim oilfield/ fractured-vuggy carbonate rock/ oil pool/ production decline law/ energy evaluation分类
能源科技
