哈萨克斯坦NB油田滚动勘探开发研究

Progressing Exploration and Development Research of NB Oilfield in Kazakhstan

哈萨克斯坦NB油田之前研究和开发目标主要集中在构造高部位,随着投入开发时间渐长,产量逐渐递减,油田外围的勘探开发日益受到重视。通过系统总结油田的油气地质特征,从外围老资料复查入手,依据新处理的三维地震资料,确定了外围主要勘探目的层和重点圈闭,明确了沉积微相类型和有利储集体分布特征,针对外围地区油气聚集的主控因素,利用多种软件联合解释,成功预测了有利储层展布,形成了薄砂体滚动勘探开发技术,并指导NB油田的滚动井位部署,取得了很好的勘探开发效果,对哈萨克斯坦其它油田的勘探开发也起到借鉴作用。

The previous research and development goal of NB oilfield in Kazakhstan was mainly focused on the high structure part. With increasing development time and decreasing production, exploration and development in oilfield periphery has received increasing attention. By systematically summarizing the oil and gas geologic characteristics of the oilfield, starting with the review of the old peripheral data, and based on the newly processed three-dimensional seismic data, the main exploration targets and key traps in the peripheral area are determined, the types of sedimentary microfacies and the distribution characteristics of favorable reservoirs are defined, and various soft reservoirs are utilized to control the oil and gas accumulation in the peripheral area. Joint interpretation successfully predicted favorable reservoir distribution, formed rolling exploration and development technology of thin sand body, and guided rolling well location deployment of NB oilfield, achieved good exploration and development results, and also played a reference role for exploration and development of other oilfields in Kazakhstan.