浅层超稠油热采杜84-平28井设计与实钻技术

Design and Drilling Technology of Wells Du 84-Ping 28 for Thermal Production of Shallow Extra-Heavy Oil

曙一区杜84块是辽河油田超稠油难采储量中规模较大的具有代表性的区块,开发中存在注汽困难、生产周期短、油井作业频繁热损失大、地层普遍出砂、综合成本高、开采难度大等一系列问题。根据油藏生产动态和综合分析油藏地质参数,结合油藏特征及原井网开发状况,通过对杜84-平28井优化设计和精心组织施工,重点对施工中产生的主要问题进行分析,采取科学合理的技术措施,取得显著的开发效果。

Block Du 84 of Shu 1 district,Liaohe Oilfield,is a representational block,which has the hard-producing extra-heavy oil reserves with a larger size in Liaohe Oilfield.There are lots of difficulties during exploitation,such as gas injection difficulty,short production cycle,greater heat loss because of continual well operating,universal sand production in the formation,high overall cost,exploitation difficulty and so on.Based on the reservoir production performance and comprehensive geologic analysis of reservoir parameters combined with the reservoir features and the primary well network exploitation state,this paper mainly analyses some problems presented during operation.By means of optimizing design and careful organizing and operating on Well Du 84-Ping 28,and adopting scientific and rational measures,we have obtained obvious exploitation effects and have provided valued research clews and practical on-site experiences for the effective application of horizontal well technique on similar reservoirs.