Sarykumak油田浅层水平井钻井方案优化设计

Optimized Drilling Program Designing of Shallow Horizontal Well in Sarykumak Oilfield

哈萨克斯坦Sarykumak油田Sary-6断块的油藏埋深普遍较浅(325~375m),给水平井钻井方案设计带来较大困难。而且该区块目前还没有水平井钻井史。结合哈萨克斯坦Sarykumak油田Sary-6断块地质特点,首先对轨道设计、井身结构设计和钻具组合方式分别进行优选,然后进行组合式整体优选,给出了适宜该区块地质特点的钻井方案优化设计建议。

Reservoir of Sary-6structure is shallow in Sarykumak Oilfield in Kazakhstan,which brings greater difficulties for the designing of optimized drilling program.There was no horizontal well in this area before.Based on the feature of Sary-6Structure,the trajectary design,well structure design and BHA are optimized,and then complex combination of above designs is optimized.Proposals are given for the suitable optimized drilling program design in the area.