科钻一井先导孔扩孔技术  

Reaming Techniques for Pilot Hole in Kezuan 1 Well

作　　者：李传武[1] 李发东[1] 任海军[1] 和昔[1] 

机构地区：[1]中原石油勘探局钻井三公司,河南濮阳457001

出　　处：《石油钻探技术》2002年第5期7-9,共3页Petroleum Drilling Techniques

摘　　要：科钻一井先导孔由 15 7mm扩孔至 311mm,由于是全井段 (2 0 0 0 m)扩孔 ,而且地层硬度及研磨性均很大 ,导致施工难度较大 ,作业时间较长。在分析该井地层岩性的基础上 ,从扩孔钻头的选择、钻具组合的优选以及钻井液技术三方面详细论述了先导孔的扩孔钻进情况 ,并给出了在扩孔钻井过程中采取的工程技术措施及应注意的事项。Based on the analysis of petrophysical properties, reaming & drilling operations in the pilot hole are discussed in detail according to the selection of reaming bit and optimum selection of drilling assemblies and drilling fluids systems. Meanwhile it also puts forward some technical measures and notes during reaming & drilling operations.

关 键 词：科钻一井 先导孔扩孔技术 扩眼钻头 钻井参数 钻具组合 钻井液 

分 类 号：P634.5[天文地球—地质矿产勘探]