摘要
W6井是北部湾涠西区块的一口评价井,在W6井主要目的层涠洲组砂岩进行取心作业。由于前两次取心收获率低,此文分析该井涠洲组疏松砂岩取心难点及原因,从而对取心工具选型、取心参数优化、取心工艺措施等进行研究,提出适合该地层的取心参数、配套工具和工艺措施,在后续四次取心作业中得到应用,取心率均达98%以上,效果明显,为同类地层取心提供有效参考和借鉴。
Coring operation has been down recently in the sandstones of main objective Weizhou Formation in Well W6,an evaluation well located in Weixi block,Beibu Gulf.The coring recovery rate is low in the first two coring.In this paper,the difficulties in coring from unconsolidated sandstone in this well have been analyzed,and study has been conducted on coring tool selection,coring parameter optimization,and coring technic measures.These improvements are applied in the subsequent four operations and obvious results have been obtained,and coring recovery is over98%.The result provides helpful reference for coring in similar formations.
作者
王宏民
侯炼
苏志波
张忠强
贾凤龙
雷新超
WANG Hongmin;HOU Lian;SU Zhibo;ZHANG Zhongqiang;JIA Fenglong;LEI Xinchao(Offshore Petroleum Engineering Institute of SINOPEC Shanghai Offshore Oil and Gas Company, Shanghai 200120, China;Hunan Drilling Branch Company of SINOPEC Southwest Petroleum Engineering Co. Ltd, Changsha 410005, China;Drilling Company of SINOPEC Offshore Oilfield Services Company, Shanghai 201206, China;Engineering Technology Management Department of SINOPEC Shanghai Offshore Oil and Gas Company, Shanghai 200120, China)
出处
《海洋石油》
CAS
2017年第3期52-56,共5页
Offshore Oil
关键词
取心工艺
涠洲组
疏松砂岩
取心工具
收获率
Coring Technics
Weizhou Formation
unconsolidated sandstone
coring tool
rate of core recovery
