摘要
近年来,随着南海东部海域勘探投入的持续加大,对井场调查的现场作业效率提出了更高的要求。该方法通过充分借鉴周边已有井场的资料,对位于勘探成熟区浅层地质灾害发生概率较小的半潜式井场,采用如稀疏模拟物探测线密度、削减海底表层取样数等方法优化作业设计方案,重点勘察井位中心附近的区域。应用结果表明:在井场有资料面积减少的情况下,该方法获得的物探数据仍可为半潜式钻井平台的安全作业提供可靠的地质评价资料,大幅度提升了井场调查作业的工作效率。
In recent years,the exploration investment in the eastern South China Sea continues to increase,and higher requirements have been placed on the efficiency of field operations in well site surveys.Based on the available well site investigation information in nearby regions,this method optimized the design plan of the semi-submersible well site investigation in mature exploration area where the probability of shallow layer geological hazards is low by using methods such as reducing the density of simulative geophysical survey line and the amount of the soil sample in seabed.And,the method focuses on surveying the area near the well center.The application results show that this method can still provide reliable geological information for the safe operation of the semi-submersible drilling platform when the data area of the well site is reduced,and greatly improve the efficiency of well site investigation work.
作者
龙黎
刘宾
刘铮
轩义华
薛志刚
孙永全
LONG Li;LIU Bin;LIU Zheng;XUAN Yihua;XUE Zhigang;SUN Yongquan(Shenzhen Branch of CNOOC Ltd.,Shenzhen Guangdong 518067,China)
出处
《海洋石油》
CAS
2021年第1期15-21,共7页
Offshore Oil
关键词
井场调查
半潜式井场
勘探成熟区
南海东部海域
well site investigation
semi-submersible well site
mature exploration area
eastern South China Sea
