检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:刘彪[1] 白彬珍[2] 潘丽娟[1] 牛丽霞[1] 樊艳芳[1]
机构地区:[1]中国石化西北油田分公司工程技术研究院,新疆乌鲁木齐830011 [2]中国石化石油工程技术研究院,北京100101
出 处:《石油钻探技术》2014年第4期48-52,共5页Petroleum Drilling Techniques
摘 要:为解决托甫台区块深井钻井过程中长裸眼穿过盐膏层时火成岩地层易漏、易塌及盐膏层易卡的问题,确保安全快速成井,将地应力分析软件Drillworks对测井资料的反演结果与实钻、测试资料结合,分析了托甫台区块地层的三压力剖面;利用巴西劈裂法与应力-应变试验评价了火成岩地层的强度;根据成像测井资料和电镜扫描结果分析了火成岩裂缝分布特征,分析了桥堵技术难以提高火成岩地层承压能力的原因。通过以上分析,确定了托甫台区块含盐膏层深井的3个必封点与1个风险点,并据此设计了"专封盐膏层"井身结构。实钻效果表明,"专封盐膏层"井身结构可以解决托甫台区块深井长裸眼钻穿盐膏层过程中的井漏、坍塌和卡钻等井下故障。In order to solve the problems of lost circulation and collapsing in the igneous rock and sticking in evaporite formation during drilling long open hole through evaporite bed in Tuofutai Block,optimization of casing program was carried out to ensure the safe and rapid drilling practices.By combining inversion results of Drillworks software with the practical field test data,the three pressure profiles of Tuofutai Block were analyzed.The strength of the igneous rock samples was assessed by using Brazilian test and stress-strain test.To determine the reason why the pressure sealing technology was difficult to improve bearing capacity of igneous rock formation,the fracture distribution of the igneous rock was researched by using imaging logging data and scanning electron microscopy techniques.Based on three positions that had to be sealed and one risk in deep evaporates bed that were determined according to the analysis of the above results,a special casing program for sealing evaporite bed was designed.Field application demonstrated that this new casing program could keep igneous rock and evaporite bed from downhole problems such as lost circulation,collapsing and sticking.
关 键 词:盐膏层 火成岩 井身结构 承压能力 堵漏 托甫台区块
分 类 号:TE22[石油与天然气工程—油气井工程]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.229