摘要
利用大量的测井新技术及钻井、试油等资料,在一个地质构造复杂、钻井施工极端困难地区同时进行了4口井的测井资料处理与分析,查清工区应力分布特征,计算岩石的各类强度参数,进而得出岩石的破裂压力、出砂指数等重要的井眼稳定性评价参数。研究结果表明,测井资料可以确定合理的井身结构及相应的钻井液比重范围;确定试油压裂设计、压裂缝波及高度预测;提供安全、合理的生产压差。在塔里木盆地的塔中、轮古等多口井的奥陶系应用该成果进行了压裂设计和压裂效果分析,取得了很好的经济效益。
A vast amount of information of drilling.testing and new logging technologies are used to analyze and process four wells logging data in extremely difficult drilling area with complex geologic structure, from which we have obtained geostress distribution features, rock mechanical and wellbore stability parameters including rock strength, fracturing pressure and sanding index, etc. The above studying results indicate the log data may be used for the following further applications ： reasonable mud safe windows and wellbore structure; fracturing design and fracture extend height prediction during testing; proper pressure drawdown for production. The above results are successful in fracturing design and fracturing effects in several wells of Tazong.Lungu area with O group in Tarim Basin.
出处
《测井技术》
CAS
CSCD
2006年第2期168-172,共5页
Well Logging Technology
关键词
测井新技术
井眼稳定性
弹性模量
地应力
孔隙压力
破裂压力
评价
advanced logging technology
wellbore stability
modulus
geostress
porous pressure
fracturing pressure
evaluation
