摘要
为了确保海上高温、高压井钻探成功,有必要利用随钻压力录井技术实时监测地层压力的变化。综合录井通常利用随钻工程参数并结合其他井况信息综合评价地层压力,其中主要是利用dc指数结合伊顿公式进行监测,而近年来利用随钻测井数据进行实时地层压力监测的方法也日趋成熟和完善,这两种方法均已经被应用于海上高温、高压井和深井的随钻地层压力监测。通过实例分析了海上高温、高压井随钻地层压力监测的发展过程。介绍了法国地质服务公司最新地层压力评价系统PreVue,并对其海上监测实例进行了分析介绍。阐述了目前地层压力录井所面临的一些难点,提出了初步的解决方法。
In order to ensure the success of offshore drilling the high temperature and high pressure wells,it is necessary to use mud logging technology to real-time monitor the changes of the formation pressure(HTHP) while drilling.The comprehensive mud logging technology often uses engineering parameters while drilling in combination with other well conditions′ information to comprehensively evaluate formation pressure.One major method is the dc index in combination with Eaton formula to monitor,while in recent years,the method of using MWD to carry out the formation pressure monitoring is becoming increasingly mature and perfect,both methods have been used for formation pressure monitoring while drilling in offshore HTHP wells and deep-wells.By referring the practical examples,the paper analyzed the developing process of the formation pressure monitoring while drilling for offshore HTHP wells.The author introduced the latest formation pressure evaluation system PreVue of France Geoservices Company,and its offshore surveillance cases were analyzed and introduced.The paper described that the current formation pressure logging faces some difficulties and the authors have made a preliminary solution.
出处
《录井工程》
2011年第3期42-46,91-92,共5页
Mud Logging Engineering
关键词
高温高压
地层压力
录井
监测
实例
PREVUE
high temperature and high pressure,formation pressure,monitor,practical example,PreVue
