中国南海深水录井技术难点、对策与发展思考

Technical Difficulties,Countermeasures and Development Thinking of Deepwater Comprehensive Well Logging in The South China Sea

自2013年以来,中海石油(中国)有限公司湛江分公司在琼东南盆地深水区成功钻探多口探井,积累了丰富的深水勘探作业经验,其中在地质录井方面从作业安全、低温钻井液脱气效率、工程监控、压力监测、钻井参数优化等方面进行了针对性研究,引进多项录井新技术,克服了深水录井的多项技术难题,初步形成了较完善的深水录井技术体系。本文重点介绍了深水区录井作业的技术难点与对策,并对今后深水录井技术发展方向进行了思考,指出深水录井需要加强科研投入和新技术引进,资料录取需由地面向地下、定性向定量方向发展,加强对测井、测试等多专业间信息共享利用,需适应深水油气勘探形势的需要,大力发展深水随钻录井技术,建立井场与基地指挥中心的远程平台一体化信息平台,精细化油气层评价方法,力促南海深水录井技术体系的进一步完善。

CNOOC China Ltd._Zhangjiang has drilled several exploration wells successfully in the Qiongdongnan Basin since 2013 and accumulated abundant experience in deep-water exploration operations. In terms of logging,purposeful researches has been done on operation safety,degasification efficiency,project monitoring,pressure surveillance,drilling efficiency and so on, so that multiple technical difficulties are overcome and a complete deep-water logging technique system are established. This article introduces the technical difficulties and countermeasures in deep-water logging,and some thinking for the development direction of deep-water well logging,indicating that more research investment,introduction of new technology,data collection from surface to subsurface,from qualitative to quantitative,utility of multi-specialty data,such as well logging and testing,development of logging while drilling technique to satisfy the requirement for exploration situation,integrated information platform combining drilling wellsite and office center,and exquisite hydrocarbon reservoir assessment technique is needed for the future development of deepwater logging.