随钻数据微存储器井下释放传输系统关键技术研究  

Research on Key Technology for While-drilling Data ReleasingTransmission System by Micro-chip Memories

作　　者：李继博 倪卫宁[1,2] 曾义金 LI Jibo;NI Weining;ZENG Yijin(State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 100101, China;Research Institute of Petroleum Engineering Technology, SINOPEC, Beijing 100101, China)

机构地区：[1]页岩油气富集机理与有效开发国家重点实验室,北京100101 [2]中国石化石油工程技术研究院,北京100101

出　　处：《石油矿场机械》2020年第6期12-15,共4页Oil Field Equipment

基　　金：国家科技重大专项“低渗透油气藏高效开发钻完井技术”(2016ZX05021)部分研究内容。

摘　　要：泥浆脉冲、电磁波等随钻数据传输方式难以实现井底大数据量的上传,不能充分满足随钻测井和地质导向对随钻测量数据的需求。介绍了一种通过井下释放大容量存储器的方式,实现井下大数据量上传的系统。在入井前将一定数量微型存储器安置在释放短节腔体内,根据井下随钻测量情况把测量数据注入微型存储器,定时或不定时地向环空释放,通过泥浆循环把存储器带回地面。为了拓展存储器的数据容量,设计了无线充电大容量存储器,该存储器内置了微处理器,可以直接从释放短节的读写器发射的无线信号获取电能,并给微处理器供电。地面系统可以按照协议读写存储器,实现了大量随钻测量数据的传输。Mud pulser and electromagnetic waves data transmission technology cannot achieve a large amount of data uploading in downhole,and cannot fully meet the LWD data transmission and geosteering service requirement.A while-drilling data transmission system through micro-chip memory downhole releasing was introduced.A certain number of micro-memory is placed in the release sub-cavity,and the measurement data is injected into the micro-memory according to the downhole measurement while drilling,and then is released to annulus regularly or irregularly,so the memories is brought back to the surface through mud circulation.In order to expand the data capacity,a wireless charging high capacity memory with microprocessor was designed,the power of which was transmitted through wireless reader.The surface system can read the memories according to the agreement,so the LWD data was transmitted to ground.

关 键 词：随钻传输 大容量 井下释放 微存储器 

分 类 号：TE927[石油与天然气工程—石油机械设备]