A Review of Telemetry Data Transmission in Unconventional Petroleum Environments Focused on Information Density and Reliability

The paper addresses a literature review of the technologies used in the transmission of measuring and logging data during well drilling. It presents a discussion about efficiency in data density transmission and reliability, especially when it comes to software and automated tools. Initially, this paper analyzes the principle of the telemetry systems, considering the mud pulse telemetry, acoustic telemetry, electromagnetic telemetry and wired drill pipe telemetry. They were detailed highlighting information about functionality, data transmission and its linkage to supporting software. Focus is also given to details of the main advantages and disadvantages of each technology considering the influences of lithology, drilling fluid and formation fluids in the reliability and capacity of data transmission.

国外钻井装备与技术新进展

介绍了国外最新的钻井装备与技术——新型钻机(Aecher模块化钻机、模块化海洋钻机、快速移动钻机和理想钻机),新型钻头(两级双径PDC钻头、新型混合式钻头、双倒角PDC切削齿Kymera^(TM)钻头、Pexus^(TM)混合式钻头、IRev^(TM)孕镶钻头和Stay Cool多维切削齿),新型MWD/LWD与无线遥测系统(XBATSM声波和超声波LWD、高温高压双加表MWD、集成方位伽马的新型LWD、Digi Scope连续波钻井液脉冲遥测系统和Twin双模式电磁遥测系统),新型井下振动测量工具(井下振动随钻测量系统和高频钻井动力学测量工具)。最后指出了我国钻井装备和技术与国外的差距,认为我国应把握世界钻井装备与技术的发展脉搏,调整和优化当前钻井装备与技术的研发方向,进一步拓展国际市场。