VERY HIGH-SPEED DRILL STRING COMMUNICATIONS NETWORK

[摘要] Testing of recent upgrades to the drill pipe telemetry system in a 1000-ft vertical well has shown that the new system can achieve at least 1,000 ft passive transmission distance with sufficient bandwidth to accommodate a digital transmission rate of 2 Mbit/sec. Digitized data from a module at the bottom of the well has been successfully transmitted through the transmission line to the top of the well for a period of approximately one month. Manufacture of 30 prototype range 2 drill pipes has demonstrated greater simplicity of manufacturing and greater consistency of electrical characteristics from part to part, as compared to the first production run previously reported. Further work is needed to improve the high pressure capability of the system and to improve the robustness of the system in a high-vibration environment.

[发布日期] 2002-08-01 [发布机构] Novatek (United States)

[关键词] Testing;24 Power Transmission And Distribution;Power Transmission Lines;Telemetry;Communications