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钻头是破碎岩石的主要工具,因它而引起的工程事故在钻井中比例较大,及时监测、预报钻头异常现象是避免钻具事故发生的有效措施,综合录井技术在现场的应用,为工程预报创造了有利条件。但对于综合录井监测参数变化无明显规律的钻头异常,监测人员是难以判别的,合理利用综合录井监测参数,有效地结合地质、气测上变化,综合判断是本文将要阐述的内容。通过剖析近几年来在大庆探区成功预报的实例,为现场工程预报工作提供了借鉴。
Drill bit is the main tool for rock crushing. Because of its large proportion of engineering accidents caused by drilling, the timely monitoring and forecasting of bit anomalies is an effective measure to avoid the occurrence of drilling accidents. The application of comprehensive mud logging technology on site, Forecasts have created favorable conditions. However, there is no obvious drill bit anomaly for the change of monitoring parameters of comprehensive logging, so it is difficult for monitoring personnel to judge. It is necessary to rationally make use of monitoring parameters of comprehensive logging to effectively combine the changes in geology and gas measurement. The comprehensive judgment is the content to be elaborated in this article. By analyzing the successful forecasting examples in the Daqing exploration area in recent years, it provides a reference for the on-site engineering forecast.