大庆深层涡轮钻井匹配钻头相关技术研究与应用

Research on the Matching Bit Technology for Deep Well Turbodrilling in Daqing and the Application

摘要:

为提高大庆深层致密砂砾岩气藏勘探效益，缩短钻井周期，降低钻井投资，开展了深层涡轮钻井提速技术研究。首先，依据涡轮钻井技术的工作原理，进行优选匹配钻头等相关技术的研究，通过先导性试验，确定了匹配钻头；其次，综合考虑现场施工条件，开展钻具组合等配套技术的研究。最终形成了大庆深层涡轮钻井的提速技术，并在达深15井成功实施，创造了庆深气田提速新纪录，为深层天然气藏的勘探开发提供了新的技术手段。

Abstract:

In order to improve the exploration benefit of deep compacted sandstone gas reservoir, shorten the drilling cycle and lower the drilling investment in Daqing, the research has been carried out on drilling speed increase for turbodrilling technology. Firstly, based on the working principle of turbodrilling, the matching bit optimization is studied, the matching bit is determined by the pilot test; then considering the site construction conditions, the matching technologies of BHA is studied to form the improved drilling technology for deep well turbodrilling in Daqing, this technology has been proved successful in Dashen well 15, and a new record of ROP in Qingshen gas field generated, which provided new technical means for the drilling and exploration of deep natural gas reservoir.