测斜仪监测技术在地热井压裂中的应用研究及实践
投稿时间:2020-07-23  修订日期:2020-12-04  点此下载全文
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作者单位邮编
徐胜强 中国石油化工股份有限公司石油工程技术研究院 100029
张旭东 中国石油化工股份有限公司石油工程技术研究院 100029
张保平 中国石油化工股份有限公司石油工程技术研究院 100029
周健 中国石油化工股份有限公司石油工程技术研究院 100029
基金项目:国家重点研发计划课题“压裂监测与人工裂缝网络评价(编号:2018YFB1501803)”部分研究内容
中文摘要:我国地热能源丰富,开发地热能对缓解我国能源对外依存度大的局面很有必要,地热能开发利用前景广阔。测斜仪压裂监测技术,目前在油气开发中获得了广泛的应用,可以监测裂缝发育形态,尤其擅长监测裂缝延伸方向,对指导井网布置、压裂工艺及施工规模具有重要的指导作用。青海共和盆地的X1井岩性致密坚硬、施工不确定因素多、施工排量小是监测难点,同时X1是国内干热岩井首次压裂,利用测斜仪压裂监测技术监测地热井改造施工也是全世界范围内首次,X1井压裂监测的成功实施探索了丰富了地热井压裂监测方法,拓宽了测斜仪监测的应用范围,监测施工获取了X1井压裂裂缝的重要参数,为该区井网布置提供了基础数据,为测斜仪监测施工提供了重要借鉴实例。
中文关键词:地热  水力压裂  测斜仪  裂缝监测
 
Application and practice of Tiltmeter monitoring technology in geothermal well fracturing
Abstract:China is rich in geothermal energy, so it is necessary to develop geothermal energy to alleviate the situation of large external dependence of energy in China, and the prospect of geothermal energy development and utilization is broad. The fracturing monitoring technology of inclinometer has been widely used in oil and gas development, which can monitor the development of fracture morphology, particularly proficient in the fracture extension direction. It plays an important role in guiding well pattern layout, fracturing technology and construction scale. The X1 well in qinghai gonghe basin is difficult to monitor because of its tight and hard lithology, many construction uncertainties and small flow rate, meanwhile, X1 is the first fracturing of geothermal wells in China. Using inclinometer fracturing monitoring technology monitoring the process of geothermal well reconstruction is also the first time worldwide. The successful implementation of X1 well fracturing monitoring has explored and enriched the geothermal well fracturing monitoring methods, broadened the application scope of inclinometer monitoring. The important fracture parameters of well X1 are obtained by monitoring, which provides basic data for well pattern layout in this area and an important reference example for monitoring and construction of inclinometer.
keywords:Geothermal  hydrofracture  Tiltmeter  fracture monitoring
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