地面测斜仪压裂裂缝监测技术及应用

INDUCED FRACTURE MONITORING TECHNOLOGY AND ITS APPLICATION OF SURFACE TILTMETER

了解压裂裂缝的产状、方位和倾角等参数对合理布置井网、优化压裂设计、科学设计井筒轨迹等具有重要意义。在水力压裂中,裂缝诊断技术是人们认识和评价压裂裂缝扩展的重要手段。地面测斜仪水力裂缝监测技术是常用的裂缝监测技术之一,可用来确定裂缝的形态、方位和倾角。针对火山岩储层压裂裂缝复杂的问题,采用地面测斜仪压裂裂缝监测技术对火山岩储层1口水平井压裂裂缝进行了监测,结果表明,火山岩储层压裂裂缝形态复杂,具有垂直缝、垂直缝和水平缝相交的复杂缝以及多裂缝等特征,因此,在压裂设计中,应充分考虑裂缝的复杂性,为优化压裂设计和布置井网提供指导。

In hydraulic fracturing, fracture diagnostic is very important to realize and evaluate the spread of induced fracture. The conventional fracture diagnostic is using surface tiltmeter. The surface tiltmeter could determine the morphotype, azimuth and dip of fracture. The surface tiltmeter diagnostic technique has been used in volcanic reservoir, the results indicated that the hydraulic fracture of volcanic reservoir were complex, including vertical fractures, complex fractures and multiple vertical fractures etc. In fracturing design, the complexity of fracture must be considered.