页岩油储层改造和高效开发技术

随着勘探开发技术的不断发展，页岩油勘探不断取得重大突破，可采资源量不断创新高，页岩油有望成为我国未来重要的战略性接替资源。通过调研国内外大量相关文献，分析和整理出国内外页岩油定义、发展历程、储层改造和开发技术，取得认识:页岩油储层发育纳米级孔、裂缝系统，利于页岩油聚集；储层脆性指数较高，宜于压裂改造；但储层敏感、渗透率低、含水饱和度高，在开发和改造中要结合储层上述特点提出适宜的技术。介绍了变排量压裂技术、重复压裂技术、小井距立体开发技术、同步压裂技术、体积改造技术、人工油气藏等储层改造工艺及压裂材料、微地震裂缝测试等配套技术；阐述了水平井钻井技术、“工厂化”作业、地质工程一体化等页岩油开发前沿技术。最后对中国页岩油储层改造和开发存在的技术难点进行了分析，提出了相应的勘探开发建议。以期对我国页岩油开发提供借鉴和参考。

Shale oil reservoir reconstruction and efficient development technology

With the continuous development of exploration and development technology, shale oil exploration has made major breakthroughs, and the amount of recoverable resources has continuously increased. The shale oil is expected to become an important strategic replacement resource for China in the future. Through the investigation of a large number of relevant literatures at home and abroad, the shale oil definition, development history, reservoir transformation and development technology at home and abroad are analyzed and compiled, and the understanding is made that the shale oil reservoir develops nano-scale pores and crack systems, which is conducive to shale oil accumulation; The reservoir fragility index is high, which is suitable for fracturing and transformation; however, the reservoir is sensitive, the permeability is low, and the water saturation is high. In the development and transformation, it is necessary to combine the above characteristics of the reservoir to propose appropriate technology. The technologies of variable displacement fracturing technology, repeated fracturing technology, small well spacing solid development technology, synchronous fracturing technology, volume reforming technology, artificial oil and gas reservoir and other reservoir reforming processes, fracturing materials and microseismic crack testing are introduced. The frontier technology of shale oil development such as horizontal well drilling technology, " factory” operation, and geological engineering integration is described. Finally, the technical difficulties in the reconstruction and development of China ’ s shale oil reservoirs are analyzed, and corresponding exploration and development proposals are put forward. In order to provide reference and reference for the development of shale oil in China.