吉林油田致密油藏水平井压裂技术研究与应用

发布时间：2018-05-08 17:00

本文选题：水平井 + 体积压裂　；参考：《东北石油大学》2015年硕士论文

【摘要】：吉林探区石油资源量36亿吨,已探明石油地质储量14.6亿吨,资源探明率40.6%,剩余石油资源量21.4亿吨,主要分布在松辽盆地中浅层和伊通盆地;其中,松辽盆地中浅层剩余资源量为15.5亿吨,占72.4%以上,以扶余油层致密油为主(7.8亿吨),资源潜力大,是吉林探区今后石油勘探开发的重点层系。致密油勘探开发刚刚起步,存在很多问题需要解决,常规压裂单井产能低、递减快,需要在储层改造技术上攻关创新、组合挖潜,提高致密油产量和稳产水平,实现致密油经济动用。本文主要是针对吉林油田致密油藏开展体积压裂技术研究,立足解决致密油压裂增产瓶颈技术,通过研究形成了水平井加体积压裂技术、水平井组同步、交叉压裂技术、水平井压裂工艺技术、低伤害压裂液体系及配套监测评估等技术系列。现场应用实践表明,压裂改造后,油井产液量、产油量大幅度提高,有效提高了吉林油田致密油初产和稳产水平,实现了资源转化产能;水平井裂缝监测技术的应用,明确了水平井裂缝扩展规律,为下步水平井部署、钻井及压裂方案制定提供了指导。此项技术的研究成果,揭示了扶余致密油层良好的开发前景,为吉林油田致密油藏的高效动用探索出了一条可行之路。
[Abstract]:Jilin exploration area has 3.6 billion tons of petroleum resources, 1.46 billion tons of proven petroleum geological reserves, 40.6% of proved resources and 2.14 billion tons of remaining oil resources, mainly distributed in the Songliao Basin and the Yitong Basin. In Songliao Basin, the remaining resources in the middle and shallow layers are 1.55 billion tons, accounting for more than 72.4%, and the dense oil in Fuyu reservoir is the main one (780 million tons), which has a great potential of resources, and is the key series of oil exploration and development in Jilin exploration area in the future. The exploration and development of tight oil has just started, there are many problems to be solved. The conventional fracturing single well has low productivity, fast decline, need to solve the key problems in reservoir reconstruction technology, combine to tap potential, and improve the production rate and stable production level of tight oil. To achieve the economic use of dense oil. This paper mainly focuses on the research of volume fracturing technology for tight reservoirs in Jilin Oilfield. Based on solving the bottleneck technology of tight oil fracturing and increasing production, the horizontal well and volume fracturing technology, horizontal well group synchronous and cross fracturing technology are formed through the research. Horizontal well fracturing technology, low-damage fracturing fluid system and supporting monitoring and evaluation technology series. The field application shows that after fracturing, the fluid production and oil production of oil wells are greatly increased, the initial and stable production level of dense oil in Jilin Oilfield is effectively improved, the productivity of resource conversion is realized, the application of fracture monitoring technology in horizontal wells, The fracture propagation law of horizontal well is defined, which provides guidance for the next horizontal well deployment, drilling and fracturing scheme formulation. The research results of this technology reveal the good development prospect of Fuyu tight reservoir and explore a feasible way for the high efficiency production of dense reservoir in Jilin Oilfield.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE357.1

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