压裂返排液处理与利用研究进展
1. 陕西延长石油压裂材料有限公司, 陕西渭南 715500
2. 西安阿伯塔资环分析测试技术有限公司, 陕西西安 710065
3. 西安石油大学, 油气田化学陕西省高校工程研究中心, 陕西西安 710065
4. 西安石油大学, 陕西省油气田环境污染控制技术与储层保护重点实验室, 陕西西安 710065
| 摘 要： | 随着非常规油气田的开发，压裂技术在油田得到了广泛应用。压裂过程中产生的高矿化度、高粘度、高COD含量的压裂返排液的处理问题一直是困扰行业的一个难题，也是影响页岩气开发顺利进行的关键因素。压裂返排液成分复杂、处理难度大、处理成本高、处理效果差等问题，使其成为困扰页岩气开发的重要难题之一。因此，针对压裂返排液的处置与再利用的研究应运而生。经过对国内外文献的调研，本文对压裂返排液的组成、来源、特点以及危害进行了分析。同时从压裂返排液处理达标后外排、压裂返排液的回注以及压裂返排液的回用三个方面综述了国内外压裂返排液主要处理方法的研究现状，且对压裂返排液外排前的多种处理方法的研究现状进行归纳总结，并进一步阐述了压裂返排液处理与再利用目前所存在的问题以及未来的发展方向。 |
| 关 键 词： | 压裂返排液; 处理; 再利用 |
| DOI： | 10.57237/j.cse.2023.03.001 |
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收稿日期: 2023-06-02
接受日期: 2023-07-14
在线出版日期: 2023-07-24
Research Progress in Treatment and Utilization of Fracturing Flowback Fluid
1. Shanxi Yanchang Petroleum Fracturing Material Co., Ltd, Weinan 715500, China
2. Xi’an Alberta Resources & Environment Analysis and Testing Technology Co., Ltd., Xi’an 710065, China
3. Shaanxi University Engineering Research Center of Oil and Gas Field Chemistry, Xi’an Shiyou University, Xi’an 710065, China
| Abstract: | With the development of unconventional oil and gas fields, fracturing technology has been widely used in oil fields. The treatment of fracturing flowback fluid with high salinity, high viscosity and high COD content during fracturing has always been a difficult problem in the industry, and it is also a key factor affecting the smooth development of shale gas. The composition of fracturing flowback fluid is complicated, the processing difficulty is high, the processing cost is high, and the processing effect is poor, which makes it become one of the important problems puzzling the development of shale gas. Therefore, the research on the disposal and reuse of fracturing flowback fluid comes into being. Through the investigation of domestic and foreign literature, the composition, source, characteristics and hazards of fracturing flowback fluid are analyzed in this paper. At the same time, the research status of the main treatment methods of fracturing flowback fluid at home and abroad is reviewed from three aspects: efflux after the treatment of fracturing flowback fluid reaches the standard, reinjection of fracturing flowback fluid and reuse of fracturing flowback fluid, and the research status of various treatment methods before efflux of fracturing flowback fluid is summarized, and the existing problems in the treatment and reuse of fracturing flowback fluid and the future development direction are further expounded. |
| Keywords: | Fracturing Flowback Fluid; Dispose; Reuse |
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