油气藏评价与开发 ›› 2021, Vol. 11 ›› Issue (3): 297-304.doi: 10.13809/j.cnki.cn32-1825/te.2021.03.004

• 专家论坛 • 上一篇    下一篇

非常规油气藏体积压裂全生命周期地质工程一体化技术

蒋廷学1,2(),卞晓冰1,2,左罗1,2,沈子齐1,2,刘建坤1,2,吴春方1,2   

  1. 1.页岩油气富集机理与有效开发国家重点实验室,北京 100029
    2.中国石化石油工程技术研究院,北京 100029
  • 收稿日期:2021-03-09 出版日期:2021-06-22 发布日期:2021-06-24
  • 作者简介:蒋廷学(1969—),男,博士,正高级工程师,主要从事水力压裂机理、压裂酸化产能预测、设计方法及新工艺研究与试验等工作。地址:北京市昌平区沙河镇中国石化科学技术研究中心,邮政编码:102206。E-mail: jiangtx.sripe@sinopec.com

Whole lifecycle geology-engineering integration of volumetric fracturing technology in unconventional reservoir

JIANG Tingxue1,2(),BIAN Xiaobing1,2,ZUO Luo1,2,SHEN Ziqi1,2,LIU Jiankun1,2,WU Chunfang1,2   

  1. 1. State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 100029, China
    2. Sinopec Research Institute of Petroleum Engineering, Beijing 100029, China
  • Received:2021-03-09 Online:2021-06-22 Published:2021-06-24

摘要:

基于地质工程一体化的理念,针对非常规油气藏体积改造技术的全生命周期的方案优化、实施控制及压后管理等环节,进行了系统的研究、论证和应用验证。主要技术系列包括:①由地质工程双“甜点”、双“甜度”到综合可压度的压前储层评价技术系列;②基于大数据和智能算法的“井网—裂缝—压裂工艺”多参数协同优化技术;③由现场施工数据实时反演储层地质参数的压裂实施控制技术;④考虑渗吸作用的压裂液返排优化;⑤压后综合评估技术及压裂有效期内的生产管理动态优化调整技术等。现场应用效果表明:考虑了全生命周期的地质工程一体化体积压裂技术,可最大限度地挖掘储层的增产、稳产潜力以及提高单井EUR(可采储量)的潜力,对非常规油气藏的“四提”和“降本”等目标的实现,具有十分重要的指导和借鉴意义。

关键词: 体积压裂, 地质工程一体化, 动态优化, 非常规油气藏, 全生命周期

Abstract:

Based on the concept of geology-engineering integration, a systematic research, including theoretical study and field investigation, has been performed on design optimization, implement control and post-frac management of the whole lifecycle of volumetric fracturing technology in unconventional reservoir. The key technologies include: ①the series of pre-frac evaluation technologies regarding geology-engineering double “sweet spots”, double sweetness and comprehensive fracability; ②big data and AI algorithm based “well pattern-fracture-fracturing technique” multi-parameter collaborative optimization technology; ③fracturing control technology based on formation geological properties obtained from inversion study of on-site fracturing operation data; optimization on fracturing fluid flowback scenarios with consideration of imbibition effect; ④comprehensive post-frac evaluation technology; ⑤progressive production management optimization and adjustment technology in effective period of fracturing treatment. Field applications demonstrate that the geology-engineering integration volumetric fracturing technology with consideration of whole lifecycle development can maximize the potential to increase production, stabilize production and improve single well EUR, which has enormous guidance and reference significance towards the achievement of the “Four Improvements” and “Cost Reducing” goals in unconventional reservoir development.

Key words: volumetric fracturing, geology-engineering integration, progressive optimization, unconventional reservoir, whole lifecycle

中图分类号: 

  • TE357