辽宁石油化工大学学报 ›› 2026, Vol. 46 ›› Issue (4): 40-51.DOI: 10.12422/j.issn.1672-6952.2026.04.006

• 石油与天然气工程 • 上一篇    下一篇

致密砂岩气藏水平井压裂施工参数优化新方法与效果评价——以JH区块为例

黎凯(), 秦禄琪, 伍洲, 段啟来, 彭波   

  1. 川庆钻探工程公司 井下作业公司,四川 成都 610052
  • 收稿日期:2026-01-15 修回日期:2026-02-11 出版日期:2026-08-25 发布日期:2026-07-20
  • 作者简介:黎凯(1996-),男,硕士,工程师,从事地质工程一体化数值模拟方面的研究;E⁃mail:573106328@qq.com
  • 基金资助:
    重庆市自然科学基金面上项目(CQ2026B?16?1?4)

A New Method for Optimizing Fracturing Parameters in HoriZontal Wells in Tight Sandstone Gas Reservoirs and Its Performance Evaluation: A Case Study of the JH Block

Kai LI(), Luqi QIN, Zhou WU, Qilai DUAN, Bo PENG   

  1. Downhole Operation Company of Chuanqing Drilling Engineering Co. ,Ltd. ,Chengdu Sichuan 610052,China
  • Received:2026-01-15 Revised:2026-02-11 Published:2026-08-25 Online:2026-07-20

摘要:

水平井分段压裂技术是实现低孔低渗致密砂岩气藏有效开发的关键,其中压裂施工参数的合理优化是基础。目前,普遍采用“一井一策”的压裂设计思路,实践表明该思路下施工参数与压裂效果的相关性不高,参数对改造效果的影响规律不清楚,无法适应强非均质性致密砂岩气藏多类型储层共存的局面。基于此,以金秋气田JH区块为研究背景,提出了考虑储层品质和砂体分布特点的“一段一策,分段优化”新思路;采用地质工程一体化思路,建立了“储层类型优化-改造段分类-目的井参数优化”的致密砂岩气藏水平井压裂施工参数优化高效设计方法,构建了一套可快速复用、针对分储层类型的致密砂岩气藏压裂标准化设计流程。结果表明,相比传统方法,该优化方法可使单井压裂设计周期缩短50%~60%,单井压裂成本降低10.6%,压后单井稳产时间延长58.3%,最终可采储量(EUR)提高15.6%。该优化方法可有效提升强非均质性致密砂岩气藏压裂施工参数优化的科学性和高效性,对以JH区块为代表的同类致密砂岩气藏压裂改造及开发效益提升具有一定的指导作用和工程借鉴价值。

关键词: 致密砂岩气, 水平井, 分段压裂, JH区块, 地质工程一体化, 施工参数优化

Abstract:

Staged fracturing of horizontal wells is essential for the effective development of tight sandstone gas reservoirs with low porosity and low permeability, and rational optimization of fracturing treatment parameters is fundamental. The conventional "one-well, one-design" approach has been widely used; however, field practice shows that the correlation between treatment parameters and fracturing effectiveness under this approach is weak. The influence of individual parameters on stimulation performance remains unclear, and the method cannot accommodate the coexistence of multiple reservoir types in strongly heterogeneous tight sandstone gas reservoirs. Taking the JH block of the Jinqiu gas field as the study area, this paper proposes a new concept of "one-stage, one-design, segmented optimization" that considers reservoir quality and sandbody distribution. Following an integrated geology-engineering approach, an efficient design method for optimizing fracturing parameters in horizontal wells in tight sandstone gas reservoirs is established, including reservoir-type-specific optimization, treatment-stage classification, and target-well parameter optimization. A standardized design workflow that can be rapidly reused for different reservoir types is also developed. The results show that, compared with the conventional method, the proposed optimization method shortens the single?well fracturing design cycle by 50%-60%, reduces single?well fracturing cost by 10.6%, increases the post-fracturing stable-production period by 58.3%, and improves estimated ultimate recovery (EUR) by 15.6%. The method can effectively improve the scientific rigor and efficiency of fracturing-parameter optimization in strongly heterogeneous tight sandstone gas reservoirs and provides practical guidance for fracturing stimulation and development-benefit enhancement in reservoirs similar to the JH block.

Key words: Tight sandstone gas, Horizontal well, Staged fracturing, JH block, Geology-engineering integration, Fracturing- parameters optimization

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引用本文

黎凯, 秦禄琪, 伍洲, 段啟来, 彭波. 致密砂岩气藏水平井压裂施工参数优化新方法与效果评价——以JH区块为例[J]. 辽宁石油化工大学学报, 2026, 46(4): 40-51.

Kai LI, Luqi QIN, Zhou WU, Qilai DUAN, Bo PENG. A New Method for Optimizing Fracturing Parameters in HoriZontal Wells in Tight Sandstone Gas Reservoirs and Its Performance Evaluation: A Case Study of the JH Block[J]. Journal of Liaoning Petrochemical University, 2026, 46(4): 40-51.

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链接本文: https://journal.lnpu.edu.cn/CN/10.12422/j.issn.1672-6952.2026.04.006

               https://journal.lnpu.edu.cn/CN/Y2026/V46/I4/40