西南石油大学学报(自然科学版) ›› 2026, Vol. 48 ›› Issue (4): 35-44.DOI: 10.11885/j.issn.1674-5086.2025.12.15.03

• 油藏型储气库建库技术专刊 • 上一篇    下一篇

南堡1-5油藏改建储气库断层承压能力评价

吴海涛1, 马晓丽1, 刘满仓2, 徐淑娟2, 李业会1, 邱小松2   

  1. 1. 中国石油冀东油田分公司, 河北 唐山 063004;
    2. 中国石油勘探开发研究院, 北京 海淀 100083
  • 收稿日期:2025-12-15 出版日期:2026-07-17 发布日期:2026-07-17
  • 通讯作者: 邱小松,E-mail:qiuxiaos69@petrochina.com.cn
  • 基金资助:
    中国石油青年科技专项(2024DQ03071)

Fault Pressure-bearing Capacity Assessment for Gas Storage Conversion in Nanpu 1-5 Reservoir

WU Haitao1, MA Xiaoli1, LIU Mancang2, XU Shujuan2, LI Yehui1, QIU Xiaosong2   

  1. 1. PetroChina Jidong Oilfield Company, Tangshan, Hebei 063004, China;
    2. Research Institute of Petroleum Exploration and Development, Haidian, Beijing 100083, China
  • Received:2025-12-15 Online:2026-07-17 Published:2026-07-17
  • About author:吴海涛,1983年生,男,汉族,山东临朐人,工程师,主要从事油气田开发和油气藏改建储气库等方面的研究。E-mail:qhwht1983@petrochina.con.cn
    马晓丽,1982年生,女,汉族,河北平山人,高级工程师,硕士,主要从事油气田开发研究。E-mail:npmxl@petrochina.com.cn
    刘满仓,1978年生,男,汉族,甘肃天水人,高级工程师,硕士,主要从事储气库选址评价研究。E-mail:liumc69@petrochina.com.cn
    徐淑娟,1983年生,女,汉族,山东潍坊人,高级工程师,硕士,主要从事储气库选址评价方面的研究。E-mail:xsj69@petrochina.com.cn
    李业会,1979年生,男,汉族,河南商丘人,高级工程师,硕士,主要从事储气库建设方面的研究。E-mail:liyehui@petrolchina.com.cn
    邱小松,1986年生,男,汉族,湖北黄冈人,高级工程师,博士,主要从事储气库规划选址方面的研究。E-mail:qiuxiaos69@petrochina.com.cn

摘要: 复杂断块油藏改建储气库的核心运行风险,是多周期高低压往复注采工况下的断层密封失效,因此,储气库断层承压能力的定量评价,是保障储气库全生命周期安全运行的核心前提。依托南堡1-5油藏的地震、钻井及生产动态资料,开展了断层分级分期评价,通过油气藏开发与储气库注采全生命周期的四维地质力学模拟,实现了断层安全承压能力的定量表征。研究结果表明:研究区F1、F2、F3、F4、F5、F6断层断距普遍较大,储气层与致密层对接,封闭性良好;上述断层将南堡1-5油藏分割为南堡1-7、南堡105X1、南堡1-5X1090、南堡105X5等4个断块,各断块的薄弱环节分别为F2(南堡1-7)、F2(南堡105X1)、F5、F6边界断层,对应断块的安全承压能力分别为27.4、28.9、28.9、27.5 MPa。研究成果不仅为南堡1-5油藏改建储气库上限运行压力的科学设计提供了核心依据,也可为在役储气库上限运行压力的优化设计提供技术参考,助力提升储气库运行效益。

关键词: 南堡凹陷, 油藏, 储气库, 断层, 承压能力

Abstract: The primary risk associated with repurposing complex fault-block oil reservoirs into gas storage facilities lies in the potential loss of fault seal integrity under alternating high and low pressure conditions during cyclic injection and production. Therefore, a quantitative assessment of the pressure-bearing capacity of faults is critical to ensuring the safe operation of such gas storage sites. This study, based on seismic data, drilling records, and production dynamics from the Nanpu 1-5 Reservoir, conducts a graded and staged evaluation of faults. Through four-dimensional geomechanical simulations covering the entire lifecycle of reservoir development and gas storage injection-production operations, the safe pressure-bearing capacity of faults is quantitatively evaluated. The results indicate that faults F1 to F6 generally exhibit large throws, characterized by sealing interfaces between gas-bearing layers and tight formations, demonstrating excellent sealing performance. The Nanpu 1-5 Reservoir is divided into four fault blocks: NP1-7, NP105X1, NP1-5X1090, and NP105X5. Critical weak points in these fault blocks are identified as boundary faults F2(NP1-7), F2(NP105X1), F5, and F6, with safe pressure-bearing capacities of 27.4, 28.9, 28.9, and 27.5 MPa, respectively. These findings provide a scientific basis for optimizing the maximum operating pressure of the NP1-5 gas storage facility. The methodology can be extended to enhance the operational efficiency of existing gas storage facilities through pressure optimization.

Key words: Nanpu Sag, reservoir, underground gas storage, fault, pressure-bearing capacity

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