Practice and prospect of development and comprehensive utilization of buried hill reservoirs in Jizhong depression

doi:10.7623/syxb202506011

Acta Petrolei Sinica ›› 2025, Vol. 46 ›› Issue (6): 1180-1192.DOI: 10.7623/syxb202506011

• OIL FIELD DEVELOPMENT • Previous Articles

Practice and prospect of development and comprehensive utilization of buried hill reservoirs in Jizhong depression

Zhou Xian¹, Meng Qingchun², Chen Hong³, Zeng Qingqiao¹, Zeng Junqi⁴, Wang Ruisi¹, Wang Li¹, Du Lihong⁵, Zhang Xi¹, Yan Xue¹

1. Exploration & Development Research Institute, PetroChina Huabei Oilfield Company, Hebei Renqiu 062550, China;
2. PetroChina Huabei Oilfield Company, Hebei Renqiu 062550, China;
3. Development Department, PetroChina Huabei Oilfield Company, Hebei Renqiu 062550, China;
4. College of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;
5. Institute of Oil and Gas Processing Technology, PetroChina Huabei Oilfield Company, Hebei Renqiu 062550, China

Received:2024-11-17 Revised:2025-04-09 Published:2025-06-28

冀中坳陷古潜山油藏开发与综合利用实践与展望

周贤¹, 孟庆春², 陈洪³, 曾庆桥¹, 曾俊淇⁴, 王睿思¹, 王莉¹, 杜立红⁵, 张茜¹, 闫雪¹

1. 中国石油天然气股份有限公司华北油田分公司勘探开发研究院河北任丘 062550;
2. 中国石油天然气股份有限公司华北油田分公司河北任丘 062550;
3. 中国石油天然气股份有限公司华北油田分公司开发事业部河北任丘 062550;
4. 中国石油大学(北京)石油工程学院北京 102249;
5. 中国石油天然气股份有限公司华北油田分公司油气工艺研究院河北任丘 062550

通讯作者: 周贤,男,1988年6月生,2013年获中国石油大学(北京)硕士学位,现为中国石油天然气股份有限公司华北油田分公司勘探开发研究院高级工程师,主要从事碳酸盐岩潜山油藏开发及提高采收率技术研究。Email:yjy_zhoux@petrochina.com.cn
基金资助:
中国石油天然气股份有限公司科技项目(2023YQX10407ZK)资助。

Abstract

Abstract: The main buried-hill reservoirs in Jizhong depression have entered in the stage of high water-cut and high-recovery development, where the remaining geological reserves are approximately 400 million tons, demonstrating significant prospecting potential. These reservoirs exhibit superior reservoir-cap conditions, large oil-bearing area, and strategic proximity to Beijing, Tianjin, Xiong'an, and Shanxi-Beijing Ⅱ/Ⅲ pipelines, providing favorable conditions for gas-assisted gravity drainage, and reconstruction of underground gas storage. In addition, the reservoirs generally possess certain edge and bottom water energy, associated with abundant geothermal resources; the formation temperature is as high as 70-140℃. To implement major strategic projects for efficient hydrocarbon development and enhanced oil recovery (EOR)in buried-hill reservoirs is of great significance for revitalizing the buried-hill geothermal and petroleum resources in the central Hebei area. This paper summarizes the status of development and integrated utilization technology for buried hill reservoirs in Jizhong depression, involving intensity-controlled oil production, depressurizing production, profile control and water plugging, potential exploration of weathering crust and low permeability zones, geothermal utilization, gas injection for oil displacement, and gas storage reconstruction. Based on the current energy situation, technical risks, and economic evaluations, it is considered that CCUS-EOR (carbon capture, utilization and storage-enhanced oil recovery), synergy between natural gas flooding and gas storage, nitrogen assisted gravity drainage, and depressurizing production coupled with geothermal utilization will be the most promising comprehensive utilization technologies in the future. However, ongoing challenges include poor conditions of old wells, unclear mechanism of miscible gravity drainage, shortage of carbon sources, separate management of oilfield development and geothermal utilization, incomplete supporting technologies, and large-scale investment.

Key words: buried hill, enhanced oil recovery, comprehensive utilization, gas-assisted gravity drainage, CCUS, gas storage, depressurizing production, geothermal utilization

摘要： 冀中坳陷主力潜山油藏已进入"双高"开发阶段,剩余地质储量近4×10⁸t,潜力巨大。储-盖条件优越、含油幅度大,区域位置毗邻京、津、雄和陕京二、三线,具备注气重力驱、改建储气库的有利条件。另外,油藏普遍具有一定的边底水能量,地层温度为70~140℃,伴生丰富的地热资源。实施潜山油藏效益开发与提高采收率重大战略工程,对于盘活冀中地区潜山热储资源具有重大意义。对冀中坳陷潜山油藏开发与综合利用技术现状进行了梳理,包括控制强度采油、降压开采、调剖堵水、风化壳及低渗带挖潜、地热利用、注气驱油、改建储气库7个方面。结合当前能源形势、技术风险与效益分析认为,碳驱油碳埋存(CCUS-EOR)、天然气驱协同储气库、氮气重力驱、降压开采协同地热利用将是潜山油藏未来最具发展潜力的综合利用技术,但也面临着老井井况差、混相重力驱机理不明确、碳源供应短缺、油田开发与地热利用各自为政、配套工艺不完善、投资规模大等挑战,研究成果以期为潜山油藏的开发调整提供参考借鉴。

关键词: 古潜山, 提高采收率, 综合利用, 注气重力驱, 碳捕集利用封存, 储气库, 降压开采, 地热利用

CLC Number:

TE33

Zhou Xian, Meng Qingchun, Chen Hong, Zeng Qingqiao, Zeng Junqi, Wang Ruisi, Wang Li, Du Lihong, Zhang Xi, Yan Xue. Practice and prospect of development and comprehensive utilization of buried hill reservoirs in Jizhong depression[J]. Acta Petrolei Sinica, 2025, 46(6): 1180-1192.

周贤, 孟庆春, 陈洪, 曾庆桥, 曾俊淇, 王睿思, 王莉, 杜立红, 张茜, 闫雪. 冀中坳陷古潜山油藏开发与综合利用实践与展望[J]. 石油学报, 2025, 46(6): 1180-1192.

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Practice and prospect of development and comprehensive utilization of buried hill reservoirs in Jizhong depression

冀中坳陷古潜山油藏开发与综合利用实践与展望

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