潜山油藏开发后期驱油、储气及地热利用协同联动探索

doi:10.3969/j.issn.1002-302x.2023.05.010

摘要/Abstract

摘要： 针对潜山油藏开发后期剩余油潜力不明、注气提高采收率难度大、采出高温水处理难、地热资源未有效利用等问题，开展理论与技术探索，根据油藏型地下储气库驱油储气地热协同联动一体化建设实践，取得以下成果及认识：（1）潜山油藏具有得天独厚的建库优势；（2）通过调控注气速度控制油气界面缓慢推进，保持油水界面稳定，有望实现潜山油藏大幅提高采收率与调峰供气一体化；（3）结合油田现有规划，将地热井、换热站、油田管线进行区域整合，建立了潜山油藏注气开采—余热利用—回注闭环模式，实现多套地热资源和油田集输余热综合利用；（4）开展驱油储气地热协同联动一体化建设试验，取得良好效果，预测提高采收率20%以上。潜山地热开发利用推广以来，已在冀中地区建成205×104m2/a供暖能力，利用地热能折合标准煤5.11×104t，减排CO2 达14.15×104t，提高了清洁能源综合利用能力，缓解了供暖压力。

关键词: 油藏型储气库；潜山油藏；提高采收率；地热资源；余热利用；协同联动

Abstract: The theoretical and technology study was made for the purpose to solve the issues related to the later-on development stage of the buried-hill oil reservoir, such as unclear remaining oil potential, difficult EOR by means of gas injection, difficult treatment of the produced high-temperature water, and failure for effective use of geothermal resources. A series of achievements were made in the practice from synergy among underground gas storage, oil displacement and geothermal utilization. (1) The buried-hill oil reservoir has a unique advantage for construction of gas storage depot. (2) The adjustment and control technology of the gas-injection speed can slowly expand the oil-gas interface and keep the oil-water interface stable, thus hopefully bringing about integration of EOR with peak-adjusting gas supply for the buried-hill reservoir. (3) Based on the existing plan of the oilfield, the geothermal wells, heat-exchanging stations and oilfield pipelines in the area are integrated to establish the closed-loop model of gas-injection development, residual heat recovery and re-injection for the buried-hill reservoir and make comprehensive use of multiple sets of geothermal resources and residual heat from the oilfield gathering and transferring facility. (4) Integrated construction of oil displacement, gas storage and geothermal synergy is experimented with the good results achieved. The predicted EOR is raised by more than 20 percent. The heat-supplying capacity of 205×104m2/a has been established in the central area of Hebei Province since the buried-hill geothermal energy was brought under development and utilization. The applied geothermal energy was equal to 5.11×104t of standard coal, reduced 14.15×104t of carbon dioxide, improved the abilities for comprehensive use of clean energy, and alleviated the heat-supply pressure.

Key words: reservoir-typed gas storage depot, buried-hill oil reservoir, EOR, geothermal resources, residual hear application, synergy

中图分类号:

TE357
TE972

崔刚　吕传炳　杨莹莹　程相振　崔昕玥　王贵阳. 潜山油藏开发后期驱油、储气及地热利用协同联动探索[J]. 石油科技论坛, 2023, 42(5): 64-72.

Cui Gang, Lv Chuanbing, Yang Yingying, Cheng Xiangzhen, Cui Xinyue, Wang Guiyang. Research on Synergy of Oil Displacement, Gas Storage and Geothermal Utilization in Later-on Development Stage of Buried-hill Oil Reservoir[J]. Petroleum Science and Technology Forum, 2023, 42(5): 64-72.

参考文献

[1]　丁国生, 魏欢. 中国地下储气库建设20年回顾与展望[J]. 油气储运, 2020, 39(1): 25-31.
Ding Guosheng, Wei Huan. Review on 20 years’ UGS construction in China and the prospect[J]. Oil & Gas Storage and Transportation, 2020, 39(1): 25-31.
[2]　王友启, 周梅, 聂俊. 提高采收率技术应用状况及发展趋势[J]. 断块油气田, 2010, 17(5): 628-631．
Wang Youqi, Zhou Mei, Nie Jun. Application status and development trend of EOR technology[J]. Fault-Block Oil & Gas Field, 2010, 17(5): 628-631．
[3]　江同文, 王锦芳, 王正茂, 等. 地下储气库与天然气驱油协同建设实践与认识[J]. 天然气工业, 2021, 41(9): 66-74.
Jiang Tongwen, Wang Jinfang, Wang Zhengmao, et al. Practice and understanding of collaborative construction of underground gas storage and natural gas flooding [J]. Natural Gas Industry, 2021, 41(9): 66-74.
[4]　江同文, 王正茂, 王锦芳, 等. 天然气顶部重力驱油储气一体化建库技术[J]. 石油勘探与开发, 2021, 48(5): 1061-1068.
Jiang Tongwen, Wang Zhengmao, Wang Jinfang, et al. Integrated construction technology for natural gas gravity drive and underground gas storage[J]. Petroleum Exploration and Development, 2021, 48(5): 1061-1068.
[5]　丁国生, 丁一宸, 李洋, 等. 碳中和战略下的中国地下储气库发展前景[J]. 油气储运, 2022, 41(1): 1-9.
Ding Guosheng, Ding Yichen, Li Yang, et al. Prospects of underground gas storage in China under the strategy of carbon neutrality[J]. Oil & Gas Storage and Transportation, 2022, 41(1): 1-9.
[6]　马新华, 丁国生. 中国天然气地下储气库[M]. 北京: 石油工业出版社, 2018.
Ma Xinhua, Ding Guosheng. China’s underground natural gas storage[M]. Beijing: Petroleum Industry Press, 2018.
[7]　郑雅丽, 孙军昌, 邱小松, 等. 油气藏型储气库地质体完整性内涵与评价技术[J].天然气工业, 2020, 40(5): 94-103.
Zheng Yali, Sun Junchang, Qiu Xiaosong, et al. Connotation and evaluation technique of geological integrity of UGSs in oil-gas fields[J]. Natural Gas Industry, 2020, 40(5): 94-103.
[8]　袁士义, 王强, 李军诗, 等. 注气提高采收率技术进展及前景展望[J]. 石油学报, 2020, 41(12): 1623-1631.
Yuan Shiyi, Wang Qiang, Li Junshi, et al. Technology progress and prospects of enhance oil recovery by gas injection[J]. Acta Petrolei Sinica, 2020, 41(12): 1623-1631.
[9]　袁士义, 王强, 李军诗, 等. 提高采收率技术创新支撑我国原油产量长期稳产[J]. 石油科技论坛, 2021, 40(3): 24-32.
Yuan Shiyi, Wang Qiang, Li Junshi, et al. EOR technological innovation keeps China’s crude oil production stable on long-term basis[J]. Petroleum Science and Technology Forum, 2021, 40(3): 24-32.
[10] 汤勇, 龙科吉, 王皆明, 等. 凝析气藏型储气库多周期注采过程中流体相态变化特征[J]. 石油勘探与开发, 2021, 48(2): 337-346.
Tang Yong, Long Keji, Wang Jie ming, et al. Change of phase state during multi-cycle injection and production process of condensate gas reservoir based underground gas storage[J]. Petroleum Exploration and Development, 2021, 48(2): 337-346.
[11] 朱思南, 孙军昌, 魏国齐, 等. 水侵气藏型储气库注采相渗滞后数值模拟修正方法[J]. 石油勘探与开发, 2021, 48(1): 166-174.
Zhu Sinan, Sun Junchang, Wei Guoqi, et al. Numerical simulation-based correction of relative permeability hysteresis in water-invaded underground gas storage during multi-cycle injection and production[J]. Petroleum Exploration and Development, 2021, 48(1): 166-174.
[12] 何祖清, 何同, 伊伟锴, 等. 中国石化枯竭气藏型储气库注采技术及发展建议[J]. 地质与勘探, 2020, 56(3): 605-613.
He Zuqing, He Tong, Yi Weikai, et al. Development suggestions and production technologies and development of Sinopec’s gas storage of depleted gas reservoir type[J]. Geology and Exploration, 2020, 56(3): 605-613.
[13] 施和生, 牛成民, 侯明才, 等. 渤中13-2双层结构太古宇潜山成藏条件分析与勘探发现[J]. 中国石油勘探, 2021, 26(2): 12-20.
Shi Hesheng, Niu Chengmin, Hou Mingcai, et al. Analysis of hydrocarbon accumulation conditions of double-layered Archaeozoic buried hill and major discovery of Bozhong 13-2 Oil and Gasfield, Bohai sea area[J]. China Petroleum Exploration, 2021, 26(2): 12-20.
[14] 牛成民, 于海波, 胡安文, 等. 渤海湾盆地渤中坳陷天然气成藏主控因素与有利勘探方向[J]. 中国石油勘探, 2021, 26(6): 152-164.
Niu Chengmin, Yu Haibo, Hu Anwen, et al. Main controlling factors of natural gas accumulation and favorable exploration target in Bozhong Depression, Bohai Bay Basin[J]. China Petroleum Exploration, 2021, 26(6): 152-164.
[15] 穆龙新, 陈亚强, 许安著, 等. 中国石油海外油气田开发技术进展与发展方向[J]. 石油勘探与开发, 2020, 47(1): 120-128.
Mu Longxin, Chen Yaqiang, Xu Anzhu, et al. Technological progress and development directions of PetroChina overseas oil and gas field production[J]. Petroleum Exploration and Development, 2020, 47(1): 120-128.
[16] 张俊法, 曾大乾, 张广权, 等. 超高压气藏改建储气库注采能力及库容评价：以川东北清溪储气库为例[J]. 断块油气田, 2021, 28(6): 775-780.
Zhang Junfa, Zeng Daqian, Zhang Guanquan, et al. Injection-productivity and storage capacity evaluation for rebuilding gas storage based on ultra-high pressure gas reservoir: A case study of Qingxi gas storage in Northeast Sichuan[J]. Fault-Block Oil & Gas Field, 2021, 28(6): 775-780.
[17] 赵文君, 刘堂晏, 孟贺. 有效压力对渗透率和地层因素的影响分析[J]. 测井技术, 2020, 44(1): 32-37.
Zhao Wenjun, Liu Tangyan, Meng He. Analysis of the effects of effective pressure on permeability and formation factor[J]. Well Logging Technology, 2020, 44(1): 32-37.
[18] 胥洪成, 张士杰, 李翔, 等. 气藏改建储气库下限压力设计新方法[J]. 天然气地球科学, 2020, 31(11): 1648-1653.
Xu Hongcheng, Zhang Shijie, Li Xiang, et al. A new design method of minimum storage pressure of underground gas storage rebuilt from gas reservoir[J]. Natural Gas Geoscience, 2020, 31(11): 1648-1653.