东海陆架盆地西湖凹陷油气开发技术及攻关方向

doi:10.13809/j.cnki.cn32-1825/te.2025.05.001

Abstract

Abstract:

In recent years, Sinopec Shanghai Offshore Oil & Gas Company has continuously carried out exploration and development practices in the Xihu Sag of East China Sea Shelf Basin. In the face of high geological uncertainties caused by sparse wells and limited data offshore and engineering difficulties brought by constrained platform space and limited coverage, along with the significant challenges of high investment and high risk in offshore oil and gas development and exceptionally complex reservoir types in the Xihu Sag, multiple engineering technologies tailored to the characteristics of offshore development have been innovatively developed. The development technology for offshore low-permeability tight gas reservoirs has preliminarily achieved balanced production in strongly heterogeneous, low-permeability tight gas reservoirs. The integrated “rolling evaluation and development” technology for offshore scattered reserves has enabled the effective utilization and cost-effective development of scattered reserves in the East China Sea. The integrated and efficient “rolling evaluation and adjustment” technology for mature areas fully considers the three objectives of rolling exploration, evaluation, and adjustment, and achieves a comprehensive and multidimensional deployment, with implementation results far exceeding expectations. The full-lifecycle enhanced oil recovery technology for offshore water-bearing gas reservoirs effectively controls the water invasion rates in edge-bottom water gas reservoirs, and significantly extends the production lifespan of gas wells. The promotion and application of these technologies enables increased oil and gas reserves, production, and efficient development in the Xihu Sag of East China Sea Shelf Basin, providing a reference for the efficient development of offshore oil and gas fields both in China and abroad. For the efficient development of low-permeability tight reservoirs in the East China Sea, effective utilization of marginal and scattered reserves, and enhanced oil recovery in conventional edge-bottom water gas reservoirs, there are still challenges in theoretical innovation and technological breakthroughs. It is urgent to tackle key technical challenges such as efficient development technologies for low-permeability tight gas reservoirs, engineering technologies for long-distance reserve development around platforms, residual gas characterization in water-bearing gas reservoirs, and integrated utilization of multiple resources in the Xihu Sag, with the aim of continuously promoting the efficient and high-quality development of oil and gas resources in the Xihu Sag of East China Sea.

Key words: Xihu Sag of East China Sea, offshore oil and gas, low-permeability tight reservoirs, integrated “rolling evaluation and development”, edge-bottom water gas reservoirs

CLC Number:

TE53

ZHAO Yong,LI Jiudi,YAN Shumei, et al. Oil and gas development technologies and research directions in Xihu Sag of East China Sea Shelf Basin[J]. Petroleum Reservoir Evaluation and Development, 2025, 15(5): 711-721.

Figures/Tables 7

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

Fig.6

Fig.7

References 27

[1]	王贺林. 海上油气田油藏评价和开发技术研究: 以大港油田关家堡油藏为例[D]. 成都: 成都理工大学, 2006.
	WANG Helin. The research of reservior appraisal and development technology for offshore oilfield[D]. Chengdu: Chengdu University of Technology, 2006.
[2]	罗宪波. 海上砂砾岩油藏层间与层内干扰实验研究[J]. 油气藏评价与开发, 2024, 14(1): 117-123.
	LUO Xianbo. Laboratory experiment on interlayer and intralayer interference in offshore sandy conglomerate reservoir[J]. Petroleum Reservoir Evaluation and Development, 2024, 14(1): 117-123.
[3]	周守为. 海上油田高效开发技术探索与实践[J]. 中国工程科学, 2009, 11(10): 55-60.
	ZHOU Shouwei. Exploration and practice of offshore oilfield effective development technology[J]. Strategic Study of CAE, 2009, 11(10): 55-60.
[4]	张乐, 刘长龙, 寇磊, 等. 海上油田大斜度井缆控智能分层注聚技术研究及应用[J]. 油气藏评价与开发, 2024, 14(1): 133-137.
	ZHANG Le, LIU Changlong, KOU Lei, et al. Research and application of intelligent polymer injection technology with cable control for high angle wells in offshore oilfield[J]. Petroleum Reservoir Evaluation and Development, 2024, 14(1): 133-137.
[5]	周守为. 海上稠油高效开发新模式研究及应用[J]. 西南石油大学学报, 2007, 29(5): 1-4.
	ZHOU Shouwei. The study and application of new mode of effective development of offshore heavy oil field[J]. Journal of Southwest Petroleum University, 2007, 29(5): 1-4.
[6]	黄琴, 蔡晖, 桑丹, 等. 海上稠油油田水平井多轮蒸汽吞吐生产规律研究[J]. 非常规油气, 2023, 10(2): 76-79.
	HUANG Qin, CAI Hui, SANG Dan, et al. Study on development law of horizontal well multiple cyclic steam stimulation for offshore heavy oilfields[J]. Unconventional Oil & Gas, 2023, 10(2): 76-79.
[7]	王志中. 海上气田开发评价中合理井距确定方法[J]. 天然气勘探与开发, 2024, 47(2): 61-67. doi: 10.12055/gaskk.issn.1673-3177.2024.02.007
	WANG Zhizhong. Methods for determining reasonable well spacing in evaluation on offshore gasfield development[J]. Natural Gas Exploration and Development, 2024, 47(2): 61-67. doi: 10.12055/gaskk.issn.1673-3177.2024.02.007
[8]	黄导武, 黄召, 段冬平, 等. 西湖凹陷深层低渗砂岩气藏高效开发关键技术及应用成效[J]. 中国海上油气, 2025, 37(1): 103-115.
	HUANG Daowu, HUANG Zhao, DUAN Dongping, et al. Key technologies for efficient development of deep low-permeability sandstone gas reservoirs and their application effectiveness in Xihu Sag[J]. China Offshore Oil and Gas, 2025, 37(1): 103-115.
[9]	范廷恩. 中国海上低渗油气田开发历程、关键技术及攻关方向[J]. 中国海上油气, 2024, 36(3): 95-109.
	FAN Ting’en. Development process, key technologies and research direction of China’s offshore low-permeability oil and gas field[J]. China Offshore Oil and Gas, 2024, 36(3): 95-109.
[10]	胡文瑞, 张书通, 徐思源, 等. 中国油气田开发实践、挑战与展望[J]. 中国石油勘探, 2024, 29(5): 1-11. doi: 10.3969/j.issn.1672-7703.2024.05.001
	HU Wenrui, ZHANG Shutong, XU Siyuan, et al. Practice, challenges and prospects of oil and gas field development in China[J]. China Petroleum Exploration, 2024, 29(5): 1-11. doi: 10.3969/j.issn.1672-7703.2024.05.001
[11]	王家航, 褚道余, 李基伟, 等. 西湖凹陷储层保护施工门限探讨[J]. 海洋石油, 2021, 41(2): 48-53.
	WANG Jiahang, CHU Daoyu, LI Jiwei, et al. Discussion on threshold value of reservoir protection in Xihu Sag[J]. Offshore Oil, 2021, 41(2): 48-53.
[12]	杜鹏, 谢中成, 黄召, 等. 长裸眼油基钻井液完井投产技术研究及应用[J]. 海洋石油, 2024, 44(4): 77-82.
	DU Peng, XIE Zhongcheng, HUANG Zhao, et al. Research and application of long open hole oil based drilling fluid completion and production technology[J]. Offshore Oil, 2024, 44(4): 77-82.
[13]	王友春. 东海气田高低压层分采一体化射孔技术[J]. 油气井测试, 2022, 31(6): 22-26.
	WANG Youchun. Integrated perforating technology for separate production of high and low pressure layers in East China Sea gas field[J]. Well Testing, 2022, 31(6): 22-26.
[14]	马薛丽. 海上低渗气藏自生酸酸液体系及酸化工艺优化研究[D]. 成都: 西南石油大学, 2019.
	MA Xueli. Study on optimization of self-generating acid system and acidizing process in offshore low permeability gas reservoir[D]. Chengdu: Southwest Petroleum University, 2019.
[15]	熊振宇, 陈进程, 汪珂欣, 等. 东海大位移井钻井井漏特征分析及风险识别[J]. 石油地质与工程, 2024, 38(6): 102-106.
	XIONG Zhenyu, CHEN Jincheng, WANG Kexin, et al. Analysis of lost circulation characteristics and risk identification of large displacement well in East China Sea[J]. Petroleum Geology and Engineering, 2024, 38(6): 102-106.
[16]	张海山. 中国海洋石油大位移井钻井技术现状及展望[J]. 石油钻采工艺, 2023, 45(1): 1-11.
	ZHANG Haishan. Status and prospect of CNOOC's extended reach well drilling technologies[J]. Oil Drilling & Production Technology, 2023, 45(1): 1-11.
[17]	李乾, 王磊, 王喜杰, 等. 东海大位移水平井降摩减阻技术研究与实践[J]. 中国海上油气, 2022, 34(6): 149-156.
	LI Qian, WANG Lei, WANG Xijie, et al. Research and practice of friction and drag reduction technology for extended reach horizontal wells in the East China Sea[J]. China Offshore Oil and Gas, 2022, 34(6): 149-156.
[18]	左宏刚, 何福耀, 严维锋, 等. 超深大位移井井筒清洁技术及工程实践[J]. 石油化工应用, 2020, 39(2): 92-97.
	ZUO Honggang, HE Fuyao, YAN Weifeng, et al. Research and engineering practice on wellbore cleaning technology for ultra deep and large displacement wells[J]. Petrochemical Industry Application, 2020, 39(2): 92-97.
[19]	姜韡, 李基伟, 张瑞, 等. 东海西湖凹陷安全高效钻井技术优化研究[J]. 海洋石油, 2021, 41(4): 57-62.
	JIANG Wei, LI Jiwei, ZHANG Rui, et al. Study on optimization of safe and efficient drilling technology in Xihu Sag of East China Sea[J]. Offshore Oil, 2021, 41(4): 57-62.
[20]	杨民鑫, 赵晓明, 梁岳立, 等. 基于分频RGB融合技术的储层构型精细解剖: 以东海盆地西湖凹陷渐新统花港组为例[J]. 天然气地球科学, 2024, 35(7): 1323-1338. doi: 10.11764/j.issn.1672-1926.2023.11.004
	YANG Minxin, ZHAO Xiaoming, LIANG Yueli, et al. Fine anatomy of reservoir architecture based on frequency division RGB fusion technology: A case study of the Oligocene Huagang Formation in Xihu Depression, East Sea Basin[J]. Natural Gas Geoscience, 2024, 35(7): 1323-1338. doi: 10.11764/j.issn.1672-1926.2023.11.004
[21]	岳大力, 李伟, 王军, 等. 基于分频融合地震属性的曲流带预测与点坝识别: 以渤海湾盆地埕岛油田馆陶组为例[J]. 古地理学报, 2018, 20(6): 941-950. doi: 10.7605/gdlxb.2018.06.068
	YUE Dali, LI Wei, WANG Jun, et al. Prediction of meandering belt and point-bar recognition based on spectral-decomposed and fused seismic attributes: A case study of the Guantao Formation, Chengdao Oilfield, Bohai Bay Basin[J]. Journal of Palaeogeography (Chinese Edition), 2018, 20(6): 941-950.
[22]	李顺明, 宋新民, 蒋有伟, 等. 高尚堡油田砂质辫状河储集层构型与剩余油分布[J]. 石油勘探与开发, 2011, 38(4): 474-482.
	LI Shunming, SONG Xinmin, JIANG Youwei, et al. Architecture and remaining oil distribution of the sandy braided river reservoir in the Gaoshangpu Oilfield[J]. Petroleum Exploration and Development, 2011, 38(4): 474-482.
[23]	孙天建, 穆龙新, 吴向红, 等. 砂质辫状河储层构型表征方法: 以苏丹穆格莱特盆地Hegli油田为例[J]. 石油学报, 2014, 35(4): 715-724. doi: 10.7623/syxb201404012
	SUN Tianjian, MU Longxin, WU Xianghong, et al. A quantitative method for architectural characterization of sandy braided-river reservoirs: Taking Hegli oilfield of Muglad Basin in Sudan as an example[J]. Acta Petrolei Sinica, 2014, 35(4): 715-724. doi: 10.7623/syxb201404012
[24]	赵勇. 西湖凹陷高效开发调整策略与实践[J]. 海洋石油, 2023, 43(4): 1-7.
	ZHAO Yong. Strategies and practices of efficient development and adjustment in Xihu Sag[J]. Offshore Oil, 2023, 43(4): 1-7.
[25]	李久娣, 田彬. 东海水驱气藏开发特征及开发对策实践[J]. 海洋石油, 2023, 43(4): 8-12.
	LI Jiudi, TIAN Bin. Development characteristics and countermeasures practice of water drive gas reservoir in East China Sea[J]. Offshore Oil, 2023, 43(4): 8-12.
[26]	田彬, 王健伟, 李久娣, 等. 基于井筒携液实验的临界携液流量预测方法[J]. 复杂油气藏, 2022, 15(1): 91-95.
	TIAN Bin, WANG Jianwei, LI Jiudi, et al. A critical liquid-carrying flow prediction method based on wellbore liquid-carrying experiment[J]. Complex Hydrocarbon Reservoirs, 2022, 15(1): 91-95.
[27]	刘俊民, 张关龙, 赵乐强, 等. 胜利探区油气共/伴生资源综合利用前景[J]. 油气地质与采收率, 2024, 31(4): 207-216.
	LIU Junmin, ZHANG Guanlong, ZHAO Leqiang, et al. Prospects for comprehensive utilization of symbiotic/associated oil and gas resources in exploration area of Shengli Oilfield[J]. Petroleum Geology and Recovery Efficiency, 2024, 31(4): 207-216.

Oil and gas development technologies and research directions in Xihu Sag of East China Sea Shelf Basin

RichHTML

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 7

References 27

Related Articles 2

Metrics

Comments

Recommended 0

[1]	LI Jiudi, TIAN Bin, LI Jiwei, WANG Jianwei, ZHAO Tianpei, DING Li. Practices and insights of low-permeability gas reservoir development in East China Sea [J]. Petroleum Reservoir Evaluation and Development, 2025, 15(5): 734-739.
[2]	CHEN Hongju, LIU Qiang, SUN Lili, YU Hang. Status and prospects of low carbon development in offshore oil and gas industry [J]. Petroleum Reservoir Evaluation and Development, 2024, 14(6): 981-989.