绥中36-1油田成藏条件及勘探开发关键技术

doi:10.7623/syxb202111012

石油学报 ›› 2021, Vol. 42 ›› Issue (11): 1531-1542.DOI: 10.7623/syxb202111012

绥中36-1油田成藏条件及勘探开发关键技术

薛永安, 郭涛, 刘宗斌, 于海波, 王德英, 周园园

中海石油(中国)有限公司天津分公司天津 300452

收稿日期:2021-03-22 修回日期:2021-09-12 出版日期:2021-11-25 发布日期:2021-12-01
作者简介:薛永安,男,1963年10月生,1987年获武汉地质学院石油地质专业学士学位,2008年获中国地质大学(北京)矿产普查与勘探专业博士学位,现为中海石油(中国)有限公司天津分公司教授级高级工程师、渤海石油管理局总地质师、享受国务院政府特殊津贴专家,长期从事海上油气勘探研究和管理工作。Email:xueya@cnooc.com.cn
基金资助:
国家科技重大专项"渤海海域勘探新领域及关键技术研究"（2016ZX05024-003）资助。

Accumulation conditions and key technologies for exploration and development of Suizhong 36-1 oilfield

Xue Yong'an, Guo Tao, Liu Zongbin, Yu Haibo, Wang Deying, Zhou Yuanyuan

Tianjin Branch of CNOOC China Limited, Tianjin 300452, China

Received:2021-03-22 Revised:2021-09-12 Online:2021-11-25 Published:2021-12-01

摘要/Abstract

摘要： 绥中36-1油田是渤海湾陆相断陷湖盆中最大的古近系东营组油田，具有埋藏浅、规模大、层系单一、油品较稠等油藏特征。自1987年钻探发现以来，历经油藏评价阶段、产能建设阶段、综合调整阶段，截至2020年底，累计探明石油地质储量3.05×10⁸t，累计生产原油9 000×10⁴t，目前稳产350×10⁴t/a以上。充足油源供给、优质储-盖组合、优势运移通道和良好保存条件是绥中36-1油田形成的关键地质条件，其中，邻近的极富烃辽中凹陷为绥中36-1油田提供充足的油源，东营组二段最大湖泛期沉积的泥岩与三角洲砂岩形成优质储-盖组合，NE向继承性发育的伸展-走滑大断裂控圈、封闭能力强，继承性鼻状构造与烃源岩大面积接触构成了油气向圈闭运聚的高速公路。针对海上首个大型整装稠油油藏形成的海上大型三角洲稠油试验区开发技术、海上稠油油田综合调整技术组合等系列实用性关键技术为绥中36-1油田的开发和产能建设提供了技术保障。

关键词: 绥中36-1, 大型油田, 成藏条件, 富烃凹陷, 伸展-走滑大断裂

Abstract: Suizhong 36-1 oilfield is the largest oilfield in the Paleogene Dongying Formation in the continental faulted Bohai Bay Basin, characterized by shallow burial, large scale, single layer series and heavy oil. Since the discovery of drilling in 1987, Suizhong 36-1 oilfiled has experienced the stages of oil reservoir evaluation, productivity construction and comprehensive adjustment. By the end of 2020, the cumulative proved geological reserves reached 3.05×10⁸t and the cumulative production of crude oil amounted to 9 000×10⁴t. At present, the stable yield is above 350×10⁴t/a. Adequate oil source supply, high quality reservoir-cap combination, favorable migration pathway and good preservation conditions are the key geological conditions for the formation of Suizhong 36-1 oilfiled. Specifically, the adjacent Liaozhong sag with extremely rich hydrocarbon resources provides sufficient oil source for Suizhong 36-1 oilfiled, a high quality reservoir-cap combination is formed by mudstone and delta sandstone deposited in the largest lake flooding period in the second member of Dongying Formation, the extensional strike-slip fault with inherited development in NE direction has strong trap-controlling and sealing ability, and a large-area contact between the inherited nose structure and source rock form a highway for hydrocarbon migration to traps. Additionally, a series of practical key technologies, such as the development technology of the first offshore large-scale delta heavy oil test area formed by large integrated heavy oil reservoirs, and the comprehensive adjustment technologies combination of offshore heavy oil fields, provide technical support for the development and productivity construction of Suizhong 36-1 oilfiled.

Key words: Suizhong 36-1 oilfiled, large oilfield, accumulation conditions, hydrocarbon-rich sag, extensional strike-slip fault

中图分类号:

TE122

薛永安, 郭涛, 刘宗斌, 于海波, 王德英, 周园园. 绥中36-1油田成藏条件及勘探开发关键技术[J]. 石油学报, 2021, 42(11): 1531-1542.

Xue Yong'an, Guo Tao, Liu Zongbin, Yu Haibo, Wang Deying, Zhou Yuanyuan. Accumulation conditions and key technologies for exploration and development of Suizhong 36-1 oilfield[J]. Acta Petrolei Sinica, 2021, 42(11): 1531-1542.

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绥中36-1油田成藏条件及勘探开发关键技术

Accumulation conditions and key technologies for exploration and development of Suizhong 36-1 oilfield

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