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埕岛极浅海油田高速高效开发调整关键技术
束青林,张本华,高喜龙,张伟丰,王志伟,刘衍聪,张在振
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(1.中国石化胜利油田分公司油气开发管理中心,山东东营257000;2.中国石化胜利油田分公司海洋采油厂,山东东营257237;3.中国石化胜利油田分公司油气销售中心,山东东营257000;4.中国石油大学胜利学院,山东东营257061)
摘要:
埕岛油田是“九五”期间建成的年产油量为217×104 t的极浅海大油田,自进入中高含水期以来,开发矛盾凸显,海工配套条件不能满足油田持续稳产上产要求,产油量大幅下滑,年递减率为2.5%,开发调整势在必行。针对制约埕岛油田持续稳产上产的关键问题,从油藏地质、钻完井工艺、注采输工艺、海工配套及平台延寿等方面持续立项研究攻关,形成了6个方面12项开发调整关键技术,实现了极浅海河流相薄储层精细描述及超大规模精细地质建模,攻关配套了密槽口大斜度丛式井钻完井及多层复杂压降剖面油层保护工艺、大斜度长井段细分长效注水及测调一体化工艺、大斜度长井段分层高导流防砂及长寿命高效举升工艺,研发了多井口采修一体化平台及短流程高效油气水处理技术,构建了极浅海复杂环境平台结构检测评估及加固延寿技术。以上技术的成功应用,保障了埕岛油田规模层系细分、井网加密开发调整的高速高效实施,2019年产油量达到336×104 t。
关键词:  极浅海油田  规模开发调整  关键技术  储层描述  平台延寿  高速高效
DOI:10.13673/j.cnki.cn37-1359/te.2020.03.001
基金项目:国家科技重大专项“胜利油田特高含水期提高采收率技术(二期)”(2016ZX05011)。
Key technologies of high-speed and high-efficiency development and adjustment of Chengdao shallower sea oilfield
SHU Qinglin,ZHANG Benhua,GAO Xilong,ZHANG Weifeng,WANG Zhiwei,LIU Yancong,ZHANG Zaizhen
(1.Oil and Gas Development Management Center,Shengli Oilfield Company,SINOPEC,Dongying City,Shandong Province, 257000,China;2.Marine Oil Production Plant,Shengli Oilfield Company,SINOPEC,Dongying City,Shandong Province, 257237,China;3.Oil and Gas Sales Center,Shengli Oilfield Company,SINOPEC,Dongying City,Shandong Province, 257000,China;4.Shengli College China University of Petroleum,Dongying City,Shandong Province,257061,China)
Abstract:
Chengdao Oilfield is a large shallower sea oilfield with an annual output of 217×104 t during the Ninth Five-Year Plan period. Since the reservoir showing the middle to high water-cut state,the development contradictions have become prominent. The offshore engineering supporting conditions cannot meet the continuous and stable production requirements of the oilfield,and the oil production has declined significantly with an annual decline rate of 2.5%. Therefore,the development adjustment is imperative. In view of the key problems restricting the continuous and stable production of Chengdao Oilfield,the key technologies of development and adjustment are developed in 6 aspects and 12 items through continuous research on the following aspects:reservoir geology,drilling and completion technology,injection-production and transportation technology,offshore engineering support,and platform life extension. The thin reservoir of fluvial facies in shallower sea is described and the geologic modeling at oilfield scale is established in details. The dense cluster drilling and completion technology for high angle cluster well and protection technology for multizone reservoir with complex pressure-drop profile,zonal water injection technology for high-angle well with long-interval,measurement and adjustment integration technology,high-efficiency zonal sand control and long-life high-efficiency lifting production technologies for high-angle well with long-interval are developed. The integration platform for oil and gas production and well repair and high-efficiency oil-gas-water treatment technology are developed as well. Platform testing and reinforcement technology for life extension in complex shallower sea environment are constructed. The successful application of the above technologies has ensured the high-speed and efficient implementation of scale subdivision of strata and well patterns adjustment in Chengdao Oilfield. The oil production reached 336×104 t in 2019.
Key words:  shallower sea oilfield  scale development adjustment  key technologies  reservoir description  platform life extension  high-speed and high-efficiency

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