两套不同物性、长跨距油层合采配套工艺技术研究
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- 英文论文题名：Research on Matching Technology of Commingled Production for Two Sets of Long Span Oil Layers with Different Physical Properties
- 论文作者：李庆东
- 英文论文作者：Li Qingdong
- 年：2016
- 作者机构：大庆油田有限责任公司第五采油厂;
- 论文关键词：长跨距 ; 不同物性 ; 油层 ; 合采 ; 工艺
- 英文论文关键词：long span ; different physical properties ; oil layers ; commingled production ; technology
- 会议召开时间：2016-09-01
- 会议录名称：《采油工程文集》2016年第3辑
- 英文会议录名称：Oil Production Engineering
- 语种：中文
- 分类号：TE355
- 学会代码：DQGY
- 学会名称：大庆油田有限责任公司采油工程研究院
- 页数：5
- 文件大小：1111k
- 原文格式：D
摘要
针对两套油层物性差异大、跨度大、单独开采任何一套层系经济效益差的问题,研究了一套井网有效动用两套油层的注水、采油和测试技术。利用有限元分析方法,提出了两套不同物性、长跨距油层经济技术评价方法,针对以下3个难点开展了研究:一是两套油层吸水能力差异大;二是现有举升工艺难以克服层间干扰;三是现有采油工艺无法解决两套油层分层段产量和压力测试问题。解决方案为:采用偏心节流配水工艺解决了两套油层吸水能力差异大的问题;采用单泵分采工艺解决了举升工艺中的层间干扰;采用液面恢复法—井口模拟回压标准罐量油工艺解决了两套油层分层段产量、含水率和压力测试问题。该技术为两套不同物性、长跨距油层经济开发提供了有力的技术保障。
When the two sets of oil layers have different physical properties, large span, and the separate oil production development for either of the two may lead to poor economic benefits. Therefore, a set of new well patterns has been studied to carry out the water injection, oil production and test simultaneously for the two sets of oil layers effectively. By using the analysis method of finite element, the economic and technical evaluation method for two sets of long span oil layers with different physical properties has been put forward, aimed at solving the following three problems: there are large differences of water absorption capacity between two sets of oil layers; the interlayer interference is difficult to overcome with the existing lifting technology; the testing of separate oil production and reservoir pressure in two sets of oil layers could not be measured by current production technology. The solutions for the questions are: the eccentric throttle water distribution technology has been adopted to solve the differences of water absorption capacity between two sets of reservoirs; the separate production technique with single pump has solved the interlayer interference in the artificial lifting; the liquid level recovery method—standard tank measuring the production technology with simulating wellhead pressure to measure the separated production, water cut and pressure of two sets of reservoirs. The technique has provided the technical support for the economic development of two sets of long span reservoirs with different physical properties.
When the two sets of oil layers have different physical properties, large span, and the separate oil production development for either of the two may lead to poor economic benefits. Therefore, a set of new well patterns has been studied to carry out the water injection, oil production and test simultaneously for the two sets of oil layers effectively. By using the analysis method of finite element, the economic and technical evaluation method for two sets of long span oil layers with different physical properties has been put forward, aimed at solving the following three problems: there are large differences of water absorption capacity between two sets of oil layers; the interlayer interference is difficult to overcome with the existing lifting technology; the testing of separate oil production and reservoir pressure in two sets of oil layers could not be measured by current production technology. The solutions for the questions are: the eccentric throttle water distribution technology has been adopted to solve the differences of water absorption capacity between two sets of reservoirs; the separate production technique with single pump has solved the interlayer interference in the artificial lifting; the liquid level recovery method—standard tank measuring the production technology with simulating wellhead pressure to measure the separated production, water cut and pressure of two sets of reservoirs. The technique has provided the technical support for the economic development of two sets of long span reservoirs with different physical properties.
引文
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[2]《采油技术手册》编写组.采油技术手册[M].北京:石油化学工业出版社,1977.
[3]王鸿勋,张琪.采油工艺原理[M].北京:石油工业出版社,1989.
[4]彭晖,刘玉章,冉启全,等.致密储层不同储渗模式下生产特征研究[J].西南石油大学学报,2015,37(5):133-138.
[5]贾承造,邹才能,李建忠,等.中国致密油评价标准、主要类型、基本特征及资源前景[J].石油学报,2012,33(3):343-350.
[6]陈海波.基于连续流量测试的小卡距细分注水工艺[G]//大庆油田有限责任公司采油工程研究院.采油工程文集2015年第3辑.北京:石油工业出版社,2015:58-62.
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