| 低渗透复杂断块砂西E_3~1油藏开发调整优化研究 |
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| 引用本文： | 魏金兰,廖春,张煜,李虹,宋祖勇,林益康.低渗透复杂断块砂西E_3~1油藏开发调整优化研究[J].石油地质与工程,2014,28(5). |
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| 作者姓名： | 魏金兰 廖春 张煜 李虹 宋祖勇 林益康 |
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| 作者单位： | 1. 中国石油青海油田公司探勘开发研究院,甘肃敦煌,736202
2. 中国石油青海油田公司采油一厂 |
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| 摘 要： | 砂西E31油藏经过长期开发,油藏面临油水井数比高、采出程度低,单井自然产量低、递减快,开采效果差的突出问题。为了改善开发效果,提高难采储量动用程度,在充分论证油藏开发潜力的基础上,通过精细构造解释,储层特征研究、测井二次解释、剩余油分布研究,提出了井网加密调整、油井转注、油水井措施为一体的综合调整方案。经现场实施,取得了较好开发效果,预测最终采收率较标定采收率提高2.3个百分点。
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| 关 键 词： | 砂西E31油藏 复杂断块油藏 开发对策 剩余油分布 |
Low permeability complex fault block Shaxi E_3~1 reservoir development adjustment and optimization study |
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| Abstract: | After a long period development,Shaxi E31 reservoir met some prominent problems,such as high injectors-producers ratio,low recovery degree,low natural production of single well,fast decline and poor production results.In order to improve development effect,enhance the producing degree of difficult recoverable reserves,based on full argument of reservoir development potential,through the fine structure interpretation,reservoir characteristics research,the second logging interpretation and remaining oil distribution,a comprehensive adjustment program combined with infill adjustment,oil wells transferring to water wells,and oil and water wells measurements has been proposed.Through field application,good development effect has been achieved.Compared with the calibration recovery,the predicted ultimate recovery can increase 2.3 percentage points. |
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| Keywords: | Shaxi E31 reservoir complex fault block reservoirs development strategies remaining oil distribution |
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