储层电阻率校正模型在低饱和度油藏油水层识别中的应用
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摘要
L油田S油层属构造-岩性油藏,为中孔、低渗、低饱和度油藏,油水层识别的难度较大。为解决油水层识别的难题,研究确定该油田油水层识别的主要影响因素是泥质、钙质。为消除泥质、钙质对油水层识别的影响,研制了基于并联导电原理的层状储层电阻率泥质校正模型、钙质校正模型和泥质钙质校正模型共三个电阻率校正理论模型,应用自然电位与校正后的电阻率建立油水层识别图版。实际应用效果表明,本文提出的电阻率校正模型可以提高油水层识别图版的精度。本文研究结果表明,储层电阻率校正模型是提高低饱和度油藏油水层识别精度的有效方法之一。
The Sreservoir in Loilfield is a structural-lithologic reservoir, which is a medium porosity, low permeability and low saturation reservoir. It is more difficult to identify the oil-water layer. To solve the problem of oil and water layer identification,shale and calcium were determined to be the main factors affecting the identification of oil and water layer in the oil field. To eliminate the influence of shale and calcium on the identification of oil and water layers, three resistivity correction theoretical model of shale, calcium, shale & calcium in laminar reservoir were developed based on parallel conduction principle.Spontaneous potential and corrected resistivity were used to establish oil and water layer recognition chart. The result showed that the accuracy of oil and water layer interpretation chartwas improved by the resistivity correction model.The results of this study showed that reservoir resistivity correction model is one of the effective methods to improve the recognition accuracy of oil and water layer in low saturation reservoir.
The Sreservoir in Loilfield is a structural-lithologic reservoir, which is a medium porosity, low permeability and low saturation reservoir. It is more difficult to identify the oil-water layer. To solve the problem of oil and water layer identification,shale and calcium were determined to be the main factors affecting the identification of oil and water layer in the oil field. To eliminate the influence of shale and calcium on the identification of oil and water layers, three resistivity correction theoretical model of shale, calcium, shale & calcium in laminar reservoir were developed based on parallel conduction principle.Spontaneous potential and corrected resistivity were used to establish oil and water layer recognition chart. The result showed that the accuracy of oil and water layer interpretation chartwas improved by the resistivity correction model.The results of this study showed that reservoir resistivity correction model is one of the effective methods to improve the recognition accuracy of oil and water layer in low saturation reservoir.
引文
[1]刘柏林、李治平、匡松远等,低含油饱和度油藏油水渗流特征—以准噶尔盆地中部1区块为例[J],油气地质与采收率,2007,14(1):69-72.
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[4]闫伟林、崔宝文、殷树军,苏德尔特油田布达特群潜山油藏裂缝储层测井评价[J],油气地质与采收率2007,14(5):26-30.
[5]何雨丹、肖立志、毛志强等,测井评价“三低”油气藏面临的挑战和发展方向[J],地球物理学进展,2005,20(2):282-288.
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[7]燕继成,齐家-古龙地区高台子致密储层物性下限确定方法[J],大庆石油地质与开发,2016,35(1):131-135.
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[10]石宁宁,面向岩石物理建模的测井解释方法[J],国外测井技术,2014,29(1):20-22.
[11]刘丽琼、文环明、彭国力等,低阻油层识别方法研究[J],河南石油,1998,12(5):8-11.
[12]李郑辰、徐广田、宋延杰,几种常用原始含油饱和度测井解释模型对比分析[J],石油工业计算机应用,2017,25(2):30-33.
[13]任培罡、张娟、王玮,X地区测井电阻率校正方法研究[J],化学工程与装备,2016,45(4):195-197.
[14]Review of existing shaly sand evaluation models and introduction of a new method based on dry clay parameters[C]//SPWLA 52nd Annual Logging Symposium,2011.
[2]欧阳健、毛志强、修立军等,测井低对比度油层成因机理与评价方法[M],北京:石油工业出版社,2009,1-3.
[3]赵杰、王宏键、王鹏等,大庆探区复杂储层测井综合评价技术[J],中国石油勘探,2004,9(4):49-54.
[4]闫伟林、崔宝文、殷树军,苏德尔特油田布达特群潜山油藏裂缝储层测井评价[J],油气地质与采收率2007,14(5):26-30.
[5]何雨丹、肖立志、毛志强等,测井评价“三低”油气藏面临的挑战和发展方向[J],地球物理学进展,2005,20(2):282-288.
[6]陈木银、冯春珍、文晓峰等,某油田长3低渗透低电阻率油层分析与识别方法[J],测井技术,2014,38(3):315-320.
[7]燕继成,齐家-古龙地区高台子致密储层物性下限确定方法[J],大庆石油地质与开发,2016,35(1):131-135.
[8]张建荣,复杂砂岩储层测井解释方法研究[J],石油天然气学报,2006,28(6):91-93.
[9]李薇、田中元、闫伟林等,Y油田低电阻率油层形成机理及RRSR识别方法[J],石油勘探与开发,2005,32(1):60-62.
[10]石宁宁,面向岩石物理建模的测井解释方法[J],国外测井技术,2014,29(1):20-22.
[11]刘丽琼、文环明、彭国力等,低阻油层识别方法研究[J],河南石油,1998,12(5):8-11.
[12]李郑辰、徐广田、宋延杰,几种常用原始含油饱和度测井解释模型对比分析[J],石油工业计算机应用,2017,25(2):30-33.
[13]任培罡、张娟、王玮,X地区测井电阻率校正方法研究[J],化学工程与装备,2016,45(4):195-197.
[14]Review of existing shaly sand evaluation models and introduction of a new method based on dry clay parameters[C]//SPWLA 52nd Annual Logging Symposium,2011.