异常高压油藏开发方式及渗流特征室内研究
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摘要
根据有效压力原理,通过实验和加压方式的变化,模拟在不同开发方式下,地层压力下降不同时对储层伤害的影响。通过岩心在不同受力情况下的变形特征及渗流特性分析认为:对异常高压油藏,可以通过改变初期油井工作制度(如开关井、控制采油速度、减小快速开采)引起的压力快速下降,减小对储层的伤害,进而减小对油井产能的影响。文中研究结果为此类油藏科学合理的开发提供了理论依据。
According to the effective pressure theory, the influence of different pressure drop on reservoir damage under different development methods is simulated by experiment and pressing mode. By analyzing the deformation and seepage characteristics of core under different effective pressure, it is considered that for the abnormal high pressure reservoir, by changing the work system for initial oil well, such as opening-shutting well, controlling the oil production rate and reducing the rapid extraction, the reservoir damage caused by fast pressure drop and the influence of oil well productivity can be reduced. Study results can provide theoretical basis for the scientific and reasonable development of such reservoir.
According to the effective pressure theory, the influence of different pressure drop on reservoir damage under different development methods is simulated by experiment and pressing mode. By analyzing the deformation and seepage characteristics of core under different effective pressure, it is considered that for the abnormal high pressure reservoir, by changing the work system for initial oil well, such as opening-shutting well, controlling the oil production rate and reducing the rapid extraction, the reservoir damage caused by fast pressure drop and the influence of oil well productivity can be reduced. Study results can provide theoretical basis for the scientific and reasonable development of such reservoir.
引文
[1]秦积舜.变围压条件下低渗砂岩储层渗透率变化规律研究[J].西安石油学院学报,2002,17(4):28-35.
[2]王江,王玉英.异常高压低渗透油藏储层压力敏感性研究[J].大庆石油地质与开发,2003,22(5):28-31.
[3]张兴焰,闫志军,李淑梅,等.压敏效应对文东异常高压低渗油田开发的影响[J].大庆石油地质与开发,2005,24(2):55-56.
[4]黄小亮,李继强,雷登生,等.应力敏感性对低渗透气井产能的影响[J].断块油气田,2014,21(6):786-789.
[5]郭晶晶,张烈辉,涂中.异常高压气藏应力敏感性及其对产能的影响[J].特种油气藏,2010,17(2):79-81.
[6]戈尔布诺夫A T.异常油田开发[M].张树宝,译.北京:石油工业出版社,1987:95-125.
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[8]郝春山,李治平,杨满平,等.变形介质的变形机理及物性特征研究[J].西南石油学院学报,2003,25(4):19-33.
[9]张浩,康毅力,陈一健,等.致密砂岩油气储层岩石变形理论与应力敏感性[J].天然气地球科学,2004,15(5):482-485.
[10]杨胜来,王小强,汪德刚,等.异常高压气藏岩石应力敏感性实验与模型研究[J].天然气工业,2005,25(2):107-109.
[11]冯鑫,李丰辉,侯东梅,等.异常高压油气藏储层物性随有效压力变化的研究[J].中国海上油气,2008,25(5):316-318.
[12]黄延章.低渗透油层非线性渗流特征[J].特种油气藏,1997,4(1):10-14.
[13]朱绍鹏,劳业春,杨志兴,等.一种新的压敏油藏产能方程[J].中国海上油气,2012,24(1):29-32.
[2]王江,王玉英.异常高压低渗透油藏储层压力敏感性研究[J].大庆石油地质与开发,2003,22(5):28-31.
[3]张兴焰,闫志军,李淑梅,等.压敏效应对文东异常高压低渗油田开发的影响[J].大庆石油地质与开发,2005,24(2):55-56.
[4]黄小亮,李继强,雷登生,等.应力敏感性对低渗透气井产能的影响[J].断块油气田,2014,21(6):786-789.
[5]郭晶晶,张烈辉,涂中.异常高压气藏应力敏感性及其对产能的影响[J].特种油气藏,2010,17(2):79-81.
[6]戈尔布诺夫A T.异常油田开发[M].张树宝,译.北京:石油工业出版社,1987:95-125.
[7]李传亮.油藏工程原理[M].北京:石油工业出版,2005:110-145.
[8]郝春山,李治平,杨满平,等.变形介质的变形机理及物性特征研究[J].西南石油学院学报,2003,25(4):19-33.
[9]张浩,康毅力,陈一健,等.致密砂岩油气储层岩石变形理论与应力敏感性[J].天然气地球科学,2004,15(5):482-485.
[10]杨胜来,王小强,汪德刚,等.异常高压气藏岩石应力敏感性实验与模型研究[J].天然气工业,2005,25(2):107-109.
[11]冯鑫,李丰辉,侯东梅,等.异常高压油气藏储层物性随有效压力变化的研究[J].中国海上油气,2008,25(5):316-318.
[12]黄延章.低渗透油层非线性渗流特征[J].特种油气藏,1997,4(1):10-14.
[13]朱绍鹏,劳业春,杨志兴,等.一种新的压敏油藏产能方程[J].中国海上油气,2012,24(1):29-32.