考虑非达西流动影响的底水气藏产能新方法
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摘要
针对国内外底水气藏实际开发特点,基于底水气藏气井具有3种渗流型态的实际流动特征,建立了底水气藏气井渗流模型,并推导了底水气藏气井的新产能公式,该公式在考虑非达西流动影响的前提下综合考虑了3种渗流模式。实例分析表明,新方法计算结果可信度高,与二项式方法相对误差较小,为1. 10%～3. 85%;新方法仅需输入气井储层与射孔完井数据而无需进行实际的稳定试井测试即可获得气井产能。研究成果为底水气藏气井产能计算开辟了新的途径,对水驱气藏的科学开发具有现实指导意义。
A seepage model considering the actual flow mechanisms of bottom-aquifer gas reservoir was established to improve the three seepage patterns of bottom-aquifer gas reservoir at home and abroad. A new gas well productivity equation for the bottom-aquifer gas reservoir was provided by considering the three seepage patters on the basis of non-Darcy flow mechanism. This research was applied to multiple gas reservoirs for field calculation. Result indicates that the new calculation shows a high reliability and the relative error between this new calculation and the binomial method is only from 1. 10% to 3. 85%. This new equation only requires gas well reservoir properties and perforation completion data to calculate gas well productivity without field stable well test data. This research could present a new way for the gas well productivity calculation in the bottom-aquifer gas reservoir and could also provide certain guidance for the efficient development of water-flooding gas reservoir.
A seepage model considering the actual flow mechanisms of bottom-aquifer gas reservoir was established to improve the three seepage patterns of bottom-aquifer gas reservoir at home and abroad. A new gas well productivity equation for the bottom-aquifer gas reservoir was provided by considering the three seepage patters on the basis of non-Darcy flow mechanism. This research was applied to multiple gas reservoirs for field calculation. Result indicates that the new calculation shows a high reliability and the relative error between this new calculation and the binomial method is only from 1. 10% to 3. 85%. This new equation only requires gas well reservoir properties and perforation completion data to calculate gas well productivity without field stable well test data. This research could present a new way for the gas well productivity calculation in the bottom-aquifer gas reservoir and could also provide certain guidance for the efficient development of water-flooding gas reservoir.
引文
[1]MUSKAT M,WYCKOFF R D.An approximate theory of water coning in oil production[J].Transactions of the Aime,1935,114(1):144-163.
[2]MEYER H I,GARDER A O.Mechanics of two immiscible fluids in porous media[J].Journal of Applied Physics,1954,25(11):1400-1406.
[3]SCHOLS R S.An empircal formula for the critical oil production rate[J].Erdoel Erdgas,1972,88(1):6-11.
[4]CHAPERON I.Theoretical study of coning toward horizontal and vertical wells in anisotropic formations:subcritical and critical rates[C].SPE15377,1986:2-5.
[5]ABASS H H,BASS D M.The critical production rate in water coning system[C].SPE17311,1988:2-4.
[6]李元生,李相方,藤赛男,等.近井地带高速非达西动边界对产能预测的影响[J].西南石油大学学报(自然科学版),2015,37(1):128-134.
[7]杨筱璧,李祖友,鲁敏蘅,等.高速非达西流气井产能方程的新形式[J].特种油气藏,2008,15(5):74-75.
[8]张烈辉,朱水桥,王坤,等.高速气体非达西渗流数学模型[J].新疆石油地质,2004,25(2):165-167.
[9]张庆辉,李相方,袁海菊,等.考虑非达西的半球面流气井产能公式推导[J].油气藏评价与开发,2011,1(5):1-4.
[10]范子菲.底水驱动油藏水平井产能公式研究[J].石油勘探与开发,1993,20(1):71-75.
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[12]袁淋,李晓平,任磊.低渗透气藏产水气井稳产能力研究[J].油气藏评价与开发,2016,6(1):24-28.
[13]艾爽,张同义,徐燕东.基于约束优化的高温高压气井产能评价方法[J].特种油气藏,2016,23(5):78-81.
[14]汪益宁,李洪,曹淑慧,等.各向异性底水油藏长水平井产能公式[J].油气地质与采收率,2016,23(4):108-111.
[15]何吉祥,姜瑞忠,毛瑜,等.致密气藏气水两相压裂水平井产能计算方法[J].岩性油气藏,2017,29(4):154-161.
[16]黄全华,童凯,陈冲,等.厚层气藏气井拟稳态产能研究[J].岩性油气藏,2017,29(6):148-153.
[17]张芨强,李晓平,袁淋,等.非达西渗流对低渗透气藏气水同产水平井产能的影响[J].岩性油气藏,2014,26(6):120-125.
[18]罗启源,李晓平,敖耀庭,等.气水同产水平井产能分析方法[J].新疆石油地质,2010,31(6):632-633.
[19]徐模,郭肖.低渗透气藏产水气井产能评价新方法[J].大庆石油地质与开发,2016,35(3):64-68.
[20]李龙龙,姚军,吴明录.考虑压裂液污染的低渗透垂直井产能计算[J].大庆石油地质与开发,2015,34(1):79-82.
[21]常元昊,乐平,姜汉桥,等.底水油藏多分支水平井水脊规律[J].断块油气田,2016,23(4):501-504.
[22]陆家亮,涂梅桂,刘晓华,等.产水气井稳定点二项式产能方程及其应用[J].科学技术与工程,2016,16(6):66-69.
[23]张辉,王磊,汪新光,等.异常高压气藏气水两相流井产能分析方法[J].石油勘探与开发,2017,44(2):258-262.
[24]张睿,孙兵,秦凌嵩,等.气井见水后产能评价研究进展[J].断块油气田,2018,25(1):62-65.
[25]刘振平,刘启国,王宏玉,等.底水油藏水平井水脊脊进规律[J].新疆石油地质,2015,36(1):86-89.
[26]李旭成,李晓平,刘蕾,等.致密气藏压裂水平井气水两相产能求解新方法[J].天然气勘探与开发,2016,39(1):47-51.
[27]李士伦.天然气工程[M].北京:石油工业出版社,2008:86-87.
[28]李传亮.油藏工程原理[M].北京:石油工业出版社,2011:185-187.
[29]AI-HUSSAING R.RAMEV H J Jr,CRAWFORD P B.The flow of real gases through porous media[J].JPT,1966,18(5):624-636.
[30]陈元千,孙兵,姜凤光,等.半球形流气井产量公式的推导与应用[J].油气井测试,2009,18(3):1-4
[31]藤赛男,李相方,李元生.气井近井储层污染对高速非达西渗流的影响[J].断块油气田,2014,21(1):62-65.
[2]MEYER H I,GARDER A O.Mechanics of two immiscible fluids in porous media[J].Journal of Applied Physics,1954,25(11):1400-1406.
[3]SCHOLS R S.An empircal formula for the critical oil production rate[J].Erdoel Erdgas,1972,88(1):6-11.
[4]CHAPERON I.Theoretical study of coning toward horizontal and vertical wells in anisotropic formations:subcritical and critical rates[C].SPE15377,1986:2-5.
[5]ABASS H H,BASS D M.The critical production rate in water coning system[C].SPE17311,1988:2-4.
[6]李元生,李相方,藤赛男,等.近井地带高速非达西动边界对产能预测的影响[J].西南石油大学学报(自然科学版),2015,37(1):128-134.
[7]杨筱璧,李祖友,鲁敏蘅,等.高速非达西流气井产能方程的新形式[J].特种油气藏,2008,15(5):74-75.
[8]张烈辉,朱水桥,王坤,等.高速气体非达西渗流数学模型[J].新疆石油地质,2004,25(2):165-167.
[9]张庆辉,李相方,袁海菊,等.考虑非达西的半球面流气井产能公式推导[J].油气藏评价与开发,2011,1(5):1-4.
[10]范子菲.底水驱动油藏水平井产能公式研究[J].石油勘探与开发,1993,20(1):71-75.
[11]郭小哲,刘学锋.产水气井产能方程修正新方法研究[J].油气井测试,2015,24(4):11-13.
[12]袁淋,李晓平,任磊.低渗透气藏产水气井稳产能力研究[J].油气藏评价与开发,2016,6(1):24-28.
[13]艾爽,张同义,徐燕东.基于约束优化的高温高压气井产能评价方法[J].特种油气藏,2016,23(5):78-81.
[14]汪益宁,李洪,曹淑慧,等.各向异性底水油藏长水平井产能公式[J].油气地质与采收率,2016,23(4):108-111.
[15]何吉祥,姜瑞忠,毛瑜,等.致密气藏气水两相压裂水平井产能计算方法[J].岩性油气藏,2017,29(4):154-161.
[16]黄全华,童凯,陈冲,等.厚层气藏气井拟稳态产能研究[J].岩性油气藏,2017,29(6):148-153.
[17]张芨强,李晓平,袁淋,等.非达西渗流对低渗透气藏气水同产水平井产能的影响[J].岩性油气藏,2014,26(6):120-125.
[18]罗启源,李晓平,敖耀庭,等.气水同产水平井产能分析方法[J].新疆石油地质,2010,31(6):632-633.
[19]徐模,郭肖.低渗透气藏产水气井产能评价新方法[J].大庆石油地质与开发,2016,35(3):64-68.
[20]李龙龙,姚军,吴明录.考虑压裂液污染的低渗透垂直井产能计算[J].大庆石油地质与开发,2015,34(1):79-82.
[21]常元昊,乐平,姜汉桥,等.底水油藏多分支水平井水脊规律[J].断块油气田,2016,23(4):501-504.
[22]陆家亮,涂梅桂,刘晓华,等.产水气井稳定点二项式产能方程及其应用[J].科学技术与工程,2016,16(6):66-69.
[23]张辉,王磊,汪新光,等.异常高压气藏气水两相流井产能分析方法[J].石油勘探与开发,2017,44(2):258-262.
[24]张睿,孙兵,秦凌嵩,等.气井见水后产能评价研究进展[J].断块油气田,2018,25(1):62-65.
[25]刘振平,刘启国,王宏玉,等.底水油藏水平井水脊脊进规律[J].新疆石油地质,2015,36(1):86-89.
[26]李旭成,李晓平,刘蕾,等.致密气藏压裂水平井气水两相产能求解新方法[J].天然气勘探与开发,2016,39(1):47-51.
[27]李士伦.天然气工程[M].北京:石油工业出版社,2008:86-87.
[28]李传亮.油藏工程原理[M].北京:石油工业出版社,2011:185-187.
[29]AI-HUSSAING R.RAMEV H J Jr,CRAWFORD P B.The flow of real gases through porous media[J].JPT,1966,18(5):624-636.
[30]陈元千,孙兵,姜凤光,等.半球形流气井产量公式的推导与应用[J].油气井测试,2009,18(3):1-4
[31]藤赛男,李相方,李元生.气井近井储层污染对高速非达西渗流的影响[J].断块油气田,2014,21(1):62-65.
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