齐成伟带纵公式在带状高含硫气藏中的推广
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摘要
齐成伟带纵公式不适用于带状高含硫气藏,根据气相渗流与液相渗流的相似原理和Roberts气体相对渗透率与含硫饱和度的关系,将齐成伟带纵公式的适用条件推广为高含硫气藏,推导出了带状高含硫气藏中纵向双分支水平井的拟三维产能预测公式,即齐成伟带纵公式的高含硫气藏推广公式。根据齐成伟带纵公式的高含硫气藏推广公式,分析了硫沉积量、渗透率各向异性系数、带状气藏长度、生产段井筒位置和生产段长度对产能的影响。分析结果表明:产能随着含硫饱和度或渗透率各向异性系数的增大而减小;相同井境下,含硫饱和度对产能的影响要明显大于渗透率各向异性系数;产能随着带状气藏长度的增大而减小;产能随着生产段井筒位置的增大先增大,后减小,且当生产段井筒处于气藏中央高度时,产能最大;产能随着生产段长度的增大而增大。
According to the similarity principle between gas seepage and liquid seepage and the relationship between gas relative permeability and sulfur saturation summed up by Roberts,the famous Qi Chengwei′s formula is successfully generalized to the pseudo three-dimensional productivity one for the vertical double-branch horizontal wells in the ribbon-shaped sour gas reservoirs.That is the generalized Qi Chengwei ′ s productivity formula for the vertical double-branch horizontal wells in the sour gas reservoirs.Based on the gen-eralized formula,the impact of deposited sulfur content,permeability anisotropy coefficient,length of ribbon-shaped gas reservoir,wellbore position of production section,length of production section on the productivity is analyzed.The results show that :the productivity will decrease along with the increase of the sulfur saturation and permeability anisotropy coefficient,but the effect of the sulfur saturation on the productivity is greater than that of the permeability anisotropy coefficient at the same well situation;and it will decrease along with the increase of the length of the ribbon-shaped gas reservoir.The productivity will increase first then decrease along with the increase of the wellbore position of the production section,and it will be the maximum when the wellbore of the production section is at the middle height of the gas reservoirs.It will increase along with the increase of the length of production section also.
According to the similarity principle between gas seepage and liquid seepage and the relationship between gas relative permeability and sulfur saturation summed up by Roberts,the famous Qi Chengwei′s formula is successfully generalized to the pseudo three-dimensional productivity one for the vertical double-branch horizontal wells in the ribbon-shaped sour gas reservoirs.That is the generalized Qi Chengwei ′ s productivity formula for the vertical double-branch horizontal wells in the sour gas reservoirs.Based on the gen-eralized formula,the impact of deposited sulfur content,permeability anisotropy coefficient,length of ribbon-shaped gas reservoir,wellbore position of production section,length of production section on the productivity is analyzed.The results show that :the productivity will decrease along with the increase of the sulfur saturation and permeability anisotropy coefficient,but the effect of the sulfur saturation on the productivity is greater than that of the permeability anisotropy coefficient at the same well situation;and it will decrease along with the increase of the length of the ribbon-shaped gas reservoir.The productivity will increase first then decrease along with the increase of the wellbore position of the production section,and it will be the maximum when the wellbore of the production section is at the middle height of the gas reservoirs.It will increase along with the increase of the length of production section also.
引文
[1]QI Chengwei,WANG Lilei,LI Bin.Several questions about multi-lateral horizontal well productivity formulae[J].Applied Mechanics and Materials,2011(71/78):4953-4957.
[2]齐成伟.裂缝激发的渗流场之运动学分析[J].内蒙古石油化工,2010,36(6):35-36.
[3]齐成伟,龙芝辉,汪志明.水平井流入剖面的简捷计算方法[J].石油钻探技术,2011,39(4):90-94.
[4]齐成伟.带形地层中裂缝激发的渗流场之复分析[J].内蒙古石油化工,2010,36(22):38-39.
[5]黄世军,杜殿发,刘继林,等.拉格朗日描述在水平井渗流场中的应用探索——油气渗流力学教材增添内容之建议[J].内蒙古石油化工,2012,38(9):1-3.
[6]陈德民,崔一平,高立超,等.分支水平井产能公式的精度分析[J].油气田地面工程,2011,30(3):15-17.
[7]张烈辉,熊友明,陈军,等.带状低渗透油气藏中纵向双分支水平井在不同完井方式下的产能公式[J].科学技术与工程,2012,12(25):6454-6457.
[8]游支云,苏堪华,王小秋,等.带形地层中水平井方位对产能和采收率的影响[J].特种油气藏,2012,19(4):77-80.
[9]齐成伟.环形井群激发的渗流场之复分析[J].内蒙古石油化工,2010,36(2):32-35.
[10]齐成伟.水平井渗流场的进一步探讨[J].内蒙古石油化工,2009,35(24):192-195.
[11]齐成伟.环形裂缝群激发的渗流场之复分析[J].内蒙古石油化工,2009,35(21):39-40.
[12]梁峰,孟维龙,刘晓辉.分支水平井产能公式研究进展[J].西安石油大学学报:自然科学版,2010,25(4):41-44.
[13]邹丹,马强,王帅,等.水平井与分支水平井产能公式的一致性分析[J].油气地球物理,2011,9(2):59-61.
[14]罗坤,李晓平,姜汉桥,等.复杂边界油气藏中水平井的产能公式——齐成伟公式的应用范围研究[J].复杂油气藏,2013,6(2):41-45.
[15]陈元千.带状油气藏中分支水平井产能公式研究进展[J].特种油气藏,2013,20(5):1-6.
[16]齐成伟.平面稳态流速场运动学通式[J].天然气技术与经济,2013,7(6):27-28.
[17]李辉,赵春森,曲占庆,等.断块油气藏中水平井的产能预测研究[J].钻采工艺,2013,36(4):52-55.
[18]齐成伟,杨茂椿,龙芝辉.流体流入和流出裂缝的流动动态[J].石油天然气学报,2012,34(12):112-115.
[19]陈元千.辐射状分支水平井产能公式研究进展[J].特种油气藏,2014,21(1):1-6.
[20]杨青松,王晓冬,李治平,等.多底井产能预测方法的分类与比较[J].长江大学学报:自然科学版,2013,10(8):67-72.
[21]公培斌,顾文欢,杨占伟,等.低渗气藏中分支水平井的产能预测公式[J].承德石油高等专科学校学报,2011,13(3):26-28.
[22]陈元千,范子菲,游支云,等.带状低渗气藏中横向水平井的产能公式[C]//谢文彦,张方礼.第五届全国特种油气藏技术研讨会优秀论文集.沈阳:辽宁科学技术出版社,2012:528-531.
[23]李彦超,孟维龙,信艳永,等.带状低渗气藏中纵向双分支水平井的产能预测公式[J].价值工程,2011,30(25):55-56.
[24]ROBERTS B E.The effect of Sulfur Deposition on Gas Well inflow performance[J].SPE Reservoir Engineering,1997(5):118.
[2]齐成伟.裂缝激发的渗流场之运动学分析[J].内蒙古石油化工,2010,36(6):35-36.
[3]齐成伟,龙芝辉,汪志明.水平井流入剖面的简捷计算方法[J].石油钻探技术,2011,39(4):90-94.
[4]齐成伟.带形地层中裂缝激发的渗流场之复分析[J].内蒙古石油化工,2010,36(22):38-39.
[5]黄世军,杜殿发,刘继林,等.拉格朗日描述在水平井渗流场中的应用探索——油气渗流力学教材增添内容之建议[J].内蒙古石油化工,2012,38(9):1-3.
[6]陈德民,崔一平,高立超,等.分支水平井产能公式的精度分析[J].油气田地面工程,2011,30(3):15-17.
[7]张烈辉,熊友明,陈军,等.带状低渗透油气藏中纵向双分支水平井在不同完井方式下的产能公式[J].科学技术与工程,2012,12(25):6454-6457.
[8]游支云,苏堪华,王小秋,等.带形地层中水平井方位对产能和采收率的影响[J].特种油气藏,2012,19(4):77-80.
[9]齐成伟.环形井群激发的渗流场之复分析[J].内蒙古石油化工,2010,36(2):32-35.
[10]齐成伟.水平井渗流场的进一步探讨[J].内蒙古石油化工,2009,35(24):192-195.
[11]齐成伟.环形裂缝群激发的渗流场之复分析[J].内蒙古石油化工,2009,35(21):39-40.
[12]梁峰,孟维龙,刘晓辉.分支水平井产能公式研究进展[J].西安石油大学学报:自然科学版,2010,25(4):41-44.
[13]邹丹,马强,王帅,等.水平井与分支水平井产能公式的一致性分析[J].油气地球物理,2011,9(2):59-61.
[14]罗坤,李晓平,姜汉桥,等.复杂边界油气藏中水平井的产能公式——齐成伟公式的应用范围研究[J].复杂油气藏,2013,6(2):41-45.
[15]陈元千.带状油气藏中分支水平井产能公式研究进展[J].特种油气藏,2013,20(5):1-6.
[16]齐成伟.平面稳态流速场运动学通式[J].天然气技术与经济,2013,7(6):27-28.
[17]李辉,赵春森,曲占庆,等.断块油气藏中水平井的产能预测研究[J].钻采工艺,2013,36(4):52-55.
[18]齐成伟,杨茂椿,龙芝辉.流体流入和流出裂缝的流动动态[J].石油天然气学报,2012,34(12):112-115.
[19]陈元千.辐射状分支水平井产能公式研究进展[J].特种油气藏,2014,21(1):1-6.
[20]杨青松,王晓冬,李治平,等.多底井产能预测方法的分类与比较[J].长江大学学报:自然科学版,2013,10(8):67-72.
[21]公培斌,顾文欢,杨占伟,等.低渗气藏中分支水平井的产能预测公式[J].承德石油高等专科学校学报,2011,13(3):26-28.
[22]陈元千,范子菲,游支云,等.带状低渗气藏中横向水平井的产能公式[C]//谢文彦,张方礼.第五届全国特种油气藏技术研讨会优秀论文集.沈阳:辽宁科学技术出版社,2012:528-531.
[23]李彦超,孟维龙,信艳永,等.带状低渗气藏中纵向双分支水平井的产能预测公式[J].价值工程,2011,30(25):55-56.
[24]ROBERTS B E.The effect of Sulfur Deposition on Gas Well inflow performance[J].SPE Reservoir Engineering,1997(5):118.