大牛地气田二叠系山西组单砂体预测技术及应用
|
摘要
大牛地气田二叠系山西组为三角洲平原沉积,岩性主要为砂泥岩互层,并发育多套煤层、煤线。由于煤层、煤线的低频强干扰作用,使得储层预测工作难度很大。该文主要介绍了应用基于模型的井震联合反演技术,得到时间和深度域的波阻抗、岩性、物性和含气性参数,成功地进行了单砂体含气性预测,并进行了水平井轨迹设计,2口水平井预测直井段深度、厚度与实钻结果吻合较好,DF2井沿预测水平段沿气层钻进733多米,取得了良好的钻探效果。
The Permian Shanxi Formation in the Daniudi Gas Field was deposited in delta plain environment.It was composed of interbedded sandstone and mudstone,and also generated several sets of coal and coal line.Due to the low-frequency strong interference of coal and coal line,reservoir prediction was very difficult.The model-based well-seismic inversion technique was introduced in this paper,by means of which the wave impedance of time and depth domains,lithology,physical property and gas-bearing parameters might be obtained.The prediction of single sand body was successfully carried out,and the trajectory design of horizontal wells was made.The predicted vertical well depth and thickness matched well with actual drilling in two wells.In the predicted horizontal segment in well DF2,it was drilled for over 733 m along gas reservoir,achieving good results.
The Permian Shanxi Formation in the Daniudi Gas Field was deposited in delta plain environment.It was composed of interbedded sandstone and mudstone,and also generated several sets of coal and coal line.Due to the low-frequency strong interference of coal and coal line,reservoir prediction was very difficult.The model-based well-seismic inversion technique was introduced in this paper,by means of which the wave impedance of time and depth domains,lithology,physical property and gas-bearing parameters might be obtained.The prediction of single sand body was successfully carried out,and the trajectory design of horizontal wells was made.The predicted vertical well depth and thickness matched well with actual drilling in two wells.In the predicted horizontal segment in well DF2,it was drilled for over 733 m along gas reservoir,achieving good results.
引文
[1]曹忠辉.鄂尔多斯盆地大牛地复式气田基本地质特征[J].西南石油学院学报,2005,27(2):17-21.
[2]罗东明,陈舒薇,张广权.大牛地气田上古生界沉积相与天然气富集规律的再认识[J].石油与天然气地质,2011,32(3):368-374.
[3]王永建,王延斌,李霞.大牛地气田上古生界储层物性差异影响因素[J].石油实验地质,2011,33(5):513-516.
[4]陈昭佑,王光强.鄂尔多斯盆地大牛地气田山西组砂体组合类型及成因模式[J].石油与天然气地质,2010,31(5):632-639.
[5]李荣西,段立志,张少妮,等.鄂尔多斯盆地低渗透油气藏形成研究现状与展望[J].地球科学与环境学报,2011,33(4):364-372.
[6]罗月明,刘伟新,谭学群.鄂尔多斯大牛地气田上古生界储层成岩作用评价[J].石油实验地质,2007,29(4):384-390.
[7]谢润成,周文,晏宁平,等.致密低渗砂岩储层质量控制因素研究:以靖边气田盒8段为例[J].石油实验地质,2010,32(2):120-123.
[8]张永刚.地震波阻抗反演技术的现状和发展[J].石油物探,2002,41(4):385-389.
[9]张永贵,刘振峰.鄂尔多斯盆地北部上古生界致密砂岩气藏储层建模[J].石油与天然气地质2011,32(4):560-567.
[10]李伶俐,何生,马伟竣.随机建模在大牛地气田新区早期气藏描述中的应用[J].断块油气田,2010,17(3):280-284.
[11]张永升,李家蓉,潘新志.地震和测井联合反演技术在塔河油田碳酸盐岩储层预测中的应用[J].勘探地球物理进展,2002,25(4):46-48.
[2]罗东明,陈舒薇,张广权.大牛地气田上古生界沉积相与天然气富集规律的再认识[J].石油与天然气地质,2011,32(3):368-374.
[3]王永建,王延斌,李霞.大牛地气田上古生界储层物性差异影响因素[J].石油实验地质,2011,33(5):513-516.
[4]陈昭佑,王光强.鄂尔多斯盆地大牛地气田山西组砂体组合类型及成因模式[J].石油与天然气地质,2010,31(5):632-639.
[5]李荣西,段立志,张少妮,等.鄂尔多斯盆地低渗透油气藏形成研究现状与展望[J].地球科学与环境学报,2011,33(4):364-372.
[6]罗月明,刘伟新,谭学群.鄂尔多斯大牛地气田上古生界储层成岩作用评价[J].石油实验地质,2007,29(4):384-390.
[7]谢润成,周文,晏宁平,等.致密低渗砂岩储层质量控制因素研究:以靖边气田盒8段为例[J].石油实验地质,2010,32(2):120-123.
[8]张永刚.地震波阻抗反演技术的现状和发展[J].石油物探,2002,41(4):385-389.
[9]张永贵,刘振峰.鄂尔多斯盆地北部上古生界致密砂岩气藏储层建模[J].石油与天然气地质2011,32(4):560-567.
[10]李伶俐,何生,马伟竣.随机建模在大牛地气田新区早期气藏描述中的应用[J].断块油气田,2010,17(3):280-284.
[11]张永升,李家蓉,潘新志.地震和测井联合反演技术在塔河油田碳酸盐岩储层预测中的应用[J].勘探地球物理进展,2002,25(4):46-48.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心