准噶尔盆地夏子街地区A67井区三叠系扇体识别
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摘要
随着准噶尔盆地油气勘探的不断深入,岩性圈闭的勘探将成为今后的工作重点和难点。如何对岩性圈闭进行识别、预测和描述,是石油地质工作者现在和今后所要面临和解决的问题。针对夏子街地区A67井区运用层序地层学理论,结合钻井资料,配合沉积相研究,在目标区对地层进行对比和小层划分,选取目标砂体,利用沿层属性提取、地震相等多种先进的地球物理技术,准确地识别出A67井区克拉玛依下亚组的多个扇体,为识别该区岩性圈闭总结出了一套行之有效的方法。
With the continuous petroleum exploration in Junggar basin, lithologic trap's exploration becomes the focal point of work in the days to come. How to make an identification, prediction and description of the lithologic traps is a problem to be urgently solved. This paper presents the studies of A67 Wellblock in Xiazijie area as a target zone using sequence stratigraphy theory, integrated with the drilling data and sedimentary facies analysis, including formation correlation, layer division, sand body selection, seismic attribute extraction and seismic facies identification, etc. The study indicates that there exist several sand bodies in Lower Karamay formation of A67 Wellblock. This provides an effective method for identification of the lithologic traps in this area.
With the continuous petroleum exploration in Junggar basin, lithologic trap's exploration becomes the focal point of work in the days to come. How to make an identification, prediction and description of the lithologic traps is a problem to be urgently solved. This paper presents the studies of A67 Wellblock in Xiazijie area as a target zone using sequence stratigraphy theory, integrated with the drilling data and sedimentary facies analysis, including formation correlation, layer division, sand body selection, seismic attribute extraction and seismic facies identification, etc. The study indicates that there exist several sand bodies in Lower Karamay formation of A67 Wellblock. This provides an effective method for identification of the lithologic traps in this area.
引文
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[2]王世瑞,彭苏萍,凌云,等.利用地震属性研究准噶尔盆地西北缘拐19井区下侏罗统三工河组沉积相[J].古地理学报,2005,7(2):169-184.
[3]李云,丁正,许江桥,等.SWD地区隐蔽圈闭的识别[J].石油地球物理勘探,2005,40(5):579-584.
[4]陆基孟.地震勘探原理[M].山东东营:石油大学出版社,1993.
[5]谢里夫.勘探地震学[M].北京:石油工业出版社,1999.
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