准噶尔盆地春光油田滩坝砂体岩性油藏描述方法
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摘要
准噶尔盆地春光油田主要为新近系沙湾组滩坝砂岩性油气藏,具有横向变化快、纵向厚度薄、分布面积小、地震剖面难以识别的特点。通过研究,利用层拉平振幅切片技术有效地预测了滩坝砂发育相带,利用分频分析技术准确地刻画了滩坝砂体边界,利用振幅-厚度分析法明确了砂体厚度变化,运用"类亮点"特征成功地识别了含油滩坝砂体。这些技术方法的综合应用在春光油田取得了较好的效果。
The beach and dam sandstone lithologic reservoirs in Neocene Shawan Formation of Chunguang Oilfield in Zhunggar Basin had the characteristics of fast lateral changes,thinning of vertical thickness and small distribution area and seismic section being hard to be recognized.horizon flatten amplitude slice was used for detecting the growing facies belts of beach-dam sands effectively,the technology of spectral decomposition was utilized for depicting the boundary of beach-dam sands exactly,the thickness-amplitude analytical method was utilized to clarify the thickness variations of sands,the similar bright spot characteristics were utilized to recognize the oil-bearing sands.The integrated application of all these methods and technologies in Chunguang Oilfield obtains preferable effect.
The beach and dam sandstone lithologic reservoirs in Neocene Shawan Formation of Chunguang Oilfield in Zhunggar Basin had the characteristics of fast lateral changes,thinning of vertical thickness and small distribution area and seismic section being hard to be recognized.horizon flatten amplitude slice was used for detecting the growing facies belts of beach-dam sands effectively,the technology of spectral decomposition was utilized for depicting the boundary of beach-dam sands exactly,the thickness-amplitude analytical method was utilized to clarify the thickness variations of sands,the similar bright spot characteristics were utilized to recognize the oil-bearing sands.The integrated application of all these methods and technologies in Chunguang Oilfield obtains preferable effect.
引文
[1]董臣强,王军.准噶尔盆地车排子地区新近系沙湾组一砂组油层地震特征分析[J].石油地球物理勘探,2007,42(4):445～447.
[2]蔡瑞.谱分解技术在储层预测中的应用[J].CT理论与应用研究,2003,12(2):22～25.
[3]支东明,赵卫军,关键,等.准噶尔盆地车排子地区新近系沙湾组油层特征[J].天然气勘探与开发,2007,30(3):5～8.
[4]Widess M B.How thin is a bed?[J].Geophysics,1973,38(6):1176～1180.
[5]王离迟,洪太元,江洪.强振幅地震属性分析技术在车排子地区油气检测中的应用[J].新疆地质,2006,24(3):310～313.
[6]周延平,杨靖,蒲仁海.利用分频技术预测薄层[J].海洋地质动态,2007,23(9):30～34.
[7]Batzle M L,Wang Z J.Seismic properties of proe fluid[J].Geophysics,1992,57(11):1396～1408.
[2]蔡瑞.谱分解技术在储层预测中的应用[J].CT理论与应用研究,2003,12(2):22～25.
[3]支东明,赵卫军,关键,等.准噶尔盆地车排子地区新近系沙湾组油层特征[J].天然气勘探与开发,2007,30(3):5～8.
[4]Widess M B.How thin is a bed?[J].Geophysics,1973,38(6):1176～1180.
[5]王离迟,洪太元,江洪.强振幅地震属性分析技术在车排子地区油气检测中的应用[J].新疆地质,2006,24(3):310～313.
[6]周延平,杨靖,蒲仁海.利用分频技术预测薄层[J].海洋地质动态,2007,23(9):30～34.
[7]Batzle M L,Wang Z J.Seismic properties of proe fluid[J].Geophysics,1992,57(11):1396～1408.
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