大牛地气田致密砂岩储层测井相类型研究
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摘要
大牛地气田位于鄂尔多斯盆地伊陕斜坡北部,主要含气层位为上古生界石炭系太原组、二叠系山西组和下石盒子组,为致密砂岩储层。该区主要经历了晚石炭世海侵、早二叠世山西期海退形成的三角洲、下石盒子期河流发育的海–陆过渡沉积,形成的测井相类型多样,利用自然伽马曲线将该区储层划分为8种岩石相类型,明确了不同沉积体系储层及有利沉积相带;其中下石盒子组盒3、盒2、盒1段主要为辫状河流相沉积,有利相带为辫状河主河道,山西组山2、山1段为三角洲平原沉积,有利相带为分流河道,太原组太2段主要为障壁岛–泻湖沉积,有利微相为障壁砂坝。
Daniudi gas field is located in the north of Ordos Yishan slope of the basin,the main gas bearing strata are the upper Paleozoic Carboniferous Taiyuan formation,Permian Shanxi formation and Shihezi formation,which belongs to tight sandstone reservoir.Daniudi gas field mainly experienced the transgression in late Carboniferous,regression in early Permian transgressive delta in Shanxi period,sea-land transitional fluvial deposits in lower Shihezi formation and there formed various log facies types.By using natural gamma curve,the reservoir can be divided into eight rock types,the reservoir and favorable sedimentary facies under different sedimentary systems were made clear.He_3,He_2 and He_1 of Shihezi formation are mainly of braided fluvial facies deposit and the favorable facies belt is braided river main channel.Shan_2 and Shan_1 of Shanxi formation are mainly of delta plain sedimentary and the favorable facies belt is distributary channel.Tai_2 of Taiyuan formation is mainly of barrier island-lagoon deposits and the favorable microfacies is barrier bar.
Daniudi gas field is located in the north of Ordos Yishan slope of the basin,the main gas bearing strata are the upper Paleozoic Carboniferous Taiyuan formation,Permian Shanxi formation and Shihezi formation,which belongs to tight sandstone reservoir.Daniudi gas field mainly experienced the transgression in late Carboniferous,regression in early Permian transgressive delta in Shanxi period,sea-land transitional fluvial deposits in lower Shihezi formation and there formed various log facies types.By using natural gamma curve,the reservoir can be divided into eight rock types,the reservoir and favorable sedimentary facies under different sedimentary systems were made clear.He_3,He_2 and He_1 of Shihezi formation are mainly of braided fluvial facies deposit and the favorable facies belt is braided river main channel.Shan_2 and Shan_1 of Shanxi formation are mainly of delta plain sedimentary and the favorable facies belt is distributary channel.Tai_2 of Taiyuan formation is mainly of barrier island-lagoon deposits and the favorable microfacies is barrier bar.
引文
[1]曹忠辉.鄂尔多斯盆地大牛地气田上古生界自然伽马曲线测井相分析[J].河南石油,2005,19(5):23–25.
[2]李永杰,赵荣华.鄂尔多斯盆地杭锦旗地区上古生界储层自然伽马测井相研究[J].石油地质工程,2014,28(2):61–66.
[3]陈钢花,王中文,王湘文.河流相沉积微相与测井相研究[J].测井技术,1996,20(5):335–340.
[4]常文会,赵永刚,卢松.曲流河环境沉积微相和测井相特征分析[J].天然气工业,2010,30(2):48–51.
[5]陈龙,陈江汉,王家豪,等.测井相在松辽盆地南部嫩江组三段沉积微相分析中的应用[J].特种油气藏,2011,18(3):51–55.
[6]宋秋强,张占松,张冲,等.测井相–岩相分析技术在复杂岩性中的应用[J].石油天然气学报(江汉石油学院学报),2013,35(7):78–81.
[7]刘行军,柳晓燕,成军军,等.苏里格中西部地区石盒子组盒8段测井相分析[J].测井技术,2008,32(6):538–541.
[8]李功强,赵永刚,陈利.镇泾油田长81段储层测井相研究[J].石油地质工程,2011,25(5):41–44.
[9]李剑波.川西坳陷中段沙溪庙组测井相和地震相及砂体展布特征[J].成都理工学院学报,2001,28(3):280–283.
[10]潘懋,魏至峰,张绪良,等.复杂泥岩测井相专家系统[J].石油学报,1994,15(1):9–14.
[11]蔺景龙,张淑梅.测井相分析方法的研究[J].大庆石油学院学报,1993,17(1):16–22.
[2]李永杰,赵荣华.鄂尔多斯盆地杭锦旗地区上古生界储层自然伽马测井相研究[J].石油地质工程,2014,28(2):61–66.
[3]陈钢花,王中文,王湘文.河流相沉积微相与测井相研究[J].测井技术,1996,20(5):335–340.
[4]常文会,赵永刚,卢松.曲流河环境沉积微相和测井相特征分析[J].天然气工业,2010,30(2):48–51.
[5]陈龙,陈江汉,王家豪,等.测井相在松辽盆地南部嫩江组三段沉积微相分析中的应用[J].特种油气藏,2011,18(3):51–55.
[6]宋秋强,张占松,张冲,等.测井相–岩相分析技术在复杂岩性中的应用[J].石油天然气学报(江汉石油学院学报),2013,35(7):78–81.
[7]刘行军,柳晓燕,成军军,等.苏里格中西部地区石盒子组盒8段测井相分析[J].测井技术,2008,32(6):538–541.
[8]李功强,赵永刚,陈利.镇泾油田长81段储层测井相研究[J].石油地质工程,2011,25(5):41–44.
[9]李剑波.川西坳陷中段沙溪庙组测井相和地震相及砂体展布特征[J].成都理工学院学报,2001,28(3):280–283.
[10]潘懋,魏至峰,张绪良,等.复杂泥岩测井相专家系统[J].石油学报,1994,15(1):9–14.
[11]蔺景龙,张淑梅.测井相分析方法的研究[J].大庆石油学院学报,1993,17(1):16–22.