阳谷-茌平煤田上古生界生烃潜力研究——以聊页参1井为例
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摘要
阳谷-茌平煤田是山东省晚古生代石炭-二叠纪地层保留较好的地区,发育有本溪组、太原组、山西组和残存的石盒子群,其中太原组和山西组沉积了厚度较大的暗色泥页岩。通过沉积环境分析和泥页岩发育厚度统计,认为山西组泥页岩主要发育在煤3以下,可与太原组泥页岩一起分析研究,太原组暗色泥页岩层段发育厚度占该组地层厚度的68.82%;山西组和太原组暗色泥页岩有机碳含量一般大于1.5%,以中等—极好烃源岩为主;有机质类型为生气型(Ⅲ型)干酪根,镜质体反射率一般在0.6%～1.5%之间,大部分处于成熟阶段。分析认为,山西组下部和太原组暗色泥页岩具备页岩气生成的沉积环境、物质基础、有机质类型和演化条件,明确了山西组下部和太原组暗色泥页岩是区内勘探的目标层位,为进一步工作提供了依据。
Yanggu-Chiping coalfield is a well preserved area of the upper Carboniferous-Permian in the upper Paleozoic in Shandong province. Benxi formation, Taiyuan formation, Shanxi formation and the remaining shihezi formation developed in this area. Taiyuan formation and Shanxi formation have deposited dark-colored mud shale with great thickness. Based on sedimentary environment analysis and mud shale development thickness statistics, it is concluded that the mud shale of Shanxi formation mainly develops below coal 3, which can be analyzed and studied together with the mud shale of Taiyuan formation. The development thickness of dark-colored mud shale in Taiyuan formation accounts for 68.82% of the formation thickness of this group. The organic carbon content of dark mud shale in Shanxi formation and Taiyuan formation is generally more than 1.5%, with medium to excellent hydrocarbon source rocks as the main source rocks. Type organic matter types as gas rock(Ⅲ) kerogen, vitrinite reflectance is generally Between 0.6% and 1.5%, mainly medium—excellent source rocks. According to the analysis, the dark mud shale of the lower shanxi formation and taiyuan formation has the sedimentary environment, material basis, organic matter type and evolutionary conditions for shale gas generation. It is clear that the lower shanxi formation and the dark mud shale of taiyuan formation is the target horizon for exploration in the area, providing a basis for further work.
Yanggu-Chiping coalfield is a well preserved area of the upper Carboniferous-Permian in the upper Paleozoic in Shandong province. Benxi formation, Taiyuan formation, Shanxi formation and the remaining shihezi formation developed in this area. Taiyuan formation and Shanxi formation have deposited dark-colored mud shale with great thickness. Based on sedimentary environment analysis and mud shale development thickness statistics, it is concluded that the mud shale of Shanxi formation mainly develops below coal 3, which can be analyzed and studied together with the mud shale of Taiyuan formation. The development thickness of dark-colored mud shale in Taiyuan formation accounts for 68.82% of the formation thickness of this group. The organic carbon content of dark mud shale in Shanxi formation and Taiyuan formation is generally more than 1.5%, with medium to excellent hydrocarbon source rocks as the main source rocks. Type organic matter types as gas rock(Ⅲ) kerogen, vitrinite reflectance is generally Between 0.6% and 1.5%, mainly medium—excellent source rocks. According to the analysis, the dark mud shale of the lower shanxi formation and taiyuan formation has the sedimentary environment, material basis, organic matter type and evolutionary conditions for shale gas generation. It is clear that the lower shanxi formation and the dark mud shale of taiyuan formation is the target horizon for exploration in the area, providing a basis for further work.
引文
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[18] 曾维特,张金川,丁文龙,等.延长组陆相页岩含气量及其主控因素——以鄂尔多斯盆地柳坪171井为例[J].天然气地球科学,2014,25(2):291-301.
[19] 彭文泉,廉永彪.陆相沉积盆地泥页岩含气量影响因素探讨——以潍北凹陷为例[J].山东国土资源,2017,33(7):25-30.
[20] 巩固,张春池,高兵艳,等.鲁西地区上古生界页岩气成藏条件研究[J].中国煤炭地质,2018,30(10):43-48.
[21] SY/T5125-96.透射光-荧光干酪根显微组分鉴定[S].
[22] 彭文泉.潍北凹陷孔店组二段页岩气资源潜力分析[J].山东国土资源,2016,32(11):36-39.
[23] 张交东,曾秋楠,周新桂,等.南华北盆地太康隆起西部新区上古生界天然气成藏条件与钻探发现[J].天然气地球科学,2017,28(11):1637-1649.
[2] 赵宝聚,乔增宝,宫海明,等.山东省阳谷-茌平煤田阿城井田山西组煤岩对比研究[J].山东国土资源,2014,30(6):13-15.
[3] 赵宝聚,乔增宝,冯园园,等.山东省阳谷-茌平煤田地质特征及资源潜力分析[J].山东国土资源,2014,30(9):22-25.
[4] 张春池,彭文泉,巩固,等.山东省上古生界页岩气资源潜力评价[J].山东国土资源,2018,34(8):40-45.
[5] 张增奇,田京祥,张春池,等.国内外页岩气研究进展及山东省页岩气资源潜力[J].山东国土资源,2012,28(10):1-6.
[6] 杨恩秀,张春池,宁振国,等.山东石炭-二叠纪地层沉积环境分析[J].山东国土资源,2016,29(12):1-10.
[7] 张增奇,刘明渭,宋志勇,等.山东省岩石地层[M].武汉:中国地质大学出版社,1996:1-20.
[8] DZ/T0254-2014.页岩气资源/储量计算与评价技术规范[S].
[9] 王丽娟.山东鲁西地区上古生界泥页岩特征及页岩气远景区预测[J].山东国土资源,2016,32(1):21-25.
[10] 曾秋楠,张交东,周新桂,等.鲁西南晚古生代泥页岩地球化学特征与沉积环境[J].山东国土资源,2016,32(8):22-26.
[11] 黄第藩,熊传武.含煤地层中石油的生成、运移和生油潜力评价[J].勘探家,1996,1(2):6-11.
[12] 张永昌,梁狄刚,张大江.关于古生界烃源岩有机质丰度的评价标准[J].石油勘探与开发,2002,29(2):8-12.
[13] 肖家乐,冯有利,郭景会.济源盆地三叠系烃源岩生烃潜力分析[J].河南理工大学学报(自然科学版),2009,28(3):294-298.
[14] 刘玲,王峰,汤达祯,等.临兴地区上古生界煤系烃源岩评价及排烃特征[J].特种油气藏,2018,25(1):5-10.
[15] 单衍胜,张金川,李晓光,等.辽河盆地东部凸起太原组页岩气聚集条件及有利区预测[J].大庆石油学院院报,2012,36(1):1-7.
[16] 李琪琪,李斌,刘羿伶,等.川西北古生界烃源岩特征及生烃潜力评价[J].特种油气藏,2018,25(3):45-49.
[17] 聂海宽,张金川.页岩气聚集条件及含气量计算——以四川盆地及其周缘下古生界为例[J].地质学报,2012,86(2):349-361.
[18] 曾维特,张金川,丁文龙,等.延长组陆相页岩含气量及其主控因素——以鄂尔多斯盆地柳坪171井为例[J].天然气地球科学,2014,25(2):291-301.
[19] 彭文泉,廉永彪.陆相沉积盆地泥页岩含气量影响因素探讨——以潍北凹陷为例[J].山东国土资源,2017,33(7):25-30.
[20] 巩固,张春池,高兵艳,等.鲁西地区上古生界页岩气成藏条件研究[J].中国煤炭地质,2018,30(10):43-48.
[21] SY/T5125-96.透射光-荧光干酪根显微组分鉴定[S].
[22] 彭文泉.潍北凹陷孔店组二段页岩气资源潜力分析[J].山东国土资源,2016,32(11):36-39.
[23] 张交东,曾秋楠,周新桂,等.南华北盆地太康隆起西部新区上古生界天然气成藏条件与钻探发现[J].天然气地球科学,2017,28(11):1637-1649.