阿尔金山南缘侏罗系页岩气生烃及储集条件
Shale-gas hydrocarbon generation and accumulation conditions of the Jurassic strata in southern Altun Mountains
-
摘要: 柴达木盆地阿尔金山南缘侏罗系发育,具备油气生成的条件,但尚未开展页岩气调查评价。通过野外地质测量和样品采集分析,调查了侏罗纪泥页岩发育的厚度、沉积环境,分析了页岩地球化学、储层物性等页岩气地质条件。研究表明,侏罗纪泥页岩累计厚度介于158~250m之间,单层最大厚度89m;沉积环境以深湖-半深湖为主;有机碳含量介于0.15%~7.96%之间,平均2.05%;镜质体反射率介于1.02%~2.50%之间,平均1.41%;有机质类型以Ⅱ1和Ⅱ2型为主;泥页岩微裂缝及微孔隙发育,脆性矿物平均含量大于43%。综合分析认为,阿尔金山南缘侏罗系泥页岩具有较好的页岩气生烃和储集条件,可作为页岩气勘查开发的有利层系。Abstract: Jurassic strata, which are well developed in southern Altun Mountains, have good oil and gas generation conditions; never-theless, no investigation and evaluation for shale gas have been carried out in this region. Based on field geological survey and sample test, the authors investigated the thickness and sedimentary environment of Jurassic shale and analyzed the geochemical and reservoir property conditions of shale gas. The results show that the total thickness of Jurassic mudstone is 158~250m with the largest single thickness up to 89 m. Sedimentary environment is deep lake and semi-deep lake depositional facies. Organic carbon content is 0.15%~7.96% with an average of 2.05%. Vitrinite reflectance is 1.02%~2.50% with an average of 1.41%. Kerogen types are mainly type Ⅱ1 and typeⅡ2. The shale layers also contain high content of brittle minerals(>43%), with effective reservoir space well developed in the shales. The comprehensive analysis indicates that the Jurassic shale in southern Altun Mountains has basic geological conditions for shale-gas generation and accumulation.
-
Key words:
- Altun Mountains /
- Jurassic /
- shale gas /
- hydrocarbon generation conditions /
- accumulation conditions
-
-
[1] 董大忠,邹才能,李建忠,等.页岩气资源潜力与勘探开发前景[J].地质通报,2011,30(2/3):324-336.
[2] 张海全,余谦,李玉喜,等.中上扬子区下志留统页岩气勘探潜力[J]. 新疆石油地质,2011,32(4):353-355.
[3] 潘继平,乔德武,李世臻,等.下扬子地区古生界页岩气地质条件与勘探前景[J].地质通报,2011,30(2/3):337-343.
[4] 徐士林,包书景.鄂尔多斯盆地三叠系延长组页岩气形成条件及有利发育区预测[J].天然气地球科学,2009,20(3):460-465.
[5] 王凤琴,王香增,张丽霞,等.页岩气资源量计算:以鄂尔多斯盆地中生界三叠系延长组长7为例[J].地学前缘,2013,20(3):240-246.
[6] 王香增,高胜利,高潮.鄂尔多斯盆地南部中生界陆相页岩气地质特征[J].石油勘探与开发,2014,41(3):294-304.
[7] 李永红,张文龙,文怀军,等.柴达木盆地北缘侏罗系页岩气资源潜力分析[J].中国煤炭地质,2014,26(1):26-33.
[8] 邵龙义,李猛,李永红,等.柴达木盆地北缘侏罗系页岩气地质特征及控制因素[J].地学前缘,2014,21(4):311-322.
[9] 康志宏,周磊,任收麦,等.柴北缘中侏罗统大煤沟组七段泥页岩储层特征[J].地学前缘,2014,21(4):1-12.
[10] 杨永泰,张宝民,席萍,等.柴达木盆地北缘侏罗系展布规律新认识[J].地层学杂志,2001,25(2):154-159.
[11] 黄立功,党玉琪,徐凤银,等.柴达木盆地油气勘探现状和突破方向[J].勘探战略,2006(, 6):1-8.
[12] 江波,袁剑英,杨剑萍,等.柴达木盆地西部阿尔金山前带油气勘探前景[J].新疆石油地质,2004,25(6):596-598.
[13] 罗群,庞雄奇.运用断裂控烃理论实现柴达木盆地油气勘探大突破[J].石油学报,2003,24(2):24-29.
[14] 孙道武.柴西阿尔金山前红沟子地区中生界生储盖研究[J].断块油气田,2007,14(2):21-24.
[15] 戴俊生.柴达木盆地构造样式控油作用分析[J].石油实验地质, 2000,22(2):121-124.
[16] 黄汉纯,黄庆华.柴达木盆地地质与油气预测[M].北京:地质出版社,1996.
[17] 徐凤银,彭德华,侯恩科.柴达木盆地油气聚集规律及勘探前景[J]. 石油学报,2003,24(4):1-6.
[18] 王玉华,侯启军,孙德君,等.柴达木盆地北缘地区中新生代地层油气生成与资源评价[M].北京:科学出版社,2004:1-432.
[19] 陆廷清,马志强,牟中海.柴达木盆地的侏罗系[J].石油勘探与开发, 1997,24(6):17-20.
[20] 周娟,钟建华,段宏亮.柴西阿尔金山前下中侏罗统沉积地球化学特征及意义[J].沉积与特提斯地质,2008,28(3):75-78.
[21] 段宏亮,钟建华,马锋,等.柴西阿尔金山前中、下侏罗统展布及油气勘探方向[J].中国石油大学学报,2006,30(6):13-18.
[22] 常华进,储雪蕾,冯连君,等.氧化还原敏感微量元素对古海洋沉积环境的指示意义[J].地质论评,2009,55(1):91-99.
[23] Hatch J R, Leventhal J S. Relationship between inferred redox potential of the depositional environment and geochemistry of the Upper Pennaylvanian(Missourian) Strark Shale Member of the Dennis Limestone.Wabaunsee County, Kansas, USA[J].Chemical Geology,1994,99(1/3):65-82.
[24] Jones B, Manning D A C. Comparion of geochemical indices used for the interpretation of palaeoredos conditions inancient mudstones[J].Chemical Geology,1994,111(1/4):111-129.
[25] 熊小辉,肖加飞.沉积环境的地球化学示踪[J].地球与环境,2011,39(3):405-414.
[26] 吴朝东,杨承运,陈其英.湘西黑色页岩系地球化学特征和成因意义[J].岩石矿物学杂志,1999,18(1):26-39.
[27] 吴朝东,储著银.黑色页岩微量元素形态分析及地质意义[J].矿物岩石地球化学通报,2001,20(1):14-20.
[28] 刘平略,周厚清,康桂云.松辽盆地元素分布及其沉积环境的关系[J].大庆石油地质与开发,1986,5(2):11-15.
[29] 刘艳红.新生代阿尔金断裂带对柴西构造的控制和山体隆升对柴西沉积的影响[D].吉林大学硕士学位论文,2005:12-15.
[30] Bowker K A. Barnett shalegasproduction, FortWorth Basin:issue-sanddiscussion[J]. AAPG Bulletin, 2007, 91(4):523-533.
[31] Chalmsrs G R, Bustin R M. Lower Cretaceousgasshales of North-eastern British Columbia:geological controls on gas capacity and regional evaluation of apotential resource[C]//AAPG Annual Convention. SanAntonio, Texas:AAPG,2008.
[32] 陈丽华,缪昕,于众.扫描电镜在地质上的应用[M].北京:科学出版社,1986:45-61.
[33] 苏现波,林晓英.煤层气地质学[M].北京:煤炭工业出版社,2007:45-63.
[34] 陈更生,董大忠,王世谦,等.页岩气藏形成机理与富集规律初探[J]. 天然气工业,2009,29(5):17-21.
[35] 吴元燕,吴胜和,蔡正其.油矿地质学[M]. 石油工业出版社, 2005.
[36] 聂海宽,张金川.页岩气储层类型和特征研究:以四川盆地及其周缘下古生界为例[J].石油实验地质,2011,33(3):219-225.
[37] 聂海宽,边瑞康,张培先,等.川东南地区下古生界页岩储层微观类型与特征及其对含气量的影响[J].地学前缘,2014,21(4):331-343.
[38] 陈尚斌,朱炎铭,王红岩,等.四川盆地南缘下志留统龙马溪组页岩气储层矿物成分特征及意义[J].石油学报,2011,32(5):775-782.
[39] Liu Y J,Franz Neubauer, Ge X H,et al.Geochronology of the Altun fault zone and rising of the Altun Mountains[J]. Chinese Journal of Geology,2007,42(1):134-146.
[40] Ritts B D, Biffi U. Magnitude of post-Middle Jurassic(Bajocian) displacement on the central Altyn Tagh fault system,northwest Chi-na[J].GAS Bulletin,2000,112(1):61-74.
[41] 任收麦,葛肖虹,刘永江.阿尔金断裂带研究进展[J].地球科学进展, 2003,18(3):386-391.
[42] 车自成,刘良,刘洪福,等.阿尔金断裂系的组成及相关中新生代含油气盆地的成因特征[J].中国区域地质, 1998,17(4):377-384.
[43] 周守为,姜伟,张春阳,等.美国Eagle Ford页岩气开发对我国页岩气勘探开发的启示[J].中国工程科学,2012,14(6):16-21.
[44] 曾祥亮,刘树根,黄文明,等.四川盆地志留系龙马溪组页岩与美国Fort Worth盆地石炭系Barnett组页岩地质特征对比[J].地质通报,2011,30(2/3):372-384.
[45] 关小旭,伊向艺,杨火海,等. 中美页岩气储层条件对比[J].西南石油大学学报:自然科学版,2014,36(5):33-39.
[46] 周宝刚,李贤庆,张吉振,等.川南地区龙马溪组页岩有机质特征及其对页岩含气量的影响[J].中国煤炭地质,2014,26(10):27-32.
[47] 刘岩,周文,邓虎成,等.鄂尔多斯盆地上三叠统延长组含气页岩地质特征及资源评价[J].地质勘探,2013,33(3):19-23.
-
计量
- 文章访问数: 1116
- PDF下载数: 466
- 施引文献: 0
下载: