吉林大学学报(地球科学版) ›› 2015, Vol. 45 ›› Issue (4): 993-1001.doi: 10.13278/j.cnki.jjuese.201504103
刘四兵, 沈忠民, 吕正祥, 宋荣彩, 王鹏
Liu Sibing, Shen Zhongmin, Lü Zhengxiang, Song Rongcai, Wang Peng
摘要:
川西新场地区须家河组储层埋藏深度大、成岩作用复杂、致密化程度高,但在整体超致密背景下,局部仍发育较多的相对优质储层.相对优质储层在埋深较大的须二段,往往发育较多的原生孔隙,和相对次要的次生孔隙;而埋深较小的须四段储层,次生孔隙占绝对优势,原生孔隙发育较少.造成这一现象的主要原因是须二、须四段原生孔隙保存和次生孔隙发育机制上的差异.须二段储层中较多刚性颗粒的存在和较为发育的包膜绿泥石是原生孔隙得到较好保存的主要原因;而其较大的单砂层厚度和较少的泥岩发育则导致了有机酸性流体的注入量较少,长石溶蚀有限.须四段塑性岩屑含量明显较高,储层原生孔隙在压实作用下几乎消失殆尽,但较薄的单砂层厚度和较多泥岩的叠置发育使长石在有机酸性流体作用下得到了充分溶蚀;这是须四段储层次生孔隙相对发育、长石含量很低、同时还有自生高岭石沉淀的主要原因.
中图分类号:
[1] Weller J M.Compaction of Sediments[J].AAPG Bulletin, 1959, 43: 273-310.[2] Houseknecht D W. Assessing the Relative Importance of Compaction Processes and Cementation to Reduction of Porosity in Sandstones[J]. AAPG Bulletin, 1987, 71: 633-642.[3] Paxton S T, Szabo J O, Calvert C S, et al. Preservation of Primary Porosity in Deeply Buried Sandstones: A New Play Concept from the Cretaceous Tuscaloosa Sandstone of Louisiana[J]. AAPG Bulletin, 1990, 74: 737.[4] Szabo J O, Paxton S T. Intergranular Volume (IGV) Decline Curves for Evaluating and Predicting Compaction and Porosity Loss in Sandstones[J]. AAPG Bulletin, 1991, 75: 678.[5] Lander R H,Walderhaug O.Porosity Prediction Through Simulation of Sandstone Compaction and Quartz Cementation[J]. AAPG Bulletin, 1999, 83:433-449.[6] Paxton S T, Szabo J O, Ajdukiewicz J M, et al. Construction of an Intergranular Compaction Curve for Evaluating and Predicting Compaction and Porosity Loss in Rigid Grained Sandstone Reservoirs[J]. AAPG Bulletin, 2002, 86: 2047-2067.[7] Ajdukiewiczl J M, Lander R H. Sandstone Reservoir Quality Prediction: The State of the Art[J]. AAPG Bulletin, 2010, 94: 1083-1091.[8] Pittman E D,Larese R E.Compaction of Lithic Sands: Experimental Results and Applications[J]. AAPG Bulletin, 1991, 75(8): 1279-1299.[9] 吕正祥,刘四兵. 川西须家河组超致密砂岩成岩作用与相对优质储层形成机制[J]. 岩石学报,2009,25(10):273-283. Lü Zhengxiang, Liu Sibing. Ultra-Tight Sandstone Diagenesis and Mechanism for the Formation of Relatively High-Quality Reservoir of Xujiahe Group in Western Sichuan[J]. Acta Petrologica Sinica, 2009, 25(10): 273-283.[10] Bloch S, Lander H R, Bonnel L, et al. Anomalously High Porosity and Permeability in Deeply Buried Sandstone Reservoirs: Origin and Predictability[J]. AAPG Bulletin, 2002, 86: 301-328.[11] 黄思静,黄可可,冯文立,等. 成岩过程中长石、高岭石、伊利石之间的物质交换与次生孔隙的形成:来自鄂尔多斯盆地上古生界和川西凹陷三叠系须家河组的研究[J]. 地球化学,2009,38(5):498-506. Huang Sijing, Huang Keke, Feng Wenli, et al. Mass Exchanges Among Feldspar, Kaolinite and Illite and Their Influences on Secondary Porosity Formation in Clastic Diagenesis: A Case Study on the Upper Paleozoic, Ordos Basin and Xujiahe Formation, Western Sichuan Depression[J]. Geochimica, 2009, 38(5): 498-506.[12] 叶素娟,吕正祥. 川西新场气田下沙溪庙组致密储层特征及储集性影响因素[J]. 矿物岩石, 2010, 30(3): 96-104. Ye Sujuan, Lü Zhengxiang. Reservoir Characterization and Factors Influencing Reservoir Characteristics of the Lower Shaximiao Formation in Xinchang Gas Field, Western Sichuan, China[J]. Journal of Mine-ralogy and Petrology, 2010, 30(3): 96-104.[13] 赵艳,吴胜和,徐樟有,等.川西新场气田上三叠统须家河组二段致密砂岩优质储层控制因素[J]. 中国石油大学学报:自然科学版,2010,34(4):1-6. Zhao Yan, Wu Shenghe, Xu Zhangyou, et al. Control Factors of Compacted High-Quality Sandstone Reservoirs of Member 2 of Xujiahe Formation, Upper Triassic in Xinchang Gas Field of Western Sichuan Depression[J]. Journal of China University of Petroleum: Edition of Natural Sciences, 2010, 34(4): 1-6.[14] 刘四兵,沈忠民,刘昊年,等.川西坳陷中段上三叠统须家河组水岩相互作用机制[J].石油学报,2013,34(1):47-58. Liu Sibing, Shen Zhongmin, Liu Haonian, et al. Mechanism of Water-Rock Interaction of the Upper Triassic Xujiahe Formation in the Middle Part of Western Sichuan Depression[J]. Acta Petrolei Sinica, 2013, 34(1): 47-58.[15] Worden R H, Needham S J, Cuadros J, et al. The Worm Gut: A Natural Claymineral Factory and a Possible Cause of Diagenetic Grain Coats in Sandstones[J]. Journal of Geochemical Exploration, 2006, 89: 428-431.[16] Hillier S, Fallick A E, Matter A. Origin of Pore-Lining Chlorite in the Aeolian Rotliegend of Northern Germany[J]. Clay Minerals, 1996, 31: 153-171.[17] Ehrenberg S N. Preservation of Anomalously High Porosity in Deepburied Sandstones by Grain Coating Chlorite: Example from the Norwegian Continental Shelf[J]. AAPG Bulletin, 1993, 77: 1260-1286.[18] 黄思静,谢连文,张萌,等.中国三叠系陆相砂岩中自生绿泥石的形成机制及其与储层孔隙保存的关系[J].成都理工大学学报:自然科学版,2004,31(3):273-291. Huang Sijing, Xie Lianwen, Zhang Meng, et al. Formation Mechanism of Authigenic Chlorite and Relation to Preservation of Porosity in Nonmarine Triassic Reservoir Sandstones, Ordos Basin and Sichuan Basin, China[J]. Journal of Chengdu University of Technology: Edition of Natural Sciences, 2004, 31(3): 273-291.[19] 孙全力,孙晗森,贾趵,等.川西须家河组致密砂岩储层绿泥石成因及其与优质储层关系[J].石油与天然气地质,2012,33(5):751-757. Sun Quanli, Sun Hansen, Jia Bao, et al. Genesis of Chlorites and Its Relationship with High-Quality Reservoirs in the Xujiahe Formation Tight Sandstones,Western Sichuan Depression[J]. Oil & Gas Geology, 2012, 33(5): 751-757. |
[1] | 王玉霞, 周立发, 焦尊生, 尚庆华, 黄生旺. 鄂尔多斯盆地陕北地区延长组致密砂岩储层敏感性评价[J]. 吉林大学学报(地球科学版), 2018, 48(4): 981-990. |
[2] | 蔡来星, 卢双舫, 张训华, 肖国林, 吴志强, 黄文彪. 基于孔喉结构建立致密砂岩储层评价方案——以松南中央坳陷泉四段为例[J]. 吉林大学学报(地球科学版), 2017, 47(6): 1654-1667. |
[3] | 张焕旭, 陈世加, 路俊刚, 刘超威, 陈娟, 李勇, 徐坤. “膨胀力”作用下致密砂岩储层石油运聚特征[J]. 吉林大学学报(地球科学版), 2017, 47(5): 1341-1351. |
[4] | 陈冬霞, 庞雄奇, 杨克明, 祝渭平, 严青霞. 川西坳陷深层叠复连续型致密砂岩气藏成因及形成过程[J]. 吉林大学学报(地球科学版), 2016, 46(6): 1611-1623. |
[5] | 刘鹏, 王伟锋, 孟蕾, 姜帅. 鄂尔多斯盆地上古生界煤层气与致密气联合优选区评价[J]. 吉林大学学报(地球科学版), 2016, 46(3): 692-701. |
[6] | 潘保芝, 蒋必辞, 刘文斌, 房春慧, 张瑞. 致密砂岩储层含气测井特征及定量评价[J]. 吉林大学学报(地球科学版), 2016, 46(3): 930-937. |
[7] | 李易霖, 张云峰, 丛琳, 谢舟, 闫明, 田肖雄. X-CT扫描成像技术在致密砂岩微观孔隙结构表征中的应用——以大安油田扶余油层为例[J]. 吉林大学学报(地球科学版), 2016, 46(2): 379-387. |
[8] | 潘保芝, 石玉江, 蒋必辞, 刘丹, 张海涛, 郭宇航, 杨小明. 致密砂岩气层压裂产能及等级预测方法[J]. 吉林大学学报(地球科学版), 2015, 45(2): 649-654. |
[9] | 王淑萍,徐守余,董春梅,王丽萍,刘春平. 东营凹陷民丰洼陷北带沙四下亚段深层天然气储层成岩作用[J]. 吉林大学学报(地球科学版), 2014, 44(6): 1747-1759. |
[10] | 戴朝成,郑荣才,任军平,朱如凯. 四川前陆盆地上三叠统须家河组物源区分析及其地质意义[J]. 吉林大学学报(地球科学版), 2014, 44(4): 1085-1096. |
[11] | 陈留勤, 霍荣, 段凯波, 胡水清. 川北前陆盆地上三叠统须家河组陆相层序地层[J]. J4, 2012, 42(3): 600-611. |
[12] | 李军, 邹华耀, 张国常, 李平平, 冯冲, 张彦振, 陈加松. 川东北地区须家河组致密砂岩气藏异常高压成因[J]. J4, 2012, 42(3): 624-633. |
[13] | 李吉君, 崔会英, 卢双舫, 薛海涛, 胡国艺, 谢增业. 川中广安地区须家河组煤系烃源岩生气特征[J]. J4, 2010, 40(2): 273-278. |
[14] | 唐海发,彭仕宓,赵彦超. 致密砂岩气藏储层流动单元划分方法及随机模拟[J]. J4, 2007, 37(3): 469-0474. |
[15] | 杜业波,季汉成,朱筱敏. 川西前陆盆地上三叠统须家河组成岩相研究[J]. J4, 2006, 36(03): 358-364. |
|