张飞飞;

• 1:大庆油田有限责任公司第十采油厂

摘要(Abstract)：

基于恒速压汞实验和扫描电镜分析,分析松辽盆地北部下白垩统18块特低渗—致密砂岩样品(渗透率为(0.05～14.90)×10-3μm2)孔隙结构,研究孔隙结构参数的变化规律,总结其控制因素。结果表明:从特低渗至致密砂岩样品,孔隙体进汞饱和度及喉道半径明显降低,但孔隙体大小变化不大;随渗透率降低,位于低压段的"大孔—细喉型"孔隙比例逐渐降低,渗透率低于0.25×10-3μm2,位于高压段的"树形网络"孔隙影响致密砂岩储集及渗流能力。压实和黏土胶结共同主导孔喉结构的演化,前者以机械挤压形式破坏"大孔—细喉型"孔隙空间,对孔渗相关关系影响较弱;后者以化学沉淀方式充填粒间孔及溶蚀孔,对砂岩储集空间及渗流能力造成不同程度的破坏,使孔渗相关关系变差。与特低渗砂岩相比,致密砂岩的孔喉比大,达到渗流阈值时充填孔隙的比例低,易发生水锁等伤害。研究结果有助于深化致密砂岩储层孔喉结构演化及成因机制等方面的认识。

关键词(KeyWords)：松辽盆地;致密砂岩;恒速压汞;孔隙结构;成岩作用

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(41602141);; 构造与油气资源教育部重点实验室开放基金项目(TPR-2017-15)

作者(Author):张飞飞;

Email:

参考文献(References)：

• [1]李建忠,郑民,陈晓明,等.非常规油气内涵辨析、源—储组合类型及中国非常规油气发展潜力[J].石油学报,2015,36(5):521-532.Li Jianzhong,Zheng Min,Chen Xiaoming,et al.Connotation analyses,source-reservoir assemblage types and development potential of unconventional hydrocarbon in China[J].Acta Petrolei Sinica,2015,36(5):521-532.

• [2]赵泽辉,徐淑娟,姜晓华,等.松辽盆地深层地质结构及致密砂砾岩气勘探[J].石油勘探与开发,2016,43(1):12-23.Zhao Zehui,Xu Shujuan,Jiang Xiaohua,et al.Deep strata geologic structure and tight conglomerate gas exploration in Songliao basin,east China[J].Petroleum Exploration and Development,2016,43(1):12-23.

• [3]张明学,张元高,年喜.松辽盆地北部古中央隆起带深层构造特征及其演化[J].大庆石油学院学报,2006,30(5):107-110.Zhang Mingxue,Zhang Yuangao,Nian Xi.Deep-seated structural characteristic and evolution of paleo-central uplift belt in northern Songliao basin[J].Journal of Daqing Petroleum Institute,2006,30(5):107-110.

• [4]贾培锋,杨正明,肖前华,等.致密油藏储层综合评价新方法[J].特种油气藏,2015,22(4):33-36.Jia Peifeng,Yang Zhengming,Xiao Qianhua,et al.A new method to evaluate tight oil reservoirs[J].Special Oil&Gas Reservoirs,2015,22(4):33-36.

• [5]赵靖舟,吴少波,武富礼.论低渗透储层的分类与评价标准——以鄂尔多斯盆地为例[J].岩性油气藏,2007,19(3):28-31.Zhao Jingzhou,Wu Shaobo,Wu Fuli.The classification and evaluation criterion of low permeability reservoir:An example from Ordos basin[J].Lithologic Reservoirs,2007,19(3):28-31.

• [6]吴浩,郭英海,张春林,等.致密油储层微观孔吼结构特征及分类——以鄂尔多斯盆地陇东地区三叠统延长组长7段为例[J].东北石油大学学报,2013,37(6):12-17.Wu Hao,Guo Yinghai,Zhang Chunlin,et al.Characteristics and classifications of micro-pore structure in tight oil reser voir:A case study of the Triassic Yanchang formation Chang 7in Longdong area,Ordos basin[J].Journal of Northeast Petroleum University,2013,37(6):12-17.

• [7]张婷,徐守余,杨珂.储层微观孔隙结构分形维数应用[J].大庆石油学院学报,2010,34(3):44-47.Zhang Ting,Xu Shouyu,Yang Ke.Application of fractal dimension of micro-pore structure[J].Journal of Daqing Petroleum Institute,2010,34(3):44-47.

• [8]施立志,王卓卓,张永生.松辽盆地齐家地区高台子油层致密油分布及地质特征[J].天然气地球科学,2014,25(12):1943-1950.Shi Lizhi,Wang Zhuozhuo,Zhang Yongsheng.Distribution and geological characteristics of tight oil in Gaotaizi oil layer of Qijia area,Songliao basin[J].Natural Gas Geoscience,2014,25(12):1943-1950.

• [9]袁青,罗群,李楠,等.齐家南地区高台子油层致密油成藏模式[J].特种油气藏,2016,23(1):54-57.Yuan Qing,Luo Qun,Li Nan,et al.Gaotaizi tight oil accumulation modes in southern Qijia[J].Special Oil&Gas Reservoirs,2016,23(1):54-57.

• [10]操应长,葸克来,朱如凯,等.松辽盆地南部泉四段扶余油层致密砂岩储层微观孔喉结构特征[J].中国石油大学学报:自然科学版,2015,39(5):7-17.Cao Yingchang,Xi Kelai,Zhu Rukai,et al.Microscopic pore throat characteristics of tight sandstone reservoirs in Fuyu layer of the fourth member of Quantou formation in southern Songliao basin[J].Journal of China University of Petroleum:Edition of Natural Science,2015,39(5):7-17.

• [11]綦惠丽,李玉春,张雁.低渗透储层的微观特征对其宏观性质的影响规律——以榆树林油田扶杨油层为例[J].东北石油大学学报,2012,36(4):30-36.Qi Huili,Li Yuchun,Zhang Yan.Influence of micro-character on macroscopic properties in low permeability reservoir:Take Fuyang reservoir of Yushulin oilfield as example[J].Journal of Northeast Petroleum University,2012,36(4):30-36.

• [12]秦秋寒,宋效文,何成山,等.临江地区扶余—杨Ⅰ油层储层特征及主控因素[J].大庆石油学院学报,2011,35(3):39-44.Qin Qiuhan,Song Xiaowen,He Chengshan,et al.Properties and the major control factors in Fuyu-YangⅠformation of Linjiang region[J].Journal of Daqing Petroleum Institute,2011,35(3):39-44.

• [13]付丽,梁江平,白雪峰,等.松辽盆地北部扶余油层致密油资源评价[J].大庆石油地质与开发,2016,35(4):168-174.Fu Li,Liang Jiangping,Bai Xuefeng,et al.Resources evaluations of the tight oil in Fuyu reservoirs of north Songliao basin[J].Petroleum Geology and Oilfield Development in Daqing,2016,35(4):168-174.

• [14]孟元林,胡安文,乔德武,等.松辽盆地徐家围子断陷深层区域成岩规律和成岩作用对致密储层含气性的控制[J].地质学报,2012,86(2):325-334.Meng Yuanlin,Hu Anwen,Qiao Dewu,et al.Regional diagenetic law and control of diagenesis over gas-bearing capacity of tight reservoirs in deep Xujiaweizi fault depression,Songliao basin[J].Acta Geologica Sinica,2012,86(2):325-334.

• [15]肖佃师,卢双舫,姜微微,等.基于粒间孔贡献量的致密砂岩储层分类——以徐家围子断陷为例[J].石油学报,2017,38(10):1123-1134.Xiao Dianshi,Lu Shuangfang,Jiang Weiwei,et al.Classification of tight sandstone reservoirs based on the contribution of intergranular pores:A case study of Xujiaweizi fault depression[J].Acta Geologica Sinica,2017,38(10):1123-1134.

• [16]王晓莲.徐家围子断陷沙河子组致密储层分级评价[J].特种油气藏,2016,23(3):113-117.Wang Xiaolian.Classification evaluation of tight reservoirs in Shahezi formation of Xujiaweizi fault-depression[J].Special Oil&Gas Reservoirs,2016,23(3):113-117.

• [17] Zou Caineng,Zhu Rukai,Liu Keyu,et al.Tight gas sandstone reservoirs in China:Characteristics and recognition criteria[J].Journal of Petroleum Science and Engineering,2012,88:82-91.

• [18]李继岩.渤海湾盆地东营凹陷东段红层储层成岩环境时空演化及成岩孔隙演化[J].石油与天然气地质,2017,38(1):90-97.Li Jiyan.Temporal-spatial evolution of diagenetic environment and diagenesis pore evolutionaryprocess of red beds in the eastern Dongying sag,Bohai Bay basin[J].Oil&Gas Geology,2017,38(1):90-97.

• [19]朱如凯,吴松涛,苏玲,等.中国致密储层孔隙结构表征需注意的问题及未来发展方向[J].石油学报,2016,37(11):1323-1336.Zhu Rukai,Wu SongTao,Su Ling,et al.Problems and future works of porous texture characterization of tight reservoirs in China[J].Acta Petrolei Sinica,2016,37(11):1323-1336.

• [20] Xiao D,Jiang S,David T,et al.Combining rate-controlled porosimetry and NMR to probe full-range pore throat structures and their evolution features in tight sands:A case study in the Songliao basin,China[J].Marine and Petroleum Geology,2017,83:111-123.

• [21] Yao Y,Liu D.Comparison of low-field NMR and mercury intrusion porosimetry in characterizing pore size distribution of coals[J].Fuel,2012,95:152-158.

• [22] Xiao Dianshi,Jiang Shu,David T,et al.Impacts of clay on pore structure,storage and percolation of tight sandstones from the Songliao basin,China:Implications for genetic classification of tight sandstone reservoirs[J].Fuel,2018,211:390-404.

• [23] Zhao H,Ning Z,Wang Q,et al.Petrophysical characterization of tight oil reservoirs using pressure-controlled porosimetry combined with rate-controlled porosimetry[J].Fuel,2015,154:233-242.

• [24]崔景伟,邹才能,朱如凯,等.页岩孔隙研究新进展[J].地球科学进展,2012,27(12):1319-1325.Cui Jingwei,Zou Caineng,Zhu Rukai,et al.New advances in shale porosity research[J].Advances in Earth Science,2012,27(12):1319-1325.

• [25]李松,汤达祯,许浩,等.应力条件制约下不同埋深煤储层物性差异演化[J].石油学报,2015,36(增刊1):68-75.Li Song,Tang Dazhen,Xu Hao,et al.Evolution of physical differences in various buried depth of coal reservoirs under constraint of stress[J].Acta Petrolei Sinica,2015,36(Supp.1):68-75.

• [26]陈昭年,王小敏,陈珊,等.松辽盆地朝长地区扶余油层的构造演化[J].现代地质,2008,22(4):512-519.Chen Zhaonian,Wang Xiaomin,Chen Shan,et al.Structural evolution of Fuyu reservoir in the Chaochang area of Songliao basin[J].Geoscience,2008,22(4):512-519.

• [27]李阳,李树同,牟炜卫,等.鄂尔多斯盆地姬塬地区长6段致密砂岩中黏土矿物对储层物性的影响[J].天然气地球科学,2017,28(7):1043-1053.Li Yang,Li Shutong,Mou Weiwei,et al.Influences of clay minerals on physical properties of Chang 6tight sandstone reservoir in Jiyuan area,Ordos basin[J].Natural Gas Geoscience,2017,28(7):1043-1053.

• [28] Yuan G,Cao Y,Jia Z,et al.Selective dissolution offeldspars in the presence of carbonates:The way to generate secondary ores in buried sandstones by organic CO2[J].Marine and Petroleum Geology,2015,60:105-123.

• [29] Daigle H,Johnson A.Combining mercury intrusion and nuclear magnetic resonance measurements using percolation theory[J].Transport in Porous Media,2016,111:669-679.

• [30]唐永强,吕成远,侯吉瑞.用毛细管压力曲线计算相对渗透率曲线的方法综述[J].科学技术与工程,2015,15(22):89-98.Tang Yongqiang,Lyu Chengyuan,Hou Jirui.A review of methods to calculate relative permeability curve by using capillary pressure curve[J].Science Technology&Engineering,2015,15(22):89-98.

• [31] Wilson L,Wilson M J,Green J,et al.The influence of clay mineralpgy on formation damage in north sea reservoir sandstones:A review with illustrative examples[J].Earth Science Reviews,2014,134:70-80.