河流相致密砂岩气地质甜点评价

doi:10.11743/ogg20240212

Abstract

Abstract:

Reservoirs of the Jurassic Shaximiao Formation in the Sichuan Basin feature low porosity and permeability， strong heterogeneity， and complex sand body superposition. These characteristics complicate the identification and accurate prediction of geological sweet spots. To achieve efficient exploitation of the gas reservoirs， we establish the criteria for evaluating geological sweet spots in tight sandstone gas in the 1^st submember of the 2^nd member of the Shaximiao Formation （the Sha 2¹ submember） in the study area by delving into the effects of the sedimentation， diagenesis， and source rock-reservoir configuration on the formation and hydrocarbon accumulation of these gas reservoirs. Key findings are as follows. （1） The sand body scale and reservoir physical properties are governed by sedimentary microfacies and channel types. Notably， sand bodies located within the point bars of straight or low-sinuosity meandering rivers exhibit large thicknesses and favorable physical properties， standing as high-quality reservoirs. （2） Reservoir quality discrepancy primarily results from differences in lithic content in magmatic rocks and diagenetic facies. Specifically， the chlorite-cemented facies exhibits the most favorable physical properties. （3） Natural gas charging in the reservoirs is dictated by the source rock-reservoir configuration. Most especially， sand bodies in contact with or in proximity to source rock-rooted faults boast the most favorable gas-bearing properties. （4） The single-well natural gas production is jointly determined by reservoir quality and gas-bearing properties. Based on the evaluation criteria established in this study， the geological sweet spots in the study area are categorized into three types： types Ⅰ， Ⅱ， and Ⅲ. Type Ⅰ sweet spots primarily encompass sand bodies in the point bars of straight or low-sinuosity meandering rivers， with porosity exceeding 12 % and permeability surpassing 0.30×10^-3 μm²， and chlorite-cemented facies dominating. They are situated near source rock-rooted faults， exhibiting favorable gas-bearing properties with water saturation below 30 %， Poisson’s ratio less than 0.24， and single-well gas production rate over 0.10×10⁴ m³/（d∙m）. Type Ⅱ sweet spots are dominated by sand bodies in middle-sinuosity meandering rivers， with porosity ranging from 10 % to 12 % and permeability from 0.15×10^-3 to 0.30×10^-3 μm². Their diagenetic facies are dominated by illite- or mixed-layer montmorillonite-illite-cemented facies. They are positioned comparatively far from source rock-rooted faults， with water saturation ranging from 30 % to 40 %， Poisson’s ratio from 0.24 to 0.25， and single-well gas production rate from 0.05×10⁴ to 0.10×10⁴ m³/（d∙m）. Type Ⅲ sweet spots primarily comprise sand bodies in the point bars of small-scale， medium-sinuosity meandering rivers， characterized by low porosity and permeability. Their diagenetic facies mainly include illite- or mixed-layer montmorillonite-illite-cemented facies sitting far from source rock-rooted faults and with poor gas-bearing properties.

Key words: straight river, meandering river, primary factor controlling sweet spot formation, criteria for evaluating sweet spot, tight sandstone gas, Shaximiao Formation, Jurassic, Sichuan Basin

CLC Number:

TE122.3

Hui PAN, Yuqiang JIANG, Xun ZHU, Haibo DENG, Linke SONG, Zhanlei WANG, Miao LI, Yadong ZHOU, Linjie FENG, Yongliang YUAN, Meng WANG. Evaluation of geological sweet spots in fluvial tight sandstone gas： A case study of the first submember of the second member of the Jurassic Shaximiao Formation， central Sichuan Basin[J]. Oil & Gas Geology, 2024, 45(2): 471-485.

Figures/Tables 14

Fig.1

Fig.2

Fig.3

Table 1

Fig.4

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

Fig.10

Fig.11

Table 2

Fig.12

References 47

1	邹才能，翟光明，张光亚，等. 全球常规-非常规油气形成分布、资源潜力及趋势预测［J］. 石油勘探与开发， 2015， 42（1）： 13-25.
	ZOU Caineng， ZHAI Guangming， ZHANG Guangya， et al. Formation， distribution， potential and prediction of global conventional and unconventional hydrocarbon resources［J］. Petroleum Exploration and Development， 2015， 42（1）： 13-25.
2	邹才能，杨智，何东博，等. 常规-非常规天然气理论、技术及前景［J］. 石油勘探与开发， 2018， 45（4）： 575-587.
	ZOU Caineng， YANG Zhi， HE Dongbo， et al. Theory， technology and prospects of conventional and unconventional natural gas［J］. Petroleum Exploration and Development， 2018， 45（4）： 575-587.
3	孙龙德，邹才能，贾爱林，等. 中国致密油气发展特征与方向［J］. 石油勘探与开发， 2019， 46（6）： 1015-1026.
	SUN Longde， ZOU Caineng， JIA Ailin， et al. Development characteristics and orientation of tight oil and gas in China［J］. Petroleum Exploration and Development， 2019， 46（6）： 1015-1026.
4	李国欣，朱如凯. 中国石油非常规油气发展现状、挑战与关注问题［J］. 中国石油勘探， 2020， 25（2）： 1-13.
	LI Guoxin， ZHU Rukai. Progress， challenges and key issues of unconventional oil and gas development of CNPC［J］. China Petroleum Exploration， 2020， 25（2）： 1-13.
5	唐大海，王旭丽，曾琪，等. 四川盆地西南部沙溪庙组致密砂岩低渗储层特征及形成机理［J］. 科学技术与工程， 2023， 23（1）： 143-154.
	TANG Dahai， WANG Xuli， ZENG Qi， et al. Reservoir characteristics and formation mechanism of low permeability tight sandstone of Shaximiao Formation in southwest Sichuan Basin［J］. Science Technology and Engineering， 2023， 23（1）： 143-154.
6	杨雨，谢继容，曹正林，等. 四川盆地天府气田沙溪庙组大型致密砂岩气藏形成条件及勘探开发关键技术［J］. 石油学报， 2023， 44（6）： 917-932.
	YANG Yu， XIE Jirong， CAO Zhenglin， et al. Forming conditions and key technologies for exploration and development of large tight sandstone gas reservoirs in Shaximiao Formation， Tianfu gas field of Sichuan Basin［J］. Acta Petrolei Sinica， 2023， 44（6）： 917-932.
7	郭贵安，关旭，肖富森，等. 四川盆地中部侏罗系沙溪庙组致密砂岩气藏地震一体化描述技术［J］. 天然气工业， 2022， 42（1）： 40-50.
	GUO Guian， GUAN Xu， XIAO Fusen， et al. Integrated seismic description technology for tight sandstone gas reservoir of Jurassic Shaximiao Formation in the central Sichuan Basin［J］. Natural Gas Industry， 2022， 42（1）： 40-50.
8	何江，杨羿，陈文，等. 窄河道型致密砂岩储层特征及主控因素——以天府气田金华区块沙溪庙组为例［J］. 断块油气田， 2024， 31（01）： 1-10.
	HE Jiang， YANG Yi， CHEN Wen， et al. Characteristics and main controlling factors for narrow chanel tight sandstone reservoir： a case study of Shaximiao Formation in Jinhua Block of Tianfu Gas Field［J］. Fault-Block Oil & Gas Field， 2024， 31（01）： 1-10.
9	陶士振，李建忠，柳少波，等. 远源/次生油气藏形成与分布的研究进展和展望［J］. 中国矿业大学学报， 2017， 46（4）： 699-714.
	TAO Shizhen， LI Jianzhong， LIU Shaobo， et al. Formation condition， distribution law and exploration potential of far-source secondary oil and gas reservoirs［J］. Journal of China University of Mining & Technology， 2017， 46（4）： 699-714.
10	邹娟，乐园，金涛，等. 川中地区侏罗系致密砂岩储集层成因及 “甜点” 预测［J］. 新疆石油地质， 2018， 39（5）： 555-560.
	ZOU Juan， YUE Yuan， JIN Tao， et al. Genesis and sweet spot prediction of Jurassic tight sandstone reservoir in central Sichuan Basin［J］. Xinjiang Petroleum Geology， 2018， 39（5）： 555-560.
11	付菊，操延辉，叶素娟，等. 次生致密砂岩气藏甜点综合评价——以四川盆地中江气田侏罗系气藏为例［J］. 天然气工业， 2019， 39（）： 23-29.
	FU Ju， CAO Yanhui， YE Sujuan， et al. Comprehensive evaluation of sweet spots in secondary tight sandstone gas reservoirs-A case study of Jurassic gas reservoirs in Zhongjiang Gas Field， Sichuan Basin［J］. Natural Gas Industry， 2019， 39（S1）： 23-29.
12	周亚东，蒋裕强，杨广广，等. 致密河道砂体精细刻画及富气区预测技术——以川中北部地区中侏罗统沙溪庙组为例［J］. 天然气地球科学， 2022， 33（9）： 1532-1540.
	ZHOU Yadong， JIANG Yuqiang， YANG Guangguang， et al. Fine characterization of tight channels and prediction of gas-rich areas： Case study of Middle Jurassic Shaximiao Formation in central and northern Sichuan Basin［J］. Natural Gas Geoscience， 2022， 33（9）： 1532-1540.
13	王小娟，洪海涛，吴长江，等. 四川盆地川中地区侏罗系沙溪庙组致密砂岩储层特征及成因［J］. 吉林大学学报（地球科学版）， 2022， 52（4）： 1037-1051.
	WANG Xiaojuan， HONG Haitao， WU Changjiang， et al. Characteristics and formation mechanisms of tight sandstone reservoirs in Jurassic Shaximiao Formation， central of Sichuan Basin［J］. Journal of Jilin University（Earth Science Edition）， 2022， 52（4）： 1037-1051.
14	谢格云，田云英，刘柏，等. 川西南部地区中侏罗统沙溪庙组优质储层形成条件与控制因素［J］. 天然气工业， 2022， 42（7）： 45-54.
	XIE Geyun， TIAN Yunying， LIU Bai， et al. Formation conditions and controlling factors of high-quality reservoirs in the Middle Jurassic Shaximiao Formation of the southwestern Sichuan Basin［J］. Natural Gas Industry， 2022， 42（7）： 45-54.
15	杨希濮，孙卫. 鄂尔多斯盆地延安地区致密砂岩气藏 “甜点” 储层主控因素分析［J］. 地质科技情报， 2016， 35（6）： 138-143.
	YANG Xipu， SUN Wei. Major controlling factor of tight sandstone gas sweat reservoir in Yan’an area of Ordos Basin［J］. Geological Science and Technology Information， 2016， 35（6）： 138-143.
16	魏志鹏，郝鹏灵，刘子雄. 基于源储配置关系的地质工程双甜点研究［J］. 新疆石油天然气， 2022， 18（1）： 42-47.
	WEI Zhipeng， HAO Pengling， LIU Zixiong. Study on geological-engineering sweet spots based on the source-reservoir configuration［J］. Xinjiang Oil & Gas， 2022， 18（1）： 42-47.
17	牛栓文. 胜利油田低渗致密油藏地质工程一体化探索与实践［J］. 中国石油勘探， 2023， 28（1）： 14-25.
	NIU Shuanwen. Research and application of geology and engineering integration for low-permeability tight oil reservoirs in Shengli Oilfield［J］. China Petroleum Exploration， 2023， 28（1）： 14-25.
18	段永明，曾焱，刘成川，等. 窄河道致密砂岩气藏高效开发技术——以川西地区中江气田中侏罗统沙溪庙组气藏为例［J］. 天然气工业， 2020， 40（5）： 58-65.
	DUAN Yongming， ZENG Yan， LIU Chengchuan， et al. Technologies for the efficient development of tight sandstone gas reservoirs in narrow channels： A case study of Middle Jurassic Shaximiao Formation gas reservoir in the Zhongjiang Gas Field of western Sichuan Basin［J］. Natural Gas Industry， 2020， 40（5）： 58-65.
19	曾治平，刘震，马骥，等. 深层致密砂岩储层可压裂性评价新方法［J］. 地质力学学报， 2019， 25（2）： 223-232.
	ZENG Zhiping， LIU Zhen， MA Ji， et al. A new method for fracrability evaluation in deep and tight sandstone reservoirs［J］. Journal of Geomechanics， 2019， 25（2）： 223-232.
20	宋明水，刘振，张学才，等. 基于改进层次熵分析法的致密砂岩储层可压性评价 ——以准噶尔盆地Z109井侏罗系储层为例［J］. 地质力学学报， 2019， 25（4）： 509-517.
	SONG Mingshui， LIU Zhen， ZHANG Xuecai， et al. Fractability evaluation of tight sandstone reservoirs based on improved entropy analytic hierarchy process： Taking the Jurassic reservoirs of Well Z109 in the Junggar Basin as an example［J］. Journal of Geomechanics， 2019， 25（4）： 509-517.
21	尹帅，孙晓光，邬忠虎，等. 鄂尔多斯盆地东北缘上古生界构造演化及裂缝耦合控气作用［J］. 中南大学学报（自然科学版）， 2022， 53（9）： 3724-3737.
	YIN Shuai， SUN Xiaoguang， WU Zhonghu， et al. Coupling control of tectonic evolution and fractures on the Upper Paleozoic gas reservoirs in the northeastern margin of the Ordos Basin［J］. Journal of Central South University（Science and Technology）， 2022， 53（9）： 3724-3737.
22	朱海燕，龚丁，张兵. 致密砂岩气储层多尺度 “地质—工程” 双甜点评价新方法［J］. 天然气工业， 2023， 43（6）： 76-86.
	ZHU Haiyan， GONG Ding， ZHANG Bing. A multi-scale geology-engineering sweet spot evaluation method for tight sandstone gas reservoirs［J］. Natural Gas Industry， 2023， 43（6）： 76-86.
23	刘言. 中江气田致密砂岩气藏 “一体化” 甜点评价技术［J］. 西南石油大学学报（自然科学版）， 2022， 44（3）： 12-25.
	LIU Yan. Integrated sweets spots evaluation technology for tight sandstone gas reservoirs in Zhongjiang Gas Field［J］. Journal of Southwest Petroleum University（Science & Technology Edition）， 2022， 44（3）： 12-25.
24	陈沁，谢增业，张璐，等. 川东北五宝场地区须家河组和沙溪庙组天然气地球化学特征及其勘探意义［J］. 天然气地球科学， 2022， 33（10）： 1648-1660.
	CHEN Qin， XIE Zengye， ZHANG Lu， et al. Geochemical characteristics and exploration significance of natural gas in Xujiahe Formation and Shaximiao Formation in Wubaochang area， Northeast Sichuan［J］. Natural Gas Geoscience， 2022， 33（10）： 1648-1660.
25	ZHANG Xiaoju， DENG Hucheng， LI Tang， et al. The conditions and modelling of hydrocarbon accumulation in tight sandstone reservoirs： A case study from the Jurassic Shaximiao formation of western Sichuan Basin， China［J］. Geoenergy Science and Engineering， 2023， 225： 211702.
26	QIAO Yanguo， LIU Zhigang， LUO Wei， et al. Characterization of seismic information entropy attributes of braided river delta sedimentary microfacies for the upper Shaximiao Formation in the Wubaochang area， northeastern Sichuan Basin， China［J］. Earth Science Informatics， 2022， 15（3）： 1371-1383.
27	吕松婷，时保宏. 四川盆地川中YTB地区沙溪庙组二段沉积微相研究［J］. 石油地球物理勘探， 2022， 57（）： 122-129， 12.
	Songting LYU， SHI Baohong. Sedimentary microfacies of the second member of Shaximiao Formation in YTB［J］. Oil Geophysical Prospecting， 2022， 57（S1）： 122-129， 12.
28	陈少云，杨勇强，邱隆伟，等. 川中地区侏罗系沙溪庙组储层特征及控制因素［J］. 天然气地球科学， 2022， 33（10）： 1597-1610.
	CHEN Shaoyun， YANG Yongqiang， QIU Longwei， et al. Reservoir characteristics and controlling factors of Jurassic Shaximiao Formation in central Sichuan Basin［J］. Natural Gas Geoscience， 2022， 33（10）： 1597-1610.
29	方锐，蒋裕强，陈沁，等. 川东北五宝场地区侏罗系沙溪庙组沉积特征［J］. 岩性油气藏， 2023， 35（2）： 47-58.
	FANG Rui， JIANG Yuqiang， CHEN Qin， et al. Sedimentary characteristics of Jurassic Shaximiao Formation in Wubaochang area， northeastern Sichuan Basin［J］. Lithologic Reservoirs， 2023， 35（2）： 47-58.
30	付蕾，张本健，曹正林，等. 四川盆地川中地区侏罗系沙溪庙组不同类型砂体地质特征及地震精细雕刻［J］. 石油实验地质， 2022， 44（1）： 85-93.
	FU Lei， ZHANG Benjian， CAO Zhenglin， et al. Geological characteristics and seismic fine description of different types of sand bodies in Jurassic Shaximiao Formation in central Sichuan Basin［J］. Petroleum Geology and Experiment， 2022， 44（1）： 85-93.
31	杨跃明，王小娟，陈双玲，等. 四川盆地中部地区侏罗系沙溪庙组沉积体系演化及砂体发育特征［J］. 天然气工业， 2022， 42（1）： 12-24.
	YANG Yueming， WANG Xiaojuan， CHEN Shuangling， et al. Sedimentary system evolution and sandbody development characteristics of Jurassic Shaximiao Formation in the central Sichuan Basin［J］. Natural Gas Industry， 2022， 42（1）： 12-24.
32	韦腾强，张本健，王小娟，等. 四川盆地秋林地区侏罗系沙溪庙组二段河流相沉积特征及储集差异性分析［J］. 科学技术与工程， 2021， 21（29）： 12438-12446.
	WEI Tengqiang， ZHANG Benjian， WANG Xiaojuan， et al. Sedimentary characteristics of fluvial facies and analysis of reservoir differences in the second member of Jurassic Shaximiao Formation in Qiulin area， Sichuan Basin［J］. Science Technology and Engineering， 2021， 21（29）： 12438-12446.
33	胡辉东，李贤庆，陈纯芳，等. 鄂尔多斯盆地杭锦旗地区J58井区盒一段甜点储层特征及主控因素［J］. 矿业科学学报， 2022， 7（1）： 71-88.
	HU Huidong， LI Xianqing， CHEN Chunfang， et al. Characteristics and main controlling factors of the sweet spot reservoir in the first member of Lower Shihezi Formation of well J58 block in Hangjinqi area， Ordos Basin［J］. Journal of Mining Science and Technology， 2022， 7（1）： 71-88.
34	王利良，牛成民，杨海风，等. 渤海湾盆地莱北低凸起明化镇组下段河道类型演化及其油气地质意义［J］. 石油学报， 2022， 43（3）： 364-375.
	WANG Liliang， NIU Chengmin， YANG Haifeng， et al. Evolution of channel patterns and its geological significance for oil and gas exploration in the Lower Member of Minghuazhen Formation in Laibei low uplift， Bohai Bay Basin［J］. Acta Petrolei Sinica， 2022， 43（3）： 364-375.
35	蒲秀刚，赵贤正，李勇，等. 黄骅坳陷新近系古河道恢复及油气地质意义［J］. 石油学报， 2018， 39（2）： 163-171.
	PU Xiugang， ZHAO Xianzheng， LI Yong， et al. Paleochannel restoration and petroleum geological significance of Neogene in Huanghua Depression［J］. Acta Petrolei Sinica， 2018， 39（2）： 163-171.
36	张昌民，朱锐，赵康，等. 从端点走向连续：河流沉积模式研究进展述评［J］. 沉积学报， 2017， 35（5）： 926-944.
	ZHANG Changmin， ZHU Rui， ZHAO Kang， et al. From end member to continuum： Review of fluvial facies model research［J］. Acta Sedimentologica Sinica， 2017， 35（5）： 926-944.
37	张昌民，张尚锋，李少华，等. 中国河流沉积学研究20年［J］. 沉积学报， 2004， 22（2）： 183-192.
	ZHANG Changmin， ZHANG Shangfeng， LI Shaohua， et al. Advances in Chinese fluvial sedimentology from 1983 to 2003［J］. Acta Sedimentologica Sinica， 2004， 22（2）： 183-192.
38	孙小龙，林承焰，董春梅，等. 储层岩性控制下的绿泥石对硅质胶结的影响［J］. 地球科学， 2017， 42（9）： 1599-1607.
	SUN Xiaolong， LIN Chengyan， DONG Chunmei， et al. Influence of chlorite on siliceous cement under control of reservoir lithology［J］. Earth Science， 2017， 42（9）： 1599-1607.
39	王宏博，马存飞，曹铮，等. 基于岩相的致密砂岩差异成岩作用及其储层物性响应——以准噶尔盆地莫西庄地区下侏罗统三工河组为例［J］. 石油与天然气地质， 2023， 44（4）： 976-992.
	WANG Hongbo， MA Cunfei， CAO Zheng， et al. Differential diagenesis and reservoir physical property responses of tight sandstone based on lithofacies： A case study on the Lower Jurassic Sangonghe Formation in Moxizhuang area， Junggar Basin［J］. Oil & Gas Geology， 2023， 44（4）： 976-992.
40	曹江骏，王继平，张道锋，等. 深层致密砂岩储层成岩演化对含气性的影响——以鄂尔多斯盆地西南部庆阳气田二叠系山1段为例［J］. 石油与天然气地质， 2024， 45（1）： 169-184.
	CAO Jiangjun， WANG Jiping， ZHANG Daofeng， et al. Effects of diagenetic evolution on gas-bearing properties of deep tight sandstone reservoirs： A case study of reservoirs in the 1st member of the Permian Shanxi Formation in the Qingyang Gas Field， southwestern Ordos Basin［J］. Oil & Gas Geology， 2024， 45（1）： 169-184.
41	王龙，邓秀芹，楚美娟，等. 沉积岩中自生浊沸石的形成、分布及油气意义——以鄂尔多斯盆地中—上三叠统延长组为例［J］. 地质论评， 2022， 68（6）： 2188-2206.
	WANG Long， DENG Xiuqin， CHU Meijuan， et al. Formation and distribution of laumontite in sedimentary sequences and their exploration significance——A case study on the Middle-Upper Triassic Yanchang Formation in Ordos Basin［J］. Geological Review， 2022， 68（6）： 2188-2206.
42	袁珍，郑艳忠，袁海莉，等. 鄂尔多斯盆地东南缘延长组浊沸石胶结物特征及其成岩模式［J］. 西北大学学报（自然科学版）， 2020， 50（1）： 124-134.
	YUAN Zhen， ZHENG Yanzhong， YUAN Haili， et al. Study on the characteristics and diagenesis model of laumontite cement in Yanchang Formation in the southeastern margin of Ordos Basin［J］. Journal of Northwest University（Natural Science Edition）， 2020， 50（1）： 124-134.
43	孙光远，王哲麟，刘培刚，等. 碱性长石溶蚀微孔发育特征及其对致密砂岩储层物性的改造作用——以鄂尔多斯盆地华庆地区三叠系延长组6段3亚段为例［J］. 石油与天然气地质， 2022， 43（3）： 658-669.
	SUN Guangyuan， WANG Zhelin， LIU Peigang， et al. Dissolved micro-pores in alkali feldspar and their contribution to improved properties of tight sandstone reservoirs： A case study from Triassic Chang-63 sub-member， Huaqing area， Ordos Basin［J］. Oil & Gas Geology， 2022， 43（3）： 658-669.
44	张本健，潘珂，吴长江，等. 四川盆地金秋气田侏罗系沙溪庙组多期砂组天然气复合成藏机理及模式［J］. 天然气工业， 2022， 42（1）： 51-61.
	ZHANG Benjian， PAN Ke， WU Changjiang， et al. Compound gas accumulation mechanism and model of Jurassic Shaximiao Formation multi-stage sandstone formations in Jinqiu Gas Field of the Sichuan Basin［J］. Natural Gas Industry， 2022， 42（1）： 51-61.
45	杨春龙，苏楠，芮宇润，等. 四川盆地中侏罗统沙溪庙组致密气成藏条件及勘探潜力［J］. 中国石油勘探， 2021， 26（6）： 98-109.
	YANG Chunlong， SU Nan， RUI Yurun， et al. Gas accumulation conditions and exploration potential of tight gas reservoir of the Middle Jurassic Shaximiao Formation in Sichuan Basin［J］. China Petroleum Exploration， 2021， 26（6）： 98-109.
46	张小菊，伏美燕，邓虎成，等. 川西东斜坡地区沙溪庙组致密砂岩储层断-砂配置关系对天然气富集的控制作用［J］. 矿物岩石， 2020， 40（3）： 107-119.
	ZHANG Xiaoju， FU Meiyan， DENG Hucheng， et al. The controlling effect of fault-sandbody configurations on natural gas enrichment in Shaximiao Formation tight sandstone reservoir in the eastern slope of western Sichuan［J］. Mineralogy and Petrology， 2020， 40（3）： 107-119.
47	冯林杰，蒋裕强，曹脊翔，等. 川中北部须家河组烃源岩测井解释及评价［J］. 西南石油大学学报（自然科学版）， 2023， 45（4）： 31-42.
	FENG Linjie， JIANG Yuqiang， CAO Jixiang， et al. Log interpretation and evaluation of hydrocarbon source rocks of Xujiahe Formation in the north of central Sichuan Basin［J］. Journal of Southwest Petroleum University（Science & Technology Edition）， 2023， 45（4）： 31-42.

孔喉结构参数	高压压汞参数					核磁共振参数
孔喉结构参数	排驱压力/MPa	中值压力/MPa	中值孔喉半径/μm	平均孔喉半径/μm	最大进汞饱和度/%	大孔隙占比/%	小孔隙占比/%	可动流体饱和度/%
最大值	3.09	61.25	1.85	1.72	95.3	45.3	94.9	67.80
最小值	0.08	0.40	0.01	0.12	26.1	6.4	65.3	4.62
平均值	0.79	2.43	0.43	0.63	76.4	30.9	69.1	39.50

评价参数			Ⅰ类甜点区	Ⅱ类甜点区	Ⅲ甜点区
沉积参数	河道宽度/m		>400	>400	<400
沉积参数	河道弯曲度		<1.5	1.5～2.0	1.5～2.0
储层参数	成岩相		绿泥石胶结相	伊利石+伊/蒙混层胶结相	伊利石+伊/蒙混层胶结相
	孔隙度/%		>12	10～12	<10
	渗透率/（10^-3 μm²）		>0.30	0.15～0.30	<0.15
含气性参数	泊松比		<0.24	0.24～0.25	>0.25
	含气饱和度/%		>70	60～70	<60
	储层与断层的距离/km	龙泉山断裂	40～60	60～70	>70
	储层与断层的距离/km	八角场断裂	0～20	20～30	>30
产能参数	产气强度/（10⁴ m³/（d·m））		>0.10	0.05～0.10	<0.05

[1]	Xiao HE, Maja ZHENG, Yong LIU, Qun ZHAO, Xuewen Shi, Zhenxue Jiang, Wei WU, Ya WU, Shitan NING, Xianglu TANG, Dadong LIU. Characteristics and differential origin of Qiongzhusi Formation shale reservoirs under the “aulacogen-uplift” tectonic setting， Sichuan Basin [J]. Oil & Gas Geology, 2024, 45(2): 420-439.
[2]	Changbo ZHAI, Liangbiao LIN, Donghua YOU, Fengbin LIU, Siyu LIU. Sedimentary microfacies characteristics and organic matter enrichment pattern of the 1^st member of the Middle Permian Maokou Formation， southwestern Sichuan Basin [J]. Oil & Gas Geology, 2024, 45(2): 440-456.
[3]	Heyi ZHANG, Shuai YANG, Xihua ZHANG, Hanlin PENG, Qian LI, Cong CHEN, Zhaolong GAO, Anqing CHEN. Sedimentary microfacies and environmental evolution of the Middle Permian Maokou Formation in the eastern Sichuan Basin： A case study of the Yangjiao section in Wulong District， Chongqing， China [J]. Oil & Gas Geology, 2024, 45(2): 457-470.
[4]	Baoshou ZHANG, Benjian ZHANG, Hua WANG, Jianfa CHEN, Kaixuan LIU, Shuang DOU, Xin DAI, Shuangling CHEN. The Jinqiu gas field in the Sichuan Basin： A typical helium-bearing to helium-rich gas field with the Mesozoic sedimentary rocks as helium source rocks [J]. Oil & Gas Geology, 2024, 45(1): 185-199.
[5]	Zhili ZHANG, Yanping QIAO, Shuang DOU, Kunyu LI, Yuan ZHONG, Luya WU, Baoshou ZHANG, Xin Dai, Xin JIN, Bin WANG, Jinmin SONG. Karst paleogeomorphology and reservoir control model of the 2^nd member of Dengying Formation in Penglai gas area， Sichuan Basin， China [J]. Oil & Gas Geology, 2024, 45(1): 200-214.
[6]	Guangfu WANG, Fengxia LI, Haibo WANG, Tong ZHOU, Yaxiong ZHANG, Ruyue WANG, Ning LI, Yuxin CHEN, Xiaofei XIONG. Difficulties and countermeasures for fracturing of various shale gas reservoirs in the Sichuan Basin [J]. Oil & Gas Geology, 2023, 44(6): 1378-1392.
[7]	Zongquan HU, Ruyue WANG, Jing LU, Dongjun FENG, Yuejiao LIU, Baojian SHEN, Zhongbao LIU, Guanping WANG, Jianhua HE. Storage characteristic comparison of pores between lacustrine shales and their interbeds and differential evolutionary patterns [J]. Oil & Gas Geology, 2023, 44(6): 1393-1404.
[8]	Dongfeng HU, Zhihong WEI, Ruobing LIU, Xiangfeng WEI, Wei WANG, Qingbo WANG. Discovery of the Qijiang shale gas field in a structurally complex region on the southeastern margin of the Sichuan Basin and its implications [J]. Oil & Gas Geology, 2023, 44(6): 1418-1429.
[9]	Hongyan WANG, Shangwen ZHOU, Qun ZHAO, Zhensheng SHI, Dexun LIU, Pengfei JIAO. Enrichment characteristics， exploration and exploitation progress， and prospects of deep shale gas in the southern Sichuan Basin， China [J]. Oil & Gas Geology, 2023, 44(6): 1430-1441.
[10]	Zhensheng SHI, Shengxian ZHAO, Tianqi ZHOU, Shasha SUN, Yuan YUAN, Chenglin ZHANG, Bo LI, Ling QI. Types and genesis of horizontal bedding of marine gas-bearing shale and its significance for shale gas： A case study of the Wufeng-Longmaxi shale in southern Sichuan Basin， China [J]. Oil & Gas Geology, 2023, 44(6): 1499-1514.
[11]	Ruikang BIAN, Chuanxiang SUN, Haikuan NIE, Zhujiang LIU, Wei DU, Pei LI, Ruyue WANG. Types， characteristics， and exploration targets of deep shale gas reservoirs in the Wufeng-Longmaxi formations， southeastern Sichuan Basin [J]. Oil & Gas Geology, 2023, 44(6): 1515-1529.
[12]	Shuangjian LI, Zhi LI, Lei ZHANG, Yingqiang LI, Xianwu MENG, Haijun WANG. Hydrocarbon accumulation conditions and exploration targets of the Triassic subsalt ultra-deep sequences in the western Sichuan Depression， Sichuan Basin [J]. Oil & Gas Geology, 2023, 44(6): 1555-1567.
[13]	Jianhui ZENG, Yaxiong ZHANG, Zaizhen ZHANG, Juncheng QIAO, Maoyun WANG, Dongxia CHEN, Jingli YAO, Jingchen DING, Liang XIONG, Yazhou LIU, Weibo ZHAO, Kebo REN. Complex gas-water contacts in tight sandstone gas reservoirs： Distribution pattern and dominant factors controlling their formation and distribution [J]. Oil & Gas Geology, 2023, 44(5): 1067-1083.
[14]	Sheng LIU, Cunhui FAN, Benjian ZHANG, Ya ZHANG, Bing LUO, Xiaoliang BAI. Distribution characteristics of Gufeng Member of the Middle Permian Maokou Formation， eastern Sichuan Basin and its petrogeological significance [J]. Oil & Gas Geology, 2023, 44(4): 993-1008.
[15]	Dong WU, Hucheng DENG, Liang XIONG, Kaixuan CAO, Xiaoxia DONG, Yong ZHAO, Limin WEI, Tong WANG, Ruolong MA. Sequence filling and evolutionary model of the Lower Cambrian Maidiping-Qiongzhusi formations in Sichuan Basin and on its periphery [J]. Oil & Gas Geology, 2023, 44(3): 764-777.

Evaluation of geological sweet spots in fluvial tight sandstone gas： A case study of the first submember of the second member of the Jurassic Shaximiao Formation， central Sichuan Basin

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 14

References 47

Related Articles 15

Recommended Articles

Metrics