人工熟化过程中可溶有机质对页岩孔隙特征的影响
Effect of extractable organic matter on pore characteristics of shales treated by artificial heating
查看参考文献37篇
|
文摘
|
有机质成熟过程中,可溶有机质在页岩中赋存状态的演化规律对于深入了解页岩油气的储集空间具有重要意义。采用压机半封闭体系,对低成熟的鄂尔多斯长7段页岩进行了不同温度条件下的高压热模拟实验研究,获取了一系列成熟度梯度(0.7% 2.0%)差异较小且相对稳定;可溶有机质对微孔的影响可能以覆盖遮掩为主,对页岩孔体积的影响主要集中在介孔和大孔部分,但对页岩比表面积的影响主要集中在微孔和介孔范围。 |
|
其他语种文摘
|
Extractable organic matter in shales has great significance to shale gas reservoirs during thermal maturation. A semi-closed thermal simulation was conducted on Chang-7 shales at different temperatures to acquire a set of shale samples at a thermal gradiant range from VRo = 0.7% to VRo = 3.5%. And extractable organic matter is characterized according to the comparison study of the shale pore characteristics investigated by low-pressure N_2 and CO_2 adsorption techniques on different scales before and after solvent extraction. The results show that the TOC,S_1, S_2 and I_H of the extracted samples tend to decrease significantly with increasing maturity until VRo = 2.0%, then generally become stable at higher maturation level. Solvent extraction may cover the micro-pores mainly and dramatically enhance the volumes of meso- and macro-pores, but only slightly enhance the micro-pore volume. In comparison, the increase of specific surface area after solvent extraction may be mostly contributed by micro-pores, and then by meso-pores. |
|
来源
|
地球化学
,2017,46(5):466-475 【核心库】
|
|
关键词
|
长7段页岩
;
高温高压模拟实验
;
可溶有机质
;
成熟度
;
孔隙特征
|
|
地址
|
中国科学院广州地球化学研究所, 有机地球化学国家重点实验室, 广东, 广州, 510640
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
0379-1726 |
|
学科
|
地质学 |
|
基金
|
中国科学院战略性先导科技专项
;
国家973计划
|
|
文献收藏号
|
CSCD:6061600
|
参考文献 共
37
共2页
|
|
1.
Guo T L. Formation and enrichment mode of Jiaoshiba shale gas field, Sichuan Basin.
Pet Explor Develop,2014,41(1):31-40
|
被引
36
次
|
|
|
|
|
2.
Curtis J B. Fractured shale-gas systems.
AAPG Bull,2002,86(11):1921-1938
|
被引
1014
次
|
|
|
|
|
3.
Montgomery S L. Mississippian Barnett Shale, Fort Worth basin, north-central Texas: Gas-shale play with multi-trillion cubic foot potential.
AAPG Bull,2005,89(2):155-175
|
被引
284
次
|
|
|
|
|
4.
Ross D J K. Impact of mass balance calculations on adsorption capacities in microporous shale gas reservoirs.
Fuel,2007,86:2696-2706
|
被引
65
次
|
|
|
|
|
5.
Chalmers G R L. Geological evaluation of Halfway-Doig-Montney hybrid gas shale-tight gas reservoir, northeastern British Columbia.
Mar Pet Geol,2012,38(1):53-72
|
被引
8
次
|
|
|
|
|
6.
Godec M. Potential for enhanced gas recovery and CO_2 storage in the Marcellus Shale in the Eastern United States.
Int J Coal Geol,2013,118:95-104
|
被引
10
次
|
|
|
|
|
7.
Milliken K L. Organic matter-hosted pore system, Marcellus Formation (Devonian), Pennsylvania.
AAPG Bull,2013,97(2):177-200
|
被引
224
次
|
|
|
|
|
8.
Jarvie D M. Unconventional shale-gas systems: The Mississippian Barnett Shale of north-central Texas as one model for thermogenic shale-gas assessment.
AAPG Bull,2007,91(4):475-499
|
被引
888
次
|
|
|
|
|
9.
Tian H. A preliminary study on the pore characterization of Lower Silurian black shales in the Chuandong Thrust Fold Belt, southwestern China using low pressure N_2 adsorption and FE-SEM methods.
Mar Pet Geol,2013,48:8-19
|
被引
104
次
|
|
|
|
|
10.
Xiong Y Q. The origin and evolution of thermogenic gases in organic-rich marine shales.
J Pet Sci Eng,2016,143:8-13
|
被引
8
次
|
|
|
|
|
11.
Mastalerz M. Porosity of Devonian and Mississippian New Albany Shale across a maturation gradient: Insights from organic petrology, gas adsorption, and mercury intrusion.
AAPG Bull,2013,97(10):1621-1643
|
被引
169
次
|
|
|
|
|
12.
Chen J. Evolution of nanoporosity in organic-rich shales during thermal maturation.
Fuel,2014,129:173-181
|
被引
80
次
|
|
|
|
|
13.
Sun L N. Formation and development of the pore structure in Chang 7 member oil-shale from Ordos Basin during organic matter evolution induced by hydrous pyrolysis.
Fuel,2015,158:549-557
|
被引
23
次
|
|
|
|
|
14.
Mathia E J. Evolution of porosity and pore types in organic-rich, calcareous, Lower Toarcian Posidonia Shale.
Mar Pet Geol,2016,75:117-139
|
被引
16
次
|
|
|
|
|
15.
Wei L. Influence of Soxhlet-extractable bitumen and oil on porosity in thermally maturing organic-rich shales.
Int J Coal Geol,2014,132:38-50
|
被引
18
次
|
|
|
|
|
16.
潘磊. 可溶有机质对表征页岩储层特性的影响.
天然气地球科学,2015,26(9):243-249
|
被引
1
次
|
|
|
|
|
17.
雷裕红. 鄂尔多斯盆地张家滩页岩液态烃特征及对页岩气量估算的影响.
石油学报,2016,37(8):952-961
|
被引
7
次
|
|
|
|
|
18.
郭慧娟. 抽提前/后成熟页岩对氮气、二氧化碳的吸附特征及其对孔隙研究的意义.
地球化学,2014,43(4):408-414
|
被引
13
次
|
|
|
|
|
19.
Cao T T. Characterizing the pore structure in the Silurian and Permian shales of the Sichuan Basin, China.
Mar Pet Geol,2015,61:140-150
|
被引
35
次
|
|
|
|
|
20.
张文正. 鄂尔多斯盆地延长组长7湖相页岩油地质特征评价.
地球化学,2015,44(5):505-515
|
被引
51
次
|
|
|
|
|
了解气象卫星更多信息，请访问