2021 Vol. 43, No. 3

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2021, 43(3): .
Abstract:
Exploration prospect of shale gas with Permian transitional facies of some key areas in China
GUO Shaobin, WANG Zilong, MA Xiao
2021, 43(3): 377-385. doi: 10.11781/sysydz202103377
Abstract(878) HTML (223) PDF-CN(235) Cited By (41)
Abstract:
The shale gas exploration of marine-continental transitional facies in China has not yet gained a significant success. To analyze and predict the exploration prospect of transitional shale gas, the distribution, organic geochemical and reservoir characteristics of transitional shale in some key area...
Geological conditions and exploration potential for shale gas in Upper Permian Wujiaping Formation in the region of western Hubei-eastern Chongqing
LIANG Xiwen, LI Le
2021, 43(3): 386-394. doi: 10.11781/sysydz202103386
Abstract(1134) HTML (267) PDF-CN(251) Cited By (22)
Abstract:
The Upper Permian Wujiaping Formation shale in the region of western Hubei and eastern Chongqing has been found qualified for shale gas accumulation in early exploration activities, but the potential for shale gas exploration is still unclear. Based on the core analysis and test data of well Jy3, co...
Gas-bearing characteristics and preservation conditions of Upper Ordovician Wufeng-Lower Silurian Longmaxi shale in western Hubei
XU Lulu, WEN Yaru, ZHANG Yanlin, REN Zhijun, YANG Jie, WEN Jianhang, CHEN Wei, LUO Fan, DUAN Ke
2021, 43(3): 395-405. doi: 10.11781/sysydz202103395
Abstract(861) HTML (234) PDF-CN(160) Cited By (14)
Abstract:
The Upper Ordovician Wufeng to Lower Silurian Longmaxi formations are important exploration targets for shale gas in the western Hubei province. The lithology, sedimentary facies, gas-bearing characteristics and preservation conditions of the Wufeng-Longmaxi formations were analyzed with the samples...
Controlling factors and countermeasures for exploring large and medium-sized gas fields in Sichuan Basin
HONG Taiyuan, CHENG Zhe, XU Huaming, CHEN Qian
2021, 43(3): 406-414. doi: 10.11781/sysydz202103406
Abstract(562) HTML (119) PDF-CN(171) Cited By (24)
Abstract:
The Sichuan Basin has been known to be rich of oil and gas resources, and after the exploration and development for more than 70 years, oil and gas reservoirs (mainly gas reservoirs) have been widely discovered in 28 strata, and the first complete gas industrial system has been built in this basin. ...
Microscale sedimentary characteristics and distinguishing methods for deep-water sandy debris flow and turbidity flow in continental lakes: a case study of seventh member of Yanchang Formation, Ordos Basin
LI Zhiyong, XU Yunze, DENG Jing, LI Zhiming, ZHANG Jianwu, LI Yueyi
2021, 43(3): 415-423. doi: 10.11781/sysydz202103415
Abstract(786) HTML (185) PDF-CN(189) Cited By (11)
Abstract:
Based on the results of thin section observation, grain size analysis, environmental scanning electron microscopy, whole rock mineral quantitative analysis and fluorescence element analysis, the microscale sedimentary characteristics of sedimentary sand debris flow and turbidity flow were studied in...
Exploration potential and favorable direction of tight gas in Middle Jurassic Xiashaximiao Formation in Sichuan Basin
DUAN Wenshen
2021, 43(3): 424-431. doi: 10.11781/sysydz202103424
Abstract(901) HTML (193) PDF-CN(173) Cited By (31)
Abstract:
Tight gas is an important gas-pool type for natural gas resource and output increment in China. The Middle Jurassic Xiashaximiao Formation (J2x) is an important target for the exploration of tight oil and gas in the Sichuan Basin. Based on decades of exploration practice and studies on accumulation ...
Study and application of identification and description methods for lithologic traps in large braided river sheet composite channels
ZHANG Wei, HE Faqi, YAN Xiangbin, CAI Lixue
2021, 43(3): 432-442. doi: 10.11781/sysydz202103432
Abstract(556) HTML (119) PDF-CN(144) Cited By (11)
Abstract:
The gas reservoirs in the Permian tight sandstones in the Ordos Basin are characterized by near source, tightness, large-scale area of gas reservoir, distribution along the main channel, and strong heterogeneity. Influenced by the changes in the internal physical properties of sand bodies, the diffe...
Prediction of tight clastic reservoirs of Upper Paleozoic in southern Ordos Basin: a case study of Zhenjing district
LU Hongmei, ZHANG Zhongpei, WANG Linlin, BIAN Changrong, SUN Yipu, LU Yingzhong
2021, 43(3): 443-451. doi: 10.11781/sysydz202103443
Abstract(626) HTML (171) PDF-CN(144) Cited By (8)
Abstract:
It is difficult to distinguish reservoirs and non-reservoirs based on the rock's physical properties. The quality of post-stack seismic data in the loess plateau is poor, which makes it a technical bottleneck for the prediction of reservoir of the Upper Paleozoic, and the exploration in the southern...
Origin of eyeball-shaped limestone and its significance for petroleum geology
LI Ang, LUO Kaiping, LI Fengxun, PAN Wenlei, PENG Jinning, DENG Mo, LI Longlong
2021, 43(3): 452-460. doi: 10.11781/sysydz202103452
Abstract(947) HTML (235) PDF-CN(179) Cited By (8)
Abstract:
Eyeball-shaped limestone is a kind of carbonate rock with a structure shaped as eyeball and eyelid, which is widely developed in south China. The petrological characteristics, paleo-sedimentary environment, origin and hydrocarbon geological significance of eyeball-shaped limestone were analyzed and ...
Influencing factors for breakthrough pressure of carbonate caprocks
ZHANG Lu, GUO Jianying, LIN Tong, XIE Zengye, YANG Chunlong, DONG Caiyuan, GUO Zeqing, HAO Aisheng
2021, 43(3): 461-467. doi: 10.11781/sysydz202103461
Abstract(739) HTML (151) PDF-CN(170) Cited By (9)
Abstract:
In addition to traditional gypsum salt rocks and shale rocks, many studies have confirmed that carbonate rocks also work as oil and gas seals. Breakthrough pressure is a characteristic parameter for the evaluation of the sealing ability of cap rocks. Different lithology types and lengths of carbonat...
Characteristics and controlling factors of natural gas source rocks of Middle Permian Gufeng Formation in western part of Lower Yangtze Platform, China
BAI Fan
2021, 43(3): 468-475. doi: 10.11781/sysydz202103468
Abstract(451) HTML (92) PDF-CN(113) Cited By (2)
Abstract:
Unconventional natural gas resources in the Lower Yangtze region have caused plenty of interests of the Chinese energy companies in recent years. The developing characteristics and controlling factors of natural gas source rocks in the Middle Permian Gufeng Formation were studied by analyzing the ty...
Depositional characteristics and evolution of Miocene deep-water channel systems in block A of Lower Congo-Congo Fan Basin, West Africa
CHEN Hua, LIN Changsong, ZHANG Zhongmin, ZHANG Demin, ZHU Yixuan, WU Gaokui, LI Ming, XU Hai, GUO Rongtao
2021, 43(3): 476-486. doi: 10.11781/sysydz202103476
Abstract(958) HTML (234) PDF-CN(121) Cited By (8)
Abstract:
Researches on the depositional characteristics, evolution and constraining factors of deep-water channel systems are the key factors to reveal the "source-sink" process at continental margin and make big breakthroughs in deep-water hydrocarbon exploration. Based on the integrated analyses of seismic...
Hypothesis of organic-inorganic coupling causes for petroleum generation and its significance
LUO Qun, JIA Chun, OU Guangxi, LIANG Guanghe, LIU Yinhe, ZENG Pusheng, CHEN Jiayu, CUI Qian
2021, 43(3): 487-497. doi: 10.11781/sysydz202103487
Abstract(841) HTML (220) PDF-CN(159)
Abstract:
It has important theoretical and practical significance to clarify the causes and distribution of oil and gas. This paper focused on the key scientific issues in the current petroleum genesis research, guided by the general principles of global tectonics and petroleum geology. Various petroleum gene...
Characteristics of oil and gas generation, expelling and retention of coaly source rock
YANG Heng, GONG Wenping, ZHENG Lunju
2021, 43(3): 498-506. doi: 10.11781/sysydz202103498
Abstract(1021) HTML (326) PDF-CN(199) Cited By (12)
Abstract:
To understand the effectiveness of hydrocarbon generation, expelling and retention capacities of coaly source rocks, carbonaceous mudstones and mudstones in coal layers and interlayers of different sedimentary environments and ages were selected to carry out the simulation experiments with a semi-op...
Simulation of crude oil cracking and gas generation with semi-open condition, Baiyun Sag, Pearl River Mouth Basin
LONG Zulie, SHI Chuang, ZHU Junzhang, HUANG Yuping, SHI Yuling, ZHANG Xiaolong
2021, 43(3): 507-512. doi: 10.11781/sysydz202103507
Abstract(617) HTML (208) PDF-CN(103) Cited By (4)
Abstract:
In order to study the mechanism and product compositions of oil cracking, crude oil samples from the Zhuhai Formation of the Baiyun Sag of Pearl River Mouth Basin were carried out for the high-temperature, high-pressure pyrolysis with different heating rates with the pressure close to the conditions...
Re-Os isotopic dating procedures for organic-rich samples
WU Luya, JIN Zhijun, CHU Zhuyin, LIU Keyu
2021, 43(3): 513-523. doi: 10.11781/sysydz202103513
Abstract(964) HTML (223) PDF-CN(144) Cited By (9)
Abstract:
The rhenium-osmium (Re-Os) geochronometer is newly developed technology and has been regarded as a promising radiometric tool for the direct dating of the deposition of source rock, hydrocarbon generation, migration and consequent alteration (e.g., thermal cracking, thermochemical sulphate reduction...
An improved column-chromatographic separation for polycyclic aromatic compounds in petroleum
LIU Xue, LI Meijun, TANG Youjun, HE Daxiang, KONAN N'Guessan Francois De Sales, SHI Shengbao, ZHU Lei
2021, 43(3): 524-531. doi: 10.11781/sysydz202103524
Abstract(782) HTML (197) PDF-CN(137) Cited By (2)
Abstract:
The separation and preparation process of petroleum group components is the basis for the subsequent molecular composition and isotopic analysis. Due to the complex composition of isomers, the components of aromatic compounds prepared by traditional techniques still cannot meet the isotopic analysis...
A calculation method for the efficiency of hydrocarbon expulsion based on parameter-diagram of source rock pyrolysis
ZHANG Dongmei, ZHANG Yanyan, GUO Junjing, HU Shouzhi, LI Shuifu
2021, 43(3): 532-539. doi: 10.11781/sysydz202103532
Abstract(771) HTML (193) PDF-CN(166) Cited By (4)
Abstract:
The efficiency of hydrocarbon expulsion acts as a key geological factor for the study of hydrocarbon expulsion of conventional oil and gas, also, it indicates the enrichment degree of unconventional oil and/or gas. Based on the method of recovering the original hydrocarbon generation potential, a me...
Method of identifying and characterizing of volcanic traps and its application
YANG Shuang, LI Zhongbo, YAN Xiangbin, CAI Lixue
2021, 43(3): 540-548. doi: 10.11781/sysydz202103540
Abstract(555) HTML (236) PDF-CN(117) Cited By (8)
Abstract:
Volcanic rocks were widely developed in sedimentary basins in China. The Songliao, Junggar and Sichuan basins have got great research successes and exploration discoveries in igneous reservoirs, which have become one of the important fields for oil and gas exploration in China. In the Changling Faul...
Core testing technology with T2-Pc two-dimensional nuclear magnetic resonance and its application
CHEN Yao, ZHANG Gong, ZHENG Guoqing, PENG Qing, Qin Yingyao
2021, 43(3): 549-556. doi: 10.11781/sysydz202103549
Abstract(1007) HTML (256) PDF-CN(152) Cited By (11)
Abstract:
As a non-destructive, efficient and non-invasive detection method, nuclear magnetic resonance (NMR) technology has always played an important role in the analysis of oil and gas cores, but the traditional nuclear magnetic resonance detection results (T2 spectrum) only reflect the size distribution c...
2021, 43(3): 557-557.
Abstract: