2021 Vol. 39, No. 2
Display Method:
2021, 39(2): 269-280.
doi: 10.14027/j.issn.1000-0550.2020.132
Abstract:
The gas production capacity difference among single wells and the difficulties in sustaining stable production are the key problems faced by shale gas production areas. Based on the typical characteristics of the shale gas production areas， a technic...
2021, 39(2): 281-296.
doi: 10.14027/j.issn.1000-0550.2020.110
Abstract:
Lamination texture is of great significance in shale reservoir effectiveness. This study of the marine Silurian Longmaxi Formation in the Sichuan Basin used image logging， optical microscopy， field emission scanning electron microscopy （FE-SEM）， poro...
2021, 39(2): 297-309.
doi: 10.14027/j.issn.1000-0550.2020.095
Abstract:
The deep-water gravity-flow deposits in the Chang7 member of the Upper Triassic Yanchang Formation， Ordos Basin， were the object of this study. The types and characteristics of deep-water gravity-flow deposits were determined by detailed analysis of ...
2021, 39(2): 310-323.
doi: 10.14027/j.issn.1000-0550.2020.111
Abstract:
With the development of increasingly precise and quantitative characterization of shale pore network structures， the content， structure and evolution of closed pores in shales has attracted widespread attention. To study the closed-pore characteristi...
2021, 39(2): 324-340.
doi: 10.14027/j.issn.1000-0550.2020.056
Abstract:
The marine-continental transitional organic-rich shale in the Longtan Formation in Xuancheng area， Anhui Province is not only considered as an excellent source rock in the Lower Yangtze region， but also one of the important layers of shale gas explor...
2021, 39(2): 341-352.
doi: 10.14027/j.issn.1000-0550.2020.094
Abstract:
The organic matter in shale reservoirs is not only the core factor of hydrocarbon generation， but it also generates porosity. Previous evaluations of organic matter types have shown that the hydrocarbon generation and pore formation capacity of the v...
2021, 39(2): 353-373.
doi: 10.14027/j.issn.1000-0550.2020.030
Abstract:
Mesozoic rocks are exposed in the northeastern corner of Ordos City. The main strata consist of a set of Triassic⁃Jurassic lacustrine deposits. Well⁃developed storm deposits and tempestites are found in the Triassic⁃Jurassic. The main site of the stu...
2021, 39(2): 374-382.
doi: 10.14027/j.issn.1000-0550.2020.029
Abstract:
Analysis of the hydrodynamic characteristics of estuaries， and examination of the bedload transport and deposition processes of a sediment⁃carrying river in a delta front controlled by the estuary， are the premises of this study of the growth pattern...
2021, 39(2): 383-394.
doi: 10.14027/j.issn.1000-0550.2020.017
Abstract:
The Central Yellow Sea Mud Area is a huge sink of sediments on the East Asian continental shelf. The provenance changes in this area are important for understanding the effects of paleoclimate changes. Based on differences between magnetic mineral co...
2021, 39(2): 395-407.
doi: 10.14027/j.issn.1000-0550.2019.107
Abstract:
Peat in Guizhou province is an important source of peat in the Asian monsoon zone. This study reveals the environmental significance of the degree of humification of Guizhou peat. The AMS 14C dating method was used to establish a chronological framew...
2021, 39(2): 408-424.
doi: 10.14027/j.issn.1000-0550.2020.013
Abstract:
Measured data for grain size， geochemical elements and 210Pb isotopes from 12 cores in the intertidal zone and shallow sea of the intertidal zone south of the Yellow River Delta and in the western area of Laizhou Bay， in combination with chronologica...
2021, 39(2): 424-433.
doi: 10.14027/j.issn.1000-0550.2020.036
Abstract:
Fluvial sandstone is an important type of reservoir in continental petroliferous basins. The time⁃space transition of river type is direct evidence of basin evolution studies and also the core content for accurate evaluation and prediction of oil and...
2021, 39(2): 434-445.
doi: 10.14027/j.issn.1000-0550.2020.003
Abstract:
To determine the best approach to the analysis of sedimentary facies during uranium exploration in the Langka area， Yili Basin， a series of studies was carried out involving detailed core observation. The appearance， distribution and evolution of the...
2021, 39(2): 446-455.
doi: 10.14027/j.issn.1000-0550.2020.014
Abstract:
The submarine channel⁃lobe transition zone in the Rovuma Basin （located on the border between Tanzania and Mozambique， east Africa） is characterized by a bed profile with high ridges and deep scours. High⁃resolution 3D seismic data and various seismi...
2021, 39(2): 456-469.
doi: 10.14027/j.issn.1000-0550.2020.020
Abstract:
The dolomites of the middle Permian Qixia Formation form the main reservoir in the study area. Further examination has shown that the reservoir formation is related to shoal facies⁃controlled eogenetic karst. Data from core analysis indicates that re...
2021, 39(2): 470-481.
doi: 10.14027/j.issn.1000-0550.2020.015
Abstract:
The shoal reservoir in the Jialingjiang Formation is a potential site for natural gas exploration. Drill core observations， thin section identification， cathode luminescence， scanning electron microscopy and physical property analysis were employed i...
2021, 39(2): 482-492.
doi: 10.14027/j.issn.1000-0550.2020.023
Abstract:
The bioturbated carbonate reservoirs in the Ordovician Yingshan and Yijianfang Formations of the Tahe oilfield are well developed. The macro⁃and microcharacteristics and genetic mechanism of the bioturbated carbonate reservoirs in the study area were...
2021, 39(2): 493-505.
doi: 10.14027/j.issn.1000-0550.2020.024
Abstract:
The Norian stage of the Upper Triassic was an important transitional episode from marine to terrestrial environment in the development of the Sichuan Basin. The Late Triassic environment and climate became more complex following the mass extinctions ...
2021, 39(2): 506-514.
doi: 10.14027/j.issn.1000-0550.2020.016
Abstract:
Trace element content， pyrolysis， kerogen δ13C， vitrinite reflectance， thin⁃sections and X⁃ray diffraction images were examined to determine the sedimentary environment and hydrocarbon generation potential of source rocks in the different layers maki...
