Results 51 to 60 of about 235 (148)

Characteristics and indication of hydrocarbon-generating organisms in sub-salt Majiagou Formation of well T112, central and eastern Ordos Basin

open access: yesShiyou shiyan dizhi
In recent years, breakthroughs in natural gas exploration have been continuously achieved in the Ordovician Majiagou Formation of the central and eastern Ordos Basin, with geochemical characteristics of self-generation and self-storage.
Yinuo ZHANG   +8 more
doaj   +1 more source

Formation Mechanism of Heavy Hydrocarbon Carbon Isotope Anomalies in Natural Gas from Ordovician Marine Carbonate in the Ordos Basin

open access: yesJournal of Marine Science and Engineering, 2023
Interactive depositional systems of marine carbonates and gypsum salt rocks are closely related to natural gas reservoirs. Despite continuous progress in the exploration of new areas of marine carbonate genesis within the Ordos Basin, the source and ...
Wen Zhang   +9 more
doaj   +1 more source

Lithofacies palaeogeography as a guide to petroleum exploration

open access: yesJournal of Palaeogeography, 2013
Lithofacies palaeogeography as a guide to petroleum exploration is a very important topic. By using the following five exploration examples, this paper discusses the guide of lithofacies palaeogeography or of sedimentary facies to petroleum exploration ...
Feng Zengzhao   +4 more
doaj   +1 more source

Distributed Fiber Optic‐Based Monitoring and Analysis of Flexible Molded Concrete Piers for Coal Pillar Free Mining

open access: yesEnergy Science &Engineering, Volume 14, Issue 1, Page 412-427, January 2026.
Using the pillarless mining face at Zhaozhuang Coal Mine as a case study, the research objective is to accurately and comprehensively understand the stress distribution and its evolution characteristics in flexible concrete pillars along the hollow support pillars under the influence of secondary mining movements during pillarless coal mining ...
Yanhui Zhu   +4 more
wiley   +1 more source

Distribution and depositional model of microbial carbonates in the Ordovician middle assemblage, Ordos Basin, NW China

open access: yesPetroleum Exploration and Development, 2021
Based on outcrop profiles, drilling cores, cast thin sections etc., the types, microfacies combinations and distribution pattern of microbial carbonates in the Ordovician middle assemblage of the mid-eastern Ordos Basin have been systematically analyzed.
Liubin WEI   +6 more
doaj   +1 more source

Gas accumulation model of dolostones reservoirs beneath non-permeable layers controlled by faults: A case study of the middle-lower assemblage of Majiagou Formation in the Daniudi gas field

open access: yes地质科技通报
Objective The dolomite of the Ordovician Majiagou Formation in the Ordos Basin, an important strategic replacement area, has been a research hotspot in recent years. There are few studies on the influence of faults on hydrocarbon accumulation in this set
Tao LEI   +7 more
doaj   +1 more source

Check dams on China's Loess Plateau: An overview

open access: yesRiver, Volume 4, Issue 1, Page 1-20, February 2025.
Great achievements of check dam construction on the China's Loess Plateau have been gained; however, the flood incidents on check dams have been frequently reported for the past decades. To migrate the breach risk of check dams due to floods, the main advances in the flood migration techniques achieved by the authors' research group are reviewed ...
Zuyu Chen   +4 more
wiley   +1 more source

Rock Physical Modeling Based on Critical Porosity Constraint Optimization

open access: yesGeofluids, Volume 2025, Issue 1, 2025.
The equivalent dry rock modulus serves as an important parameter in the construction of equivalent rock physical models. Moreover, it is the key information for accurately predicting the elastic parameters and longitudinal and transverse wave velocities of hydrocarbon reservoirs.
Ziliang Luo   +6 more
wiley   +1 more source

Height Propagation Law and Controlling Strategies of Acid Fractures in Carbonate Gas Reservoirs With Bottom Water Layer Under Different Stress Profiles

open access: yesGeofluids, Volume 2025, Issue 1, 2025.
Acid fracturing is currently employed to develop the carbonate gas reservoir in the second section of the Dengying Formation at the Anyue Gas Field, Sichuan Basin. However, improper acid‐fracturing operational parameters pose a risk of fracture communication with the bottom water layer, leading to increased water production and a significant decline in
Jian Yang   +8 more
wiley   +1 more source

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