Results 61 to 70 of about 4,180,597 (190)

Tectonic evolution from Late Sinian to Early Paleozoic and natural gas exploration in northwestern Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2016
: Based on the field outcrops, drilling and seismic data of northwestern Sichuan Basin, this paper systematically discusses tectonic evolution characteristics from the Late Sinian to the Early Paleozoic, analyzes the petroleum geological significance ...
Zhidong GU   +8 more
doaj   +1 more source

Multidimensional Characterization of Formation Damage Mechanisms in Ancient Carbonate Reservoirs: Synergistic Effects of Inorganic‐Organic Interactions

open access: yesEnergy Science &Engineering, Volume 13, Issue 6, Page 2663-2671, June 2025.
ABSTRACT Formation clogging in carbonate gas reservoirs is a significant challenge in natural gas extraction, particularly due to the complex mineral composition and physicochemical characteristics of carbonate rocks, which make clogging phenomena even more complex. This study aims to delve into the formation mechanisms of formation plugs in carbonate
Jin Pang   +5 more
wiley   +1 more source

A possible erect coralline alga from the Ediacaran Dengying Formation in the Zhenba area of South China

open access: yesJournal of Paleontology, 2022
AbstractStudies of molecular biology suggest a deep origin of coralline red algae in the Neoproterozoic, but unequivocal representatives have not been found in Precambrian rocks. Such scarcity in the fossil record significantly limits our knowledge regarding the origin and early evolution of this group.
Yuan Zhang, Xingliang Zhang
openaire   +1 more source

Application of New Techniques for Fracture-Vug Effictiveness Analysis Based on Micro Resistivity Imaging Logging in the Dengying Formation

open access: yes, 2023
The secondary pores occurred in post-sediment deposition are very heterogeneous in the Sinian Dengying carbonate formation of Gaoshiti-Moxi area in Sichuan basin, which has caused significant test production differences.
WANG Yue   +4 more
core   +1 more source

New Pattern of Uplift‐Depression of the Pre‐Cambrian Basement in the Sichuan Basin: Constraints From Multi‐Seismic Parameter Imaging

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 6, June 2025.
Abstract The structural configuration of the pre‐Cambrian basement in the Sichuan Basin, a highly promising region for hydrocarbon exploration, has been a subject of long‐standing debate. Here, we determined the fine‐scale three‐dimensional seismic models of the Sichuan Basin using 187,356 high‐quality P‐ and S‐wave travel time pairs recorded by 627 ...
Zhi Wang   +6 more
wiley   +1 more source

Study on formation conditions of high-quality reservoir of Sinian Dengying Formation in central Sichuan

open access: yes, 2023
Central Sichuan is located at the eastern high point of the Leshan-Longnvsi ancient uplift axis. With a large amount of oil and gas resources, the Sinian Dengying Formation has a good exploration prospect.
Yongai QI   +7 more
core   +1 more source

Towards an improved understanding of Ca–Mg carbonates with nonplanar surfaces: An experimental approach

open access: yesSedimentology, Volume 72, Issue 1, Page 100-131, January 2025.
ABSTRACT Saddle dolomite is a Ca–Mg carbonate characterized by curved crystal faces, curved cleavage and sweeping extinction under cross‐polarized light. Saddle dolomite and, generally, Ca–Mg carbonates with curved crystal faces, are often assigned to the burial (hydrothermal) realm and serve as proxy archives for hydrogeochemical processes in ...
Yi‐Fan Zhang   +7 more
wiley   +1 more source

Laser ablation in situ U-Pb dating and its application to diagenesis-porosity evolution of carbonate reservoirs

open access: yesPetroleum Exploration and Development, 2019
Through the development and calibration of a reference material which is 209.8 Ma old using a newly-developed Laser Ablation (LA) Multi-Collector Inductively Coupled Plasma Mass Spectrometry (MC-ICP-MS) technique, we successfully overcome the difficulty ...
Anjiang SHEN   +6 more
doaj   +1 more source

Enrichment Mechanism of the Organic‐Rich Shale in Ediacaran Doushantuo Formation in Western Sichuan Basin, South China

open access: yesGeofluids, Volume 2025, Issue 1, 2025.
The Ediacaran Doushantuo Formation in South China has been increasingly recognized as a significant potential source rock for hydrocarbon reservoirs, particularly in relation to the overlying Dengying Formation. This study conducts a comprehensive geochemical analysis of the organic‐rich shale from the Ebian‐Xianfeng section within the Sichuan Basin ...
Bokai Dai, Xingzhi Ma, Fan Yang
wiley   +1 more source

Prestack Inversion Identification of Dolomite Reservoirs in the Fourth Member of the Sinian Dengying Formation in Moxi Area, Sichuan Basin, SW China

open access: yes, 2021
The dolomite reservoir of the fourth member of Dengying Formation in Moxi area of Sichuan Basin is thin, is fast in lateral variation, and has P-impedance difference from the surrounding rock; it is difficult to identify and predict the dolomite ...
Peng Lu   +6 more
core   +1 more source

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