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ISSN: 1876-3804
CN: 10-1529/TE
p-ISSN: 2096-4803

Control of hierarchic slope-break zones on grain shoal reservoirs and favorable exploration zones: A case study of Cambrian Xixiangchi Formation in the south slope of Leshan-Longnüsi paleouplift, Sichuan Basin, SW China

Based on 2D and 3D seismic data and well logging data, this paper studies the distribution of well-seismic stratigraphic filling and shoal controlled reservoirs of Upper Cambrian Xixiangchi Formation...

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Aulacogen-uplift enrichment pattern and exploration prospect of Cambrian Qiongzhusi Formation shale gas in Sichuan Basin, SW China

The shale of the Cambrian Qiongzhusi Formation in the Sichuan Basin is characterized by large burial depth and high maturity, but the shale gas enrichment pattern is still unclear. Based on the detailed...

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Analysis of the current status of global oil, gas, and associated resources exploration in 2023

Based on commercial databases from S&P Global and Rystad Energy and public information from oil companies around the world, a systematic analysis has been conducted on the global hydrocarbon exploration...

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Effects of phase-transition heat on fracture temperature in self-propping phase-transition fracturing technology

The thermal flux curve of phase-transition fluid (PF) was tested using differential scanning calorimetry, based on which a reaction kinetics model was established to reflect the relationship between...

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Discovery and geological significance of black carbon in Triassic Yanchang Formation in Ordos Basin and its influences on source rock evaluation, NW China

Through investigating the Triassic Yanchang Formation in the Ordos Basin, black carbon has been found for the first time in the seventh member of the Middle Triassic Yanchang Formation (Chang 7 Member)....

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Characteristics and hydrocarbon geological significances of paleo-bay in the fourth member of Middle Triassic Leikoupo Formation, western Sichuan Basin, SW China

The depositional facies types of the fourth member of the Middle Triassic Leokoupo Formation (Lei-4 Member) in western Sichuan Basin are examined through the methods of sedimentology, lithology and...

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Lithofacies types, sedimentary cycles, and facies models of saline lacustrine hybrid sedimentary rocks: A case study of Neogene in Fengxi area, Qaidam Basin, NW China

The saline lacustrine hybrid sedimentary rocks are complex in lithology and unknown for their sedimentary mechanisms. The hybrid sedimentary rocks samples from the Neogene upper Ganchaigou Formation...

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Episodic thrusting and sequence-sedimentary responses and their petroleum geological significance in Kuqa foreland basin, NW China

This study integrates field outcrop profiles, drilling cores, 2D seismic profiles, and 3D seismic data of key areas to analyze the Triassic tectonic-sequence stratigraphy in the Kuqa foreland basin,...

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Non-linear seepage model of hydraulic fracturing assisted oil displacement coupled with effects of high-pressure reduced adsorption: A case study of low and medium permeability reservoirs in Daqing Oilfield, NE China

Considering the adsorption loss of the hydraulic fracturing assisted oil displacement (HFAD) agent in the matrix, a method is proposed to characterize the dynamic saturation adsorption capacity of the...

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Experiments on thermal miscible rules of different gas media and crude oil

The high temperature and high pressure visualization pressure-volume-temperature (PVT) experiments of different gas media-crude oil were carried using the interface disappearance method. There are two...

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Revolution and significance of “Green Energy Transition” in the context of new quality productive forces: A discussion on theoretical understanding of “Energy Triangle”

Considering the demands, situations and trends in respect to global climate change, carbon neutrality and energy transition, the achievements and significance of the global green energy transition and...

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Model construction and implementation of Ordos Energy Super Basin, NW China

Taking the Ordos Basin as an example, this paper proposed that the construction of an energy super basin should follow the principle of “more energy, less carbon, and better energy structure”. The modeling...

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Fracture initiation and propagation in soft hydraulic fracturing of hot dry rock

By considering the thermo poroelastic effects of rock, the constitutive relationship of fatigue deterioration of rock under cyclic loading, elastic-brittle failure criteria and wellbore stress superposition...

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Advances and trends of non-marine shale sedimentology: A case study from Gulong Shale of Daqing Oilfield, Songliao Basin, NE China

This study took the Gulong Shale in the Upper Cretaceous Qingshankou Formation of the Songliao Basin, NE China, as an example. Through paleolake-level reconstruction and comprehensive analyses on types...

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Formation conditions of deep to ultra-deep large composite buried-hill hydrocarbon reservoirs in offshore Bohai Bay Basin, China

Based on the data from 3D seismic surveys, drilling, sidewall coring, thin sections, and tests, this paper analyzes Meso-Cenozoic geotectonic dynamics, buried-hill reservoir characteristics, and differential...

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Research progresses in geological theory and key exploration areas of coal-formed gas in China

Based on the research progress of the geological theory of coal-formed gas, the contributions of coal-formed gas to the natural gas reserves and production in China and to the development of natural...

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Mechanisms of microbubble vibration in water-gas dispersion system enhancing microscopic oil displacement efficiency

Two etching models, the spherical-rod standard pore channel and the pore structure, were used to conduct displacement experiments in the water-gas dispersion system to observe the morphological changes...

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Global oil and gas development situation, trends and enlightenment in 2023

This paper presents an analysis of four aspects, including the distribution and production of global oil and gas fields, the distribution and changes of remaining recoverable reserves, the differences...

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Connotation and research strategy of the whole petroleum system

Traditional petroleum system theories emphasize the restoration of the accumulation process from “source” to “trap”. The main oil and gas resources in the concept are conventional oil and gas, lacking...

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Evaluation of source rocks and prediction of oil and gas resources distribution in Baiyun Sag, Pearl River Mouth Basin, China

By conducting organic geochemical analysis of the samples taken from the drilled wells in Baiyun Sag of Pearl River Mouth Basin, China, the development characteristics of hydrocarbon source rocks in...

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CO2 high-pressure miscible flooding and storage technology and its application in Shengli Oilfield, China

There are various issues for CO2 flooding and storage in Shengli Oilfield, which are characterized by low light hydrocarbon content of oil and high miscible pressure, strong reservoir heterogeneity...

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Fracture-controlled fracturing mechanism and penetration discrimination criteria for thin sand-mud interbedded reservoirs in Sulige gas field, Ordos Basin, China

Considering the problems in the discrimination of fracture penetration and the evaluation of fracturing performance in the stimulation of thin sand-mud interbedded reservoirs in the eighth member of...

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Exploration breakthrough and factors for enrichment and high-yield of hydrocarbons in ultra-deep clastic rocks in Linhe Depression, Hetao Basin, NW China

Based on drilling and logging data, as well as geological experiments, the geological characteristics and factors controlling high-yield and enrichment of hydrocarbons in ultra-deep clastic rocks in...

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Dynamic simulation of differential accumulation history of deep marine oil and gas in superimposed basin: A case study of Lower Paleozoic petroleum system of Tahe Oilfield, Tarim Basin, NW China

According to the complex differential accumulation history of deep marine oil and gas in superposition basins, the Lower Paleozoic petroleum system in Tahe Oilfield of Tarim Basin is selected as a typical...

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Organic matter enrichment model of fine-grained rocks in volcanic rift lacustrine basin: A case study of lower submember of second member of Lower Cretaceous Shahezi Formation in Lishu rift depression of Songliao Basin, NE China

Based on sedimentary characteristics of the fine-grained rocks of the lower submember of second member of the Lower Cretaceous Shahezi Formation (K1sh2L) in the Lishu rift depression, combined with...

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