Results 71 to 80 of about 4,407 (193)

Zoning Productivity Calculation Method of Fractured Horizontal Wells in High-Water-Cut Tight Sandstone Gas Reservoirs under Complex Seepage Conditions

open access: yes, 2023
Tight sandstone gas reservoirs generally contain water. Studying the impact of water content on the permeability mechanism of tight gas reservoirs is of positive significance for the rational development of gas reservoirs.
Reyizha Shayireatehan   +7 more
core   +1 more source

Quantitative characterization of pore structure of the Carboniferous–Permian tight sandstone gas reservoirs in eastern Linqing depression by using NMR technique

open access: yesPetroleum Research, 2018
Micro-nano scale pores can accurately and fastly be measured by the nuclear magnetic resonance (NMR) technique, which provides a new method to quantitatively characterize pore structures in tight sandstone.
Tao Fang   +7 more
doaj   +1 more source

Diagenetic alterations and deep high-quality reservoirs within deltaic distributary channel facies: a case study from the Permian Shihezi formation in the Hongde area, southwestern Ordos basin, China

open access: yesFrontiers in Earth Science
Deep tight gas reservoirs are considered important hydrocarbon exploration targets. High-quality reservoir prediction is critical for successfully exploring and developing deeply buried tight sandstone gas.
Xiaoming Wu   +12 more
doaj   +1 more source

Fractal Characterization of the Pore-Throat Structure in Tight Sandstone Based on Low-Temperature Nitrogen Gas Adsorption and High-Pressure Mercury Injection

open access: yes
The pore-throat structure is a critical factor in the study of unconventional oil and gas reservoirs, drawing particular attention from petroleum geologists, and it is of paramount significance to analyze to enhance oil and gas production.
Huanyu Xie   +13 more
core   +1 more source

Well Spacing Optimization for Tight Sandstone Gas Reservoir

open access: yes, 2010
In the past five years, tight sandstone gas reserves amounted to almost 50% of the newly proved natural gas reserves of PetroChina Co., Ltd. and will be one of the main targets of natural gas production for a long term.Means to determine the reasonable ...
Jianlin Guo   +4 more
core   +1 more source

A multi-scale geological–engineering sweet spot evaluation method for tight sandstone gas reservoirs

open access: yes, 2023
Exploration and development practices have proved that staged volumetric fracturing stimulation in horizontal wells is a key technology for tight sandstone gas development, and reservoir sweet spot is an important basis for the perforation position ...
Haiyan Zhu, Ding Gong, Bing Zhang
core   +1 more source

Quality grading system for tight sandstone reservoirs in the Quantou 4 Member, southern Songliao Basin, Northeast China

open access: yes, 2017
A grading system for tight sandstone reservoir quality is needed to predict tight oil enrichment areas and assess the resources. To explore the establishment of the grading system, a variety of research methods, such as rate-controlled mercury injection,
Shuangfang Lu   +2 more
core   +1 more source

Unexpected viscoelastic deformation of tight sandstone: Insights and predictions from the fractional Maxwell model

open access: yes, 2017
Tight gas is one important unconventional hydrocarbon resource that is stored in tight sandstone, whose mechanical property greatly influences the tight gas production process and is commonly believed to be simply elastic when designing the stimulation ...
Xiang Ding   +3 more
core   +1 more source

About origin of tight sandstone gas: To discuss with Academician Dai Jinxing

open access: yes, 2013
Tight sandstone gas belongs to unconventional natural gas. There is no unanimous agreement about the source of tight sandstone gas source. Both the Yuanba and Tongnanba gas fields in the Sichuan Basin produce tight sandstone gas from Xujiahe Formation ...
Hua QIN, Ruobing LIU, Feng YIN
core   +1 more source

Frost Damage in Tight Sandstone: Experimental Evaluation and Interpretation of Damage Mechanisms

open access: yes, 2020
Low-porosity tight rocks are widely used as building and engineering materials. The freeze–thaw cycle is a common weathering effect that damages building materials in cold climates.
Fan Zi   +4 more
core   +1 more source

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