Study on seepage model of Multiple Horizontal wells with complex fracture networks in tight Reservoir Based on boundary element method
Available online 1 June 2023
Horizontal well and volume fracturing technology are the key technologies to develop unconventional reservoirs. Tight reservoir is belonging to multi-scale seepage mediaafter fracturing, and theflow...
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Improved Joule Thomson equation of supercritical CO2-rich natural gas in separation system
Available online 1 June 2023
The rapid expansion of supercritical gas technology for high-content CO2 separation from natural gas is a promising avenue of research. However, CO2-rich natural gas cools immediately after being separated...
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Cellulose nanocrystals (CNCs) as a potential additive for improving API class G cement performance: An experimental study
Available online 30 May 2023
Integral cement sheaths are crucial for safe and economical hydrocarbon production throughout the well lifecycle. Cement additives tailor short- and long-term cement properties for various well conditions...
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Investigation of plugging performance and enhanced oil recovery of multi-scale polymer microspheres in low-permeability reservoirs
Available online 10 May 2023
Advanced water injection has become an effective method for developing low-permeability reservoirs. However, after a period of high yield from fracturing, the injected water flows rapidly along high-capacity...
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Research progress in natural gas hydrate reservoir stimulation
April 2023
Natural gas hydrate (hereinafter referred to as hydrate) is a kind of future energy with great potential. At present, the apparent factor hindering commercial hydrate development is the unqualified...
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Key issues and explorations in shale gas fracturing
April 2023
During volume fracturing of shale gas reservoirs, hydraulic fractures may readily communicate with natural fractures to propagate forward and induce the formations to slip along the fracture surfaces....
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Development model and identification of evaluation technology for Wufeng Formation–Longmaxi Formation quality shale gas reservoirs in the Sichuan Basin
April 2023
In 2012, China's first national shale gas demonstrations areas were set up in the Sichuan Basin. After 10 years' construction and practice, the giant marine shale gas area of 10 × 1012 m3 level is built...
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Research status and development trend of key technologies for enhanced geothermal systems
April 2023
Enhanced geothermal system (EGS) is a primary method to develop geothermal resources stored in hot dry rock (HDR), but it faces several key problems, such as unreasonable hydraulic fracture networks...
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A new numerical well test method of multi-scale discrete fractured tight sandstone gas reservoirs and its application in the Kelasu Gas Field of the Tarim Basin
April 2023
The cretaceous gas reservoir in Kelasu Gas Field of the Tarim Basin is a rare ultra-deep and ultra-high pressure fractured tight sandstone gas reservoir where multi-scale discrete fractures of matrix,...
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Typical misinterpretations and scientific concepts in well-logging geologic studies
April 2023
The method and theoretical system of well logging geology have been widely used in the fields of basic geology, petroleum geology and engineering geology, but the different response sensitivity of different...
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Models of helium enrichment in helium-rich gas reservoirs of petroliferous basins in China
April 2023
Owing to the characteristics of chemical inertness, low molecular weight, low boiling point, strong permeability and high heat conductivity, helium is extensively used in the fields of aerospace, low-temperature...
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A new method to evaluate the effects of mechanical heterogeneity on fault architecture in sedimentary sequences
Available online 5 April 2023
Geologists have long realized the important control of mechanical stratigraphy on fault nucleation, fault linkage and fault compartmentalization. However, uncertainties still exist concerning the mechanical...
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Exploration and development in the Zhaotong national shale gas demonstration area: Progress and prospects
February 2023
The Zhaotong national shale gas demonstration area in Yunnan (hereinafter referred to as demonstration area) is China's third largest national shale gas production base after Changning–Weiyuan in Sichuan...
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Exploration, development, and construction in the Fuling national shale gas demonstration area in Chongqing: Progress and prospects
February 2023
In September 2013, the National Energy Administration approved the establishment of Fuling national shale gas demonstration area (hereinafter referred to as the demonstration area), whose construction...
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Profitable development technology of the Changning-Weiyuan National Shale Gas Demonstration Area in the Sichuan Basin and its enlightenment
February 2023
Since the approval to establishment, the Changning-Weiyuan National Shale Gas Demonstration Area in the Sichuan Basin (hereinafter referred to as Demonstration Area) has been built up into a shale gas...
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Deep shale gas exploration and development in the southern Sichuan Basin: New progress and challenges
February 2023
There are abundant marine shale gas resources in the Sichuan Basin. After almost one decade of exploration and development, three national shale gas demonstration areas have been built in the Sichuan...
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Shale gas accumulation patterns in China
February 2023
Although significant progress has been made in the geological theory and exploration and development of shale gas in China, the research on the geological particularity and enrichment regularity associated...
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Coal bed methane gas in-place estimation for the North-Western region of Zimbabwe
February 2023
Coal Bed Methane (CBM) is natural gas occurring in coal seams. It can be used for domestic (heating and cooking) and industrial purposes, electricity generation, transportation (as compressed natural...
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Principal characteristics of marine shale gas, and the theory and technology of its exploration and development in China
February 2023
The exploration and development theory and technology of marine shale gas with shallow burial depth of 3500 m in South China has become mature after more than 10 years of practice. In order to continuously...
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Assessment of prospective gas resources and develop a production view of eastern foldbelt (block 18), Bangladesh using Monte Carlo simulation method
December 2022
In Bangladesh, 20 gas fields out of 28 produced 709.11 billion cubic feet (Bcf) through 112 wells against a vast amount of demand in the financial year 2021–22. Therefore, more gas fields need to be...
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Multi-objective balanced method of optimizing the heat extraction performance for hot dry rock
December 2022
Geothermal energy, a kind of clean and environmentally friendly energy source, is an important object of future natural resource development and utilization, among which, hot dry rock is one of the...
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Technical advances in well type and drilling & completion for high-efficient development of coalbed methane in China
December 2022
Compared with the United States, Australia, Canada, and other countries, China's coalbed methane reservoir is featured by low formation pressure, low permeability, low gas saturation, and strong heterogeneity,...
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Numerical simulation of thermo–hydraulic coupling processes in fractured karst geothermal reservoirs
December 2022
Fractured karst geothermal reservoir is a kind of typical geothermal reservoirs with the advantages of abundant storage water and easy reinjection of tail water during the period of geothermal utilization....
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China's hydrogen development strategy in the context of double carbon targets
December 2022
As a clean, low-carbon, efficient and renewable energy source, hydrogen has gradually become an important energy carrier to combat climate change and achieve sustainable development in the world. China...
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Evaluation of the heat extraction performance of an abandoned well pattern in multilayer commingled production oil reservoirs
December 2022
Oilfield geothermal energy is one important part of geothermal resources, and it can be developed and used for power generation and heating. The geothermal reserves and production of multi-layer sandstone...
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