Fracture features and fault influence on gas accumulation in the Longmaxi Formation in Changning block, southern Sichuan Basin
October 2024
The Lower Silurian Longmaxi Formation is a major horizon for shale gas development in the Changning block in Sichuan Basin. In this study, the fracture features in the Longmaxi Formation in the Changning...
Share article
A novel EUR prediction model for fractured horizontal shale gas wells based on material balance theory
October 2024
Accurately predicting the estimated ultimate recovery (EUR) of shale gas wells is key to formulating a shale gas reservoir development plan. However, in practice, determining the EUR remains challenging...
Share article
Experimental study on the diffusion process of natural gas from buried pipelines to underground confined spaces
October 2024
In recent years, leakage from buried gas pipelines has been a frequent occurrence around the world. Leaked gas can quickly diffuse and accumulate in adjacent confined spaces, such as inspection wells,...
Share article
Impact of rock strength degradation by fluid intrusion on borehole stability in shale
October 2024
The interaction between shale bedding planes and fluids significantly weakens their structural integrity, profoundly affecting borehole stability in shale reservoirs. However, traditional analyses often...
Share article
Simulation analysis of gas–liquid flow and mass transfer in a shaking triethylene glycol dewatering absorber
August 2024
Tall towers with large diameters on floating liquefied natural gas devices are highly sensitive to sway. If tower equipment is relatively high, swaying can easily cause uneven gas–liquid contact in...
Share article
Analyses of the characteristics and main controlling factors of shale pores in the Niutitang Formation in the Guizhou region
August 2024
The shale of the Lower Cambrian Niutitang Formation in the Guizhou region has undergone complex diagenesis and has developed different types of pore textures, which affect the occurrence status of shale....
Share article
Creep behavior of marine Wufeng–Longmaxi Formation shales in the Sichuan Basin, Southwest China characterized at micro scale: A case study of exploration well SQ-1 in Sanquan Town, Nanchuan District, Chongqing
August 2024
Creep behavior is a very important attribute of shale and is crucial in the design of hydraulic fracturing schemes to ensure the long-term stable development of shale gas. However, how different shale...
Share article
Investigation of the effect of bedding and confining pressure on the energy evolution of shale during the unloading process
August 2024
To explore the effect of bedding and initial confining pressure on the energy evolution characteristics of shale during the unloading process, samples were drilled with different bedding angles, unloading...
Share article
Hydrocarbon accumulation process and reservoir-forming models of structure A in the central inversion tectonic belt of the Xihu Depression, East China Sea Basin
August 2024
The Huagang Formation of the central inverted structural tectonic belt structure A in the Xihu Depression has abundant hydrocarbon resources. This is an important area for exploration and development...
Share article
Optimization of Jiyang depression block X shale condensate reservoir well spacing based on geology–engineering integration
August 2024
Appropriate well spacing is crucial for the efficient development of shale reservoirs, as it is closely related to the degree of resource utilization. Well spacing design is influenced by both fracturing...
Share article
Numerical modeling of deep coalbed methane accumulation in the central-eastern Ordos Basin, China
August 2024
Deep coalbed methane (CBM) has become one of the most significant potential sources of natural gas in China. However, the exploration and development of deep CBM in China is still in an initial stage,...
Share article
Exploring the prospects of deep natural gas resources from the geochemical parameters of the Shahejie Formation source rocks in the Banqiao depression
August 2024
Deep natural gas is an important field and direction for oil and gas exploration and development in the Banqiao depression. The geochemical characteristics of the Paleogene Shahejie Formation source...
Share article
Experimental study and thermodynamic modeling of CO2+CH4 gas mixture hydrate phase equilibria for gas separation efficiency
August 2024
Gas separation is a critical application of gas hydrates, and accurately predicting separation performance is crucial. In this study, we used thermodynamic calculations to predict the equilibrium phase...
Share article
Experimental study on directional fracturing by slotted hydraulic blasting in underground drilling
August 2024
This paper proposes a method for creating a three-dimensional (above-ground and underground) fracture network in deep coalbed methane (CBM) reservoirs, which is the directional fracturing by slotted...
Share article
Characteristics of middle-high-rank coal reservoirs and prospects for CBM exploration and development in western Guizhou, China
June 2024
Western Guizhou is a favorable region for coalbed methane (CBM) exploration and development in Guizhou Province. Affected by complex geological conditions, the heterogeneity of middle-high rank coal...
Share article
Measures and results of prevention and control on casing deformation and frac-hit in deep shale gas wells in southern Sichuan Basin
June 2024
Casing deformation and frac-hit pose significant challenges to the development of deep shale gas in southern Sichuan Basin. By analyzing the mechanism and main control factors of casing deformation...
Share article
The response characteristics and damage effects of large LNG storage tanks subject to the coupled effects of explosion shock waves and fire
June 2024
As the demand and import of liquefied natural gas (LNG) increase, large LNG receiving stations are being constructed. LNG leakage can lead to fire or explosion accidents. The simultaneous occurrence...
Share article
The relationship between the time-varying law of the hydrostatic pressureof cement slurry and the early hydration process
June 2024
Annular channeling has seriously troubled deep oil and gas exploitation, and the reduction of hydrostatic pressure of cement slurry in the waiting stage is considered one of the main causes of early...
Share article
Research on the influence of mineral heterogeneity under different CO2 injection schemes in low permeability reservoirs
June 2024
In the pursuit of sustainable oil and gas resource extraction, the innovative integration of carbon capture, utilization, and storage (CCUS) technology has emerged as the most promising approach. During...
Share article
Numerical simulation of the development of hydrate-bearing layers by depressurization of radial wells
June 2024
A perpendicular bisector unstructured grid was used for meshing a model with radial wells, and the non-orthogonal correction of the flux calculation was implemented in the Tough+Hydrate software. A...
Share article
