Investigating the phase behavior of methane, ethane and their binary mixture confined in a 5 nm slit-like-pore with different wall types: Monte Carlo simulation study
December 2025
This study investigates the phase behavior of methane, ethane, and their binary mixture in both bulk and 5 nm slit-like pores with silica, anhydrite, calcite, dolomite, and montmorillonite walls using...
Application of organic cross-linked gel system for mitigating CO2 leakage from high temperature reservoirs
December 2025
This study aims to mitigate CO2 leakage in high-temperature reservoirs using an organic cross-linked gel system. The engineered fluid system was evaluated by a quantified rheological methodology and...
Predicting drilling mud equivalent circulating density with precision: A critical review of modern approaches
December 2025
Equivalent circulating density (ECD) denotes the density of drilling mud during circulation within a well. It is determined by integrating the equivalent static density with the pressure loss attributable...
A multi-zone characterization-based framework for effective storage capacity evaluation in water-bearing reservoirs
December 2025
The construction and operation of gas reservoir-type underground gas storage (UGS) facilities play a pivotal role in ensuring the safety and stability of natural gas supply. For gas reservoirs with...
A deep learning-aided approach for estimating field permeability map by fusing well logs, well tests, and seismic data
December 2025
Obtaining reliable permeability maps of oil reservoirs is crucial for building a robust and accurate reservoir simulation model and, therefore, designing effective recovery strategies. This problem,...
Novel thermochemical fracturing: A breakthrough in sustainable and efficient enhanced geothermal systems (EGS)
October 2025
Enhanced geothermal systems (EGS) are crucial for accessing earth's vast geothermal potential, particularly in low-permeability formations. However, conventional EGS stimulation via hydraulic fracturing...
Experimental study on the influence of heavy mud loss during workover on re-fracturing of high-pressure gas wells
October 2025
During workover operations in high-pressure gas wells, heavy mud losses may occur, reducing gas production. Refracturing is an effective means to restore production. The influence of heavy mud loss...
Enhancing P(AM-co-AA) hydrogel performance: Dual crosslinking effects on structural strength, thermal stability, swelling capacity, and rheological behavior for effective sand production control in oil reservoirs
October 2025
The efficiency of mechanical methods in controlling water production and fine migration in reservoirs has been limited, prompting researchers to focus on developing more resilient chemical methods....
Integrated selection and design method for PDC bits and positive displacement motor
October 2025
It has been found that the rock breaking tools combination of positive displacement motors (PDM) with different output parameters (positive rotational speed and positive torque) and polycrystalline...
Review of EOR-based techniques for enhancing sweep efficiency in carbon geo-storage
October 2025
Carbon dioxide (CO2) storage in geological reservoirs faces viscous fingering, gravity override, and poor mobility control due to its low viscosity and resulting inefficient distribution and compromised...
Research progress of thickener for supercritical carbon dioxide fracturing fluid
October 2025
Compared to traditional water-based fracturing fluids, which often result in reservoir fracturing damages, water consumption, and incomplete flowback, supercritical carbon dioxide (scCO2) fracturing...
Numerical simulation study on reservoir damage caused by adsorption and capture retention in polymer injection
October 2025
Polymer flooding is a key technology for improving oil recovery in reservoirs with heavy to medium crude oil. However, the adsorption and retention of polymers in reservoir pores can cause reservoir...
Investigation of natural surfactant for oil recovery potential
October 2025
Advancing the use of natural surfactants in enhanced oil recovery is crucial for sustainable practices in the oil and gas industry. This research assesses the applicability of neem-derived natural surfactants...
Recent progress of using carbon fiber in reinforcing cement-based composite and their enlightenment for oil-well cement future
October 2025
The incorporation of fibers represents a crucial technique for improving the mechanical properties and other relevant characteristics of cement-based composites (CBC), including concrete, cement mortar,...
Preparation of a supramolecular sand-inhibiting and water-control agent and study of its applicability to oil reservoirs
October 2025
To solve the problem whereby an oil reservoir with applicable boundaries of the current sand-inhibiting and water-control agent is unclear, a supramolecular sand-inhibiting and water-control agent PDKM...
Gradient boosting justification for predicting flow assurance issues in the bottomhole zone of gas-condensate wells
Available online 26 September 2025
During the development of gas-condensate fields, companies often face flow assurance issues. They may lead to unplanned standstills of wells, damaged assets, and substantial financial losses. To help...
Lithofacies paleogeography of the Ordovician and its petroleum exploration potential in the Middle-Upper Yangtze Area, South China
August 2025
Based on the drilling, logging and field analysis, this paper discusses the lithofacies paleogeography of the Ordovician and its petroleum potential in the Middle-Upper Yangtze Area, South China. Results...
Insights into the application of microfluidic platforms in enhanced oil recovery
August 2025
Enhanced oil recovery (EOR) technologies are used to recover most of the trapped crude oil from our limited reserves. With the escalating energy demand, EOR will achieve substantial economic benefits...
Acid-rock interaction investigation and the influence of fractures during matrix acidizing in carbonate rocks
August 2025
This study aimed to evaluate the effects of chemical dissolution on the properties of reservoirs by matrix acidizing, using synthetic carbonate rocks with and without fractures, prepared with limestone...
Synthesis and characterization of a novel high temperature resistant hydrophobic associative polymer for hydraulic fracturing
August 2025
Hydraulic fracturing is a critical process in oil and gas extraction, particularly in high-temperature deep and ultra-deep reservoirs where traditional polymers like partially hydrolyzed polyacrylamide...
A mini-review of water-alternating-CO2 injection process and derivations for enhanced oil recovery and CO2 storage in subsurface reservoirs
August 2025
Increasing carbon dioxide levels are significantly impacting the ecosystem, prompting the oil industry to explore innovative methods for reducing emissions and trapping CO2 while enhancing oil recovery....
Phase change material microcapsules used for cooling of ultra-deep oil/gas and geothermal drilling fluids
August 2025
Phase-change material (PCM) has a high potential to cool the drilling fluids for ultra-deep oil/gas wells and geothermal wells to ensure efficient drilling and resource exploitation. Because PCM tends...
The role of resins in crude oil rheology and flow assurance: A comprehensive review
August 2025
Resins are a significant component of crude oil, distinct from asphaltenes, and play a crucial role in influencing both rheological properties and flow characteristics. Understanding resin behavior...
A novel approach to modeling breakdown pressure dynamics using machine learning
August 2025
This study presents a novel machine learning (ML)-based approach for predicting breakdown pressure (BP) in hydraulic fracturing using experimental data. Unlike traditional analytical models that rely...
Design and performance evaluation of nano-based drilling fluid system for hydrate bearing sediments
August 2025
Well drilling operations are essential for the exploration and development of natural gas hydrates. However, under specific conditions, drilling fluids can invade reservoirs, leading to borehole instability...