A comprehensive analysis of HPHT drilling fluids: Advances in formulation, rheology, AI/ML utilisation, and industry challenges
Available online 29 May 2026
High-pressure and high-temperature (HPHT) drilling presents significant challenges to conventional drilling fluids due to extreme downhole environments that compromise rheology, suspension integrity,...
Review on chemical enhanced oil recovery using polymer flooding: Fundamentals, experimental and numerical simulation
June 2020
The EOR techniques are employed to recover more oil from mature reservoirs after the primary and secondary oil production stages. Polymer flooding as a chemical EOR method involves adding polymer molecules...
Evolution law of stress induced by pressure depletion in fractured shale reservoirs: Implications for subsequent refracturing and infill well development
February 2025
Stress changes associated with reservoir depletion have been frequently observed. Stress evolution within and around the drainage areas can affect the completion of infill wells and refracturing considerably....
Advancing reservoir characterization and optimal sweet spot identification: A review of artificial intelligence and machine learning applications
Available online 30 May 2026
Accurate reservoir characterization remains a critical challenge during the early stages of reservoir development. While traditional methods have dominated the oil and gas industry, recent advancements...
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...
Advancements and Applications of Smart Water Injection in Enhanced Oil Recovery: Mechanisms, Economic Feasibility, and Synergies with Other EOR Techniques
Available online 11 June 2026
Smart water injection has emerged as a cost-effective and environmentally sustainable enhanced oil recovery (EOR) strategy for carbonate and sandstone reservoirs. This review presents a comprehensive...
Enhanced heavy and extra heavy oil recovery: Current status and new trends
September 2024
Due to the increased demand for energy resources these days, especially due to the Russian-Ukrainian war, the focus of the major countries is turning strongly towards improving oil production, especially...
Solid amine sorbents for CO2 capture by chemical adsorption: A review
March 2017
Amines are well-known for their reversible reactions with CO2, which make them ideal for CO2 capture from several gas streams, including flue gas. In this respect, selective CO2 absorption by aqueous...
Big Data analytics in oil and gas industry: An emerging trend
December 2020
This paper reviews the utilization of Big Data analytics, as an emerging trend, in the upstream and downstream oil and gas industry. Big Data or Big Data analytics refers to a new technology which can...
Significant aspects of carbon capture and storage – A review
December 2019
Excessive emission of greenhouse gases into the atmosphere has resulted in a progressive climate change and global warming in the past decades. There have been many approaches developed to reduce the...
Most common surfactants employed in chemical enhanced oil recovery
June 2017
Chemical enhanced oil recovery (EOR) and particularly surfactant injection has recently received a great deal of attention. The suggested recovery mechanisms after injecting surfactants include wettability...
Advances in Underground Gas Storage: A Review of Current Practices and Future Prospects
Available online 30 April 2026
Underground gas storage (UGS) plays a vital role in ensuring energy security and supporting the transition to a low-carbon energy future by enabling the large-scale storage of methane-rich natural gas...
Relative permeability and capillary pressure estimation via physics-informed machine learning and reinforcement learning
June 2026
Accurately predicting multiphase fluid flow in oil and gas reservoirs is crucial to optimizing production and minimizing costs. However, traditional numerical reservoir simulations are computationally...
Development status of integrated CO2 fracturing-enhanced recovery-storage technology
June 2026
Driven by the dual objectives of the global energy industry—substantially enhancing hydrocarbon recovery and achieving long-term CO2 geological sequestration—this paper systematically reviews the development...
Reservoir characterization, seal integrity assessment, and monitoring to ensure safe and effective implementation of carbon storage: A critical review
December 2025
CO2 storage is a potential strategy for decarbonizing the fossil-based power and industrial sectors while also serving as a bridge technology for a long-term transition to a zero-emission future. CO2...
CO2 utilization: Developments in conversion processes
March 2017
Carbon dioxide capture, utilization and storage (CCUS) –including conversion to valuable chemicals-is a challenging contemporary issue having multi-facets. The prospect to utilize carbon dioxide (CO2)...
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 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....
Reliability, Availability, Maintainability (RAM) study, on reciprocating compressors API 618
June 2017
The Oil & Gas industry has continuously increased its requirements and together with the high complexity of technological systems and the higher competitiveness of markets, has compelled providers to...
A comprehensive review on proppant technologies
March 2016
The main function of traditional proppants is to provide and maintain conductive fractures during well production where proppants should meet closure stress requirement and show resistance to diagenesis...
Role of biosurfactants in bioremediation of oil pollution-a review
September 2018
The energy resources mainly petroleum and petroleum hydrocarbons are major pollutants of the environment. The oil and oil products contamination may cause severe harm and hence, the attention has been...
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 review of recent developments in CO2 mobility control in enhanced oil recovery
September 2022
Carbon dioxide-enhanced oil recovery (CO2-EOR) has gained widespread attention in light of the declining conventional oil reserves. Moreover, CO2-EOR contributes to the reduction of the global emissions...
Hydrocarbon–helium coupled accumulation processes and formation mechanisms of helium-rich gas fields in the southwestern Ordos basin
June 2026
Helium is a critical strategic resource, with industrial helium primarily derived from helium-rich natural gas fields. Numerous large-scale natural gas fields with variable helium concentrations have...
A review on hydraulic fracturing of unconventional reservoir
March 2015
Hydraulic fracturing is widely accepted and applied to improve the gas recovery in unconventional reservoirs. Unconventional reservoirs to be addressed here are with very low permeability, complicated...
