Different from the conventional, unconventional natural gas accumulations have obvious particularity in reservoir forming conditions, enrichment mechanism, distribution modes, prediction method and exploration technology. Analyzing the reservoir…
The compatibility of an amine-based foaming agent, Duomeen CTM [C12-14N(CH3)C3N(CH3)2], and crude oil on supercritical CO2 foam transport are evaluated for a carbonate reservoir with high pressure and high temperatures (HPHT) and ultrahigh…
Carbon dioxide storage in geological formations is one of the mature strategies developed for controlling global warming. This paper represents a comprehensive experimental and geochemical modeling study to analyze CO2-brine-rock interactions in a…
CO2-based enhanced gas recovery (EGR) is an appealing method with the dual benefit of improving recovery from mature gas reservoirs and storing CO2 in the subsurface, thereby reducing net emissions. However, CO2 injection for EGR has the drawback of…
In a reservoir characterization study of the Hontomin deep saline aquifer, the impact of geological heterogeneities on reservoir storage capacity and the migration of the CO2 plume is explored. This work presents, for the first time, very long-term…
Three different outcrops are selected in this study, each representing a shallow-marine system with varying heterogeneity provided by siliciclasticcarbonate mixing that may form a small or large stratigraphic trap. The impact of these styles of mixed…
Based on a large number of field outcrops and cores taken systematically from boreholes, by microscopic observation, physical property analysis, mineralogy analysis, geochemical analysis etc., reservoir characteristics of the first member of Middle…
The objective of this work is to improve the geostatistical understanding of vertical (bed-normal) permeability (kz) and its influence on reservoir performance during CO2 enhanced oil recovery (EOR) and storage. kz is scrutinized far less often than…
To investigate the mechanism of local porosity modification in a carbonate reservoir caused by the acidic components associated with natural gas generation, a numerical model for the charging of natural gas rich in acidic components (CO2) was…
Carbon dioxide (CO2) geological storage (CGS) is considered as one of the feasible choices for large-scale CO2 emission reduction worldwide, and the primary issue in CGS is how to select areas favorable for storing CO2. The research conducted by…
High-Pressure Air Injection (HPAI) as an enhanced oil recovery (EOR) method has a high potential and has already been effectively applied for carbonate reservoirs development. The target object of the current research is a Kirsanovskoe oil field…
The present work describes a set of four in-situ combustion (ISC) tests for assessing the applicability of the technology for the heavy oil (19 API) carbonate field and determining the optimal initial oil saturation. The potential candidate for the…
After Well Gaoshi 1 realized great breakthrough of natural gas exploration in the Upper Sinian Dengying Formation of Gaoshiti-Moxi area in the core part of central Sichuan paleouplift, the Sichuan Basin in 2011, Well Jiaotan 1 achieved significant…
A major carbonate-cemented strata and carbonate concretions intercalated in the Early Miocene Kokozura Formation are common in the Izura area along the Pacific coast, in north Ibaraki, Japan. Chemotrophic mollusk fossils occur frequently with the…
Concrete, a mixture composed of a cementation agent, mineral aggregates, and water has the potential to serve as a gigaton-scale sink for carbon dioxide (CO2). This could make concrete the worlds largest CO2 utilization opportunity. CarbonBuilts…
Carbonate reservoirs represent a steadily growing part of sedimentary formations targeted for oil and gas exploration worldwide. It is currently evaluated that over 50% of the remaining conventional hydrocarbon reserves are in carbonate formations.…
When developing a high CO2 field, oil and gas companies must consider the best and most economical carbon capture and storage (CCS) plan. After considering the distance of the storage site and storage capacity, PETRONAS has identified 2 carbonate…
Brazilian presalt carbonate reservoirs are highly heterogeneous. This feature is mostly justified by the nature of the original depositional system and subsequently diagenetic processes. Consequently, reserve estimates and production forecasting are…
Large quantities of natural gases have recently been discovered in the marine carbonate formations in the Sichuan Basin, southern China. The origins and isotopic compositions of the gases are poorly understood and highly controversial. We examined…
Brine-dependent recovery, which involves injected water ionic composition and strength, has seen much global research efforts in the past two decades because of its benefits over other oil recovery methods. Several studies, ranging from lab coreflood…
The accurate quantification of the secondary porosity portion and the characterization of the macro-porous features seem achievable only through extensive logging services and lengthy coring campaigns. Traditional logging measurements have…
Remotely located oil fields with high gas-oil ratio and high carbon dioxide content impose challenges for efficient and sustainable gas processing and monetization. This work investigates gas-to-wire coupled to carbon dioxide enhanced oil recovery as…
The accurate quantification of the secondary porosity portion and the characterization of the macro-porous features seem achievable only through extensive logging services and lengthy coring campaigns. Traditional logging measurements have…
Concerns about climate change have persuaded the researchers to examine CO2 injection in the form of carbonated water (CW) into oil reservoir as a safe and effective CO2 storage and enhanced oil recovery process. Although interfacial tension (IFT)…