Managing oil production from reservoirs to maximize the future economic return of the asset is an important issue in petroleum engineering. One of the most important problems is the prediction of water flooding performance. Traditional strategies…
Managing oil production from reservoirs to maximize the future economic return of the asset is an important issue in petroleum engineering. One of the most important problems is the prediction of water flooding performance. Traditional strategies…
Managing oil production from reservoirs to maximize the future economic return of the asset is an important issue in petroleum engineering. One of the most important problems is the prediction of water flooding performance. Traditional strategies…
Managing oil production from reservoirs to maximize the future economic return of the asset is an important issue in petroleum engineering. One of the most important problems is the prediction of water flooding performance. Traditional strategies…
Development of NanoSurfactants (NSs), encapsulated petroleum sulfonates, is in progress for use as one of the most cost efficient surfactants in chemical enhanced oil recovery (CEOR) applications under extreme conditions. This work provides a better…
Various aspects of the oil fields in terms of microbial activity (souring, biocorrosion, etc.) and oil production (polymer flooding, etc.) have been evaluated through a variety of experiments. The primary step to study these properties in the…
CO2 flooding has been recognized as one of the major alternatives for CO2 emission reduction and as well as increasing in the recovery from the oil reservoirs. However, CO2 is scrutinized for its potential low efficiency for oil recovery coupled with…
Geologic carbon storage projects aim to permanently trap large volumes of CO2 in reservoir rock sealed with low permeability layers. As high-pressure supercritical or liquid CO2 is injected, hydromechanical and chemical processes caused by the…
The application of non-hydrocarbon gas injection for enhanced gas and condensate recovery (EGCR) is still in a developmental stage as the mixing/interaction between the injected gas and resident reservoir fluid is yet to be extensively understood and…
Aquifer storage and recovery (ASR) is a solution for regions experiencing groundwater shortages, but is unexplored in wet regions such as Louisiana, which is experiencing aquifer overdrafting at alarming rates. Surface storage reservoirs are…
Leakage pathways through caprock lithologies for underground storage of CO2 and/or enhanced oil recovery (EOR) include intrusion into nano-pore mudstones, flow within fractures and faults, and larger-scale sedimentary heterogeneity (e.g., stacked…
Optimal injector selection is a key oilfield development endeavor that can be computationally costly. Methods proposed in the literature to reduce the number of function evaluations are often designed for pattern level analysis and do not scale…
The gravity effects of the possible reservoir scenarios after primary exploitation are tested in this work. Starting from the exploitable volume after primary hydrocarbon production of the very small and deep Volve field in the North Sea, we model…
The industrial development of Xinjiang is facing serious carbon emissions and water shortage problems in this region. It is urgent to find a sustainable development way. CO2 geological storage combined with enhanced water recovery (CO2-EWR) is a…
Carbon capture and storage (CCS) has been increasingly looking like a promising strategy to reduce CO2 emissions and meet the Paris agreements climate target. To ensure that CCS is safe and successful, an efficient monitoring program that will…
Hydrogen is currently assessed as a future clean fuel in a hydrogen economy. However, one key problem with implementing a full-scale hydrogen economy is hydrogen storage (as hydrogen is highly compressible and volatile). One solution for this problem…
When CO2 is injected into hydrocarbon reservoirs for enhanced oil recovery (EOR), the minimum miscibility pressure (MMP), which defines as the lowest pressure of generating a miscible phase, is an important parameter to determine whether the…
A potential risk of injecting CO2 into storage reservoirs with marginal permeability ( 10 mD (1 mD = 1015 m2)) is that commercial injection rates could induce fracturing of the reservoir and/or the caprock. Such fracturing is essentially fluid-driven…
Based on the resource survey results of seawater pumped storage power station (PSPS) sites in China, the reasonable range of key technical indexes of average head, installed capacity and distance to height ratio etc. of power station site, is…
Interfacial tension (IFT) between oil and brine is key to determine the Capillary Number, which governs capillary forces in the porous medium. As a result, changes in IFT affect the displacement efficiency and the residual oil saturation having…
Subsurface porous formations provide large capacities for underground hydrogen storage (UHS). Successful utilization of these porous reservoirs for UHS depends on accurate quantification of the hydrogen transport characteristics at continuum (macro)…
Biodegradation of crude heavy oil was investigated with Chelatococcus daeguensis HB-4 that was isolated from the produced fluid of Baolige Oilfield in China. Batch growth characterization and crude oil degradation tests confirmed HB-4 to be…
Underground water-sealed oil-storage caverns still face many challenges after completion, such as oil leakage and excessive water inflow into caverns. However, there is a lack of high quality and efficient operation precedent for large-scale…
Reservoir thermal energy storage ("RTES") in high porosity and high permeability sedimentary settings offers the potential for large-scale and long-term heat energy storage for future any-time electricity production. Solar-generated thermal energy or…
Based on the mechanisms of gravity displacement, miscibility, viscosity reduction, and imbibition in natural gas flooding, an integrated reservoir construction technology of oil displacement and underground gas storage (UGS) is proposed. This paper…
The potential of water alternating gas (WAG) flooding in CO2 storage was exploited using experimental and numerical simulation methods in this study. Through comparing experiments results of WAG flooding and continuous CO2 flooding, WAG flooding…
In this article, we have investigated interfacial tensions (IFTs) of anionic-nonionic surfactant fatty alcohol polyoxyethanol carboxylate (CnEOmC) and their mixed solutions against n-alkanes, crude oil and model oils containing crude oil fractions,…
Compared to sole gas flooding, foam flooding provides superior mobility control, enhanced sweep, and greatly improved oil recovery from depleted oil reservoirs. However, since most modern oil reservoirs are located at higher depths and further away…
Carbon dioxide storage combined with enhanced oil recovery (CCS-EOR) is an important approach for reducing greenhouse gas emissions. We use pore-scale imaging to help understand CO2 storage and oil recovery during CCS-EOR at immiscible and…
The global storage space for crude oil is now facing intense challenges due to excess supply. In this situation, increasing oil storage capacity is urgently required. The currently available oil storage facilities, such as tanks and underground…
Underground oil storage is a viable technique to increase energy security in the context of global concern for oil demand and supply. When the economic conditions permit, it makes sense to store oil in water-flooded, water-wet sandstone reservoirs…
The demand for crude oil is continuously increasing every year, and the discovery of new oil reservoirs is declining. Crude oil recovery from the mature and developed fields is somewhere between 20 and 40% of the original oil in place. Therefore, it…
Miscible CO2 injection process has become widely used technique for the enhanced oil recovery in low permeability reservoirs. Core flooding experiments and field test of CO2 miscible flooding in low permeability sandstone reservoirs and its influence…
Water flooding timing is the research focus in the process of reservoir development, especially for offshore reservoir, reasonable water flooding timing can ensure better development effect, at the same time, it can save the investment cost in the…
On Petrocedeno field has been developed a Polymer Flood Pilot with the purpose of evaluating the applicability of this technology in extra-heavy oil reservoirs and considering its uses on the rest of the field. For the integrity of this project it is…
This paper presents the design of a polymer flood pilot in a very heterogeneous, sour Heavy Oil reservoir (referred to as HO Reservoir in this paper), which has three times the salinty of sea water with a high mineral content. In addition, the paper…
This work aims to explore the overflow characteristics of a vertical H2S-containing natural gas well. A two-phase flow model for H2S-containing natural gas well combining with a transient temperature prediction model was established to simulate the…
The technical advantages of air injection development of different oil reservoirs in China were introduced. Based on the latest research results of laboratory and field tests, the oxidation reaction features of both light and heavy crude oil at…
The physical chemistry of the brine-crude oil interface is immensely complex as a result of the complexity of the crude oil itself, and access to the detailed phenomena occurring at this interface is extremely difficult. Understanding these phenomena…
The Triassic Chang6 extra-low permeability reservoir in Ansai Oilfield has entered the period of medium to high water cut, and the contradiction of water flooding development is increasingly prominent. The single water flooding development has…
South part of NN reservoir, located at Bohai Bay of China, has reservoir characteristics of complex oil-water contact system, thin single pay zones of 6~8 m and heavy oil viscosity with 413~741mPas. At initial natural energy production stage, daily…
With the help of large-scale physical simulation experiment technology, the physical simulation experiments of the CO2 huffn-puff with the staged-fracturing horizontal well could be acheived. We studied the production process of CO2 huffnpuff and…
Heavy oil reservoirs remain challenging for surfactant-based EOR. In particular, selecting fine-tuned and cost effective chemical formulations requires extensive laboratory work and a solid methodology. This paper reports a laboratory feasibility…
While wettability alteration is widely accepted as the dominant mechanism underlying enhanced oil recovery (EOR) in sandstone reservoirs under low salinity water flooding (LSWF) conditions, the effectiveness of LSWF still varies substantially between…
Hydrocarbon gas flooding/Huff-n-Puff (HNP) can improve the oil recovery in the unconventional reservoirs. Here, the mechanisms accounting for fluid flow in the low-permeability and ultra-low permeability reservoirs were experimentally and…
The first ever polymer flood field pilot to enhance the recovery of heavy oils on the Alaska North Slope is ongoing. This study constructs and calibrates a reservoir simulation model to predict the oil recovery performance of the pilot through…
One of the main problems with the bottomhole formation zone processing is the choice of an acid composition adapted to the peculiarities of the geological structure of the facility. The highest technological effect of the geological and technical…
The Rio Grande Valley (Neuquen Basin, Argentina) is a large oil field where voluminous igneous sill complexes are emplaced in different levels of the sedimentary sequence in a fold and thrust belt setting. These sills are predominantly emplaced in…
In petroleum production, microbial research has been widely carried out to serve different engineering applications. For instance, studies on microbial-induced corrosion (MIC) control and microbial-enhanced oil recovery (MEOR) focus on the microbial…
Primary oil recovery is the first stage of hydrocarbon production in which a reservoir uses its natural energy to force hydrocarbon to its wellbore. Secondary oil recovery comes to play when hydrocarbons can no longer be further produced by natural…