Blar i Institutt for geovitenskap og petroleum på tidsskrift "Journal of Petroleum Science and Engineering"
Viser treff 1-20 av 30
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A reduced random sampling strategy for fast robust well placement optimization
(Journal article; Peer reviewed, 2019)Model-based decision-making in oilfield development often involves hundreds of computationally demanding reservoir simulation runs. In particular, well placement optimization under uncertainty in the geologic representation ... -
Analysis of cuttings concentration experimental data using exploratory data analysis
(Peer reviewed; Journal article, 2022)Cuttings transportation is a complex phenomenon involving many inter-acting variables. Experimental investigations on cuttings transport are carried out by different research groups for decades and varying findings are ... -
Automated decision support methodology for early planning phase of a multi-reservoir field
(Peer reviewed; Journal article, 2021)The field planning process is a crucial phase in the life of a hydrocarbon field when many design features must be decided upon. The field development team has the task of finding a configuration of these field design ... -
Automatic lithology prediction from well logging using kernel density estimation
(Journal article; Peer reviewed, 2018)Technologies of real-time data measurement during drilling operation have kept the attention of petroleum industries in the past years, especially with the benefit of real-time formation evaluation through logging-while-drilling ... -
Cement sheath modification using nanomaterials for long-term zonal isolation of oil wells: Review
(Journal article; Peer reviewed, 2017)Well cementing is an important operation during drilling and completion of oil wells. The cement sheath must maintain well integrity behind the casing and provide long-term zonal isolation to ensure safety and prevent ... -
Collapse prediction of pipe subjected to combined loads
(Peer reviewed; Journal article, 2020)Prediction of tubular performance has over the last decades improved with models that are more accurate. There is a trend in the oil and gas industry where traditional uniaxial modelling is given less importance and the ... -
Comparing mechanical and ultrasonic behaviour of a brittle and a ductile shale: Relevance to prediction of borehole stability and verification of shale barriers
(Peer reviewed; Journal article, 2019)Borehole collapse during drilling operations in shale formations is a well-known and costly problem within the petroleum industry. Recently it has become evident that shales may also form sealing barriers around the casing, ... -
Downhole failures revealed through ontology engineering
(Peer reviewed; Journal article, 2020)Frequency of failures occurring during offshore oil-well drilling do not diminish over time, probably due to increased operational complexity. The volume and frequency of information generated during the drilling process ... -
Early field planning using optimisation and considering uncertainties - Study case: Offshore deepwater field in Brazil
(Peer reviewed; Journal article, 2021)During early phases of oil field development, field planners must decide upon the optimal number of wells and optimal field plateau rate, usually by performing sensitivity studies. These design choices are then “frozen” ... -
The effect of upstream inlet choking and surfactant addition on the performance of a novel parallel pipe oil-water separator
(Peer reviewed; Journal article, 2020)This paper reports the effect of inlet choking and addition of surfactant on the performance of a parallel pipe oil-water separator. These two issues can have a strong effect on oil-water separation in real hydrocarbon ... -
Elucidation of the mechanistic aspects of chemical EOR in viscous oil systems
(Peer reviewed; Journal article, 2022)Chemical enhanced oil recovery techniques have been suggested as efficient alternatives to thermal methods in many thin/small viscous oil reservoirs in western Canada. These acidic oil reservoirs have been screened as good ... -
Gradient-based constrained well placement optimization
(Journal article; Peer reviewed, 2018)A novel well placement gradient approximation methodology is developed based on performing finite difference approximations of augmented Lagrangian derivatives within the adjoint formulation. The methodology is efficient ... -
Hole-cleaning performance comparison of oil-based and water-based drilling fluids
(Journal article, 2017)Cuttings transport is a topic of great interest in the oil and gas drilling industry. Insufficient cuttings transport leads to several expensive problems. Knowledge and selection of the drilling fluids is one of the important ... -
Interwell connectivity identification in immiscible gas-oil systems using statistical method and modified capacitance-resistance model: a comparative study
(Peer reviewed; Journal article, 2020)Interwell connectivity identification between injector-producer well pairs and hydrocarbon production estimation are essential parameters in reservoir management, which can determine unrecovered oil volume and reservoir ... -
A material balance model based on mass conservation in the producing layer and gas and water injection in non-communicating gas-cap and aquifer layers
(Peer reviewed; Journal article, 2021)In this work a material balance model has been developed, expanding the previous work of Borthne (1986), based on: the modified black-oil model, mass-conservation in the producing layer, gas and water injection in ... -
Modified discrete element method (MDEM) as a numerical tool for cement sheath integrity in wells
(Peer reviewed; Journal article, 2021)Cement sheaths undergo extreme loading conditions in wells during subsurface operations. A damaged cement sheath may lead to fluid communication between different formation layers and fluid migration up to the surface, ... -
A novel wellbore strengthening method by using rotary jet while drilling
(Journal article, 2020)Lost circulation is one of the most common and costly problems in drilling operations. Improving the wellbore strengthening by plugging drilling induced fractures using rotary jet method is a novel and effective method to ... -
Observations on and use of curves of current dimensionless potential versus recovery factor calculated from models of hydrocarbon production systems in Journal of Petroleum Science and Engineering
(Peer reviewed; Journal article, 2021)In this work, curves of current dimensionless potential versus recovery factor are computed with models of hydrocarbon production systems. Additionally, a method to estimate production profiles using curves of current ... -
Optimization of WAG in real geological field using rigorous soft computing techniques and nature-inspired algorithms
(Peer reviewed; Journal article, 2021)To meet the ever-increasing global energy demands, it is more necessary than ever to ensure increments in the recovery factors (RF) associated with oil reservoirs. Owing to this challenge, enhanced oil recovery (EOR) ... -
Optimizing initiation time of waterflooding under geological uncertainties with Value of Information: Application of simulation-regression approach
(Peer reviewed; Journal article, 2022)Reservoir Management (RM) is an example of sequential decision problems in the oil and gas industry. Therefore, implementing Decision Analysis (DA) tool to systematically resolve such problems has been a common practice. ...