Mayur Pal

Mayur Pal
Kaunas University of Technology · Department of Applied Mathematics

PhD
Prof. Dept. of Mathematical Modelling, Kaunas Technological University (KTU), Lithuania

About

124
Publications
26,973
Reads
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797
Citations
Citations since 2016
60 Research Items
469 Citations
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
Introduction
Data Analytics, AI and ML, Numerical Methods for subsurface flows, Discrete Fracture Network modelling, Multiscale methods, Reactive Transport modelling, Computational Fluid Dynamics, Pore-scale modelling, Water Alternating Gas, Enhanced Oil Recovery Pilots, Improved Recoveries using Surfactant Flooding, LowSalinity EOR,
Additional affiliations
March 2022 - present
BASRECCS
Position
  • Program Chair
March 2017 - August 2021
North Oil Company Qatar
Position
  • Lead EOR
January 2017 - August 2021
SPE
Position
  • Program Chair

Publications

Publications (124)
Article
Full-text available
Convolutional neural networks have been created as deep learning-based approaches to automatically analyze photographs of concrete surfaces for crack diagnosis applications. Although deep learning-based systems assert to have extremely high accuracy, they frequently overlook how difficult it is to acquire images. Complex lighting situations, shadow...
Data
Data set used in papers: 1.) An Overview of Challenges Associated with Automatic Detection of Concrete Cracks in the Presence of Shadows 2.) Automatic Detection of Cracks on Concrete Surfaces in the Presence of Shadows
Research Proposal
Full-text available
2 PhD Positions @ KTU Faculty of Mathematics and Natural Sciences Position 1: Deep learning assisted subsurface data lab Position 2: Reactive transport modelling in presence of discrete fracture networks in porous media
Conference Paper
Full-text available
In this paper we explore the complexity of image classification for concrete crack detection in presence of complex shadow shapes. Challenges associated with application of deep learning-based methods to detect concrete crack in presence of shadows are elaborated in detail and a new deep learning approach, which allows for crack detection in presen...
Conference Paper
Full-text available
AI and ML-based deep learning approach involve using subsurface reservoir static, dynamic, and well production data to form a fully independent deep learning-based reservoir simulator with capabilities to perform history matching and production forecasting. The objective of this work is to use new AI and ML-based deep learning algorithms for perfor...
Code
This is Setup File for DFN Mesher - You can use it to created 2D and 3D Meshes. If you use this code for publishing work please refer to our paper on DFN Meshing https://doi.org/10.1080/10916466.2022.2033768
Presentation
Full-text available
Final Outcome of a research project demonstrating app and live demo for a concrete crack detection in a live image
Article
A large percentage of subsurface hydrocarbon reservoirs are characterized as very complex due to presence of small to large scale fractures. Modelling of multi-physics processes like, environmental flow, CO2 sequestration, hydrocarbon flows, etc., through such geologically complex reservoirs is challenging. Main challenges comes from the large scal...
Code
Setup file for generating discrete fracture meshes in 2 and 3 dimensions. The code can be installed on win 64 configuration on windows 7 and above.
Article
The objectives of this article it to present a water alternating gas (WAG) process evaluation methodology for a giant middle eastern carbonate reservoir. The methodology involves enhanced oil recovery through an immiscible hydrocarbon water alternating gas (WAG) injection method. Although water alternating gas injection is a proven enhance oil reco...
Conference Paper
In this paper, a numerical study of a flat plate collector integrated with porous copper foam is presented. The influence of the height of the porous foam, Darcy number and volumetric flow rate on the performance is presented.
Article
Full-text available
Detection and assessment of cracks in civil engineering structures such as roads, bridges, dams and pipelines are crucial tasks for maintaining the safety and cost-effectiveness of those concrete structures. With the recent advances in machine learning, the development of ANN- and CNN-based algorithms has become a popular approach for the automated...
Article
In this study, we investigate the feasibility of foam enhanced oil recovery (EOR) for a dual porosity and heterogeneous carbonate reservoir in the Middle East with medium temperature (55 °C) and high formation salinity (16% TDS). An Alkyl Poly-Glycoside (APG) surfactant was firstly selected based on the solubility tests and bulk foam tests. Afterwa...
Article
A microscale heterogeneity quantification methodology is presented, which uses petrographic image analysis with multiscale simulation. Petrographic images of micro-porous carbonate rocks are converted into microscale models with help of an image analysis workflow, which helps in assigning specific porosity, permeability and petro-physical propertie...
Article
The focus of this paper is on application of advance data analytics and deep machine learning methods for time series forecasting of injection/production data from subsurface hydrocarbon recovery processes. Injection and production data, from subsurface reservoir developed though implementation of water flooding recovery mechanism, is used with aim...
Conference Paper
The feasibility of foam enhanced oil recovery (EOR) for a heterogeneous carbonate reservoir in the Middle East with medium temperature (55°C) and high formation salinity (above 16% TDS) is presented here. The promising surfactant formulations were firstly evaluated based on solubility tests and bulk foam tests. Afterwards, a series of core flooding...
Conference Paper
Gas injection has been evaluated and implemented in a middle-eastern oil field as water alternating gas or WAG. It has been seen that WAG is economically viable and a robust EOR method for areas of the field which are homogenous and do not pose conformance issues. However, the application of WAG in heterogeneous parts of the field has not been wide...
Conference Paper
Objective/Scope: Wettability Alteration from oil-wet to water-wet condition is a very promising EOR technique for producing significant incremental oil recovery from oil-wet tight pores. A thorough lab program led to development of a wettability altering surfactant formulation and was validated via various laboratory Coreflood tests. Wettability A...
Article
Injection of sea water is the most common practice to displace oil in porous media in subsurface formations. In numerous studies, conventional surfactants at concentrations in the range of one weight percent, and above, have been proposed to be added to the injected water to improve oil recovery. Surfactants accumulate at the oil water-interface, a...
Conference Paper
Rigorous Monitoring of Offshore Surfactant Injection Trial in a Giant Middle Eastern Eastern Field: From Lab Analysis to Field Production Monitoring
Conference Paper
A Comprehensive Analysis of Water Alternating Gas Recovery Mechanisms in the Giant Middle Eastern Carbonate Field
Conference Paper
Wettability Alteration Surfactant Injection Trial in a Giant Middle Eastern Carbonate Field Field: Formulation Development from Laboratory to Field Implementation and Production Monitoring
Conference Paper
Foam Assisted Conformance Control for Giant Middle Eastern Offshore Oil Field: Experimental Evaluation
Conference Paper
An Innovative Approach for In-situ EOR Assessment of Smart Water Injection Method (SWIM) In a Giant Middle Eastern Carbonate Field
Data
Supporting Information for Estimation of Local Equilibrium Model Parameters for Simulation of the Laboratory Foam-Enhanced Oil Recovery Process Using a Commercial Reservoir Simulator
Conference Paper
Wettability Alteration (WA) as an Enhanced Oil Recovery (EOR) technique is screened for an oil wet carbonate offshore reservoir in this study. Surfactants can be used to change the rock wettability from oil-wet to water-wet conditions and can lead to unlocking significant incremental oil from oil-wet tight pores. A thorough lab program was designed...
Article
Full-text available
An accurate determination of the foam simulation parameters is crucial in modeling foam flow in porous media. In this paper, we present an integrated workflow to obtain the parameters in the local equilibrium foam model by history matching a series of laboratory experiments performed at reservoir conditions (131 F and 1500 psi) on Estaillades limes...
Code
2D/3D Discrete Fracture Network Meshing Code
Conference Paper
Low salinity water injection when effective in increasing oil recovery is often thought to be through increase in water wetting. Recently, oil-water interfacial rheology has been suggested to be related to oil recovery from low salinity water flooding. We have also discovered that addition of a very small amount of a functional molecule in the inje...
Preprint
Full-text available
Subsurface carbonate reservoirs are often characterized as very complex due to presence of small to large scale fault/fracture systems/networks and heterogeneities associated with them. Modeling of multi-physics processes like, environmental flow, CO2 sequestration, Oil and Gas flows, etc through such geologically complex carbonate reservoirs is of...
Article
Geo-sequestration of carbon dioxide (CO2) in saline formations is one of the feasible options for reducing the concentration of carbon in the atmosphere. This process involves the capturing of CO2 from emission sources followed by its compression and then injecting the compressed CO2 in deep geological formations for its long-term storage. The suit...
Conference Paper
Al-Shaheen Field, offshore Qatar, is responsible for 45% of Qatar’s crude oil production. Kharaib, the most prolific reservoir of Al-Shaheen Field, is an oil wet carbonate with an average porosity and permeability of 30% and 5mD respectively. Even after an extensive water-flood program for several years, there is substantial amounts of oil left beh...
Conference Paper
Surfactant injection as an EOR method is considered for the Al-Shaheen Field, offshore Qatar. The field is characterized by thin oil column, low permeability reservoirs, and large lateral variations in fluid properties. Currently, Al-Shaheen produces 45% of Qatar's total oil production. Kharaib, the most prolific reservoir of Al-Shaheen is an oil w...
Conference Paper
The objective of this paper is to present the learning and the challenges from operating the largest offshore high pressure water alternating hydrocarbon gas injection (HC-WAG) pilot, with injection capacity of approximately 100 mmscf of gas injection per day in the giant Al-Shaheen field offshore Qatar. The paper also aims to share the methodology...
Conference Paper
Geological sequestration of CO2 in carbonate formations is an emerging technique to reduce carbon concentration in atmosphere. During the course of CO2 geo-sequestration process the receiving reservoir is exposed to cyclic CO2-brine flooding. The objective of this study is to investigate the effect of cyclic CO2-brine flooding on carbonate core und...
Article
Two novel control-volume methods are presented for flow in fractured media, and involve coupling the control-volume distributed multi-point flux approximation (CVD-MPFA) constructed with full pressure support (FPS), to two types of discrete fracture-matrix approximation for simulation on unstructured grids; (i) involving hybrid grids and (ii) a low...
Conference Paper
Full-text available
Subsurface geological formations are often very complex due to presence of heterogeneity and fault/fracture systems. Often modelling of fluid flow through such geologically complex fractured systems is required to model multi-physics processes like, e.g., environmental flow, CO2 sequestration, Oil and Gas flows etc. Using traditional modelling appr...
Conference Paper
Full-text available
Subsurface geological formations are often very complex due to presence of heterogeneity and fault/fracture systems. Modelling of fluid flow through such geologically complex fractured systems is required to model multi-physics processes like, e.g., environmental flow, CO2 sequestration, Oil and Gas flows etc. Using traditional modelling approaches...
Conference Paper
Full-text available
Continuous emission of CO 2 in atmosphere due to increasing anthropogenic activities resulted in severe global warming. Hence, cost effective mitigating techniques such as CO 2 capturing and its subsequent sequestration in deep subsurface are urgently needed. The subsurface zones such as unmineable coal seams, depleted oil and gas reservoirs, and d...
Conference Paper
Full-text available
Objective Carbonates commonly have multi-scale heterogeneities. The impact of these heterogeneities can influence larger scale flow behaviours and are therefore important to understand. We present a microscale simulation methodology, which provides insights into the impact of microscale heterogeneities on the flow characteristics of microporous car...
Code
Meshing codes for 3-D structured and unstructured mesh generation.
Conference Paper
We investigate cell-centred finite-volume, control-volume distributed multipoint flux approximation (CVD-MPFA), with full pressure support (FPS), for discrete-fractures on unstructured grids. Fractures are modelled by lower-dimensional interfaces between matrix cells in the physical mesh but expanded to equi-dimensional cells in the computational d...
Presentation
Full-text available
Modelling Multi-phase flow in Reservoir Simulation
Article
This paper presents the development of funite-volume multiscale methods for quadri-lateral and triangular unstructured grids. Families of Darcy-ux approximations have been developed for consistent approximation of the general tensor pressure equation arising from Darcy's law together with mass conservation. The schemes are control-volume distribute...
Conference Paper
Microporous carbonates commonly have multi-scale heterogeneity. The impact of these heterogeneities can influence larger scale flow behaviours and are therefore important to understand. We are developing a microscale simulation methodology, which provides insights into the impact of microscale heterogeneities on the flow characteristics of a Middle...
Research
Full-text available
Matlab Scripts for Generating a simple 2D structured and Unstructured Mesh
Research
Full-text available
Matlab Scripts for Generating a Tehrahedral Mesh
Research
Full-text available
Matlab scripts for generating a 3D Prism Element Mesh
Research
Full-text available
Matlab Scripts for Generating Simple 3D Hex Mesh
Article
Full-text available
A novel cell-centred control-volume distributed multi-point flux approximation (CVD-MPFA) finite- volume formulation is presented for discrete fracture-matrix simulations in three-dimensions. The grid is aligned with the fractures and barriers which are then modelled as lower-dimensional interfaces located between the matrix cells in the physical d...
Conference Paper
Full-text available
A novel cell-centred control-volume distributed multi-point flux approximation (CVD-MPFA) finite-volume formulation is presented for discrete fracture-matrix simulations in three-dimensions. The grid is aligned with the fractures and barriers which are then modelled as lower-dimensional interfaces located between the matrix cells in the physical do...
Article
Full-text available
Subsurface reservoirs generally have a complex description in terms of both geometry and geology. This poses a continuing challenge in modeling and simulation of petroleum reservoirs owing to variations of static and dynamic properties at different length scales. Multiscale methods constitute a promising approach that enables efficient simulation o...
Article
Full-text available
Subsurface reservoirs generally have a complex description in terms of both geometry and geology. This poses a continuing challenge in modeling and simulation of petroleum reservoirs due to variations of static and dynamic properties at different length scales. Multiscale methods constitute a promising approach that enables efficient simulation of...
Conference Paper
A novel cell-centred control-volume distributed multi-point flux approximation (CVD-MPFA) finite-volume formulation is presented for discrete fracture-matrix simulations. The fractures are modelled as lower-dimensional interfaces between matrix cells. The nD pressure equation is solved in the matrix, coupled with an (n-1)D pressure equation solved...
Article
Full-text available
Density-driven flows occur in nature and are initiated by density contrast. Salinity and temperature differences are remarkably effective in initiating density-driven flow, which may instigate convective flow. In turn, convective flow is seen by many authors as key for solute and mass transport, which are important processes controlling dolomitizat...
Conference Paper
A cell-centered control-volume distributed multi-point flux (CVD-MPFA) finite volume formulation is presented for fractured porous media. Highly conductive fractures are modelled as lower-dimensional (1D) interfaces in between the (2D) matrix cells. Matrix-fracture flux transfer is incorporated into the MPFA formulation efficiently by the transfer...
Conference Paper
A higher resolution unstructured finite-volume method is presented for subsurface reservoir simulation. The flow equations involve an essentially hyperbolic convection equation coupled with an elliptic pres- sure equation resulting from Darcy’s law together with mass conservation. The focus is on the convective flux approximation on unstructured gr...
Conference Paper
Full-text available
A robusl and efficient simulation technique is developed on the basis of the extension of the mimetic finite-difference method (MFDM) to multiscale hierarchical-hexahedral (comer-point) grids by use of the multiscale mixed finite-clement method (MsMFEM). The implementation of the mimetic subgrid-discretization method is compact and generic for a la...
Article
This paper focuses on methods for fine scale modelling and presents development of multiscale methods with particular emphasis on the numerical flux approximation. Families of Darcy-flux approximations have been developed for consistent approximation of the general tensor pressure equation arising from Darcys law together with mass conservation. Th...
Conference Paper
Full-text available
Multiscale methods developed to solve coupled flow equations for reservoir simulation are based on a hierarchical strategy in which the pressure equation is solved on a coarsened grid and transport equation is solved on the fine grid as a decoupled system. The multiscale mixed finite-element (MsMFE) method attempts to capture sub-grid geological he...
Article
Full-text available
Significant volumes of the worlds proved reserves are in dolostone reservoirs. Scope for recover and success of new exploration plays depend on the chances of encountering dolostone reservoirs with good reservoir properties. Although dolostones make excellent reservoirs in favorable cases, the prediction of its location, geometry and rock propertie...
Article
SUMMARYA unified model of an induction‐stirred ladle in two and three dimensions is presented. Induction stirring of molten steel is a coupled multiphysics phenomena involving electromagnetic and fluid flow. Models presented in this paper gives a more accurate description of the real stirring conditions and flow pattern by taking into account the m...
Conference Paper
The mass and recoverability of oil and gas in unconventional reservoirs strongly depend on the understanding the petrophysical properties of the rocks at a large range of scales. Three-dimensional imaging is capable of unveiling the detailed microstructures within the rocks down to the nanometer scale. Using a multiscale imaging protocol, a Devonia...
Conference Paper
Full-text available
Subsurface reservoirs generally have a complex description in terms of both geometry and geol-ogy. This poses a continuing challenge in modelling and simulation of reservoirs due to variations at different length scales. Multiscale simulation is a new and promising approach that enables simu-lation of detailed geological model and the retention of...
Conference Paper
Full-text available
Subsurface reservoirs generally have complex geological and geometrical features, such as faults fractures, pinchouts, shales and layers defined on varying length scales. In addition the effect of heterogeneity leads to further multiscale features that cannot be modelled with desired precision on relatively coarse meshes. This has lead to developme...
Article
SUMMARYA family of flux‐continuous, locally conservative, control‐volume‐distributed multi‐point flux approximation (CVD‐MPFA) schemes has been developed for solving the general geometry‐permeability tensor pressure equation on structured and unstructured grids. These schemes are applicable to the full‐tensor pressure equation with generally discon...
Conference Paper
Simulation of End-member Scenarios of Density-driven flow: Prediction of Dolostone Geobody Dimensions Using Comsol Conxita Taberner, Mayur Pal, and Christian Tueckmantel Carbonate Reservoir Research, Shell GSNL, Rijswijk, The Netherlands Density-driven flows occur in nature and are initiated due to (i) density contrast and (ii) even minor heterog...
Article
Numerical modeling of flow through vuggy porous media, mainly vuggy carbonates, is a challenging endeavor. Firstly, because the presence of vugs can significantly alter the effective porosity and permeability of the medium. Secondly, because of the co‐existence of porous and free flow regions within the medium and the uncertainties in defining the...
Thesis
Full-text available
Over the years numerous computational fluid dynamics models have been developed in order to study the fluid flow in gas and induction stirred ladles. These models are used to gain insight in the industrial processes used in ladle treatment of steel. A unified model of an induction stirred Ladle in two and three dimensions is presented. Induction st...
Article
A robust and efficient simulation technique is developed on the basis of the extension of the mimetic finite-difference method (MFDM) to multiscale hierarchical-hexahedral (corner-point) grids by use of the multiscale mixed-finite-element method (MsMFEM). The implementation of the mimetic subgrid-discretization method is compact and generic for a l...
Article
A family of flux-continuous, locally conservative, finite-volume schemes has been developed for solving the general geometry-permeability tensor (petroleum reservoir-simulation) pressure equation on structured and unstructured grids and are control-volume distributed (textit Comput. Geo. 1998; 2:259–290; Comput. Geo. 2002; 6:433–452). The schemes a...
Article
A family of flux-continuous, control-volume distributed multi-point flux approximation schemes CVD (MPFA) have been developed for solving the general geometry-permeability tensor pressure equation on structured and unstructured grids (Comput. Geo. 1998; 2: 259–290, Comput. Geo. 2002; 6: 433–452). The locally conservative schemes are applicable to t...
Article
Elliptic and hyperbolic Darcy-flux approximations are presented. Families of flux-continuous finite-volume methods are investigated for the elliptic full-tensor pressure equation with general discontinuous coefficients. Full pressure continuity across control-volume interfaces is built into the methods leading to an important distinction from the e...
Article
Families of flux-continuous, locally conservative, finite-volume schemes have been developed for solving the general tensor pressure equation of petroleum reservoir simulation on structured and unstructured grids. The schemes are applicable to diagonal and full tensor pressure equation with generally discontinuous coefficients and remove the O(1) e...
Article
Full-text available
In Jabal Madmar in the Sultanate of Oman, Cretaceous epeiric carbonate platform architectures were characterized by employing a digital outcrop modelling workflow. A framework model for Natih Sequence I (Natih E member) was established, which embeds a meticulously studied platform-top incision and shoal complex. Outcrop-scale clinoforms are recogni...