# overview
I have research interests in wellbore heat transfer, transient transport processes, and wellbore/reservoir fluid flow. My current work plan is to develop heat transfer models for subsea completion in deep water settings. Modeling fluid temperature and pressure during shut-in, startup, or rate change is complicated by the coupled nature of these transport processes. We are using numerical and semi-analytical approaches for modeling transient flow of heat, mass, and momentum in wellbores. Future work in this area includes modeling wellbore transient heat transfer to convert wellhead pressure during water injection in unconventional formations. Analysis of warmback data to improve DTS visualization and

interpretation is another important future research topic. Many processes require an integrated approach to modeling fluid flow and pressure drop in both the reservoir and the wellbore. We are using such an approach to better understand the process of liquid

loading of gas wells and well blow out.

# keywords[]
4019 Resources Engineering And Extractive Metallurgy

# keywords[]
4007 Control Engineering, Mechatronics And Robotics

# keywords[]
Ascertaining Key Variables For Maximum Discharge

# keywords[]
4012 Fluid Mechanics And Thermal Engineering

# keywords[]
4012 Fluid Mechanics And Thermal Engineering

# keywords[]
4012 Fluid Mechanics And Thermal Engineering

# educationAndTraining[].organization.label
Dhaka University of Engineering & Technology - (Dhaka, Bangladesh)

# educationAndTraining[].organization.label
University of Waterloo - (Waterloo, Ontario, Canada)

# educationAndTraining[].organization.label
University of Waterloo - (Waterloo, Ontario, Canada)

# publications[].label
Simplified Wellbore-Flow Modeling in Gas/Condensate Systems

# publications[].label
APPLICATION OF MASS BALANCE IN PUMPING WELL ANALYSIS.

# publications[].label
PREFRACTURE TESTING IN TIGHT GAS RESERVOIRS.

# publications[].label
Mechanistic approach to understanding wellbore phase

# publications[].label
Assessing integrity of the gas-lift valves by analyzing annular-pressure-transient response

# publications[].label
Modeling wellbore transient fluid-temperature and -pressure during diagnostic fracture injection testing in unconventional reservoirs

# publications[].label
Design and interpretation of transient tests at well's inception

# publications[].label
Computing flow profiles and total flow rate with temperature surveys in gas wells

# publications[].label
Modelling Wellbore Transient Fluid Temperature and Pressure During Diagnostic Fracture-Injection Testing in Unconventional Reservoirs

# publications[].label
Predicting fluid temperature profiles in gas-lift wells

# publications[].label
A Robust Steady-State Model for Flowing-Fluid Temperature in Complex Wells

# publications[].label
Determining circulating fluid temperature in drilling, workover, and well control operations

# publications[].label
Analysis and applications of steam-water flow in wells

# publications[].label
A simple model for annular two-phase flow in wellbores

# publications[].label
EFFECT OF MASS FLUX AND SYSTEM PRESSURE ON TWO-PHASE FRICTION MULTIPLIER

# publications[].label
An analytic model for computing the countercurrent flow of heat in tubing and annulus system and its application: Jet pump

# publications[].label
STEAM/HOT WATER DRYING OF LOW RANK COALS.

# publications[].label
Performance of a two-phase gas/liquid flow model in vertical wells

# publications[].label
A simplified model for oil-water flow in vertical and deviated wellbores

# publications[].label
SIMULTANEOUS MEASUREMENT OF MASS FLUX AND STEAM QUALITY IN GEOTHERMAL WELLS USING HOMOGENEOUS AND SEPARATED FLOW MODELS

# publications[].label
Analytic Wellbore-Temperature Model for Transient Gas-Well Testing

# publications[].label
Transient wellbore/reservoir model for testing gas wells in high-temperature reservoirs, part I. Model development

# publications[].label
Interpreting Distributed-Temperature Measurements in Deepwater Gas-Well Testing: Estimation of Static and Dynamic Thermal Gradients and Flow Rates

# publications[].label
Void fraction in bubbly and slug flow in downward vertical and inclined systems

# publications[].label
Assessing integrity of gas-lift valves by analyzing annular pressure-transient response

# publications[].label
A Simple Model for Annular Two-Phase Flow in Wellbores

# publications[].label
Heat-Transfer Models for Mitigating Wellbore Solids Deposition

# publications[].label
What happens after the onset of liquid loading? - An insight from coupled well-reservoir simulation

# publications[].label
Modeling Changing Storage During a Shut-In Test

# publications[].label
USE OF FINITE PROPAGATION VELOCITY IN THE SOLUTION OF INTERFACE MASS TRANSFER PROBLEMS

# publications[].label
A Mechanistic Model for Computing Fluid Temperature Profiles in Gas-Lift Wells

# publications[].label
Transient analysis to locate and characterize plugs in gas wells

# publications[].label
PREFRACTURE TESTING IN TIGHT GAS RESERVOIRS.

# publications[].label
STUDY OF MULTIPHASE FLOW BEHAVIOR IN VERTICAL OIL WELLS: PART 1 - THEORETICAL TREATMENT.

# publications[].label
Wellbore Two-Phase Flow and Heat Transfer During Transient Testing

# publications[].label
Predicting thermal expansion pressure buildup in a deepwater oil well with an annulus partially filled with nitrogen

# publications[].label
Modeling changing storage during a shut-in test

# publications[].label
Simplified Wellbore Flow Modeling of Gas/Condensate Systems

# publications[].label
Transient fluid and heat flow modeling in coupled wellbore/reservoir systems

# publications[].label
Does gauge placement matter in downhole transient data acquisition?

# publications[].label
Real-time estimation of total flow rate and flow profiling in dts-lnstrumented wells

# publications[].label
Predicting Multiphase Flow Behavior in a Deviated Well

# publications[].label
LIGNITE-WATER SLURRY FLOW MEASUREMENT USING A VENTURIMETER.

# publications[].label
STUDY OF MULTIPHASE FLOW BEHAVIOR IN VERTICAL OIL WELLS: PART II - FIELD APPLICATION.

# publications[].label
Experimental Investigation of Volume Fraction in an Annulus Using Electrical Resistance Tomography

# publications[].label
Two-phase flow correlations as applied to pumping well testing

# publications[].label
TWO-PHASE FLOW HEAT TRANSFER IN A HORIZONTAL STEAM WATER SYSTEM

# publications[].label
ANALYTICAL MODELS TO ESTIMATE TEMPERATURE PROFILES DURING DRILLING AND SHUT-IN IN DEEPWATER ENVIRONMENT

# publications[].label
RHEOLOGICAL BEHAVIOUR OF LOW RANK COAL-WATER SLURRIES.

# publications[].label
An Approach to Mitigating Wellbore Solids Deposition

# publications[].label
Determining Bottomhole Pressures in Pumping Wells

# publications[].label
Using high resolution temperature data in appraisal wells to identify the reservoir conditions that can lead to condensate blockage

# publications[].label
Modeling Wellbore Dynamics during Oil Well Blowout

# publications[].label
Predicting Multiphase Flow Behavior in a Deviated Well

# publications[].label
A pragmatic approach to understanding liquid loading in gas wells

# publications[].label
Determining circulating fluid temperature in drilling, workover, and well-control operations

# publications[].label
NEW TECHNIQUES FOR OBTAINING PRESSURE BUILDUP DATA IN OILWELLS.

# publications[].label
Two-Phase Gas/Liquid Flow Rate Estimation During Closed-Chamber Testing

# publications[].label
Predicting the annular pressure behavior during water injection in offshore wells with a transient, multiphysics model

# publications[].label
Fluid Flow and Heat Transfer in Wellbores

# publications[].label
LOW TEMPERATURE OXIDATION OF LOW RANK COALS.

# publications[].label
APPLICATION OF MATERIAL BALANCE IN PUMPING WELL ANALYSIS.

# publications[].label
A wellbore/reservoir simulator for testing gas wells in high-temperature reservoirs

# publications[].label
Countercurrent bubble and slug flows in a vertical system

# publications[].label
LOW TEMPERATURE OXIDATION OF LOW RANK COALS

# publications[].label
VOID FRACTION IN BUBBLY, SLUG AND CHURN FLOW IN VERTICAL TWO-PHASE UP-FLOW

# publications[].label
Development and application of a wellbore/reservoir simulator for testing oil wells

# publications[].label
Wellbore heat-transfer modeling and applications

# publications[].label
Static reservoir temperature determination from transient data after mud circulation

# publications[].label
Fluid circulating temperature model for workover operations

# publications[].label
Transient fluid and heat flow modeling in coupled wellbore/reservoir systems

# publications[].label
Numerical Study on the Impact of Spiral Tortuous Hole on Cuttings Removal in Horizontal Wells

# publications[].label
ESTIMATING ZONAL FLOW CONTRIBUTIONS IN DEEP WATER ASSETS FROM PRESSURE AND TEMPERATURE DATA

# publications[].label
Analytical modelling of temperature profiles during deepwater drilling operation

# publications[].label
Heat transfer during two-phase flow in wellbores. Part I. Formation temperature

# publications[].label
Two-phase flow in vertical and inclined annuli

# publications[].label
Sustaining Production by Managing Annular-Pressure Buildup

# publications[].label
Aspects of wellbore heat transfer during two-phase flow

# publications[].label
Development and Application of a Wellbore/Reservoir Simulator for Testing Oil Wells

# publications[].label
BOILING TWO-PHASE FLOW HEAT TRANSFER IN A HORIZONTAL BEND

# publications[].label
A Simplified Model for Oil/Water Flow in Vertical and Deviated Wellbores

# publications[].label
STEAM/HOT WATER DRYING OF LOW RANK COALS.

# publications[].label
Early gas kick detection in vertical wells via transient multiphase flow modelling: A review

# publications[].label
A robust steady-state model for flowing-fluid temperature in complex wells

# publications[].label
TRANSIENT ANALYSIS OF ACOUSTICALLY DERIVED PRESSURE AND FLOW RATE DATA.

# publications[].label
Void fraction in bubbly and slug flow in downward two-phase flow in vertical and inclined wellbores

# publications[].label
Simplified wellbore flow modeling in gas-condensate systems

# publications[].label
Flow rate and total discharge estimations in gas-well blowouts

# publications[].label
Sustained casing pressure modeling and well integrity

# publications[].label
Transient Analysis of Acoustically Derived Pressure and Rate Data

# publications[].label
Establishing geothermal gradient using a new static temperature analysis method

# publications[].label
Pressure Drop and Flow Rate Measurement in Lignite-Water Slurry Flow

# publications[].label
Flow-Rate Estimation From Wellhead-Pressure and Temperature Data

# publications[].label
A comparison of oil-water slip velocity models used for production log interpretation, by A.D. Hill Comments

# publications[].label
Flow rate estimation from wellhead pressure and temperature data

# publications[].label
Clean-up period flow rate estimation from Multi Discrete Temperature Sensor data

# publications[].label
New model for two-phase oil/water flow: production log interpretation and tubular calculations

# publications[].label
Combined production logging, transient testing, and well-performance analysis

# publications[].label
Modeling two-phase fluid and heat flows in geothermal wells

# publications[].label
The use of combined static and dynamic material-balance methods in gas reservoirs

# publications[].label
DETERMINING BOTTOMHOLE PRESSURES IN PUMPING WELLS.

# publications[].label
PREDICTING LIQUID GRADIENT IN A PUMPING WELL ANNULUS.

# publications[].label
Experimental investigation of multiphase flow behavior in drilling annuli using high speed visualization technique

# publications[].label
The Use of Combined Static- and Dynamic-Material-Balance Methods With Real-Time Surveillance Data in Volumetric Gas Reservoirs

# publications[].label
Rheology of low-rank coal-water slurries at both high and low shear rates

# publications[].label
Transient fluid and heat flow modeling in coupled wellbore/reservoir systems

# publications[].label
A mechanistic model for circulating fluid temperature

# publications[].label
MODIFICATIONS OF JAMES CORRELATION FOR PREDICTING MASS FLUX AND STEAM QUALITY IN GEOTHERMAL WELLS CONTAINING DISSOLVED GASES AND SOLIDS

# publications[].label
A new model for two-phase oil/water flow: production log interpretation and tubular calculations

# publications[].label
Simplified two-phase flow modeling in wellbores

# publications[].label
A Study of Multiphase Flow Behavior in Vertical Wells

# publications[].label
Does Gauge Placement Matter in Downhole Transient-Data Acquisition?

# publications[].label
A Mechanistic Approach to Understanding Wellbore Phase Redistribution

# publications[].label
SOLVING THE RECTANGULAR HYPERBOLA EQUATION FOR PRESSURE BUILDUP ANALYSIS.

# publications[].label
A basic approach to wellbore two-phase flow modeling

# publications[].label
NEW TECHNIQUE FOR OBTAINING PRESSURE BUILDUP DATA IN OILWELLS.

# publications[].label
Interpretation of cleanup data in gas-well testing from derived rates

# publications[].label
Analytic Wellbore Temperature Model for Transient Gas-Well Testing

# publications[].label
Transient wellbore/reservoir model for testing gas wells in high-temperature reservoirs, part II. Field application

# publications[].label
Transient flowing-fluid temperature modeling in oil reservoirs for flow associated with large drawdowns

# publications[].label
Inherently safer sustained casing pressure testing for well integrity evaluation

# publications[].label
PREDICTING LIQUID GRADIENT IN A PUMPING-WELL ANNULUS.

# publications[].label
New model for two-phase oil/water flow. Production log interpretation and tubular calculations

# publications[].label
Flow rate and total discharge estimations in gas-well blowouts

# publications[].label
Dimensionless data-driven model for optimizing hole cleaning efficiency in daily drilling operations

# publications[].label
Techniques to improve flow profiling using distributed temperature sensing

# publications[].label
Determination of static reservoir temperature from transient data following mud circulation

# publications[].label
Two-Phase Flow Correlations as Applied to Pumping Well Testing

# publications[].label
RHEOLOGICAL BEHAVIOR OF LOW-RANK COAL-WATER SLURRIES

# publications[].label
Modeling two-phase fluid and heat flows in geothermal wells

# researcherOn[].label
Scaling of Multiphase Flow Pressure Loss and Multiphase Flow Metering in Annuli

# researcherOn[].label
Operation and Maintenance of the Ocean Energy Safety Institute (OESI)

# researcherOn[].awardedBy.label
United States Department of the Interior - (Washington D.C., District of Columbia, United States)

# streetAddress
Texas A&M University; Petroleum Engineering; 3116 TAMU

# inTheNews[].label
JPT Sensor Array Enables Accurate Profiling of Produced Fluids During Drillstem Tests

# etdChairOf[].label
Rocha-Valadez, Tony (2014-12). Well Integrity Diagnostics for Sustained Casing Pressure and Faulty Gas-Lift Valve Based on Pressure Transient Modeling. Doctoral Dissertation.

# etdChairOf[].label
Chevarunotai, Natasha (2014-12). Analytical Models for Flowing-Fluid Temperature Distribution in Single-Phase Oil Reservoirs Accounting for Joule-Thomson Effect. Master's Thesis.

# etdChairOf[].label
Ahmed, Asif (2018-08). An Analytical Approach to Utilize Temperature and Pressure Profile of a Multi-zone Well in Estimating Zonal Flow Contributions. Master's Thesis.

# etdChairOf[].label
Zubairy, Raheel (2014-05). Gas Kick Mechanistic Model. Master's Thesis.

# etdChairOf[].label
Lumban Gaol, Ardhi Hakim (2016-08). Modeling Two-Phase Pipe Flow in Liquid Loading Gas Wells Using The Concept of Characteristic Velocity. Doctoral Dissertation.

# etdChairOf[].label
Riza, Muhammad Feldy (2013-12). Reservoir-Wellbore Coupled Simulation of Liquid Loaded Gas Well Performance. Master's Thesis.

# etdChairOf[].label
Islam, Raka (2017-05). Analytical Model for Fluid Temperature Change During Expansion in the Reservoir. Master's Thesis.

# etdChairOf[].label
Grassi, Esteban A (2015-08). Analysis of Babu and Odeh's Model. Master's Thesis.

# etdChairOf[].label
Hashmi, Gibran Mushtaq (2014-08). Heat Transfer Modeling and Use of Distributed Temperature Measurements to Predict Rate. Master's Thesis.

# etdChairOf[].label
Ali, Muhammad (2014-05). Transient Temperature Modeling For Wellbore Fluid Under Static and Dynamic Conditions. Master's Thesis.

# etdChairOf[].label
Sohel, Rayhana Nayema (2017-05). Estimating Zonal Flow Contributions in Deep Water Assets using Temperature and Pressure Data. Master's Thesis.

# etdChairOf[].label
Liu, Ruochen (2016-05). Modeling of Uncontrolled Fluid Flow in Wellbore and its Prevention. Doctoral Dissertation.