About

Iskander Diyashev is a Professor of Practice in Petroleum Engineering at Texas A&M University. He holds a Ph.D. in Petroleum Engineering from Texas A&M University, obtained in 1998, and a Master of Science in Molecular and Chemical Physics from Moscow Institute of Physics and Technology, earned in 1990. His research interests include reservoir and production engineering, oil and gas reserves evaluation, well test design and analysis, and gas reservoir management. He is recognized as a Distinguished Member of the Society of Petroleum Engineers as of 2024. Dr. Diyashev is actively involved in the academic and professional community, contributing to the advancement of petroleum engineering education and research.

Research topics

• Computer Science
• Environmental science
• Political Science
• Physics
• Philosophy
• Business
• Petroleum engineering
• Thermodynamics
• Aesthetics
• Engineering
• Geology
• Process engineering
• Waste management
• Materials science

Selected publications

• Kaya Identity Defines Realistic Negative Emissions Targets for Large Nations and the World

  2024 · 3 citations

  1st authorCorresponding
  • Political Science
  • Computer Science
  • Political Science

  Abstract Our primary goal in this paper is to outline a methodology for developing realistic energy transition scenarios using existing and cost-effective technologies including negative emissions technologies. We discuss data sources, build projections of GDP, consumption of various energy resources, and energy transition costs. We discuss in detail the scenario for the USA, and briefly for China and India. We also review worldwide energy transition scenarios, and we address the question of what the expected CO2 emissions under a "business as usual" scenario, how much negative emissions would be required to achieve net zero, and what should be the rate of decarbonization of the energy system to stay within carbon budget associated with dT < 2°C. Energy systems have tremendous scale and inertia. Trends of systems development play out over several decades and in many cases growth rate of the emissions intensity of the energy system, or energy intensity of the economy can be confidently extrapolated assuming exponential growth or decline trends. This exponential approximation leads to a very simple yet beautiful result: Compound Annual Growth Rate CAGR of CO2 emissions = CAGR of Emissions intensity of the Energy System + CAGR of Energy Intensity of Economic Output + CAGR of Economic output per capita + CAGR of Population projection. Our secondary aim is education. We are applying this methodology to teach student engineers at Texas A&M University, as well as practicing engineers, about negative emissions targets and realistic transition strategies. We discuss how much energy per capita is necessary for sustaining our modern civilization and the linkage between energy use and economic growth.

  DOI

• Optimizing Gas-Flaring Solutions: Enabling Enhanced Oil Recovery and Power Generation

  2024

  Senior authorCorresponding
  • Computer Science
  • Petroleum engineering
  • Environmental science

  Abstract Produced gas is currently being flared into the atmosphere due to the lack of infrastructure to transport and sell the gas. We can re-inject this gas back into the formation, increasing the reservoir pressure and making the oil lighter thus enabling enhanced oil recovery. Additionally, the gas can be used to generate electricity during the highest energy demand times of the year to help stabilize grid usage. Prices would be monitored using real-time data provided by ERCOT to allow for rapid responses to changes in demand. There is a threefold benefit to this process: enhanced oil recovery, electricity generation, and a reduction in flared gas. Following prior work in the Wolfcamp formation (SPE 213002), we looked at four additional unconventional formations in Texas: Spraberry, Bone Spring, Austin Chalk, and Eagle Ford. Each formation had reservoir properties taken from published SPE literature to build a single well simulation model. Each model was tested using a cyclic gas injection schedule. The schedule consisted of three months producing, two months injecting, and one month of soaking. Three different gas injection rates were used to compare the additional incremental oil production for each case. The cases simulated were 1.5 MMscf/D, 3 MMscf/D, and 5 MMscf/D. Multiple economic evaluations were run to estimate the potential cashflow of the project in each formation. Assuming a gas engine with generator package costs $0.5 million, compressor $2 million, and a gearbox $0.3 million. The total cost of the project would be approximately $2.8 million. Assuming the current oil and gas prices of $80 and $2.75 respectively we estimate a return on investment of 2-3 years with additional oil production ranging from 30-80% based on the specific reservoir formation.

  DOI

Frequent coauthors

• Michael J. Economides

  University of Houston

  7 shared

• Ivan Miguel Arguello

  6 shared

• Luis Alberto Gracian

  6 shared

• Andrey Brovchuk

  5 shared

• A. S. Demarchos

  Hess (United States)

  4 shared

• D. Grant

  Schlumberger (British Virgin Islands)

  3 shared

• D. Oussoltsev

  3 shared

• E. Siebrits

  Schlumberger (United States)

  2 shared

Awards & honors

• Distinguished Member, Society of Petroleum Engineers – 2024

Similar researchers at Texas A&M University

• Stephen Safeh-131
• Raymond Carrollh-119
• Fuller Bazerh-114
• Renyi Zhangh-106
• Kim Dunbarh-103