Providing Solutions to Your Subsurface Engineering and Geosciences Challenges

Research | Consulting | Training

Providing Solutions to Your Subsurface Engineering and Geosciences Challenges

Research | Consulting | Training

Providing Solutions to Your Subsurface Engineering and Geosciences Challenges

Research | Consulting | Training

Providing Solutions to Your Subsurface Engineering and Geosciences Challenges

Research | Consulting | Training

Welcome to Petrolern

Unlocking Locked Reserves – Drilling Un-drillables – Predicting Unpredictables

Services We Provide


PETROLERN Consulting offers a wide range of consulting services in geosciences, subsurface engineering, and reservoir engineering subjects for the oil and gas industry, geothermal energy and carbon storage. Our mission is to transfer the knowledge to our clients while conducting consulting projects. We work closely with our clients’ teams to ensure that the scope of work and their requirements are fully understood.


PETROLERN Research is dedicated to providing innovative solution to our clients’ challenges through top-notch researches. Our R&D team consists of experienced experts and young talented professionals working together to assure best quality results. We have developed several novel technologies and methodologies to help our clients achieve their objective with minimum cost and risk.


PETROLERN’s training designs and delivers practical courses on a wide range of topics related to the energy industry. We conduct public and tailored, in-house courses ranging from one to several days based on our clients’ specific needs using exceptional, internationally recognized instructors. PETROLERN’s goal is to transfer the most current knowledge to the clients.

About Us

PETROLERN LLC is an international research, consulting and training company, providing the energy industry with high-quality services as well as practical and specialized training courses in different subsurface engineering and geosciences disciplines. Our policy at PETROLERN is to provide high-quality services while openly discussing uncertainties in the results with our clients. We pursue challenging projects where we can apply our innovative solutions and problem-solving skills. Our well-reputed and experienced team are ready to provide solutions to your challenging problems.

Unconventional Resources

We pay special attention to the optimized development of unconventional resources, including shale gas, shale oil, CBM, heavy oil and tight gas. These energy sources are fast-growing markets and have been recognized as the forefront of the future energy worldwide. It is imperative that we harness the best available technologies for efficient recovery of these resources. In PETROLERN, we believe that successful production from unconventional resources requires unconventional thinking.

CO2 Sequestration

Long-term CO2 storage in geologic formations is an effective response to growing concerns about climate change resulting from increased carbon dioxide concentrations in the atmosphere. The key to the effective injection of CO2 into the subsurface formations, including depleted oil and gas reservoirs for enhanced oil recovery, is a detailed characterization of the formation properties, in-situ stresses, natural fractures network, seal capacity of cap rock and formation pressure, in addition to Monitoring, Verification, and Accounting (MVA) to confirm permanent storage of CO2. This is our expertise at PETROLERN.

Deep Water and HPHT Fields

Drilling and production operations in deep-water and HPHT fields are the most challenging operations in the oil and gas industry. Due to a significantly narrow mud weight window in deep water and HPHT environments, safe and optimum drilling, completion and production require advanced knowledge and cutting-edge technologies. PETROLERN’s experienced and creative team are ready to provide solutions to your problems in these challenging environments.

Geothermal Energy

To maximize sustainability of geothermal reservoirs, especially Enhanced Geothermal System (EGS), and ensure safe and cost-effective subsurface operations such as drilling, completion, stimulation and injection, knowledge of subsurface state of stress, rock properties, natural fractures and temperature is essential. We strive to produce the most reliable estimations of these parameters by means of advanced analytical and numerical models in combination with signal processing and machine learning techniques. In PETROLERN, we focus on clean energy as much as fossil energy.

What Our Clients Say About Us

{“The course was very well taught, and I found it provided a good overview of the geomechanics field. The instructor was a great catalyst in starting discussions which I think is a great way to learn. I’ll definitely keep an eye on the future courses that Petrolern will be offering.”
Trevor Oar
Geomechanics Specialist at Weatherford, Calgary, Canada
{“The unconventional geomechanics course covered a lot of useful contents for the development of unconventional resources. Dr. Soroush is very knowledgeable in the field of petroleum related rock Mechanics, and he has excellent training skills.”
Jun Ge
Research Engineer at EERC, Grand Forks, North Dakota
{“The course was very informative, well organized and offering an abundance of practical value and take-home tips. The instructor had a close interaction with attendees, willing to fluidly answer questions and encourage class participation. I would highly recommend Petrolern’s courses for both petroleum engineers and geoscientists.”
Moosa Rabiei
Reservoir Engineer at Nexen, Calgary, Canada
{“The geomechanics course was well presented and offered a very good understanding of the topic. I would recommend this course to all subsurface and operations people who consider geomechanics as part of their field development plan.”
Billy Hadisubrata
Senior Reservoir Engineer at Drillsearch Energy, Sydney, Australia
{“Very applicable and in-depth training with extremely useful course materials. It was taught by an exceptional instructor providing support long after the course was completed.”
Jeff Read
Geologist at Husky Energy, Calgary, Canada
{“The course provides an excellent explanation why geomechanics is an essential component for production of unconventional resources. Class organization walked through all the steps necessary to perform wellbore stability analysis and provides a fundamental understanding of geomechanical problems encountered and how they can be resolved. The instructor encouraged class interaction and effectively engaged participation.”
Kerry DeVries
Vice President, Mining and Energy at RESPEC Engineering, Rapid City, South Dakota
{“My husband, Nick Barton, and I participated in the Shale Gas course given by Dr Souroush in London. It was encouraging to hear about the importance of shear and other joint properties and how some rock mechanics principles are linked to the production of shale gas. The course was very rich, bringing update information about shale gas exploitation, teaching us about the fundamentals of fracking and some of the methods that could be used in the processes of extraction. Hamed was an excellent Instructor and the course was really good.
Eda Quadros
Diretora Técnica - BGTech Eng. de Solos e Rochas, São Paulo, Brazil
{Petrolern LLC conducted a comprehensive study for development of the Bowland Shale Gas. Their thorough and high-quality technical work provided solutions to the drilling problems we were facing before and resulted in successful drilling of the UK’s first horizontal shale gas well. Petrolern team had a close interaction with our team in Cuadrilla over the whole project duration and afterward to ensure that the scope of work was understood, and the results were properly applied. They openly discussed their workflows and methodologies with us to make sure the basic knowledge required to efficiently use the results were transferred to Cuadrilla. Petrolern’s work ethic was the reason for achieving satisfactory and fit-to-purpose results. and made us feel confident in referring Petrolern to other potential clients for an enjoyable experience.
Huw Clarke
Appraisal Manager & Senior Geoscientist at Cuadrilla Resources, London, UK