Most wells dug for water, oil, natural gas, information, or other subsurface purposes are vertical wells, meaning they are bored straight down into the ground. Drilling at an angle different than perpendicular, on the other hand, can collect information, hit goals, and stimulate reservoirs in ways that a vertical well cannot. In these circumstances, the ability to precisely guide the well in directions and angles that deviate from the upright is quite helpful.
Directional and horizontal drilling has been used to reach targets beneath adjacent lands, reduce the footprint of gas field development, extend the “pay zone” in a well, intentionally intersect fractures, build relief wells, and install utility service beneath lands where excavation is impossible or prohibitively expensive.
What Is Hydraulic Fracturing?
Hydraulic fracturing, often known as “fracking,” is an oil and gas well development technique that generally includes pumping high-pressure water, sand, and chemicals into a bedrock formation via the well. The goal of this process is to generate new fractures in the rock and enhance the size, extent, and connectedness of existing fractures. Hydraulic fracturing is a healthy stimulation process that enhances oil and gas flow from petroleum-bearing rock formations in low-permeability rocks such as tight sandstone, shale, and sure coal beds. Improved permeability in subsurface geothermal reservoirs is achieved using a similar approach.
What Are EOR Projects?
EOR is a type of production recovery technology that seeks to recover oil that would not be recovered using primary or secondary recovery methods because the oil has ceased flowing or the water content of the oil reservoir has increased. EOR is extensively used nowadays because it may improve oil output while avoiding exploration hazards. EOR is a method that was developed primarily in the United States throughout the 1970s. TOYO has been involved in oil field development using this EOR method since the 1980s. Most of the remaining crude oil is in oil reservoirs with limited mobility, and fluid that decreases viscosity is often injected into the oil reservoir to retrieve the remaining crude oil.
Heat, gas, chemical (surfactants), or polymer fluids are employed, and assessments of dynamic reservoir behavior and operating data are required when selecting the liquid to be injected and the recovery technique. As a result, experience in establishing plans for comparable projects and understanding the characteristics and subterranean behavior of the fluid to be injected is required to construct development planning utilizing EOR methodologies.
With ever-depleting reserves in recognized oil accumulations and the introduction of Carbon Dioxide (CO2) Capture and Storage demands and technology, the hydrocarbon E&P sector is paying increasing attention to Residual Oil Zones (ROZs). ROZ can be a viable answer to both future challenges as a significant new oil supply and a means of decreasing carbon emissions. ROZs are defined as a thick pile of low-quality reservoir rock beneath traditional oil-water contact, with about residual oil saturation’s of primarily irreducible oil resulting from natural flushing of the reservoir due to buoying forces and aquifer action in the geological past in earlier oil-filled parts of the pool. Because of the nature of the fluid and reservoir rock, the production of oil from ROZs from such reservoirs is technically and economically viable with improved oil recovery techniques, primarily through missile CO2 flooding/injection in the zone. The depositional and tectonic regimes are examined to establish the presence of and independently assess ROZ potential. According to the current understanding, ROZs could be formed by hydrodynamic actions associated with tectonic regimes.
We have extensive experience in advanced, multi-disciplinary EOR studies, and via our consulting services, we can provide you with a complete understanding of your reservoir and advise on the appropriate approach, tailoring it to your reservoir’s particular circumstances. With our knowledge and advice, you can decrease the risks and uncertainties associated with pilot and full-field EOR project designs. For all of your EOR projects, you can rely on us to provide the most significant level of experience, dependable analytical findings, and engineering consulting services. Because each reservoir and EOR project is unique, we maintain a comprehensive spectrum of interdisciplinary testing facilities. We maximize the economics of your reservoir by employing cutting-edge laboratory technology and techniques to characterize all aspects of your EOR project quickly and effectively. We’ve worked on EOR projects all around the world.
We have project execution experience with carbon dioxide injection and investigations on CO2 driving techniques. In addition, we offer engineering services that provide the best plans for recovering crude oil using CO2 drive methods, backed up by extensive experience and knowledge backed up by our urea synthesis process technology, knowledge on the behavior (physical properties) of carbon dioxide gas under high pressure, and the whole experience with CO2 drive widely used around the world.
