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This 1-day course is an introduction to design and optimization of Flow-Control-Devices (FCDs) in horizontal wells in Thermal Recovery Operations. The interaction between reservoir and FCD, and design charts created to evaluate the response of the FCD are discussed. Liquid Pool modeling: a method to calculate the liquid pool level from temperature profile in observation wells will be discussed, and an algebraic equation for liquid pool depletion based on wellbore drawdown, subcool and emulsion productivity is generated and discussed in practical examples. A minimum subcool concept (or target reservoir subcool) is discussed and calculated as a function of skin and pressure draw-down. Liner-Deployed FCDs modeling: The formulation and physics govern restriction-type (Nozzle and Orifice), frictional-type and several other types of FCDs are presented.
From the field, to the customer, through engineering, CAM, and manufacturing then back to the field, each drilling bit's life is unique. Underbalanced coiled tubing drilling has continually advanced since the first trials in the 1990s but remains a relatively niche drilling technology. With UBCTD projects set to start in many countries next year, this technology may be seeing a turning point. Considering most of the rigs deal with human-machine interface systems, the role of human factors is at the heart of any successful operation. Eye-tracking technology can be useful in real-time operation centers where ocular movement data can improve the professionals’ performance.
Mitigation of stress shadowing could significantly enhance the impact of hydraulic fracturing treatments, increasing stimulated reservoir volume and leading to higher production of hydrocarbons. More than a decade ago, perforation cluster spacing was designed up to 700 ft in Barnett and Bakken plays. Today, the spacing is as close as 15 ft apart in Eagle Ford and DJ Basin and operators are optimizing fracture spacing for achieving higher initial production rates.
A study by a real-time monitoring company showed that many coiled-tubing strings are retired with a lot of life left in them. It suggested companies could lower costs by using pipe for a longer time and could benefit from multicompany studies showing how their decisions compare to the competition. A coiled-tubing selective perforating and activation system that transmits critical downhole data and measurements in real time is enabling well interventions that previously could not have been executed. This year’s papers provide examples of efficiencies that have been brought about in coiled-tubing operations. The papers demonstrate how problem-solving techniques have been applied to improve such aspects as on-site processes, fit-for-purpose equipment, and more-effective treatment placement.
Reducing the complexity and controlling the cost of major offshore projects are together one of the biggest challenges facing the oil and gas industry. Disruptive technological advances may produce significant improvements in completion techniques. As it has since 1969, the world came to OTC to make critical decisions, share ideas, and develop business partnerships to meet global energy demands. To survive in the current low-price environment, exploration and production (E&P) companies must better handle the complexities inherent in their projects through practices that promote capital effectiveness and collaboration.
Because of inherent complexities, understanding the characteristics of perforations in downhole environments is a significant challenge. Perforation-flow laboratories have been used to provide insight into cleanup and productivity mechanisms around perforation tunnels. Erosion caused by fine solid particles presents one of the greatest threats to oil and gas flow assurance, consequently affecting material selection and wall-thickness design.
A study by a real-time monitoring company showed that many coiled-tubing strings are retired with a lot of life left in them. It suggested companies could lower costs by using pipe for a longer time and could benefit from multicompany studies showing how their decisions compare to the competition. This paper describes the integrated approach taken by Petronas to reinforce effective management of fatigue. The installation of flowlines in ever-deeper and -more-remote areas requires specific technologies for precommissioning. Coiled tubing can be a solution, but long durations may affect tubing stress and fatigue.