Academic literature on the topic 'Strictly positive secure capacity'

In the last years, the specialists in sport area are very interested by the biomechanic tests in athletics. In this paper we are presented the Ergosim device, wich is able to analyse the movements at the certain speed, from each angle, in every direction, with ideal amplitude. Through the content of this research issues we are trying to introduce the modern techniques used to increase efficiency of triple jumpers training by optimizing the training process. Ergosim can be approached at any time and is even indicated by the junior age, making a gradual transition from specific means for children and juniors to the means for senior, in the meaning of the harmonious development of muscle groups and of the lack pressure on the spine and joints, which are very much required in working with dumbbell. The exercises can be performed with great amplitude, depending on the strength and the speed of the athlet, laying the basis for improving technique with an optimal speed. Ensuring superior techniques can be achieved by practicing as an optimal model, strictly individualized on Ergosim. Thus, it can be develop a very good proprioceptive memory, which will result in a relaxed rhythm and an optimal ratio of jumping phases, with positive effects of performance at major competitions. Ergosim is assisted by computer, adjusting the speed of execution desired, number of repetitions and brake components. The program has capacity for analysis and synthesis, allowing active recording time, the active work, the mechanical work, the active power, the active speed, guided by computer required speed.

Abstract Petroleum Development Oman LLC (PDO) is Oman's premier oil producer and operates several fields at "A". "A" East and "A" West are located on the eastern flank of the South Oman Salt Basin. As "A" Thermal fields contain heavy oil, PDO plans to significantly increase oil recovery by increasing the steam injection which is having high energy intensity. The objective of this paper is to demonstrate the improvement in the Solar Steam Production Facility Thermal Efficiency (TE) to maximize the value of producing steam and saving higher GHG emissions. Solar Steam facility is a steam production station which absorbs sun rays to produce steam from water further injected into the reservoir to produce the oil in "A". Solar steam facility is designed to produce 1980 T/d with 12 blocks. However, the maximum potential has not been met. In This project, different approaches and process had been used such as lean practice including process mapping, root cause analysis, fishbone. A lean approach known as Practical problem solving (PPS) was followed. This is a structured framework to understand the causes of a sudden behavior change in a defined steps within a process. The analysis included outlining the "SIPOC", i.e. defining the Suppliers, Inputs, Process, Outputs, Customers of this matter, a Detailed Process Mapping, fishbone analysis, the 5-whys, etc. The PPS findings were piloted to verify the outcomes. This paper has led to significant benefits and maximizing its potential. These benefits are outlined below: Maintaining positive pressure inside the glass house will eliminate dust ingress to improve mirror reflectivity and increase steam production. Providing options/ provisions to inject steam in maximum number of steam injectors will result steam units to produce to its maximum capacity. Steam Deferments savings of around 200k Ton annually is saved which resulted to secure around 10% of the field oil production. In addition, a saving of 35.5k tons of CO2e/yr GHG emissions is seen part of this improvements. By improvement this process, it will help to contribute to organization goals in term of production increase, deferment reduction, GHG reduction and cost reduction.

Abstract Secure storage of carbon dioxide in underground reservoirs has been an increasingly interesting topic for the researches in the recent decade. The literature includes great works covering the idea of storing CO2 in depleted oil and gas fields or deep saline aquifer. In this study, long-term adsorption of CO2 and hydrocarbon gases is discussed as another opportunity to permanently store greenhouse gases and reduce the amount of the carbon dioxide that enters atmosphere. The simplified local-density (SLD) theory was used for matching the experimental data and providing predictions of high-pressure supercritical adsorption isotherms of CO2 and hydrocarbon gases. The SLD model is able to capture the contributions from the fluid-fluid and fluid-solid interactions and, despite the typical assumption of uniform bulk phase density, the model plots the variable density profile of the fluids in nanopore. An extensive set of adsorption measurements available in the literature is used in this evaluation. The slit and cylindrical pore geometry are assessed and the effect of the pressure, temperature, pore size and fluid composition is also discussed in detail. The results show that the SLD-PR model can predict absolute adsorption of the CO2 and hydrocarbon gases within the experimental uncertainty range. For heavier components (C3+), the model illustrates a thicker adsorbed wall close to the pore surface, the adsorption is enhanced while the pressure is increased to a certain point. This observation is in line with the pore-fluid interaction energy which shows a positive trend in terms of molecular size and pressure. In addition, it is concluded that the pore size lower than 2 nm show an exponentially high interest in adsorbing the gas molecules at supercritical conditions. Finally, the results recommend that the simplified local density model gives promising estimates for converting excess adsorption data to absolute adsorption data and calculating the storage capacity of the reservoir rock. Using the outcomes of this study, millions of tons of carbon dioxide can be safely stored in carefully selected high-organic content rocks. The proposed method can also have some applications in predicting the hydrocarbon-in-place and production behavior in shale reservoirs with high organic carbon content.