Most of the available literature on optimal well placement has employed numerical simulators in a black box manner linked to an external search engine. In this work, we formulate the contents of that box inside a mixed integer nonlinear programming model for optimal well placement. We provide a unified model that integrates the subsurface, wells, and surface levels of an upstream production pro...

Abstract Tight oil reservoirs have poor physical properties, and the problems including rapid rate decline low recovery degree are quite common after volume fracturing. To obtain a general understanding of tight reservoir production improvement by CO 2 huff ‘n’ puff, high-pressure properties typical samples measured. Combining parameters, characteristics developed puff numerically studied on ba...

cheese has high nutritional value in human health although is naturally poor in essential fatty acids. essential fatty acids revealed crucial roles in nutritional diet and have been suggested as disease prevention agent. protulaca oleracea (purslane) has considerable amounts of omega 3, 6 and 9 fatty acids as well as magnesium, potassium and vitamin c. the aim of this study is production and ch...

Expansion of oil palm plantations has led to extensive wildlife habitat conversion in Southeast Asia [1]. This expansion is driven by a global demand for palm oil for products ranging from foods to detergents [2], and more recently for biofuels [3]. The negative impacts of oil palm development on biodiversity [1, 4, 5], and on orangutans (Pongo spp.) in particular, have been well documented [6,...

productivity of an oil well is an important parameter in any oil field development. low production rate of the wells, impose more production wells drilling which directly jeopardizes the economical feasibility of the project. oil production rate in some of the wells is very low due to low permeability of the reservoir rock. several practice like hydraulic fracturing and acid fracturing is very ...