نتایج جستجو برای: downhole method

تعداد نتایج: 1630639  

Journal: :Petroleum Exploration and Development 2017

2006
Anamika Gupta

Feasibility of drilling with supercritical carbon dioxide to serve the needs of deep underbalanced drilling operations has been analyzed. A case study involving underbalanced drilling to access a depleted gas reservoir is used to illustrate the need for such a research. For this well, nitrogen was initially considered as the drilling fluid. Dry nitrogen, due to its low density, was unable to ge...

2012
Gong Hua

The selection criteria for multiphase boosting options remain somewhat subjective and are frequently influenced by the vendors’ data, which may mask potential limitations of this emerging technology. Existing literature on multiphase pumping tends to focus on a certain pump type for a specific field application, but does not provide more-generalized criteria for the selection of multiphase boos...

Water injection strings in highly deviated wells are subjected to complex forces on the string bore. In this work, a mechanical model is developed for these forces and for those on downhole tools. On the basis of this model, and taking account of the characteristics of the string in different working conditions, a temperature field model and a pressure field model are introduced, and a statical...

Journal: :Processes 2023

Downhole vibrations caused by rock breaking when drilling through pebbled sandstone formations negatively affect the rate of penetration (ROP) and safety downhole tools. Therefore, it is great significance to study cutting characteristics find a method reducing formations. Based on DEM (discrete element method), simulation model considering random filling high-strength gravels was established u...

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