منابع مشابه
Well, well, well water.
Although the multiplication of bacteriophages (phages) has a substantial impact on the biosphere, comparatively little is known about how the external environment affects phage production. Here we report that sub-lethal concentrations of certain antibiotics can substantially stimulate the host bacterial cell’s production of some virulent phage. For example, a low dosage of cefotaxime, a cephalo...
متن کاملsimulation and experimental studies for prediction mineral scale formation in oil field during mixing of injection and formation water
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
A Dynamic Simulation of Annular Multiphase Flow during Deep-water Horizontal Well Drilling and the Analysis of Influential Factors
A gas kick simulation model for deep-water horizontal well with diesel-based drilling fluid is presented in this paper. This model is mainly based on the mass, momentum, and energy conservation equations. The unique aspect of this model is the fluid-gas coupling and the change of mud properties after the gas influx from the formation. The simulation results show that the gas in an annulus disso...
متن کاملAdoptive Control of Well Drilling Systems
Control of well drilling operations poses a challenging issue to be tackled. The loss of well control could lead to the occurrence of blowout as a severe threat, involving the risk of human lives and environmental and economic consequences. Conventional proportional-integral (PI) controller is a common practice in the well control operation. The small existing margin between pore pressure and f...
متن کاملOcean Ambient Noise Studies for Shallow and Deep Water Environments
Research over the past several years has shown that breaking wave noise can be used for remote sensing of the environment. There are several advantages to passive remote sensing including simple measurement requirements and minimal environmental impact. While ocean ambient noise has been studied for decades, much of the interest has been on determining the impact of noise on sonar performance. ...
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ژورنال
عنوان ژورنال: Journal of the Japanese Association for Petroleum Technology
سال: 1993
ISSN: 1881-4131,0370-9868
DOI: 10.3720/japt.58.379