In many ways, the use of a drilling cost equation is useful in making recommendations to estimate the cost of the well. Cost estimates at a particular location are used to determine whether the wells can be drilled economically or not. Over the period 2009-2011, the cost of drilling in a...
aClipping and filtering is a well-known technique used at the transmitter side of Orthogonal Frequency Division Multiplexing (OFDM) systems to reduce the Peak to Average Power Ratio (PAPR). In this paper, 截去和过滤是一个知名的技术用于在正交频率分割的多元化(OFDM)系统的发射机边使峰顶降低到平均...
This restricts projects in terms of location and it also overlooks the additional engineering benefits drilling can bring to monopile foundation design e.g. reduced foundation material and better fatigue design life.By comparing the lessons learned of three milestone overwater drilling projects; methods...
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Laboratory tests as well as field tests have shown that if the mud density is far greater then the pore pressure of the formation the rate of penetration is lowered, and there is an increased chance of sticking of th 如果泥密度太高, ne可能也降低钻子的渗透的率。 实验室试验以及实地试验表示...
1) drilling cost 钻井成本1. Application of gray theory in oil and drilling cost estimation; 灰色理论在油气钻井成本预测中的应用2. In order to reduce drilling cost and economical and efficiently exploit peripheral virgin reserves in the Daqing Oilfield, test researches on surface-casing drilling ...
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Deep drilling of borewells to hundreds of meters – depth is increasingly frequent for water exploration in fractured crystalline rocks. At the same time, many studies provide evidence that hard-rocks areas are characterized by a shallow higher-permeability zone (''active'' zone) that overlies a...