Gas flowback model is different from water due to the pressure-dependent gas properties and gas influx from matrix. Based on the conceptual model depicted in Fig. 1, the gas-phase material balance equation for an infinitesimal element in the fracture is given by:(11)qgfρgf|x+dx−qgfρgf...
From a physical perspective, the initial 1/t decline in both problems arises because at early times production acts as if gas pressure is diffusing within an unbounded region towards an absorbing boundary (“infinite acting regime”). The boundary for the interior problem is the set of hydrofrac...
aguage pressure guage pressure[translate] a多少的胶带宽度我们的? How many adhesive tape width we?[translate] a捧红 Holds red[translate] a我们这边刚起来 Us just got up[translate] aresults from the physical attraction of gas or vapor molecules to a surface. 结果从气体或蒸气分子的体引力对表面...
Both the retrieved ground pressure and the surface pressure are part of the NO2 data product. The retrieved effective ground pressure is derived using the O2-A absorption band in the TROPOMI spectrum and the surface pressure comes from the analyzed 3-hourly meteorological fields from the European...
Unless your car drives on alternative fuel (more on these later), you’ll typically see three types of gas at your local gas station. They're distinguished by their octane rating, which serves as a measure of a fuel’s stability. The higher the octane rating, the greater the pressure the...
in which ∆P=Pin−Poutis the pressure drop along the nanochannel with a cross-section areaA,Rthe gas constant,Tthe temperature, andMthe molar mass of the gas molecule. Equation (1) is obtained based on the assumption of complete diffuse reflections after gas-wall collisions. The transmiss...
When it is out gas, the pressure is clearly insufficient. 翻译结果2复制译文编辑译文朗读译文返回顶部 As it comes out when the gas supply, air pressure is obviously inadequate. 翻译结果3复制译文编辑译文朗读译文返回顶部 As it comes out when the gas supply, air pressure is obviously inadequate. ...
pressure and temperature, and bearing mechanical stress, resulting in physical and chemical changes, such as wear, creep, corrosion, and so on, gradually making the equipment unable to continue operating safely under the required design parameters. Invisible aging refers to technological progress. The...
A gas turbine derives power from a combustible air/fuel mixture from which energy is extracted to produce useful work (power). • The main components of a gas turbine are the gas generator consisting of (the air compressor, the combustor system, and the high-pressure turbine) and the power...
Both relief valves will be electro-hydraulically actuated to have an adequate response time and the combined action of the two valves will be managed completely automatically by the control system. In the same way, valves are closed sequentially once the pressure comes down. ...