The offshore oilfield development requires high single well productivity, then can get better economic benefit.
海上油田开发要求单井具有较高的产能，才能获得较好的经济效益。
By changing the initial formation of reservoir permeability and pressure, the impact of coalbed gas single well productivity was obtain.
通过改变储层渗透率和初始地层压力，分析了储层变形对煤岩气藏单井产能的影响。
Coal gas reservoir single well productivity formula was established by use of the model of reservoir permeability changes with reservoir deformation.
依据储层变形与渗透率变化关系数学模型，推导建立了考虑储层变形的煤岩气藏单井产能公式。
Considering effect of stress sensitivity, it derives new productivity equation, and calculates effect of permeability change on single well productivity.
在考虑储集层应力敏感影响的情况下，推导出新的产能方程，计算了渗透率变化对单井产能的影响。
The interpretative parameter provides effective evidence for productivity evaluation and single well work.
解释的参数以及单井措施作业都对产能评价提供了有效的依据。
The problems in the exploitation of such reservoirs are that the high viscosity leads single well to low productivity, and the sand production is also high, affecting the normal production.
此类油藏开采中存在的问题是原油粘度高导致单井产能低，而且极易出砂，影响正常生产。
When the recovery of recoverable reserve is more than 80%, the single well fluid productivity rate will decline, the number of active Wells will reduce as the composite water cut is more than 90%.
可采储量采出程度达80%后，单井日产液、采液速度降低。综合含水达90%后，油井开井数降低。
When the recovery of recoverable reserve is more than 80%, the single well fluid productivity rate will decline, the number of active Wells will reduce as the composite water cut is more than 90%.
可采储量采出程度达80%后，单井日产液、采液速度降低。综合含水达90%后，油井开井数降低。
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