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在美国老的含气储层区块中,有效的完井技术不仅依赖于储层中气体体积的准确评价,还依赖于后来的增产措施是否产水,水气比是多少。传统上,该项评价的中心任务是孔隙度和含水饱和度的计算。然而,含水饱和度只是地层内储层流体特性的静态评价参数,并不足以用来指示这些流体的产出能力(含水饱和度谱到达极点时除外)。为了在一次测井过程中很准确地预测整个测井层段的油气产量和产水量,开发出了一项可以提高常规地层评价水平的解释技术——核磁共振、电阻率和孔隙度资料综合评价技术。解释结果所给出的流动剖面基本上可作为预完井裸眼井的生产测井资料,与后期的套管井生产测井比较,从而评估增产措施的有效性和影响再完井的决策,它也为日后储层历史拟合模拟提供资料。该项技术广泛应用于美国大陆和海上环境的油气储层。
In the old gas-bearing blocks in the United States, effective well completion techniques rely not only on accurate assessment of the volume of gas in a reservoir but also on whether subsequent stimulation will produce water or not. Traditionally, the central task of the evaluation has been the calculation of porosity and water saturation. However, water saturation is only a static evaluation parameter of reservoir fluid properties in the formation and is not sufficient to indicate the fluid productivity (except when the water saturation spectrum reaches the extreme). In order to accurately predict oil and gas production and water production throughout the wellbore during a logging process, an interpretation technique that improves conventional formation evaluation has been developed - a comprehensive evaluation of NMR, resistivity and porosity data technology. The results of the interpretation of the proposed flow profile can basically be used as pre-well borehole production well logging data and later cased-hole production well logging to assess the effectiveness of stimulation measures and impact re-completion of the decision-making, it also Provide data for future reservoir simulation. The technology is widely used in oil and gas reservoirs in the continental United States and offshore environment.