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本文阐述了如何应用现代地质科学技术来改进气藏预测、完善生产计划和优化天然气采收率。 通过进行详细的沉积学研究可确定储集层的沉积环境、单个砂体的可能形态和规模。从而可优化气藏模型。其气田实例为位于加里曼丹马哈坝河三角洲区和泰国湾的几个气田。 层序地层学有助于识别出一些全气田分布的有效区域盖层,这些区域盖层的存在使得我们可以将大量单个砂体(在某些情况下多达几百个)组合成少量的流动单元,从而有助于进行气藏管理。这种技术在描述印度尼西亚大型Peciko气田时得到了广泛的应用。 用地球物理测井法和地震特征识别法确定储层参数目前越来越受到人们的重视。马达班湾的Yadana气田就是一个表明如何根据用地震反演技术求得的阻抗值来确定孔隙度的一个实例。 Bongkot气田这一实例说明了如何使用三维地震和直接烃类显示(DHI)技术在复杂的断裂带进行油气勘探,以便优化斜井剖面和提高采收率。
This article describes how to apply modern geological science and technology to improve gas reservoir prediction, improve production planning and optimize natural gas recovery. By conducting detailed sedimentological studies, the sedimentary environment of the reservoir, the possible morphology and size of the individual sand bodies can be determined. This optimizes the reservoir model. Examples of its gas fields are the gas fields located in the Mahaba Delta and the Gulf of Thailand in Kalimantan. Sequence stratigraphy helps to identify effective gas cap zones in some gas-field distributions. The presence of caprocks in these regions allows us to combine a large number of individual sandbodies (up to several hundred in some cases) into small flows Unit, which helps to carry out gas reservoir management. This technique has been widely used to describe the large Peciko gas field in Indonesia. At present, more and more attention has been paid to the determination of reservoir parameters by geophysical well logging and seismic character recognition. The Yadana field in Madaba Bay is an example of how porosity can be determined based on the impedance values found using seismic inversion techniques. Bongkot Gas Field This example illustrates how to use 3D seismic and direct hydrocarbon display (DHI) techniques to conduct hydrocarbon exploration in complex fracture zones to optimize inclined well profiles and enhance oil recovery.