苏里格气田苏东41-33区块气藏富集区域预测

Prediction of Gas Enrichment Areas in Block Sudong 41-33 of Sulige Gas-field

苏里格气田苏东41-33区块为典型的低孔、低渗气藏。开展气藏富集区域预测对于目标区块的开发非常重要。通过对构造特征、沉积相、储层特征进行研究,分析了砂体展布规律,确定了有效储集砂体的特征、类型以及主控因素,建立了有效砂体分类评价的标准,并根据该标准对目标区的气藏富集区域进行了预测。预测认为在目标区的东北部、中部和西南部存在3个气藏富集区域,并提出了不同富集区域的开发建议。研究成果为指导苏里格气田规模开发提供了技术支持,同时也为我国同类气田的勘探开发提供一定的借鉴。

Block Sudong 41-33 in Sulige Gas-field was a typical reservoir with low porosity and low permeability.The prediction of gas enriched area was very important for the target zone development.By studying the sedimentary characters,the sedimentary facies and reservoir characteristics,the sand-body distribution rules were studied and the effective reservoir characteristics,its type and major control factors were determined,the criterion for sand body classification was established,and the gas enriched areas in the target zone were predicted based on the criterion.The result shows that there exist 3 gas enriched areas in the east,the middle and west of the target zone,and suggestions are given for the development of different areas.It provides a support for the development of Sulige Gas-field at a large scale,it also provides reference for similar gas-field development.