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KL10-1是最近在渤海海域发现的大型古近系沙河街组油田,精细中深层储层预测是高效快速评价KL10-1大型油田的主要问题。为探索中深层沙三中段储层的分布规律,采用了地质-地震一体化储层预测新技术。根据沙三段物源方向,进行层序地层划分,建立沙三段沉积模式。分析表明沙三段主要含油层位是高位域辫状河三角洲储集体,该期三角洲可分为4期砂体,在KL10-1油田沙三段油层主要是其中两期。在沉积模式的指导下,以体系域为制图单元组合,提取地震属性,进一步预测储层横向展布。地质-地震一体化技术的应用证实,KL10-1构造目的层储层分布稳定,由西南向东北有变差的趋势。
KL10-1 is a large-scale Paleogene Shahejie formation oilfield recently discovered in the Bohai Sea. The prediction of fine mid-deep reservoirs is a major issue for the efficient and rapid assessment of large-scale KL10-1 oilfields. In order to explore the distribution of reservoirs in the middle and deeper Sha3 reservoirs, a new technology of geologic-seismic integrated reservoir prediction was adopted. According to the source direction of Es3 Member, stratigraphic sequence stratigraphy is divided to establish sedimentary model of Es3. The analysis shows that the main oil layer in the third member of the Shahejie Formation is a high-level braided delta reservoir, and the delta can be divided into four sand bodies. Two of the Sha3 member reservoirs in the KL10-1 oil field are mainly two of them. Under the guidance of sedimentary model, taking the systematic domain as the mapping unit combination, the seismic attributes are extracted to further predict the horizontal distribution of the reservoir. The application of the geo-seismic integration technology confirms that the distribution of the reservoirs in the KL10-1 structural target is stable and tends to deteriorate from southwest to northeast.