黄沙坨油田火山岩岩相特征分析

Analysis of Lithofacies Characteristics of Volcanic Rock in Huangshatuo Oilfield

火山粗面岩的分布预测对于黄沙坨油田寻找新的储量目标区具有重要的意义，同时也是黄沙坨油田勘探增储中的难点。根据黄沙坨一欧利坨子地区沙三段火山岩的形成模式，应用古地磁分析、等时振幅及沿层相干切片技术预测了该区火山口的分布范围，并对火山岩喷发的期次进行了划分。在此基础上，进行区域勘探取得较好的增储效果，同时也验证了采用古地磁分析和等时振幅相干切片技术预测火山口的分布范围是可靠的。

The distribution forecast of volcanic trachyte has great significance for Huangshatuo Oil Field to search for new reserves targets, and also are difficulty ot＂ exploration increased storage of 14uangshatuo Oil Field. The distribution range of crater in the region is forecasted according to formation patterns of Huangshatuo Oulituozi region Es3 lava through applying paleomagnetic analysis, and isochronic amplitude and coherent slice, technique, and the volcanic eruption times are divided. On this basis, regional exploration is carried out to obtain better increased storage effect, and simultaneously it also ~＇erifies that the use of paleomagnetic analysis and isochronic amplitude coherent slice technique to forecast the distribution range of crater is reliable.