摘要
苏北盆地火成岩发育区地震资料品质一直以来不能满足勘探的需要。近年来江苏油田加强了在火成岩发育区的方法设计、野外试验以及处理技术研究。在观测系统设计上,通过对火成岩发育范围的识别,根据模型正演及采集参数分析,针对火成岩的分布范围合理设计采集方案。在野外采集中,通过详细的近地表结构调查、采集试验及严格施工,确保采集质量。在高精度三维实施区块中,火成岩发育区的地震资料品质有较大提高。
Up to now, quality of seismic data cannot meet requirements of exploration in igneous rock area in Subei Basin. In recent years, method design, field test, and processing technology have been strengthened with implementation of high- precision 3D exploration in Jiangsu Oilfield. On the observation system design, a reasonable acquisition scheme based on distribution features of igneous rocks was designed according to identification of igneous rock growth range, for- ward modeling, and analysis of acquisition parameters. In field acquisition, quality of raw seismic data can be guaranteed by detailed near - surface structure investigation, acquisition test, and strict construction. The seismic data quality of igneous rocks has been improved remarkably in high- precision 3D exploration blocks.
出处
《复杂油气藏》
2013年第4期24-28,共5页
Complex Hydrocarbon Reservoirs
关键词
地震勘探
火成岩
观测系统
覆盖次数
炮检距
炮密度
能量屏蔽
seismic exploration
igneous rock
acquisition geometry
fold
offset
source density
energy shielding
