复杂障碍区可控震源施工质量管理探索及效果

Exploration and Implementation Effect of Quality Management of Controllable Seismic Source Construction in Complex Obstacle Areas

华北地区工农业发达,城市村镇密集,这种复杂的地表障碍给三维地震勘探的炮检点布设带来较大困难,尤其是当前面临着复杂地质目标的精细勘探,需要应用高采样密度的"两宽一高"技术使地震资料品质取得更大突破,但是常规的炸药震源激发,很难达到需要的炮点密度。同时环保与生产新法的颁布实施,也给常规炸药震源的使用提出了更高的要求。为了提高采样密度,最大程度地降低三维地震勘探生产中的安全风险,华北物探处首次在东部复杂障碍区大面积实施可控震源激发的三维地震勘探。本项目依托技术支撑通过超前精细谋划、强化质量意识、严格过程控制、创新质量管理,安全、优质、高效地完成了项目运作,取得了高品质的地震资料,实现了复杂障碍区可控震源激发的规模化生产,为在东部复杂地表区推广可控震源激发奠定了基础。

In north China, industry and agriculture are developed, cities and villages densely distribute, this complex surface barriersbring great difficuhies for the arrangement of shot points in 3D seismic exploration, especially for currently facing the fine explorationof complex geologic targets, the quality of seismic data need to be greatly improved by using ＂two-wide and one-high＂ technology.But it is difficult to reach the required shot point density by conventional explosive source excitation. At the same time, the promulga-tion and implementation of new environmental protection and production laws and regulations also puts forward higher requirements tothe use of conventional explosive seismic sources. In order to improve the sampling density and reduce security risks in 3D seismicexploration to maximum extent, North China Geophysical Exploration Department implemented 3D seismic exploration stimulated bycontrollable seismic source in the eastern complex obstacle area for the first time. In the project, high-quality seismic data is obtainedthrough planning in advance in detail, strengthening quality consciousness, strictly controlling process, innovating quality manage-ment. The project is safely efficiently finished in high quality, and 3D seismic exploration stimulated by controllable seismic source inthe complex obstacle area is implemented in a large scale, which lays the foundation for the promotion of 3D seismic explorationstimulated by controllable seismic source in the eastern complex obstacle area.