Seismic data acquisition in Huangqiao-Rugao region.
Sinopec East · 2004
Extensive seismic exploration has been carried out in Huangqiao-Rugao region at the late 1970s. However, the obtained profiles are poor in quality due to many factors, including that seismic surveys are impeded by dense population, sharp energy attenuation and relatively low frequency caused by shooting in drifting sand and easy-collapsed holes, as well as rapid lateral variations of weathering zone. Many measures or methods are tested in data acquisition, such as broadened line, short group interval and super multi-channel, variable line segment, different shot hole patterns and explosive charges, low velocity layer investigation, etc. Combining with data processing and interpretation, a suite of explora- tion methods has been developed. Desired results have been achieved.