A Theoretical Computation Method For Improving the Positioning Precision of Cable Deployment in OBC Seismic Data Acquisition
详细信息
- 责任者：Cheng Changxu (Energy Technology & Service Ltd. ; CNOOC ; Tianjin 300452 ; China) ; Zhang Jianfeng
- 刊名：Geophysical Prospecting for Petroleum
- 出版年：2011
- 卷期：50(4)
- 关键词：数据采集 ; data acquisition
- 页码：p.406-409
- 图表：4 illus., 1 table, 15 refs.
- 分类号：1600
- issnNo：ISSN1000-1441
- isbnNo：CN32-1284/TE
摘要
It is difficult to control the precision of deploying the cable at the accurate point in the Ocean Bottom Cable (OBC) seismic data acquisition. Considering all the aspects of influencing factors, the authors carried out mechanical analysis and kinematics analysis on the cable after deployed into the water, and proposed a theoretical calculation methods to improve the positioning precision of cable deployment in OBC seismic data acquisition. The new method can well calculate the reservation length of throwing point in longitudinal and transverse direction. By applying the method, the authors can establish cable-laying database of the work area to scientifically guide actual operation, which can increase the precision of cable deployment, obtain more even fold and improve the quality of seismic data.