物探弯线测量施工方法的研究与应用  

A Study on the Curve Line Measuring Method in Prospecting Practices

作　　者：马远锋 MA Yuanfeng(Geography Information Exploration Company, Sinopec Oilfield Service Jianghan Corporation, Wuhan, Hubei, 430023, Chin)

机构地区：[1]中石化石油工程地球物理有限公司地理地质信息勘查分公司,湖北武汉430023

出　　处：《江汉石油职工大学学报》2018年第2期1-3,共3页Journal of Jianghan Petroleum University of Staff and Workers

摘　　要：鄂南探区长武-旬邑二维地震勘探施工设计测线为弯线。施工中,根据弯线排列施工的特点,充分发挥仪器的潜能,创立了新型测量方法"反向放样法";合理地利用了最佳作业模式和两步法;最大限度地利用了现有的仪器;对弯线预警措施、设置测线弯曲过渡点、拐角控制措施、现场提前踏勘和三人直线定向、弯线终点施测、补救措施、弯线质量分析等多种措施进行了综合运用;编制了数据处理程序;总结出了一条弯线施工的原则,即"测线能直不弯,拐角能小不大,拐角太大,能交不连"。The survey line designed for the two dimensional seismic prospecting in Changwu-Xunyi,E＇nan area is curved line.This paper puts forward a new measuring way＂reverse lofting＂which combines the optimal work mode with the two steps method and makes the best use of the equipments available.This new method manages to put to use a variety of measuring ways including early warning for curve lines,setting transit point for curves,curve controls,pre-survey on site,three-men linear orientation,terminal point testing of curve lines,afterwards remedies and curve line quality analysis.Moreover this paper writes a program of data processing and also summarizes the principle of dealing with curve line practice,that is,＂the straightening of curve lines makes shot point lofting possible,check for straight lines among the array intervals,make turning angles as small as possible,and try to make crossing points instead of extensions＂.

关 键 词：反向放样法 弯曲度 弯线预警 弯曲过渡点 拉直处理 

分 类 号：P631.3[天文地球—地质矿产勘探]