摘要
在石油物探工程中,为了提供位置基准,必须进行控制网联测,引入国家控制点。目前石油物探工程领域控制网数据的处理软件主要是美国天宝公司的TBC,但处理石油物探GNSS(全球导航卫星系统)控制网有诸多弊端。GBC是中国石油集团东方地球物理公司自主开发的控制网数据处理软件,该软件符合石油物探工程习惯,内置石油物探测量标准要求。GBC软件具有导入各版本的RINEX数据、基线处理、网平差和报告输出等功能,并在基线处理前加入了固体潮汐、海洋潮汐、卫星端和接收机端的诸多改正,可以处理超长基线。本文从两个石油物探工程GNSS控制网数据处理结果及与TBC软件处理的比较结果可以得出:GBC在百公里左右基线数据处理精度与TBC基本一致或稍优,处理结果符合石油物探测量的相关限差要求。
In the petroleum geophysical prospecting project,in order to provide the position datum,the local control network must be combined with national control points.At present,the data processing software of the control network in the petroleum geophysical prospecting is TBC of the Trimble Inc.,but there are many disadvantages in data processing.GBC is a kind of control network data processing software developed by BGP,which is in line with the requirements of petroleum geophysical prospecting.GBC software has the functions of importing various versions of RINEX data,baseline processing,network adjustment,report outputting,and adding many corrections to earth tide,ocean tide,satellite and receiver before the base line processing,which can processing ultra-long baselines.In this paper,the results of the data processing of the GNSS control network of two geophysical prospecting project and the comparison with the TBC software can be obtained:the accuracy of the baseline data processing of GBC in a hundred kilometers is the same as that of the TBC,and the processing results conform to the related limit requirements of the petroleum seismic survey.
引文
[1]SY/T 5171-2011.陆上石油物探测量规范[S].2011.
[2]柴军兵,孙绍斌,易昌华等.基线处理的核心技术及其实现[J].物探装备,2016,26(2):75-79.