钻井数据计算机采集与传输系统

COMPUTER ACQUISITION AND TRANSMISSION OF DRILLING DATA

我国钻井信息系统是一个四级树型网络。钻井数据计算机采集与传输系统是这个网络中的一个子网。它包括钻井现场的常规钻井仪表、数据采集处理系统和钻井现场与钻井公司之间的数据通讯网以及钻井公司的计算机系统。本文介绍了一个实用的钻井数据计算机采集与传输系统。它在钻井现场用紫金Ⅱ微机系统控制钻井数据的采集、处理,在钻井公司用IBMPC/XT微机系统收集、处理钻井数据,钻井现场和钻井公司通过超短波无线信道组成集中式星型数据网。考虑到钻井现场的特殊环境和我国的具体情况,该系统直接用六参数钻井仪、八参数钻井仪作为一次仪表,采用了新型的不间断稳压电源。在系统的硬、软件设计上采取了一系列的可靠性措施,保证了系统稳定工作。系统采用模块化结构,为用户使用、维护和今后扩充功能提供了方便。数据网由中心站(钻井公司)采用轮询方式控制,使用标准的数据链路控制规程,和CRC-16校验方式。系统根据钻井操作、工程管理和钻井工艺、地质研究对数据的不同需要,提供了显示、曲线、报表、磁盘记录多种信息介质和必要的数据处理、所有文字都使用中文。

A practical computer acquisition and transmission system of drilling data is presented in this paper. A Chinese made miciocomputer is used to control acquisition and processiong of drilling data at the drilling site. An IBM PC/XT is used to collect and process drilling data at the drilling company. Data communication between drilling site and drilling company is realized through ultrashort wave radio channels. The primary instrument gives six or eight parameter measurement. A new UPS is used for the system. Reliable hardware and software design ensures stable operation. and the modular structure of the system makes user application, maintenance and expansion possible. Standard data chain and CRC-16 check mode are used in inquiry control by the central station at the drilling company. Different information media, such as display, curve drawing, tabulation, disk record and necessary data processing are provided with Chinese characters function.