随钻井眼轨迹与测井数据三维可视化技术研究

发布时间：2018-04-25 15:00

本文选题：随钻 + 井眼轨迹　；参考：《中国石油大学(华东)》2015年硕士论文

【摘要】：随钻测井LWD(Logging While Drilling)是近些年来快速崛起的一种新型测井技术,能够在钻井的过程同时测量地层的各种属性数据,应用范围十分广泛。随钻测井技术对地质导向、复杂井和复杂地层的含油气情况的评价、薄油层等难动用储量的开发等具有重要意义。利用随钻测井实现地质导向、地层评价的关键技术之一是随钻测井井眼轨迹以及测井数据的可视化。随着计算机和计算机图形学的飞速发展,随钻井眼轨迹和测井数据的三维可视化成为了研究的热点。利用随钻测井实时获取的各种工程和地层属性数据绘制出的三维井眼轨迹和三维测井曲线,不仅能够直观地显示出井眼轨迹的空间形态,还能直观展示测井数据的变化,反映地层含义,利于地质导向和地层评价工作的顺利进行。本文首先对国内外随钻井眼轨迹和测井数据三维可视化的研究现状进行分析,发现其中的优势与不足;然后分别对三维可视化技术、随钻数据预处理和标准化方法、井眼轨迹测斜计算方法的进行研究,设计相应的算法实现井眼轨迹三维空间坐标的计算;随后基于井眼轨迹的三维空间坐标以及三维图形变换原理,提出了一种全新的实现测井曲线三维可视化的方法;最后综合运用Qt、Open Inventor和C++,采用面向对象思想,设计并实现了随钻数据可视化原型系统。随钻数据可视化原型系统不但能够实时读取并处理各种随钻井眼轨迹数据和测井数据,而且能够实时、高效、准确地实现随钻井眼轨迹和测井曲线在三维地质模型中的三维显示,具有较高的实用价值。
[Abstract]:Drilling while drilling (LWD(Logging While drilling) is a new type of logging technology, which can be used to measure all kinds of attribute data of formation at the same time during drilling, and it is widely used in recent years. Logging while drilling is of great significance to geological guidance, evaluation of oil and gas content in complex wells and complex formations, development of hard-to-produce reserves such as thin oil layers, and so on. One of the key techniques of formation evaluation is the visualization of borehole trajectory and logging data. With the rapid development of computer and computer graphics, 3D visualization of borehole trajectory and logging data has become a hot topic. The 3D borehole trajectory and 3D logging curve drawn from various engineering and formation attribute data obtained in real time by logging while drilling can not only show the spatial shape of borehole trajectory intuitively, but also show the change of logging data directly. Reflecting the stratigraphic meaning is propitious to the geological guidance and the smooth progress of the stratigraphic evaluation work. In this paper, the present situation of 3D visualization of borehole trajectory and logging data at home and abroad is analyzed, and the advantages and disadvantages are found, and then the 3D visualization technology, the preprocessing and standardization methods of data while drilling are discussed respectively. The calculation method of borehole trajectory deviation is studied, and the corresponding algorithm is designed to realize the calculation of the 3D spatial coordinate of the borehole trajectory, and then based on the 3D spatial coordinate of the borehole trajectory and the principle of 3D graphic transformation, A new method to realize 3D visualization of logging curves is proposed, and finally, a prototype system for visualization of data while drilling is designed and implemented by using QTX Open Inventor and C and object oriented thought. The prototype system not only can read and process all kinds of drilling trajectory data and logging data in real time, but also can be real-time and efficient. It is of great practical value to accurately realize the 3D display of borehole trajectory and logging curve in 3D geological model.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE24;TP391.41

【相似文献】