油田射孔数据预处理与排炮算法的研究与实现
发布时间：2018-11-17 10:46
【摘要】：当今采用射孔的方法进行出油操作已经成为对油田进行开发的重要手段。油田在进行射孔之前必须对油田射孔数据进行前期的处理,这样才能确保射孔位置准确。我们称之为油田射孔数据预处理,包括油田射孔数据的提取、转储、插值、曲线的平滑及其油田射孔校深的过程。因此对于油田射孔数据的预处理工作变得尤为重要,直接影响到油田射孔深度的确定,及射孔排炮的准确性。射孔数据预处理工作是射孔质量保证的前提。本课题中对测井曲线进行了转储及读取,然后用五点三次的方法对采样数据进行平滑滤波处理,采用B样条的方法将套前套后曲线的采用间隔进行统一,为油田射孔校深工作奠定基础,为了解决油田射孔校深的优化需求,依据相关算法和尖峰特征提取,建立了射孔曲线校深的数学模型,提出了一种新的深度校正方法。先利用极值选取合理的尖峰,然后应用相关系数法准确选取相似曲线段位置,确定最佳匹配尖峰,进而计算尖峰深度校正值。对于油田射孔排炮针对目前国内外油田射孔排炮算法的研究,针对油管传输射孔排炮提出了优化的回溯算法,增加了剪枝条件,减少了回溯的步骤,极大的减少了计算量,增加了排炮厚度、提高了排炮速度。针对电缆射孔排炮使用的是分治的算法,对油井进行排炮的。极大的节省了时间,得到了算法的实现。
[Abstract]:Nowadays, perforating operation has become an important means of oilfield development. In order to ensure the accuracy of perforation, oilfield perforation data must be processed before perforation. We call it oilfield perforation data preprocessing, including the extraction of oilfield perforation data, reservoir, interpolation, smoothing of curves and the process of adjusting the depth of perforation in oil field. Therefore, it is very important to preprocess the perforation data, which directly affects the depth of perforation and the accuracy of perforation. The preprocessing of perforation data is the premise of the quality assurance of perforation. In this paper, the logging curves are stored and read, and the sampling data is processed smoothly by 5.3 times, and the interval between the front and back curves is unified by B-spline method. In order to solve the optimization requirement of perforating depth in oil field, a mathematical model of perforation curve depth calibration is established according to correlation algorithm and peak feature extraction, and a new depth correction method is proposed. The optimum matching peak is determined by using the correlation coefficient method to determine the optimum matching peak, and then the correction value of the peak depth is calculated by using the extreme value to select the reasonable peak, and then the correlation coefficient method is used to accurately select the position of the similar curve segment. For the research of oil field perforating and firing algorithm at home and abroad, and for tubing transmission perforation, an optimized backtracking algorithm is put forward. The pruning condition is increased, the backtracking steps are reduced, and the amount of calculation is greatly reduced. Increased the firing thickness, increased the firing speed. The divide-and-conquer algorithm is used for the cable perforation discharge gun, which is used to discharge the oil well. Greatly saves time, obtains the algorithm realization.
【学位授予单位】：沈阳理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE257.1
本文编号：2337494
[Abstract]:Nowadays, perforating operation has become an important means of oilfield development. In order to ensure the accuracy of perforation, oilfield perforation data must be processed before perforation. We call it oilfield perforation data preprocessing, including the extraction of oilfield perforation data, reservoir, interpolation, smoothing of curves and the process of adjusting the depth of perforation in oil field. Therefore, it is very important to preprocess the perforation data, which directly affects the depth of perforation and the accuracy of perforation. The preprocessing of perforation data is the premise of the quality assurance of perforation. In this paper, the logging curves are stored and read, and the sampling data is processed smoothly by 5.3 times, and the interval between the front and back curves is unified by B-spline method. In order to solve the optimization requirement of perforating depth in oil field, a mathematical model of perforation curve depth calibration is established according to correlation algorithm and peak feature extraction, and a new depth correction method is proposed. The optimum matching peak is determined by using the correlation coefficient method to determine the optimum matching peak, and then the correction value of the peak depth is calculated by using the extreme value to select the reasonable peak, and then the correlation coefficient method is used to accurately select the position of the similar curve segment. For the research of oil field perforating and firing algorithm at home and abroad, and for tubing transmission perforation, an optimized backtracking algorithm is put forward. The pruning condition is increased, the backtracking steps are reduced, and the amount of calculation is greatly reduced. Increased the firing thickness, increased the firing speed. The divide-and-conquer algorithm is used for the cable perforation discharge gun, which is used to discharge the oil well. Greatly saves time, obtains the algorithm realization.
【学位授予单位】：沈阳理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE257.1
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