發(fā)布時(shí)間：2018-11-17 10:46

【摘要】：當(dāng)今采用射孔的方法進(jìn)行出油操作已經(jīng)成為對(duì)油田進(jìn)行開發(fā)的重要手段。油田在進(jìn)行射孔之前必須對(duì)油田射孔數(shù)據(jù)進(jìn)行前期的處理,這樣才能確保射孔位置準(zhǔn)確。我們稱之為油田射孔數(shù)據(jù)預(yù)處理,包括油田射孔數(shù)據(jù)的提取、轉(zhuǎn)儲(chǔ)、插值、曲線的平滑及其油田射孔校深的過程。因此對(duì)于油田射孔數(shù)據(jù)的預(yù)處理工作變得尤為重要,直接影響到油田射孔深度的確定,及射孔排炮的準(zhǔn)確性。射孔數(shù)據(jù)預(yù)處理工作是射孔質(zhì)量保證的前提。本課題中對(duì)測(cè)井曲線進(jìn)行了轉(zhuǎn)儲(chǔ)及讀取,然后用五點(diǎn)三次的方法對(duì)采樣數(shù)據(jù)進(jìn)行平滑濾波處理,采用B樣條的方法將套前套后曲線的采用間隔進(jìn)行統(tǒng)一,為油田射孔校深工作奠定基礎(chǔ),為了解決油田射孔校深的優(yōu)化需求,依據(jù)相關(guān)算法和尖峰特征提取,建立了射孔曲線校深的數(shù)學(xué)模型,提出了一種新的深度校正方法。先利用極值選取合理的尖峰,然后應(yīng)用相關(guān)系數(shù)法準(zhǔn)確選取相似曲線段位置,確定最佳匹配尖峰,進(jìn)而計(jì)算尖峰深度校正值。對(duì)于油田射孔排炮針對(duì)目前國(guó)內(nèi)外油田射孔排炮算法的研究,針對(duì)油管傳輸射孔排炮提出了優(yōu)化的回溯算法,增加了剪枝條件,減少了回溯的步驟,極大的減少了計(jì)算量,增加了排炮厚度、提高了排炮速度。針對(duì)電纜射孔排炮使用的是分治的算法,對(duì)油井進(jìn)行排炮的。極大的節(jié)省了時(shí)間,得到了算法的實(shí)現(xiàn)。
[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.
【學(xué)位授予單位】：沈陽(yáng)理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE257.1

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