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  本文關鍵詞： 陣列感應 水平井 電阻率 正反演　出處：《西安石油大學》2015年碩士論文　論文類型：學位論文

【摘要】：近年來,由于勘探、開發(fā)形勢的需要,水平井、大斜度井的數(shù)量與日俱增。水平井鉆井成本大幅降低,甚至接近直井,其產(chǎn)量是直井的3至8倍。相對于直井,水平井增大了儲集層面積,增強分散儲層的橫向連接能力,井眼軌跡能夠穿過更多的垂直裂縫,極大地發(fā)揮出儲層的潛力,彌補垂直井的不足,提高原油的采收率,能比垂直井獲取更高的產(chǎn)能。水平井綜合設計是由鉆井、地質(zhì)、測井、采油、油藏工程和成本核算員協(xié)同工作,共同完成。測井的目的是引導井眼軌跡沿地質(zhì)模型確定的儲集層方向鉆進和進行儲集層油氣評價。對于水平井和大斜度井,地層電各向異性明顯,其陣列感應測井響應是全三維數(shù)值計算問題,測井響應計算方法和依據(jù)測井讀數(shù)的解釋方法不再適用。本論文以MIT陣列感應儀器為研究對象,首先完成正反演研究,其次分析MIT的現(xiàn)場應用,取得成果如下(1)通過對MIT正演的研究得出水平井的陣列感應測井響應特性取決于層厚、電導率對比度、子陣列間距、儀器距層界面距離等多種因素。通過分析渦流和磁場虛部空間分布特性揭示了陣列感應在斜井和水平井中的響應機理。(2)在對水平井反演研究,合理選擇地質(zhì)模型與儀器觀測模型參數(shù),借助有限元計算雙側向、雙感應響應值,建立測井響應信息庫,從而快速預測雙感應測井響應及反演模型參數(shù)。(3)在實際的現(xiàn)場應用中MIT陣列感應有比常規(guī)電阻率儀器更準確、更直觀的解釋結果,具有較強的劃分薄層及反映層內(nèi)的非均質(zhì)性能力,能直觀合理地描述地層侵入特征和地層真電阻率。
[Abstract]:In recent years, due to the need of exploration and development situation, the number of horizontal wells and large deviated wells is increasing day by day. The drilling cost of horizontal wells is greatly reduced, even close to that of vertical wells, and its output is 3 to 8 times as high as that of vertical wells. Horizontal well increases reservoir area, strengthens horizontal connection ability of dispersed reservoir, and well trajectory can pass through more vertical fractures, greatly exert reservoir potential and make up for the deficiency of vertical well. Improved oil recovery can achieve higher productivity than vertical wells. The integrated design of horizontal wells is coordinated by drilling, geology, logging, oil recovery, reservoir engineering and cost accounting. The purpose of logging is to guide borehole trajectory to be drilled along the direction of reservoir determined by geological model and to evaluate reservoir oil and gas. For horizontal wells and high inclination wells, the formation electric anisotropy is obvious. The array induction logging response is a full three-dimensional numerical calculation problem, and the logging response calculation method and the interpretation method based on logging readings are no longer applicable. This paper takes the MIT array induction instrument as the research object. First, the forward and inverse modeling research is completed, and then the field application of MIT is analyzed. The results are as follows: 1) through the study of MIT forward modeling, it is concluded that the response characteristics of horizontal well array induction logging depend on the formation thickness. Conductivity contrast, subarray spacing. By analyzing the spatial distribution of eddy current and magnetic field virtual part, the response mechanism of array induction in inclined well and horizontal well is revealed. Reasonable selection of geological model and instrument observation model parameters, with the help of finite element calculation of dual lateral and double induction response value, the logging response information database is established. Therefore, the fast prediction of dual induction logging response and inversion model parameters. 3) in practical field applications, MIT array induction is more accurate and more intuitive than conventional resistivity instruments. It has a strong ability of dividing thin layers and reflecting the heterogeneity of the layers, and can describe the formation invasion characteristics and the true resistivity directly and reasonably.
【學位授予單位】：西安石油大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P631.81;TE243

【參考文獻】

相關期刊論文 前10條

1 金力鉆;;水平井測井解釋技術研究[J];中國石油和化工標準與質(zhì)量;2013年06期

2 孫澤;;水平井測井解釋技術問題分析[J];中國新技術新產(chǎn)品;2012年21期

3 萬文春;劉迪仁;夏培;閆林輝;趙迷迷;;水平井與直井儀器偏心和泥漿侵入對雙側向測井的影響[J];石油天然氣學報;2012年01期

4 孔繁達;何濤;姜洪福;;薄互層水平井測井電阻率的各向異性校正[J];北京大學學報(自然科學版);2011年02期

5 李星星;趙俊峰;毛軍;冉慶;史鳳香;胡素華;;陣列感應測井在識別油氣儲層中的應用[J];內(nèi)蒙古石油化工;2009年14期

6 鄧少貴;楊震;李智強;陳華;;大斜度井/水平井復雜介質(zhì)雙側向測井響應數(shù)值模擬[J];測井技術;2009年01期

7 張龍海,劉國強,周燦燦,劉宗誠;基于陣列感應測井資料的油氣層產(chǎn)能預測[J];石油勘探與開發(fā);2005年03期

8 馬建海;應用側向電阻率測井反演儲層污染半徑[J];測井技術;2004年01期

9 趙明,高杰,孫友國;常規(guī)電測井聯(lián)合反演研究與實際應用[J];測井技術;2003年01期

10 韓波,劉家琦,李瑩;電磁波測井雙參數(shù)反演的2-D移動網(wǎng)格搜索法[J];哈爾濱工業(yè)大學學報;2000年05期

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