【正文】 方法研究 大慶石油學院 I 目 錄 前 言 .......................................................................................................................................... 3 一、項目概述 ........................................................................................................................ 3 二、合同的執(zhí)行情況 .............................................................................................................. 5 三、低阻油層測井評價研究與進展 ......................................................................................... 7 四、取得成果及認識 .............................................................................................................13 第一章 研究區(qū)地質概況 ..............................................................................................................15 、斷裂特征 .............................................................................................................15 構造特征 ...............................................................................................................15 斷裂特征 ...............................................................................................................16 沉積特征與油層劃分 .......................................................................................................16 沉積特征 ...............................................................................................................16 油層組劃分 ............................................................................................................16 儲層巖性、物性特征 .......................................................................................................17 儲層巖性特征 ........................................................................................................17 儲層物性特征 ........................................................................................................18 油藏性質及特征 ..............................................................................................................18 油水分布特征 ........................................................................................................18 油藏類型 ...............................................................................................................19 流體性質 .........................................................................................................................19 溫度和壓力 .....................................................................................................................19 第二章 巖石物理實驗 ..................................................................................................................21 實驗內容 ........................................................................................................................21 巖心選擇說明 .................................................................................................................21 完成的實驗項目 .............................................................................................................23 第三章 葡萄花油層儲層“四性”關系研究 ..................................................................................24 葡萄花油層的巖性、含油性與物性關系 ..........................................................................24 葡萄花油層的物性、含油性與電性關系 ..........................................................................26 第四章 低阻油層成因機理研究 ....................................................................................................31 低阻油層成因機理研究 ...................................................................................................31 巖性特征 ..............................................................................................................31 物性特征 ..............................................................................................................35 孔隙結構特征 .......................................................................................................36 粘土礦物特征 .......................................................................................................39 地層水礦化度特征 ................................................................................................40 低阻油層成因機理總結 .........................................................................................41 高阻水層成因機理研究 ...................................................................................................42 殘余油影響占主導的高阻水層 ...............................................................................42 鈣質影響占主導的高阻水層 ..................................................................................42 殘余油和鈣質影響共同作用的高阻水層 .................................................................44 第五章 儲層巖電實驗規(guī)律研究 ....................................................................................................45 地層因素與孔隙度關系研究 ............................................................................................45 II 膠結指數(shù)變化規(guī)律研究 ...................................................................................................46 電阻增大系數(shù)與含水飽和度關系研究 ..............................................................................53 飽和度指數(shù)變化規(guī)律研究 ...............................................................................................55 b 值變化規(guī)律研究 ............................................................................................................61 第六章 儲層參數(shù)解釋方法 ...........................................................................................................66 確定地層泥質含量 ...........................................................................................................66 確定地層孔隙度 ..............................................................................................................66 確定束縛水飽和度 ..........................................................................................................69 確定地層滲透率 ...................................................