本文關(guān)鍵詞：致密砂巖孔隙結(jié)構(gòu)參數(shù)與電學(xué)性質(zhì)關(guān)系研究　出處：《西南石油大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 致密砂巖 孔隙結(jié)構(gòu) 電學(xué)參數(shù) 含水飽和度 Pickett圖版

【摘要】：巖石物理是認(rèn)識油氣藏的基礎(chǔ),是銜接油氣藏地質(zhì)及油氣藏開發(fā)的重要橋梁。以巖石物理為基礎(chǔ)的測井是發(fā)現(xiàn)、評價油氣藏的重要手段。致密巖石巖電參數(shù)的實驗研究,是巖石物理學(xué)的重要內(nèi)容,也是測井學(xué)科的基礎(chǔ)。巖石的電性主要取決于巖石的孔隙結(jié)構(gòu)特征。因此,開展巖石電學(xué)參數(shù)與孔隙結(jié)構(gòu)參數(shù)關(guān)系研究,對復(fù)雜儲層測井精細(xì)解釋與評價具有重要意義。 在蘇里格氣田致密砂巖氣藏地質(zhì)綜合研究成果的基礎(chǔ)上,探索致密砂巖電學(xué)參數(shù)測試方法及測試規(guī)程,模擬原地條件測試巖石電學(xué)參數(shù),基于電學(xué)實驗對孔隙結(jié)構(gòu)與電學(xué)參數(shù)關(guān)系進(jìn)行了修正,繪制了基于巖電實驗數(shù)據(jù)的Pickett圖版。 完善了巖電實驗巖樣預(yù)處理洗鹽方法,明確了洗鹽對致密砂巖電學(xué)參數(shù)影響機(jī)理。采用抽真空多輪次甲醇高壓飽和法處理致密砂巖樣品,克服了因孔喉細(xì)小存在吸附氣,常規(guī)索氏抽提方法很難將可溶鹽洗出的不足。 綜合考慮致密砂巖氣藏特征,建立了致密砂巖巖心電學(xué)性質(zhì)測量方法及其操作規(guī)程。針對常規(guī)驅(qū)替法建立含水飽和度測量原地巖電參數(shù)存在的問題,分別采用自吸增水法和氣驅(qū)降水法建立含水飽和度,測定了致密砂巖樣品的電學(xué)參數(shù)。基于對2種方法實驗結(jié)果分析,推薦滲透率大于1×10-3μm2的巖樣使用氣驅(qū)降水法；滲透率小于1×10-3μm使用自吸增水法。 基于原地有效應(yīng)力條件下的巖電實驗,提出5%是致密砂巖巖電性質(zhì)臨界孔隙度。膠結(jié)指數(shù)m、飽和度指數(shù)n、地層因素F在孔隙度5%左右存在變化分界點。致密砂巖巖電實驗應(yīng)考慮原地有效應(yīng)力,采用地面條件下的巖電參數(shù)會造成含水飽和度計算誤差,誤差范圍在±16%。 基于巖石電學(xué)實驗,明確了工區(qū)致密砂巖孔喉半徑、迂曲度與地層因素之間關(guān)系,并通過壓汞法獲取的實驗數(shù)據(jù)進(jìn)行了驗證。同時,對孔隙結(jié)構(gòu)參數(shù)對電學(xué)參數(shù)影響機(jī)理進(jìn)行了研究,孔喉尺寸對電學(xué)參數(shù)影響較小,孔喉迂曲度對電學(xué)參數(shù)影響較大。飽和巖石電學(xué)參數(shù)受孔隙結(jié)構(gòu)影響比不完全飽和巖石明顯。依據(jù)滲透率級別劃分的三類儲層,Ⅰ類與Ⅲ類儲層的地層因素、膠結(jié)指數(shù)、飽和度指數(shù)與孔隙度關(guān)系良好,Ⅲ類儲層關(guān)系不顯著。繪制了基于巖電實驗數(shù)據(jù)的Pickett圖版,探討了孔隙結(jié)構(gòu)參數(shù)與電學(xué)性質(zhì)關(guān)系應(yīng)用。
[Abstract]:Rock physics is the basis to understand the oil and gas reservoirs, is an important bridge between the oil and gas reservoir geology and exploitation of the oil and gas reservoirs. Logging based on rock physics based is found, an important means of evaluating oil and gas reservoirs. Experimental research on rock electrical parameters of tight rock, is an important content of rock physics, is also the basis of well logging the pore structure characteristics of rock. The rock electrical depends. Therefore, to carry out the research on the relationship between rock electrical parameters and pore structure parameters, is of great significance to the complex reservoir logging interpretation and evaluation.
Based on comprehensive reservoir geology research results of tight sandstone gas reservoir of Sulige gas exploration on the test methods and test procedures for electrical parameters of tight sandstone, simulation test of electrical parameters of rock in situ conditions, electrical experiments on the structure and electrical parameters are modified based on the relationship of pore, drawing the Pickett chart based on the experimental data of rock electricity.
To improve the pretreatment method of electric desalting of rock core samples, the mechanism of effects of salt on tight sandstone electrical parameters. The use of vacuum pressure method in the treatment of multiple rounds of methanol saturated sandstone samples, avoid small pore throat of adsorbed gas, the conventional method is difficult to extract the cable's lack of soluble salt elution.
The characteristics of tight sandstone gas reservoir considering the electrical properties of dense sandstone core measurement method and its operation rules are established. According to the conventional displacement method to establish electrical parameters measurement in situ water saturation problems, respectively, based on the self absorption and increase water saturation of water flooding precipitation method, the electrical parameters of tight sandstone samples was measured based on. 2 methods for the analysis of experimental results, the recommended permeability less than 1 * 10-3 M2 samples using gas flooding precipitation method; permeability less than 1 * 10-3 m using a self suction water increment method.
There should be effective electricity experiment under the condition of force, put forward 5% tight sandstone rock electrical properties of critical porosity. The cementation exponent m and saturation index n, F in about 5% porosity formation factors are changing the boundary point. Tight sandstone rock electric experiment should be considered in the effective stress, the electrical parameters of rocks under the noodles will cause the error calculation of water saturation, the range of error in 16%..
Rock electrical experiment based on the area of dense sandstone pore throat radius, the relationship between the tortuosity and the formation factors, and the experimental data obtained by mercury intrusion method was verified. At the same time, the mechanism of the effect of pore structure parameters on the electrical parameters of pore throat size has little effect on the electrical parameters, the tortuosity of pore throat the electrical parameters influence. Saturated rock electrical parameters affected by pore structure is not completely obvious. On the basis of saturated rock permeability grade three reservoir, formation factor, class I and class III reservoir cementation index, saturation index and porosity type reservoir of good relationship, the relationship is not significant. The Pickett curve drawing experiment based on the data of rock electricity, discusses the relationship between pore structure parameters and electrical properties.

【學(xué)位授予單位】：西南石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P618.13;P631.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 高楚橋,李先鵬,吳洪深,李茂文,林德明;溫度與壓力對巖石物性和電性影響實驗研究[J];測井技術(shù);2003年02期

2 趙軍,劉興禮,李進(jìn)福,夏宏泉,陳福煊,劉之的;巖電參數(shù)在不同溫度、壓力及礦化度時的實驗關(guān)系研究[J];測井技術(shù);2004年04期

3 鄭慶林;王鈺森;趙雨;;低孔隙度條件下阿爾奇含水飽和度解釋模型改進(jìn)[J];測井技術(shù);2006年01期

4 邵維志;丁娛嬌;劉亞;劉詩瓊;李玉泉;趙金河;;核磁共振測井在儲層孔隙結(jié)構(gòu)評價中的應(yīng)用[J];測井技術(shù);2009年01期

5 田素月;司馬立強(qiáng);;普光地區(qū)縫洞性儲層巖電參數(shù)影響因素分析[J];測井技術(shù);2009年02期

6 李潮流;徐秋貞;張振波;;用核磁共振測井評價特低滲透砂巖儲層滲透性新方法[J];測井技術(shù);2009年05期

7 王憲剛;任曉娟;張寧生;繆飛飛;;低滲透率氣藏巖石電性參數(shù)特征及影響因素[J];測井技術(shù);2010年01期

8 范宜仁,鄧少貴,周燦燦;低礦化度條件下的泥質(zhì)砂巖阿爾奇參數(shù)研究[J];測井技術(shù);1997年03期

9 孫建孟;吳金龍;于代國;徐興松;;阿爾奇參數(shù)實驗影響因素分析[J];大慶石油地質(zhì)與開發(fā);2006年02期

10 毛志強(qiáng)，章成廣;油藏條件下孔隙巖樣毛管和電學(xué)性質(zhì)研究[J];地球物理學(xué)進(jìn)展;1995年01期

相關(guān)博士學(xué)位論文 前2條

1 張守偉;東營北帶砂礫巖儲層巖石物理特征研究[D];中國石油大學(xué);2011年

2 王學(xué)武;大慶外圍特低滲透儲層微觀孔隙結(jié)構(gòu)及滲流機(jī)理研究[D];中國科學(xué)院研究生院（滲流流體力學(xué)研究所）;2010年

，

本文編號：1400137