鄂爾多斯盆地南部長7陸相頁巖基質(zhì)孔隙發(fā)育類型及影響因素
發(fā)布時間:2018-04-14 18:40
本文選題:鄂爾多斯盆地 + 陸相頁巖 ; 參考:《西安石油大學(xué)學(xué)報(自然科學(xué)版)》2017年05期
【摘要】:為了探究鄂爾多斯盆地南部長7陸相儲層頁巖基質(zhì)孔隙發(fā)育影響因素,應(yīng)用氬離子拋光-掃描電鏡、X射線衍射能譜儀、有機碳測定、有機質(zhì)成熟度測定、高壓壓汞和Image J圖像處理等分析測試處理技術(shù)對其進行了系統(tǒng)研究。研究表明:長7陸相頁巖中的基質(zhì)孔隙類型主要包括長石和碳酸鹽礦物粒內(nèi)溶孔、粒間溶孔和黏土礦物層間孔,其中頁巖孔隙中65%為溶蝕孔,20%為黏土礦物層間孔,其余為有機孔、微裂縫和殘余粒間孔;頁巖中黏土礦物含量最高;頁巖中溶蝕孔的比例隨有機質(zhì)成熟度升高而增大。有機質(zhì)熱演化過程中產(chǎn)生的有機酸促進了基質(zhì)孔隙發(fā)育,脆性礦物和膠結(jié)物充填了基質(zhì)孔隙不利于孔隙發(fā)育,黏土礦物含量越高基質(zhì)孔隙發(fā)育程度越低。
[Abstract]:In order to investigate the influencing factors on the development of shale matrix pore in the South Minister 7 continental reservoir in Ordos Basin, argon ion polishing and scanning electron microscope (SEM) X-ray diffraction spectrometer, organic carbon measurement and organic matter maturity measurement were used.High pressure mercury injection and Image J image processing are systematically studied.The results show that the matrix pore types of Chang 7 continental shale are mainly composed of dissolution pores in feldspar and carbonate minerals, intergranular dissolution pores and interlaminar pores of clay minerals, in which 65% of the pores in shale are corrosion pores and 20% are interlayer pores of clay minerals.The others are organic pores, microfractures and residual intergranular pores, the clay content in shale is the highest, and the proportion of dissolved pores in shale increases with the maturity of organic matter.Organic acids produced during the thermal evolution of organic matter promote the development of matrix pores, brittle minerals and cemented matrix pores are not conducive to pore development, and the higher the clay content is, the lower the development degree of matrix pores is.
【作者單位】: 西安石油大學(xué)石油工程學(xué)院;西安石油大學(xué)陜西省油氣田特種增產(chǎn)技術(shù)實驗室;
【基金】:國家自然科學(xué)基金面上項目“頁巖氣藏水平井液態(tài)氣動力壓裂增產(chǎn)新方法研究”(51374170) 陜西省工業(yè)科技攻關(guān)項目“頁巖氣壓裂儲層多尺度孔隙氣體賦存及流動規(guī)律研究”(2015GY109) 陜西省教育廳重點實驗室科研計劃基金資助項目(15JS086)
【分類號】:P618.13
【相似文獻】
相關(guān)期刊論文 前6條
1 李寧;武宏亮;馮慶付;王克文;石玉江;李慶峰;羅興平;;火山巖、白云巖儲層基質(zhì)孔隙度計算方法分析(英文)[J];Applied Geophysics;2009年03期
2 代雙河;田兵;韓宇春;;基質(zhì)孔隙型碳酸鹽巖儲層預(yù)測技術(shù)及應(yīng)用[J];石油地球物理勘探;2006年06期
3 胡素明;胥珍珍;任維娜;王釩潦;吳克柳;;對煤儲層基質(zhì)解吸氣擴散理論的再探討[J];斷塊油氣田;2012年06期
4 倫增珉;;懸浮固相顆粒對儲集層基質(zhì)孔隙的堵塞規(guī)律研究[J];后勤工程學(xué)院學(xué)報;2006年03期
5 管俊芳,侯瑞云;煤儲層基質(zhì)孔隙和割理孔隙的特征及孔隙度的測定方法[J];華北水利水電學(xué)院學(xué)報;1999年01期
6 尹洪彥;;松遼盆地徐家圍子斷陷火山巖儲層基質(zhì)孔隙度、滲透率測井計算方法[J];內(nèi)蒙古石油化工;2011年05期
,本文編號:1750535
本文鏈接:http://www.sikaile.net/kejilunwen/shiyounenyuanlunwen/1750535.html
最近更新
教材專著