本文選題：贛北 + 高、過成熟頁巖　； 參考：《中國礦業(yè)大學》2017年碩士論文

【摘要】：為研究贛北地區(qū)高、過成熟頁巖微觀孔隙發(fā)育特征及其儲氣性能,論文采用壓汞、低溫氮氣吸附實驗方法分析了樣品的孔隙結(jié)構(gòu)、孔徑分布、比表面積,核磁共振方法測定了樣品的孔隙度、滲透率。掃描電鏡實驗觀察了孔隙形態(tài)、類型,并結(jié)合Arc GIS技術(shù)統(tǒng)計分析了孔隙數(shù)量、面孔率。并根據(jù)實驗所得數(shù)據(jù)探討了影響贛北高、過成熟頁巖孔隙發(fā)育的因素,贛北高、過成熟頁巖吸附能力的控制因素及贛北高、過成熟頁巖儲氣性能。通過以上研究得出以下結(jié)論:(1)贛北高、過成熟頁巖孔隙結(jié)構(gòu)多樣,有狹縫狀、無規(guī)則開放孔及墨水瓶孔,其中墨水瓶孔居多�？讖街饕植加谖⒖住⑿】�(3~60nm),平均孔徑略大�？紫额愋椭饕獮榇嘈缘V物粒間孔、溶蝕孔,同時見大量的有機質(zhì)孔。比表面積偏小(0.217~16.4283m~2/g,均值7.1734m~2/g),孔隙度較大(0.4%~18.4%,均值4.14%),滲透率較小(0.0025~0.0163×10~(-3)μm~2,均值0.00985×10~(-3)μm~2)。基于Arc GIS孔隙表征發(fā)現(xiàn)各孔隙類型的形態(tài)多樣,孔徑大小表現(xiàn)為:脆性礦物孔粘土礦物孔有機質(zhì)孔的趨勢。(2)粘土礦物的含量與類型對高、過成熟頁巖孔隙發(fā)育都有影響,與孔容呈一定的正相關(guān),與平均孔徑、孔隙度呈負相關(guān)。而脆性礦物恰好與粘土礦物相反。有機碳含量與孔隙孔容、孔隙度呈正相關(guān)。隨著干酪根類型由腐泥型到混合型,比表面積、總孔體積變大。有機質(zhì)成熟度的影響表現(xiàn)為,低成熟階段到成熟階段,孔容、孔隙度隨著成熟度減小,高、過成熟階段,孔容、孔隙度隨成熟度不斷增大,而比表面積整體上隨著成熟度的升高而降低。主要是由于低成熟階段,由于孔容、孔徑隨成熟度增大而逐漸減小,部分小孔演化為微孔,這個階段孔隙比表面積會短暫的增加,高、過成熟階段孔容、孔徑隨之不斷變大,而大孔徑對比表面積貢獻有限,從而導致比表面積減小。(3)贛北地區(qū)高、過成熟頁巖樣品吸附能力較強。但是贛北高、過成熟頁巖的有機質(zhì)成熟度與氣體吸附量呈現(xiàn)出一定程度的負相關(guān),主要原因是高、過成熟階段,頁巖比表面積減小導致吸附能力減弱。有機碳含量、比表面積、孔體積與最大氣體吸附量呈正比。不同的有機質(zhì)類型吸附能力不同,腐泥型小于混合型,腐泥型小于腐植型�？紫抖扰c甲烷最大吸附量呈負相關(guān)關(guān)系,而孔隙度直接控制著頁巖氣的含量大小。表明高、過成熟頁巖中頁巖氣主要是以游離態(tài)賦存在孔隙中,相對少的部分以吸附態(tài)賦存。
[Abstract]:In order to study the characteristics of micropore development and gas storage performance of high and over mature shale in north Jiangxi Province, the pore structure, pore size distribution and specific surface area of the samples were analyzed by mercury injection and low temperature nitrogen adsorption experiments. The porosity and permeability of the samples were measured by NMR. The pore morphology and type were observed by SEM, and the pore number and porosity were analyzed by Arc GIS technique. Based on the experimental data, the factors affecting the porosity development of the high and over mature shale in northern Jiangxi, the controlling factors of the adsorption ability of the high and over mature shale in the north of Jiangxi and the gas storage performance of the high and over mature shale in the north of Jiangxi are discussed. Through the above research, the following conclusions are drawn: North Jiangxi is high, the pore structure of overmature shale is diverse, there are slit, irregular open pores and ink bottle holes, among which the ink bottle pores are the most. The pore size is mainly distributed in micropores, and the average pore size is slightly larger. Pore types are mainly brittle mineral intergranular pores, dissolution pores, and a large number of organic pores. The specific surface area is small (0.217) 16.4283m/ g, the mean value is 7.1734m/ g / g, the porosity is greater than 0.4m / g / g, and the average value is 4.14g / g, and the average value is 4.14m / g, and the average permeability is 0.002525n0.0163 脳 10 ~ (-3) 渭 m ~ (-2) and the mean value is 0.00985 脳 10 ~ (-3) 渭 m ~ (-2) / m ~ (-1). On the basis of Arc GIS pore characterization, it is found that the pore types are various, and the pore size is: the tendency of organic pore in clay mineral pore of brittle mineral pore. The content and type of clay mineral have influence on the development of pore in overmature shale. There is a positive correlation with pore volume, negative correlation with average pore size and porosity. Brittle minerals are opposite to clay minerals. Organic carbon content is positively correlated with pore volume and porosity. With the kerogen type from saproot to mixed, the specific surface area and the total pore volume become larger. The effect of maturity of organic matter is as follows: from low maturity stage to mature stage, pore volume and porosity decrease with maturity, high, over mature stage, pore volume and porosity increase with maturity. As a whole, the specific surface area decreases with the increase of maturity. It is mainly due to the low maturity stage, the pore volume and pore size gradually decrease with the increase of maturity, and some of the pores evolve into micropores. At this stage, the specific surface area of the pores will increase briefly, and the pore volume will become larger in the over-mature stage, and the pore size will become larger and larger. However, the large pore size has a limited contribution to the specific surface area, which leads to the decrease of the specific surface area. However, the organic matter maturity of the overmature shale is negatively related to the gas adsorption capacity in the north of Jiangxi Province, the main reason is that the adsorption capacity is weakened due to the decrease of the shale specific surface area in the over-mature stage. The organic carbon content, specific surface area and pore volume are directly proportional to the maximum gas adsorption capacity. The adsorption ability of different organic matter types is different, the saproot type is smaller than the mixed type, and the sapropelic type is smaller than the saprophytic type. Porosity is negatively related to the maximum adsorption capacity of methane, and porosity directly controls the content of shale gas. It is shown that shale gas in high and overmature shale mainly occurs in pores in free state and in adsorption in relatively few parts.
【學位授予單位】：中國礦業(yè)大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：P618.13

【參考文獻】

相關(guān)期刊論文 前10條

1 張?zhí)旄?謝淑云;王鑫;王瑩;;孔隙型儲層的孔隙系統(tǒng)三維量化表征——以四川、塔里木盆地白云巖為例[J];海相油氣地質(zhì);2016年04期

2 李笑天;潘仁芳;鄢杰;李夏露;李曉薇;胡斌;;四川盆地長寧—威遠頁巖氣示范區(qū)下志留統(tǒng)龍馬溪組泥頁巖吸附特征及影響因素分析[J];海相油氣地質(zhì);2016年04期

3 王淑芳;張子亞;董大忠;王玉滿;李新景;胡俊文;黃金亮;管全中;;四川盆地下寒武統(tǒng)筇竹寺組頁巖孔隙特征及物性變差機制探討[J];天然氣地球科學;2016年09期

4 周啟偉;陸勝杰;;頁巖氣納米孔隙研究[J];四川建材;2016年04期

5 王同;熊亮;徐猛;董曉霞;周瑞琦;付曉寧;;川南地區(qū)下寒武統(tǒng)筇竹寺組頁巖儲層特征[J];石油實驗地質(zhì);2016年02期

6 姜振學;唐相路;李卓;黃何鑫;楊佩佩;楊瀟;李衛(wèi)兵;郝進;;川東南地區(qū)龍馬溪組頁巖孔隙結(jié)構(gòu)全孔徑表征及其對含氣性的控制[J];地學前緣;2016年02期

7 陳康;張金川;唐玄;于京都;劉樝;楊超;;湘鄂西地區(qū)下志留統(tǒng)龍馬溪組頁巖吸附能力主控因素[J];石油與天然氣地質(zhì);2016年01期

8 史淼;于炳松;薛志鵬;時文;李文博;;黔西北地區(qū)龍馬溪組頁巖氣儲層孔隙特征及其儲氣意義[J];地學前緣;2016年01期

9 唐洪明;王俊杰;張烈輝;郭晶晶;劉佳;龐銘;;頁巖比表面積測試方法與控制因素研究[J];天然氣地球科學;2015年11期

10 張琴;劉暢;梅嘯寒;喬李井宇;;頁巖氣儲層微觀儲集空間研究現(xiàn)狀及展望[J];石油與天然氣地質(zhì);2015年04期

相關(guān)會議論文 前4條

1 陳磊;姜振學;陳委濤;紀文明;;陸相頁巖微觀孔隙結(jié)構(gòu)特征及其對甲烷吸附性能的影響[A];2015年全國沉積學大會沉積學與非常規(guī)資源論文摘要集[C];2015年

2 張曉玲;謝慶明;肖立志;謝然紅;;利用測井資料定量評價頁巖氣層的總有機碳含量[A];中國地球物理2013——第二十三專題論文集[C];2013年

3 姚素平;焦X;;泥頁巖和煤中納米孔隙的表征與定量評價[A];中國礦物巖石地球化學學會第14屆學術(shù)年會論文摘要專輯[C];2013年

4 梁興;張廷山;張朝;龔齊森;;滇黔北地區(qū)下寒武統(tǒng)筇竹寺組高演化頁巖儲層微觀孔隙結(jié)構(gòu)特征及發(fā)育控制因素研究[A];中國礦物巖石地球化學學會第14屆學術(shù)年會論文摘要專輯[C];2013年

相關(guān)碩士學位論文 前8條

1 尹志勝;江西省富有機質(zhì)頁巖層系構(gòu)造埋藏史與頁巖氣富集[D];中國礦業(yè)大學;2015年

2 趙立鵬;江西省富有機質(zhì)頁巖孔裂隙結(jié)構(gòu)特征及其對頁巖氣富集的影響[D];中國礦業(yè)大學;2015年

3 李委員;江西省富有機質(zhì)頁巖巖石學特征與頁巖氣富集[D];中國礦業(yè)大學;2015年

4 李曉媛;柴達木盆地東部石炭系頁巖氣吸附特性[D];中國地質(zhì)大學（北京）;2014年

5 王躍龍;柴達木盆地東部石炭系頁巖突破壓力研究[D];中國地質(zhì)大學（北京）;2014年

6 倪鵬;東營凹陷沙三、沙四段頁巖有機質(zhì)容烴、排烴能力研究及對有機質(zhì)孔隙度指示意義[D];浙江大學;2014年

7 鄧慶杰;上揚子地區(qū)下寒武統(tǒng)巖相古地理及頁巖氣資源潛力評價[D];長江大學;2013年

8 盧炳雄;中國南方下?lián)P子地區(qū)下寒武統(tǒng)頁巖氣資源分布研究[D];成都理工大學;2012年

，

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