黔北地區(qū)上奧陶統(tǒng)五峰組—下志留統(tǒng)龍馬溪組黑色巖系頁(yè)巖氣富集條件與分布特征
發(fā)布時(shí)間：2018-07-20 21:54
【摘要】：本論文以黔北地區(qū)上奧陶統(tǒng)五峰組-下志留統(tǒng)龍馬溪組黑色巖系為重點(diǎn),通過(guò)對(duì)大量剖面、鉆井、試驗(yàn)數(shù)據(jù)等資料進(jìn)行系統(tǒng)分析,深入研究富有機(jī)質(zhì)泥巖巖石分類命名方案、有機(jī)地化特征、儲(chǔ)層特征、含氣量控制因素、保存系統(tǒng)等,總結(jié)頁(yè)巖氣成藏富集條件及分布特征。(1)通過(guò)粒度分析試驗(yàn),黔北地區(qū)上奧陶-下龍馬溪組黑色巖系的巖性主要以泥巖為主;通過(guò)巖石礦物組分分析,以有機(jī)碳、石英+長(zhǎng)石、自生礦物、粘土礦物等作為參與命名考慮的主要因素,在前人的分類標(biāo)準(zhǔn)基礎(chǔ)上,重新確立了適合黔北地區(qū)上奧陶統(tǒng)五峰組-下志留統(tǒng)龍馬溪組黑色巖系的巖石分類命名方案。(2)根據(jù)巖石組合、沉積構(gòu)造、生物組合等,對(duì)黔北地區(qū)上奧陶統(tǒng)五峰組-下志留統(tǒng)龍馬溪組富有機(jī)質(zhì)泥巖的沉積微相進(jìn)行劃分;在此基礎(chǔ)上,編制了相應(yīng)的沉積微相巖相古地理圖,同時(shí)確定了有利的沉積微相帶及其宏觀展布。(3)掌握了黔北地區(qū)上奧陶統(tǒng)五峰組-下志留統(tǒng)龍馬溪組富有機(jī)質(zhì)泥巖的縱橫向分布規(guī)律。富有機(jī)質(zhì)泥巖主要位于地層下部,厚度一般小于20m;自南向北,富有機(jī)質(zhì)泥巖的厚度逐漸增厚,在重慶南川-武隆地區(qū),厚度可達(dá)60-100m以上,具較好的頁(yè)巖氣勘探潛力。(4)通過(guò)有機(jī)地球化學(xué)分析,黔北地區(qū)上奧陶統(tǒng)五峰組-下志留統(tǒng)龍馬溪組富有機(jī)質(zhì)泥巖主要分布于正安-務(wù)川以北的地區(qū),有機(jī)碳含量以2%~6%為主;干酪根顯微組分中以腐泥無(wú)定形體及腐泥碎屑體為主,干酪根類型以I型為主,次為II1型;泥巖熱演化程度與地層沉積中心相對(duì)應(yīng),Ro值分布在1.5%~2.2%之間,處于高成熟-過(guò)成熟早期階段,以生成裂解氣、干氣為主。這些基礎(chǔ)數(shù)據(jù)均表明了黔北北部地區(qū)五峰組-龍馬溪組富有機(jī)質(zhì)泥巖具有較好的頁(yè)巖氣生烴潛力。(5)儲(chǔ)層試驗(yàn)說(shuō)明,黔北地區(qū)上奧陶統(tǒng)五峰組-下志留統(tǒng)龍馬溪組頁(yè)巖氣儲(chǔ)層具有高脆性礦物含量、高比表面、低孔-超低滲、微孔隙和裂縫較為發(fā)育的特點(diǎn)。通過(guò)儲(chǔ)層潤(rùn)濕性、儲(chǔ)層敏感性和巖石力學(xué)性質(zhì)試驗(yàn),初步分析了儲(chǔ)層改造過(guò)程中可能出現(xiàn)的損害及巖石力學(xué)參數(shù)。五峰-龍馬溪組富有機(jī)質(zhì)泥巖親水、中等-中偏強(qiáng)水敏、強(qiáng)酸敏,與其儲(chǔ)層孔滲物性差、毛管壓力大有關(guān),實(shí)施壓裂改造前應(yīng)進(jìn)一步優(yōu)化儲(chǔ)層體系。(6)現(xiàn)場(chǎng)解析試驗(yàn)初步證實(shí)了五峰組-龍馬溪組富有機(jī)質(zhì)泥巖具有較好的含氣性,總含氣量一般大于1m3/t,最高可達(dá)4m3/t;巖芯微裂縫越發(fā)育,損失氣量+解析氣量越高,測(cè)錄井響應(yīng)增強(qiáng),進(jìn)而表明游離狀態(tài)的頁(yè)巖氣含量越高,相對(duì)完整段殘留氣含量較高,表明勘探“甜點(diǎn)”主要就是尋找微裂隙發(fā)育的富有機(jī)質(zhì)泥巖段。(7)首次針對(duì)性的建立了頁(yè)巖氣“保存系統(tǒng)”,探討了黔北地區(qū)區(qū)域蓋層分布、斷層發(fā)育程度、地層水類型、溫泉點(diǎn)分布及低溫?zé)嵋旱V床分布等因素與頁(yè)巖氣保存系統(tǒng)的關(guān)系;認(rèn)為黔北地區(qū)上奧陶統(tǒng)五峰組-下志留統(tǒng)龍馬溪組保存系統(tǒng)總體較優(yōu),有利保存區(qū)域主要分布在正安-務(wù)川-沿河以北的遠(yuǎn)離深斷裂的復(fù)向斜、地表出露二疊-三疊系地層的區(qū)域。(8)最后,以空間展布、生烴潛力、儲(chǔ)集特征、保存系統(tǒng)為基礎(chǔ),創(chuàng)建了頁(yè)巖氣“四元體系”,總結(jié)了黔北地區(qū)頁(yè)巖氣成藏富集條件及分布規(guī)律。從礦物組分、有機(jī)碳含量、密度、巖石物性等方面分析了富有機(jī)質(zhì)泥巖含氣量大小是多個(gè)因素綜合影響的結(jié)果。
[Abstract]:This paper focuses on the black rock system of the upper Ordovician of the upper Ordovician of the upper Ordovician and the Lower Silurian group in the Lower Silurian, through a systematic analysis of a large number of sections, drilling, test data and other data, and deeply studies the classification and naming scheme of the rich mudstone rock, the characteristics of organic geochemistry, reservoir characteristics, the control factors of the gas content, the preservation system and so on, and sum up the shale. Enrichment conditions and distribution characteristics of gas accumulation. (1) through the grain size analysis test, the main lithology of the upper Ordovician Xialong Maxi formation black rock series in the north of Guizhou Province is mainly mudstone. Through the analysis of rock mineral components, the main factors that are considered as organic carbon, quartz + feldspar, authigenic minerals, clay minerals, etc., are considered as the main factors of the naming. On the basis of this, the rock classification and naming scheme suitable for the upper Ordovician five peak of the upper Ordovician and Lower Silurian group in the Lower Silurian group is reestablished. (2) the sedimentary microfacies of the rich organic mudstones of the upper Ordovician Lower Ordovician and Lower Silurian Long Maxi formation of the upper Ordovician of the Northern Guizhou Province are divided on the basis of the rock assemblage, sedimentary structure and biological assemblage. The sedimentary microfacies paleogeographic map was compiled, and the favorable sedimentary microfacies and its macro distribution were determined. (3) the vertical and horizontal distribution of the rich organic mudstones of the upper Ordovician of the upper Ordovician and Lower Silurian formation of the Lower Silurian group in the north of Guizhou Province were grasped. The rich organic mudstone was mainly located in the lower part of the stratum, and the thickness was generally less than 20m; from south to north, The thickness of the rich shale is thickening, and in the South Sichuan - Wulong area, Chongqing, the thickness can be more than 60-100m. (4) through the organic geochemical analysis, the rich organic mudstone of the upper Ordovician of the upper Ordovician of the lower Ordovician and the Lower Silurian formation in the Lower Silurian group in the north of Guizhou Province is mainly distributed in the area north of Zheng an Wuchuan, and the content of organic carbon Based on 2%~6%, the main kerogen microcomponents are mainly rotten mud and slime detritus, and the type of kerogen is mainly I type and II1 type. The thermal evolution degree of the mudstone is corresponding to the sedimentary center, and the Ro value is distributed between 1.5%~2.2% and is in the high maturity and mature early stage, which can generate the cracked gas and dry gas. These basic data are the basic data. The five peaks of the northern part of Northern Guizhou, the rich shale of the long Ma Xi formation, have good hydrocarbon generation potential. (5) the reservoir tests show that the shale gas reservoir of the upper Ordovician of the upper Ordovician and Lower Silurian formation of the Lower Silurian group in the north of Guizhou Province has high brittle mineral content, high specific surface, low porosity and ultralow permeability, and the characteristics of pore gap and fracture more developed. Through the reservoir wettability, reservoir sensitivity and rock mechanical properties test, the possible damage and rock mechanics parameters in the process of reservoir reconstruction are preliminarily analyzed. The five peak Long Ma Xi formation is rich in hydrophilic, medium to medium strong water sensitivity and strong acid sensitivity. It is related to the poor porosity and permeability of the reservoir and the large pressure of the capillary. The reservoir system is optimized step by step. (6) the field analysis tests have preliminarily confirmed that the five peak group - the rich shale of the long Ma Creek formation has better gas content, the total gas content is generally greater than 1m3/t and up to 4m3/t, the more developed the core microcracks, the higher the amount of gas and the analytical gas, the more the response of the logging is, the more shale gas content in the free state is. High, relatively complete residual gas content is high, indicating that the exploration "dessert" is mainly to find the rich organic mudstone section of micro fissure development. (7) the "preservation system" of shale gas was established for the first time. The distribution of regional caprock, the degree of fault development, the type of formation water, the distribution of hot spring point and the distribution of low temperature hydrothermal deposit in the north of Guizhou Province were discussed. The relationship between the other factors and the shale gas preservation system is that the preservation system of the upper Ordovician of the upper Ordovician and Lower Silurian long MXI formation of the upper Ordovician in the north of Guizhou is generally superior, and the favorable preservation areas are mainly distributed in the complex syncline of the Wuchuan - Wuchuan - along the north of the river and the surface of the two - three - superimposed strata. (8) in the end, the space distribution and hydrocarbon generation On the basis of potential, reservoir characteristics and preservation system, the "four element system" of shale gas is created. The enrichment conditions and distribution rules of shale gas accumulation in the north of Guizhou are summarized. The results of the comprehensive influence of many factors are analyzed from the mineral composition, organic carbon content, density, rock physical property and so on.
【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2017
【分類號(hào)】：P618.13
[Abstract]:This paper focuses on the black rock system of the upper Ordovician of the upper Ordovician of the upper Ordovician and the Lower Silurian group in the Lower Silurian, through a systematic analysis of a large number of sections, drilling, test data and other data, and deeply studies the classification and naming scheme of the rich mudstone rock, the characteristics of organic geochemistry, reservoir characteristics, the control factors of the gas content, the preservation system and so on, and sum up the shale. Enrichment conditions and distribution characteristics of gas accumulation. (1) through the grain size analysis test, the main lithology of the upper Ordovician Xialong Maxi formation black rock series in the north of Guizhou Province is mainly mudstone. Through the analysis of rock mineral components, the main factors that are considered as organic carbon, quartz + feldspar, authigenic minerals, clay minerals, etc., are considered as the main factors of the naming. On the basis of this, the rock classification and naming scheme suitable for the upper Ordovician five peak of the upper Ordovician and Lower Silurian group in the Lower Silurian group is reestablished. (2) the sedimentary microfacies of the rich organic mudstones of the upper Ordovician Lower Ordovician and Lower Silurian Long Maxi formation of the upper Ordovician of the Northern Guizhou Province are divided on the basis of the rock assemblage, sedimentary structure and biological assemblage. The sedimentary microfacies paleogeographic map was compiled, and the favorable sedimentary microfacies and its macro distribution were determined. (3) the vertical and horizontal distribution of the rich organic mudstones of the upper Ordovician of the upper Ordovician and Lower Silurian formation of the Lower Silurian group in the north of Guizhou Province were grasped. The rich organic mudstone was mainly located in the lower part of the stratum, and the thickness was generally less than 20m; from south to north, The thickness of the rich shale is thickening, and in the South Sichuan - Wulong area, Chongqing, the thickness can be more than 60-100m. (4) through the organic geochemical analysis, the rich organic mudstone of the upper Ordovician of the upper Ordovician of the lower Ordovician and the Lower Silurian formation in the Lower Silurian group in the north of Guizhou Province is mainly distributed in the area north of Zheng an Wuchuan, and the content of organic carbon Based on 2%~6%, the main kerogen microcomponents are mainly rotten mud and slime detritus, and the type of kerogen is mainly I type and II1 type. The thermal evolution degree of the mudstone is corresponding to the sedimentary center, and the Ro value is distributed between 1.5%~2.2% and is in the high maturity and mature early stage, which can generate the cracked gas and dry gas. These basic data are the basic data. The five peaks of the northern part of Northern Guizhou, the rich shale of the long Ma Xi formation, have good hydrocarbon generation potential. (5) the reservoir tests show that the shale gas reservoir of the upper Ordovician of the upper Ordovician and Lower Silurian formation of the Lower Silurian group in the north of Guizhou Province has high brittle mineral content, high specific surface, low porosity and ultralow permeability, and the characteristics of pore gap and fracture more developed. Through the reservoir wettability, reservoir sensitivity and rock mechanical properties test, the possible damage and rock mechanics parameters in the process of reservoir reconstruction are preliminarily analyzed. The five peak Long Ma Xi formation is rich in hydrophilic, medium to medium strong water sensitivity and strong acid sensitivity. It is related to the poor porosity and permeability of the reservoir and the large pressure of the capillary. The reservoir system is optimized step by step. (6) the field analysis tests have preliminarily confirmed that the five peak group - the rich shale of the long Ma Creek formation has better gas content, the total gas content is generally greater than 1m3/t and up to 4m3/t, the more developed the core microcracks, the higher the amount of gas and the analytical gas, the more the response of the logging is, the more shale gas content in the free state is. High, relatively complete residual gas content is high, indicating that the exploration "dessert" is mainly to find the rich organic mudstone section of micro fissure development. (7) the "preservation system" of shale gas was established for the first time. The distribution of regional caprock, the degree of fault development, the type of formation water, the distribution of hot spring point and the distribution of low temperature hydrothermal deposit in the north of Guizhou Province were discussed. The relationship between the other factors and the shale gas preservation system is that the preservation system of the upper Ordovician of the upper Ordovician and Lower Silurian long MXI formation of the upper Ordovician in the north of Guizhou is generally superior, and the favorable preservation areas are mainly distributed in the complex syncline of the Wuchuan - Wuchuan - along the north of the river and the surface of the two - three - superimposed strata. (8) in the end, the space distribution and hydrocarbon generation On the basis of potential, reservoir characteristics and preservation system, the "four element system" of shale gas is created. The enrichment conditions and distribution rules of shale gas accumulation in the north of Guizhou are summarized. The results of the comprehensive influence of many factors are analyzed from the mineral composition, organic carbon content, density, rock physical property and so on.
【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2017
【分類號(hào)】：P618.13
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 俞劍華;方一亭;張大良;;陜西西鄉(xiāng)三郎鋪龍馬溪組的筆石[J];古生物學(xué)報(bào);1988年02期
2 蘇文博,何龍清,王永標(biāo),龔淑云,周湖云;華南奧陶-志留系五峰組及龍馬溪組底部斑脫巖與高分辨綜合地層[J];中國(guó)科學(xué)(D輯:地球科學(xué));2002年03期
3 劉樹(shù)根;馬文辛;LUBA Jansa;黃文明;曾祥亮;張長(zhǎng)俊;;四川盆地東部地區(qū)下志留統(tǒng)龍馬溪組頁(yè)巖儲(chǔ)層特征[J];巖石學(xué)報(bào);2011年08期
4 張春明;姜在興;郭英海;張維生;;川東南—黔北地區(qū)龍馬溪組地球化學(xué)特征與古環(huán)境恢復(fù)[J];地質(zhì)科技情報(bào);2013年02期
5 張小龍;李艷芳;呂海剛;閆建萍;妥進(jìn)才;張同偉;;四川盆地志留系龍馬溪組有機(jī)質(zhì)特征與沉積環(huán)境的關(guān)系[J];煤炭學(xué)報(bào);2013年05期
6 王適擇;李忠權(quán);郭明;李洪奎;;川南長(zhǎng)寧地區(qū)龍馬溪組頁(yè)巖裂縫發(fā)育特征[J];科學(xué)技術(shù)與工程;2013年36期
7 周懇懇;牟傳龍;梁薇;葛祥英;;湘西北龍山、永順地區(qū)龍馬溪組潮控三角洲沉積的發(fā)現(xiàn)——志留紀(jì)“雪峰隆起”形成的新證據(jù)[J];沉積學(xué)報(bào);2014年03期
8 劉樹(shù)根;王世玉;孫瑋;冉波;楊迪;羅超;葉sズ，
本文編號(hào)：2134909
本文鏈接：http://sikaile.net/kejilunwen/diqiudizhi/2134909.html
最近更新
教材專著
