寧武盆地構(gòu)造演化及其對頁巖氣成藏的控制
發(fā)布時間：2018-08-08 18:27
【摘要】：寧武盆地是山西省北部重要的含煤盆地,石炭-二疊紀與侏羅紀地層中富有機質(zhì)泥頁巖非常發(fā)育,為頁巖氣成藏提供了豐富的物質(zhì)基礎(chǔ)。研究寧武盆地構(gòu)造發(fā)育特征、演化規(guī)律、頁巖氣地質(zhì)特征及構(gòu)造演化對頁巖氣成藏的控制作用,對研究寧武盆地構(gòu)造演化及頁巖氣進一步勘探開發(fā)工作具有重要意義。本論文主要以板塊構(gòu)造理論為指導,在充分研究區(qū)域地質(zhì)構(gòu)造背景基礎(chǔ)上,運用傳統(tǒng)地質(zhì)調(diào)查方法,配合室內(nèi)構(gòu)造地質(zhì)學、模擬軟件運用等實驗手段,對寧武盆地主要地質(zhì)構(gòu)造幾何學特征、運動學特征及其形成機制特征展開了全面研究,并探討了地質(zhì)構(gòu)造演化對頁巖氣成藏及其賦存狀態(tài)的控制作用。主要獲得了如下幾點認識:(1)寧武地區(qū)的地層由下古生界寒武系至新生界第四系均有發(fā)育。區(qū)域目的層主要經(jīng)歷了海西期、印支期、燕山期、喜馬拉雅期等多期構(gòu)造旋回影響。(2)寧武盆地褶皺構(gòu)造主要為寧武-靜樂向斜,位于寧武盆地的中心;斷裂構(gòu)造主要分布在盆地東西兩緣,盆地內(nèi)部斷裂構(gòu)造相對較少;研究區(qū)節(jié)理走向主要以NE向、NEE向、NW向和近NS向為優(yōu)選方位,其次為NWW向。(3)寧武盆地構(gòu)造在空間展布上存在較大的差異。構(gòu)造演化存在多期次、多方向、多階段、多性質(zhì)的發(fā)育歷程。(4)寧武盆地中生代以來構(gòu)造演化史可分為五期:印支期近S-N向擠壓、燕山早-中期NW-SE向擠壓、燕山晚期近E-W向擠壓、四川期近S-N向擠壓和喜馬拉雅期新裂陷形成階段,其中鄂爾多斯盆地動力學及太行山隆升動力學對寧武盆地主體構(gòu)造動力學起著決定性控制作用。(5)研究區(qū)野外實測剖面目的層厚度介于30~100 m;TOC介于0.11~7.87%,平均值1.92%;有機質(zhì)成熟度(Ro)均0.5%。目的層主要經(jīng)歷了五個沉積埋藏階段:海西-印支早期的快速埋藏階段、印支末期的快速抬升階段、燕山早-中期的快速埋藏階段、燕山晚期的緩慢褶皺隆升階段、四川期-喜馬拉雅期的快速抬升剝蝕階段。有機質(zhì)熱演化主要經(jīng)歷了三個階段:印支早-中期的快速埋藏演化階段、印支末期抬升停止演化階段和燕山早-中期進一步演化階段,研究區(qū)有機質(zhì)演化主要定型于燕山早-中期末期,且該期也是頁巖氣主要成藏期。寧武盆地東緣斷裂存在構(gòu)造負反轉(zhuǎn)作用,生成的烴類氣體大量逸散;西緣逆沖斷裂帶和向斜核部為頁巖氣成藏提供了封堵和圈閉作用,形成良好的構(gòu)造頁巖氣藏。
[Abstract]:Ningwu Basin is an important coal-bearing basin in the north of Shanxi Province. Organic matter rich mud shale is very developed in Carboniferous Permian and Jurassic strata which provides rich material basis for shale gas accumulation. It is of great significance to study the tectonic evolution of Ningwu Basin and the further exploration and development of shale gas. Based on the theory of plate tectonics, based on the full study of the regional geological structure background, this paper uses the traditional geological survey method, the laboratory tectonics and simulation software, and so on. The geometries, kinematics and formation mechanism of main geological structures in Ningwu Basin are studied, and the controlling effect of geological tectonic evolution on the formation and occurrence of shale gas reservoirs is discussed. The main results are as follows: (1) the strata of Ningwu area are developed from Lower Paleozoic Cambrian to Cenozoic Quaternary. The regional target layer mainly experienced several tectonic cycles, such as Hercynian, Indosinian, Yanshanian and Himalayan epoch. (2) the fold structure of Ningwu basin is mainly Ningwu-Jingle syncline, which is located in the center of Ningwu basin; The fault structure mainly distributes in the east and west margin of the basin, and the fault structure in the basin is relatively few, the strike of the joint in the study area is mainly in the NE-NE direction and the NW direction and the near NS direction as the preferred orientation. Secondly, NWW direction. (3) there are great differences in spatial distribution of Ningwu basin. There are many stages, directions, stages and properties of tectonic evolution. (4) the history of tectonic evolution in Ningwu Basin since Mesozoic can be divided into five periods: Indosinian near-S-N compression, early to middle Yanshanian NW-SE compression, late Yanshanian near E-W compression, and so on. The near S-N compression stage in Sichuan and the new rift formation stage in Himalayan period, The dynamics of Ordos Basin and uplift of Taihang Mountain play a decisive role in controlling the main structural dynamics of Ningwu Basin. (5) the thickness of target layer measured in the field profile in the study area is between 30 ~ 100mTOC between 0.11 and 7.87, with an average value of 1.92, and the maturity of organic matter is 0.5. The target layer has undergone five sedimentary burial stages: the rapid burial stage in the early Hercynian-Indosinian period, the rapid uplift stage in the late Indosinian period, the rapid burial stage in the early Yanshanian period and the rapid burial stage in the middle Yanshanian period, and the slow fold uplift stage in the late Yanshanian period. The rapid uplift and denudation stage of Sichuan and Himalayan periods. The thermal evolution of organic matter has experienced three stages: the rapid burial evolution stage of Indosinian early to middle period, the uplift and stop evolution stage of late Indosinian period and the further evolution stage of Yanshanian early to middle period. The evolution of organic matter in the study area was mainly defined in the late Yanshanian early to middle stage, and this stage was also the main reservoir forming stage of shale gas. The faults in the eastern margin of Ningwu basin have negative structural inversion and large amount of hydrocarbon gases, and the western margin thrust fault zone and syncline core provide plugging and trap for the formation of shale gas and form a good structural shale gas reservoir.
【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】：2015
【分類號】：P618.13
本文編號：2172644
[Abstract]:Ningwu Basin is an important coal-bearing basin in the north of Shanxi Province. Organic matter rich mud shale is very developed in Carboniferous Permian and Jurassic strata which provides rich material basis for shale gas accumulation. It is of great significance to study the tectonic evolution of Ningwu Basin and the further exploration and development of shale gas. Based on the theory of plate tectonics, based on the full study of the regional geological structure background, this paper uses the traditional geological survey method, the laboratory tectonics and simulation software, and so on. The geometries, kinematics and formation mechanism of main geological structures in Ningwu Basin are studied, and the controlling effect of geological tectonic evolution on the formation and occurrence of shale gas reservoirs is discussed. The main results are as follows: (1) the strata of Ningwu area are developed from Lower Paleozoic Cambrian to Cenozoic Quaternary. The regional target layer mainly experienced several tectonic cycles, such as Hercynian, Indosinian, Yanshanian and Himalayan epoch. (2) the fold structure of Ningwu basin is mainly Ningwu-Jingle syncline, which is located in the center of Ningwu basin; The fault structure mainly distributes in the east and west margin of the basin, and the fault structure in the basin is relatively few, the strike of the joint in the study area is mainly in the NE-NE direction and the NW direction and the near NS direction as the preferred orientation. Secondly, NWW direction. (3) there are great differences in spatial distribution of Ningwu basin. There are many stages, directions, stages and properties of tectonic evolution. (4) the history of tectonic evolution in Ningwu Basin since Mesozoic can be divided into five periods: Indosinian near-S-N compression, early to middle Yanshanian NW-SE compression, late Yanshanian near E-W compression, and so on. The near S-N compression stage in Sichuan and the new rift formation stage in Himalayan period, The dynamics of Ordos Basin and uplift of Taihang Mountain play a decisive role in controlling the main structural dynamics of Ningwu Basin. (5) the thickness of target layer measured in the field profile in the study area is between 30 ~ 100mTOC between 0.11 and 7.87, with an average value of 1.92, and the maturity of organic matter is 0.5. The target layer has undergone five sedimentary burial stages: the rapid burial stage in the early Hercynian-Indosinian period, the rapid uplift stage in the late Indosinian period, the rapid burial stage in the early Yanshanian period and the rapid burial stage in the middle Yanshanian period, and the slow fold uplift stage in the late Yanshanian period. The rapid uplift and denudation stage of Sichuan and Himalayan periods. The thermal evolution of organic matter has experienced three stages: the rapid burial evolution stage of Indosinian early to middle period, the uplift and stop evolution stage of late Indosinian period and the further evolution stage of Yanshanian early to middle period. The evolution of organic matter in the study area was mainly defined in the late Yanshanian early to middle stage, and this stage was also the main reservoir forming stage of shale gas. The faults in the eastern margin of Ningwu basin have negative structural inversion and large amount of hydrocarbon gases, and the western margin thrust fault zone and syncline core provide plugging and trap for the formation of shale gas and form a good structural shale gas reservoir.
【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】：2015
【分類號】：P618.13
【參考文獻】
相關(guān)期刊論文 前10條
1 劉和甫,夏義平,殷進垠,尚培樂;走滑造山帶與盆地耦合機制[J];地學前緣;1999年03期
2 劉和甫;伸展構(gòu)造及其反轉(zhuǎn)作用[J];地學前緣;1995年01期
3 朱光,劉國生,牛漫蘭,宋傳中,王道軒;郯廬斷裂帶晚第三紀以來的淺部擠壓活動與深部過程[J];地震地質(zhì);2002年02期
4 聶海寬;張金川;張培先;宋曉薇;;福特沃斯盆地Barnett頁巖氣藏特征及啟示[J];地質(zhì)科技情報;2009年02期
5 周平華;吳波;程龍;;重力勘探及其在石油勘探與開發(fā)中的應(yīng)用[J];硅谷;2009年08期
6 潘仁芳;黃曉松;;頁巖氣及國內(nèi)勘探前景展望[J];中國石油勘探;2009年03期
7 周建勛;邵震杰;王桂梁;;煤光性組構(gòu)的實驗變形研究[J];科學通報;1993年02期
8 姜波,金法禮,周強,王文俠;煤鏡質(zhì)組反射率光性組構(gòu)變形實驗研究[J];煤田地質(zhì)與勘探;1997年02期
9 李新景;胡素云;程克明;;北美裂縫性頁巖氣勘探開發(fā)的啟示[J];石油勘探與開發(fā);2007年04期
10 徐士林;包書景;;鄂爾多斯盆地三疊系延長組頁巖氣形成條件及有利發(fā)育區(qū)預(yù)測[J];天然氣地球科學;2009年03期
相關(guān)博士學位論文 前1條
1 楊明達;松遼盆地南部構(gòu)造演化與油氣聚集[D];中國地質(zhì)大學（北京）;2005年
，本文編號：2172644
本文鏈接：http://sikaile.net/kejilunwen/diqiudizhi/2172644.html
最近更新
教材專著
