發(fā)布時(shí)間：2018-03-28 03:33

  本文選題：渝東北　切入點(diǎn)：牛蹄塘組　出處：《成都理工大學(xué)》2017年碩士論文

【摘要】：渝東北地區(qū)下寒武統(tǒng)牛蹄塘組具有良好的頁巖氣資源和較大的勘探潛力。通過野外調(diào)查采樣、鉆井巖心觀察、地震數(shù)據(jù)實(shí)測以及測試分析等方法,對研究區(qū)下寒武統(tǒng)牛蹄塘組黑色富有機(jī)質(zhì)頁巖沉積與儲(chǔ)層特征進(jìn)行了研究,取得了如下成果和認(rèn)識:1.厘清了渝東北地區(qū)下寒武統(tǒng)牛蹄塘組地層發(fā)育特征。牛蹄塘組地層主要分布在城口-巫溪一帶。巖性以灰黑色、黑色炭質(zhì)頁巖為主,夾黃色薄-中厚層狀粉砂巖。牛蹄塘組地層厚度變化范圍較大,從100m到600m均有。牛蹄塘組的地層接觸關(guān)系為上覆明心寺組地層,下伏震旦系燈影組地層。2.明確了渝東北地區(qū)下寒武統(tǒng)牛蹄塘組富有機(jī)質(zhì)頁巖的沉積環(huán)境。牛蹄塘組沉積環(huán)境主要為陸棚環(huán)境,從下而上由深水陸棚向淺水陸棚過渡�？v向上,巖性由下而上依次為炭質(zhì)頁巖、硅質(zhì)頁巖、炭質(zhì)與粉砂質(zhì)頁巖互層和粉砂質(zhì)頁巖。橫向上,總體上西北高、東南低,水體自西北向東南逐漸加深,由陸棚淺水海域向陸棚深水海域過渡。3.分析了研究區(qū)牛蹄塘組富有機(jī)質(zhì)頁巖的儲(chǔ)集性能。牛蹄塘組黑色富有機(jī)質(zhì)頁巖主要集中在該組的下段,脆性礦物豐富,以石英、長石及黃鐵礦為主,其含量占了碎屑礦物含量的41%~75%。主要發(fā)育粒內(nèi)孔、粒間孔、裂縫、有機(jī)質(zhì)孔、晶間孔、黏土礦物層間孔等孔隙類型�？紫抖绕骄鶠�2.42%,分布在1.18%~3.24%之間。滲透率較低,分布在(0.0001~0.01)×10~(-3)μm~2之間。裂縫發(fā)育區(qū),具有高值滲透率,孔滲相關(guān)性較差。4.圈出來研究區(qū)牛蹄塘組頁巖氣有利發(fā)育區(qū)。牛蹄塘組黑色富有機(jī)質(zhì)頁巖所含有機(jī)質(zhì)類型以I型為主,有機(jī)質(zhì)總體屬于過成熟階段(普遍Ro2%),厚度主要分布在40~120m之間。根據(jù)最新頁巖氣評價(jià)標(biāo)準(zhǔn),從富有機(jī)質(zhì)頁巖厚度、有機(jī)質(zhì)豐度、有機(jī)質(zhì)成熟度和礦物組成等各方面分析,優(yōu)選出2個(gè)下寒武統(tǒng)牛蹄塘組頁巖氣有利區(qū),分別為:明通-高觀一帶、龍臺-中梁一帶。
[Abstract]:The Niutetang formation of Lower Cambrian in northeast Chongqing has good shale gas resources and great exploration potential. Through field investigation and sampling, drilling core observation, seismic data measurement and test analysis, etc. The depositional and reservoir characteristics of black organic matter rich shale in Niutetang formation of Lower Cambrian in the study area were studied. The results are as follows: 1. The stratigraphic development characteristics of Niutetang formation of Lower Cambrian in northeast Chongqing are clarified. The strata of Niutetang formation are mainly distributed in Chengkou-Wuxi area. The lithology of Niutetang formation is mainly gray-black and black carbonaceous shale. The formation thickness of Niulitang formation varies from 100m to 600m. The contact relation of Niutetang formation is that of the upper overlying Mingxinsi formation. The sedimentary environment of the organic shale rich in the Niulitang formation of the Lower Cambrian in the northeast of Chongqing is defined. The sedimentary environment of the Niulitang formation is mainly a shelf environment, which is transitioned from the deep shelf to the shallow water shelf from the bottom to the top. The lithology from bottom to top is carbonaceous shale, siliceous shale, carbonaceous and silty shale interbedded and silty shale. Horizontally, the northwest is high, the southeast is low, and the water body deepens gradually from northwest to southeast. From shallow water area of shelf to deep sea area of shelf. 3. The reservoir performance of organic shale rich in Niulitang formation in the study area is analyzed. The black organic matter rich shale of Niulitang formation is mainly concentrated in the lower part of the formation, which is rich in brittle minerals and is composed of quartz. Feldspar and pyrite are dominant, and their contents account for 41% of the content of clastic minerals. They mainly develop intragranular pore, intergranular pore, crack, organic pore, intergranular pore, Pore types such as interlayer pores in clay minerals. The average porosity is 2.42%, which is between 1.18% and 3.24%. The permeability is relatively low, distributed between 0.0001 (0.01) 脳 10 ~ (-3) 渭 m ~ (-2). The correlation of porosity and permeability is poor. 4. The favorable development area of shale gas in Niulitang formation is formed in the study area. The organic matter type of black organic matter rich shale in Niulitang formation is mainly type I. The organic matter belongs to the overmature stage in general (the thickness of which is mainly distributed in the range of 40 ~ 120m). According to the latest evaluation criteria of shale gas, this paper analyzes the thickness, abundance, maturity and mineral composition of organic matter shale. Two favorable areas of shale gas in Niutetang formation of Lower Cambrian are selected as follows: Mingtong-Gaoguan area, Longtai-Zhongliang area.
【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：P618.13

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 鄒才能;董大忠;王玉滿;李新景;黃金亮;王淑芳;管全中;張晨晨;王紅巖;劉洪林;拜文華;梁峰;吝文;趙群;劉德勛;楊智;梁萍萍;孫莎莎;邱振;;中國頁巖氣特征、挑戰(zhàn)及前景(二)[J];石油勘探與開發(fā);2016年02期

2 鄒才能;董大忠;王玉滿;李新景;黃金亮;王淑芳;管全中;張晨晨;王紅巖;劉洪林;拜文華;梁峰;吝文;趙群;劉德勛;楊智;梁萍萍;孫莎莎;邱振;;中國頁巖氣特征、挑戰(zhàn)及前景(一)[J];石油勘探與開發(fā);2015年06期

3 馬施民;鄒曉艷;朱炎銘;李賢慶;趙佩;;川南龍馬溪組筆石類生物與頁巖氣成因相關(guān)性研究[J];煤炭科學(xué)技術(shù);2015年04期

4 董大忠;高世葵;黃金亮;管全中;王淑芳;王玉滿;;論四川盆地頁巖氣資源勘探開發(fā)前景[J];天然氣工業(yè);2014年12期

5 李茗;吳潔;;美國密歇根盆地安特里姆頁巖氣區(qū)帶成藏特征[J];新疆石油地質(zhì);2014年04期

6 李建青;高玉巧;花彩霞;夏在連;;北美頁巖氣勘探經(jīng)驗(yàn)對建立中國南方海相頁巖氣選區(qū)評價(jià)體系的啟示[J];油氣地質(zhì)與采收率;2014年04期

7 王玉滿;董大忠;楊樺;何伶;王世謙;黃金亮;蒲泊伶;王淑芳;;川南下志留統(tǒng)龍馬溪組頁巖儲(chǔ)集空間定量表征[J];中國科學(xué):地球科學(xué);2014年06期

8 鄧慶杰;胡明毅;;上揚(yáng)子地區(qū)下志留統(tǒng)龍馬溪組頁巖氣成藏條件及有利區(qū)預(yù)測[J];科學(xué)技術(shù)與工程;2014年17期

9 董立;趙旭;涂乙;;頁巖氣成藏條件與評價(jià)體系[J];石油地質(zhì)與工程;2014年01期

10 魏威;王飛宇;;頁巖油氣資源體系成藏控制因素與儲(chǔ)層特征[J];地質(zhì)科技情報(bào);2014年01期

相關(guān)博士學(xué)位論文 前1條

1 劉偉偉;江西修武盆地寒武系—志留系黑色頁巖儲(chǔ)層特征及成藏條件研究[D];成都理工大學(xué);2015年

相關(guān)碩士學(xué)位論文 前3條

1 胡峰;川東北地區(qū)飛仙關(guān)組構(gòu)造演化與油氣成藏關(guān)系研究[D];西南石油大學(xué);2015年

2 楊哲;川東南綦江地區(qū)構(gòu)造特征與油氣聚集研究[D];成都理工大學(xué);2014年

3 李輝;川東南下古生界烴源巖特征研究[D];成都理工大學(xué);2013年

，

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