中国致密油（tight oil）的地质特征与资源潜力（英文版）课件

China Tight Oil: Geological Controls and Resource Potential Jia Chengzao Academician of the Chinese Academy of Sciences April, 2012 Contents 1、Tight oil in China 2、Tight oil in dolomitic rock of Lucaogou Formation of Permian in Junggar basin 3、Tight oil in sandstone of Chang 6 and Chang 7 of Yanchang formation(Triassic) in Ordos basin 4、Tight oil in Jurassic of Sichuan basin, Songliao basin and Bohai Bay basin 5、Resource potential The large area distribution of tight reservoir： 10%、K 1mD Wide distribution of high maturity of the sapropel type good source bed：Type or of kerogen、 average TOC 1%、Ro1.01.3 %、API 40 Continuous distribution of the intimate contact coextensive layer system of tight reservoir and oil source rock，with no appreciable trap boundary 1) Definition of Tight oil Accumulation model of tight oil structural hydrocarbon reservoir Shale gas Tight oil Tight oil oil-generating window gas-generating window oil-generating window gas-generating window legend Sand body of gravity flow glutenitesandstone fine sandstone siltstonelimestone muddy Dolomitic limestone limestone dolomitecoquina Euxinic argillutite organic lean argillutite Tight oil of The United States According to：The Truth about Oil，Bryan Walsh, Time, Vol.179 No.14，April 9，2012 Ordos basin 塔里木 羌塘 Realistic area Potential area Tuha basin Caidamu basin Distribution of main tight oil basins in China Junggar basin Santanghu basin Yanchang formation of Ordos basin Chang 7 Fm.(Permian): 337 wells of Commercial oil flow; reserves: 4.2 million tons Permian of Junggar basin Pingdiquan Fm.(Permian) 3 wells of commercial oil flow， favorable area: 1500km2 Lower-middle Jurassic of Sichuan basin Jurassic, Proved: 80 million tons，3P reserves: 160 million tons Shahejie formation of Bohai Bay basin Well Shugu165: Es3 BOPD:7m Shahejie Fm.,Qikou Sag: 3P reserves: 300 million tons Tight oil, in the future, is the main exploration domain of unconventional petroleum in China Sichuan basin Kunming Wuhan Nanning Guangzhou Beijing Bohai Bay basin Zhenzhou Harbin Songliao basin Shenyang Qingshankou formation of Songliao basin Well Yuanping1, F reservoir BOPD:95m3 Permeability /mD 0.001 0.1 0.01 1000 100 10 1 0.5 1002025 100202574 74 Reservoir Standards K 20m, depth 30m, depth 200m:806k m2 Ji25 Comprehensive column of Lucaogou Fm., well Ji174 2% 4446 0.1 最好 成熟 好 好 Best MatureGood Good The area of the thickness of hydrocarbon source rock greater than 200m is 806km2 Ro=0.5%-1.3%，mainly of type I and type II1 Fm. thickness: 300700m Wucaiwan Sag Favorable area: 100km2 Fm. thickness: 350750m Jimusar Sag Four favorable areas，Exploration area 1600km2， Resource quantity 1.5 billion tons Dolomitic rock distribution of Lucaogou Fm. and Pingdiquan Fm.,eastern Junggar basin Jimusar Sag Favorable area: 900km2 Fm. thickness: 300350m Sazhang zone of bruchfalten Favorable area: 240km2 Fm. thickness: 400800m Shishugou Sag Favorable area: 360km2 Contents 1、Tight oil in China 2、Tight oil in dolomitic rock of Lucaogou Formation of Permian in Junggar basin 3、Tight oil in sandstone of Chang 6 and Chang 7 of Yanchang formation(Triassic) in Ordos basin 4、Tight oil in Jurassic of Sichuan basin, Songliao basin and Bohai Bay basin 5、Resource potential meandering rive River Yanchang Formation Upper Triassic Triassic Delta braid river braid river meandering rive 3、Tight oil in sandstone of Chang 6 and Chang 7 of Yanchang formation(Triassic) in Ordos basin Sequence stratigraphic column of Yanchang Fm.,Yanhe profile Hydrocarbon source rock distribution of Chang 7 Fm., Ordos basin Middle Triassic The central of the lake basin where develop tight sandstone oil of deep lake gravity flow and delta of Chang6 and Chang7 Fm. Chang 7 which have proved oil area 7000km2，reserves 4.2108t，reserves abundance 60104t/km2 Source rock of Chang 7 Fm.:Area 6.15104km2，Thickness：10-50m，TOC：2.0-20%,Ro:0.7-1.0% ThickStratum Ss. Sr. Fm. Seg depositional system Subfa- facies cies Lake River Delta front semi-deep lake front Lake semi-deep lake Delta plain River eustatic sea level Meare semi-deep lake deeplake Level 3 of sequence Systems Sequence Sequence tracts Boundary Lithologic Section Ch.1 braid river Ch.2 Ch.3 Ch.4 +5 Ch.6 plain Ch.7 Ch.8 Ch.9 Ch.10 10.000 0.001 0.010 0.100 1.000 Depth (m) 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Plane map of the permeability of chang7 in Longdong area 2293 2295 2297 2299 2301 2303 2305 2307 2309 2311 Porosity and permeability Vertical distribution of chang72of well zhuang65 渗透率（md) 0.010.10.001 10 1 permeability(mD) 05101520porosity（） Physical properties vary widely in horizontal direction, have more intercalation in vertical direction with strong heterogeneity Frequency（） Frequency（%） Reservoir space being dominated by dissolved pores，porosity 410%，permeability4m Oil-bearing sand body Tight sandstone oil reservoir of Chang6 Trap area ：4932.6km2 西233井区 宁33井区 1、Tight oil in China 2、Tight oil in dolomitic rock of Lucaogou Formation of Permian in Junggar basin 3、Tight oil in sandstone of Chang 6 and Chang 7 of Yanchang formation(Triassic) in Ordos basin 4、Tight oil in Jurassic of Sichuan basin, Songliao basin and Bohai Bay basin 5、Resource potential Contents Jurassic Tight Oil of Sichuan Basin Five producing pay: J1dn, J1l , J1d, J1z, J2s Composite Columnar Section of Jurassic Oil Reservoir in Central Regions of Sichuan Basin Profitable Area ：4104Km2 Productive Member：J1dn, J1l , J1d, J1z, J2s Amount of Drilling: 1832 DiscoveryandProved Reserves: 6 oil and gas field. Proved 81.18 million tons, of which about 92.8% for J1dn （Xinan Oil Company，2011） P ( ),P D D D T /C D Two Kinds of Reservoir Space: Fracture and Pore, matrix Pore Filling with Oil widespread：12104km2 ，J1dn, J1l , J1d, J1z, J2s Large thickness：single layer 540m，Cumulative thickness: over 200m 介壳灰岩，孔洞方解石胶结物中的包裹体， 蓝白色荧光，狮3井 ，大一段，2791.10m 10 10 10 2 1 0 -1 0 1 2 3 10 10 10 10 10 TD/CD Pressure build up curve of J1dn oil reserver, well peng10 thickness 30-220mRo=0.9-1.5% Widespread source rock, huge potential resource Distribution area：8.3104km2 Net thickness：30-220m Organic content：TOC, 0.6-1.5% Total hydrocarbon(ppm)：1074-1484 Organic type： Maturity：Ro, 0.6-1.5% TOC=0.6-1.5% Effective source rocks （LIANG Digang,etc.2011.12) Well Chuanshi30, Oil 120t/d;Gas 80104m3/d Commercial oil and gas flow:5 well(Longgang) Well Longgang 9,80.6t/d Ro1.3% TOC1% Discovered 6 oil and gas field，proved reserve75.35M tons， prognostic reserves 10.64M tons Shell limestone 1%， K0.1mD Favorable place for prospecting3.8104km2， resource 800-900M tons shell limestone of J1dn is the main oil layer in the middle of sichuan basin TOC1% Well Gong16 144.4t/d Well Guan 9 90.6m3/d Silt-fine stone of J2s1has been made great found Ro1.3% Discovered 1 oil field， proved reserve 5.83M tons， controlled reserve 23.54M tons，prognostic reserves 23.93M tons Silt-fine stone: 1%， K0.1mD Favorable place for prospecting 3.6104km2， resource 400-500M tons resources 500M tons K1qn1 of southern Qijia： Profitable area 2800km2， Estimated resources 400M tons FY reservoir of gaojia-chaganpao- daqingzijing： Profitable area 6000km2， Estimated resources 500B tons Qijia-Gulong gaojia- chaganpao- daqingzijing K1qn1,southern Qijia Tight sandsone oil of Lower Crataceou in Central DepressedArea of Songliao Basin Comprehensive evaluation map of FY reservoir in Songliao basin Profitable area ： 1.5104Km2 Resource ：1.8-2.0B tons Reserves：controlled reserve 2.2B tons， prognostic reserves 0.44B tons Favorable place for prospecting ： FY reservoir of Qijia-Gulong： Profitable area 4000km2，Estimated Tight oil of Shahejie Fm of Eogene in bohai bay basin Profitable area ：8000km2 Resource：600-800M tons Reserves：proved reserve 62M tons, controlled and prognostic reserves 250M tons Favorable place for prospecting ： Dolomite and fine sandstone of Es1 in Qikou sag： profitable area in Qibei- Qinan slope 1500km2, proved reserve 50M tons, controlled and prognostic reserves 230M tons, Estimated resources 300M tons Sandstone of western sag : profitable area 500km2，proved reserve 11.06M tons, controlled reserves 13.7M tons, Estimated resources 200M tons Lacustrine carbonatite of Raoyang sag： profitable area in Lixian slope 200km2， Estimated resources 100M tons 港深33滨深24 滨深16x1港深78滨海8 板2上 板2下 港深33滨海8井反演剖面 Composite figure of source rocks and reservoir of Shahejie formation Qibei-Qinan slope Lixian slope western sag 致密储层分布区 1、Tight oil in China 2、Tight oil in dolomitic rock of Lucaogou Formation of Permian in Junggar basin 3、Tight oil in sandstone of Chang 6 and Chang 7 of Yanchang formation(Triassic) in Ordos basin 4、Tight oil in Jurassic of Sichuan basin, Songliao basin and Bohai Bay basin 5、Resource potential Contents Ordos basin 塔里木 羌塘 Realistic area Potential area Tuha basin Caidamu basin Distribution of main tight oil basins in China Junggar basin Santanghu basin Yanchang formation of Ordos basin Chang 7 Fm.(Permian): 337 wells of Commercial oil flow; reserves: 4.2 million tons Permian of Junggar basin Pingdiquan Fm.(Permian) 3 wells of commercial oil flow， favorable area: 1500km2 Lower-middle Jurassic of Sichuan basin Jurassic, Proved: 80 million tons，3P reserves: 160 million tons Shahejie formation of Bohai Bay basin Well Shugu165: Es3 BOPD:7m Shahejie Fm.,Qikou Sag: 3P reserves: 300 million tons Tight oil, in the future, is the main exploration domain of unconventional petroleum in China Sichuan basin Kunming Wuhan Nanning Guangzhou Beijing Bohai Bay basin Zhenzhou Harbin Songliao basin Shenyang Qingshankou formation of Songliao basin Well Yuanping1, F reservoir BOPD:95m3 ResourceAssessment byAnaloging Richness Factor Parameters Area，km2 Minimum Value 50 Reservoir Source Rock Thickness,m Porosity， % Toc，% Maturity （Ro，%） 15 6 1 0.6-1.3 Tectonic Setting Surface Indication of Oil and Gas Depth，m Relatively stable favorable discovered 4000 Criteria for Profitable Area of Tight Sandston e Criteria for Profitable Area of Tight Limestone Parameters Area，km2 Minimum Value 100 Reservoir Source Rock Thickness,m Porosity， % Toc，% Maturity （Ro，%） 5 3 1 0.6-1.3 Tectonic Setting Surface Indication of Oil and Gas Depth，m Relatively stable favorable discovered 4000 Basin