中国页岩气资源潜力及开发基础.pdf

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1、中国页岩气资源潜力及开发基础ResourcePotentialandDevelopmentFoundationofShaleGasinChina中国地质大学（北京）ChinaUniversityofGeosciences,Beijing张金川樊太亮于炳松ZhangJinchuanFanTailiangYuBingsong提要Outline1页岩气Shalegas2中国页岩气资源潜力ResourcePotentialofShaleGasinChina3中国页岩气开发基础DevelopmentFoundationo

2、fShaleGasinChina4结论Conclusions页岩气：主体上以吸附和游离状态赋存于泥、页岩地层中的天然气聚集。Shalegas,orgasshale,istheadsorbedorfreegasremainedinsourcerocksasshaleormudstone,eveninpeliticsiltstoneorsiltpelite.①②③页岩致密砂岩常规砂岩含气裂缝带天然气ShaleConventionalGas-bearingNaturalgasTightsandssandstonefr

3、acture两种页岩气类型Classificationofshalegas类型直接型间接型TypeDirect-typeIndirect-type干酪根类型ⅢⅠ、ⅡKerogentype成熟度底限Ro≥0.4%Ro≥1.2%Maturitythreshold生气机理生物化学热裂解GasgenerationBiochemistryThermalcracking孔渗性高低PorousityandpermibilityHighLow含气量低高GascontentLowHigh压力低高PressureLowHigh埋藏

4、深度浅深BurieddepthShallowDeep页岩气研究意义ResearchSignificancesforShaleGas（1）普遍意义：滞留是主体Universality:remainingisthemainbody（2）复合机理：游离+吸附Mechanism:composingbyfreedomandabsorption（3）经济价值：成本并不昂贵Economic:costingisnotexpensive（4）应用前景：突破口和热点Prospects:breakthroughandhottopic

5、提要Outline1页岩气Shalegas2中国页岩气资源潜力ResourcePotentialofShaleGasinChina3中国页岩气开发基础DevelopmentFoundationofShaleGasinChina4结论Conclusions中国板块与含油气盆地PlatesandPetroliferousBasinsinChina中国板块、古生界与含油气盆地Plates,PalaeozoicandPetroliferousBasins中国页岩气类型TypesofshalegasinChina比较间接

6、型直接型ComparasionDirectIndirect地质时代下古生界-上古生界中生界-新生界AgePaleozoicMesozoic-Cenozoic沉积环境海相（黑色页岩）、湖相滨浅湖等陆相（暗色泥页岩）SedimentaryFaciesMarineandContinentalContinental伴生地层海相碳酸盐岩、碎屑岩陆相碎屑岩AccompanionlayerCarbonateandclasticrocksClasticrocks有机质类型Ⅰ、Ⅱ1Ⅱ2、ⅢOrganictype热演化程度成熟-过

7、成熟低熟-高成熟organicmattermaturationMaturatedtoovermaturatedUnmaturatedtohihg-maturate天然气成因热裂解、生物再作用（Ro>1.25%）生物、热解（Ro>0.4%）GenerationThermalcrackingBiogeneration地层压力低压-常压常压-高压PressureLowtonormalNormaltohigh发育规模区域分布，局部被现今盆地叠覆局限，受现今盆地范围影响较大ScaleRegionallyLocally南方

8、、东北、西北、青藏西北、华北和东北主体分布区域South,Northeast,NorthwestandNorthwest,NorthandNortheastDistributionQingzangofChinaChina根缘气、煤层气伴生产物原油、油页岩、残余沥青Source-contactinggasandByproductionCrudeoil,oilshale,bitumenan