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Structure of weathered clastic crust and its petroleum potential

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Science china Earth Sciences 2014年第12期57卷 3015-3026页

作者： zou caineng HOU LianHua YANG Fan YANG Chun {2. shizhen YUAN XuanJun ZHU RuKai research institute of Petroleum {2. & development

Weathered clastic crust can be subdivided into weathered clay and leached zone in terms of variable weathering of different minerals and mobility of weathered *** the basis of clastic outcrops and well cores in the Junggar Basin,the dark red Fe-rich weathered clay is formed in an arid environment,whereas the light blue Al-rich weathered clay under humid *** to the geochemical analysis,a new weathering index for weathered clastic crust is built mainly on Fe and Al contents,accurately indicating the weathered clay,sandy leached zone,and muddy leached zone in the Junggar *** breaking pressure of weathered clay is rather large,the same as that of normal muddy cap,effectively to seal oil or *** porosity of underlying leached zone is greatly enhanced by weathering and leaching,but its permeability is a function of clay mineral content,i.e.,the higher the clay content,the worse the *** crust provides effective sealing conditions for both top and bottom layers of a petroleum reservoir,and is important in the clastic hydrocarbon exploration.

关键词： structure of weathered crust weathering index Junggar Basin reservoir properties hydrocarbon exploration

Progress in china's Unconventional Oil & Gas exploration and {2. and Theoretical Technologies

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Acta Geologica Sinica(English Edition) 2015年第3期89卷 938-971页

作者： zou caineng YANG Zhi ZHU Rukai ZHANG Guosheng HOU Lianhua WU Song{2. {2. shizhen YUAN Xuanjun DONG Dazhong WANG Yuman WANG Lan HUANG Jinliang WANG Shufang petrochina research {2. of Petroleum exploration & development

The new century has witnessed a strategic breakthrough in unconventional oil ＆ *** accumulated in micro-/nano-scale pore throat shale systems has become an important domain that could replace current oil ＆ gas *** oil ＆ gas plays an increasingly important role in our energy *** gas,CBM,heavy oil and asphaltic sand have served as a key domain of exploration ＆ development,with tight oil becoming a ＇bright spot＇ domain and shale gas becoming a ＇hotspot＇ *** has made great breakthroughs in unconventional oil ＆ gas resources,such as tight gas,shale gas,tight oil and CBM,and great progress in oil shale,gas hydrate,heavy oil and oil *** has an estimated（2.3-2.3）×10~8t of unconventional oil resources and（890-12.0）×l0^（12.m^3 of gas *** has made a breakthrough for progress in unconventional oil ＆ gas *** progress achieved in fine-grained sedimentary studies related to continental open lacustrine basin large-scale shallow-water delta sand bodies,lacustrine basin central sandy clastic flow sediments and marine-continental fine-grained sediments provide a theoretical basis for the formation and distribution of basin central reservoir *** breakthroughs have been made in unconventional reservoir geology in respect of {2. methodology ＆ technology,multi-scale data merging and physical simulation of formation *** characterization of unconventional reservoirs via multi-method and multi-scale becomes increasingly popular and facilitates the rapid development of unconventional oil ＆ gas geological theory,method and *** formation of innovative,continuous hydrocarbon accumulation theory,the establishment of the framework of the unconventional oil ＆ gas geological theory system,and the determination of the implications,geological feature,formation mechanism,distribution rule and core technology of unconventional oil＆ gas geological study lays a theoretical foundation for ext

关键词： Unconventional oil and gas Unconventional Petroleum geology fine-grainedsedimentology unconventional reservoir geology "man-made reservoir" development micro-/nano- scalepore throat tight gas tight oil shale gas shale oil

On the connotation, challenge and significance of china’s “energy independence” strategy

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Petroleum exploration and development 2020年第2期47卷 449-462页

作者： zou caineng PAN Songqi ZHAO Qun research institute of Petroleum {2. & development PetroChina Beijing 100083 China

The world’s energy is in the "third major transformation period" from fossil energy to new energy, and all countries in the world have formulated energy development strategies. Through advanced deployment, the United States is about to achieve "energy independence" relying on "unconventional oil and gas revolution". china’s energy development is faced with four challenges:(1) The population base and economic development scale determine the "totally huge amount" of energy consumption;(2. the "coal rich but oil and gas insufficient" resource structure determines the "unclean" energy consuming structure;(3) the increasing dependence on imported oil and gas determines the "unsafe" energy supply;and(4) the unconventional oil and gas endowment makes it impossible to achieve energy independence by copying the American model. From the perspective of the world energy trend and the unique situation of china’s energy, we put forward a "three-step" strategy for china to achieve "energy independence": From 2.2. to 2.35, "energy supply security" will be addressed by "cleaning coal, stabilizing oil and gas production and vigorously developing new alternative energy";from 2.35 to 2.50, the vision of "production independence" will be realized by relying on "domestic production and overseas oil and gas mining rights";from 2.50 to 2.00, "intelligent energy and new energy" will help china realize "energy independence". The two important signs of china’s "energy independence" are that domestic production accounts for more than 90% of the domestic consumption and clean energy production accounts for more than 70%, and energy security realizes "independence and self-control" and "long-term security". The strategic significance of "energy independence" is to ensure national energy security, drive the development of relevant major industries, achieve energy management reform, and implement the environmental protection goal of zero carbon emissions. The "energy independence" of china is a st

关键词： energy independence energy revolution intelligent energy coal unconventional oil and gas new energy energy long march

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关于一些油气藏概念内涵、外延及属类辨析

天然气地球科学 2011年第4期22卷 571-575页

作者：陶士振邹才能王京红范建玮中国石油勘探开发研究院北京100083

随着油气勘探和研究工作的深入,发现油气藏的类型日益丰富,弄清不同类型油气聚集的概念内涵、外延和类属,是开展深入研究和应用的基础。详细讨论了岩性油气藏、地层油气藏的内涵和属类,及其与连续型油气聚集的区别,指出了源外的连续型... 详细信息

随着油气勘探和研究工作的深入,发现油气藏的类型日益丰富,弄清不同类型油气聚集的概念内涵、外延和类属,是开展深入研究和应用的基础。详细讨论了岩性油气藏、地层油气藏的内涵和属类,及其与连续型油气聚集的区别,指出了源外的连续型油气聚集必须具备大面积非常规(致密)储层、广覆式优质烃源岩和"源—储"上下紧密叠置、无缝对接这3条充分必要条件,以及圈闭形成条件和渗流聚集方式2.鉴别标志(本质属性)。

关键词：油气藏岩性油气藏地层油气藏非常规油气连续型油气聚集概念内涵和外延鉴别标志本质属性

Discrimination of abiogenic and biogenic alkane gases

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Science china Earth Sciences 2008年第12期51卷 1737-1749页

作者： DAI JinXing zou caineng ZHANG ShuiChang LI Jian NI YunYan HU GuoYi LUO Xia {2. shizhen ZHU GuangYou MI JingKui LI ZhiSheng HU AnPing YANG Chun ZHOU QingHua SHUAI YanHua ZHANG Ying MA ChengHua research institute of Petroleum {2. and development Petro ChinaBeijing 100083China Department of Earth Sciences Zhejiang UniversityHangzhou 310027China research institute of Petroleum {2. and development(Langfang Branch) PetroChinaLangfang 065007China

We have combined the analytical data of the carbon isotope distribution pattern, R/Ra and CH4/3He values of abiogenic and biogenic (referring to the thermogenic and bacterial or microbial) alkane gases in china with those of alkane gases from USA, Russia, Germany, Australia and other countries. Four discrimination criteria are derived from this comparative study: 1) Carbon isotopic composition is generally greater than ?30‰ for abiogenic methane and less than ?30‰ for biogenic methane; 2. Abiogenic alkane gases have a carbon isotopic reversal trend (δ13C1> δ13C2. δ13C3> δ13C4) with δ13C1> ?30‰ in general; 3) Gases with R/Ra >0.5 and δ13C1? δ13C2.0 are of abiogenic origin; 4) Gases (methane) with CH4/3He?106 are of abiogenic origin, whereas gases with CH4/3He?1011 are of biogenic origin.

关键词： biogenic abiogenic alkane gas discrimination carbon isotope helium isotope

中国断陷和坳陷湖盆高可容纳空间层序细粒重力流沉积及其页岩油意义

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古地理学报 2024年第4期26卷 941-961页

作者：冯有良邹才能杨智蒋文琦张天舒张洪刘畅王小妮中国石油勘探开发研究院北京100083 北京大学地球与空间科学学院北京100871

重力流包括粗粒和细粒重力流,是深湖环境最重要的沉积类型之一,其中,细粒重力流能成为非常规页岩油的“甜点段”。研究该沉积在陆相湖盆层序格架中的分布规律,对页岩油“甜点段”的预测具有重要意义。作者通过对中国主要湖盆重力流发育... 详细信息

重力流包括粗粒和细粒重力流,是深湖环境最重要的沉积类型之一,其中,细粒重力流能成为非常规页岩油的“甜点段”。研究该沉积在陆相湖盆层序格架中的分布规律,对页岩油“甜点段”的预测具有重要意义。作者通过对中国主要湖盆重力流发育与层序格架的系统对比研究发现,重力流沉积体系主要发育在高可容纳空间沉积层序中。断陷湖盆的低位域(LST)湖底扇近端发育粗粒重力流沉积,远端发育薄层细粒重力流沉积,其分布受沟谷和同沉积构造坡折的控制。水进体系域(TST)发育细粒水道—堤—朵叶体系。高位体系域(HST)发育非限定水道湖底扇,细粒重力流沉积分布在扇的远端。坳陷湖盆的水进体系域(TST)主要发育受洪泛影响的大型细粒水道—堤—朵叶体系,而在湖盆挠曲坡折的较陡斜坡发育细粒湖底扇体系。高位域(HST)及低位域(LST)既可形成细粒湖底扇体系,也可发育细粒的水道—堤—朵叶体系。分布在湖底扇远端和水道—堤—朵叶体系的细粒重力流沉积能形成页岩油的“甜点段”。泥流沉积形成页理型“甜点段”,细粒碎屑流、细粒浊流、细粒异重流和细粒过渡流沉积形成纹层型、层理型“甜点段”,细粒浓缩密度流沉积只形成层理型“甜点段”。细粒重力流沉积是页岩油勘探开发的有利“甜点段”。

关键词：高可容纳空间层序细粒重力流沉积陆相盆地页岩油 “甜点段”

Geological theory and exploration & development practice of hydrocarbon accumulation inside continental source kitchens

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Petroleum exploration and development 2020年第6期47卷 1147-1159页

作者： JIAO Fangzheng zou caineng YANG Zhi china National Petroleum Corporation Beijing 100007China research institute of Petroleum {2.&development PetroChinaBeijing 100083China

Continental shale strata in china are rich in petroleum resources and are an important area to strengthen domestic oil exploration and *** on the latest progress in geological {2. and exploration and development of petroleum inside continental source kitchens of china National Petroleum Corporation exploration areas in recent two years,we have achieved the following results:(1)The geological connotations of continental hydrocarbon accumulation inside source kitchen and"sweet spot"have been *** intra-source petroleum accumulation refers to the accumulation of liquid-rich hydrocarbons retained or captured in the continental organic-rich shale strata,and"sweet spot"refers to the favorable reservoir with higher oil content,better physical properties,easier to stimulate and higher in commercial development value in the overall oil-bearing continental source rock series,they can be divided into three types,interlayer,hybrid sediment and shale.(2.High-quality shale formations in both salt water and freshwater lacustrine basins can generate hydrocarbons on a large scale,shale strata have multiple types of favorable reservoirs with large-scale storage capacity,the intra-source shale strata are overall oil-bearing and large in resource scale,and there are multiple favorable shale series for *** exploration and development practice is propelling the formation of a series of exploration and development key technologies with"sweet spot exploration"and"volume development"as the *** pilot tests of these technologies have provided an important scientific basis for the economic and effective development of hydrocarbon accumulation inside source kitchen,and popularization of these technologies have achieved encouraging results preliminarily.(3)Two types of continental intra-source petroleum resources in china have great potential,including medium-high maturity with liquid-rich hydrocarbons and medium-low maturity with organic-rich matter.

关键词： hydrocarbon accumulation inside source kitchen continental shale oil continuous distribution overall oil-bearing reservoir sweet spot volume development source-reservoir integration

Theory, Technology and Practice of Unconventional Petroleum Geology

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Journal of Earth Science 2023年第4期34卷 951-965页

作者： caineng zou Zhi Yang Guosheng Zhang Rukai Zhu {2. tao Xuanjun Yuan Lianhua Hou Dazhong Dong Qiulin Guo Yan Song Qiquan Ran Zhen Qiu Songtao Wu Feng Ma Bin Bai Lan Wang Bo Xiong Songqi Pan Hanlin Liu Xiaoni Wang petrochina research {2. of Petroleum exploration&development Beijing 10083China

0 INTRODUCTION The breakthroughs in unconventional petroleum have a great impact on world petroleum industry and innovation in petroleum geology(Dou et al,2.2.;Jia,2.17;zou et al.,2.15b,2.14a;Yerkin,2.12.Pollastro,2.07;Schmoker,1995).The exploration and {2. evolution from conventional petroleum to unconventional petroleum and more and more frequent industrial activities of exploring petroleum inside sources kitchen have deepened theoretical understanding of unconventional petroleum geology and promoted technical research and {2.(Jia et al.,2.2.,2.17;Jin et al.,2.2.;Zhao W Z et al.,2.2.;Ma Y S et al.,2.18,2.12.zou et al.,2.18b,2.16,2.09;Dai et al.,2.12..We have introduced and extended the theory of continuous hydrocarbon accumulation since 2.08 and published several papers/books(in Chinese and English)with respect to unconventional petroleum geology since 2.09,basically forming the theoretical framework for this discipline(Yang et al.,2.2.a,2.2.a,2.19a,,2.15a;zou et al.,2.19c,2.17b,2.14a,,2.13a).In this paper,we present the background of unconventional petroleum geology,review the latest theoretical and technological progress in unconventional petroleum geology,introduce relevant thinking and practices in china,and explore the pathway of unconventional petroleum revolution and multi-energy coordinated {2. in super energy basins,hopefully to promote the unconventional petroleum geology and industry {2..

关键词： unconventional petroleum geology conventional-unconventional petroleum geology source rock oil and gas oil and gas in source rock stratum fine-grained sediment microscale to nanoscale pore throat continuous hydrocarbon accumulation artificial hydrocarbon reservoir exploring petroleum inside source kitchen shale revolution coal rock revolution chemical transformation within source super energy basin.

Reservoir Porosity Measurement Uncertainty and its Influence on Shale Gas Resource Assessment

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Acta Geologica Sinica(English Edition) 2020年第2期94卷 233-242页

作者： TIAN Hua zou caineng LIU Shaobo HONG Feng FAN Junjia GUI Lili HAO Jiaqing research institute of Petroleum {2. and development.petrochina Beijing 100083China Key Laboratory of Basin Structure and Hydrocarbon Accumulation.CNPC Beijing 100083China Key Laboratory of Petroleum Geochemistry CNPCBeijing 100083China

Reservoir porosity is a critical parameter for the process of unconventional oil and gas resources assessment. It is difficult to determine the porosity of a gas shale reservoir, and any large deviation will directly reduce the credibility of any shale gas resources evaluation. However, there is no quantitative explanation for the accuracy of porosity measurement. In this paper, measurement uncertainty, an internationally recognized index, was used to evaluate the results of porosity measurement of gas shale plugs, and its impact on the credibility of shale gas resources assessment was determined. The following conclusions are drawn:(1) the measurement uncertainty of porosity of a shale plug is 1.76%–3.12. using current measurement methods, the upper end of which is too large to be acceptable. It is suggested that the measurement uncertainty should be factored into the standard helium gas injection porosity determination experiment, and the uncertainty should be less than 2.00% when using a high-precision pressure gauge;(2. in order to reduce the risk for exploration and decision-making, attention should be paid to the large uncertainty(30% at least) of shale gas resource assessment results, sometimes with corrections being made based on the practical considerations;(3) a pressure gauge with an accuracy of 0.2.% of the full scal cannot meet the requirements of porosity measurement, and a high-precision plug cutting method or high-precision bulk volume measurement method such as one using 3 D scanning, is recommended to effectively reduce porosity uncertainty;(4) the method and process for evaluating the measurement uncertainty of gas shale porosity could also be referred for assessment of experimental quality by other laboratories.

关键词： shale gas resource assessment porosity measurement uncertainty