最新刊期
卷 10 ， 期 1 ， 1989
- 摘要：According to the principle that the chronostratigraphic boundary oughtto be a natural boundary reflecting a development stage of the earth,an in-ternational chronostratigraphic system of the Permian has been advanced inthis paper with the complete marine strata of the Permian in PaleotethysRealm as basis and with the development stage of fusulinid,which is thefirst leading fossil group in the Permian,as united indication.In this sys-tem,the Permian is composed of 11 stages of three series,namely(inascending order):the Kasimovian stage(newly defined),the Gzhelianstage(newly defined),the Asselian stage,the Sakmarian stage and theXiangzhongian stage of Lower Permian series;the Qixian stage and otherthree stages which remain to be named in future of Middle Permianseries;the Sanyangian stage and the Changxingian stage of Upper Per-mian series.550|391|0更新时间：2023-05-30
- 摘要：Tuzituoyila fault belt,situated in the northeast margin of the JunggarBasin,is primarily made up of northeast dipping thrusts.Its structural cha-racteristics is very similar to Karamay fault belt,and possesses of 3 terra-ces descending step by step from edge to the centre of the basin.This faultbelt was mainly moved in the end of the Paleozoic to the Jurassic.So theforeland depression connecting with the belt is primerily filled with Triassic-Jurassic and Upper Permian sediments.Upper Permian is considered as amajor source rock,Upper Triassic and Sangonghe Formation of the LowerJurassic may be secondary.Tuzituoyila fault belt may be provided withconditions for forming a complex oil and gas accumulation zone whichmay contain various kinds of oil pools such as fault block,fault-lithologicaland basement rock pools,etc.558|386|0更新时间：2023-05-30
-
PREDICTION OF LITHOLOGIC OIL POOLS IN FUYU MEMBER OF SOUTH SONGLIAO BASIN BY CHARACTERISTIC ANALYSIS
摘要：With zhaoyuan-zhaozhou-zhaodong Region in north Songliao Basin as amodel,the authors made an optimal mathematical model of lithologic oilpools,and by this model,predicted the distribution of this kind of pools insouthern Songliao Basin,pointed out two favourable regions.595|630|0更新时间：2023-05-30 - 摘要：The fact that there is a strong relationship between diagenesis and matu-ration of organic matter can be believed after studying several sections inthe Liaohe Basin.The ability of clay minerals to catalyze organic reactionsinvolved in the generation of oil has been recognized.Different clay assem-blages may play different roles in the primary migration of oil from mudsource rocks.On the other hand,the presence of organic matter appears toinfluence the mechanism of smectite-illite transformation.The reaction occursin different ways when organic matter is present or not.The study of thestable carbon-and oxygen-isotope shows that organic matter is an importantcarbon source for diagenetic calcites.Organic reaction thus correlates withinorganic reaction during diagenesis,constituting a complete“geochemicalsystem of diagenesis”.588|762|0更新时间：2023-05-30
- 摘要：Shacan-2 well is a high yield oil well in the Tarim Basin,the reser-voir is Ordovician limestone.The author studied the biodegradation pro-ducts(25-nor-hopanes)in the oil,the pyrolysis product of the asphaltenefrom this well,and the extracts of Ordovician limestone core in Lunnan-1well.The author considered that the crude oil in Shacan-2 well is a mixtureformed by two accumulations.The crude oil accumulated at the first timeunderwent serious biodegradation,but the rest did not.632|554|0更新时间：2023-05-30
- 摘要：The authors studied the thermal history of the main source beds of Aican-1and Huonan-1 Wells in Junggar Basin by apatite fission-track.It is suggested thatthe source beds of Aican-1 Well underwent the history of temperature-increasein the early stage and temperature-decrease in the late stage(150 Ma.ago),andthat the source beds of Huonan-1 Well uplifted in recent 31 Ma.668|771|0更新时间：2023-05-30
- 摘要：It has been proved by observation of a lot of cores that shallow lacus-trine sandbodies in hydrocarbon-bearing basins of the Meso-Cenozoic inEast China are the products of flood flow and can be divided into three se-dimentary microfacies:1.Channel microfacies,characterized by multistoryfinger sandbodies with base scour and parallel-lamination;2.Overflow mi-crofacies appeared as sheet-like sandbodies with mixed character of coarseand fine grain;3.Distal microfacies,characterized by well-developed lamina-tion and common burrows.The genetic model of shallow lacustrine terrige-nous debris sandbodies,represented by the ones of the Dongpu and Shong-liao Basins,have four properties.759|391|0更新时间：2023-05-30
- 摘要：Field survey and seismic reflection profiles indicate that the followingmain fault types exist in northeastern Tarim Basin:1.imbricate thrustbelt;2.fold and thrust belt;3.recoil thrust belt;4.antithetic thrustfault;5.nappe tectonics;6.strike-slip faults.The formation of the thrustswere mainly controlled by regional stress field resulted from lateral comp-ression.Other factors are gravitation,basement control and diseguilibriumthrusting. Fault structures in this area play an important role in controllinghydrocarbon accumulation.Recoil thrust belt in Shaya Uplift and Akum,fronts of Shajinzi and Luntai major thrusts,antithetic thrust in Bostan,strike-slip fault belt in Karayergun and western Shaya and the fold,thrustbelt in Kuche Depression are favourable zones for oil accumulation.636|472|0更新时间：2023-05-30
- 摘要：The authors studied 41 samples of kerogen from the Eogene HetaoyuanFormation in Biyang Depression,Henan by ETIR technique.Oxygen-bearingfunctional group decreases with the increase of buried depth,and completelydisappeared at 3500m.Alkyl group increases to a peak value with theincrease of buried depth,and then decreases gradually.The depth of peak-value shows identity with that of oil-generating peak.Aromatic rings showa little change near the threshold depth of oil-generation but increases obvi-ously below the depth of oil-generation peak.663|796|0更新时间：2023-05-30
- 摘要：Reservoirs of the Jiamuhe Formation in 5th district,Karamay Oilfield,consist of igneous,sedimentary and metamorphic rocks with crevice-poredual medium.According to identification of facies based on volcanic me-chanism and the study of the speciality and behaviours of the reservoirs frommacrostructure and microstructure,the reservoirs can be divided into threegrades in the present paper.It is showed that the crevices play a dominantrole in improving the physical property of the reservoirs and increasing theyield of oil wells.837|460|0更新时间：2023-05-30
- 摘要：Laojunmiao thrust belt,a tipical one,consists of Laojunmiao thrustand north Laojunmiao thrust.The fault planes have a listric feature,slip-ped down along the soft layer of the Taiyuan Formation.The variationfrom east to west in the belt as follows:the displacement and shorteningdecrease gradually;the fold amplitude decreases but its width and the thrustsheet thick ness increase.The variation of the thrust sheet thickness isprobably the main factor leading to other deformation.The evolution process of the Laojunmiao thrust belt that formed duringthe Himalayan movement can be divided into four stages:prethrus stage,embryomic stage,young stage and mature stage.The folds,especially thefaults developed gradually from east to west and from south to north.The deep structures of the belt,including the thrus sheet of north Laojun-miao and the structures in the Lower walls,are favourable for hydrocarbonaccumulation and are new fields for oil exploration.680|555|0更新时间：2023-05-30
- 摘要：The Lujiabao Depression,situated in the east part of the inner Mongolia withan area of 2500 km2,is one of the two biggest depressions in the Kailu Basin.The basement consists of hypergone metamorphic rocks of the Carboniferous-Permian Systems and the sediments with the total thickness of 5000m inthe basin are mainly made of Upper Jurassic,Cretaceous and few Cenozoic.Its evolution can be divided into two.stages.Fault-subsidence occurred in theLate Jurassic and depression in the Early Cretaceous.The Fuxin,Shahai andJiufotang Formations of the Upper Jurassic are considered as three source beds.The former is a poor one belongs to sapropel type,the latter two are betteror fine ones with abundant organic matter,of which the first two are sapro-pelic and the last belongs to humosapropelic type.In accordance with the ratioof hydrocarbon transformation,and of vitrinite-reflectance and OEP value,oil-generating threshold is determined to be 1400m in depth,lower-maturationstage is in 1400-1780m,and maturation stage in 1780-2200m.It is suggestedthat the Jiufotang and Shahai Formations have reached the oil threshold,andthe valuable thickness of source rocks is about 700m.Sandstones and contem-poraneous faults and secondary structures related to faults are well develo-ped in the depression.The formation time of traps coordinated with that ofoil-gas generation,thus oil show has been discovered in 5 wells there.622|848|0更新时间：2023-05-30
- Postal code：102206
- Tel：010-56607717，56608306
- Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09064830号-19
京公网安备11010802024621 - It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
- Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
0