石油实验地质

ISOLATION, IDENTIFICATION, AND CORRELATION OF PORPHYRINS IN CONTINENTAL CRUDE OIL, SOURCE ROCK, AND SOME CHINESE OIL SHALE AND COAL

Yang Zhiqiong, Li Yimin, Cheng Zhuengdi, Zhang Dagiang

1985, 7(3): 167-178. doi: 10.11781/sysydz198503167

Abstract(624) PDF-CN(294)

Abstract:
This paper deals mainly with the methodology of the isolation, identification of porphyrins in solvent extraction, TLC, HPLC, GC-MS, UV-visible, and fluorescence spectrophotometry applicable to the crude oils and source rocks of Senli, Ji Zhong, and Liao He Oilfield, as well as oil shales and coals of Fusuin and Myomin basins. Correlation of these oil fields data and the differences among them suggest the following: l.Free porphyrin type based on visible absorption spectrophotometry is of mixed type for crude oil and source rock; is of DPEP for oil shale; is of Etio for coal. 2.Ratio of DPEP/Etio is 2.2-3.4 for crude oil and source rock; is 4.5 for oil shale; is 0.3 for coal. 3.Maximum mass abundance of porphyrin molecules is 462 for crude oil and source rockj is 476 for oil shale; is 478 for coal. 4.Concentration of metal porphyrins is 53-424 ppm for crude oil; is 2.2-31 ppm for oil shale; is 0.25-2 ppm for coal.

THE APPLICATION OF GEOCHEMICAL CHARACTERISTICS OF ORGANIC MATTER FROM GROUNDWATER IN PETROLEUM CHEMICAL EXPLORATION

Lui Zhongxi

1985, 7(3): 179-186. doi: 10.11781/sysydz198503179

Abstract(625) PDF-CN(275)

Abstract:
This paper makes a discussion on the thesis of the composition, structure and distribution of organic matter from groundwater as well as on some topics of geochemistry of oil and natural gas. Therefore, the author has completed sampling, testing and result analysing systematically. It states that the characteristics of content, composition, structure of organic matter from groundwater which associated with oil and natural gas have an essential distiction from those which are regardless of oil and natural gas areas.

A MEASUREMENT OF PERYLENE IN GEOLOGICAL SPECIMENS WITH THIN LAYER CHROMATOGRAPHY SCANNER

Xu Lian

1985, 7(3): 187-192. doi: 10.11781/sysydz198503187

Abstract(497) PDF-CN(223)

Abstract:
The paper mainly discusses the method of Thin Layer Chromatography Scanner which can be used in measuring perylene quantitatively direct on thin sections. The approvements are made to overcome the defects and complicated operations by using other instruments, such as Ultraviolet Visible-Spectrophotometer, Fluorescence Absorpt Spectrum, etc. Therefore, it improves the analysis efficiency.

AN APPLICATION OF INFRARED SPECTROMETRY IN CLASSIFYING THE ORGANIC MATTER TYPES OF SOURCE ROCKS

Men Qi, Sun Qibang

1985, 7(3): 193-199. doi: 10.11781/sysydz198503193

Abstract(657) PDF-CN(250)

Abstract:
In this paper, infrared spectrometry is used in probing the organic matter type of source rocks from the 1st member of Qingshankou Formation, Cre-taceous in Songliao Basin and Yanghugou Formation, Middle Carboniferous in Upper Paleozoic, Taiyuan Formation of Upper Carboniferous and Shanxi Formation, Lower Permian in Ordos Basin. Meanwhile, it presents the structure ratio of alkyl/aryl (ER cm¹/EAr cm¹ which can be taken as an indicator for identifying organic matter type.

CENO-MESOZOIC TECTONIC STRESS FIELD OF NORTH CHINA BASIN AND MECHANISM OF FORMATION AND DEVEELOPMENT OF BASIN

Zhuang peiren, Xu Chengyang, Lü Xingyuan, Zhang Yan, Hou Gang, Wang Weixiang, Han Yuying, Chen Mingyou

1985, 7(3): 200-211. doi: 10.11781/sysydz198503200

Abstract(469) PDF-CN(408)

Abstract:
This paper discusses and probes the evolution of basin structrues, and analyses the mechnaism of basin subsidence, which depends on the fea-tures of geological structures, geophysics, and those of the deeper crust and the stress variation of the surrounding high land. The knowledge is achieved as follows: I. The both sides of the basin are bounded by the Tanlu Faulting Belt and Taihang Structure Belt whose structures have been complicated and are of large size with secular activities. Since Mesozoic, the two belts have mainly undergone three stages of the stress field evolution. Ⅱ. The three evolutional stages correspond to the three different types of structure mechanisms. 1) Early, Middle Yanshanian, the type of folding faulting basin on the background of intraplate uplift; 2)Late Yanshanian-Early Xishanian, the type of extensional graben-half graben basin under the con dition of intraplate subsidence; and 3)Late Xishanian, the type of de pressing of large scale. The first two types are closely related to the occurrence of oil and gas. Ⅲ. The values from the planar and the vertical basin stress fields are simulated by adopting a program of Limited Element Increment. The re-sults, in one respect,support the thesis that North China Basin has under-gone two different stages of stress fields and indicate: 1) the controll-ing factors of the previously existing faults on the basin; 2) the possible weak parts of rock deformation and damages in shallow strara of the crust; and 3) the critical factors of vertical force coming from deeper crust dur-ing the formation of the basin.

DISCUSSION ON THE CONDITION OF FORMING PETROLEUM TRAPS IN SYNCLINE

Zhu Shixin

1985, 7(3): 212-217. doi: 10.11781/sysydz198503212

Abstract(737) PDF-CN(337)

Abstract:
Petroleum traps in syncline can de divided into four types: (l)syncli-nal bedded traps; (2) synclinal locally sealed traps; (3) synclinal subtle traps;(4)synclinal flank-sheltered traps. At present,lens,lithologic pinch-out, fissured and subtle petroleum traps have been found in the synclines of Songliao, Bohai Gulf and Sichuan Basin. It is predicted that new types of petroleum trap occupying a large area will be found in the syncline.

1985, 7(3): 217-217. doi: 10.11781/sysydz198503217

Abstract(502) PDF-CN(207)

Abstract:

PALEOGEOGRAPHY AND FACIES OF JIALINGJIANG PERIOD, EARLY TRIASSIC IN SICHUAN BASIN

Tian Ruxiao, Wei Lingchen

1985, 7(3): 218-226. doi: 10.11781/sysydz198503218

Abstract(566) PDF-CN(304)

Abstract:
As viewed from petrographic facies, the facies belts and regions of favourable reservoir from Jialing Jiang Period of Early Triassic are discussed in this paper. According to the analysis of petrographic classification, the depositional model of Jialingjiang Formation is a rising carbonate platform which has its own features as compared with Bahama Platfrom in North America. Longitudinally, it has undergone twice marine transgressions and regressions, formed two sets of depositional cycles and suites of source, reservoir and cap-rock sequences. It is believed that the area between east part and surrounding regions of Luzhou Uplift and Huayingshan, Jiyaoshan is the major petroliferous province and is a subtidal beach developed area between the platform and the platform basin margins. The main producing formation are the 1st, 3rd members, as well as the local formation of the 4th and 5th members of Jialingjiang Formation. Therefore, this area is a promising prospect in oil and gas.

THE DISTRIBUTIONAL RELATIONSHIP BETWEFN-CO₂ GAS AND OIL-GAS POOLS IN HUANGHUA DEPRESSION

Gao Xising

1985, 7(3): 227-231. doi: 10.11781/sysydz198503227

Abstract(625) PDF-CN(321)

Abstract:
Depending on the summary of the geological characteristics of CO₂ gas produced from Huanghua Depression, the paper states that the CO₂ gas is a type of multiple sources.It can be either intergrowthed and accompanied with hydrocarbon gas and liquid hydrocarbon or hetero-growthed and accom-panied with oil/gas water in the pattern of water-soluble CO₂ gas of multiple sources,meanwhile,it can be accumulated to be highly concentration CO₂ gas and distributed on the high locations of petroliferous structures.The variations of CO₂ gas content and the geological characters of CO₂ gas producing can be used as a director for reconnaissance and exploration of the hydrocarbon gas and liquid hydrocarbon.

AN APPROACH FOR BUILDING UP A PETROLEUM RESOURCE DATA BASE ON WANG—VS—80 MINICOMPUTER

Lin Junxiong, Liang Dinshan, Zhang Yannong

1985, 7(3): 232-244. doi: 10.11781/sysydz198503232

Abstract(684) PDF-CN(210)

Abstract:
This paper introduces some methods and procedures in building up a Pet-roleum Resource Data File System on WANG-VS-80 mini computer with some examples. Though the computer only possesses a software of data manage-ment system (DMS), a complicated petroleum resource data system can be built up with an extensible multifile structure by adopting certain redun-dant items. The system not only can do the jobs such as retrieving, inqui-ring, updating, revising and deleting geological data but also can do the jobs as petroleum resource estimation, prediction, etc.

JURASSIC CHAROPHYTES IN THE NORTHEASTERN PART OF TARIM BASIN AND ITS SIGNIFICANCE

Yang Guodong

1985, 7(3): 245-255. doi: 10.11781/sysydz198503245

Abstract(590) PDF-CN(264)

Abstract:
This paper discribes Jurassic charophytes in the northeastern part of Tarim Basin, which contain 25 species of 4 genera, including 8 new species and 6 unidentified species.All of those charophytes are of the same assemblage, the characteristic of the assemblage is that Aclistochara predominates overwhelmingly in number.It encompasses chiefly the Aclistochara maxima, A.lufengensis, A.nugnishanensis, A. yunnanensis etc. This is a very common assemblage in Middle Jurassic in this country. Its time pertains to the Middle Jurassic.

1985, 7(3): 256-256. doi: 10.11781/sysydz198503256

Abstract(373) PDF-CN(219)

Abstract:

1985 Vol. 7, No. 3

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