Dissertation > Excellent graduate degree dissertation topics show

Qiangtang Basin in Mesozoic source rocks in petroleum geochemistry

Author: ShenBin
Tutor: WangShuangQing
School: Chinese Academy of Geological Sciences
Course: Analytical Chemistry
Keywords: Qiangtang Basin Source rocks Organic Geochemistry Biomarkers Kerogen
CLC: P618.13
Type: Master's thesis
Year: 2008
Downloads: 232
Quote: 0
Read: Download Dissertation

Abstract


Qiangtang Basin in Qinghai-Tibet Plateau is the relatively low level of onshore exploration has good exploration prospects of oil and gas basins, due to the special geographical and geological conditions, the Qiangtang Basin oil and gas exploration there are many problems to solve geological studies scientific issues and technical methodological issues. Based on the 164 collected from the Qiangtang Mesozoic source rocks of the main hydrocarbon source rock samples of surface and drilling core samples for geochemical analysis and testing of the system oil studied Qiangtang Basin main source rocks of organic geochemistry characteristics to the area for further study hydrocarbon generation, migration, accumulation rule provides petroleum geochemistry basis. Large amounts of organic geochemical data indicate that the Qiangtang Basin and Upper Triassic Jurassic source rocks maturity of organic matter generally high, in a high maturity - over mature stage. Kerogen vitrinite reflectance (R o ) were 2.8% above; most of hydrocarbon source rocks from pyrolysis maximum peak value at 455 ℃ temperature above; sapropel kerogen groups and liptinite macerals disappeared, has been transformed into the body of secondary particles, anisotropic body and the mirror-like body; hydrocarbon source rocks in the organic matter is essentially residual organic matter, hydrocarbon source rock pyrolysis analysis, soluble hydrocarbons S 1 = 0.04mg / g, pyrolysis of hydrocarbons S 2 in the 0.01 ~ 0.10mg / g, the residual carbon S 4 is 0.01 ~ 11.11mg / g, bitumen A content of 0.0005% 0.0283%. Qiangtang Basin source rocks in the abundance of organic matter is generally not high, but the total organic carbon content is relatively stable. Mudstone and shale of the total organic matter content of 0.03 to 0.52% of total carbonate content of organic matter from 0.05 to 1.22 percent, according to the relevant source rocks grading standards to moderate hydrocarbon source rocks and a good source rocks based. Qiangtang Basin Jurassic source rocks of marine sedimentary environment reducing environment. Pr / Ph value of 0.18 to 0.8. Organic precursors are mainly low aquatic organisms, higher plants mixed. nC 21 -/nC 21 values ??between 0.84 to 2.18, with more than one primary; alkanes most to nC 17 is peak carbon, a few nC 27 . C 27 , C 28 , C 29 steranes irregular \> and C 29 roughly equal abundance. High degree of thermal evolution on Mesozoic source rocks in Qiangtang Basin molecular geochemistry have a significant effect. Steroids, terpenoids suffered serious damage, and generate a rich thick high degree of polycyclic aromatic hydrocarbons and olefins series of compounds, carbon isotopic composition is also apparent disproportionation. Weathering effects on the surface of Qiangtang Basin geochemical information source rocks have significant reworking. Surface hydrocarbon source rocks underground hydrocarbon source rocks than the significantly lower abundance and total organic carbon abundance of soluble organic matter, rock pyrolysis peak temperature was significantly increased; surface kerogen oxygen, nitrogen atom loss obvious elements become No strata law.

Related Dissertations

  1. Preliminary Studies on Peptidomics and Metabonomics of Cerebral Infarction with Blood Stasis Syndrome,R277.7
  2. Features of Jurassic Reservoir and Fluid Inclusions Analysis of Qiangtang Basin,P618.13
  3. Geochemical Characteristics of Hydrocarbon Source Rocks in Nima Basin, Tibet,P618.13
  4. Study on the Effects of Copper, Lead and Environmental Factors in Seawater on Biomarkers of Ruditapes Philippinarum,X174
  5. Qiangtang Basin, Shengli River oil shale research environment and its petroleum geological significance,P618.13
  6. Analysis of Quinolones in Typical Aquaculture Regions Along the Coast of Guangdong Province and Study of Its Biomarkers,S948
  7. Research and Implementation of ARM-based kerogen automatic the preparation instrument control system,TP273
  8. Identification of Lung Cancer Specific Peptide by Phage Display Technology and Validation Novel Tumor Association Biomaker,R734.2
  9. The Efficient Hydrocarbon Supply of the High-over Mature Source Rock in the Wester of the Middle Yangtze Region,P618.130.1
  10. Distribution of Lipids Biomarkers in Surface Sediments of the East China Sea and the Yellow Sea and Paleoecological Reconstruction,P736.21
  11. Suspended particulate matter in the East China Sea shelf area ratio of phytoplankton biomarker changes and population structure of the mud area southwest of Cheju Island rebuild,P734
  12. Kerogen automatic preparation system key technology research and equipment design and implementation,TE91
  13. Halahatang depression Marine Petroleum Geochemistry,P618.13
  14. The Research of Ecostratigraphy on Middle Late Jurassic in Easten Qiangtang Basin,Q911.5
  15. Study on Palaeozoic Marine Sedimentary Systems in Kongquehe Area of Tarim Basin,P512.2
  16. The Tarim Basin Kongquehe slopes Hydrocarbon Accumulation Mechanism,P618.130.1
  17. Study on the Characteristics of Coal-bed Methane Geology in the Center of Fuxin Basin,P618.11
  18. Damintun Hydrocarbon Accumulation Mechanism of nature,P618.130.2
  19. Serum proteomics technology to find proteins related to liver cancer,R735.7
  20. The Hydrocarbon Reservoir-forming Conditions’ Research of Baijiahai Area in the East of Junggar Basin,P618.13

CLC: > Astronomy,Earth Sciences > Geology > Of ore deposits > Deposit classification > Fuel deposits > Oil, natural gas
© 2012 www.DissertationTopic.Net  Mobile