Dissertation > Excellent graduate degree dissertation topics show

The Diagenesis of Sandstone of the Upper Paleozoie, Da-22 Well Field of Tabamiao Area, North Ordos Basin

Author: WeiWenWen
Tutor: HuangSiJing
School: Chengdu University of Technology
Course: Geology
Keywords: Ordos Basin Upper Paleozoic strata Carbonate cements Dissolution Diagenesis
CLC: P618.13
Type: Master's thesis
Year: 2011
Downloads: 42
Quote: 0
Read: Download Dissertation

Abstract


The paper mainly discusses the control factors of the Ordos Basin Tabamiao Upper Paleozoic sandstone diagenesis . 29 samples into the thin section analysis and identification , to determine detrital grains and authigenic mineral composition and content . Paragenetic sequence carefully study the distribution of authigenic minerals . Upper Paleozoic sandstone of the Ordos Basin Tabamiao area rich phyllite and mudstone plastic characteristics , which makes the strong compaction deformation early significant densification . Its relatively high content of cuttings is the parent rock source area rich metamorphic rocks by strong acidic water corrosion and reform of the coal-bearing strata during diagenesis . Basis placeholder relations and mineral type and morphology , identified a different type of carbonate rocks cement . C-I type calcite filling intergranular porosity formed earlier . Can be divided into the C - IA -type and C-Ib type in which the C - Ia Calcite mainly formed in a segment too , may BSR ( bacterial reduction of sulfate) with the product . C-Ib - type calcite formation interbedded with coal-bearing strata in the formation process of the peat role of organic acids , carbon dioxide Feldspar dissolution of calcite formation . C-II type calcite formed in the plastic debris compaction deformation may enter the diagenetic evolution stage in coal-bearing strata formed CO 2 formation of feldspar dissolved calcite cement . The DI type dolomite diagenetic unclear , deep burial formed under relatively alkaline environment . D-II dolomite shaped paralic the phase mixing water environment extensively developed . The authigenic quartz identified two types , respectively, is Q-1 and Q -2 . Q-1 quartz cement euhedral its formation requires a higher pore space , may be the dissolution Dissolution and alteration of the sandstone . Q-2 type euhedral difference reflects the region generally strongly authigenic quartz precipitation space compaction is suppressed . Identified two dissolution based on the characteristics of secondary porosity . Combination of burial characteristics of the coal-bearing strata to recognize that the first phase of dissolution occurred earlier , may be associated with interbedded coal-bearing strata in the formation process of the peat role of organic acids , carbon dioxide -related . Second phase dissolution occurs relatively late diagenetic evolution stage may be entering with the coal-bearing strata to form CO 2 .

Related Dissertations

  1. Acid solution on the structure and properties of chitosan / hydroxyapatite composite,R318.08
  2. Ordos Basin, Fan Xue oil Yan'an,extension of nine sedimentary facies and reservoir characteristics,P618.13
  3. E'nan Fuxian area Mesozoic hydrocarbon accumulation and enrichment regularity of controlling factors,P618.13
  4. East Second District Mountain gas field 1 section and box 8 Sedimentary facies and reservoir evaluation,P618.13
  5. Low permeability reservoirs high water cut stage remaining oil distribution,P618.13
  6. Luxi Cambrian carbonate rocks Diagenesis,P618.13
  7. Southwestern margin of the Ordos Basin, Late Ordovician outcrop sequence stratigraphy,P618.13
  8. Longdong area , Ordos Basin Yanchang three sedimentary facies and reservoir environmental analysis,P618.13
  9. New exploration to improve our Company Judicial Dissolution system,D922.291.91
  10. Discussion on the Protection of Minority Shareholders’ Rights in Limited Liability Companies,D922.291.91
  11. A Study on Basic Legal Issues of the Company Judicial Dissolution Lawsuit,D922.291.91
  12. Judicial Dissolution Legal Issues,D922.291.91
  13. Studies on Solid Dispersion of Indomethacin and Its Enteric-coated Tablets,R943
  14. The Study on the Content Determint, Fingerprint and Dissolution of ShenFuShu Granules,R286.0
  15. The Pharmacokinetic Study of Ferulicacid-co Tetramethylpyrazine and Development of Tablet,R283
  16. Research on Company Dissolution Litigation in the State of Corporation Deadlock,D922.291.91
  17. Shareholder of a Limited Liability Company Exit Mechanism Research,D922.291.91
  18. The Log Interpretation Technique for Low-porosity and Low-permeability Oil Intervals of Baibao Oil Field,P631.84
  19. Extend the Ordos Basin in the mountains Chang 6 Sedimentary microfacies and sequence stratigraphy studies,P618.13
  20. Structural Attitude and Research Progressin Oil and Gas Reservoirs in Sudeerte Structural Belt in Beier Sag, Hailar Basin,P618.13
  21. Sedimentology and Reservoir Modeling of the Hetaoyuan Formation, Xiaermen Oilfield,P618.13

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