Dissertation > Excellent graduate degree dissertation topics show

Pressure Systems and It’s Relation to Distribution of Natural Gas in the upper Paleozoica of Daniudi Gasfield, Ordos Basin

Author: FanShiLong
Tutor: LiZhongDong
School: Chengdu University of Technology
Course: Mineral prospecting and exploration
Keywords: Ordos Basin Daniudi Gasfield Upper Paleozoic Pressure Systems distribution of natural gas
CLC: P618.13
Type: Master's thesis
Year: 2008
Downloads: 259
Quote: 2
Read: Download Dissertation

Abstract


Abnormal pressure is an import global geological conditions in petroliferous basins, more and more researchs indicate that abnormal pressure’s formation is intimate relation to migration and accumulation of oil—gas. There lie prevalent subnormal pressure and compactness reservoir and simple ectonic, but the gas-bearing reservoir disperse, under the background, 200 wells are researched and rock pressure’s distributional characteristics are analysed in order to illuminate in natural gas’s regularities of distribution in Daniudi gasfield. Our research discover:1. There are low-pressure gas reservoir—normal pressure gas reservoir, reservoir pressure’s value affect productive capacity largely, every interval include multi-pressure systems which reflect different hydrocarbon generation’s characters and accumulation processes in each gas pool.2. In the Upper Paleozoicln Daniudi Gasfield in Daniudi gasfield there are three kinds of overpressures which include singlet gradual change kind and split-blip gradual change kind and singlet or split-blip mutant kind, singlet gradual change kind is the best preferably in accumlating of natural gas, split-blip gradual change kind is the better preferably in accumlating of natural gas, singlet or split-blip mutant kind is the worse in accumlating of natural gas. In cross-sectional views natural gas is apparent relate to overpressure, at same stratigraphic position gas sand develop avail where overpressure is relatively small, different stratigraphic positions need different overpressures to close over gas sand, local abnormal pressure volume affect accumlations of natural gas underneath local abnormal pressure volume, natural gas give priority to migrate vertically, small overpressure’s gradient in vertical orientation is in favor of hydrocarbon generation to third and second member of Shihezi formation. In flat surfaces relatively small overpressure lie in region which gas reservoir develop availly, overpressure’s value of hydrocarbon source rock represent hydrocarbon expulsion’s level, high overpressure indicate that hydrocarbon retent largely, smallness overpressure indicate that hydrocarbon expulsion’s environments are well and hydrocarbon is expulsed adequacally to supply favorable material basis for hydrocarbon generation, the region of best productive capacity’s distribution is where hydrocarbon source rock congruence the least overpressure.3. Natural gas lie complementarity in distribution, productive capacitys of six layers distribute underlaply. Hydrocarbon generation have no choice but to prior select the best reservoir to pour. While sandy—ground ratio in vertical orientation decide stratigraphic position to be poured.

Related Dissertations

  1. Ordos Basin, Fan Xue oil Yan'an,extension of nine sedimentary facies and reservoir characteristics,P618.13
  2. East Second District Mountain gas field 1 section and box 8 Sedimentary facies and reservoir evaluation,P618.13
  3. Low permeability reservoirs high water cut stage remaining oil distribution,P618.13
  4. Southwestern margin of the Ordos Basin, Late Ordovician outcrop sequence stratigraphy,P618.13
  5. Longdong area , Ordos Basin Yanchang three sedimentary facies and reservoir environmental analysis,P618.13
  6. The Log Interpretation Technique for Low-porosity and Low-permeability Oil Intervals of Baibao Oil Field,P631.84
  7. Extend the Ordos Basin in the mountains Chang 6 Sedimentary microfacies and sequence stratigraphy studies,P618.13
  8. Research on Sequence Stratigraphy of the Ordovician Outcrop in the Southern Part of Ordos Basin,P539.2
  9. Reservoir Heterogeneity in Chang 8 in Heshui of Xifeng Oilfield,P618.130
  10. The southern margin of the Ordos Basin sedimentary facies of Triassic Yanchang,P618.13
  11. The Reservoir Characteristics and Forcasting Perspective Plays of Yan 10 in Dingbian Area, Ordos Basin,P618.13
  12. Study on Sandstone Migrating System in the Upper Palaeozoic Group of the Daniudi Gas Filed,P618.13
  13. Study on Features of Coal Reservoir of Southern Yan Chuan Block of Ordos Basin,P618.11
  14. The southern margin of the Ordos Basin Yanchang Coupling Relationship between source and diagenetic,P618.13
  15. The Research on Sedimentary System of Chang6-chang8, Yanchang Formation, Fuxian Area, Ordos Basin,P512.2
  16. Research of Sedimentary and Sequence Feature in Interval 6 of Yanchang Formation, Jiyuan Area of Ordos Basin,P618.13
  17. Sedimentary Facies and Reservoir Characteristics Research on the Lower Shihezi Formation of Permian Member 8 Formation in Gaoqiao Area,ordos Basin,P618.13
  18. Diagenesis and Pore Evolution of the Yanchang Formation Chang 6 Reservoir in the Huaqing Area of the Ordos Basin,P618.13
  19. The Diagenesis of Sandstone of the Upper Paleozoie, Da-22 Well Field of Tabamiao Area, North Ordos Basin,P618.13
  20. The Researching of the Characteristic and Main Controlling Factors of Chang-8’s Oil Reservoir in Jiyuan Area, Ordos Basin,P618.13
  21. A Synthetic Thought of Provenance Analysis in the Terrigenous Clastic Rock Basin,P575

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