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Qijia-Gulong Area Syncline Forming Mechanism

Author: MaZuoZuo
Tutor: ShenJiaNian
School: Daqing Petroleum Institute
Course: Oil and gas fields Geological Engineering
Keywords: Targan syncline oil and gas reservoir distribution main controlling factors Syncline reservoir accumulation model
CLC: P618.13
Type: Master's thesis
Year: 2010
Downloads: 45
Quote: 0
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Abstract


Syncline basins containing oil and gas exploration target area is looking for a new field of oil geology. Far syncline forming mechanism has been mature, this study has important theoretical significance and practical reference value. This paper has targan syncline Putaohua as the main object of study, carried out the study syncline forming mechanism, this study integrated geological analysis, based on full use of targan syncline area of existing drilling, testing wells, seismic, ground-based, analytical test data, using the method of superposition of the Qijia Gulong Depression targan syncline reservoir forming conditions, reservoir distribution patterns. This article sum up the pressure in the ultra-Putaohua under the control of the migration patterns of fluid from a geological point of view shows syncline forming the necessary conditions.The oil-source correlation and hydrocarbon source rock studies, that the study area Putaohua oil from qn. On the reservoir rock characteristics were studied, indicating that this region a lower sandstone compositional maturity, structure, maturity medium. Physical characteristics of the reservoir study of the genus Putaohua porosity, low permeability reservoir, porosity, permeability low value area is mainly distributed in depression center, and a relatively shallow depth and the direction of the source material better porosity and permeability. And Putaohua uneven distribution of porosity and permeability. Confirmed the reservoir overpressure overpressure within the system come mainly from the pressure of passing; inside the thermal cracking of crude oil also has contributed to the reservoir. Right reservoir overpressure and overpressure shale Qingshankou Qingshankou the distribution of that group is now thrown into the hydrocarbon reservoir for the hydrocarbons to the grape flowers, and think that this is an important material syncline reservoir conditions. Residual effect is an important Fengdang syncline reservoir conditions. Another paper that the excess pressure can also play a Fengdang syncline forming role. Pointed out that the syncline area is mainly lithologic reservoir reservoir type. Identified oil and gas accumulation period. On this basis, summed up targan syncline syncline reservoir area into a reservoir formation model controlling factors and accumulation mechanism of the study, improve the syncline area into a reservoir theory syncline area for the future development of the specified evaluation direction.

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CLC: > Astronomy,Earth Sciences > Geology > Of ore deposits > Deposit classification > Fuel deposits > Oil, natural gas
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