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Assessment Study on the Microcosmic Damage of Fracturing Fluid for Bei 16 Block of Hailaer Oil Field

Author: WangZhaoYue
Tutor: ZhaoMingGuo；XiaoDanFeng
School: Northeast University of Petroleum
Course: Petroleum and Natural Gas
Keywords: Bei 16 block fracturing fluid damage low permeability
CLC: TE357
Type: Master's thesis
Year: 2011
Downloads: 106
Quote: 2
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Abstract


Bei 16 block is located in Sudeerte structure Beier concave Beier Lake depression Hailaer Basin. Because it is belonged to low permeability reservoir, it usually must adopt fracturing stimulation to get high production. Behavior of fracturing fluid is a main element that decides the result of fracturing stimulation and effectiveness of stimulation treatment. It has great value for optimization of fracturing fluid and improvement effectiveness of stimulation treatment through estimating behavior of fracturing fluid correctly and analyzing cause and degree of latent damage to low permeability reservoir. This paper shows two different fracturing fluid system （vegetable gum-based, polymer-based） and three different permeability rock cores (0.5×10-3μm2, 1.0×10-3μm2, 5.0×10-3μm2). Base on some experimental techniques, for example, scanning electron microscope, X diffraction, constant velocity mercury penetration and nuclear magnetic resonance, and combined with conventional flowing experiment and parallel shape contrasted experiment, it is given quantitative analysis appraised for fracturing fluids microcosmic damage of low permeability reservoirs of Bei 16 block from some damage style, such as total damage, migration of fines and clay swell damage, water locking injury, macromolecule substance adsorption and solid particulates blocking damage. Through comparing and analyzing different fracturing fluid systems and core with different permeability, this paper assesses the cause of fracturing fluid damage to tight low permeability reservoirs of Bei 16 block. It provides theory for improvement fracturing fluid system and formulation and instructing reasonably development and production for low permeability reservoirs of Bei 16 block.

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CLC: > Industrial Technology > Oil and gas industry > Oil and gas development and mining > Production Engineering > Enhanced oil recovery and maintain reservoir pressure (secondary and tertiary oil recovery )
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