When Oil And Gas Well Fracturing Downhole Pressure And Temperature Monitoring And Analysis

With the development of hydraulic fracturing technology, fracturing pressure and temperature analysis and interpretation technology are more widely appreciated, parameters obtained from fracturing pressure and temperature analysis can be used to analyze assessment of the quality of fracturing scientificly and reasonably to enhance the level of fracturing and construction effect.In the analysis of the research and literature of domestic and foreign about fracturing pressure and temperature and on the basis of previous research.the author develops and improves the fracturing pressure analysis. Crack closure derived formula of the stress analysis, and interpretation of the pressure drop model was modified and improved method to obtain the crack length, width, fracturing fluid efficiency, filtration coefficient assessment and other relevant parameters. On the pressure after crack closure analysis of the dynamics described, provides crack length, initial filtration and estimation of parameters such as reservoir permeability, pressure drop analysis of the closing period to correct a complementary role to play; in the previous studies Established on the basis of the temperature recovery after pumping model, and analyze the temperature influence on pressure values. Finally, on the basis of theory, through using VB language has developed a Windows environment software about fracturing pressure analysis, and use the software for the parameter analysis, the results show that the analysis using this model to explain the method can be on the crack geometry, and the reservoir fracturing fluid filtration more accurate information, but also to illustrate the reliability and applicability of the software.