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Study On Mineral Particles And Mechanical Parameters Of Deep Well In Daqing

Posted on:2018-03-29Degree:MasterType:Thesis
Country:ChinaCandidate:Y X LiFull Text:PDF
GTID:2321330512997445Subject:Oil-Gas Well Engineering
Abstract/Summary:PDF Full Text Request
More than two thousand five hundred meters deep Daqing deep well,mostly for the Jurassic system and the Cretaceous system.Daqing deep rock is mostly mudstone,metamorphic rock,sandstone,volcanic rocks and sandstone and other dense rock.In this paper,the law of stress and strain is studied by chaos analysis.At the same time,the field of drilling the core,after grinding.Particle size analysis is to determine the content of particles in different sizes of rocks.The method of determining the particle size of the rock mainly includes sieve sedimentation method,slice image statistic method and laser diffraction method.In this paper,a sieving method is used,and a thin slice analysis method is used for some conglomerates.It is concluded that the rock is heterogeneous and the particles are irregularly embedded..1.A variety of rocks are mainly in the form of fine particles in the deep,through the core observation,microscopic identification,laboratory tests and other research methods on the core of the Songliao Basin rock mechanics and drillability to do the test,grading And forecast.Study on the granularity of deep rock in Daqing area and find that the whole particle size is small.In this paper,we find the law of stress and strain in the past,and explain how the rock can be destroyed from the angle of particle by using chaos theory.2.The quality of the mineral particles is sieved to obtain the distribution curve,and the highest dimension of the mineral particles is obtained according to the distribution curve.It was found that with the deepening of the depth,the higher the dimension of the mineral particles.The size of the fractal dimension increases with the depth of the drilling process.Therefore,the smaller the fractal dimension is,the higher the fractal dimension is,the stronger the hardness of the rock ore body,and the more difficult the rock is.Observation data and analysis data charts,the use of mathematical probability statistics,mathematical induction and chaos theory of statistical methods to analyze the cuttings.From the development history,the study of rock particles has always been accompanied by the development of geological development,but also with the development of oilfield development and development.Especially in rock drilling,fluid mechanics,rock classification and other fields to provide an important parameter guarantee.
Keywords/Search Tags:fractal dimension, screening method, chaos theory, particle distribution, deep well in Daqing
PDF Full Text Request
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