Study Of The Hydraulic Systems Of Well Drilling And The CFD Simulation Of The Revolving Guide Sleeve

In recent years, with Computational Fluid Dynamics (CFD) the development, it becomes the important research direction that the value simulation result is apply to design the automatic vertical turn guidance system. The research of automatic vertical turn guidance system mobile mechanism is used in the paper. Uses the value simulation method, on the one hand, experimental resources and the development time of the new product can be reduced; On the other hand, it may obtain the mobile characteristic detail with difficulty from the experiment.The CFD software Fluent is applied in the paper to study the interior flow of the automatic vertical turn guidance system, The main content is represented as follow:1. The research results of the automatic vertical turn guidance system in home and abroad are outlined , the research of the flow field essential method are narrated in the paper.2. The automatic vertical turn guidance system structures are introduced,the work principle of the slanting hydraulic system tool control and the control mode are elaborated in the paper.At the same time, the guidance set of mechanics performance are analyzed.3. Considered complexity in the revolves drilling tool the guidance set of curved surface, the modelling software Pro/E is used to bulid the interior flow of the automatic vertical turn guidance system, the guidance set of entity modelling process are narrated in the paper, then the overall modelling is used in the Gambit to in carries on the processing division grid. The grid production technology is briefly introduced in the paper, the eight kinds of current capacities operating modes flowing are used in the paper by the Fluent and the result of the three dimensional rapids flow field analysis are obtained, including the static pressure distribution map, the total pressure distribution map as well as the velocity vector distribution map and so on, the designs of revolved drilling tool are optimizde by providing the correlation data in the paper.4. The turbulent current and the computation hydromechanics development in the present situation and in the project application are summarily introduced, the computation models are detailly introduced, The CFD software—Fluent is applied to simulate the three dimensional compressible turbulence current , the region and the boundary condition are introduced in the paper. In the actual project widespread application RNG the k- epsilon rapids model are used by analyse,The limited volumetric methods are used to separate the governing equation,and the staggered-mesh depositing variable are used, then the SIMPLE algorithm is applied ,and the computation results are carried on analysis and research in the paper.It provides the certain theory basis that the computation research results are applied to design revolved drilling tool.It has the certain instruction significance to the further experimental study.