Study On Erosion Wear Law And Application Of Drilling Fluid Blast Prevention Device

In order to further improve the automation of the wellsite and strengthen the HSE management to prevent the drilling fluid from splashing out of the column when it is connected to a single root,the drilling company began to use the drilling fluid blowout prevention device.But the life of the drilling fluid blowout preventer of erosion due to the drilling fluid,continuous work about 36 hours,there will be poorly sealed case,it must re-replacement of the blowout preventer,increased the cost of drilling,reduce Work efficiency.Therefore,it is of practical significance to study the service life of drilling fluid anti-splash device.The content of this paper is the analysis of the situation of drilling fluid blowout preventer worn out by drilling fluid and the optimization design of the device structure.Using the theory of computational fluid dynamics and material erosion wear theory,combined with the actual working conditions of erosion wear in the device,he wear mechanism of the internal structure of the device affected by drilling fluid erosion was established.BOP drilling fluid flow field inside the device are simulated using fluent software,a theoretical model of the device,the simulated drilling blowout preventer apparatus internal flow field distribution,obtained by numerical calculation of the flow field inside the blowout preventer drilling apparatus The velocity distribution characteristics and pressure distribution characteristics analyze the influence of the flow state and velocity on the structure.Conclusion Institute synthesized using internal structure drilling blowout preventer has been optimized to improve,two companies drilling crew and the drilling test was carried out to promote the use,in the actual production process,the service life of the device by more than 30%,to Improve work efficiency and reduce the cost of drilling wells.