Research Facility And Erosion Performance Of Completion String Nitrogen Drilling Wellhead

Nitrogen gas drilling technology is part of drilling technology, is a high-tech engineering better underbalanced drilling technology, But in the drilling process, erosion and corrosion caused by the interaction of the wellhead, underbalanced equipment, drill pipe, casing and short-term damage to the ground pipeline failure, which need to find a way to effectively solve the nitrogen drilling and completion process erosion failures. So this paper nitrogen drilling and completion string material properties of the wellhead and erosion problems.Because nitrogen drilling and completion process, the erosion caused by the action of the wellhead, underbalanced devices, short-term damage to the drill pipe, casing and ground pipeline failure, the need for erosion test device to study the conditions of the different environmental conditions wellhead manufacturing materials(influence of erosion and features include a variety of anti-erosion design alloy, carbide coatings, Stone, etc.), a clear erosion mechanism wellhead apparatus. Erosion gives suggestions for oilfield wellhead to address the erosion of nitrogen drilling and completion process failures, which is of great importance for the successful development and production of oil field safety.In this paper, the mechanism by erosion of the wellhead equipment analysis, erosion experimental setup for the different conditions of the material erosion simulation experiments and combining experimental study proposed design wellhead erosion prevention measures for improvement and optimization of surface treatment to strengthen process, reduce erosion hazards. And based on the establishment of erosion test data and quantitative determination of the model to provide a reliable technical basis for the safe implementation of nitrogen drilling and completion technology to ensure safe development of oil fields.