An experimental method for simulating well killing during flooding

Abstract

The invention relates to an experimental method for simulating well killing during overflow. First, assemble the experimental device, second, the drilling fluid positive circulation experimental method, third, the gas overflow process experimental method, fourth, the formation liquid phase fluid experimental method, fifth, the gas-liquid two-phase fluid overflow experimental method, you can Realize the well killing simulation experiment of the driller method, the well killing simulation experiment of the engineer method, and the well killing simulation experiment of the reverse circulation method. Beneficial effects are: the present invention realizes driller's method simulation experiment, engineer's method simulation experiment, and reverse circulation pressure simulation experiment through specially designed experimental device, which can not only stimulate students' enthusiasm for learning, improve learning efficiency, but also deepen students' understanding of well killing methods. It can also improve students' engineering practice ability, master the specific well killing process of the three well killing methods, so as to understand the advantages and disadvantages of the three well killing methods, and lay a solid foundation for future work to deal with emergencies such as overflow well kicks. Base.

Description

technical field [0001] The invention relates to an experimental method in the field of oil and gas development, in particular to an experimental method for simulating well killing during overflow. Background technique [0002] After overflow and kick occur, the most important treatment method is to kill the well. First, the fluid that invaded the wellbore is discharged, and the contaminated drilling fluid is discharged, and then the weighted drilling fluid is used to re-establish the pressure balance at the bottom of the well. Since the students have no access to overflow and well kick during the production practice, they will not see how to kill the well, let alone perform related operations. At present, the well killing knowledge in the overflow process is only theoretically explained at home and abroad, and there is a lack of relevant simulation teaching and experiment methods, lack of opportunities for hands-on practice, and students' understanding is not deep enough. ...

AI Technical Summary

Problems solved by technology

The problem is that it is not specially used for well killing simulation after overflow and well kick, so it cannot bring too good effect to students' understanding of well killing

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