Parallel double-tube oil displacement core holder

Abstract

The invention discloses a parallel double-tube oil displacement core holder which comprises a barrel (1), a plurality of confining pressure cavities (2) are formed in the barrel (1) and arranged in the circumferential direction of the barrel (1), a confining pressure injection channel (18) and an air emptying channel (19) are formed in the side wall of the barrel (1), and a first plug (14) is arranged at one end of the barrel (1), a displacement fluid injection channel (13) is formed in the first plug (14). A displacement fluid injection channel (13) is arranged at one end of the cylinder (1) and communicated with the confining pressure cavities (2), a second plug (8) is arranged at the other end of the cylinder (1), and a fluid collection channel is arranged in the second plug (8) and communicated with the confining pressure cavities (2). According to the parallel double-tube oil displacement core holder, a parallel double-tube oil displacement experiment of a single holder under a high-temperature and high-salt experiment condition can be realized.

Description

technical field [0001] The invention relates to the field of oil exploitation experimental equipment, in particular to a parallel double-pipe oil displacement core holder. Background technique [0002] In the field of petroleum engineering, each technical theory requires indoor physical simulation experiments or digital simulation experiments before it is put forward and before field tests are carried out. Combined with the researched mine reservoir conditions, with the help of indoor physical simulation experiments and digital simulation experiments, on the one hand, we can further understand the proposed theory and technology, and clarify its advantages and disadvantages; Practical construction instructions. The physical simulation experiment of core flooding is an important means for the research of oil recovery technology in the field of petroleum engineering, and the core holder is an essential and important experimental device for the physical simulation experiment of...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of complex structure of the existing parallel double-pipe oil-displacement core holder, the present invention provides a parallel double-pipe oil-displacement core holder. The parallel double-pipe oil-displacement core holder has a simple structure and multiple The pressure chambers are all located in the same barrel, which solves the disadvantages that the current core holders are not resistant to high temperature and high salt and can only be used for single-pipe oil flooding experiments. When multiple core holders are driven in parallel, the disadvantages of large experimental errors

Images