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Device and method for measuring pitch particle profile control performance parameters

A technology of asphalt particles and parameters, which is applied in the field of measurement devices for asphalt particle profile control performance parameters, can solve the problems of large difference in rules and easy accumulation of asphalt particles to block the entrance wall of the columnar core to be tested, etc., achieving good effect, simple operation, The effect of reducing the error

Inactive Publication Date: 2014-03-12
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the present invention provides a device and method for measuring performance parameters of asphalt particle profile control, which solves the problem that asphalt particles are easy to gather and block the entrance of the columnar core to be tested during the indoor asphalt particle profile control experiment. In order to solve the problem of the large difference between the indoor experiment and the real underground reservoir, and further improve the application technology of particle profile control in the indoor experiment

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  • Device and method for measuring pitch particle profile control performance parameters
  • Device and method for measuring pitch particle profile control performance parameters
  • Device and method for measuring pitch particle profile control performance parameters

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[0030] In order to make the purpose, experimental device and method of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific examples described herein are only used to explain the present invention, but not to limit the present invention.

[0031] like figure 1 As shown in the figure, the device for measuring the profile control performance parameters of asphalt particles provided by the present invention includes a large-diameter threaded pipe 3, a turbulence generating groove 4, a simulated perforation unit 5, a simulated near-wellbore formation unit 6, and a columnar core to be measured. 7; Turbulence generating slot 4, simulated perforation unit 5, simulated near-wellbore formation unit 6, and columnar core 7 to be measured are all cylindrical structures with the same end face diameters, and each end face is connected end to end in...

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Abstract

The invention relates to a device and method for measuring pitch particle profile control performance parameters. The device mainly comprises a screwed pipe with large drift diameter, a turbulent flow generation tank, a perforation simulating unit and a near-wellbore stratum simulating unit, wherein the turbulent flow generation tank, the perforation simulating unit, the near-wellbore simulating stratum unit, and a columnar rock core to be measured all adopt cylinder structures and have same end face diameters; all end faces are connected end to end in sequence and are clamped for fixing by a rock core clamp holder; a profile control liquid passes each part in sequence and finally enters the columnar rock core to be measured smoothly. The device and the method are safe and reliable, can relatively truly simulate the movement state of pitch particles before and after entering the columnar rock core, efficiently overcome the defects that the particles are relatively seriously blocked in a rock core fracture surface and can not be injected, and realize research and effect evaluation of indoor profile control experiments using the pitch particles.

Description

technical field [0001] The invention relates to the technical field of profile control and water shutoff in the middle and late stages of water flooding oilfields, in particular to a device and a method for measuring the profile control performance parameters of asphalt particles. Background technique [0002] In the process of water flooding development of oilfields for many years, the pore structure, mineral composition, cementation type, etc. of underground reservoirs will change to varying degrees, especially in the case of high injection and production intensity, some of which have the characteristics of weak cementation and so on. The pore throat radius and cementation will increase and decrease, and the permeability of this area will increase. When the subsequent fluid passes through, it will form a dominant channel for water flooding, which will increase the water cut of the oil well. The faster the speed, the lower the water flooding swept coefficient, the higher th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/00
Inventor 李俊键李宜强董朝霞姜汉桥肖康李彦阅向刚康绍菲
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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