Curing tank for preparing water shutoff and profile control agent

Abstract

The invention provides a curing tank for preparing a water shutoff and profile control agent, which solves the problem of overlarge viscosity loss in a process of preparing the water shutoff and profile control agent by an existing curing tank for preparing the water shutoff and profile control agent. The curing tank for preparing the water shutoff and profile control agent, provided by the invention, comprises a tank body with an inner cavity, and a stirring unit arranged in the inner cavity of the tank body, wherein the stirring unit comprises a rotating shaft, and at least one layer of blade group; the upper part of the rotating shaft is rotatably arranged on the tank body around an axial line of the rotating shaft, each layer of blade group comprises one or more blades located in a plane vertical to the axial direction of the rotating shaft, each blade is fixedly connected to the rotating shaft, and the outer wall surface of each blade, which faces towards the rotating direction of the rotating shaft, is parallel with the axial line of the rotating shaft. By adopting the curing tank for preparing the water shutoff and profile control agent, provided by the invention, the viscosity of the water shutoff and profile control agent in the preparation process can be lowered.

Description

technical field [0001] The present application relates to the field of water plugging and profile control of oil-water wells in oil production sites, in particular to a maturing tank for preparing water plugging and profile control agents. Background technique [0002] In the middle and late stages of oilfield development, supplementing formation energy by water injection is the main measure adopted by most oilfields in my country. In order to improve the water injection effect and the ultimate recovery of the oilfield, it is necessary to take timely measures for water plugging and profile control. For water injection wells, due to the heterogeneity of the formation, the water absorption of each layer of the formation is unbalanced, and the water absorption of each part of each layer is different. Aiming at the uneven water absorption of the formation, in order to improve The sweep coefficient of injected water needs to block the high permeability layer with strong water ab...

AI Technical Summary

Problems solved by technology

Practice has proved that when the water plugging profile control agent is prepared by using the existing technology, it is found that the viscosity loss of the water plugging profile control agent is relatively large during the preparation process, so that the gel viscosity and gel strength of the water plugging profile control agent are not good, which may cause Poor effect of profile control and water shutoff

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