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Rapid dissolving device for chemical agent for oil displacement and dissolving method

A technology of chemical agents and dissolving devices, which is applied in the field of quick dissolving devices for oil-displacement chemicals, which can solve problems such as the inability to prevent stratification and crystallization of oil-displacement agents, and the inability to realize rapid dissolution and heating of oil-displacement agents.

Inactive Publication Date: 2021-09-07
CNOOC ENERGY TECH & SERVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention overcomes the deficiencies in the prior art. The existing self-contained agitation and dissolving tank cannot realize rapid dissolution and heating dissolution of the oil displacement agent, and cannot prevent the problems of stratification and crystallization of the oil displacement agent, and provides a A rapid dissolving device for oil-use chemical agents and a dissolving method thereof, the device can realize real-time adjustment of the dissolution rate of oil-displacement chemical agents and fast and sufficient dissolution, prevent stratification or crystallization of oil-displacement chemical agents, and realize a top-down chemical agent system constant concentration

Method used

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  • Rapid dissolving device for chemical agent for oil displacement and dissolving method
  • Rapid dissolving device for chemical agent for oil displacement and dissolving method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A quick dissolving device for chemical agents for oil displacement, comprising an upper top cover 8, a protective base 13, an inner tank 18, an outer tank 19 and an electric heating device 16,

[0032] The inner container 18 is sleeved in the outer container 19, and an overflow channel is formed between the outer wall of the inner container 18 and the inner wall of the outer container 19. An electric heating device 16 is arranged on the outer wall of the outer container 19, and a protective device is provided outside the electric heating device 16. The base 13 and the upper top cover 8 are sealed and connected with the protection base 13 by fixing bolts, and the upper top cover 8 is provided with a liquid inlet 4 which runs through the upper top cover 8, and the liquid inlet 4 is connected with the inner container 18, and the inner container On the side wall of 18, be evenly provided with inner bag liquid outlet 17, be evenly provided with baffle plate 14 in the inner ba...

Embodiment 2

[0034] On the basis of Embodiment 1, the first outer cavity baffle 20 and the second outer cavity baffle 21 are installed in the middle of the flow passage, and the top end of the first outer cavity baffle 20 and the top end of the second outer cavity baffle 21 All are connected with upper top cover 8, and the distance between the bottom of the first outer cavity baffle 20 and the bottom of the second outer cavity baffle 21 and the inner wall of the outer bladder 19 is 8-12cm.

[0035] The distance between the bottom end of the first outer cavity baffle 20 and the bottom end of the second outer cavity baffle 21 and the inner wall of the outer bladder 19 is 10 cm.

[0036] The number of baffles 14 is 4-6, and the distance between the baffles 14 and the upper top cover 8 or the bottom of the liner 18 is 8-12cm.

[0037] The number of baffles 14 is five, and the distance between the baffles 14 and the bottom of the upper top cover 8 or the inner container 18 is 10 cm.

Embodiment 3

[0039] On the basis of embodiment two, the quantity of inner bag liquid outlet 17 is 3-5, and the width of inner bag liquid outlet 17 is 12-16cm, on inner bag liquid outlet 17, install filter screen 15, use Crystals formed during dissolution were filtered.

[0040] A gasket is arranged between the upper top cover 8 and the protection base 13 , and the fixing bolts pass through the gasket to connect the upper top cover 8 and the protection base 13 .

[0041] The liquid inlet 4 is connected to the liquid suction pump 1 through the oil displacing agent adding pipeline 3 , and a liquid inlet valve 2 is arranged on the oil displacing agent adding pipeline 3 .

[0042] The liquid outlet 7 is connected with the oil displacing agent output pipeline 5, and the oil displacing agent output pipeline 5 is provided with a liquid outlet valve 6.

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Abstract

The invention provides a rapid dissolving device for a chemical agent for oil displacement and a dissolving method. An inner container is sleeved with an outer container, an overflowing channel is formed between the outer wall of the inner container and the inner wall of the outer container, an electric heating device is arranged on the outer wall of the outer container, a protection base is arranged outside the electric heating device, an upper top cover is connected with the protection base in a sealed mode through fixing bolts, a liquid inlet penetrating through the upper top cover is formed in the upper top cover and communicated with the inner container, inner container liquid outlets are evenly formed in the side wall of the inner container, baffles are evenly arranged in the positions, between the liquid inlet and the inner container liquid outlets, of the inner container, a liquid outlet penetrating through the protection base and the outer container is formed in the upper portion of the protection base and the upper portion of the outer container, and the liquid outflow direction of the liquid outlet is opposite to that of the liquid outlet of the inner container. The device can realize real-time adjustment of the dissolving speed of the chemical agent for oil displacement and rapid and sufficient dissolution, prevent layering or crystallization of the chemical agent for oil displacement, and further realize constant concentration of the agent system from top to bottom.

Description

technical field [0001] The invention relates to the technical field of oil exploitation, and more specifically relates to a quick dissolving device and a dissolving method of chemical agent for oil displacement. Background technique [0002] At present, the dissolving device for offshore oil flooding chemicals is mainly a dissolving tank with its own agitation. 30 minutes. In order to ensure normal construction, the chemical agent system needs to complete the dosing and dissolution within 30 minutes. For polymers, gels, chemical flooding systems that are difficult to dissolve, and chemical flooding systems that are easy to settle, the During the dissolution process of the chemical system, it is easy to form crystallization, stratification and insufficient dissolution in the dissolution tank, which seriously affects the chemical flooding effect. [0003] On-site oil displacement chemical agents mainly use self-contained stirring dissolution tanks to realize sample preparatio...

Claims

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Application Information

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IPC IPC(8): B01F1/00B01F15/06
Inventor 郑继龙王锦林赵军张润芳杨万有王宏审陈平史锋刚王晓超魏俊胡雪于兆坤赵传勋左清泉缪油花
Owner CNOOC ENERGY TECH & SERVICES
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