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Emulsion type anti-wear and anti-drag thickening agent for fracturing and preparation method of emulsion type anti-wear and anti-drag thickening agent

A technology of emulsion type and thickener, applied in the direction of chemical instruments and methods, drilling compositions, etc., to achieve good lubricating performance, improve anti-wear and pressure bearing capacity, and reduce friction

Pending Publication Date: 2022-04-29
湖北菲特沃尔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is no related patented technology and research report using the same product, which can meet the requirements of hydraulic fracturing drag reduction and anti-wear requirements of coiled tubing

Method used

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  • Emulsion type anti-wear and anti-drag thickening agent for fracturing and preparation method of emulsion type anti-wear and anti-drag thickening agent
  • Emulsion type anti-wear and anti-drag thickening agent for fracturing and preparation method of emulsion type anti-wear and anti-drag thickening agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Add 49 parts of water into container A with agitator, start the agitator, then add 35 parts of acrylamide and 16 parts of triethanolamine oleic acid soap respectively, stir until completely dissolved, and prepare an aqueous phase.

[0047] Add 97 parts of white oil and 3 parts of Span 80 into container B with a stirrer, stir for 20 minutes until the mixture is uniform, and prepare the oil phase.

[0048] In container C with a stirrer, first add 60 parts of the above-prepared oil phase, start the agitator, then add 40 parts of the above-prepared water phase at a constant speed, and continue stirring for 30 minutes after the addition is complete to form an emulsion.

[0049] Start the agitator of reactor D, and when container C continues to stir, use the homogeneous emulsification pump to pump the emulsion into reactor D; The pump is pumped to container C; after the addition, the emulsion in container C is pumped to reactor D by a homogeneous emulsification pump for react...

Embodiment 2

[0053] Add 49 parts of water into container A with agitator, start the agitator, then add 35 parts of acrylamide and 16 parts of triethanolamine oleic acid soap respectively, stir until completely dissolved, and prepare an aqueous phase.

[0054] Add 97 parts of white oil and 3 parts of Span 80 into container B with a stirrer, stir for 20 minutes until the mixture is uniform, and prepare the oil phase.

[0055] In container C with agitator, first add 40 parts of the above-prepared oil phase, start the agitator, then add 60 parts of the above-prepared water phase at a constant speed, and continue stirring for 30 minutes to form an emulsion.

[0056] Start the agitator of reactor D, and when container C continues to stir, use the homogeneous emulsification pump to pump the emulsion into reactor D; The pump is pumped to container C; after the addition, the emulsion in container C is pumped to reactor D by a homogeneous emulsification pump for reaction.

[0057] Reactor D continu...

Embodiment 3

[0060] Add 40 parts of water into container A with agitator, start the agitator, then add 40 parts of acrylamide and 20 parts of triethanolamine oleic acid soap respectively, stir until completely dissolved, and prepare an aqueous phase.

[0061] Add 95 parts of white oil and 5 parts of Span 80 into container B with a stirrer, stir for 20 minutes until uniformly mixed, and prepare an oil phase.

[0062] In the container C with agitator, first add 50 parts of the above-prepared oil phase, start the agitator, then add 50 parts of the above-prepared water phase at a uniform speed, and continue stirring for 30 minutes to form an emulsion.

[0063] Start the agitator of reactor D, and when container C continues to stir, use the homogeneous emulsification pump to pump the emulsion into reactor D; The pump is pumped to container C; after the addition, the emulsion in container C is pumped to reactor D by a homogeneous emulsification pump for reaction.

[0064] Reactor D continued to...

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Abstract

The invention discloses an emulsion type anti-wear and anti-drag thickening agent for fracturing and a preparation method thereof, and the preparation method comprises the following steps: 1, preparation of a water phase: successively adding acrylamide and triethanolamine oleic soap into water, and uniformly mixing; step 2, preparing an oil phase, namely adding span 80 into white oil, and then uniformly stirring and mixing; step 3, preparing an emulsion, slowly adding the water phase in the step 1 into the oil phase in the step 2 in a stirring state, and circularly emulsifying for 1-3 times by using a homogeneous emulsification pump after the water phase in the step 1 is completely added into the oil phase in the step 2; and 4, polymerization reaction: putting the emulsion prepared in the step 3 into a reaction kettle with a stirrer, stirring, filling nitrogen for more than 20 minutes, adding an oxidant, heating, and slowly dropwise adding a reducing agent. When the emulsion type anti-wear and anti-drag thickening agent for fracturing is used for preparing a fracturing fluid, the thickening property is good, and the construction friction resistance is low; when used for preparing coiled tubing construction liquid, the lubricating oil has good lubricating property and strong wear resistance.

Description

technical field [0001] The invention belongs to the technical field of anti-wear and drag-reducing technology for hydraulic fracturing of oil and gas wells, and in particular relates to an anti-wear and drag-reducing thickener for emulsion type fracturing and a preparation method thereof. Background technique [0002] Hydraulic fracturing of oil and gas wells is to use surface high-pressure pumps to inject fracturing fluid containing chemical agents into the well at a displacement that greatly exceeds the absorption capacity of the formation, and then suffocate high pressure near the bottom of the well. When this pressure exceeds the ground stress near the borehole wall and the tensile strength of the rock, fractures are formed in the formation. If there are proppants such as quartz sand and ceramsite in the liquid, after the pump is stopped, the liquid will return to the ground under the pressure of the formation pressure, while the proppant will stay in the formation and f...

Claims

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Application Information

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IPC IPC(8): C09K8/68C09K8/88C08F2/26C08F120/56
CPCC09K8/68C09K8/882C08F120/56C08F2/26C09K2208/34
Inventor 张杰
Owner 湖北菲特沃尔科技有限公司
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