Preparation process of low-density laminated material

A preparation process and low-density technology, which is applied in the direction of drilling composition, production fluid, wellbore/well components, etc., can solve the problems of high cost of use, environmental pollution, etc., and achieve low equipment and energy consumption and short process time , the effect of reducing manpower waste

Inactive Publication Date: 2019-02-26
CHONGQING CHANGJIANG RIVER MOLDING MATERIAL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation process of a low-density coating material to solve the problems of increasing the cost of use and causing environmental pollution due to the need to add a carrier fluid when the proppant is used

Method used

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  • Preparation process of low-density laminated material
  • Preparation process of low-density laminated material
  • Preparation process of low-density laminated material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Take the apparent density as 1.05g / cm 3 100 parts of ceramsite with a particle size of 20 / 40. Heat the ceramsite to 190°C and pour it into a bowl-shaped mixing casserole. When the temperature reaches 180-190°C, add 2 parts of epoxy resin. When the temperature reaches 160- Add 0.2 parts of curing agent T31 and stir at 180°C, add 0.8 parts of N-dodecyltrimethylsilane when the temperature reaches 150-160°C, and stir at 80-130°C, add 2 parts of propylene glycol Stir the polymer with 0.02 parts of dibutyltin dilaurate, add 0.9 parts of isocyanate when the temperature reaches 60-110°C, stir, and take out the pot when the temperature reaches 40-70°C.

Embodiment 2

[0050] Take the apparent density as 1.05g / cm 3 100 parts of ceramsite with a particle size of 20 / 40. Heat the ceramsite to 190°C and pour it into a bowl-shaped mixing casserole. When the temperature reaches 180-190°C, add 2 parts of epoxy resin. When the temperature reaches 160- Add 0.2 parts of curing agent T31 and stir between 180°C, add 1.6 parts of N-dodecyltrimethylsilane when the temperature reaches 150-160°C, and stir when the temperature reaches 80-130°C, add 2 parts of propylene glycol Stir the polymer with 0.02 parts of dibutyltin dilaurate, add 1.5 parts of isocyanate when the temperature reaches 60-110°C, stir, and take out the pot when the temperature reaches 40-70°C.

Embodiment 3

[0052] Take the apparent density as 1.5g / cm 3 100 parts of ceramsite with a particle size of 30 / 50. Heat the ceramsite to 200°C and pour it into a bowl-shaped mixing casserole for stirring. When the temperature reaches 190-200°C, add 5 parts of phenolic resin and stir until the temperature reaches 170- Add 1.5 parts of hexamethylenetetramine and stir between 180°C, add 0.6 parts of JG-1 and stir when the temperature reaches 150-180°C, add 5 parts of ethylene glycol for polymerization when the temperature reaches 80-130°C Stir with 0.005 parts of dibutyltin dilaurate, add 0.75 parts of a mixture of triethylamine and triethylenetetramine when the temperature reaches 180-190 ° C, add 3.5 parts of isocyanate and Stir 0.4 parts of JG-1 and take it out of the pot when the temperature reaches 40-70°C.

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Abstract

The invention belongs to the technical field of exploitation of fluid minerals such as petroleum, natural gas and shale gas, and particularly discloses a preparation process of a low-density laminatedmaterial, and the preparation process comprises the following steps: (1) heating and stirring an aggregate; (2) adding resin and a curing agent into the ceramsite obtained in the step (1), and stirring to form an inner-layer resin film; (3) after the temperature reaches 60-130 DEG C, adding polyhydric alcohol resin, a catalyst, isocyanate and an amine additive into the mixture obtained in the step (2), and stirring to form an outer-layer resin film; (4) after the temperature reaches 40-70 DEG C, performing discharging to obtain the low-density laminated material; wherein a drag reducer is added in the step (2) or in the step(3), or the drag reducer is added both in the step (2) and in the step (3), and the content of the drag reducer is 0.8-2% of the mass of the aggregate. The preparationprocess is mainly used for mining the petroleum and the natural gas, and the problems that the use cost is increased and the environmental pollution is caused due to the fact that a carrying liquid needs to be added during use of a propping agent are solved.

Description

technical field [0001] The invention belongs to the technical field of fluid mineral exploitation such as oil, natural gas and shale gas, and specifically discloses a preparation process of a low-density coating material. Background technique [0002] Proppants are made by coating membrane materials on the surface of aggregates, and proppants are widely used in hydraulic fracturing technology. [0003] Hydraulic fracturing technology has been relatively mature at home and abroad. Petroleum fracturing proppant is one of the essential items in the fracturing process. Its performance will directly affect the effect of hydraulic fracturing. The apparent density is the key to evaluate the performance of proppant. One of the important indicators, the lower the apparent density, the lower its relative density relative to the fracturing fluid. When the proppant is mixed with the fracturing carrier fluid, the lower the apparent density, the easier it is to suspend in the fracturing f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/80C08G18/48
CPCC08G18/48C09K8/805
Inventor 熊帆熊鹰王正力陈秋庆
Owner CHONGQING CHANGJIANG RIVER MOLDING MATERIAL GRP
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