Preparation method of organic/inorganic composite globules

An inorganic composite and organic technology, which is applied in the field of preparation of organic/inorganic composite pellets, can solve the problems of inapplicability, unusable formation with high temperature, brittleness and easy breakage of glass pellets, etc., and achieves good roundness of products. , uniform particle size, and the effect of improving thermal stability

Active Publication Date: 2014-01-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since graphite is a natural mineral material, glass balls cannot be used in the drilling process due to their high brittleness, while plastic balls are limited by the glass transition temperature of the polymer itself. Strata unavailable

Method used

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  • Preparation method of organic/inorganic composite globules

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Wash the computer packaging with polystyrene foam and dry it for later use;

[0033] (1) Prepare the oil phase: weigh 4.725g of the above-mentioned clean polystyrene foam, add 31.5g of styrene monomer, add 3.623g of hydrophobic nano-titanium dioxide after the dissolution is complete, ultrasonically disperse for 240min, and then add benzoyl peroxide 0.0063 G, Span 80 0.65g, mix homogeneously to obtain oil phase; polystyrene is 15% of styrene weight, hydrophobic titanium dioxide is 10% of polystyrene and styrene weight and, initiator is styrene monomer weight 0.02%, the weight of crosslinking agent is 0% of the weight of styrene monomer, and the weight of emulsifier is 2% of the sum of the weight of polystyrene and styrene monomer;

[0034] (2) Configure the dispersed water phase: add 0.48g of gelatin, 0.35g of sodium dodecylbenzenesulfonate and 0.05g of sorbitan oleate into 400ml of distilled water, and stir evenly to obtain the water phase; the weight of the dispersant ...

Embodiment 2

[0038] Wash the computer packaging with polystyrene foam and dry it for later use;

[0039](1) Prepare the oil phase: weigh 7.38g of the above-mentioned clean polystyrene foam, add 24.6g of styrene monomer, add 1.6g of hydrophobic nano-silica after the dissolution is complete, ultrasonically disperse for 60min, and then add 0.738g of peroxide Benzoyl, add 0.615g divinylbenzene, 3.198g Span-60, make the oil phase after mixing evenly; Wherein polystyrene weight accounts for 30% of styrene monomer weight, hydrophobic nano silicon dioxide weight is poly 5% of the sum of styrene and styrene weight, initiator is 3.0% of styrene monomer weight; crosslinking agent weight is 2.5% of styrene monomer weight, emulsifier weight is polystyrene weight and styrene monomer weight 10% of the sum of body weight;

[0040] (2) Configure the dispersed water phase: add 8g of polyvinyl alcohol to 100ml of distilled water and stir evenly; the weight of the dispersant is 8% of the weight of the water,...

Embodiment 3

[0044] Wash the computer packaging with polystyrene foam and dry it for later use;

[0045] (1) Prepare the oil phase: weigh 4g of the above-mentioned clean polystyrene foam, add 100% of styrene monomer, add 0.104g of hydrophobic nano-calcium carbonate after dissolution, ultrasonically disperse for 15min, add 0.5g of azobisisobutyronitrile , add ethylene glycol dimethacrylate 4g, Span 60 5.2g, and mix uniformly to obtain an oil phase; wherein the weight of polystyrene accounts for 4% of the weight of styrene monomer, and the weight of hydrophobic nano-calcium carbonate polystyrene and 0.01% of the weight of styrene monomer, the initiator is 0.5% of the weight of styrene monomer; the weight of crosslinking agent is 4% of the weight of styrene monomer, and the weight of emulsifier is the sum of the weight of polystyrene and styrene monomer 5% of

[0046] (2) Configure the dispersed water phase: add 6.6g of polyvinyl alcohol to 220ml of distilled water, then add 2.2g of sodium l...

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Abstract

The invention provides a preparation method of organic / inorganic composite globules. The preparation method comprises the following steps: dissolving polystyrene into polymerization monomer styrene, uniformly dispersing hydrophobic nanometer inorganic particles into the solution, and meanwhile, adding an initiator and a crosslinking agent, uniformly dissolving the components and uniformly dispersing the components in the aqueous solution, heating up to polymerize the monomers, performing suction filtering on the obtained solid phase, and drying to obtain the organic / inorganic composite globules. The temperature resistance of the composite globules prepared by the method is higher than that of pure plastic globules, the particle diameters are uniform, the surfaces are smooth, and the composite globules can be used as solid lubricants for drilling fluids.

Description

technical field [0001] The invention relates to a method for preparing organic / inorganic composite pellets, in particular to a method for preparing organic / inorganic composite solid lubricant pellets for drilling fluid by self-dissolution. Background technique [0002] With the development of oil exploration, the drilling depth continues to increase, and the number of cluster wells, high-inclination directional wells and horizontal wells is also increasing rapidly. Avoiding pipe sticking, reducing drill torque, and reducing drill string wear have become urgent solutions Problem, adding lubricant to the drilling fluid can effectively avoid accidents such as pipe sticking. Compared with liquid lubricants, solid lubricants are added to the drilling fluid in the form of solids to lubricate the well wall and prevent sticking and sticking. It has the advantages of convenient transportation, no fluorescence, and good lubrication performance. The currently used solid lubricants fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F112/08C08F212/08C08F2/44C08F2/20C08K3/36C08K3/22C08K3/26C08L25/06C09K8/035
Inventor 陈铖赵素丽李涛石秉忠王琳钱晓琳
Owner CHINA PETROLEUM & CHEM CORP
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