A kind of oil-absorbing resin material and preparation method thereof

A technology of oil-absorbing resin and compound, which is applied in the field of oil-absorbing resin materials and its preparation, can solve the problems of few types of oil-based drilling fluid plugging agents, affect the performance indicators of oil-based drilling fluid, and incompatibility of oil-based drilling fluid, etc., and achieve saturation The oil washing time is controllable, the oil absorption effect is good, and the plugging effect is obvious

Active Publication Date: 2018-09-11
SICHUAN KUINENG ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation cost of oil-based drilling fluid is much higher than that of water-based drilling fluid. If complex fractured formations are encountered during drilling, a large amount of oil-based drilling fluid will be lost, which will not only affect the drilling efficiency, but also cause immeasurable economic losses.
[0003] At present, the way to deal with oil-based drilling fluid lost circulation is to add plugging materials, but these plugging materials are basically developed for water-based drilling fluid systems, and there are few special types of oil-based drilling fluid plugging agents. The base plugging agent is not compatible with oil-based drilling fluid. When used in the oil-based drilling fluid system, the oil-absorbing effect is poor, the elasticity is weakened when encountering oil, the shearing is easy to break, it does not have oil resistance, and the plugging ability is weak, which affects oil-based drilling. Liquid performance index

Method used

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  • A kind of oil-absorbing resin material and preparation method thereof
  • A kind of oil-absorbing resin material and preparation method thereof
  • A kind of oil-absorbing resin material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0051] Add the dispersant polyvinyl alcohol into a reactor equipped with 500mL deionized water, stir well at 60°C to completely dissolve the polyvinyl alcohol, and cool naturally to room temperature. Add initiator benzoyl peroxide and the compound shown in the formula (IV) respectively, fully stir, the compound shown in the formula (II) and the compound shown in the formula (III) are added to the In the reactor, stir well to dissolve completely. Under the protection of nitrogen, the temperature was raised to 80 ° C, and the polymerization reaction product was obtained after 7.0 hours of reaction, wherein, in mass percentage, the mass of the compound shown in the formula (IV) was equal to the compound shown in the formula (II) and the formula ( 1.0% of the total mass of the compound shown in III), the polyvinyl alcohol quality of the dispersant is 0.3% of the total mass of the compound shown in the formula (II) and the compound shown in the formula (III), and the initiator is o...

Embodiment 6～10

[0057] Add the dispersant polyvinyl alcohol into a reactor equipped with 500mL deionized water, stir well at 60°C to completely dissolve the polyvinyl alcohol, and cool naturally to room temperature. Add initiator benzoyl peroxide and the compound shown in the formula (IV) respectively, fully stir, the compound shown in the formula (II) and the compound shown in the formula (III) are added in the reactor, stir Stir evenly to dissolve completely. Under the protection of nitrogen, the temperature was raised to 80°C, and after 7.0 hours of reaction, a polymerization reaction product was obtained, wherein the molar ratio of the compound represented by the formula (II) to the compound represented by the formula (III) was 1:1.5, in terms of mass percentage , the compound quality shown in the formula (IV) is the percentage composition of the compound shown in the formula (II) and the compound total mass shown in the formula (III) Table 2, the polyvinyl alcohol quality of the dispersa...

Embodiment 11～15

[0063] Add the dispersant polyvinyl alcohol into a reactor equipped with 500mL deionized water, stir well at 60°C to completely dissolve the polyvinyl alcohol, and cool naturally to room temperature. Add initiator benzoyl peroxide and the compound shown in the formula (IV) respectively, fully stir, the compound shown in the formula (II) and the compound shown in the formula (III) are added in the reactor, stir Stir evenly to dissolve completely. Under the protection of nitrogen, the temperature was raised to 80°C, and after 7.0 hours of reaction, a polymerization reaction product was obtained, wherein the molar ratio of the compound represented by the formula (II) to the compound represented by the formula (III) was 1:1.5, in terms of mass percentage , the mass of the compound shown in the formula (IV) is 1.0% of the total mass of the compound shown in the formula (II) and the compound shown in the formula (III), and the mass of the dispersant polyvinyl alcohol is the mass of ...

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Abstract

The invention discloses oil-absorption resin. The oil-absorption resin is a compound expressed as formula (I), wherein a is 100000-150000, b is 400000-500000, and m is 30000-35000. The oil-absorption resin is high in expansion rate in an oil-based drilling liquid system, excellent in oil absorption effect and high in plugging capability. The formula is shown in the description.

Description

technical field [0001] The invention relates to the field of functional polymer synthetic materials, in particular to an oil-absorbing resin material and a preparation method thereof. Background technique [0002] With the development of domestic shale gas wells, horizontal wells, and extended-reach wells, oil-based drilling fluids have fewer types of treatment agents, strong resistance to temperature and salt, and good lubrication and anti-slump properties for drilling. The oil-based drilling fluid has the advantages of very good reservoir protection performance and other advantages, and the utilization rate of oil-based drilling fluid is increasing year by year. However, the preparation cost of oil-based drilling fluid is much higher than that of water-based drilling fluid. If complex fractured formations are encountered during drilling, a large amount of oil-based drilling fluid will be lost, which will not only affect the drilling efficiency, but also cause immeasurable ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F222/38C09K8/035C09K8/32C09K8/42
CPCC08F220/18C08F220/1804C08F220/1812C09K8/035C09K8/32C09K8/426C08F222/385
Inventor 张太亮
Owner SICHUAN KUINENG ENVIRONMENTAL PROTECTION TECH CO LTD
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