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Petroleum drilling auxiliary agent and preparation method thereof

A technology for oil drilling and additives, which is applied in the field of petroleum additives to achieve the effects of improving heat resistance and salt resistance, improving heat resistance, and improving heat resistance

Pending Publication Date: 2020-08-07
粤久久食品科技(江门)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a petroleum drilling aid and a preparation method thereof, to solve the problem of how to solve the problem of the petroleum drilling additive disclosed in the Chinese patent application document "A Petroleum Drilling Assistant and Its Preparation Method (Publication No.: CN109913186B)" Optimizing components, dosage, etc. to further improve fluid loss reduction and heat resistance effects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029]A kind of petroleum drilling aid, in weight part, comprises following raw material: 90 parts of modified humic acid, 25 parts of 4-hydroxyl-6-acetamido-2-naphthalenesulfonic acid, maleic anhydride acylated chitosan 12.5 parts, 7.5 parts of modified potassium hexatitanate whiskers, 1.5 parts of nonylphenol polyoxyethylene ether, 13 parts of linear polyorganopolysiloxane, 7 parts of microcrystalline wax, 4 parts of aluminum hydroxy, 450 parts of water.

[0030] The modified humic acid is obtained by modifying humic acid with polyacrylic acid and a silane coupling agent, and is specifically prepared by the following steps: dissolving polyacrylic acid in ethanol to obtain solution A; Add silane coupling agent KH550, mix evenly to obtain solution B; add humic acid to solution B, disperse evenly by ultrasonic, then raise the temperature to 75°C, react for 4 hours under stirring conditions, filter after the reaction, and dry to obtain the obtained solution Described modified hu...

Embodiment 2

[0036] A petroleum drilling aid, in parts by weight, comprising the following raw materials: 80 parts of modified humic acid, 30 parts of 4-hydroxy-6-acetylamino-2-naphthalenesulfonic acid, maleic anhydride acylated chitosan 10 parts, 10 parts of modified potassium hexatitanate whiskers, 1 part of nonylphenol polyoxyethylene ether, 14 parts of linear polyorganopolysiloxane, 6 parts of microcrystalline wax, 5 parts of aluminum hydroxy, 400 parts of water.

[0037] The modified humic acid is obtained by modifying humic acid with polyacrylic acid and a silane coupling agent, and is specifically prepared by the following steps: dissolving polyacrylic acid in ethanol to obtain solution A; Add silane coupling agent KH550, mix evenly to obtain solution B; add humic acid to solution B, disperse evenly by ultrasonic, then raise the temperature to 62°C, react for 4.3h under stirring conditions, filter and dry after the reaction is complete, to obtain The modified humic acid; wherein, th...

Embodiment 3

[0043] A petroleum drilling aid, in parts by weight, comprising the following raw materials: 100 parts of modified humic acid, 20 parts of 4-hydroxy-6-acetylamino-2-naphthalenesulfonic acid, maleic anhydride acylated chitosan 15 parts, 5 parts of modified potassium hexatitanate whiskers, 2 parts of nonylphenol polyoxyethylene ether, 10 parts of linear polyorganopolysiloxane, 10 parts of microcrystalline wax, 3 parts of aluminum hydroxy, 500 parts of water.

[0044] The modified humic acid is obtained by modifying humic acid with polyacrylic acid and a silane coupling agent, and is specifically prepared by the following steps: dissolving polyacrylic acid in ethanol to obtain solution A; Add silane coupling agent KH550, mix evenly to obtain solution B; add humic acid to solution B, disperse evenly by ultrasonic, then raise the temperature to 80°C, react for 4.2h under stirring conditions, filter and dry after the reaction is complete, to obtain The modified humic acid; wherein, ...

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Abstract

The invention discloses a petroleum drilling auxiliary agent and a preparation method thereof, and belongs to the technical field of petroleum auxiliary agent preparation. The petroleum drilling auxiliary agent is prepared from the following raw materials: modified humic acid, 4-hydroxy-6-acetamido-2-naphthalene sulfonic acid, maleic anhydride acylated chitosan, modified potassium hexatitanate whiskers, nonylphenol polyoxyethylene ether, linear polysiloxane, microcrystalline wax, hydroxyl aluminum and water. The petroleum drilling auxiliary agent is prepared through high-speed dispersion. By improving the prior art of the petroleum drilling auxiliary agent, the high-temperature and low-temperature filtration losses are remarkably reduced, and the application requirements are met.

Description

technical field [0001] The invention belongs to the technical field of petroleum additives, and in particular relates to a petroleum drilling additive and a preparation method thereof. Background technique [0002] Filtrate reducer is one of the most important additives in petroleum drilling, it plays an important role in maintaining the stability of drilling fluid performance and safe and efficient drilling. The process of free water in the drilling fluid penetrating into the formation under the action of pressure difference is called fluid loss. Excessive fluid loss often brings many adverse consequences to the drilling work. For example, the mud cake produced by high fluid loss will adhere to the On the well wall, the hydraulic diameter of the annular space between the wellbore and the drilling tool is reduced, and pipe sticking accidents are prone to occur, and the high swabbing pressure used to solve the stuck pipe will induce blowout, lost circulation and well collapse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/03
CPCC09K8/03
Inventor 张兴军
Owner 粤久久食品科技(江门)有限公司
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