Paraffin-cleaning antiseptic corrosion inhibitor

A scale inhibitor and wax removal technology, which is applied in the direction of drilling compositions, chemical instruments and methods, etc., can solve the problems of incompatibility between wax removal and viscosity reduction agents and anti-corrosion and anti-scaling agents, and meet the requirements of anti-corrosion and anti-scaling, The effect of enhanced oil recovery
CN100560681CActive Publication Date: 2009-11-18PETROCHINA CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PETROCHINA CO LTD
Publication Date
2009-11-18
Patent Text Reader

Abstract

The invention relates to a wax-removing anti-corrosion and anti-scaling agent for oil wells, which is applied to oil wells for wax removal, anti-corrosion and anti-scaling. It is characterized in that: the weight ratio of raw material components is: polyethylene polyamine polyoxypropylene polyoxyethylene ether: 3.4- 12%; dodecyl dimethyl benzyl ammonium chloride: 13.5-17%; FC-NO1 fluorocarbon surfactant: 0.02-0.10%; formaldehyde: 4.5-9.5%; urotropine: 3.2-7.4 %; sodium hydroxyethylidene diphosphate: 15-25%; water: 35-58%. Prepared according to the preparation process. The wax-removing, anti-corrosion and scale-inhibiting agent applied to oil wells requiring wax removal, anti-corrosion and anti-scaling has a good effect and meets the requirements of wax-removing, anti-corrosion and anti-scaling for oil wells.
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Description

technical field

[0001] The invention relates to a wax-removing, anti-corrosion and scale-inhibiting agent for oil wells, in particular to a wax-removing, anti-corrosion and scale-inhibiting agent formula for oil wells and a preparation method thereof. Background technique

[0002] At present, to effectively inhibit the corrosion and scaling of oil wells, a better method is to regularly add corrosion and scale inhibitors to the oil wells. At the same time, some oil wells have high wax content and thick oil, and normal production needs to add wax-removing and viscosity-reducing agents for maintenance. However, the compatibility of these two types of medicaments is poor, and there is a phenomenon that they cannot be well compatible. Simultaneously applying the effect of mutually reducing medicaments is not conducive to the joint function of the two types of medicaments, which brings great difficulty to production management. Contents of the invention

[0003] The object of ...

Claims

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