Wax-proof condensation-reducing cool temperature convey agent

Abstract

The invention relates to a wax-preventing and decondensing cooling agent for thin oil wellbore and external transportation pipelines. Wax crystal dispersants are added to crude oil to control the deposition of wax on oil pipes, sucker rods and external transportation pipelines. Significantly lower the freezing point of crude oil, alleviate wax deposition in oil wells, and ensure normal production of high-wax wells. A variety of high molecular polymers are used to link wax-friendly straight-chain saturated hydrocarbon groups similar to the paraffin structure contained in crude oil on the straight chain of the high polymer, forming small wax balls with a diameter of about 0.03mm suspended in the light components of crude oil Among them, the structural strength is reduced, and it is difficult to form a network structure with each other, so the low-temperature fluidity is also improved, and the freezing point is also lowered.

Description

Technical field: [0001] The invention relates to a chemical agent used for wax prevention in well shafts of thin oil wells, cold transportation of pipelines, decondensation and cold transportation of external transportation pipelines, energy saving and consumption reduction. Background technique: [0002] At present, the types of wax removal and prevention measures for oil wells can be divided into three types: electric heating wax removal, mechanical wax removal, and chemical wax removal and prevention. Electric heating is the most effective measure for wax removal and prevention, but there are disadvantages such as high cost and unsafety; mechanical wax removal is likely to cause problems such as stuck wells and worn oil pipes; most of the organic solvents in chemical wax removers use mixed benzene and wax to remove wax. Light hydrocarbons, wax removal effect is very good. The disadvantages are flammable, explosive, high price, high toxicity, large dosage, and complicated...

AI Technical Summary

Problems solved by technology

Electric heating is the most effective measure for wax removal and prevention, but there are disadvantages such as high cost and unsafety; mechanical wax removal is likely to cause deficiencies such as stuck wells and worn oil pipes; organic solvent wax removal in chemical wax removers mostly uses mixed benzene and Light hydrocarbons, good wax removal effect

The disadvantages are flammable, explosive, high price, high toxicity, large dosage, and complicated dosing process

[0003] At present, crude oil pumping mostly adopts segmented fixed-point heating for oil transfer, which not only wastes a lot of energy required for heating, but also builds heating pump stations in segments, which is also very troublesome for the management of oil pipelines

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