Research On Antisepticize And Antiscaling For Inflowing And Gathering Well-sinking

Corrosion of metals is an extremely severe damage factors in modern industry and life. Corrosion and scaling problems of oil and gas field production system, was one of the technical problems that has been plagued by oil and gas field development and the entire oil and gas industry level enhancement and development.The research works of investigation and survey to corrosion and encrustation in oil-water well at home and abroad the proofing status of the wells is made clear ,correlated agent samples in industry water treatment plants inland are collected. The corrosion encrustation on site in some wells is investigated, the status quo and degree of the corrosion is analyzed , the outcome from encrustation is taken apart,and the types of encrustation are determined in the north of the Cha petroleum production in HuaBei OilField. After representative water quality analysis,trend predictionfor encrustation,corrosion analysis and encrustation condition assay,the main factors and their origins are found out, the corrosion causes are made clear. After these studies,a new effective well anti-encrustation agent and inhibitor is found,a new anti-encrustation with magnetism for oil-water wells and a new inner antisepsis coating for rodline and vitta is bring forward. By test research and economy estimate into kinds of protection techniques including chemical agent antiseptic and anti-encrustation, withstand corrosion material antiseptic and process anti-encrustation, a set of economic and practical solutions and reliable technique support are determined to cut down the velocity of corrosion and encrustation and crude oil production cost.This topic has been carried on the research analysis of water and sewage to mix ,and the screening test of inhibiter and antiscale for oil-water wells. It also been carried on the compatibility testing of the inhibiter and antiscale, and taken appropriate field implementation plan according to the actual situation , allowing it makes good effect in Cha4 and Cha19 fault block Oil wells, has an obvious economic benefit and social benefit.