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《Xinjiang Oil & Gas》 2006-01
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FINDING OUT THE LOCATION OF CASING DESTROYED FAST AND EXACTLY BY USING THE RULE OF STATIC TEMPERATURE GRADIENT

Wang tao,Chen jun,Rong ning,Wang jing,et al.Exploitation department of Tarim Oilfield Company,Kuerle,xinjiang 841000  
Casing destroying is one of the most familiar malfunctions during oil and gas well production.After the casing is destroyed,slight destroying will affect the natural production of oil and gas wells,bad destroying will make wells abandon.Water of other layers generally enter into well bore through the place of leakage,enhancing the backpressure of production liquid column,result in wells production reduce,so much that production will stop.How to find out effectively the place of leakage of casing is the first condition of well workover and sealing leakage.In Tarim H oilfield,the wells whose casing is destroyed have increased in recent years,and the production of oil wells reduced heavily.During producing,we find out the the place of leakage of wells whose casing is destroyed exactly by using the rule of static temperature gradient,and make workover base on this,and solve the problem of wells production stopping due to casing destroying,make oil wells restore production,and offer a guide for finding leakage of casing destroyed in similar oil fields.
【CateGory Index】: TE358
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