Weather succeed or not in oil well water shutoff is affected by many facts.
油井堵水的成功与否受多因素控制。
But the performance characteristics of common cement have influence on the further improving economic benefit of oil well water shutoff.
但普通油井水泥由于其性能特点，影响了堵水经济效益的进一步提高。
Production theory and processes of modified urea-formaldehyde resin used in oil well water shutoff and some influence on product performance resulted by main factor in the production are introduced.
介绍了适用于油田油井堵水用的改性脲醛树脂的生产原理和工艺，以及生产中的关键因素对产品性能的影响。
The mechanism of water shutoff measure of oil well and effective factors are dis-cussed here, the effect of water shutoff and the principle of choosing water shutoff formation are also stated.
讨论了油井堵水措施的机理及影响因素，阐述了堵水的作用及堵水井、层选择的原则。
The mechanism of water shutoff measure of oil well and effective factors are dis-cussed here, the effect of water shutoff and the principle of choosing water shutoff formation are also stated.
讨论了油井堵水措施的机理及影响因素，阐述了堵水的作用及堵水井、层选择的原则。
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