天然气采输过程中泄漏着火危害识别与消减措施

Pressure Determination in the Prevention of Caseing Damage by High Pressure Waterflooding

文章指出了天然气采输过程中容易泄漏的具体位置,分析了泄漏原因,对可能造成的危害进行了识别,并提出了预防措施。

In oil long--term development process , under the condltxon ot high pressure wateriloooing , casing damage has caused a growing influence . When high pressure waterflooding entering mudstone layer will form water extraction, because of the crack water filling and rock strata of the mud,its physical properties can produce major changes, mudstone layer will produce displacement under the effect of pressure difference. The size of the injection pressure directly influences the casing life. Therefore, Deterrninating reasonable surface pressure of injection wells is one of the effective means for extending service life of the casing, pressure boundary of Injection Wells should be based on rock burst pressure on oil reservoir. The burst pressure as pressure boundary of oil reservoir and casing protection is used to design the reasonable injection pressure.