为解决油田修井作业落地油污染问题，研制出一种在不压井的前提下进行作业的防喷作业机。
To solve the pollution problem of dropping crude during field workover operation, a type of blowout controlling unit was researched and manufactured without the prerequisite of well control.
为解决油田修井作业落地油污染问题，研制出一种在不压井的前提下进行作业的防喷作业机。
To solve the pollution problem of dropping crude during field workover operation, a type of blowout controlling unit was researched and manufactured without the prerequisite of well control.
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