压接导线应用棘爪型工具以防压力不当引起松动。
Catch pawl type tools shall be necessary for crimp wire, thus avoiding looseness caused by inappropriate press.
井压较低时，关闭环型防喷器，使油管和接箍强行通过环型防喷器胶芯。
Close the annular blowout preventer as the well pressure is relatively low and force oil pipes and couplings to pass through rubber core of the annular blowout preventer.
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