Product Description
QUICK PUMP-IN OVERSHOT
Roschen's overshots are an integral part of the Q Wireline system. Once the inner-tube is full of core, the overshot is lowered (or pumped-in for an inclined-hole) to the bottom of the hole. Its heavy-duty lifting dogs grab a secure hold at the top of the inner-tube assembly.
For maximum productivity in underground or pump-in applications, the Quick Pump-In Overshot provides significantly improved pump-in rates with dual pump-in lip-seals; as well as new 'V-Lip' pump-in seals in NQ and HQ sizes. The variable profile of the 'V-Lip' seal provides improved performance and accommodates both standard wall and V-Wall drill rods when used with the new Roller Latch™ underground head assembly.
In addition, this overshot incorporates the proven Roschen "Landing Indicator" ball and bushing. The ball and bushing provide a pump-in valve, a bypass valve, and a landing indicator pressure signal.
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