Recovery Envelope Checker — China Welong

Recovery envelope checker

Enter your fish and well figures. This checks them against the four dimensions that decide recovery — clearance, pull, temperature and connection — across the China Welong fishing and milling line.

Line supplies rotary-shouldered API connections gauged to API Spec 7-2.

Indicative only. Tool outside-diameter band across the line is 79–425 mm; jar tables are rated to a 150 °C highest working temperature. China Welong verifies every envelope in-house against your casing and fish data before quoting.