A Tubular Jar is a type of mechanical jar used particularly during operations where there is a potential for debris ingress that may prevent critical jar manipulation. It performs the same function as the Spang Jar, but with a key difference: the Tubular Jar has holes in its body that allow fluid bypass. In situations where a Link Jar might lock up or buckle at full stroke in a tubing with debris, a Tubular Jar could allow the debris to pass through it and still manage to jar the tool string.
