YSJ type hydraulic up jar
YSJ type hydraulic up jar is a kind of hydraulic jar, which can achieve stepless adjustment of upward jarring tonnage. The delay time range is 30s ~ 90s and the temperature range is -20 to 150 ℃. In combination with the ZJS type accelerator, a more pronounced shock effect can be obtained. In combination with the KXJ type fishing bumper sub or the BXJ type lubricated fishing bumper sub, up and down shocks can be achieved. When used alone, it can be used for upward jarring releasing operation in the fishing operation or coring operation. The tool can be commonly used for coring, well repair, fishing and other operations.