技术报告

Hydra-Jar AP Drilling Minimizes NPT and Avoids Sidetracking, Improving Drilling Efficiency

已发表: 08/14/2014

技术报告

Hydra-Jar AP Drilling Minimizes NPT and Avoids Sidetracking, Improving Drilling Efficiency

已发表: 08/14/2014

The double-acting hydraulic drilling jar enables the driller to jar up or down and vary impact force to free stuck drillstring components, minimizing NPT and avoiding sidetracking.

地点

Kazakhstan, 亚洲

Details

Chinarevskya
Kazakhstan

Lithology
Sandstone, shale

Pilot hole size
8 1/2 in
Enlarged hole size
9 1/4 in

Reamed interval
877 m

Drilled interval
261 m

Total circulating time
107.3 h

Flow rate
300-500 galUS/min

背景

An operator planned to drill through the abrasive sandstone and shale lithology of Chinarevskya, Kazakhstan, while maintaining orientation throughout the jarring operation.