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Drilling Jars

PETROZHR's Drilling Jar can integrate the mechanical and hydraulic. The up jarring can be acted by hydraulic as to realize the stepless control of up jarring tonnage. The lock mechanism designed specially can avoid the mistaken jarring of up. The down jarring can be acted mechanically. It can adopt the new special material for higher property and safety. It can be used for directional hole, deep hole and so on.

Classification:

Rate of Penetration Ehancement Tools

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Detailed Description

APPLICATION

FEATURES AND BENEFITS

1. The stepless hydraulic tonnage control precisely matches jarring force to downhole sticking resistance (e.g., low tonnage for soft formations to protect casing, high tonnage for hard rock fracturing), increasing success rates by 40% versus conventional jars.

2.Dual Safety Enhancement, Anti-misfire locking + H₂S-resistant materials:

Reduces drill string failure risks caused by accidental jarring.
Prevents Sulfide Stress Cracking (SSC) in sour wells, extending tool life by 30%.

3.Lower Operational Costs

Reduced tripping frequency: Hydraulic-mechanical synergy handles multiple stuck types, resolving 90% of incidents in a single run, cutting NPT by 25%.
Low maintenance: Modular design enables rapid seal replacement, slashing repair time by 50%.

4.Reliability in Deep/Special Wells
Maintains ≥95% jarring force transmission efficiency in ultra-deep wells (>4,500m TVD). Stepless tonnage control adapts to directional wells (>60° inclination), preventing casing damage from eccentric abrasion.

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