PUMPJACK FOUNDATION LIFT

A pumpjack foundation in an active oilfield experienced significant differential settlement, resulting in an out-of-level condition that risked operational efficiency and long-term structural performance.

The structure had settled 5.9 inches on the “T” (heavier) side, creating a major elevation imbalance. The total load on the foundation was extreme—approximately 130,000 lbs from the pumpjack and equipment, plus an additional ~55,000 lbs from the slab, for a combined load near 185,000 lbs.

Several critical challenges defined the project:

• Extreme Load Conditions: ~185,000 lbs total load required lifting and stabilization.
• Severe Settlement: 5.9-inch differential settlement on the heavy side.
• High Precision Requirement: Final lift needed to be within tight tolerances to prevent misalignment or structural stress.
• Active Jobsite Constraints: Work had to be performed around installed equipment with limited access and confined working space.

A local contractor was engaged to perform the lift using polyurethane injection, with HMI providing technical guidance and support to ensure a controlled and successful outcome under these demanding conditions.