Field Operations

Crane and Lifting Operations on Wellsites: Rig-Up to Final Pick

Most crane work on a wellsite follows the same arc. It starts with a plan on paper, moves through a rigging check, and ends with a signed record of the pick. Between those two points, every person within reach of the load has a defined job. Here is the crane workflow from load chart to final pick.

The lift plan

Every lift starts before the crane is positioned. The lift plan fixes the numbers that decide whether a pick is safe: the weight of the load, the radius from the crane's center of rotation to the load's center of gravity, the load chart rating for that configuration, and the rigging needed to attach the load.

The plan also fixes the ground. The crane must sit on level, compacted surface, with outriggers extended and set on pads where the ground is soft. The area around the lift becomes an exclusion zone. Only the crew assigned to the pick works inside it.

Plans change on wellsites. When the load grows, the radius extends, or the crane moves to new ground, the plan changes with it. A lift plan that is not updated is a plan that does not apply. Crane work is a constant on workover jobs, where heavy equipment is set, pulled, and moved between wells. See the planning guide for workover rig operations alongside this one.

The roles

A crane lift is a small crew with clear lines. The crane operator runs the machine. The rigger hooks the load and checks the rigging. The signal person is the operator's eyes, passing directions by hand signal or radio. The lift supervisor owns the plan and has the authority to stop the job.

On bigger picks, more people join: a second rigger on the load, a spotter on the far side, and someone assigned to keep the exclusion zone clear. Every role should be named before the crane swings. If the job needs a hand on a tag line, name that person before the pick, not after the load is in the air.

Operator qualification and certification

Crane operators on construction-type work are covered by OSHA 29 CFR 1926 Subpart CC, the federal rule for cranes and derricks in construction. Under that rule, an operator must be qualified or certified for the crane type and capacity they run, and the employer keeps the documentation on file.

Qualification is not a one-time event. It covers the crane class, the load charts, and the conditions on the ground. The crew should produce the operator's credentials as easily as the crane's inspection records. If the paperwork is missing, the lift is missing its foundation.

Rigging inspection

Rigging carries the load's full weight, so it gets checked before every lift, not just on Mondays. Slings, shackles, hooks, turnbuckles, and spreader bars all get a visual inspection for damage: cuts, abrasions, corrosion, deformation, cracked welds, and worn or missing pins.

A damaged sling is easy to miss in a hurry. The rule on a wellsite is simple. If it is damaged, take it out of service. A marked bin for damaged rigging keeps bad gear from drifting back into rotation. Rigging that fails in service usually failed the inspection first.

The pick

The pick itself runs on communication. The signal person gives the operator hand signals or radio directions, and the operator repeats back what they understand before moving the load. A standard signal set agreed on before the lift beats improvised gestures every time.

Tag lines keep the load under control as it swings. No one stands under the load, and no one rides the load. The load path is planned so the hook moves over clear ground, not over the pipe rack, the tanks, or the crew.

Lifts near live equipment

A wellsite is crowded with energized things. Overhead power lines are the obvious hazard, and crane contact with power lines is one of the most serious incidents in the work. The lift plan must account for the clearance between the boom, the load, and any line that could carry current.

Live equipment also means process lines, pressurized vessels, and rotating machinery. A load swinging over pipe in service is a load in the line of fire. The plan should route the pick away from live equipment, or shut down and isolate what cannot be avoided. The same thinking applies to the crew on the ground: clear the path before the load moves. Where crew members work at height near the crane and the rig, the rules in the fall protection guide for drilling and service rigs apply on top of the lift plan.

The pre-lift checklist and the post-lift record

Before the hook leaves the ground, someone walks the checklist: load weight confirmed, radius measured, load chart consulted, rigging inspected, signals agreed, exclusion zone clear, ground conditions checked. The checklist is signed by the lift supervisor and the operator, and it becomes part of the job record.

After the pick, the record continues. What was lifted, how much it weighed, what rigging was used, how long the lift took, and any issues that came up. A signed checklist after the job is the difference between a controlled lift and a story told later. The same record protects the company if an incident is ever investigated.

Crane time tickets and rental paperwork

Most wellsite crane work is rented by the hour. The crane ticket records the hours: mobilization, rig-up, standby, the lifts themselves, and demobilization. The ticket is signed by whoever accepted the crane, usually the company man or the operations lead, and it drives the invoice.

The rental paperwork should match the lift record. Load charts, inspection reports, operator credentials, and the signed lift checklists belong with the ticket in the job file. The crane ticket matters twice: it carries the lift hours and the checklist, so billing and safety share one record. Field service software such as OpsFlo tracks tickets, dispatch, approvals, timesheets, and documents for oilfield service companies, keeping the two sides of that record in one place.

Rig moves put the heaviest concentration of crane work on a wellsite, and sequencing the lifts is half the job. See the rig move planning and logistics checklist for how the picks line up.

Sources and further reading

• OSHA 29 CFR 1926.1400: Cranes and derricks in construction
• API RP 54: Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations