The vendor drawing for a compressor or pump skid is the real specification for the pad under it, and the first thing we do on an equipment foundation is lay that drawing next to the structural set and look for differences. Bolt patterns, embedded plates, grout thickness, pad elevation and the allowable differential settlement all come from the equipment supplier, and a pad that is poured to the wrong pattern costs far more to correct than it did to build.
We build equipment pads, machine foundations, generator and chiller slabs, skid supports and pump bases for operators, plant owners and general contractors across Midland and the surrounding oil and gas country. Some are modest slabs with a few reinforcing mats. Others are thick blocks separated from the building floor by a joint, which keeps machine vibration out of the framing.
Below we describe how we scope, price and schedule that work, and where owners tend to find surprises.
Who does what on an equipment foundation
Concrete trade partners form, place and finish the concrete, set embedded plates and sleeves to the template, and handle curing. Surveying the bolt layout, setting the anchor bolts to the equipment template, grouting and any machinery alignment are done by trade partners who specialize in them, and we coordinate that sequence in one calendar. We schedule qualified trade partners for excavation, conduit routing and compaction below the pad ahead of the concrete placement work.
The handoff points are worth documenting. The surveyor confirms layout before concrete, the mechanical contractor confirms template position after the pour has stiffened but before final set, and the grouting partner checks surface prep before equipment arrives. Each handoff is a signature on the pour record, and an owner's rep can see the chain without having to chase it.
Heavy loads, hot work and active facilities
Many pads sit beside live equipment, pipe racks or electrical gear, so our safety plan starts with the owner's site rules. We ask about permits, escorts, lockout practices, restricted access and any limits on trucks and pumps. Crews attend the owner's orientation before they work, and we keep our staging area clear of operating lines.
Wind is a genuine consideration in this region. Midland's record gust is 93 mph, set June 26, 2007, and a 74 mph gust was recorded May 24, 2022. We do not run a pump boom or lift plates in conditions that put a crew at risk, and we protect fresh concrete from blowing debris. If gusts rise during a pour, the foreman decides whether to continue, cover or stop, according to the plan agreed that morning.
What moves the price of a pad
Mass is the first driver, since thicker pads need more concrete, more steel and longer cure time. Second is tolerance: a pad that must hold a flat plane for precision equipment costs more to finish than a general-purpose slab. Third is access, because a pump over a pipe rack or a truck line through a congested plant adds time.
We show these in the proposal as separate lines, with allowances where the vendor drawing is not final. If an owner is deciding between several vendors, we can price the foundation for each, which sometimes tilts the equipment decision. Changes after the pour are the most expensive of all, so we encourage a design review before forms are built.
Operators who rely on pad work
The U.S. Energy Information Administration reports that the Spraberry formation of the Midland Basin spreads across much of the Midland Basin, is about 1,200 to 3,000 feet thick and tops out roughly 2,000 to 7,000 feet below the surface. Production at that scale keeps oil, gas and midstream owners adding compression, separation and pumping equipment, and every new unit needs a pad. Operators generally want predictable schedules and clean documentation more than novelty.
Utilities and industrial owners are the second group. Utilities and energy companies need foundations for transformers, switchgear and generators, where grounding embeds and conduit stubs must be placed with the pour. We coordinate those items with the electrical contractor so the pad is ready for equipment, not for rework.
Planning the pad around the equipment delivery
The delivery date for the equipment often decides the pour date. If a skid arrives before the concrete has reached the strength the vendor requires, the schedule slips on both sides. We ask for the delivery window early and work backward, allowing for cure, grout and alignment. For a pad that must be placed during a plant outage, we plan the pour calendar around the outage hours, not the other way around.
Ground conditions matter too. Caliche can provide a stable base when dry, but it performs poorly when wet, so drainage around a pad needs thought. We coordinate with the earthwork partner on subgrade proof before forms are set, and we check slopes so rain runs away from the foundation. Where a pad shares a containment area, we sequence the two so the seal details are not disturbed.
Equipment foundations we build
The scope includes grade-supported pads, thickened-edge slabs, block foundations, pedestals, pump and motor bases, skid supports, transformer pads and generator slabs. Each has different reinforcement, different embed requirements and different tolerances for flatness. We confirm those items before pricing, and we describe them in the proposal in words the owner can follow.
Finish details also vary. Some pads need a broom finish for drainage, others a steel trowel finish, and some need a keyed edge for grout. Forms for a pedestal or raised base often take more time than the pour itself, so we plan formwork labor accordingly.
Pads that serve buildings and plants
Pads support many building types. A manufacturing plant may need foundations for presses and compressors inside the shell, while a hangar needs ground power and compressor pads outside it. Medical and office buildings have chillers, generators and cooling towers that sit on pads at grade or on the roof structure.
The airfield history of Midland is relevant here. Midland Army Air Field operated from 1942 to 1946 as a bombardier training school, and the field's facilities became the basis of the city's airport. Today the same area includes aviation support work that has its own equipment foundations, from fuel systems to ground support equipment, and we adapt our approach to each owner's requirements.
Send the vendor drawings
Give us the equipment foundation drawings, delivery window and site rules. We will return a pour plan, a cure and grout schedule and a price with each assumption listed.
Common Questions
Should the pad be isolated from the building slab?
When the equipment generates vibration or heavy dynamic loads, usually yes. The structural engineer or equipment vendor specifies an isolation joint or a separate foundation. We build to that detail and make sure the joint material stays clean until the pour.
Who is responsible for the bolt layout?
The equipment vendor supplies the template, and a surveyor or mechanical contractor confirms its position. We set the embedded items in the forms and verify them before and during the pour. A second check follows after the concrete stiffens.
How long must the pad cure before equipment is set?
That depends on the vendor's requirements and the specified mix. We take cylinders, share the break results and tell the mechanical contractor when the pad reaches the required strength.
Can you pour during a plant outage?
Yes. We plan crews, trucks and curing around the outage hours, and we review the owner's safety requirements in advance so work starts on time.
What drawings should I send for a quote?
Send the vendor foundation drawings, the structural plan, the soils report and any site restrictions. Missing items become allowances in our proposal, and we flag them.