Dependable Well Service — Midland, TX

Hot Oiling

Paraffin kills production. We kill paraffin.

Paraffin kills production. We kill paraffin. Our hot oiling services cover downhole tubing and rod treatment, flowline clearing, and surface equipment flushing — keeping your wells producing at full capacity. Whether you're on a scheduled treatment program or need an emergency response to a plugged well, our hot oil crews are ready to mobilize fast.

Dependable Well Service hot oiler Unit #110 — red and white DWS hot oil truck on a Permian Basin location

What's Included

Hot Oiling, done right.

Downhole tubing & rod treatment

Heated circulation that melts wax off tubing and rods to restore flow.

Flowline clearing

Hot-oil circulation through gathering lines and surface piping to clear restrictions.

Surface equipment flushing

Vessels, tank batteries, and surface iron flushed and kept workable.

Scheduled treatment programs

Recurring hot-oil runs that keep paraffin from ever choking production.

Emergency plugged-well response

24/7 mobilization when a well plugs off or a line freezes.

Field School

Why wells choke — and how hot oil fixes it

You don’t have to take our word for it — here’s the actual science of what’s happening in your tubing, and exactly what a hot oil treatment does about it. An informed operator makes better calls, and we’d rather teach you than sell you.

01

Paraffin: the production killer

Crude oil leaves the formation warm, carrying paraffin wax dissolved in solution. As it climbs the tubing, temperature and pressure drop — and the wax precipitates out, plating onto tubing walls, rods, and flowlines in white-to-yellow layers. Every layer shrinks the flow path, raises pumping loads, and cuts production. Left alone, it chokes the well off entirely.

02

It’s rarely just wax

Deposits are almost never one thing. ASTM lists over 120 materials found in water-formed oilfield deposits — mineral scales like calcium carbonate and calcium sulfate, iron sulfide from bacteria-soured systems, formation solids, and corrosion byproducts. Paraffin acts like a binder that helps these other deposits accumulate, which is why buildup accelerates once it starts.

03

What heat actually does

Paraffin is temperature-driven: it fell out of solution because the oil cooled, so restoring heat reverses the process. A hot oil unit circulates heated oil through the wellbore or flowline, re-melting the wax back into solution and carrying it out with the flow — restoring the full pipe diameter without cutting, milling, or pulling tubing.

04

Why on a schedule

Wax deposition never stops — it restarts the moment treated oil cools back down. That’s why the operators with the best lifting costs don’t wait for a plugged well; they run scheduled treatments that keep buildup from ever reaching the point where production suffers. Catching it early is dramatically cheaper than a workover.

How a treatment actually runs

1

Diagnose

We talk through the symptoms — rising tubing pressure, falling production, heavy rod loads — and confirm paraffin is the culprit before burning a treatment.

2

Rig up safe

The unit ties into your wellhead or flowline connection, pressure-tested before any heat goes downhole. Hazmat-certified operator, every job.

3

Heat & circulate

Oil is heated and circulated down the casing or tubing (or through the flowline), melting wax off the steel and carrying it back into the production stream.

4

Verify & document

We watch pressures and returns until the well flows clean, then leave you an accurate ticket — what was treated, what moved, and what we recommend next.

Straight Answers

Hot Oiling questions, answered

How fast can a hot oiler be on my location?

Dispatch answers 24/7 and we roll out of Midland, so most Permian Basin locations see a truck the same day — and plugged-well emergencies get priority mobilization, day or night.

How often should a well be hot oiled?

It depends on how fast paraffin builds in your wells — many operators run a scheduled program every 2–6 weeks. We will help you dial in a treatment interval that keeps production up without over-treating.

What does hot oiling cost?

Pricing depends on treatment type, depth, and location. Call dispatch at 432-425-6000 with the well details and we will quote it straight — no runaround, no surprise charges on the ticket.

Need hot oiling on your location? One call to dispatch and a maintained unit rolls — across the Permian, day or night.

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