What Is Water Jetting? A Powerful Solution for Well Rehabilitation in Arizona

What Is Water Jetting - Western Drilling

What Is Water Jetting and Why Does It Matter?

Historically, well rehabilitation involved using cable tool rigs, brushes and swabs. While effective at cleaning the inside of a casing, these methods often missed the critical outer areas, especially the annular space and gravel pack. Arizona’s high calcium and salt content makes these outer regions prone to buildup, which can clog perforations and reduce well efficiency.

Water jetting uses high-pressure water (up to 15,000 PSI), hydrochloric acid, and corrosion inhibitors to remove these mineral deposits. This comprehensive method restores water flow and increases specific capacity.

What Is Water Jetting - Western Drilling

How the Water Jetting Process Works

Western Drilling has developed a proprietary tool to ensure the most effective cleaning possible. Here’s how the process works:

  • Pull all existing equipment
  • Pre-video inspection and chemical planning
  • High-pressure jetting (5,000–15,000 PSI)
  • Bail out debris loosened by jetting
  • Post-video inspection
  • Reinstall equipment
  • Pump to waste until water is clear

The Before and After: Real Results in Buckeye, AZ

One of Western Drilling’s recent jobs was a 600-ft deep well in Buckeye, AZ that was approximately 20 years old. The before-and-after results are striking—perforations that were previously invisible due to blockage are now completely open, revealing the cleaned gravel pack behind them:

What Is Water Jetting - Western Drilling

As you can also see below, before water jetting, the perforations are clogged and the gravel pack is invisible. After water jetting, the perforations are clear and the gravel pack is visible once more:

What Is Water Jetting - Western Drilling

Why Choose Water Jetting?

Here are some commonly asked questions that explain why water jetting is the superior method:

How long does it take? 

Water jetting typically takes 8–10 hours depending on well depth, diameter and perforations

How often should it be done? 

Typically every 2 years

Why is it better than brush and bail? 

Water jetting penetrates perforations and stimulates the gravel pack

What casing sizes can be serviced? 

Six inches is the smallest. Casing can be water jetted up to 36 inches

What’s the result? 

Water jetting increases specific capacity

What Is Water Jetting - Western Drilling

See the Difference for Yourself With Western Drilling

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