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Home » Authors » George Dugan

Articles by George Dugan

reservoir for El Cuchillo Dam

A Drilling Mud School with a Mission

Training Drillers in Drought-Parched Monterrey, Mexico
George Dugan
May 17, 2023
One Comment

Columnist goes to drought-parched Monterrey, Mexico, to train drillers in fluids, air drilling and foam drilling.


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pH testing

Clearing Up Questions about Soda Ash, Make-Up Water

Are There Alternatives? Can it Make pH too High?
George Dugan
December 21, 2022
No Comments

From the right pH to precipitating out hardness, soda ash is hard to beat for pretreating make-up water.


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synthetic slurry

How Does Fluid-Loss Additive Affect Synthetic Slurry?

Polymers Slurries Have Evolved to Work Better in Cobble
George Dugan
June 15, 2022
No Comments

Early polymer slurries struggled when drilling unconsolidated soils. Fluid-loss additives changed the game.


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In Drilling Fluids, Why Reformulate a Great Product?

Little Changes Add Up to Better Performance for HDD, Other Drillers
George Dugan
January 10, 2022
No Comments

Changes to usability, suspension, dosage often driven by requests from HDD, other contractors in the field.


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The 1-2-3 Approach to Drilling Fluids

Gel Strength, Fluid Loss and Controlling Clay all Play a Role
George Dugan
May 14, 2021
No Comments
Mud techs, operators can ask a few simple questions to optimize their fluids to the drilling project.
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The Case for Synthetic Slurry for Foundation Drilled Shafts

One Advantage: It Allows More Compact, Cleaner Jobsites
George Dugan
January 18, 2021
No Comments

Synthetics allow more compact, less muddy jobsites, as well as easier disposal.


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Understanding Well Rehabilitation Products and When to Use Them

Straight Answers to Drillers' Questions about Rehab
George Dugan
November 16, 2020
No Comments
What's the difference between a mud thinner and mud remover?
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Getting your Spoils to Pass the Paint Filter Test

Disposing of Spoils at a Landfill? Time for a Drying Agent
George Dugan
July 20, 2020
No Comments
How can drilling contractors get rid of free liquids while staying on budget?
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How Do I Use Bentonite-Free Polymer HDD Drilling Fluids?

George Dugan
May 15, 2020
No Comments
Over the last few years, the popularity of pre-packaged, bentonite-free liquid polymer drilling fluid products has grown in the horizontal directional drilling industry.
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What Constitutes a Good HDD Fluid?

George Dugan
August 23, 2019
No Comments
Having the proper training and understanding of drilling fluids to know if a drilling fluid is capable of performing the task at hand can save contractors a lot of grief and money.
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