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Category Archives: Newsletters

Horizontal Soil Sampling

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Fig2: The set-screw style sampler is one of several sampling tools Ellingson uses to collect HDD soil samples.

Volume 8, Issue #5 – May 2022 One question we hear frequently: Can you soil sample using HDD? Unlike with…

Changing Direction Mid-Bore

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changing direction easier said than done

Volume 8, Issue #4 – April 2022 The “directional” in horizontal directional drilling (HDD) means the driller can steer the…

How to “Develop” an SVE Well

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bentonite is not the only drilling fluid available

Volume 8, Issue #3 – March 2022 If you’ve ever installed a vertical soil vapor extraction (SVE) well, you enjoyed…

Horizontal Well Geometry 101

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Illustration of HDD rig with key terms relating to bore path geometry

Volume 8, Issue #2 – February 2022 In this month’s newsletter we’re going to cover some basic principles of horizontal…

A Trip Down Military Lane

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Volume 8, Issue #1 – January 2022 Every now and then it’s fun to kick back and think about past…

Aug 2020 – Accounting for Elevation in HDD Well Design and Installation

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AUG2020   Accounting for Elevation During Horizontal Well Design and Installation Since a vertical well or boring is a single…

May 2020 – Horizontal Media Treatment Well

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May2020 Horizontal, Media Treatment Well Horizontal wells have been used to facilitate a wide variety of active remediation methodsover the…

April 2020 – Horizontal Well Surface Completions

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April2020 Horizontal Well Surface Completions One of the common questions we get when working with consultants and owners is “what…

Feb 2020 – Rehabilitation of Horizontal Remediation Wells

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Feb2020 Rehabilitation of Horizontal Remediation Wells Although horizontal directional drilling for environmental remediation has been around since 1987, most of…

Nov 2019 – Sub Slab Horizontal Wells

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Nov2019 Sub Slab Horizontal Wells – Vapor Mitigation and Mass Removal Since the beginning of 2019, Ellingson-DTD has completed seven…