Author Archives: Jacob Gallagher
History of Horizontal Wells
Volume 8, Issue # 10 – October 2022 Directional drilling began with surveying of oil and gas wells in the…
Sideways Sparging
Volume 8, Issue # 10 – October 2022 We frequently point out that pretty much any kind of vertical remediation…
The Longest Well
Volume 8, Issue # 9 – September 2022 When discussing horizontal wells with someone unfamiliar with the technology, we frequently…
Waste Handling 101
Volume 8, Issue # 8 – August 2022 Of all the questions we encounter regularly, some of the trickiest relate…
Vibrating Wire Piezometers Installed with HDD
Ellingson recently completed the installation of four vibrating wire piezometers (VWPs) beneath a shallow channel inlet of San Francisco Bay….
HDD Geometry 201
Volume 8, Issue # 7 – July 2022 In a previous edition of Inflection Points, we discussed the concept of “setback”…
Sub Slab Depressurization Wells: Shallow Can Be Tricky
Ellingson-DTD recently completed the installation of three sub slab depressurization wells for the purpose of vapor mitigation at a medical…
Extracting Water from Horizontal Wells
Volume 8, Issue #6 – June 2022 There isn’t a more pure or fundamental application for a well than extraction….
Coal Ash Project Enters Another Phase
Ellingson crews are currently completing the installation of three horizontal capture wells at a coal fire power plant in the…
Utility Strike (Unmarked) Ruins Everyone’s Day
A utility strike represents one of the most common ways a horizontal directional drilling (HDD) project can quickly turn south. …