Thrust Force Requirements During Direct Steerable Pipeline Thrusting (DSPT)
The focus of this article is to review the pipe thrusting requirements for small overcut (or annulus) applications. Since the overcut is generally smaller than that of horizontal directional drilling (HDD) there is a concern of friction dominating the total thrust force required for installation or retraction.
View ArticleNever Settle - Importance of Settlement Analysis and Monitoring in Trenchless Design & Construction
A major concern among third party owners when trenchless
projects are constructed near their infrastructure is settlement.
Settlement of the surface can have detrimental effects on
roads, railways, buildings, pipelines or other facilities. In the past
trenchless installation methods have been the preferred method
of these third party owners to cross beneath their infrastructure
because of the less intrusive nature of the construction.
View ArticleGoing The Distance
Installing a pipeline crossing beneath a sensitive resource
over a length exceeding 15,000 feet may seem like a
dismaying endeavor for the majority of companies. Even in
ideal conditions, drilling over 15,000 feet of any diameter hole
would be a formidable challenge for even the most experienced
HDD driller.
View ArticleA New Perspective in Hydrofracture Analysis
Horizontal Directional Drilling (HDD) projects in North America continuously monitor drilling fluid annular pressure during construction. Downhole tooling automatically records "real-time", or "as-built" pressure data. This article gives an insight into recent findings which show how the measured data compares to the industry standard calculated values.
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