Weight on bit (WOB) is the amount of downward force exerted by a drill bit during drilling operations. Weight on bit is generally measured in thousands of pounds and is provided by the thick-walled drilled collars. A significant amount of weight on the drill bit is crucial to allow the drill bit to… View Full Term
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By: Tabitha Mishra | Civil Engineer, Technical Content Writer
By: Denise Sullivan | Technical Writer @ Trenchlesspedia
A sanitary sewer is a piping system that carries waterborne waste from residential, commercial or industrial sites to a waste water treatment plant for processing. Sanitary sewers form an extensive network of underground piping in cities and operate under gravity flow or pressure supplied…
Hoop stress is the stress that occurs along the pipe’s circumference when pressure is applied. Hoop stress acts perpendicular to the axial direction. Hoop stresses are tensile and generated to resist the bursting effect that results from the application of pressure. Three principal…
A walkover system consists of a transmitter and receiver that enables operators to locate a horizontal drilling path. The transmitter is located just behind the drill bit and the receiver is a hand-held unit. An operator holds the receiver above the ground above the point where the drill…
Drilling mud, or drilling fluid, is a critical but often overlooked contributor to the overall success of a trenchless construction project. The wrong drilling mud has the potential to cause severe problems like frac-outs or borehole collapse. The right drilling fluid can make a…
By: Tabitha Mishra
Horizontal directional drilling (HDD) is a useful trenchless method of installing new pipelines. It's the go-to method for oil drilling companies due to its ability to go further and, depending on the drill head and other factors, drill through different types of soil. Controlling the…
By: Denise Sullivan
Horizontal directional drilling (HDD) is a conventional method employed by cities and construction workers to install utilities and plumbing underground. Unlike traditional underground installation, HDD does not require open trenches to complete. Equipment Needed for HDD As horizontal…
Tunneling into rock is a relatively complex process, requiring careful project planning and analysis of site conditions. While rock may seem solid, it contains numerous cracks, fissures, faults, folds, and discontinuities, all of which can trigger tunnel collapse. In addition to the…
By: B
Yes, very important! The following is a basic explanation based on using what is known as The Bingham Plastic Model. Plastic Viscosity (PV), Yield Point (YP) and Gel Strengths Plastic Viscosity PV is known as the plastic viscosity of the drilling fluid. A low PV indicates that the mud is…
Microtunneling and guided boring are often erroneously used interchangeably in the construction industry. While both these trenchless boring methods may seem identical, there are a number of key differences between the two that need to be considered when deciding which technology is…
By: Krystal Nanan | Civil Engineer
In the realm of underground infrastructure repair or installation, trenchless technology has revolutionized how professionals approach projects. This innovative method…
By: Chad Decker | Founding Partner, Devco Development and Engineering
Installing utilities like water, electricity, gas, and telecommunications infrastructure often involves disruptive processes that can inconvenience communities, disrupt…
By: Trenchlesspedia Staff
Horizontal Auger Boring offers a streamlined approach to installing underground pipelines, conduits, and cables without the need for extensive excavation. But, like any…
There are two primary methodologies within the realm of underground construction: trenchless and cut-and-cover. Both methods have distinctive characteristics and…
Trenchless methods are efficient and environmentally sustainable options for many projects, but require careful consideration of the equipment used. To select the most…
In the fields of engineering and construction, pipe repair is essential to the upkeep and maintenance of infrastructure. My role as a managing partner at Devco…
Pipe bursting is an advanced trenchless solution designed to replace deteriorating pipes without the need for extensive excavation. By employing different techniques,…
When it comes to trenchless excavation, choosing the right trenchless boring method is crucial to the success of your project. Trenchless boring, also known as…
Horizontal directional drilling (HDD) and auger boring are two common methods of trenchless excavation used in construction projects. Both methods offer unique benefits…
Trenchless technology has revolutionized the construction industry in the past few decades. With the advent of trenchless techniques like pipe jacking and…
The inadvertent return of drilling fluid is common in horizontal directional drilling (HDD) projects, and though not harmful to the environment, inadvertent returns are…
Requirements for horizontal directional drilling (HDD) environmental planning and construction monitoring vary greatly across North America, but regulatory obligations…
Weight on Bit
By: Bertus Vos
Bertus Vos is one of the co-founders and principal engineers at BlueFox Engineering. He holds a bachelor of engineering degree from the University of…
Della is a Civil Engineer with extensive yet progressing experience in a consulting industry. Her experience primarily focuses on underground…
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Krystal is a civil engineer and project manager with an MSc in Construction Engineering and Management. Her experience includes the project…
