Denise Sullivan
Denise Sullivan is an accomplished freelance writer from Louisiana, with a Associate's Degree in Journalism from Eastern Oklahoma State College. She also graduated from East Central University with a Bachelor's in Biology. Denise began her writing career writing operations and maintenance manuals and software utility manuals for flight simulators. Since, she has expanded her writing to a broad spectrum of topics.
Articles by Denise Sullivan
Pipe Inspection: Where It Goes Wrong (and How It SHOULD Be Done)
Being in a hurry is the leading cause of pipe inspection issues. With more advanced equipment, those issues can be eliminated before they...
The Top 4 Drilling Fluid Mistakes You Need to Avoid
Drilling fluid keeps the system cool and helps maintain the borehole. These top drilling fluid mistakes can lead to costly damage and...
Top 5 Reasons to Attend a No-Dig Show
A No-Dig Show is a place to learn from industry leaders, see new technology, and meet new contacts.
Understanding the Importance of Wellbore Stability
A stable wellbore is essential to the oil and gas industry. To adequately calculate the wellbore stability, planners must take into account...
The Equipment Behind Wastewater Management in Trenchless Technology
Trenchless technology equipment plays an essential role in the maintenance of wastewater management systems. Understanding the different...
The Hydraulic Fracturing Technique: Things You Should Know
Hydraulic fracturing technique uses hydraulic fluid with additives. This fluid affects the fracture orientation and length, which workers...
Carrying Out In-Situ Stress Measurements: Hydraulic Fracturing Vs. Overcoring Methods
Carrying out in-situ stress measurements can be accomplished by using either hydraulic fracturing or overcoring methods. Both offer a...
The Importance of Continuing Education for Trenchless Professionals
Continuing education is a necessary part of keeping abreast of all the new technologies and procedures affecting the trenchless industry....
Half Bench Vs. Full Bench: Key Differences Between Common Manhole Benching Methods
While benching is an integral part of the manhole flooring process, half bench and full bench methods have subtle key differences you...
Understanding Drilling Fluids Solids Control with Horizontal Directional Drilling Rigs
Horizontal directional drilling fluid poses environmental problems if not disposed of properly. However, through the use of solids control...
Understanding Construction Emissions: What’s Causing Greenhouse Gases & How We Can Improve
Greenhouse gas emissions are a real concern for those in the construction industry. Understanding the cause can help planners choose the...
3 Essential Tips for Pressure Testing Your Ground Heat Exchanger System
A successful ground heat exchanger pressure test uses water not air to pressurize the line.
The 5 Best Pipe Joining Methods You Can Always Depend On
Each plumbing job requires the joining of lines at some point. Choosing the best pipe joining method depends not only on the fluid...
Inflow and Infiltration Effects on Sewage Systems
Failing to maintain the sewage system pipeline can cause inflow and infiltration into the system. With an increased amount of water in the...
A Brief History of Manholes and Why We Need Them
Manholes date back to the mid-19th century and still play an essential part in maintaining city sewage systems. They serve not only as...
Hydraulic Radius Explained: Sewer Design, Formulas and Perimeter Calculations
The hydraulic radius helps to determine how much water and sediment can flow through a channel. The higher the radius of a pipe, the larger...
3 Reasons Slot Trenching Is the Preferred Excavation Method
Slot trenching is a more environmentally and worker-friendly way to lay new subterranean utility lines.
Understanding the Differences Between Pneumatic and Static/Hydraulic Pipe Bursting
Pneumatic and hydraulic pipe bursting are both effective methods of trenchless pipe replacement, each with their own pros and cons. See...
4 Essential Considerations for Designing a Borehole
An essential part of any drilling project is the planning stage. Project engineers must spend time designing boreholes to ensure project...
How to Tell If Your Home Has Lead Pipes and How to Replace Them
Prior to the late 1970s, lead was common in water transportation pipes. While newer construction no longer employs this material, older...
Thrust Boring for High-Risk Boring Projects
Thrust boring works by cutting a pilot hole while thrusting a pipe sleeve in place. The sleeve acts as a stabilizer, making it an ideal...
Why Reamers Are Important to Trenchless Boring, Plus Available Types of Reamers
Many trenchless drilling projects utilize reamers to help enlarge the pilot borehole. With proper reamer and fluid use, this method can...
Understanding How Ground Penetrating Radar Works
Ground penetrating radar is a handy tool to help keep workers from damaging underground utility lines. Advancements in technology offer a...
5 Reasons Why Fracture Mechanics is a Must for Every Drill Station
The mechanics of determining crack propagation is known as fracture mechanics. Using these skills at a drilling station can help mitigate...
A Closer Look Into the Positive and Negative Effects on Trenchless Technology Industry Professionals From Steady HDD Market Growth
The horizontal directional drilling industry (HDD) has seen steady growth over the last few years. Understanding the sectors which use HDD...
An Overview of the Utility Tunneling Method in Trenchless Construction
Not all trenchless techniques prohibit workers from entering the excavation site. Utility tunneling is one of those trenchless methods that...
What Is Trenchless Technology?
Trenchless technology is all about fixing and constructing underground structures without the use of surface level trenches. Learn how this...
The Essentials to Drilling and Boring Wells
Drilling a well requires planning. You need to know where the well goes and if it will be enough to provide for your needs. Once location...
An Overview of Hydrovac Excavation
Imagine having the ability to remove soil above underground utility lines without damaging the underground lines through the use of...
The Difference Between Gunite and Shotcrete Explained
Shotcrete is a mix of cement and sand blown through an airstream. He designed a technique where he could spray the plaster into the...
Assessing the Value of Life in a Trenchless Project
Assessing value of life is part of any risk management plan for trenchless projects. Determining if a project has too high a probability...
Your Guide to Bypassing Sewers for Mechanical Spot Repair
Mechanical spot repairs do not often require a bypass to complete. However, on occasion, a sewer bypass may be necessary, and planning is...
Testing Materials for Strength and Parameters
Standards for materials used in trenchless technology are set by ASTM International, a group devoted to ensuring various technical elements...
A Step-by-Step Guide to HDD
Horizontal directional drilling is a popular method of laying cables, utility lines and plumbing. Careful planning and constant care during...
The Lifespan and Dangers of Old Piping Materials Vs. Plastics and Liners
Cast iron and galvanized steel are prone to corrosion and channeling, lead and asbestos have serious health hazards. While PVC, HDPE and...
Why Trenchless Technology is a Perfect Fit for Fiber Optic Cable Installation
Fiber optic cable installation benefits from the use of trenchless technology. Direct burial and horizontal directional drilling techniques...
Cleaning and Repairing Tuberculation in Pipes
Tuberculation in pipes occurs in cast iron plumbing resulting in a brown slime buildup on the interior of the line. Repairing the damage...
The Process of Borehole Expansion
Borehole expansion may prove necessary overtime. Newer technologies, allow workers to expand the existing casings and avoid traditional...
How to Tell if Your Home Has Asbestos Cement Pipes
Popular in the 1930s and 40s, asbestos cement pipes were used for water and sewage lines. Degradation of those lines allowed asbestos to...
The Basics of Trenchless Microtunneling Projects
Microtunneling is a trenchless construction technique that allows an operator to bore small diameter holes over great distances. The new...
Line Belly Vs. Channeling: When Trenchless Can't be Used for Repair
When a blockage occurs, is it a line belly or channeling? Line belly cannot be repaired using trenchless methods, but channeling can....
Using Trenchless Technology to Fix Channeling Pipelines
When the bottom of a pipe erodes in a process known as channeling, it becomes problematic for a homeowner. However, the use of trenchless...
Trenchless and the Environment: How No-Dig Construction Saves Ecosystems
No-dig construction's environmental impact is staggering. The reduction of a carbon footprint, lessening the detrimental effects on...
Is a CIPP Liner The Right Fit for Your Trenchless Rehabilitation Project?
CIPP is a popular method of trenchless rehabilitation because there's minimal disruption of your yard, plus it often takes less time to...
What is a No Dig Show?
Education is an important point for trenchless technology companies, as the industry is still relatively new and growing. A no dig show...
Signs Your Borehole Is Losing Integrity
Borehole integrity is vital to the safety and success of a drilling project. There are several issues that can lead to borehole collapse...
How To Bid On That Trenchless City Project
Bidding on a city project will require you to provide information on your budget, timeline and your contingency plan. You'll have to give...
Who Invented Trenchless Technology?
Trenchless technology, the method of subsurface construction requiring little or no continuous trenching, began in 1970. It was invented by...
How to Avoid Tunnel Collapse When Boring Big
Analyzing the ground conditions is only a small part of successfully boring a tunnel. Using engineering skills as well as preparing the...
Proper Maintenance for Drill Rig Equipment
Each of the components of a drill rig must be considered individually in order to maintain it. Rigs, rods, bits and back reamers, fluid...
An Overview of Sliplining
Sliplining is when workers insert a pipe within a damaged pipeline. The new plumbing is made of either polyvinyl chloride (PVC) or...
What to Do When You Smell Gas?
What to Do When You Smell Gas? Ventilate the area, evacuate the premises, contact emergency services and turn to trenchless inspection and...
How to Tell if a Gas Line Needs Repair
A faulty gas line is nothing to mess with. When gas appliances are not putting off the same amount of heat or flame as they once did, it...
Is Trenchless Rehabilitation Right for Your Home?
In the event of pipe damage, owners try to find the quickest, cheapest method of repairing. Trenchless rehabilitation can be a viable...
How Pigging Works in Trenchless Repair and Rehabilitation
There are 5 basic PIG models, utility, inspection, intelligent, gel and specialty PIGS in use in trenchless pigging, all of which are used...
Why Replace Conventional Trenching with Trenchless Technology?
Trenchless rehabilitation is cheaper, less disruptive and requires less time to complete as opposed to conventional trenching projects,...
Using Trenchless Maintenance to Avoid Costly Leak Repairs
Trenchless technology methods are fast and efficient ways to address line damage. New technologies arise every day that make it easier to...
Choosing Drill Rods for Trenchless Tunneling
For trenchless projects, managers select one of three main drill rod categories, A-series, D-series, or O-series. A-series rods are made of...
Rehabilitating City Water Lines Using Trenchless Technology
Rehabilitating city waterlines via cured-in-place pipe, sliplining, pipe bursting and other trenchless methods fixes tuberculation,...
The Complex World of Sewer Networks
There are three main types of sewer systems: separate, combined and partially separate systems. Separate sewer systems use two lines, one...
Common Causes for CIPP
Cured-in-place-pipe, also known as CIPP, is a trenchless method used to fix plumbing problems. CIPP works by inserting a resin-impregnated...
Cased Boring Vs. Uncased Boring
Uncased boring is similar to the cased method. However, instead of having a casing pushed into the hold made by the auger, there is nothing...
Ground Improvement Requirements When Working With Sandy Soil
Things to consider are how to deal with flooding issues, regulations concerning excavation and backfill of the site, and potential soil...
Trenchless Installation of Utility Lines and Access Ports in Urban Areas
The use of CIPP most commonly occurs to repair water, sewer, and gas lines. When installing utility lines in communities, an array of...
The History of Vitrified Clay Pipe in Trenchless Installation
Vitrified clay pipe (VCP) has been in use since ancient Babylon. The material is abrasion-resistant and acidic erosion and...
A Look at Pipe Penetrating Radar
The use of pipe penetrating radar (PPR) helps to determine which areas of pipeline need attention most by way of CIPP, sliplining or pipe...
A Look at CIPP and Aging Drinking Water Infrastructure
Cured-in-place pipe, better known as CIPP, is essentially a pipe within a pipe that costs between $60 and $200 per-foot for water...
Asbestos Cement Pipe: Why It's a Problem and How Trenchless Can Fix It
Digging up and replacing asbestos-infused pipes is costly and hazardous. Pipe bursting allows replacement of the pipes without exposing...
Trenchless Sewer Repair and Cleaning 101
Sewer lines become clogged and damaged from tree root infiltration, the pouring of oil down drains and neglect which leads to tuberculation...
A Look at Structural Manhole Rehabilitation
Since manholes are designed to last 50 years, they are slowly deteriorating. Manholes can be repaired using trenchless technology and CIPP,...
An Overview of Robotic Pipe Repair
Robotic pipe repair is an essential part of oil companies’ pipeline maintenance. The technology, known as smart or intelligent pigs,...
Why a Detailed Geotechnical Report Means Success for Your Trenchless Project
A comprehensive geotechnical report is an all-important first step in the planning process to ensure that your trenchless project runs...
A Complete Guide to the Usage and History of Drill Bits and Tooling
The drill bit and its tooling practices have evolved to become a mainstay of modern drilling processes. Without these all-important tools,...
Why CIPP Is Growing Rapidly for Drinking Water Mains
CIPP is growing rapidly for water mains, it provides a seamless fix for cracked pipes and provides consumer protection from asbestos and...
An Introduction to Pipe Bursting
Learn how pipe bursting works, why it’s the best way to efficiently replace damaged or leaking pipes, and why it’s the cost effective...
4 Common Reasons for Trenchless Rehabilitation In Your Neighborhood
Sewer rehabilitation, water line replacements, fiber optic installation and gas line repair are among the common reasons for trenchless...
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