Pipe Tapping – The Secret behind Maintenance Work Carried Out On Live Pipelines

Imagine the mess a leaking sewage pipeline will create if it is left unattended for weeks at end! In thickly packed urban areas in the UK where sewage lines from every single household converges into one large sewage pipeline, maintenance workers cannot risk such disasters to happen. Preemptive measures are taken in order to mitigate disaster situations. You might have seen maintenance workers going working on pipelines and wondered what actually went on behind the scenes. Well, here is a glimpse into what happens when maintenance workers carry out what they call Pipeline Tapping.

Putting a cork on the pressure

Actually, the very first thing that happens in pipeline tapping is cutting a hole through the hard shell of the pipeline. This allows for tools to be inserted through the hole that helps in controlling the pressure within. What this does it makes it quite possible to manipulate the pressure acting along the pipeline, letting workers plan out their work better without causing any disruptions.

One continuous process

Everything in pipeline tapping is one single process that begins with the pilot bit cutting through the pipe shell and ends with the removal of the coupon (section of the pipe that is cut and removed). When the cutter has done its job, subsequent phases of the process is carried out. Adding new pipelines or removing a redundant section can be easily done with pipe tapping. So effective are the methods of Pipeline Isolation that it can be safely and effectively used for pipes that are on the surface as well as those that are under water.

Pipe freezing – the magic of liquid nitrogen

Freezing pipe or pipe freezing is a much-used pipeline service technique, wherein the content of the pipeline system is freezed with the help of liquid nitrogen. This leads to the formation of the ice plugs, which then allow the maintenance work, without incurring the costs and down time of a complete system drain out.

The procedure is non-intrusive in nature, and involves isolating a short section of the affected pipeline. However, the procedure can be performed by only skilled men. Here are the major advantages of freezing pipe procedure:

• No need for drainage, venting or refilling
• Pipe freezing can be applied on all the popular pipe materials and pipes containing a wide range of liquids
• Environmentally friendly solution
• Safe and cost effective

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Under the procedure, the skilled men cover the pipeline with a jacket, and then liquid nitrogen is introduced into the jacket so as to freeze the content of the pipeline. Liquid nitrogen has a temperature of - 196°C, which quite effectively solidifies the content, and let the workmen complete their work.

As of now, there are many companies that provide freezing pipe and other pipeline maintenance services at affordable charges. With Google search, you can find out a lot about these companies, and land on their websites to get to know more about their offerings, and which one would make more sense to your specific business requirements. 
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Make pipeline repairs easy with line stopping services

Do you work in the maintenance department of an oil exploration company? If yes, there are chances that you might come across different complex situations where find no ways other than pausing the entire line flow. In such situations, Line stopping services are of great help as they allow engineers to carry out maintenance or other tasks without the need to disrupt the existing flow in the pipe. In technical language, it is a mechanical method of creating a temporary isolation in a live main, where some flow exists and thus cannot be frozen, or a complete shutdown is not an option.

There are several advantages associated with line stopping and it ensures easy work on a live pipeline without creating the chances of a total shutdown or major disruption to services. Another advantage with this process is that this process can be carried out on a range of materials such as Steel, Cast Iron, Ductile Iron, Copper, Stainless Steel, Plastics and Cement Asbestos.

The most typical way to add any section onto a live pipe is to cut and weld a new joint. But with this revolutionary service, there won’t be any issue of total shutdown which could make a serious impact to your business.

Line Stopping – A great way to avoid the complete shutdown

Have you ever worked on a live pipeline active under high pressure? If yes, you can easily determine the working conditions under such situations. Workings on live pipelines possess heavy danger to the lives of people and it is important to take necessary precaution at the maximum. However, with the advancements in technologies have resulted in greater security and safety and one such technique is line stopping which can be defined as a mechanical way of creating a temporary isolation in a live pipe. This is done of pipelines where some flow exists and there is no possibility of complete freezing, or a total shutdown is out of scope.

The best thing about this process is that an engineer can perform various kind of work on the pipeline while not disturbing its flow which also avoids the chances of complete shutdown. It can be done on most common pipeline materials such as Steel, Cast Iron, Ductile Iron, Copper, Stainless steels, Plastics and Cement Asbestos.

A customized fitting is either welded or bolted to the live pipeline using valves. Under pressure drilling is done whenever required to install the line stopping equipment. In case a bypass is required, it is installed during the initial set up which ensures uninterrupted flow in the main line.

Hot Tapping Pipelines – An Integral part of industry

Particularly in chemicals and gas industry, pipelines play a very great role in maintaining the efficiency of operations. Therefore, it becomes important for plant workers to ensure their working conditions remain normal throughout the operations. Any kind of mechanical failure can result into several losses. Any kind of maintenance work on pipelines sometimes hampers the work in great way by putting the lines idle. So, here comes the need for hot tapping pipelines that allow engineers to carry out various kinds of maintenance or repair work without the need for total shutdown of operations.

This technique is of great value as it doesn’t cause any kind of hindrance to existing work. In fact, it makes way for continuous operations as pressure is thoroughly contained. Engineers can carry out the job in any particular section of the active pipe without shutting down other sections. This process is limited only by the amount of pressure that has to be restricted.

The high level of flexibility makes it the most sought after process among companies as a way of working on pipelines. This process can be done both manually and automatically, and can be performed on both surface pipelines and sub area pipelines. Hot tapping is typically performed on materials such as carbon steel, stainless steel, cement lined pipe, fiberglass, or plastic pipes.

What pipe freezing is all about?

There are hundreds of industrial applications where pipelines play a crucial in keeping the processes running and active. Any downtime in the pipeline flow may result in huge monetary loss. For example, there is always a scope for maintenance work for which a specific time slot is allocated. The most typical way to carry out any kind of work on a live pipe is to stop the flow and then do the required work in that time period. But today’s competitive industrial environment demands for always up time and zero breakdown. But still accidents never come announced. So here comes the need of a technology that allows engineers to do their regular job on a live pipeline without hindering the running flow in the pipe.

One such process is Pipe Freezing which is defined as an intrusive, controlled method of separating a section of pipe, by solidifying the pipe contents to form a secure ice plug which in turn holds the liquid flow whilst a maintenance work is carried out. The best thing about pipe freezing process is that even a big job can be carried out without causing much disturbance to regular activities at the premises.

During the process, a jacket is fitted around the pipe section to be freeze. There after liquid nitrogen is introduced into the jacket to freeze the contents of the pipe. This process is found to be very effective in industries where shutting down the line even for few minutes can result in severe losses.

Hot Tapping – Playing a vital in oil exploration industry

In today’s digital environment, technology plays a vital role and makes our lives easy. Recently I came to know about hot tapping technology which is used to manage high pressure lines. With the use of this technology, engineers can easily carry out maintenance work on high-pressure liquid or gas pipes without interrupting the flow. Today, this technology is playing a great role by saving lives of hundreds of people working in the industry by allowing easy management of these lines. 

One of my friends works at an oil rig and he told me about each and every aspect of hot tapping and hot tap connection. It is basically a process in which a live pipe connection is cut without having to turn off of material through it. As we know working on high-pressure lines pose greater risks to worker’s lives, this method has proven to be safe and trustworthy. In addition, there won’t be any kind of interruption to the material passing through; it doesn’t hamper the ongoing work. 

Operations like deep water oil and gas exploration are perfect for hot tapping procedures considering the complexity of the work involved. It is not only useful in repairing lines, but also helpful in blow-outs and other malfunctions. There are numerous cases in the past where this technology played a great role in managing the things greatly.