Water Well Drilling Support – Well Drillers – Welding Stainless Steel Casing

JW Portable Welding & Repairs supports well drillers in need of well casing welding. Disregarding the casing material, casing size, beveling type, you can rest assured that we can handle the job perfectly. In fact, we have accomplished a number of projects for well drillers in Ontario ranging from 6-inch mild steel well casing to 12-inch stainless steel well casing. References are available at your request.

 

As seen in the photo gallery above, we welded 12-inch stainless steel well casing on a number of water wells in Ridgetown area. The wells ranged from about 160 ft deep to about 220 ft deep. The welders’ goal was to seal, how well drillers say, the joints between the 20ft sections of 12-inch stainless steel well casing.

 

The welding work was performed on a number of wells in winter, autumn, spring and summer with each season creating “special” natural conditions and sometimes restricting the welding and drilling operations. As you know, the rain can severely disrupt the welding process and can even create a hazardous environment for a welder but are you aware that the wet boots allow the flow of the current if they are covered in mad even if there is no rain?

 

The welding job starts with welding the cup then we move to weld the screen and then we weld the sections of the well casing. The well drillers are professional tradesmen with the extensive schooling and years of experience and they are willing to help the welder to get into the best position possible. I would like to express officially my gratitude towards the whole crew at this moment.  The water drilling is not an easy task and many unexpected things can happen during the drilling process, therefore welders have to be flexible enough to accommodate their schedule to the well drillers schedule.

 

Let’s go back to the welding process. The welder’s goal, as the well driller says, is to seal the joints of a well casing section. The direct translation to a welder’s language is TSSA weld without the root, so a relaxed style TSSA. In case of stainless steel casing, the things can get complicated and it can happen very fast. As we know, the first pass on the double bevel, so on the V joint, supposed to seal the joint first. The first pass supposed to be inspected by the welder after the slug is removed, to make sure the sealing effect has been achieved.

 

Unfortunately, we are dealing with stainless steel rods and they do not have anything similar to 6010 or 6011, the joint does not have root, and we do not use TIG since it would be impossible to mount the tent on the rotating rigg in the middle of the winter. Time is an essence for the well drillers so there is no time to waste. So how to achieve the sealing effect on a V joint between the stainless steel two casings when welding horizontally and……the slug is bubbling under the welding rod with no way to go anywhere? A number of preparations have to be done and the special technique has to be used but this is possible to achieve, believe me, it is possible.

 

Next, welding passes form the body of the weld and the weld’s cup. With the horizontal welds going on the stainless steel casing, the welder has to focus on controlling the amperage precisely so there will not be any so-called “grapes”. In different weather conditions, this could become challenging, to say the least.

 

Now the few words about abrasives. Contamination of the weld is very easily achieved when we would use mild steel abrasives used on a previous job. This is absolutely below the professional welder’s standard and will create contamination of a drinking water. Please also remember, stainless steel wire wheel is a must.

 

A few things to remember. First, the welder needs more space than a well driller when welding flanges positioned deep in the ground and the water pool can be high so have extra boots with you. I recommend long rubber CSA approved boots. Second, lifting logs are from mild steel and the required weld on them is stainless steel,  therefore take your time and weld the lifting logs on the ground in a horizontal position. The total weight of 8-10 sections, 20 feet long and 12 inch diameter are very heavy and the safety of the whole crew is in your hands. Third, sometimes the well casing comes without a machined bevel and we have to bevel it. Please remember the well drillers have to be shown your personal expectations regarding the angle of the bevel. Show them also a few tricks how to maintain the angle of the bevel throughout the whole circumference.

 

Happy drilling well drillers and happy welding welders.

Our technological advantage, efficiency and effectiveness sets us apart in the industry.

For further inquiries or to book services please contact:

Darek, @ (519) 872-2552