The right chemistry for wellbore cleanup

Most of the work we do at SAS Production Services is in wellbore remediation and stimulation services. We have some amazing filtercake breaker products that uniquely do not require separate acids or acidizing products. We can delay your filtercake from breaking by several days and our technical team is constantly pushing back how long we can provide the delay for. It is impressive stuff.

Today however I want to put forward a less talked element of our work. This is the use of our unique chemistry in wellbore cleanup. Our first downhole work actually was in this application and for some three years we worked with ExxonMobil in the North Sea. The work was an absolute success for a number of reasons.

A simplified process

First of all our chemistry greatly simplified the wellbore cleanup process. Both at surface and in the well the reduction of the number of pills made things a lot easier to handle for the team on the rig. Some of the worst wellbore cleanup programs we have seen had over 20 cleanup pills. All of these have to be prepared, kept separate and pumped at the right time. This increases the number of people required and complicates rig logistics.

With our approach and highly effective chemistry it is possible to use a cleanup train of 3 – 4 pills. Because our chemistry is so effective in removing all mud traces the brine is also returned to specification much faster. This reduces brine requirements and reduces filtration needs.

Microemulsion chemistry

Secondly the unique microemulsion chemistry makes it possible to let the returning slops phase separate under gravity in the pits on the rig. This means a waste reduction of 70 – 97% compared to normal emulsion forming detergent pills.

That the simple change of a standard detergent to the use of our microemulsion can have such a magnificent impact was unexpected for ExxonMobil and for the waste management company involved. The waste management company simply had to leave the waste to stand in a tank and the next day all was nicely separated in oil, water and solids.

Those are the results we can achieve for you as well. We can reduce your chemical consumption by 65%, we can reduce your surface logistics tremendously and we can reduce your slops waste by over 70%.

Give us a call and let’s talk.

Remove Your Risk with SAS Breaker Products

Calling all oil operators - why pay the price for inadequate product development? By using SAS Filtercake Breaker Products you could remove the uncertainty of using bespoke formulations that have proven in the past to be difficult and risky. Here's how...

We all know microemulsions can be fragile and fickle chemistries – especially where environmental variables such as pH, salt concentrations and temperature are concerned. Indeed, some of these environmental variables have been studied in great detail in order to maximize efficiencies of microemulsion products for use in the field - adjusting for salinity effects for EOR applications for example.

Since microemulsions are so specific in their requirements it has been hugely challenging for chemical providers and service companies alike to formulate products that perform beyond these boundaries and limitations – specifically where these variables have such a range from surface pumping to downhole well conditions.

From a pragmatic perspective huge risks, costs and logistical problems arise from having to overcome these issues. Simply blending a treatment pill sufficiently for downhole use, in itself, may be a huge obstacle if the formulation is not stable. It may take excessive work and time on the rig site to try and solubilize a chemistry in particular brines with significant equipment and manpower requirements.

Once solubilized some products have to be deployed into the well within a matter of hours in order to be effective and to avoid having these formulations fall apart and break down. If engineering malfunctions or other delays happen at this point, then the operator may end up paying the bill for hundreds of thousands of dollars in wasted chemical - paying a second time for a fresh batch to be made up after the obstacle to deployment has been overcome.

Then there is the risk of what happens downhole when the conditions (and especially the temperature) may change. Is it really worth taking that risk? We have an alternative!

SAS Production Services Breaker products are fully and readily soluble in brines meaning simple and straight forward preparations - needing less equipment and fewer personnel due to brine compatibility. Our Breakers are also stable over time so any on site delays do not mean wasted cash and chemical – no need for new batches to be made and for hundreds of thousands of dollars to be discharged.

Finally, SASPS Breakers are both robust and temperature stable so they perform every time downhole. What's not to like? Don't take the risk of using bespoke formulations. Use the best. Use SAS Breakers.

Overview of the SAS-PS Filtercake Products

In this blog, we are going to provide you with everything you need to know about our full range of Filtercake Removal & Breaker Products. Here is a brief introduction and overview...

The SAS Production Services team has been the developing force behind many of the more well known filtercake breakers on the market today. Our expertise in developing microemulsion based oilfield products has resulted in the next generation of filtercake removal or breaker products.

Specifically aimed at resolving Oil Based Mud (OBM) damage we supply these products direct to our customers. Our track record covers West Africa, the North Sea, India and the Middle East and results in production improvements of 200% - 620%.

SAS-PS has a wide range of versatile, proven filtercake breaker products (see below) that work in virtually any type of brine system. Our unique technology means no custom formulation is needed and costs are reduced by simple, robust products that deliver the right results.

 
We believe the SAS-PS Breaker product line is the most effective and most economic option available on the market. Contact us today to discuss your requirements!