SAS Products Effectively Clean-Up OBM Filtercake

One of our customers in West Africa put our Filtercake Removal & Breaker Products to the test, carrying out a laboratory evaluation to test their effectiveness on oil based mud (OBM) filtercake clean-up. Two products were chosen for this experiment, the SAS Breaker F and the SAS Breaker 162B. The aim was to simulate the effectiveness of each of these products on the dissolution and cleanup of filtercake formed by drilling fluid.

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Test Parameters...     

• BHST - 200 F (93oC)

• Pressure - 200 Psi

• Brine - KCL weighted to 9.5 ppg

• Duration - 24 hours shut in period

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The results...

In the first test we used:

Breaker F: 7.5% by volume - 0.075bbl/bbl

Breaker 162B: 8% by volume - 0.08bbl/bbl

This combination completely dissolved the filter and there was no residual carbonate left on the filtercake after application (pictured below).

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In the second test we used:

Breaker F: 10% by volume - 0.1bbl/bbl

Breaker 162B: 8% by volume - 0.08bbl/bbl

This approach was also successful in completely dissolving the filter, leaving no residual carbonate on the filtercake (pictured below).

We always provide our customers with successful results, and we can do this for you too. SAS keep costs down and get production up, so why not contact us today!

SAS Filtercake Removal West Africa Lab Study

SAS Breaker Filtercake Removal Products are suitable for oil based mud (OBM) based on synthetics, oil and esters containing calcium carbonate. The unique SAS products are robust and work with any OBM or brine type and quickly solubilize the oil from the drilling mud – no need for bespoke formulation.

A great example of the SAS Breaker 162SC at work comes from a Lab Study (which can be downloaded here) we done for one of our customers in West Africa. In the picture on the left is the untreated OBM cake. In this case we treated the filtercake with a combination of SAS Breaker 162SC and SAS Breaker F (formic acid generating). Both products were used at 10% concentration.

Perfectly solubilised in a monovalent brine and using a 24-hour soak at 200F (93C) the SAS Breaker products achieved almost complete removal.

We can do this for you on your producing or injector wells. We keep costs down and get production up! So why not contact us today to find out more!  

SAS Filtercake Breaker Products Stability & Success

The SAS team brought microemulsion chemical technology for well remediation and stimulation to the fore in the Oil and Gas industry from the first offshore commercial work undertaken in 2003 and 2004. The advantageous cleaning and water wetting capabilities of this chemical technology had first been proven by SAS in key industry waste management applications since 1998 and then in surface cleanup applications. The progression to remediating the downhole environment was a natural extension of these capabilities.

Many service companies looking to adopt our approach continue to struggle with technical and operational issues in this area of application. The technical demands of this extreme environment have proven challenging and, in turn, have presented logistical, operational and ultimately financial risks as a result. In particular the ability to provide chemical solutions that are robust to the variety of extreme environmental variables has been significant. In particular SAS Breakers:

1. Are completely and readily soluble in different brine types and densities

2. Are phase stable in different brine types and densities

3. Are temperature stable in brines

3. Are compatible with different OBMs and base oil types

4. Maintain optimal technical performance capabilities across multiple brine types

SAS Production Services has overcome all of these technical challenges and presents synergistic well remediation solutions that are reliable, robust, simple, easy to deploy in the field and which provide proven and repeatable results time and time again - irrespective of the situation for each well. In addition, SAS can provide products which:

1. Contain no alcohols or other low flash point solvents

2. Have no flag for replacement warnings under CEFAS

3. Have no odour issues and HSE downsides

4. Can be used across the board for multiple downhole remediation applications

5. Combine a multitude of different modes of action into a single effective product

6. Provide value for money and are extremely cost effective without compromising performance

7. Can offer sustained increased oil production from treated wells

In summary, if you want to realize an almost immediate yet sustained return on your investment without having to wait for bespoke formulations, and without having to run the risk of damaging wells because of environmental sensitivity affecting the potential outcome, the choice is simple. Invest in the originators of the technology and the experts in the field. The option of choice should be SAS Filtercake Removal & Breaker Products each and every time…

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!