Wellbore Cleanup (North Sea)SAS chemistries reduce cleaning time by 60%

Product: SAS Supply Vessel Cleaner -

The Project:

Offshore service company uses SAS WellboreCleanTM for a casing cleaning project in the North Sea. In doing so, the service team reduces cleaning times by 60% and reduced the chemical train by 70%.

The service team used SAS WellboreCleanTM to complete a drilling well so that it could handed back over to production in minimal time with minimum waste production. Not only were the team able to hand back the well in record time, but they significantly reduces the waste as compared to standard detergents/solvents.

Key project outcomes:

• Reduced downtime and brought forward well production

• Reduced the volume of waste produced from well completion

SAS WellboreCleanTM is CEFAS Gold Rated for use in offshore operations.

Yellow rate for use in Norwegian sector of the North Sea.

Carries no flag for substitution warnings and no taint warnings.

Afterwards a brine completion string was run and the well was completed and handed over to production.

Compared to competing products, SAS WellboreCleanTM reduced the chemical train by 70% and reduced total job time by 60%.

SAS WellboreCleanTM eliminated the need to use additional detergents, solvents, high viscous spacers or carryout multiple flushes with seawater.

Job Analysis & Waste Reduction:

The Treatment Process:

The SAS wellbore cleanup chemical train:

*(used at 10% concentration)

50 bbl 200 bbl50 bbl 200 bbl

Base oil Seawater SAS WellboreClean* Seawater

Total waste reduction in waste produced from the job using the SAS product was over 92%.

SAS WellboreCleanTM enabled the simple treatment of waste both on and offshore.

Base oil recovered for re-use.

Water for safe disposal to sea.

Solids recovered for disposal.

Waste from wellbore cleanup - SAS WellboreCleanTM vs. competing products

Total well returns 2419 bbl

Waste from standard & detergent/solvents 2419 bbl

SAS 184 bbl

Doc Ref: SAS/07/009Issue No: 2Issue Date: October 2013

9 Caputhall Road | Deans Estate | Livingston | EH54 8AS | United KingdomTel: +44 (0)1506 410 536 USA: +1-281-407-7515 Email: info@surfaceactive.com

SURFACE ACTIVES O L U T I O N S

(SAS116SC) Case Study