Westminster Tower is a highly prominent landmark building situated at the junction of Albert Embankment and Lambeth Bridge. Waterloo Station (Mainline, Underground), Vauxhall Station (Mainline, Underground) and St James Park and Westminster (Underground) Stations are all situated within walking distance.
The tower was granted planning permission by Lambeth Council in 2014 for a redevelopment into a mixed use site containing modern office space, luxury apartments and penthouses. The architectural design was planned to fit with the historic site using ceramics and Portland Stone to link with the buildings downstream and to have a complex façade which was sustainable and cost efficient.
Drilcorp GES were contracted to install a Geothermal Closed Loop Borehole to heat the building. However as space is at a premium in London, access issues were a problem and costs on a previous job for waste disposal were not cost effective.
Other issues on this type of installation included bit wear, damage to pumps and slow penetration rates all of which caused project down time.
Drilcorp approached a supplier of a new mud treatment system with a difference and decided to do a field trial.
The new system comes in a range of sizes to suit every borehole, from large diameter and depths of over 200.00mtrs to your ever popular Geobore S coring systems. It is capable of treating your drilling fluids through a process of a Shale Shaker and centrifuge before producing a clean drilling fluid for re-use.
The compact system can fit on a road towable trailer and comes with its own power source, or it can be as big as an Artic truck depending on application. The system used had a fluid capacity of 3m3 which meant it was great for Geobore S or open hole drilling of up to 200.00mtrs with an 8” diameter.
The mud treatment system was easily manoeuvrable in to tight spaces. Once set up and filled with fluid the system proved extremely efficient and straight forward to operate. The shaker system placed the larger drill cuttings directly into a skip while the centrifuge was set to remove fine particulates down to a size of 5 microns. The combined cuttings were dry enough to allow disposal straight into a normal soils skip.