Cuadrilla completes Balcombe exploration drilling
LONDON -- Cuadrilla announced that the Balcombe exploration drilling operations have been successfully completed. The company has commenced the removal of its drilling equipment from the site, and expects to have removed all equipment by Sept. 28.
On-site operations for Balcombe involved the drilling of a vertical exploration well to an approximate depth of 2,700 ft, collecting 294 ft of rock samples on the way. Cuadrilla also carried out a set of advanced petrophysical logs, which provide valuable data about the characteristics of the underground rock and the fluids contained in those rocks.
As per UK requirements, cores from the vertical well have already been divided between Cuadrilla and the British Geological Survey, who maintain a record of all UK drilling.
In addition to the vertical well, a horizontal well was drilled through the middle Kimmeridge Micrite, which is a band of limestone rock within the Kimmeridge Clay Formation. A total distance of some 1,700 ft of horizontal drilling was achieved, drilling under the Balcombe estate. Using geosteering technology, the entire 1,700-ft distance successfully drilled within the target limestone.
The well at Balcombe also confirmed the presence of hydrocarbons. While further testing will be required to determine flow rates, Andrew Quarles, Cuadrilla’s exploration director said that “the well was a success and we are very encouraged by the findings so far.”