020 8541 7107
020 8541 9447
Mr Tidswell-Pretorius/ Mr Oldridge
Planning & Development
Angus Energy Limited
Building 3 Chiswick Park
Kingston upon Thames
566 Chiswick High Street
12 December 2016
Dear Mr Tidswell-Pretorius and Mr Oldridge Site:
Brockham Oil Field, Feltons Farm, Brockham
Proposal: Additional drilling operations at Brockham Oil Field
Thank you for your emails of 2, 6 and 9 December 2016 in relation to the Brockham No.2 well
as identified on your attached aerial photograph. In your emails you state that Angus Energy
wish to workover the existing Brockham No.2 well which would include abandoning several
open hole side track boreholes; and then to collect new data from the remaining borehole once
abandonment of the side track boreholes have taken place.
In this email, you request the County Planning Authority’s opinion on whether the following
matters would be considered maintenance works:
Work over rig to move onto Brockham as soon as possible.
Period of work to be no more than 10 days duration.
Anticipated 8 HGV transport loads of equipment as required.
Well to be killed and sealed and surface plug installed.
Well head to be removed and sent away for re-furbishment.
Pressure control equipment to be installed and tested.
Existing completion to be removed.
Well to be cleaned out to open hole section.
Cement stinger to be run into the hole and existing horizontal side-tracks to be
cemented up to casing. (this may be several side-tracks and multiple runs.
Cement to be pressure tested from surface, entire well tested to surface to proof cement
Cement milling assembly to be run in hole and cement dressed off.
Well logging equipment to be made up and run into the hole.
Plan to mirror the existing hole at 6”. Log well while going down.
Will not go deeper / further than original well bore. No new formations exposed
but just logged.
Run new casing string and hanger into well.
Cement new casing string in place (no more exposed sections).
Test casing to ensure safe.
Rig down and replace the wellhead.
You state that no new drilling into geological strata would take place nor would drilling be any
deeper than the existing borehole. You state that the proposal is for maintenance works
undertaken within the existing Brockham No. 2 borehole. You state that data logging would be
carried out within the existing borehole because when the original hole was drilled in 1987 when
logging technology was in it’s infancy and given the changes in logging technology, more data
and information can be gathered than would have been possible in 1987.
Based on the information that has been provided to the County Planning Authority contained
within emails dated 2, 6 and 9 December 2016 alongside the aerial photograph provided, the
County Planning Authority can confirm that it considers the list of works described in those
emails would amount to maintenance works and would not require the benefit of planning
Should, however, Angus Energy wish to drill any new boreholes, including new side track
boreholes from the existing Brockham No.s 1, 2 or 3; to different geological formations or to a
deeper depth or into any undrilled area than already drilled to, then the County Planning
Authority are of the opinion that planning permission would be required for such activity and a
planning application would need to be submitted.
Should you have any further queries please do not hesitate to contact me.
Mrs S Murphy
Principal Planning Officer
Minerals, Waste & County Development