This article describes the data to be includd in the various well plots.

All plots, whether standard or non-standard shall include a:

‘Check/Signature’ box for the Operations Engineer and Petroleum Geology

‘Check/Signature’ box for the Senior Operations Engineer

revision identifier indicated by a large character (A, B, C, etc.) supplemented by the date of the revision.

The standard well plan plots required for a deviated well shall include the required data for both the vertical section view and the plan view.

Vertical Section View

The following data shall be included:

• well name, field name, plan version, scales
• elevation reference used, generally BDF
• north reference, vertical section reference azimuth, declination and corrections to be applied to surveys
• target location - with shape and tolerance clearly identified
• co-ordinates of well centre and target(s)
• summary of required Deviation Programme
• vertical section view curve, labelled with critical directional points such as casing shoes, KOP, build rates/turn rates, EOB etc
• co-ordinates of the critical points as detailed above.

Plan View

The following data shall be included:

• well name, field name, plan version, scales.
• elevation reference used, generally BDF
• north reference, declination and corrections applied to survey data
• target location - with shape and tolerance clearly identified
• co-ordinates of well centre
• summary of required Deviation Programme
• planned well path, labelled with critical directional points such as casing shoes, KOP, build rates/turn rates, EOB etc
• co-ordinates of the critical points as detailed above.

Final Well Plots

Final Well Plots are to be treated as an integral part of the Drilling Programme or Programme Amendment (as applicable) and shall contain clearly identified revision numbers and approval signatures.