-formed that are unproducible hydrocarbons- they will not flow and are too rich in carbon to be of use as petroleum products. To an oil man, they are 'unproducible'.
----------------------
Ed T- as I read the reports, BP wished to cap (temporarily seal) the well and wait on production until a platform could be built from which to produce it and several other wells to be drilled in the future to the same formation.
This would be like the platform from which they are producing several deep wells at present and which constitute the bulk of their Gulf (and American) production.