1. A method for measuring technical maturity index (TMI) for oilfield operations of an oilfield, the oilfield having a subterranean formation with geological structures and reservoirs therein, comprising: sending an assessment comprising a listing of a plurality of capabilities to at least one user associated with a first oilfield operation, wherein each of the plurality of capabilities is associated with a technology for the oilfield operations; receiving a first plurality of responses in response to the assessment for the first oilfield operation, wherein each of the first plurality of responses specifies one of the plurality of capabilities and a level of adoption corresponding to the one of the plurality of capabilities; obtaining a TMI for the first oilfield operation using the first plurality of responses; and presenting the TMI for the first oilfield operation.