RISK ASSESSMENT DURING DRILLING AND COMPLETION OPERATIONS Russian patent published in 2021 - IPC G06Q50/02 G06Q10/06 

FIELD: mining.

SUBSTANCE: invention relates to risk assessment during well completion. Method comprises steps of: obtaining at least one processor using input interface, time consumption below rotary table and multiple parameters of well in field for one or more planned descents; determining, by means of at least one processor, one or more unproductive time values which correspond to one or more planned descents, based on well parameters in the field; generates, by means of at least one processor, unproductive time distribution and distribution of time expenditures below the rotary table using one or more Monte-Carlo tests and determining, using at least one processor, a risk transfer model based on total time expenditures below the rotary table (BRT) and distribution of unproductive time is determined using at least one processor based on the risk transfer model characteristic of the event associated with unproductive time in the future and degree of future risk, which evaluates non-productive time related risk characteristic in future characteristic of event associated with unproductive time in future, stimulating, at least with the help of a processor, issuing a characteristic of an event associated with unproductive time in the future, and a degree of future risk so as to affect completion of at least one drilled well.

EFFECT: technical result is higher efficiency and profitability of well completion.

9 cl, 10 dwg