OIL PRODUCTION Son Dao OVERVIEW Estimate production oil

OIL PRODUCTION Son Dao

OVERVIEW • Estimate production oil rate • Find well location

ESTIMATE PRODUCTION OIL RATE • Objective: § Estimate total oil production rate of all well up to 10 years using only the first 3 years (1 to 1, 096 days) of production data § Calculate the l 2 -norm of the estimation errors

ESTIMATE PRODUCTION OIL RATE • Data description

ESTIMATE PRODUCTION OIL RATE • Decline curve: Linear regression § Linear regression is the most common method of forecasting production, especially in this situation • Reasons for using it § There is currently a swing toward decline rates proportional to production rates because of lower and lower productivity wells coming on stream § If the conditions affecting the rate of production of the well are not changed by outside influences, the curve will be fairly regular

ESTIMATE PRODUCTION OIL RATE • Formula:

ESTIMATE PRODUCTION OIL RATE • Result in Matlab

ESTIMATE PRODUCTION OIL RATE • Demo

ESTIMATE PRODUCTION OIL RATE • Data after running Matlab program

ESTIMATE PRODUCTION OIL RATE • Calculate the l 2 -norm of the estimation errors § Formula: § n: Total number of data

Find Well Location • Objective: § Find a well location in terms of I-J index that can give highest initial oil production rate. Provide a report that describes your algorithm briefly, and the reasons for selecting the in-fill well location. • Note: § The problems of water and gas productions will not be considered for this project

Find Well Location • Data description • I=X • J=Y • K=Z

Find Well Location • Data structure in 3 -dimensions model

Find Well Location • How is data used in computation?

Find Well Location • Oil Volume = (Oil Saturation + Penalization) * Pore Volume • Oil saturation • Well location • Pore volume Penalization

Find Well Location • Result

Thank for your listening • Question?