... formulation and define an appropriate NPV objective function for this specific problem along with the constraints used. In that section, we also discuss how we scale the well control (or in general design variables) and constraints to be used in our in-house nonlinearly constraint optimizer called TU-NLCPO...

... metric tons in this study). The results highlight that storing CO 2 in depleted oil and gas reservoirs exhibits the highest financial viability, particularly when used in conjunction with Direct Air Capture (DAC) technologies. These options demonstrate the greatest Net Present Values (NPVs), making...

... for injectors) on a sequence of control steps (time intervals) are optimized during the forecast period by maximizing the expected value of the net present value (or ensemble average NPV) over multiple realizations of subsurface description for the subsequent 10 years of production under a waterflooding...

... in-well fiber optic deployment ensemble exhibition realization npv spe annual technical conference carbonate reservoir Introduction The application of in-well fiber optic sensing tools has the potential to revolutionize the monitoring and measurement of oil wells, particularly in the context...

...) hysteresis scenario as uncertainty; (ii) values of the Larsen-Skauge's hysteresis model as uncertainty. In both cases, the NPV risk curves were similar to the original one, in which hysteresis was not included as uncertainty. However, changes were observed for some production indicators and the impact may...

... at the production period of each production well a higher value of BHP can shut off the production well. Therefore, we have chosen the upper bound for BHPs as low as possible to avoid this kind of situation since our goal here is to eliminate a discontinuity of the NPV with respect to any design variable...

.... Estimate a margin of error acceptable to all parties. asset and portfolio management investment regression equation banking & finance operator assumption npv information upstream oil & gas knowledge management scenario multivariate regression equation united states government...

... the petrophysical properties of the reservoir change significantly. As we know, in the NPV formulation, we have production flow rate and injection rate terms (see Eq. 6 ). Those terms depend on the value of BHP and pressure at gridblocks intersected by the well. For phase j (phase is gas or water for injectors...

... uncertainties, multiple technically feasible concepts, and key performance indicators such as net present value (NPV) and capital expenditures (CAPEX). This paper addresses the development of economic oil and gas projects through decision making enhanced by rapid digital prototyping and analysis...

... with the current fixed design. The results demonstrate that flexible designs result in higher (>5%) net present values (NPVs) for the project compared to fixed designs. Also, the flexible designs reduce the economic risk if the future market and operating conditions turn out to be unfavorable. upstream...

.... The forecasted increase in Net Present Value (NPV) and cumulative oil production (Np) ranged to 30%, and optimized water injection rates decreased by 50%. Traditional modeling techniques yielding unreliable result in one field with hundreds of producing layers and unknown lateral and vertical continuity were...

... Using the above notation and Fig. 1 , we define the objective function for the NPV of the HnP process in an unconventional shale-oil formation as (3) J ( u ) = ∑ n = 1 N c Δ t n ( 1 + b ) t n 365 [ Δ t ^ p n N...

... present value (NPV) of waterflooding (WF) under geological uncertainties by adjusting the water injection rate. They include the deep Q-network (DQN), double DQN (DDQN), dueling DDQN, and deep deterministic policy gradient (DDPG). A set of fifty reservoir realizations are generated by using...

.... The ensemble smoother with multiple data assimilation (ES-MDA) was used for the history matching processes for the first part of the numerical experiments, and the modified robust ensemble-based optimization (EnOpt) was adopted to maximize the net present value (NPV) for the second part of the numerical...

... generate additional income through GTL technology in a reasonable time frame. Economic metrics such as Net Present Value (NPV), Internal Rate of Return (IRR), Cost-to-Profit ratio and Payback Period were used to assess the success of GTL technology at each given business case. For strategic decision...

..., the utility of the technique has been limited in optimizing the Net-Present-Value (NPV) for improving the economics of these operations. In addition, the theoretical assumptions on physics limit its application to pressure-sensitive secondary or tertiary recovery processes such as gas injection...

.... The objective in this case is to find the best recovery. Using NPV as objective-function; Using RF as objective-function; Using NPV as OF until Step 1.3, and RF from Step 1.4 onwards. Abstract The selection of a production strategy, seeking maximization of field performance according to some...

... market conditions, most E&P organizations face significant capital spend cuts. More often than not, capital is allocated to projects based on a net present value (NPV) optimized portfolio. This sometimes results in the unintended consequence of sanctioning relatively capital inefficient projects...

... on the Namorado Field, Campos Basin, Brazil. Results show that the refinement step is very useful to increase NPV and to give reliability to the selected strategies. The methodology has shown to be an excellent way to apply accurate alterations in production strategies. Besides, it is a very efficient tool...

... Abstract Because systematic and project specific risks exist during the project feasibility phase, the variability and uncertainty of these risks included in economic modeling improve the estimation of an assets NPV or IRR. For strategic investment decision making, parameters are defined...