Field development optimization with stochastic gradient method: application to a multi-reservoir carbonate field in the Middle East

Field development planning activities involve decisions that entail multi-billion-dollar investments. Making right design choices is crucial to the techno-economic success of the project. In this paper we demonstrate how state-of-the-art numerical model-based optimization techniques can support asset teams in this complex decision-making process...

Multi-objective optimization of solar park design under climatic uncertainty

The scarcity of land near energy demand poses the challenge of designing multi-functional solar parks in terms of land use in some countries. This requires solutions accounting for multiple conflicting objectives, e.g., power generation and multi-functional use of the land (agricultural, construction, ecological). Moreover, the performance of...

Quantitative assessment of monitoring strategies for conformance verification of CO2 storage projects

We propose a quantitative model-based workflow for conformance verification of CO2 storage projects. Bayesian inference is applied to update an ensemble of simulation models that capture prior uncertainty based on mis matches with measured data. Conformance assessments are derived by comparison of updated model predictions with storage permit...

Ensemble-based well trajectory and drilling schedule optimization - Application the Olympus benchmark model

The general field development optimization problem is complex due to the potentially large number of controls of mixed type and discontinuities in the objective function related to varying numbers and types of wells being placed in a discretized grid. This may make the problem challenging or even unsuitable for certain types of optimization...

Informed production optimization in hydrocarbon reservoirs

The exploitation of subsurface hydrocarbon reservoirs is achieved through the control of production and injection wells (i.e., by prescribing time-varying pressures and flow rates) to create conditions that make the hydrocarbons trapped in the pores of the rock formation flow to the surface. The design of production strategies to exploit these...

Quantifying efficiency of field-wide surveys for verifying CO2 plume conformance during storage operations

Managing the risk of unexpected events occurring during site operations and reducing operational costs are paramount to ensure the success of CO2 storage projects. For this purpose, operators need to design cost-effective monitoring systems to detect signals that can indicate whether or not the storage site behaves as expected and will continue...

Quantifying the efficiency of surveillance strategies for subsurface CO2 storage applications

In this paper we address the challenge of efficient and reliable monitoring of subsurface CO2 storage operations for conformance verification purposes. In order to acquire a storage license, the operator has to demonstrate convincingly to the regulator that the operation of the site will conform to safety regulations, and that CO2 will remain...

Value of multiple production measurements and water front tracking in closed-loop reservoir management

This paper extends previous work on value of information (VOI) assessment in closed-loop reservoir management (CLRM) to estimate the added value of performing multiple measurements along the producing life of the reservoir. The new procedure is based on the workflow from our previous paper which allows to quantify the VOI of a single observation...