Assessment of Different Field Development Strategies Deploying Maximum Reservoir Contacting (MRC) Well in Carbonate Reservoir: A case study of Oilfield R

Abstract

Deploying horizontal well is one of the efficient methods to enhanced oil recovery. Maximum Reservoir Contact (MRC) well, based on the horizontal well, which indicates the contacting area of wellbore and reservoir should be as large as possible to obtain the optimum exploration effects. The purpose of this paper is to build an assessment and optimization work-flow, which guides the well pattern improvement and well-type selection via a case study of the filed R in a Middle East Carbonate Reservoir. Analyzing several field development index, like production performance, gas oil ratio, water cut, pressure, etc. in a pilot-scale well pattern both for the conventional horizontal wells and MRC wells using different injection schemes, including injection timing, injection volume, and injection components, via reservoir numerical simulation. The method using to evaluating reservoir exploration effect in this paper is numerical simulation, assuming different development strategies and well-type, via reservoir numerical simulator. Control-variate method as well as used in this study, which focus on keeping single factor analysis for the simulation. Comparing all the field development indexes among different cases while keeping other factors consistent, for example, exploring the influence from well types, which are MRC well and conventional horizontal well, two cases must be deployed the same injection schemes. Simulating different cases with analyzing the results, MRC wells obtain the better oil production generally compared with conventional horizontal wells. However, oil production performance is not the only index which is cared for in oil & gas industry, additionally, in terms of reservoir engineering, water cut, water breakthrough, gas breakthrough, gas oil ratio, oil steady production plateau, etc., while some economic indexes are extremely concerned by the experts and companies. Consequently, assessment of MRC wells effect should consider many factors from the perspective of oil & gas industry. Well trajectories adjusting with target layer or reservoir is also the MRC technique, optimization of well trajectories profits the production performance both for MRC wells and conventional horizontal wells.