... are activated by injection induced cooling. Once SRB in the near wellbore area is activated and supplied with nutrients such as sulphate and VFA/ BTEX, it starts producing hydrogen sulphide (H 2 S) honoring the simplified chemical reaction shown in Fig. 1 . H 2 S is toxic, causes stress corrosion cracking...

... and propagate from injectors. These fractures are of great concern for both environmental reasons and strong influence on reservoir sweep and oil recovery. This paper introduces methods to fully couple reservoir simulation with wellbore flow models in fractured injection wells. A method to fully couple...

... For fluid produced from reservoir cell to wellbore over well-to-cell connections, the mobility of each phase is always upstream weighted (i.e., equal to the phase mobility evaluated on the reservoir cell). For fluid injected from wellbore to the reservoir cell, on the other hand, different...

... Abstract In the petroleum industry, there is a need to accurately obtain downhole pressure to determine the distribution of flow rates at perforations in the wellbore, which can be used to quantify near-wellbore reservoir heterogeneity, such as major fracture conduits. Traditionally, electrical...

...-of-the-art dynamic reservoir simulator with multi-segmented wellbore capability to compare the production performance over time for the same well but completed with no ICDs, conventional ICDs, and cyclonic AICDs. A synthetic but realistic three- dimensional (3-D) reservoir model has used that allowed oil...

... Abstract Reactive transport phenomenon, such as CO 2 sequestration and Microbial EOR, has been of interest in streamline-based simulations. Tracing streamlines launched from a wellbore is important especially for time-sensitive transport behaviors. However, gridblocks containing wells...

... steam from escaping the steam chamber into the production well. A numerical steam-trap based on thermodynamic approach was implemented by Edmunds (1998) and it has been used in simulations with Sink/Source or more advanced wellbore models in commercial codes. In this approach, a hard constraint...

... based on the mobility of the fluid in the vicinity of the wellbore and the smallest time step to simulate. The finest grid uses a full 3D voronoi module around the wellbore, with cells of progressively increasing size away. This module is connected to a coarser background 2.5D voronoi grid for the bulk...

... coupling wellbore Directional Drilling lateral processor Reservoir Simulation Symposium well modeling Introduction Wells are getting more complex in term of shape, completion and mechanical devices. For instance, an intelligent field contains tens to hundreds of multilateral complex wells...

...Conclusions A non-isothermal, multi-component, and multi-phase flow wellbore model for hybrid steam and solvent injection was developed by coupling mass, momentum and energy balance equations. A drift-flux approach is used to account for the slippage between phases, and the hydrocarbons...

... productivity index remained unchanged at the pre-chemical treatment stage. Case History 2 Abstract Due to the economic concerns for asphaltene related problems, chemical treatment of the near-wellbore asphaltene deposition became popular in the oil and gas industry in the past few years. However, due...

... k hf thermal conductivity of earth L v latent heat of steam P wellbore pressure P inj specified surface injection pressure Q ̇ heat transfer rate, Btu/hr r 1 tubing radius T c casing temperature T e earth temperature T m mean...

... Abstract Two-phase flow occurs during the production of oil and gas in the wellbores. Modeling this phenomenon is important for monitoring well productivity and designing surface facilities. Since transient time period in the producing well is usually shorter than reservoir time steps...

... & Simulation near-well region iteration non-darcy effect reservoir simulation completion Computation productivity procedure transmissibility darcy-forchheimer flow scaling method Upstream Oil & Gas boundary condition darcy-forchheimer equation perforation wellbore coarse grid grid...

...Literature Review Penamatcha & Aziz 6 proposed a reservoir/wellbore coupling method using an analytical 3-D reservoir model and a semi-analytical wellbore model. While this is a quick way to predict inflow pressure and flow profile, it can not incorporate reservoir and near wellbore...

... a natural linkage between production and reservoir models. In this work, we present a coupled wellbore-reservoir flow model that is based on a multiscale mixed finite element formulation for reservoir flow linked to a drift-flux wellbore flow representation. The model is able to capture efficiently...

... is the perforation rate of flow (positive for proction) from reservoir cell r into a wellbore through perforation p . The Q ip are summed over the perforations completed in cell r . The conserved quantities are all fluid components including water and, for thermal models, energy. In addition...

... region whilst keeping the remainder of the reservoir in a less detailed sense to provide boundary conditions. We describe a model in which a model of the wellbore flow in terms of pressure, velocity and saturation is solved simultaneously with the reservoir flow equations. Constraints at branches, items...

... Abstract Wellbore crossflow can have an important effect on the well production in highly stratified reservoirs. This phenomenon may also appear using EOR techniques or in advanced wells. In those cases, crossflow must be accurately represented and shutting the crossflowing layers may create...

.... flux file well path sensitivity water cut real time system reservoir simulation full field model spe 66369 simulation wellbore modeling information modeling & simulation grid simulation model unstructured grid drilling upstream oil & gas refinement cumulative oil production...