June-09-2022 - Thursday Daily Update - Mohammad Elkady

 

Daily Update - Mohammad Elkady - (June-09-2022)

1.  What did I do today?

Today, I did more practice on CMG Software. And I have looked into SPE 197101 and an article called Permian basin technical issues (part 1): How to manage water cut

2.  What did I find interesting/Work on? 

·      First, I practice on accurately detecting water coning by refining the grids as shown in the figure below

• To extract a subModel from an existing model: Edit grid >> Select the desired grids >> Reservoir >> Edit grid >> Extract Submodel
• To refine the model, follow the same steps as before but instead of extract subModel press refine blocks as we can see on the picture below grid refinement can accurately visualize the water coning

·      I practiced simulated hydraulic fracturing by applying Planar fracture on a well and as we see in the shown plot the difference in cumulative oil between the two cases

·      SPE 197102-MS Simulation of High water-cut in tight oil Reservoirs during Cyclic Gas Injection

o   This paper specifically addresses the water cut increase after the gas injection

o   Simulation results have shown that the factors that affects the water-cut after the gas injection are

§  initial water saturation,

§  IFT-dependent relative permeability,

§  reactivation of water-bearing layers, and

§  re-opening of unpropped hydraulic fractures (the most critical one)

·      Permian basin technical issues (part 1): How to manage water cut

o   They simulated 250,000 Permian basin wells, a Permian geological static model, and computational modifications to incorporate reservoir, rock-fluid, and fracture properties, enabling them to calibrate our model to match the Permian well production data.

o   Fracture height was the single most important determinant in getting our model to match the empirical data for water production

3.  What will I do next? 

I will search for other CMG Tutorials and do more practice. Also, try to gather more literature about excess water production in unconventional reservoirs