June-24-2022 - Friday Daily Update - Mohammad Elkady

 

Daily Update - Mohammad Elkady - (June-24-2022)

1.   What did I do today?

Today, I had a meeting with Dr. Misra, I did some geological analysis of the Delaware formation from EIA report to gather modelling parameters. Also, I targeted area in the Delaware basin for simulation that has one well.

2.   What did I find interesting/Work on? 

Wolfcamp formation

-          Subsea depth of Wolfcamp A in the Delaware Basin varies from 0 feet in the west to 9,500 feet subsea in the central areas

-          The Wolfcamp formation is a complex unit consisting mostly of organic-rich shale and argillaceous carbonates intervals near the basin edges

-          thickness ranges from about 800 feet to more than 7,000 feet thick in the Delaware Basin

-          Porosity of the Wolfcamp Formation varies between 2.0% and 12.0% and averages 6.0%

-          average permeability is as low as 10 millidarcies.

-          TOC content in the Wolfcamp formation ranges from less than 2.0% to 8.0%

-          Analytical results of oil samples produced from Wolfcamp reservoirs also demonstrate that these oils were generated from mostly marine type II kerogens with a contribution from type III kerogens

-          EIA’s analysis of the well log and productivity suggests the best reservoir quality corresponds to the Upper Wolfcamp areas with the following characteristics:

o   Thickness is more than 1,000 feet

o   Subsea depth to the formation top is more than 3,000 feet

o   Neutron porosity ranges from 4.0% to 8.0%

o   Density ranges from 2.60 g/cm3 to 2.85 g/cm3

o   Estimated total organic carbon ranges from 1.0% to 8.0%

o   Deep resistivity ranges from 10 Ohm-meter to 80 Ohm-meter

-          The Upper Wolfcamp sections are comprised of two main facies:

o   shallow water fine-grained calcareous turbidites5 that are often interbedded with dolomite and

o   deep-water turbidites and mudstones that represent the distal accumulation

-          Wolfcamp A: Thickness ranges from about 100 feet to more than 700 feet thick in the Delaware Basin

-          Subsea depth of Wolfcamp B in the Delaware Basin varies from 0 feet in the west to -10,000 feet in the Central Basin areas

-          Wolfcamp B: Thickness ranges from about 150 feet to more than 1800 feet thick across the Delaware Basin, except in the southeast area, where Wolfcamp B is more than 4000 feet thick

Bone Spring Formation

-          TOC from Bone Spring formation samples ranges from 0.99% to 4.17%,

-          residual hydrocarbons left in the rock range from 0.26 milligram/gram (mg/g) to 1.38 mg/g.

-          Measured vitrinite reflectance6 from the selected samples averages 0.62 %Ro.

-          Analytical results show that most of the samples are oil prone Type II kerogen7, which is primarily marine organic matter.

3.   What will I do next?

I will keep gathering geological parameters needed to simulate a realistic Shale model