Assign: 20/02/2018 Due: 27/02/2018 Porosity Calculations 1- A Reservoir has an a
ID: 701780 • Letter: A
Question
Assign: 20/02/2018 Due: 27/02/2018 Porosity Calculations 1- A Reservoir has an area of 857 acres and thickness of 53 ft., has a porosity of 27.8%. Calculate barrels of fluid that can be found in this reservoir? cal core, of 4.5 cm length and 1.8 cm, has a dry weight of 72 gm cc. Calculate the porosity of this core. 3- A-a core sample has the following data Weight of dry sample in air- 20 gnm Weight of dry sample coated with paraffin- 20.9 gm Weight of coated sample when immersed in water- 10 gm Calculate the bulk volume of this sample, B- A core sample has the following data Weight of dry crushed sample in air 16 gm Weight of Pyconometer filled with water 65 gm Weight of Pyconometer filled with water and sanmple= 75 gm Calculate the grain volume of this sample C- A core sample has the following data Weight of dry sample in air=-20 gm Weight of saturated sample in air- 22.5 gm Saturating fluid is Kerosene (Density- 0.9 gm/cc) Calculate the porosity of this sample (use data in Part A) 4- Discuss in detail how can you measure the effective porosity the total porosity - 5- Discuss in detail how you can saturate a sample.Explanation / Answer
Ans 1
Volume of reservoir = area x thickness
=( 857 acres) x (43560 ft2/acre) x (53 ft)
= 1978538760 ft3
Porosity = 27.8%
Fluid in reservoir = 1978538760 ft3 x 0.278
= 550033775.28 ft3
Barrels of fluid = 550033775.28 ft3 x 1 barrel/4.2109375 ft3
= 130620265.744 barrels