1. A 60-ft thick sandstone formation with porosity of 0.2 contains 20% in volume of CaCO₃ in a 16" radius around an 8" diameter wellbore. This CaCO₃ is to be completely removed by a 10% HCl solution during an acid stimulation. The specific gravity of 10% HCl solution is 1.07. Answer the following questions based on your calculations:

1. What is the gravimetry dissolving power of the HCl solution?
2. What is the volumetric dissolving power of the HCl solution?
3. What is the minimum volume of the HCl solution required to dissolve all the CaCO₃ in this60-ft thick sandstone formation?
4. What is the volume of the HCl solution required to fill the pore space in the region of CaCO₃ dissolution for the60-ft thick sandstone formation?
5. What is the total theoretical HCl solution volume required in the treatment of60-ft thick sandstone formation?

Answer rating: 100% (QA)

To answer the questions we need to perform some calculations based on the given data Given data Thickness of sandstone formation h 60 ft Porosity 02 V... View the full answer