Case study on the methods for obtaining core sample bulk volume, grain volume, pore-volume, and effective porosity utilizing the gas and liquid saturation methods. The porosity of core samples can potentially be assessed by calculation based on data collected during the experiment by conducting lab...
Porosity is known as the fraction of the volume of space between the solid particles of a
rock to the overall rock volume. All pores, cracks, vugs, inter-crystalline and intra-crystalline
spaces are included in this space. At ambient conditions, a helium porosimeter is used to evaluate
the porosity of core samples retrieved from a petroleum reservoir. The use of helium gas to
determine "true porosity" is based on the idea that helium, being the tiniest atom, should be able
to penetrate the smallest of pores, but other fluids may not. This experiment is done to evaluate
the techniques to obtain core sample bulk volume, grain volume, pore-volume, and effective
porosity by using the gas and liquid saturation method.
In this experiment, the volume of a matrix will be determined with the core samples and
without the core samples. This experiment will be using 4 core samples - A, B, C, and D. A
porosimeter with a constant helium supply of 145 psig will then be experimented together with
the core samples. After that, the same step will be repeated but without the core samples. The
data of the volume matrix, for both ‘with the core samples’ -V2 and ‘without the core samples’
-V1 will be tabulated and the results vary. Eventually, porosity of core samples can finally be
determined by calculation based on data collected during the experiment by following lab
procedures. The effective porosity of four core samples of different diameter was found 0.87,
0.62, 0.35, 0.03 respectively. Sample A has highest porosity at 0.87 indicates that sample A has a
larger pore space compared to others. The porosity of geological formations may be assessed at
great depths using well-logged data. Deeper and innovative extraction technologies must be used
to get fuel as the need for energy grows. The ability to extract unconventional fuel will be
determined by the physical qualities of the rock. From this experiment we can conclude that the
Berea core sample is a sedimentary rock that has a great amount of porosity for reservoir rocks
and the objective is achieved.
2. METHODOLOGY 7-9
● MATERIAL AND APPARATUS
● EXPERIMENT PROCEDURE
3. RESULT AND DISCUSSION 9-12
● EXPERIMENT DATA
● DATA ANALYSIS AND DISCUSSION
4. CONCLUSION AND RECOMMENDATION 13
5. REFERENCES 14-15
6. APPENDICES 15
2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller th19022ilyasyuhada. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $3.49. You're not tied to anything after your purchase.
