rock lab 1 - Porosity:is a quantitative expression of the...

Info icon This preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Porosity :is a quantitative expression of the volume of the empty spaces (or pore volume ) between the solid grains and the total volume of the conventional core plug . 100 B P V V Where : V p =pore volume V b =bulk volume Porosity can be classified from engineering point of view into types : 1. Absolute porosity (total porosity ): is the ratio of the total volume of the voids in the rock to the total volume of the rock . 2. Effective porosity : is the ratio of the volume inter conacted voids in the rock to the total volume of the rock . Factors effect of porosity : 1. Geometry of grain packing 2. Hetrogenity of grain size :
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
3. Cemention 4. Fracture 5. Dissolution Laboratory measurements of porosity : 1. saturation method. 2. mercury method. 3. helium method We measure the porosity to determine the volume or the amount hydrocarbons ( OOIP ) in the reservoir by equation :
Image of page 2
Bo Sw) AhΦhΦ 7758 N Where : A = area Φ = porosity h = thickness Sw = water saturation Bo = formation volume factor prepare the sample with following steps : 1.
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern