Capillary Pressure Tutorial: Part 1 - It’s a Jungle in Here
- E. C. Thomas (Bayou Petrophysics)
- Document ID
- Society of Petrophysicists and Well-Log Analysts
- Publication Date
- August 2018
- Document Type
- Journal Paper
- 421 - 427
- 2018. Society of Petrophysicists & Well Log Analysts
- 2 in the last 30 days
- 285 since 2007
- Show more detail
Editor’s comment: This tutorial is designed for the “new-to-petrophysics” reader. It will be presented as a trilogy consisting of (1) Basics, (2) Significance and criticality for the upstream oil companies, and (3) Examples and Applications.
When the topic of capillary pressure was broached as a possible choice for a tutorial, I jumped on it like a duck on a June bug. I’ve had a love affair with capillary pressure since being taught the subject by J.H. (Bert) Thomeer. Bert loved capillary pressure enough to teach anyone who might bring up the subject, or to those he perceived needed a lesson (or many) concerning the fundamentals of capillary pressure, even if the “student” was unaware that he (or she) harbored misconceptions about the sacred subject of capillary pressure. Bert took a chance by hiring me, a freshly minted chemical physicist with zero knowledge about the oil business and subsurface geology. I think he saw in me a blank slate that he could mold into a petrophysicist free of misconceptions taught by misguided professors. Heck, I did not know who Archie was or his huge legacy within Shell, and his being the founder of petrophysical engineering. A real ‘greenie’ or ‘worm’ as the seasoned field hands would call me. Bert never used those derogative handles to me and set the example for all in his research group. The entire section shared in my practical training on methodology for handling rocks and running complex petrophysical measurements on rocks. I even had the luxury of learning methods from Bob Purcell, the researcher who adapted a technique used for artificial materials to one for use in real rocks. Though not technically the “inventor” of the concept, I like to think of him as the inventor of mercury capillary pressure measurements on rocks and the useful computations therefrom. Well, this is more than enough trivia about my first months at Shell E&P Research; we need to get on with discussing capillary pressure itself.
|File Size||5 MB||Number of Pages||7|