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So far Bob bob has created 52 blog entries.

Does Dean Stark Remove All Water in Tight Cores?

George Asks PERM: Dear PERM, I read a paper you co-authored with Taqa, SCA2015-020, and I wonder if you have any experience with running NMR logs on Montney cores post-Dean Stark cleaning. I found your conclusion interesting that there was a material amount of water left in the core after the Dean Stark cleaning process [...]

2018-04-17T16:01:51-06:00April 18th, 2018|Ask PERM (Q&A)|0 Comments

How Can Capillary Pressure Oppose Flow of a Wetting Phase, Trapping Mechanisms

Muhammed Asks PERM: Dear PERM, When a wetting phase is displacing a non wetting phase, snapping off occurs as the potential gradient in the wetting phase across the flow segment is lower than the capillary pressure across the same flow segment; I can't understand how can capillary pressure oppose the flow of a wetting phase; [...]

2018-04-16T09:50:07-06:00April 17th, 2018|Ask PERM (Q&A)|0 Comments

Capillary Pressure Measurement for Semi-Permeable Diaphragm with Gas-Water-Oil System?

Yaho Asks PERM: Dear PERM, I want to know something about the semi-permeable diaphragm method especially about the wetting and the non-wetting fluid. Based on my knowledge in the case of gas/water system, just the nitrogen is used to apply pressure on oil to displace water out the rock sample and a semi-permeable membrane or [...]

2018-04-11T12:48:22-06:00April 16th, 2018|Ask PERM (Q&A)|0 Comments

Why Does IFT Increase When Displacing Oil by Water in a Water Wet Reservoir?

Muhammed Asks PERM: Dear sir, When displacing oil by water in a water wet reservoir, why does the interfacial tension increase when the oil thread gets smaller?  Thank you, Muhammed Dr. Jonathan Bryan from PERM Answers: Hello Muhammed, Interfacial tension is the force that has to be overcome to change the interfacial area between two [...]

2018-04-11T12:35:50-06:00April 12th, 2018|Ask PERM (Q&A)|0 Comments

My Resistivity Index ‘n’ Values Make No Sense?

Zulq Asks PERM: Hello, I have run samples for Resistivity Index and got a lot of inconsistent data for the 'n' values.  The data does not make sense.  We have re-run samples and got different data that also confuses the situation.  We would appreciate if you could advise us on possible solutions?  Thank you, Zulq [...]

2018-04-11T12:27:43-06:00April 11th, 2018|Ask PERM (Q&A)|0 Comments

CWLS Luncheon on Physical and Digital Core Analysis for Tight Reservoir Characterization

(Calgary, AB) - Wednesday April 4, 2018 - Dr. Apostolos Kantzas will be presenting at a Luncheon hosted by the Canadian Well Logging Society (CWLS) on April 25th, 2018 at noon. Check out the details below. CWLS Luncheon: Physical and Digital Core Analysis for Tight Reservoir Characterization When:                  April 25, [...]

2018-04-04T14:20:59-06:00April 4th, 2018|News|0 Comments

CSPG Short Course on CT & NMR

(Calgary, AB) - Friday March 9, 2018 - Dr. Jonathan Bryan will be teaching a Canadian Society of Petroleum Geologists (CSPG) Short Course on May 1, 2018.  Check out the details below. CSPG SHORT COURSE: Using Computer Tomography (CT) and Nuclear Magnetic Resonance (NMR) for Reservoir Characterization When:                  May 1, [...]

2018-03-09T14:08:26-07:00March 9th, 2018|Courses, News|0 Comments

In Hydraulic Fracturing why use a high capillary number? Why decrease Surface Tension?

Prachi Asks PERM: Hello, In hydraulic fracturing why it is preferable to use high capillary number in oil recovery system? Why it is preferable to decrease surface tension rather than increase in velocity? Thank you, Prachi Dr. Jonathan Bryan from PERM Answers: Hi Prachi, Thanks for your question. During hydraulic fracturing, the objective of the [...]

2017-12-11T14:21:37-07:00December 11th, 2017|Ask PERM (Q&A)|0 Comments

Dean Stark Analysis Question Regarding Fluids Collected

Jeremie Asks PERM: Hello, I have one question regarding the Dean Stark Analysis for my oil sands core.  After the analysis, can I get the clean sand, and the oil and the water, so I can perform measurements on them? Or do we loose some fluids in the process? Thank you, Jeremie Dr. Jonathan Bryan [...]

2017-11-27T13:54:19-07:00November 27th, 2017|Ask PERM (Q&A)|0 Comments

What rock core size and flow rate should I use for a flow experiment?

Michael Asks PERM: Hello, I have 2 questions: I have chosen to quarry and core my rock samples to a dimension of 10inches in length and 1.5inches in diameter for my flow experiment. But many research workers have used dimensions smaller than mine most frequently they have used 6inches in length and 1.5inches in diameter. [...]

2017-09-26T14:48:41-06:00September 26th, 2017|Ask PERM (Q&A)|0 Comments


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