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Ask PERM (Q&A)

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Should Slim Tube Tests Use Reservoir Rock? | Ask PERM

Ehab Asks PERM: My question is related to the Slim Tube Test procedure and here it is; The porous media which fills the coiled tube through it the oil and solvent passes. Should this porous media of the same reservoir rock or not? My thought it is of glass beads or Otawa Sand, is not it? [...]

2016-01-18T12:09:05+00:00 January 18th, 2016|Ask PERM (Q&A)|0 Comments

What is the Effect on Trapping of Oil Drop in a Pore Doublet Throat When Oil Viscosity is High? | Ask PERM

Aya asks PERM:  What will happen if viscosity of oil was not equal to viscosity  of water , what is the general effect on trapping of oil drop in a pore doublet throat if the viscosity of oil was large ? -Aya   Dr. Jonathan Bryan from PERM Answers: This is a great question! The [...]

2016-10-25T11:54:48+00:00 January 14th, 2016|Ask PERM (Q&A)|0 Comments

General Rules of Thumb for Picking Injection Rates in a Core Flood? | Ask PERM

Binu Asks PERM: Dear sir, I am planning to conduct a core flood experiment using a restored core of 7 cm length, 3 cm diameter, 14% porosity and liquid permeability of 50 mD. The PV of the core is 15 ml. Kindly tell me how to set the injection rate in ml/hr. Is there any rule [...]

2016-01-13T17:34:16+00:00 January 4th, 2016|Ask PERM (Q&A)|0 Comments

Examples where JBN is Applied on Experimental Data with Constant Rate and Variable Pressure Drops? | Ask PERM

Mamudu Asks PERM: Dear Sir/Madam, Can I get material from you that has detailed work examples where JBN is applied on experimental data with constant rate and variable pressure drops? Thank you for your anticipated assistance. Best Regards, Mamudu   Dr. Jonathan Bryan from PERM Answers: Hello, Are you looking for a workflow of how to [...]

2016-01-13T17:33:51+00:00 December 2nd, 2015|Ask PERM (Q&A)|0 Comments

How to Calculate Water Saturation After Trimming a Plug? | Ask PERM

Julie Asks PERM: After re-trimming, is the water saturation just obtained by the subtraction of the volume of the initial plug to the re-trimmed plug? What I mean is,  As, Sw=Vw/Vpore Sw: water saturation Vw: volume of water collected Vpore: pore volume Can we use this formula after retrimming: Sw = (Vw * Vpa) / (Vp*Vpore) [...]

2016-01-13T17:33:21+00:00 September 21st, 2015|Ask PERM (Q&A)|0 Comments

What Pressure of Gas to Use for Measuring Permeability & Why Does Saturation Not Match Fluid and Gas in Pores? | Ask PERM

Julie Asks PERM: I have two main questions if you could help me: -How to choose the pressure of gas if we want to measure the permeability of a reservoir rock?  -When doing the saturation, is it possible that the pore volume is much higher than the fluid volume, if yes, what could be in the [...]

2016-01-13T17:32:52+00:00 September 1st, 2015|Ask PERM (Q&A)|0 Comments

How to Select Core Dimensions for Laboratory Polymer Flooding Experiment? | Ask PERM

Hamzah from Ryerson University Asks PERM: I would like some guidance with respect to the selection of core dimensions for a laboratory polymer flooding experiment. Throughout my literature review, I have not come across justification for the core dimensions selection. Any assistance regarding this matter would be much appreciated. Thanking you, Hamzah Dr. Jonathan Bryan from [...]

2016-01-13T17:21:57+00:00 July 27th, 2015|Ask PERM (Q&A)|0 Comments

Forced Imbibition During Hydraulic Fracturing for Tight Gas Formations? | Ask PERM

Yahya from Southern California Asks PERM: Hello, I'm currently working on forced imbibition during hydraulic fracture process in tight gas formations. To investigate this phenomena, the reliable relative permeability for water/gas and capillarity pressure data play an essential role. I was interested in the method which you applied for calculating those data for unconventional reservoirs. I really [...]

2016-01-13T17:32:08+00:00 June 25th, 2015|Ask PERM (Q&A)|0 Comments

Measuring Drainage Capillary Pressure vs Wetting Phase Saturation? | Ask PERM

David from Calgary Asks PERM: What methodology would you propose for measuring drainage capillary pressure vs. wetting phase saturation? Typical plug perm is Regards, Dave Dr. Jonathan Bryan from PERM Answers: For tight core plugs our best bet for measuring drainage capillary pressure is through centrifugation. In this approach, we would saturate the core wetting phase [...]

2016-01-13T17:31:38+00:00 May 20th, 2015|Ask PERM (Q&A)|0 Comments

NMR Log T2 Cutoff & Estimation of Permeability? | Ask PERM

Imam from Indonesia Asks PERM: Is it necessary to determine T2 cut off to obtain permeability with NMR logging?  If we don't have any NMR lab measurement data, how to adjust T2 cut off and justification for that?  I am worried when I used default T2 cut off (let's say 33 ms for clastic). I got low correlation [...]

2016-01-13T17:27:45+00:00 April 22nd, 2015|Ask PERM (Q&A)|0 Comments