Somehow it happened that in the Russian companies enthalpy tables and research enthalpy tables institutes for the prediction of permeability is most often used depending on the type of lg (CRC) = f (R) or in the log-log scale (which I honestly do not understand, because the practice shows that it is all the soap and by and large the first case is no different). The very method of prediction of permeability enthalpy tables seems to me as, to put it mildly, not the wealthy, especially in the case of prediction of permeability in much compartmentalization high lithological factor.
- Formula enthalpy tables Timur (Timur) - Formula Coates (Coates), these formulas take into account the dependence of the CRC also from saturation - the method HFU (aka FZI who both call ...) - Kozeny-Carman formula (Kozeny-Carmen) as if it were the most "physicality" but all sorts of "constant tortuosity" numerically difficult to estimate {it as a joke about Chapaya - "I quadratic trinomial he has never seen - I can not imagine"}
The fact that the permeability enthalpy tables of the core is measured on a piece, and the permeability of the HPC - is averaging over a huge volume of a formation (depending of course on the time of the study) - these permeability enthalpy tables never match up close and will not lay down.
Ghosh wrote:
- Formula Timur (Timur) enthalpy tables - Formula Coates (Coates), these formulas take into account the dependence of the CRC also from saturation - the method HFU (aka FZI who both call ...) - Kozeny-Carman formula enthalpy tables (Kozeny-Carmen) as if it were the most "physicality" but all sorts of "constant tortuosity" numerically difficult to estimate {it as a joke about Chapaya - "I quadratic trinomial he has never seen - I can not imagine"}
The fact that the permeability of the core is measured on a piece, enthalpy tables and the permeability of the HPC - is averaging over a huge volume of a formation (depending of course on the time of the study) enthalpy tables - these permeability never match up close and will not lay down.
"The fact that the permeability of the core is measured on a piece, and the permeability of the HPC - is averaging over a huge volume of a formation (depending enthalpy tables of course on the time of the study) - these permeability never match up close and will not lay down." - And how then to explain it to the customer! ??? According enthalpy tables to one ARC PIP other, third-party whatsoever. In some literature, you can learn more about
I do not know what there is to be a customer that would not understand these truths. Try to write a letter where they explain the fundamental difference between these permeabilities. respectively, enthalpy tables and the area of application of the obtained values the same variety. the way in RD research wells there is a sign which clearly painted the accuracy and reliability of the data obtained during their PIP core and DRO! See Table 1 in the RD 153-39-109-01 "Implementation of GIS, well testing," there is very informative to determine the permeability and others. Methods. Unfortunately not able to download the file rarovsky this fucking site, weighs 6 MB and writes to me that I am not allowed to download these types of files. That for x ..? admins .. when things will get better?
all for myself, I understand this: the permeability of GIS - permeability rock matrix (without enthalpy tables fluid saturation, absolute) - the largest value is obtained, is dependent on the porosity of the core permeability - permeability reservoir in a small radius (PHAs) - it is less than the GIS (laboratory determination) enthalpy tables permeability DRO - permeability within a radius = radius enthalpy tables covered by the survey (the same phase (depending enthalpy tables on the saturation of the reservoir)) usually permeability DRO is approximately equal to 10-20% of the permeability of the GIS (according to my observations on some fields) Permeability on core practically equal permeability MDT permeability DRO sometimes coincides with the core permeability (rare)
I do not know what there is to be a customer that would not understand these truths. Try to write a letter where they explain the fundamental difference between these permeabilities. respectively, and the area of application of the obtained values the same variety. the way in RD research wells there is a sign which clearly painted the accuracy and reliability of the data obtained during their PIP core and DRO! See Table 1 in the RD 153-39-109-01 "Implementation of GIS, well testing," there is very informative to determine the permeability and others. Methods. Unfortunately not able to download the file rarovsky this fucking enthalpy tables site, weighs 6 MB and writes to me that I am not allowed to download these types of files. That for x ..? admins .. when things will get better?
all for myself, I understand this: the permeability of GIS - permeability rock matrix (without fluid saturation, absolute) - the largest value is obtained, is dependent on the porosity of the core permeability - permeability reservoir in a small radius (PHAs) - it is less than the GIS (laboratory determination) permeability DRO - permeability within a radius = radius covered by the survey (the same phase (depending on the saturation of the reservoir)) usually permeability DRO is approximately equal to 10-20% of the permeability of the GIS (according to my observations on some fields) Permeability on a core almost equal to pr
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