CBW - Clay-bound keenan properties water; ie water mikroporistoti clay minerals and particles of th

I'm writing a diploma and an article on "structure residual oil saturation (UNPO) keenan properties at the micro level." Long hours spent in the library, allowed to form a picture keenan properties of the distribution of UNPO in the formation Unfortunately, none of the books or articles I was not able to meet the estimate of the percentage of each type of UNPO (capillary trapped, film, etc).
Thurs, 19/03/2009 - 20:00 # 4
I'm writing a diploma and an article on "structure residual oil saturation (UNPO) at the micro level." keenan properties Long hours spent in the library, allowed to form a picture of the distribution of UNPO in the formation Unfortunately, none of the books or articles I was not able to meet the estimate of the percentage of each type of UNPO (capillary trapped, film, etc).
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Donki_hot (not verified)
Matroskin
Colleagues As far as the correct value of the residual water in geophysics method of determination? And how often residual water saturation values keenan properties obtained keenan properties in the laboratory are higher, lower than the values obtained by the GIS, as a result of development of the field (the collector)?
Yes, it is a capillary bound water. About NMR true about the results of NMR logging tools I know nothing, but in the laboratory, he often gives a false value (must take into account the nuances of a bunch).
IMHO stationary keenan properties NMR properly prepared samples provides the most reliable keenan properties determination of porosity. Imeeno because I measure the judges. All other methods, including weighted measures the parameters indirectly related poristotyu.
About residual water -Traditional use data kapillyaromerii (centrifugation), superimposed on the overall poristot / water saturation. In the vault deposits "filled to capacity" keenan properties charm water GIS corresponds to the water to the core. Exception - pure gas-bearing vosokoporistye sections where the gas "press" part of bound water. There are so-called "Drying zone".
In the absence porosimetry can calculate the bound water to clean fully saturated areas of productive land and then "distribute" this dependence on the other strata. The difference related and total - corresponding free water. Works if you do not change the structure of the pore space (ie, type of reservoir about one and the same). One of the students even made a "graphing calculator in XLS .
Okay. However, the data kapillyarimetrii not entirely true, because the value of residual water depends on the applied pressure and displacement at the same time it is not known what kind of water was displaced - free or bound. And if you take into account the development of a methodology (eg, high-viscosity oil Bashkiria), the error is significant. There may have different control methods for determining quo. And yet you can tell how often and how much to separate data and GIS kapillyarimetrii?
at a particular point (we assume that the depth of a perfect binding) values will almost always vary. capillary-bound water is IMHO a variable keenan properties and depends on the depth (ie pressure / temperature) and the composition keenan properties of the mobile phase oil / gas / water / mixture. kapillyarometrii determined by the value of the bound water for the reservoir pressure ie for depth.
and differs from CBW BVI? CBW - it's the cat. You can squeeze a centrifuge, and BVI - non-preemptive (nonremovable) any reception? CBW -capill. BOUND water -? BVI - BOUND (or BULK?) Volume irreduc.
and differs from CBW BVI? CBW - it's the cat. You can squeeze a centrifuge, and BVI - non-preemptive (nonremovable) any reception? CBW -capill. BOUND water -? BVI - BOUND (or BULK?) Volume irreduc.
BVI - it summrany amount of bound water or water-related index (WIS). Part (a potsentah) pore postranstva engaged with stagnant water, which is connected by capillary forces. Calculated as the sum of time allocation to limit value T2 T2. In - BULK in both cases
CBW - Clay-bound keenan properties water; ie water mikroporistoti clay minerals and particles of the appropriate dimension. is defined only in the "oven", I do not remember the temperature immediately. In the terminology of Yamo 0.2--0.5 to 3 ms. (Of course these things eschsche question, but let us leave ..)
BVI - Bound water irreducible - usually it - kapilllyarnaya moisture, which can be pressed centrifuge, mercury and is defined in the "oven" for the tempo range (which again I do not remember ...): 3-33 ms in YAMT or 3-90 / 75 ms, but in general it is correct calculated by SBVI (S = spectral) method.
Colleagues Who knows other ways of determining the residual water, except keenan properties kapillyarimetrii? And how do you feel about the definition keenan properties Quo thermogravimetric method - pros, cons, reliability.
Wed, 25/08/2010 - 1:13 (Reply to # 20) # 23
Fri 27/08/2010 - 13:23 (Reply to # 25) # 26
Thanks, but Dean Stark is a direct method. Proceedings Dakhnova read. Thermogravimetric method can accurately determine keenan properties the content of each type of water in the rock (not in the mud!) In a short time, but why not pozlzuetsya keenan properties wide application. A kapillyarimetriya takes months (with