The report is devoted to the estimation of intensity of display of quasi-viscous properties of oils of depositions of bottom and medial Carbon. By the studies held earlier it has been demonstrated, that at the increased maintenance in oils of asphaltic-resinous components and paraffins filtering of oils in formation takes place with deflections from Darcy linear law. A consequent of oil display quasi-viscous properties is a reason of formation zones of the depressed filtering or stagnant zones, decrease of completeness of oil displacement and increase of expenses at production activity.

According to the experiments results it is established:

  • viscosity of oils with not destroyed spatial pattern is on the order and more exceed viscosity of the same oils with completely destroyed structure. Accordingly, mobility of oils in pore space in terrigene rocks due to structuring decreases at 2–17 times.

  • intensity of display of anomalies of oil viscosity and mobility in many respects depends on amount and gas-phase composition. Oil viscosity and mobility anomalies in terrigene rocks intensify with gas content increase.

  • oil with quasi-viscous properties by the character of capillary flow relate to pseudo-plastic liquids. Static pressure and gradients of pressure of shift are noted in oils with the increased maintenance of heavy paraffin hydrocarbons.

Quantitative estimations of rheological and filtration characteristics of reservoir and separated oils, which account will raise reliability of designing of development and field construction of deposits with non- Newton oils are given.

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