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Abstract

Summary

Unconventional resources are important for exploration and production in Mexico. The Formation Chicontepec is considered unconventional tight oil & gas reservoirs. The tight reservoirs (TR) are called like that for their low permeability and porosity by petroleum and petrophysical field.

This paper provide a research about concepts, classification, physical properties and petrophysical characteristics of TR, Identification of TR with cores and well logs, geological occurrence and sedimentary characteristics of unconventional tight reservoir in Mexico.

Tight oil must not be confused with shale oil & gas, because they varied through API gravity, viscosity of fluids, extraction method and other aspects.

Reservoirs connectivity is a modifying attribute, usually limited and discontinuous; for these reason, the stratigraphic correlation is discontinuous, because its heterogeneity.

The Production cost is closed to economic limit and sometimes is overtaked.

Well electrical logs are limited by their vertical resolution in these reservoirs; the only exception is the micro-resistivity image log.

In future studies, is appropriated use equations and inversion models of well logs focus on TR.

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/content/papers/10.3997/2214-4609.201702655
2017-11-23
2024-03-29
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References

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