«Geology, geophysics and development of oil and gas fields»

Prediction of liquid drop out in condensate field

UDC: 622.276.031:(553.981+553.982)
DOI: -

Authors:

¹ Northern (Arctic) Federal University named after M.V. Lomonosov, Arkhangelsk, Russia

Keywords: flow curves to wells, indicator chart, gas condensate field, retrograde condensation, phase transitions of hydrocarbons

Annotation:

Prediction of gas condensate dropping out in the reservoir is a necessary condition for achieving field development indicators that meet the requirements of project documentation.

This paper contains the results of analysis of condensation prediction using the Rawlins – Schellhardt inflow equations and the quadratic standard inflow equation. Since it is impossible to obtain flow rates based on the results of direct metering of flow rates in the whole range of bottom hole pressures from initial to atmospheric pressure, the correct choice of the equation became very crucial.

The authors briefly reviewed the forces influencing the moving fluid in field under changing pressure conditions while condensate containing formation is being depleted. By the way, the IPR curves are as well demonstrated to display the effects, caused by applicable forces.

Moreover, the authors performed the analysis of applicability of equations with explanation of factors and reasons leading to changes in IPR curves, which were made with described equations.

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