О методе определения физических свойств пластовых флюидов в скважине

Abstract

The present paper addresses the general problems which have to be faced with while sampling and definition of properties of formation fluid as a result of PVT trials. The most important questions here are sampling of clean and representative samples of plutonic formation fluid and rapid and relatively easy way to receive valid and accurate data of fluid extracted for the moment of development in order to optimize wells operation, performing technological operations on the increase of gas/oil recovery and etc. These issues are actual both for recently discovered fields, and for producing fields, especially for ones that are located in remote and hard-to-get areas. For the purpose of these problem solutions a technique of plutonic formation fluid sampling with use of the sampler featuring presence of an additional section with gravity and viscosity gauge mounted between a sampling chamber and inlet valve has been proposed. This way of sampling will ensure receiving key parameters of fluid (gravity, viscosity) immediately during sampling. That will allow to monitor the type of sampled medium (oil, gas, water) and to receive representative samples.