REFERENCE TECHNOLOGIES CLASSIFICATION IN OIL PRODUCTION

Abstract

Indicator methods of reservoir characteristics estimation have found wide application in oil production due to their usability, relatively low cost and high efficiency. Basically to carry out that kind of work a new, stable component (for example an indicator or a reference mark) is introduced into the studying object (a productive formation). The new component changes the fluid characteristic, primarily by its component composition. The article considers the possibility of using as a reference component not an injected substance, but a certain volume of fluid with an altered property or composition without the introduction of a substance from the outside. This new property must remain until it is fixed by the observer. That way knowing the fluid (with the changed property or composition) appearance time, it is possible to judge the internal characteristic of the studying object. Aims and Objectives: o to perform a comparative analysis of developed technologies for assessing the internal state of wells and pipelines with well-known indicator methods for studying oil reservoirs; o to prove on an example of quantitative diagnostics of deposits in the pipeline a uniform basis of reference and indicator technologies in oil production. Methods Experimental and calculated (based on the equation of continuity of the liquid flow) methods have shown the possibility of assessing the internal state of the pipeline by changing the properties of the transported fluid. Results The classification of indicator and reference studies was proposed, in which the main three directions were identified. The common basis of reference technologies was defined - to effect on the fluid at the studying object with the aim of changing its properties and monitoring of this labeled liquid’s movement in time and space, which is the source of information about the object where the reference fluid moves. Experimental measurements of the time of motion of the thermal wave in the oil pipeline model are carried out.