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

Evaluation of hydraulic fracturing technological efficiency from the injected mass of proppant

UDC: 622.276.66
DOI: -

Authors:

¹ LUKOIL-Engineering LLC, Kogalym, Russia

Keywords: hydraulic fracturing of a formation, proppant agent, daily oil flow rate, water flooding, dynamic level, mass of injected proppant, hard-to-recover reserves

Annotation:

The current stage of oil and gas fields development in the Khanty-Mansiysk Autonomous Okrug – Yugra is characterized by a decrease in oil production, associated with an increase of current depletion and the share of hard-to-recover reserves (HRR), involved in development. To stabilize production levels, various methods of enhancing oil recovery and intensifying oil production are used. One of the most commonly used methods is hydraulic fracturing of a formation, but maintaining the efficiency of its use is a complex and urgent task, since over the past two decades of intensive use of this type of geological-technical measures (GTM), a trend has clearly been observed towards specific efficiency decrease with an increase of the number of well operations performed [1]. The reasons for the decrease of hydraulic fracturing efficiency include many factors – complex geological structure of productive formations, energy state of the impact areas, insufficient number of compensatory geological and technological measures, poor hydrodynamic connection between wells, advanced water flooding, presence of water-saturated interlayers, etc. Hydraulic fracturing efficiency also depends on the technological factors of the process of its planning and implementation – concentration of chemical reagents in the fracturing fluid, the rate of pumping proppant into the formation, its fraction, the mass used, etc. The authors of the article present the results of the analysis carried out to assess the technological efficiency of hydraulic fracturing depending on the mass of the proppant agent placed in the productive formation.

Bibliography:

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