Study of compositions based on organic acids to be applied for bottomhole treatment
UDC: 622.276.63
DOI: -
Authors:
BUDKEVICH R.L.
1,
GAYFULLIN T.L.1,
ALENKIN I.A.1,
ZAKIROV R.R.1,
BELOVA T.T.1,
IBRAEV A.A.1
1 Almetyevsk State Technological University "Higher school of Oil", Almetyevsk, Russia
Keywords: bottomhole zone treatment, organic acids, terrigenous reservoir, solution, dry acid composition, clays, quartz, pore channels, rock matrix
Annotation:
In order to improve bottomhole characteristics of the wells that penetrate terrigenous reservoirs, acid treatments are widely used, during which the rock matrix is dissolved as well as, in some cases, products that clog the pore channels. Despite the large volume of research performed and many-year experience of acid treatments use, a significant number of them do not achieve the potential technological efficiency. In this regard, the problem of developing and using the most effective acid compositions for these treatments remains relevant. The authors of the article tested organically-based acid compositions and determined their main advantages for preventing secondary clogging. The selection of the dry acid-based composition has been studied as well. Possible use of dry acid-based composition in a carbonate reservoir has been studied. The scientific research resulted in developing a dry acid composition to be used in terrigenous reservoirs with a low clay content, the main effect of which is aimed at the quartz component of the reservoir.
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