S.S. CHEREPANOV,
T.R. BALDINA, LLC "LUKOIL – PERM"
A.V. RASPOPOV,
A.S. KAZANTSEV,
S.A. CHALIN,
S.A. KONDRATEV,
T.S. YAKIMOVA,
V.A. ZHIGALOV,
S.N. GLAZYRIN,
O.B. KUKUSHKINA,
M.I. KASHIN, LUKOIL−Engineering Limited PermNIPIneft Branch Office in Perm
A.A. MOKRUSHIN,
A.I. SHIPILOV, JSC "POLYEX"
M.S. TURBAKOV, Perm National Research (Polytechnic University)
Keywords: bottom hole formation zone (BHFZ); bottom hole treatment (BHT); self-diverting acid stimulation fluid; invert emulsion; eological-technical measures (GTM); enhancement of oil production (EOP); software.
The results of the industrial replication of acid stimulation technologies with the use of flow diverting systems at the fields of LLC "LUKOIL– PERM" are presented. According to the results of the works analysis carried out in 2017, the main parameters affecting the success of acidic bottomhole treatments (ABHT) using flow diverters: effective oil saturated thickness, number of previous treatments, wellhead injection pressure, ratio of acid and diverter volumes, specific consumption of acid composition. Based on the data obtained, proposals have been formed for increasing the effectiveness of acidic BHT using diverters. Compliance with the issued recommendations made it possible to mainly maintain the average increase in oil production from acidic BHT with reverse emulsion and self-diverting acid stimulation fluid at the level of 2017 in conditions of increasing water-cut of candidate wells (on average from 46 to 51 %).