Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Main acid stage

The purpose of the main acid stage is to dissolve siliceous particles that are restricting near-wellbore permeability, plugging perforations or gravel packs. Conventional solutions for use during the main acid phase are mixtures of HCl and HF. Common HCl-HF mixtures include the following ... [Pg.71]

High-strength main acid stage 12% HCI-3% HF + additives 50... [Pg.217]

Fligh-strength main acid stage 10%HCI-2%HF 50gal/ft... [Pg.218]

Main acid stage 7,5% HCI-1,5% HF + same preflush additives 200... [Pg.220]

Main acid stage (seccnd) Retarded HF system (service company specified) 75... [Pg.221]

Main acid stage HCI-HF (variable strength) or service company-specified retarded HF system —... [Pg.224]

See other pages where Main acid stage is mentioned: [Pg.77]    [Pg.78]    [Pg.79]    [Pg.118]    [Pg.119]    [Pg.120]    [Pg.133]    [Pg.217]    [Pg.218]    [Pg.218]    [Pg.219]    [Pg.219]    [Pg.219]    [Pg.220]    [Pg.221]    [Pg.221]    [Pg.222]    [Pg.222]    [Pg.222]    [Pg.223]    [Pg.223]    [Pg.224]    [Pg.77]    [Pg.78]    [Pg.79]    [Pg.118]    [Pg.119]    [Pg.120]    [Pg.133]    [Pg.217]    [Pg.218]    [Pg.218]    [Pg.219]    [Pg.219]    [Pg.219]    [Pg.220]    [Pg.221]   
See also in sourсe #XX -- [ Pg.71 ]

See also in sourсe #XX -- [ Pg.71 ]



SEARCH



Acid stage

© 2024 chempedia.info