Palynological Studies of Wells A-1 and B-1, Western Niger Delta, Nigeria

Abstract

Palynological analyses were carried out on wells A-1 and B-1, western Niger Delta Nigeria. The intervals studied range from 6425 to 7160 feet in A-1 and B-1 wells respectively. The standard method of palynological analyses was used. Nine hundred and twenty-two (922) palynomorph counts were identified from both wells. The studied intervals are dated Late Oligocene to Middle Miocene for well A-1 and Late Eocene to Early Oligocene for well B-1, using the recovered age diagnostic species. The palynozones identified are pachydermite diederixi and Verrutricolporites spp (taxon range) zone in well A-1 which is equivalent to P500-P600 and P700 and upper to lower part of Magnastriatites howardii while Retibrevitricolporite protrudens/obodoensis (taxon range) zone and Longapertites sp - Monocolpites sp (concurrent range) zone are identified in B-1 well which is equivalent to P400-P500 and Verrucatosporites usmensis and Magnastriatites howardii.