June 2014

Effect of water influx on the inventory of underground gas storage developed in a depleted oil reservoir

Effect of water encroachment into an underground gas storage reservoir on its storage capacity (verification of inventory) is presented. Inventory verification is to determine the amount of natural gas to be injected into a particular underground reservoir. Reservoir and production history of a depleted oil reservoir, Z-16T, located in the Niger Delta region were obtained for the analyses. A volumetric equation was used...

Author(s): Anyadiegwu C.I.C. and Anyanwu E.E.

June 2014

Evaluation of rheological properties of Detarium micocarpum, Brachystegea eurycoma using Herschel-Buckley model and their commercial availability

Drilling fluids were formulated from biomaterials such as Brachystegea eurycoma and Detarium micocarpum. The laboratory measurements were carried out, and their rheological properties then evaluated. The drilling properties such as yield point, apparent viscosity, and low shear rate yield point were determined from the experimental data. The field polypac additive that is currently in use was formulated and used as...

Author(s): Igwilo Kevin and Zakka Bala