March 2021

Study on cyclic water injection of offshore weak volatile reservoir considering hysteresis effect

Based on the theoretical analysis of capillary hysteresis and relative permeability hysteresis and reservoir numerical simulation, a water injection strategy study was conducted for an offshore weak volatile oil fields after long-term depletion development. The results show that if the capillary hysteresis and relative permeability hysteresis are not considered, the recovery prediction results of the subsequent water...

Author(s): Jianting Huang, Jintao Wu, Guangming Pan, Hao Li and Peng Shi  

April 2021

Performance evaluation of oil based drilling fluid formulated with castor oil

Oil based muds formulated from diesel oil have proven to be quite expensive and environmentally unfriendly. This current study focused on investigating the suitability of castor oil in formulating oil based muds. The experiment in this work was conducted at different temperature conditions ranging from 40 to 80°C. The density and specific gravity of castor oil based mud were found experimentally to be 0.3 ppg and...

Author(s): S. G. Udeagbara, N. U. Okereke, A. Kerunwa, I. Oguamah, O. I. Nwanwe, J. E. Odo, B. Ikejimba and R. Okeke

January 2021

An experimental approach to the descaling of production tubing using high pressure flat fan nozzles

The mechanical approach of utilizing high-pressure water for scale removal has gained wider acceptance by multinationals despite facing poor downhole performance challenges (cavitation) that need abrasion compensation (sand) with side effect of jeopardizing the integrity of the well completions. The replacement of sand with sterling beads was excellent with good post descaling well completion integrity at the expense of...

Author(s): Kabir H. Yar’Adua, Abubakar J..  Abbas, Salihu M., Suleiman, Abdullahi Ahmadu and Aisha Kabir

May 2021

Numerical modelling of heat and mass transfer in a gas pipe conducting system: Application to methane gas

Methane is the principal component of natural gas. In order to be liquefied, it is has to pass through a compression station where its’ temperature is lowered. An experimental investigation of the temperature drop behaviour of methane gas has been carried out. The test section is a horizontal circular tube with an inner diameter of 6 mm, an outer diameter of 8 mm and a length of 1500 mm. The physical parameters of...

Author(s): Serge Samuel Bell, René Oum Lissouck, and Rachel Raissa Ngono Mvondo,