International Journal of Oil, Gas and Coal Engineering

Volume 5, Issue 5, September 2017

  • Recycling of Waste Engine Oils Using Different Acids as Washing Agents

    Salah Eldeen F. Hegazi, Yasir A. Mohamd, Mohammed Ibrahim Hassan

    Issue: Volume 5, Issue 5, September 2017
    Pages: 69-74
    Received: Feb. 03, 2017
    Accepted: Feb. 27, 2017
    Published: Oct. 23, 2017
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    Abstract: This paper addresses recycling of waste engine oils treated using by (acetic acid and formic acid). A recycling process was developed which eventually led to comparable results with some of the conventional methods. This gives the recycled oil the potential to be reused in cars’ engines after adding the required additives. The advantage of using th... Show More
  • Identification of Major Crop Production Constraints and Technology Needs in H1 Agro-ecology of Alga PA in South Ari District of South Omo Zone

    Misgana Mitiku, Mehari G/michael, Tamirat Gutema, Awoke Tadesse, Wondimu Adila, Wondewosen Shiferaw, Geremew Biramo

    Issue: Volume 5, Issue 5, September 2017
    Pages: 75-79
    Received: Apr. 07, 2017
    Accepted: Apr. 26, 2017
    Published: Oct. 24, 2017
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    Abstract: The livelihood of over 93% of the people of Southern Nation Nationality and peoples Regional state of Ethiopia dependent on agriculture; however, agricultural system in the region is at subsistence level. Much effort has been put to produce or adapt agricultural technologies that would help to boost production and productivity but only few technolo... Show More
  • An Investigation on the Feasibility of Simulating the Distillation Curves and ASTM Distillation Temperature

    Khalid Farhod Chasib, Srikanth Karthik P.

    Issue: Volume 5, Issue 5, September 2017
    Pages: 80-89
    Received: Oct. 31, 2016
    Accepted: Dec. 22, 2016
    Published: Oct. 24, 2017
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    Abstract: For the reliable design of crude oil and residua fractionators and fired heaters, accurate calculation method for ASTM Distillation curves and ASTM distillation temperature at the required volume percentage distilled is necessary. The present work deals with fitting literature data of ASTM Distillation curves and obtain a new correlation suitable t... Show More
  • Effect of Network Topology on Relative Permeability; Network Model and Experimental Approaches

    Walid Mohamed Mahmud

    Issue: Volume 5, Issue 5, September 2017
    Pages: 90-96
    Received: Jan. 01, 2017
    Accepted: Jan. 31, 2017
    Published: Oct. 24, 2017
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    Abstract: The effect of topological properties on imbibition relative permeabilities and residual saturations was previously studied by utilizing quasi-static network model topologies extracted from actual sandstones 3D micro-tomographic images. Non-wetting fluid in imbibition displacements can be disconnected by snap-off as a result of swelling of wetting f... Show More
  • Determination of the Physical Properties of Near Surface Layers of Omerulu Area, Nigeria, Using Seismic Refraction Method

    Olowofela Joseph Adeniyi, Akinyemi Olukayode Dewunmi, Odumosu Olutayo, Ajani Olumide Oyewale

    Issue: Volume 5, Issue 5, September 2017
    Pages: 97-115
    Received: Apr. 05, 2017
    Accepted: Apr. 20, 2017
    Published: Oct. 24, 2017
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    Abstract: Seismic refraction method is a geophysical technique used to study physical properties of the subsurface such as layer thicknesses, travel times and velocities of seismic signals through the layers. The process of turning seismic refraction data to useful information involves use of first arrival times and offsets. In this study, the near surface i... Show More
  • Analysis of Wellbore Drilling Hydraulics Applying a Transient Godunov Scheme Considering Variations of Injected Flow Rates

    Rubén Nicolás-López, Angel Sánchez-Barra, Oscar Valdiviezo-Mijangos

    Issue: Volume 5, Issue 5, September 2017
    Pages: 116-123
    Received: May 30, 2017
    Accepted: Jun. 06, 2017
    Published: Oct. 24, 2017
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    Abstract: A new application of the Godunov scheme to describe dynamic oil-well behavior is presented. The numerical model is able to capture discontinuities associated with surface flow-rate variations. The finite volume method and Riemann problems are utilized for building the unsteady discrete solution. Initial and boundary conditions are related to cases ... Show More