Antony Fundia Simbiri,Ogbonna Joel Friday, Emmanuel Emeka Okoro , Daniel Okang’a Oyoo , ‘‘Investigation of the Thermal Stability of Extracted Lignin - Based Oil - Well Cement’’ International Journal of Science and Research (IJSR) ISSN: 2319-7064 SJIF (2022): 7.942 Volume 12 Issue 7, July 2023. www.ijsr.net DOI: 10.21275/SR23623174226
Antony Fundia Simbiri,Ogbonna Joel Friday, Emmanuel Emeka Okoro , Daniel Okang’a Oyoo , ‘A Technical Review of Oil and Gas Infrastructure in Kenya-Progress and Challenges.”International Journal of Engineering Research& Technlology (IJERT),ISSN:2278-0181 Vol.12 Issue 06, June 2023.
Antony Fundia Simbiri, Ogbonna Joel Friday, Emmanuel Emeka Okoro, Daniel Okang’a Oyoo ,’’Start of Art Pipeline Distribution of Oil Products in Kenya-Threats, Challenges and Prospects.” European Journal of Applied Sciences,Vol .11, Issue 3.459-484.June 25,2023. DOI:10.14738/avip.113.14713.
Antony Fundia Simbiri, Ogbonna Joel Friday, Emmanuel Emeka Okoro, Daniel Okang’a Oyoo , “State of Art of Oil and Gas Exploration in Kenya – Progress and Challenges”. International Journal of Scientific Research and Engineering Development, Vol 5, Issue 2, Mar-Apr 2022. ISSN:2581-7175.
Antony Fundia Simbiri, Ogbonna Joel Friday, Emmanuel Emeka Okoro, Daniel Okang’a Oyoo , “An Outlook of Oil and Gas Drilling Operations in Kenya – Trends and Challenges”. International Journal of Oil, Gas and Coal Engineering. Vol 10, Issue 3, May 2022, Pages 68-81. ISSN:2376-7677 (online). doi: 10.11648/j.ogce.20221003.11
Nzomo, T. K., Adewole, S. E., Awuor, K. O., & Oyoo, D. O. (2022). Performance of a horizontal well in a bounded anisotropic reservoir: Part I: Mathematical analysis. Open Engineering , 12 (1), 17-28.
Nzomo T.K., Adewole.S. E., Awuor K.O., and Oyoo.D.O. (2021).Mathematical Description of a Bounded Oil Reservoir with a Horizontal Well: Late Time Flow Period.ISSN:2710-0758. DOI 10 .33886/ajpas.v2il.188.Journal homepage:http://journal.ku.ac.ke/index.php/AIPAS.
Nzomo T.K.,Adewole.S. E.,Awuor K.O., and Oyoo.D.O. (2021).Mathematical Description of a Bounded Oil Reservoir with a Horizontal well: Early Time Flow Period.ISSN:2710-0758 DOI 10.33886/ajpas.v2il .190.Journal homepage:http://journal.ku.ac.ke
Joseph B. Skudi, Hudson Nyambaka, Mildred Nawiri, Ruth Wanjau, Charles Onindo, Daniel .O Oyoo . “Real Time NIR Application in Qualitative Discrimination and Authentication of Aflatoxins B1 and B2, G1 and G2 in sifted maize flour”. IOSR Journal of Applied Chemistry (ISOR-JAC), Vol 14, issue 08, August 2021, pages 07-14. e -ISSN:2278-5736.
Joseph B Skudi, Hudson Nyambaka, Mildred Nawiri, Ruth Wanjau and Daniel Oyoo. “Rapid Non-invasive NIR Method of Quantification of Aflatoxins in Sifted Maize Flour”. IOSR Journal of Applied Chemistry (IOSR-JAC), Volume 14, Issue 10 Ser. II (October 2021), PP 29-37. DOI: 10.9790/5736-1410022937
Mutili P M, Adewole,S.E,Awuor K.O., and Oyoo.D.O, (2023). ‘‘ Pressure Distribution of a Horizontal Well in an Oil Reservoir Subject to Simultaneous Single Edged and Bottom Water Drive Mechanisms’’. IOSR Journal of Mathematics (IOSR-JM) e-ISSN: 2278-5728, p-ISSN: 2319-765X. Volume 20, Issue 4 Ser. 3 (July. – August. 2023), PP 01-18. www.iosrjournals.org DOI: 10.9790/5728-2004030118
Mutili,P.M., Adewole,S.E,Awuor K.O., and Oyoo.D.O. (2020).Effects of Fluid and Reservoir Characteristics on Dimensionless Pressure and Derivative of a Horizontal Well in a Bounded Oil Reservoir with Simultaneous Single Edge and Bottom Water Drive. IOSR Journal of Mathematics (ISOR-JM) e-ISSN: 2278, p-ISSN: 2319-765X. Volume 16,Issue 5 Ser.IV(Sep-Oct.2020),PP 01-13.www.iosrjournals.org
Mutili, P.M., Adewole,S.E, Awuor K.O., and Oyoo,D.O .(2020).A Mathematical Model for Pressure Distribution in a Bounded Oil Reservoir Subject to Single –Edge and Bottom Constant Pressure. IOSR Journal of Mathematics(IOSR-JM) e-ISSN:2278,p-ISSN:2319-765X.Volume 16,Issue 4 Ser.1 (Jul-August.2020)P 30-36.www.iosrjournals.org
Mugendi, D.M., Mireri,C.,Kibwage, J., and Oyoo, D.O. (2020).Assesent of Land Use/Land Cover Changes Linked to Oil and Gas Exploration. Tema. Journal of land use, Mobility and Environment, 13(2), 169-190.http://dx.doi.org/10.6092/ISSN 1970-9870/6739.
Wambua, C.M., Joel, O.F.,Ikiensikimama,S.S. and Oyoo, D.O. (2019).Validation of Calculated Flow Regime Using Experimental Data with Standard Methods of an Existing Software.Uniport Journal of Engineering and science research (UJESR)Vol.4,Issue 1,2019,61-66.ISSN:2616-1192.
Wambua, C.M., Joel O.F., Ikiensikimama ,S.S.and Oyoo, D.O. (2020).Validation of Calculated Pressure Drop Using Experimental Data with Standard Methods of an Existing Software. Journal of Engineering Research and Reports. JERR, 9(3):1-10, 2019; No JERR.53705 ISSN: 2582-2926
Otieno, J. P., Oyoo, D. O. and Bichanga, R. (2018).Characterization of Dead Crude Oil from Ngamia Region Turkana county Kenya.Global Sientific journals.Volume 6, issue 12, December 2018, Online: ISSN 2320-9186 .www.globalscientificjournal.com
Odundo, J. O ., Oyoo, D.O . and Nawiri, M. P (2013).The artemisin potential of leaves from cultivars and wildlings of Artemisia annua L. grown in Western Kenya. International Journal of Education and Research Vol. 1 No. 7 1-10.
Odundo, J. O., Oyoo, D . O. and Nawiri, M. P. (2013) The Artemisia potential of flowers from Artemisia annua L. grown in Western Kenya. Industrial Crops and Products 49(2013) 233–236.
Zavarotny, B. A., Oyoo, D. O . and Korenev K. D. (2002). Formation of Associates of Formaldehydes and their inter-conversion to methylene bis-alkylphenols (MBAP) in Petroleum Refinery and Petrochemical Technology Journal Vol. 11 No ISSN 02333-5727 25-30.
Zavarotny, B. A ., Oyoo, D. O . and Korenev K. D. (2002). Ecologically friendly method of producing methylene bis-alkyl phenol (mbap)and the petrochemical products based on this method in Petroleum Refinery and Petrochemical Technology Journal Vol. 1 No ISSN 02333-5727 27-32