Modelling of gas recovery from South African shale reservoirs (focusing on the KWV-1 bore hole in the Eastern Cape Province)

dc.contributor.authorMakoloane, Nkhabu
dc.date.accessioned2019-05-15T12:25:44Z
dc.date.available2019-05-15T12:25:44Z
dc.date.issued2018
dc.descriptionA research report submitted to the Faculty of Engineering and Built Environment, University of the Witwatersrand, Johannesburg, South Africa, in partial fulfilment of the requirements for the Degree of Master of Science in Engineering, November 2018en_ZA
dc.description.abstractThe main aim of the study was to develop mathematical flow model of the shale gas at the Karoo Basin of South Africa (SA). The model development incorporates three systems (phases) to form a triple continuum flow model, the phases include matrix (m), natural (NF) and hydraulic fracture (HF). The model was developed from the continuity equation, and the general equations were formed. (0.05������ ���� = 3.90087 × 10−15 ��2���� ����2 + 3.90087 × 10−15 ��2���� ����2 − 1.95043 × 10−16(20 × 106 − ������), 0.01 �������� ���� = 2.00 × 10−15(20 × 106 − ������) − 2.00 × 10−9(20 × 106 − ������) + �� ���� [7.80 × 10−5 �������� ���� ] + �� ���� [7.80 × 10−5 �������� ���� ] �� ���� [0.1248269 �������� ���� ] + 0.1248269(20 × 106 − ������)− 4.98 × 10−4 = �������� ���� The model was solved using numerical method technique known as Finite Difference Method (FDM). For each phase a computer program MATLAB was used to plot the pressure gradient. Hydraulic pressure gradient fractures propagate between the distance of 100m and 500m. The model was verified using the data of Barnett Shale. Sensitivity analysis was also performed on the hydraulic permeability, drainage radius and the initial pressure of the reservoir.en_ZA
dc.description.librarianXL2019en_ZA
dc.format.extentOnline resource (x, 67 leaves)
dc.identifier.citationMakoloane, Nkhabu Robert (2018) Modelling of gas recovery from South African Shale Reservoirs (Focusing on the KWV-1 bore hole in the Eastern Cape Province), University of the Witwatersrand, Johannesburg, <http://hdl.handle.net/10539/26962>
dc.identifier.urihttps://hdl.handle.net/10539/26962
dc.language.isoenen_ZA
dc.subject.lcshHydraulic fracturing
dc.subject.lcshHydraulic fracturing--Mathematical models
dc.subject.lcshDifferential equations, Partial
dc.titleModelling of gas recovery from South African shale reservoirs (focusing on the KWV-1 bore hole in the Eastern Cape Province)en_ZA
dc.typeThesisen_ZA
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