TAMU PETE 662 - Ch 1 (14 pages)

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Ch 1



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Ch 1

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Pages:
14
School:
Texas A&M University
Course:
Pete 662 - Production Engineering
Production Engineering Documents

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PETE 662 Production Engineering Chapter 1 The Role of Petroleum Production Engineering Ultimate Objective of Production Engineering To maximize the well productivity in a cost effective manner Components of Petroleum Production System Surface Facilities Wellhead Assembly Well Reservoir Underground Well Completion Common Reservoir Rock Sandstone Limestone Typical reservoir rock is porous and permeable X Ray Synchrotron Microtomorgraphy 3 D Image of Berea Sandstone Hydrocarbon accumulates in small pore space with pore size ranging from nm to m Rock Porosity VP Vb VP pore volume Vb bulk volume Porosity is defined as the volume fraction of the reservoir rock occupied by void space Fluid Saturations Water Saturation Oil Saturation Gas Saturation Vwater Sw VP Voil So VP Sg Vgas VP Fluid saturation is defined as the fraction of the pore space occupied by a given fluid Rock Permeability Darcy s Experiment q k p q flow rate p h1 h2 k constant permeability Permeability describes ability of fluids to flow through porous rock Permeability is a characteristic property of the porous rock Oil Well Drilling 3D Animation http www youtube com watch v a3anE3PEPP8 Underground Well Completion Wellhead Assembly Christmas Tree http oilandgastechnologies wordpress com Surface Facilities http docstoc com Ultimate Objective of Production Engineering To maximize the well productivity in a cost effective manner Oil Well Productivity Index q kh J J D 1 6 p p wf r B For steady state flow to a vertical well 1 1 7 JD re ln s rw To increase well productivity 1 maximize JD by minimizing the skin s through well stimulation and cleanup e g acidizing hydraulic fracturing etc 2 for a given J maximize flow rate q by maximizing the pressure drawdown p pwf through decreasing bottomhole flowing pressure pwf e g removing restrictions applying artificial lift etc



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