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LaTeX Math Block
anchorqO
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q_O = \frac{q_o}{B_o} + R_v \,\frac{q_g}{B_g}
LaTeX Math Block
anchorqG
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q_G = \frac{q_g}{B_g} + R_s \, \frac{q_o}{B_o}
LaTeX Math Block
anchorqW
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q_W =  \frac{q_w}{B_w}
LaTeX Math Block
anchorqL
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q_L =  q_O + q_W
LaTeX Math Block
anchorq_o
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q_o = \frac{B_o \cdot (q_O - R_v \, q_G)}{1- R_v \, R_s}
LaTeX Math Block
anchorq_g
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q_g = \frac{B_g \cdot (q_G - R_s \, q_O)}{1- R_v \, R_s}
LaTeX Math Block
anchorq_w
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q_w = B_w \cdot q_W
LaTeX Math Block
anchorqt
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q_t = q_o + q_g + q_w
In-situ oil-cut:


LaTeX Math Block
anchors_o
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s_o = q_o/q_t
In-situ gas-cut:


LaTeX Math Block
anchors_g
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s_g = q_g/q_t
In-situ water-cut:


LaTeX Math Block
anchors_w
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s_w = q_w/q_t
LaTeX Math Block
anchors
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s_o+s_g+s_w = 1

Surface oil mass rate: 

LaTeX Math Block
anchorm_O1
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\dot m_O = \rho_O \cdot q_O
Surface gas mass rate: 


LaTeX Math Block
anchorm_G1
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\dot m_G = \rho_G \cdot q_G
Surface gas mass rate: 


LaTeX Math Block
anchorm_W1
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\dot m_W = \rho_W \cdot q_W
Surface total fluid mass rate: 


LaTeX Math Block
anchorm_tSURF
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\dot m = \dot m_O + \dot m_G + \dot m_W 
In-situ oil mass rate:


LaTeX Math Block
anchorm_o
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\dot m_o = (\rho_O \cdot q_o/B_o =+ \rho_OG \cdot (q_O - R_vs) \,cdot \frac{q_G))
o}{B_o} 
In-situ gas mass rate:


LaTeX Math Block
anchorm_g
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\dot m_g = (\rho_G \cdot q_g/B_g = + \rho_O \cdot (q_G - R_sv) \,cdot \frac{q_O)_g}{B_g}
In-situ water mass rate:


LaTeX Math Block
anchorm_w
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\dot m_w = \rho_W \cdot q_w/B_w
In-situ total fluid mass rate:


LaTeX Math Block
anchorm_tSUB
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\dot m = \dot m_o + \dot m_g + \dot m_w 
In-situ oil density:


LaTeX Math Block
anchorrho_o
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\rho_o = \frac{\rho_O/ + \rho_G \cdot R_s}{B_o}
In-situ gas density:


LaTeX Math Block
anchorrho_g
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\rho_g = \frac{\rho_G/ + \rho_O \cdot R_v}{B_g}
In-situ water density:


LaTeX Math Block
anchorrho_w
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\rho_w = \frac{\rho_W/}{B_w}
In-situ Total fluid density:
LaTeX Math Block
anchorrho_t
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\rho_t = \dot m/q_t = s_o \, \rho_o + s_g \, \rho_g + s_w \, \rho_w  

Total fluid compressibility:

LaTeX Math Block
anchorc
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c = \rho_t^{-1} \cdot ( s_o \, \rho_o \, c_o + s_g \, \rho_g \, c_g + s_w \, \rho_w \, c_w )

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