Page tree

Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

LaTeX Math Inline
bodyq^{\uparrow}_{O, k}

volume/day

oil production rate for 

LaTeX Math Inline
bodyk
-th producer

LaTeX Math Inline
bodyC^{\uparrow}_{O,k}

cash/volume

cost of produced oil treatment and transportation from 

LaTeX Math Inline
bodyk
-th wellhead to CMS

LaTeX Math Inline
bodyR_O

cash/volumeoil selling price

LaTeX Math Inline
bodyq^{\uparrow}_{G, k}

volume/day

gas production rate for 

LaTeX Math Inline
bodyk
-th producer

LaTeX Math Inline
bodyC^{\uparrow}_{G,k}

cash/volume

cost of produced gas treatment and transportation from 

LaTeX Math Inline
bodyk
-th wellhead to CMS

LaTeX Math Inline
bodyR_G

cash/volumegas selling price

LaTeX Math Inline
bodyq^{\uparrow}_{W, k}

volume/day

water production rate for 

LaTeX Math Inline
bodyk
-th producer

LaTeX Math Inline
bodyC^{\uparrow}_{W,k}

cash/volume

cost of produced water treatment and transportation from 

LaTeX Math Inline
bodyk
-th wellhead to CMS

LaTeX Math Inline
bodyN^{\uparrow}_P

counts

number of producers at 

LaTeX Math Inline
bodyt

LaTeX Math Inline
bodyq^{\uparrow}_{L, k}

volume/day

liquid production rate for 

LaTeX Math Inline
bodyk
-th producer

LaTeX Math Inline
bodyC^{\uparrow}_{L, k}

cash/volume

cost of fluid lift from reservoir to the 

LaTeX Math Inline
bodyk
-th wellhead, cash/volume

LaTeX Math Inline
bodyN^{\downarrow}_W

counts

number of water injectors at 

LaTeX Math Inline
bodyt

LaTeX Math Inline
bodyq^{\downarrow}_{W, i}

volume/day

water injection rate for 

LaTeX Math Inline
bodyi
-th water injector

LaTeX Math Inline
bodyC^{\downarrow}_{W,i}

cash/volume

cost of water injection, including purchase, treatment, transportation and pumping into 

LaTeX Math Inline
bodyi
-th well

LaTeX Math Inline
bodyN^{\downarrow}_G

counts

number of gas injectors at 

LaTeX Math Inline
bodyt

LaTeX Math Inline
bodyq^{\downarrow}_{G, i}

volume/day

gas injection rate for 

LaTeX Math Inline
bodyi
-th gas injector

LaTeX Math Inline
bodyC^{\downarrow}_{G,j}

cash/volume

cost of gas injection, including purchase, treatment, transportation and pumping into 

LaTeX Math Inline
bodyi
-th well

LaTeX Math Inline
bodyt

monthstime

...

LaTeX Math Block
anchorGg
alignmentleft
G^{\downarrow}_{g,i} = B_{g,i} \cdot C^{\downarrow}_{G,i}


where

LaTeX Math Inline
bodyB_{w,k} = B_w(p_{wf,k}(t))

Water formation volume factor (Bw) for 

LaTeX Math Inline
bodyk
-th well

LaTeX Math Inline
bodyp_{wf,k}(t)

Bottomhole pressure in 

LaTeX Math Inline
bodyk
-th well

LaTeX Math Inline
bodyY_{w,k} = q_{W,k} / q_{L,k}

production watercut Yw in 

LaTeX Math Inline
bodyk
-th well

LaTeX Math Inline
bodyB_{o,k} = B_o(p_{wf,k}(t))

LaTeX Math Inlinebody

Oil formation volume factor (Bo) for 

LaTeX Math Inline
bodyk
-th well

LaTeX Math Inline
bodyR_{s,k} = R_s(p_{wf,k}(t))

 Solution GOR Rs in 

LaTeX Math Inline
bodyk
-th well

LaTeX Math Inline
bodyY_{g,k} = q_{G,k} / q_{O,k}

Production Gas-Oil Ratio Yg in 

LaTeX Math Inline
bodyk
-th well

LaTeX Math Inline
bodyB_{g,k} = B_g(p_{wf,k}(t))

Gas formation volume factor (Bg) for 

LaTeX Math Inline
bodyk
-th well

LaTeX Math Inline
bodyR_{v,k} = R_v(p_{wf,k}(t))

 Vaporized Oil Ratio Rv in 

LaTeX Math Inline
bodyk
-th well





Expand
titleDerivation


Panel
borderColorwheat
bgColormintcream
borderWidth7


LaTeX Math Block
anchor427RB
alignmentleft
G(t) = \sum_{p=1}^{N^{\uparrow}_P} \left[ 
(R_O -  C^{\uparrow}_{O,p}) \cdot q^{\uparrow}_{O, p} + (R_G - C^{\uparrow}_{G,p}) \cdot  q^{\uparrow}_{G, p} 
- C^{\uparrow}_{L,p} \cdot q^{\uparrow}_{L, p} - C^{\uparrow}_{W,p} \cdot q^{\uparrow}_{W, p}
\right]  
- \sum_{i=1}^{N^{\downarrow}_W} C^{\downarrow}_{W,j} \cdot q^{\downarrow}_{W, i} 
- \sum_{j=1}^{N^{\downarrow}_G} C^{\downarrow}_{G,j} \cdot q^{\downarrow}_{G, j}


LaTeX Math Block
anchor427RB
alignmentleft
G(t) = \sum_{p=1}^{N^{\uparrow}_P} \left[ 
\left[  (R_O -  C^{\uparrow}_{O,p}) + (R_G - C^{\uparrow}_{G,p}) \cdot  Y_{g,p} \right]  \cdot q^{\uparrow}_{O, p} 
- C^{\uparrow}_{L,p} \cdot q^{\uparrow}_{L, p} - C^{\uparrow}_{W,p} \cdot Y_{w,p} \cdot q^{\uparrow}_{L, p}
\right]  
- \sum_{i=1}^{N^{\downarrow}_W} C^{\downarrow}_{W,j} \cdot q^{\downarrow}_{W, i} 
- \sum_{j=1}^{N^{\downarrow}_G} C^{\downarrow}_{G,j} \cdot q^{\downarrow}_{G, j}


LaTeX Math Block
anchor427RB
alignmentleft
G(t) = \sum_{p=1}^{N^{\uparrow}_P} \left[ 
\left[  (R_O -  C^{\uparrow}_{O,p}) + (R_G - C^{\uparrow}_{G,p}) \cdot  Y_{g,p} \right]  \cdot (1- Y_{w,p}) 
- C^{\uparrow}_{L,p} \cdot q^{\uparrow}_{L, p} - C^{\uparrow}_{W,p} \cdot Y_{w,p} 
\right]  \cdot q^{\uparrow}_{L, p}
- \sum_{i=1}^{N^{\downarrow}_W} C^{\downarrow}_{W,j} \cdot q^{\downarrow}_{W, i} 
- \sum_{j=1}^{N^{\downarrow}_G} C^{\downarrow}_{G,j} \cdot q^{\downarrow}_{G, j}

Translating 

LaTeX Math Inline
bodyq^{\downarrow}_{W, i}
 and 
LaTeX Math Inline
bodyq^{\downarrow}_{G, j}
 to Sandface flowrates 
LaTeX Math Inline
bodyq^{\downarrow}_{w, i}
 and 
LaTeX Math Inline
bodyq^{\downarrow}_{g, j}
 with formation volume factor and substituting liquid production rate 
LaTeX Math Inline
bodyq^{\uparrow}_{L, p}
 from 
LaTeX Math Block Reference
anchorqL
pageLiquid production rate
 one arrives to:

LaTeX Math Block
anchor427RB
alignmentleft
G(t) = \sum_{p=1}^{N^{\uparrow}_P}  \frac{\left[  (R_O -  C^{\uparrow}_{O,p}) + (R_G - C^{\uparrow}_{G,p}) \cdot  Y_{g,p} \right]  \cdot (1- Y_{w,p}) 
- C^{\uparrow}_{L,p} \cdot q^{\uparrow}_{L, p} - C^{\uparrow}_{W,p} \cdot Y_{w,p} }
{B_w Y_{w,p} + \left[ (B_o - R_s B_g) + (B_g - R_v B_o) \, Y_{g,p} \right] \cdot (1-Y_{w,p})}
 
 \cdot q^{\uparrow}_{t, p}
- \sum_{i=1}^{N^{\downarrow}_W} C^{\downarrow}_{W,j} \cdot B_w \cdot q^{\downarrow}_{w, i} 
- \sum_{j=1}^{N^{\downarrow}_G} C^{\downarrow}_{G,j} \cdot B_g \cdot q^{\downarrow}_{g, j}

which is equivalent to 

LaTeX Math Block Reference
anchorG_sf
.


...