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Consider a well-reservoir system (Fig. 1) consisting of:
- producing well W1 with total sandface flowrate and BHP , draining the reservoir volume
water injecting well W0 with total sandface flowrate
, supporting pressure in reservoir volume which includes the drainage volume of producer W1 and potentially other producers {W1 .. WN}.
The drainage volume difference
LaTeX Math Inline |
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body | \delta V_{\phi} = V_{\phi, 0} - V_{\phi, 1} >0 |
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may be related to the fact that water injection
W2 is shared between
and another reservoir or with another producer.
Image Added |
Fig. 1. Well locations. |
Case #1 – Constant flowrate production:
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