Wells – Processes – Separating material entering well
Reexamination Certificate
2008-05-13
2008-05-13
Dang, Hoang (Department: 3672)
Wells
Processes
Separating material entering well
C166S050000, C210S747300, C210S803000
Reexamination Certificate
active
10881223
ABSTRACT:
A wellbore completion design is provided, which creates a convective flow action that separates water and sand from hydrocarbons during production of the hydrocarbons from a subterranean formation. A deviated section of the wellbore creates the desired effect. The wellbore completion design may include a secondary bore, which intersects the deviated section of the wellbore at an acute angle, to accumulate the separated water and sand. An injection pump disposed in the toe section of the secondary bore can also be employed to pump the water back into the water containing portion of the subterranean formation. If solids are present in more than trace amounts, the toe section of the secondary bore may be formed at an acute angle to the remaining portion of the secondary bore to prevent blockage of the pump. Alternatively, a tertiary bore may be provided, so that the solids can accumulate in the secondary bore and the water can flow into the tertiary bore.
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McDaniel Billy W.
Surjaatmadja Jim B.
Dang Hoang
Halliburton Energy Service,s Inc.
Morico Paul R.
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