Patent ID: 7921920
Filing Date: 2011-04-12
Classification: E21B

Abstract:
1. An anti-coning well intake for extracting hydrocarbons from geological formations, said well intake comprising: a down-tube, said down-tube configured to penetrate a geological surface and a hydrocarbon, deposit located below the surface; an anti-coning end portion at a distal end of said down-tube, said anti-coning end portion comprising an inner wall defining an intake mouth through which the hydrocarbons are removed from the hydrocarbon deposit, and at least one baffle at said distal end of said tube, wherein said end portion comprises a non-circular cross section; wherein said at least one baffle projects inwardly from said inner wall of said anti-coning end portion; and wherein said anti-coning end portion is configured to substantially limit the intake of water into said down-tube during removal of hydrocarbons from the hydrocarbon deposit via said down-tube when said anti-coning end portion is located in a pool of hydrocarbons at a level above an underlying pool of water.