发明名称 THERMAL PULSING PROCEDURE FOR REMEDIATION OF COLD SPOTS IN STEAM ASSISTED GRAVITY DRAINAGE
摘要 A method for remediation of at least one cold spot in a producer well in a Steam Assisted Gravity Drainage (SAGD) process to increase hydrocarbon recovery from a hydrocarbon reservoir, wherein the SAGD process occurs at a site including an injection well, a production well and a steam chamber. The method includes shutting the production well and maintaining or increasing steam injection through the injection well until pressure in the steam chamber increases. The production well is then resumed while continuing steam injection at rates for normal SAGD or greater until reservoir pressure reaches normal operational pressure. Optionally, the injection/production is adjusted to return to normal SAGD operation.
申请公布号 CA2818293(A1) 申请公布日期 2013.12.08
申请号 CA20132818293 申请日期 2013.06.07
申请人 NEXEN INC. 发明人 YANG, PETER;KERR, RICHARD K.
分类号 E21B43/24 主分类号 E21B43/24
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