FOAMED FLUID ADDITIVE FOR UNDERBALANCE DRILLING

申请公布号：CA2629177(C)

申请号：CA20082629177

申请日期：2008.04.16

申请公布日期：2012.10.09

申请人：

CLEARWATER INTERNATIONAL, L.L.C.

发明人：ZAMORA, FRANK;KAKADJIAN, SARKIS

分类号：E21B21/14;C09K8/38;E21B21/06;E21B43/40

主分类号：E21B21/14

摘要：A method of drilling or gas-lifting is disclosed where the methods including the use of a foaming agent and a gas, where the foaming agent is a keratin and the hydrostatic pressure of the fluid in the well is for a portion of the drilling or gas-lift operation less than an hyrdrostatic pressure of the formation being drilled or under production.

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