Settable, form-filling loss circulation control compositions comprising in situ foamed non-hydraulic sorel cement systems and method of use
First Claim
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1. A foamed cementitious composition, comprising:
- magnesium oxide (MgO);
a salt selected from the group consisting of magnesium chloride (MgCl2), magnesium sulfate (MgSO4), ammonium hydrogen phosphate (NH4H2PO4), and hydrates thereof;
a hydrazide or a semi-carbazide;
an oxidizer; and
a foam surfactant.
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Abstract
This document relates to settable, non-hydraulic foamed cement compositions comprising nitrogen gas-generating compositions used for loss circulation control.
39 Citations
4 Claims
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1. A foamed cementitious composition, comprising:
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magnesium oxide (MgO); a salt selected from the group consisting of magnesium chloride (MgCl2), magnesium sulfate (MgSO4), ammonium hydrogen phosphate (NH4H2PO4), and hydrates thereof; a hydrazide or a semi-carbazide; an oxidizer; and a foam surfactant. - View Dependent Claims (2, 3, 4)
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Specification