| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to a curable cementing composition, preparation method thereof and a cementing method using the curable cementing composition and can be used in primary cementing using drill pipes or when bridging or abandoning wells. The curable cementing composition contains water and granular materials which contain cement dust and at least two materials selected from a group comprising: glass-like clay slate, zeolite and amorphous silica. The granular materials have at least three different particle sizes chosen from the following ranges: from approximately 7 nm to approximately 50 nm, from approximately 0.05 mcm to approximately 0.5 mcm, from approximately 0.5 mcm to approximately 10 mcm, from approximately 10 mcm to approximately 20 mcm, from approximately 20 mcm to approximately 200 mcm, from approximately 200 mcm to approximately 800 mcm, more than approximately 1 mm, where the total volume of the solid phase of the at least three granular materials ensures maximum filling of relative volume. The method of producing a curable cementing composition involves obtaining an unhydrated mixture of granular materials of said composition and adding water. The cementing method involves using said method to obtain said curable cementing composition, putting said composition into an underground formation followed by curing thereof. The invention is developed in subclaims. ^ EFFECT: high sedimentation resistance. ^ 19 cl |
