| 摘要 |
<p>TITLE ORGANIC TITANIUM COMPOSITIONS FOR USE IN OIL AND GAS WELLS A dry, solid mixture of (a) the reaction product of (R10)4Ti with (i) H9N(R2OH)k at a titanate:amino alcohol mol ratio of about 1:1, or (ii) R3¢N(R4OH)mR?!2 at a titanate:amino alcohol mol ratio in the range between about 1:1 and about 2:1, and (b) a monosaccharide, disaccharide, or polyhydric alcohol which can be obtained by reduction of a monosaccharide, in an amount sufficient to enhance the uniform crosslinking capacity of said reaction product, wherein R1 is C1-6 alkyl; each of R2, R3 and R4 is C1-6 alkylene; R5 is H or C1-6 alkyl; k is 1-3 and g plus k equals 3; and m is 1 or 2 and m plus n equals 2. Mixtures are useful in thixotropic cements and in fluid fracture formulations for oil wells.</p> |
