| 摘要 |
<p>A drilling liquid for use in abrasive jet drilling is formed by first dispensing microcrystalline cellulose in an aqueous liquid. The dispersion can be accomplished by severe shearing of the microcrystalline cellulose in the aqueous liquid. Thereafter, ferrous abrasive particles are suspended in the dispersion of microcrystalline cellulose in water to form the drilling liquid. The microcrystalline cellulose is ordinarily in a concentration in the range of 4 to 7 percent by weight of the abrasives-free liquid, but a portion of the cellulose can be replaced with clay to form a liquid capable of suspending ferrous abrasive particles and thereby form a drilling liquid suitable for use in the abrasive jet drilling process.</p> |
