检测项目 Test Item

石油级 Oil Drilling Grade

MHO-80

感观 Appearance

类白色或浅米黄色粉末

Off-white or Light Yellow Free Flowing Powder

粒度

Particle size, %

80mesh

Thru USS #40≥95 Thru USS #200≤50

1% Kcl 溶 液 粘 度 , mPa.s Viscosity(cps) 1% XG in 1% Kcl solution

Brookfield LVDV-Ⅱ+, 3#spindle, 60rpm, 25±1℃

≥1200

剪切性能值 Shearing Ratio

≥6.5

PH

6.0-8.0

灰分 Ash, %

≤13.0

丙酮酸 Pyruvic acid, %

≥1.5

淀粉及瓜尔豆胶检测

Starch, Guar or their derivatives

Absent 无

干燥失重 Loss on Drying, %

≤13.0

流变学特性 Rheology Measurement (0.28% XG in sea water, FANN 35A, 0.2 spring)

600r/min，mPa.s

≥70.0

300r/min, mPa.s

≥55.0

200r/min, mPa.s

≥45.0

100r/min, mPa.s

≥35.0

6r/min, mPa.s

≥18.0

3r/min, mPa.s

≥16.0

布氏粘度(mPa.s)

Brookfield LVDV-Ⅱ+, 1#spindle,1.5rpm ,25±1℃

≥1950