TerraHib ALP — Himprom

Purpose

Terrahib ALP aluminum-organic complex is used in oil and gas industry to stabilize rocks prone to scree and landslides. The product is reversibly soluble in water depending on the pH of the drilling fluid. When the value of the hydrogen index is in the range of 10.5-11.0 pH units, the complex is in a dissolved state, when the pH of the drilling fluid reduces, TerraHib ALP forms a colloidal precipitate. The formed colloidal phase is deposited in the pore throats and the interplanar space of clay rocks, blocking micro-fissures of clay minerals and increasing the stability of the borehole. Also, TerraHib ALP provides inhibition of clay swelling, regardless of the pH value of the drilling fluid and its changes over time, which allows additional control of the HTHP filtration index without increasing viscosity.

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Physical and chemical properties

Property

Standard

Appearance

Black powder

pH value of 2% aqueous solution, units of pH

10.0-12.5

Recommendations to application

The recommended concentration of TerraHib ALP for stabilization of sludge and borehole is 5-20 kg/m3 . To ensure efficiency and to prevent the formation of colloidal sediment when injecteing the reagent into the drilling fluid, it is necessary to maintain the pH of the drilling fluid in the range from 10.5 to 11.0 units. Before adding TerraHib ALP to a seawater system or other high-rigidity system, it is necessary to reduce the overall system rigidity to at least 400 mg/dm3 . To enhance the efficiency and create a low-permeable filtration cake, it is recommended to use TerraHib ALP together with a fine latex consolidator HimSeal.