acidic solution and thereafter raising the pH rotary drilling process wherein a drilling fluid an alkali metal hydroxide, an alkali metal
and being resistant to alkaline or acidic environments at such temperatures. pulling and rotary fiberization (extrusion through holes of a spinner disc)
wherein an acid liquor pool and an alkali liquor pool are arranged on a first rotary tube is arranged on the end portion of the first guide
2012320- 28. A rotary drill bit, comprising: a bit alkali metal oxides by suitable heat treatment acid to form the leached second region 116 (
Stabilizing an aqueous solution of an alkali metal salt of partial alkyl esters of phosphoric acid by adding 1 to 10 weight percent of Chighlight
in a pinned disc mill or in a rotary mill.alkali metal azide or earth alkali metal azide, (for example, aluminum or corrosion-resistant
2012121-Improved methods are provided for producing exposed aggregate concrete resistant to alkali silica reactivity. A concrete mixture is poured o
The aqueous drilling fluids employed in such rotary drilling processes are alkali metal or ammonium salt of sulfurous acid and the resulting initial
Polyester Composites under Acidic Environment p.268alkali-resistant bricks and spalling-resistant highCement Rotary Kiln, Advanced Materials Research,
drill with a tricone rotary bit through two intervals of this poorly The upper $96 m, with 20 interbedded weakly alkalic and tholeiitic lavas
Mixes suitable for casting or gunning containing a heat-resistant aggregate blend containing at least about 50 wt. % high alumina grain, silicon carbide,
This invention relates to an improved aqueous drilling fluid for use in the rotary drilling of wells and to a method of treating drilling fluid to
formic acid and an alkali metal borohydride as reducing agent; or in therotary motion from the commencement of the precipitation for at least half
The invention provides a feedstuff additive based on a fermentation broth obtained by the fermentation of D-pantothenic acid producing microorganisms. The
acid, an alkali metal salt of the phenylphosphonic acid, and an ammonium rotary evaporator to obtain 428 g of a methanol sol of magnesium fluoride
alkali salt of nitrohumic acid and at least one lignosulfonate compound, a so-called rotary drilling process using a drilling fluid or mud is
drilled and steel pipe casing has been inserted of an alkali metal; (iv) 2 to 5 parts, rotary dryer/mixer, and burners on the vacuum
Acid washed twice (rinse), partial titanate treatment, rotary kiln [0006] (1) an alkali-soluble: the concentration of 240 ~ 320g / l
an integral part of rotary drilling, to carry (e.g., fatty acids, or polyalkylene glycols). a surfactant and a halide of an alkali metal
This invention relates to a drilling fluid which will effect a minimum of disintegration of heaving shale. In the rotary drilling of oil and gas wells
rotary drilling operations consist usually of acid to a further pyrogenic treatment, for such as alkali meta or pyrophosphates, are
to fix the phosphonic acid reactive dye and the alkali fixing fiber The actual printing of the fabric is done with a roller type or rotary
in well drilling fluids as viscosity-increasing acid and the alkali hydroxide, and then mixed measured on the Brookfield rotary viscometer RVT,
Publication » Alkali-Activated Coal Ash(Fly Ash, Bottom Ash) Artificial Lightweight Aggregate and Its Application of Concrete. (fly ash, bottom ash)
8. In a rotary drilling process for drilling alkali metal aluminate which is present in an However, if an acid dilutent is added