General description of Asphaltite powder in paint and drilling
Asphaltite is concrete floor paint is special a black lustrous asphalt to protect and decorate floors in homes and industry, both indoors and outdoors. Gilsonite concrete floor paint is a scientifically formulated treatment for masonry floors. It outperforms ordinary floor paint under traffic, washings, weather, acids and alkalis.
Paints with asphaltite base as below specification after mix with solvent:
- Concrete floor paint
- Formulated to protect and decorate masonry floors
- For interior or exterior use
- Low VOC
- Non slip
- Low sheen
- Fast drying
- No primer needed
- Cleans up with soap and water
- Latex base
The reaction of asphaltite powder in drilling fluid
Gilsonite, a native asphalt occurring in vein deposits below the surface of the ground, greatly reduces fluid loss and wall cake thickness when properly incorporate with any water based drilling fluid. Gilsonite is commonly found in Utah and Colorado. Gilsonite and other asphaltic type materials penetrate shale pore spaces as a drill bit penetrates a formation. It is assumed that a plastic-flow mechanism will allow the asphaltite to extend into the pores of the shale, thus, reducing fluid loss or mud invasion with a tendency to bond the shale and prevent sloughing. Asphaltite plates out on the bore hole to thereby reduce fluid loss.
However, asphaltite is by nature extremely hydrophobic and will not readily mix with water or water-based drilling fluids. Thus, it is difficult to use asphaltite as an effective drilling fluid additive.
Suitable Asphaltite powder in paint
When fluxed with raw tung or oiticica oil, gives an unstable liquid, that is, one which will take on excessive body when aging, and one which is not gas-proof.
The use of the present type of oils, however, results in a paint which does not take on excessive body upon aging and at the same time does not check and deteriorate rapidly upon exposure.
Driers, such as lead, cobalt, or manganese oxide, or the like, may be incorporated to control the drying time of the finished paint. Thinning oils such as mineral spirits, solvent naphtha, or any good solvent for the asphaltite and the oils, incorporated to bring the paint to the desired consistency. This normally requires about 50% to 65% by weight of thinning oils.
Use of Asphaltite use in paint
A paint consisting essentially of 20 gallons of petroleum solvent, 10 gallons of linseed oil, 10 gallons turpentine, pounds of Asphaltite pigment, 4 gallons varnish mixture consisting of 17.8% pentaerythritol rosin ester, 30.8% dehydrated castor oil, 1.4% of a mixture of lead, cobalt and manganese naphthenates, 1 gallon wetting agent consisting essentially of salts of petroleum sulfonic acids, 2 quarts of drier, and 1 pint of a hydrocarbon silicon penetrating oil, obtained by heating a mixture of finely ground silicon dioxide under pressure to a temperature of about 300 F. with a distillate product obtained by subjecting asphaltum to fractional distillation, said distillate product being that fraction which distillates at a temperature range of about 430 F. to 438 F
Color of asphaltite powder depend on temperature of melting also could be black, brown till red.
Advantage of asphaltite in paint industry
Environmental concerns have been raised and asphaltite is no longer an option.
Oil based sealers are bad for the environment, dont meet Federal specs and are outlawed in several states due to high VOCs. (pollutants)
Packing of asphaltite lump and powder form micronized
In lump form like rock packed in 500~1000kg jumbo bag
200 mesh packed in 500~1000kg jumbo bag
300 mesh packed in 500~1000kg jumbo bag
30-40 mesh packed in 500~1000kg jumbo bag
100 mesh packed in 500~1000kg jumbo bag
300 mesh packed in 25kg pp bag
mesh 200 packed 25kg multi paper bag
mesh 200 packed 50lbs multi paper bag
asphaltite 30-40 mesh packed pp bag on pallet
Bulk on vessel
Specification of asphaltite with drilling fluid application
SOLUBILITY IS CS2,WT%
SPECIFIC GRAVITY @25 C
NORMAL HEPTHAN INSOLUBLES,WT%
COLOR IS MASS
COLOR IN STREAK OR POWDER
General description cementing additive in oil and gas
Oil and gas well cementing additives is a highly developed technology. Cement-water slurries, with or without various additives, have been used for many years in cementing procedures carried out from time to time during the drilling of the productive life of a well. Cementing is often applied during drilling and completion procedures in connection with protection of production zones, isolation and confinement of water zones, support of bore hole wall, anchorage of casing,and control of lost circulation not overcome by methods associated with the circulation of drilling mud. Such cementing procedures by cementing additives are ordinarily regarded as being of primary character.
Particle size of cementing additive in oil and gas
Particle size and particle size distribution of the gilsonite determine the strength and porosity-permeability characteristics of the set cement for any given mix ratio. Where maximum strength is desirable, a coarse natural asphalt where lightest weight and lowest porosity-permeability are important and strength is to be sacrificed or is of little importance, an aggregate of minus 50 mesh or finer may be used.
Usage cementing additive in oil and gas
Cementing additive should be realized that there are various classes with respect to melting points. The lower the melt point, the faster the gilsonite will dissolve in a solvent therefor or soften under conditions of heat. Therefore, the use of gilsonite in an oil and gas well cementing composition affords an opportunity to select a class of that material which best serves the particular purpose.The heat softening characteristic of gilsonite becomes of particular importance in instances of relatively high bottom hole temperatures, where there is a tendency for the additive to soften and diffuse into the surrounding cement.
With blending of cementing addtive with other drilling mud additives increase performance in cementing and drilling fluids in a way no other single additive, the recognized industry standard for filtration control, is equally effective at controlling lost circulation and improving wellbore stability.
cementing addtive has significant health, safety and environmental (HSE) advantages over synthetic products.
- Strengthens cement bonds to shales and sands
- Reduces cement slurry density
- Prevents lost circulation
- Supports compressive strength development
Drilling fluids advantage
- Provides superior shale stabilization
- Prevents differential sticking
- Reduces or eliminates lost circulation
- Provides wellbore strengthening matrix