BENTONITE GRADE DETAILS

BENTONITE GRADE DETAILSDrilling Grade Bentonite Producers Manufacturerand Supplier:Bentonite is as a mud constituent for oil- and water- well drilling. Its role is mainly to seal the boreholewalls, to remove drill cuttings and to lubricate the cutting head. The special higher mud yield results inusing less quantity of Bentonite for the same standard mud. This results in lesser requirement ofBentonite.  Retains thixotopic properties when met with brine and high temperature in deep drilling  Gives high barrel yield  Withstands formation pressureAPI 13A Section – 4 Grade Bentonite Powder:Physical Analysis: PROPERTIES PROTOCOL UNIT REQUIRED RESULTViscometer Dial Reading at 600 34 API Spec. 13A:2004/ r/min 30 2.85 rpm ISO 13500: 1998 _ 3 Max 14.4 Yield Point / Plastic Viscosity ML 15 Max 10 API Spec. 13A:2004/ 10.0 max. Ratio ISO 13500: 1998 % by weight 3.0 - 4.0 Filterate Volume API Spec. 13A:2004/ ISO 13500: 1998 Moisture Content API Spec. 13A:2004/ Dry Screen Analysis(Residue ISO 13500: 1998 Greater than 75 Microns)% API Spec. 13A:2004/ % by weight 4.0 max. ISO 13500: 1998

API 13A Section – 6 (OCMA) Grade Bentonite Powder:PROPERTIES PROTOCOL UNIT REQUIRED RESULTViscometer Dial Reading at 600 rpm API Spec. 13A:2004/ ISO r/min 30 40 13500: 1998 6 Max 4.7 _ 16 Max 15.4Yield Point / Plastic Viscosity Ratio API Spec. 13A:2004/ ISO 13.0 max. 10 -12 13500: 1998 ML % byFilterate Volume API Spec. 13A:2004/ ISO weight 13500: 1998Moisture Content API Spec. 13A:2004/ ISO 13500: 1998Dry Screen Analysis(Residue Greater API Spec. 13A:2004/ ISO % by 2.5 max. 2.0than 75 Microns)% 13500: 1998 weightOCMA DFCP – 4 Grade Bentonite Powder:Physical Analysis:PROPERTIES PROTOCOL UNIT REQUIRED RESULT bbls/2000lbs 90 min 99 - 115Yield OCMA DFCP-4 13 - 14 ml 15.0 max. 10.0 - 12.0A.P.I. Filterate Loss OCMA DFCP-4 % by weight 15.0 max. 98.5Moisture Content API Spec. 13A:2004/ % by weight 98.0 min. ISO 13500: 1998 1.75 % by weight 2.5 maxDry Screen Analysis OCMA DFCP-4 100 Mesh SieveWet Screen Analysis OCMA DFCP-4 200 Mesh Sieve residue

O.C.M.A. GRADE BENTONITE POWDER*/LUMPSPROPERTY UNIT REQUIREDYield M3/tonne 16.0 min.A.P.I. Filterate Volume ml 15.0 max.Moisture Content % by weight 15.0 max.Residue greater than 75 micron (200 % by weight 2.5 max.BSS)Dry Screen Analysis to pass 150 micron % by weight 98.0 min.( 100 BSS) *A.P.I./O.C.M.A SECTION 11 GRADE BENTONITE POWDER/LUMPSREQUIREMENTS SPECIFICATIONSUSPENSION PROPERTIESViscometer Dial Reading at 600 rpm 30, minimumYield Point/ Plastic Viscosity Ratio 6, maximumFilterate Volume 16.0 cm3, maximumResidue greater than 75 micrometers 2.5 wt. Percent, maximumMoisture 13.0 wt. Percent, maximum .A.P.I. 13 A SECTION 9 GRADE BENTONITE POWDERREQUIREMENTS SPECIFICATIONSUSPENSION PROPERTIESViscometer Dial Reading at 600 rpm 30, minimumYield Point/ Plastic Viscosity Ratio 3, maximumFilterate Volume 15.0 cm3, maximumResidue greater than 75 micrometers 4.0 wt. Percent, maximum

Foundry Grade Bentonite Producers Manufacturerand Supplier:All cast iron, steel & malleable iron foundries are almost using Bentonite with cost efficient results, kutchregion is famous for a very good sodium Bentonite for casting industries. For continuous mould making alsokutch Bentonite is used successfully. Our foundry grade Bentonite powder gives good flow ability. Compactability and thermal stability for the production of high quality castings.We maintaining following parameter which help to make high quality castings  High gelling time which gives high strength in less mulling time  pH Maintaining  Active clay maintaining  High strength on good compatibility Physical properties Unit Protocol IndounibondIndoexpobondIindomaxbond SeabondBase Exchange Capacity meq/100 IS 110 110 110 110Methylene blue value gms 12446:1988 mg ofSwelling capacity MB/gm IS 400 + 20 420 + 20 420 + 20 420 + 20 12446:1988Gelling time cc IS 30 min 35 min 30 min 35 minGel formation index sec 12446:1988pH Value ml IS Instantaneous Instantaneous Instantaneous Instantaneous 12446:1988Liquid Limit pH ml/100 IS 80 - 90 85 - 95 80 - 90 85 - 95Green compressive 6186:1986Strength using 40/60 gmssand in the ratio 10:4 psi IS 9.0 - 10.0 9 - 10.2 9.0 - 10.2 9 - 10.5(B:W) 6186:1986 800 min 830 min 830 min 850 min IS 12446:1988 IS 12 12.5 13 12 12446:1988

Wet tensile strength (10:4 N/cm2 IS 0.20 - 0.25 0.25 - 0.30 0.20 - 0.25 0.30 - 0.35= B:W) 12446:1988Sieve analysis (WET) 99 min IS 90 min 99 min 99 minPassing 100 mesh 6186:1986 90 min 90 minPassing 200 mesh % 99 min % 90 minFOUNDRY GRADE BENTONITE POWDER* / LUMPSProperties Unit Monobond Multibond SuperbondFree Swelling Volume 2 mlgm/100ml 20 - 23 24 - 28 28 - 30Methylene Blue Absorption mg/gm ofValue clay 350 - 390 390 - 410 410 - 440Liquid Limit %Gel Time 2gm/20 ml second 390 - 425 425 - 550 550 - 625Moisture Content % by % No gelling 30 Instant.weight 12 - 14 12 - 14 12 - 14PH Value 2% slurry Kg/Cm2Green Compression Strength 8.0 - 8.5 9.0 – 9.5 9.5 - 10.0Bentonite: Water 7:3 % 0.85 - 0.87 0.90 – 0.92 - 0.9452/54 A.F.S. Sand 100% 0.92SandDry Mesh * 85 minimum 85 85 minimum% passing 200 B.S.S. minimumConstruction Grade Bentonite ProducersManufacturer and Supplier:Bentonite in civil engineering applications is traditionally used as a thixotropic, support and lubricant agent indiaphragm walls and foundations, in tunnelling, in horizontal directional drilling (HDD) and pipe jacking.Bentonite, due to its viscosity and plasticity, is also used in Portland cement and mortars.

Properties Protocol Unit Result Liquid Limit IS:12446-1988 ml/100 gm 400 - 450 % by wt. 12.0 Max Moisture Content API Spec. 13A:2004/ ISO 13500: 1998 % by. Wt. 10.0 max. Dry Screen Analysis (residue on 75 IS:6186-1986 um sieve ml 30 - 35 ASTM D 5890:1995 pH 9.5 - 10.0 Free Swelling Volume 2gm/100ml gm/ml 0.85 – 1.0 second PH Value of 5% gel IS:6186-1986 ml Instant Loose Bulk Density IS:7589-1974 mg/gm of clay 20 max 30 min Gel Time 2.5gm/25 ml IS:12446-1988 Filterate Volume 350 - 400 API Spec. 13A:2004/ ISO Viscosty at 600 rpm 13500: 1998 Methylene Blue Value API Spec. 13A:2004/ ISO 13500: 1998 API spe 131:2004/ ISO 10416:2002 GENERAL CHARACTERISTICS Aspect Yellow to reddish brown colour Moisture Content % by wt. 14.0 max. Dry Screen Analysis (residue on 75 um sieve % by. Wt. 25.0 max. Free Swelling Volume 2gm/100ml ml 22.0 min PH Value of 5% gel 9.5 - 10.0 Loose Bulk Density 0.85 – 1.0. RHEOLOGICAL CHARACTERISTICS AND YIELD Mixing 5 minutes on REMI MIXER ( at 4000 rpm) in distilled water at 20 degree centigrade Concentration in pure mud High Yield 120 High Yield 145 High Yield 180 After 1 hour G/l 60 40 30 Marsh Viscosity (API) Rigidity (API) Sec. 40 min 40 min 40 Filterate (API) Lbs/100ft2 3min 3min 3 min ml 20 max 20 max 23

. TYPICAL AGED SUSPENSION PROPERTIES Kg/ Cu. Metre 30 40 50 60 Apparent Viscosity (cp) Plastic Viscosity (cp) 6 10 15.5 23 Yield Point (Pa) Gel 10 sec (Pa) 357 8 Gel 10 min (Pa) Marsh Funnel (sec/l) 6 10 17 30 API Filterate(cm3) PH 246 9 Slurry Density t/m3 2 4 9 21 28.0 32.0 35.0 55.0 22.6 19.2 17.2 15.0 9.6 9.6 9.6 9.6 1,015 1,017 1,022 1,030 HIGH YIELD 120 Powered Standard yield is 120BBL/sh ton minimum in distilled water 60 Kg/M3 for 40 Marsh Viscosity HIGH YIELD 145 Standard yield is 145BBL/sh ton minimum in distilled water 40 Kg/M3 for 40 Marsh Viscosity HIGH YIELD 180 Powered Standard yield is 180 BBL/sh ton minimum in distilled water 30 Kg/M3 for 40 Marsh viscosity