| Reference | SSG9976L16/05 |
| Date | 1/22/2016 |
| Location | Asia |
| Scope | The company bids for the supply of 120,000 KG Fluid Loss Control / Viscosifier / Encapsulating Agent. The Specifications are as follows:- 1. Physical Properties: The material, as received, should be a free flowing white to creamish / brownish white powder free from foreign matter and visible impurities. 2. Moisture Content at: 15.00 105 +/- 2 DegC,% by mass, maximum. 3. Apparent viscosity of 1.0 % (w/v) suspension of the material as received in fresh water and 4 % salt water. Prepare a 1 % (w/v) suspension of the sample by stirring in ultimixer for 30 minutes in distilled water and 4 % salt water (prepared by dissolving 4 gms of LR grade NaCl in 100 ml distilled water)and measure apparent viscosity at 26 +/- 2 DegC by Fann VG meter. (i) Apparent viscosity in fresh water, cp : 75-100 (ii) Apparent viscosity in salt water, cp : 65-85 4. Yield of 15 cp Apparent viscosity suspension: Prepare a 15 cp apparent viscosity suspension of the sample by stirring in a multimixer for 30 minutes in distilled water and 4 % salt water (prepared by disssolving 4 gms of LR grade NaCl in 100ml distilled water) and calculate the yield of the sample which should be as follows. (i) Yield in distilled water, KL/MT, min.: 250 (ii) Yield in 4 % salt water KL/MT, min.: 200 5. Sodium Carboxy Methyl Cellulose: 85.00 Content, % by mass (dry basis) min. 6. Degree of Substitution, minimum: 1.00 7. Performance Test: A. In Fresh Water mud. (i) Preparation of base mud. Prepare a 10 % (w/v) suspension of OIL approved bentonite in distilled water and stir the suspension for 15 minutes in a multimixer so that no lumps are left after the stirring period. Age the bentonite suspension for 72 Hrs. at 90 +/- 2 DegC. After the lapse of the aging period, cool and adjust apparent viscosity in the range 15-20 cp with distilled water. Also adjust PH in the range 9.0-9.5 with 10 % NaOH solution,if necessary. Stir the suspension for 15 minutes in multimixer and determine apparent viscosity, yield value and API fluid loss of the suspension at 26 +/- 2 DegC which should be as follows. (a) Apparent viscosity, cp: 15 - 20 cp. (b) Yield value, lbs/100 ftsq: To determine (c) API fluid loss, ml: To determine (ii) Preparation of treated mud: Treat the base 7A(i) with 0.5% polyanionic cellulose (R) sample. Stir in a multimixer for 30 minutes and divide the mud into two parts. Performance at 26 +/- 2 DegC.: Measure apparent viscosity, yield value and API fluid loss of one part of treated mud 7A(ii) at 26 +/- 2 DegC which should be as follows. (a) Apparent viscosity, cp minimum.: 4 times of 7A(i,a) (b)Yield value, lb/100 ftsq. minimum: 4 times of 7A(i,b) (c) API fluid loss, ml maximum. : 40 % of 7A(i,c) Performance at 120 +/- 2 DegC.: Age second part of treated mud 7A(ii) at 120 +/- 2 DegC in rolling condition for 24 hrs. After aging, cool to 26 +/- 2DegC and stir in a multimixer for 15 minutes and determine apparent viscosity, yield value and API fluid loss of the mud at 26 +/- 2 DegC which should be as follows: (i) Apparent viscosity, cp minimum.: 3 times of 7A(i,a) (ii) Yield value,lb/100 sq.ft minimum.: 3 times of 7A(i,b) (iii) API fluid loss, ml, maximum. : 40 % of 7A(i,c) B. In Salt Water Mud: (i) Preparation of base mud : Prepare 10 % (w/v) bentonite suspension of OIL approved bentonite in distilled water and stir the suspension for 15 minutes in a multimixer so that no lumps are left after the stirring period. Age the suspension for 72 hrs at 90 +/- 2 DegC After the lapse of aging period, cool and and add 4% (w/v) NaCl (LR grade) and age for 24 hrs. at 26 +/- 2 DegC. Dilute the suspension with 4 % Nacl solution and adjust apparent viscosity in the range 15-20 cp. Adjust PH in the range 9.0-9.5 with 10 % Noah solution if necessary. Determine apparent viscosity, yield value and API fluid loss of the suspension at 26 +/- 2 DegC which should be as follows. (a) Apparent viscosity, cp: 15 - 20 (b) Yield value, lbs/100 ftsq. : To determine (c) API fluid loss, ml: To determine Treat the base mud prepared as per the 7B(i) with 0.5%(w/v) polyanionic cellulose (R) sample and stir in a multimixer for 30 minutes. Performance at 26 +/- 2 DegC. Determine apparent viscosity, yield value and API fluid loss of mud 7B(ii) above at 26 +/- 2 DegC which should be as follows : (a) Apparent viscosity, cp minimum. : 2 times of 7B(i,a) (b) Yield value,lb/100 ftsq minimum. : 1.5 times of 7B(i,b) (c) API fluid loss, ml maximum: 15 % of 7B(i,c) 8. Packing: The material should be packed in multiwalled paper bags with at least two innermost layers suitably water-proofed, strong enough to withstand rigours of transit and storage. The material should be supplied in the original packing of the manufacture. Capacity 25 Kg net per bag. 9. Marking: Each bag should have clearly legible markings as given below: (i) Name of the product. (ii) Name of the supplier / manufacturer. (iii) Date/Month/Year of manufacture. (iv) Supply order number against the supply made. N.B: Apparent viscosity and yield point shall be determined in a Fann VG meter and fluid loss by standard API low pressure fluid loss apparatus using compressed air or nitrogen as the pressure source. |
| Offer Validity | 180 days |
