Gulf Oil and Gas accountACCOUNT
Supply of Fluid Loss Control / Viscosifier
Viscosity
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.

Bidding Information

Offer Validity 180 days
Viscosity
Related Prooducts: Viscosity Analyzers, Gas Calibration Equipment Calibrators, Electronic, Pneumatic Concentration Conductivity Meters Density Detector, Gas Dissolved Oxygen meters Drilling Instruments Float Switch Gas meters General Indicators and Recorders Leak Locators Level meters Liquid Measurement Load cells Monitoring & Control Mud Control Mud Logging pH and REDOX Pressure gauges/ Transmitters Radiation Detection SCADA Systems Temperature gauges/ Transmitters Thermocouples Thermowells Transducers Transmitters Transmitters, Pressure Turbidity Meters Viscosity Weather Station Weighing Equipment
Related Tenders: Analyzers, Gas Calibration Equipment Calibrators, Electronic, Pneumatic Conductivity Meters Density Detector, Gas Dissolved Oxygen meters Drilling Instruments Gas meters General Indicators and Recorders Leak Locators Level meters Liquid Measurement Monitoring & Control Mud Logging Pressure gauges/ Transmitters SCADA Systems Temperature gauges/ Transmitters Thermocouples Thermowells Transmitters Transmitters, Pressure Viscosity Weather Station

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