Some standard content:
Petroleum and Natural Gas Industry Standard of the People's Republic of China SY/T 5661-95
Viscosity enhancer for drilling fluid 80A51
Published on May 9, 1995
China National Petroleum Corporation
Implementation on November 1, 1995
Subject content and scope of application
Petroleum and Natural Gas Industry Standard of the People's Republic of China Viscosity enhancer for drilling fluid 80A51
SY/T 5661-95
Replaces SY 566I-93
This standard specifies the quality indicators, test methods, inspection rules, and packaging, transportation, storage, etc. of viscosity enhancer 80A51 for drilling fluid.
This standard applies to drilling fluid thickener 80A51.2 Reference standards
GB1632-79 Test method for viscosity of synthetic resin dilute solution at room temperatureSY/T 5621--93 Drilling fluid test procedureSY7 T 5677-93
3 Technical requirements
Filter paper for drilling fluid
Drilling fluid thickener 80A51 should meet the technical indicators specified in Table 1 and Table 2 Table 1 Physical and chemical performance indicators
Specific viscosity, αl/
Water content, %
Fineness [0.9mm sieve hole residue), %
Add
03% 80A51 to base slurry
tt|| Test method
4.1. Reagents and materials
a. Sodium nitrate:
120℃ hot rolling 161
b. Anhydrous sodium carbonate: chemically pure
Table 2 Drilling fluid performance indicators
Apparent viscosity
c. Bentonite: Calcium bentonite for drilling fluid test; approved by China National Petroleum Corporation on May 9, 1995. Plastic viscosity
mPn* s
White or slightly yellow free-flowing powder
Dynamic shear force
Filtration loss
1995-11-01 implementation
SY/ T 5661-95
d, filter paper: in line with the performance indicators specified in SYT5677 4.2 Instruments and blood
a. Standard sieve: sieve hole 0.9mm;
b, analytical balance: sensitivity 0.1mg;
c. Flat drying box: temperature control sensitivity = 2℃; d, dryer: built-in silica gel desiccant
e. Weighing bottle: @60× 30mm:
f. Stoppered measuring cylinder: 10mls
g: Ubbelohde capillary viscometer: 40.55 or 40.57 type;h. Super constant temperature water bath: control sensitivity ±0.5℃;i Thermometer: 0～50℃, graduation value is 0.1℃;i Glass sand core funnel: GI type:
k Rotational viscometer: Fann5A type or similar productsI. High-speed agitator: GJ-1 type or similar products;m. Drilling fluid filtration loss meter: ZNS2 type or similar products;n Agitator: JJ--4 type or similar products;
0. Roller furnace: GH-Ⅱ type or similar products:4.3 Physical and chemical performance test
4.3.1 Appearance
Put the sample into a 10ml stoppered measuring cylinder to 1/2~2/3 of the volume of the measuring cylinder. Visually observe the product in a bright place and it will appear white or slightly yellow. Then tilt the measuring cylinder 45° to allow the sample to flow. 4.3.2 Determination of moisture content
43.2.1 Place 3 to 4 g (accurate to 0.01 g) of the sample in a dried, weighed weighing bottle, place it in a drying oven at 105±2℃ for 4 hours, then take it out: immediately place it in a dryer to cool, and weigh it after 30 minutes. 4.3.2.2 Calculate the moisture content according to formula (1):
m,m2 × 100
Where: W
Moisture content, %:
Mass of the sample and weighing bottle, g:
Mass of the sample and weighing bottle after drying, g
Mass of the weighing bottle, g.
4.3.3 Determination of fineness
4.3.3.1 Weigh 20 g (accurate to 0.1 g) of a sample dried at 105±2℃ for 4 h in a standard sieve with a mesh size of 0.91 m and vibrate until no more sample falls off. Pour out the residue and weigh it. 4.3.3.2 Calculate the fineness according to formula (2):
m4×100
Where: 5
fineness, %;
mass of sample, g
ml4mass of residue on sieve, gbZxz.net
4.3.4 Determination of intrinsic viscosity
4.3.4.1 Preparation of sample
SY/ T 5661 -95
Use wax paper to weigh 0.02-0.04g (accurate to 0.0001) of sample accurately by reduction method, place it in a 1001L volumetric flask, add about 45ml of water to dissolve it. Then use a pipette to transfer 50ml of 21mol/1 sodium nitrate solution into the volumetric flask: dilute to the mark with distilled water: shake well, filter with a dry G1 glass funnel, and the filtrate is the sample solution. 4.3.4.2 Determination steps
According to the steps for determining viscosity in GB1632, connect latex tubes to tubes 2 and 3 of the viscometer, fix the viscometer vertically in a constant leak water incubator, with the water surface 2cm higher than the D ball: add about 10nml of the solvent (or solution) to be tested: through tube 1: keep the temperature constant for 10min. When the bubbles disappear, close the latex tube of tube 3: use a 50 or 20ml syringe to slowly draw the wave body into the C ball through the latex tube of tube 2, and stop pumping when the liquid rises to half of the D ball: remove the syringe and release the latex tube of tube 3 to let the liquid fall freely: when the liquid drops to the scale line H, quickly start the stopwatch, and when it reaches the scale line m, stop the stopwatch and record the time: the instant of starting and stopping the stopwatch should be when the lowest point of the meniscus is tangent to the scale line: when observing, the scale line should be overlapped. Repeat the measurement once: the difference between the flow time each time should not exceed 0.2, take the arithmetic mean, and measure the intrinsic viscosity of the solution at 30±0.1℃. 4.3.4.3 Calculate the intrinsic viscosity according to formula (3), (4), (5): 3
H,= h,
Where: r---relative viscosity;
7sp——specific viscosity;
[n]-intrinsic viscosity, dl/g;
G—concentration of sample solution, g/100m
t—solvent outflow time: s
solution outflow time: S.
4.4 Drilling fluid performance test
4.4.1 Base slurry preparation
[2(np Iinn,) 12
Put 400ml of distilled water in a cup, add 0.96g of anhydrous sodium carbonate and 16g of calcium bentonite for drilling fluid test. Stir with a high-speed stirrer for 20min, close and cure at 25=3℃ for 24h, stir at high speed for 5min, and then measure the base slurry performance according to the provisions of SY/T5621.
4.4.2 Normal temperature performance measurement
Add 1.2g of sample to the base slurry, stir with an electric stirrer for 4h, close and cure at 253℃ for 24h, stir at high speed for 5min. Determine the apparent viscosity, plastic viscosity, dynamic shear force and filtration loss according to the provisions of SY/T5621. 4.4.3 High temperature performance test
Add 1.2g sample to the base slurry: stir with an electric stirrer for 4h, then keep in a closed place at 25±3℃ for 24h, stir at high speed for 5min. Then put it in a roller furnace. After rolling at 120℃ for 16h: take out the sample and put it to room temperature, stir at high speed for 5min, and measure its apparent viscosity, plastic viscosity, dynamic shear force and filtration loss according to the provisions of SY/T5621. 4.4.4 Experimental report
The experimental report form is attached as Appendix A (supplement). 5 Inspection rules
SY/T 5661--95
5.1 The manufacturer shall inspect the product according to the standard and the product inspection form shall be attached before it can be issued! 5.2 When sampling, a sampler shall be used. According to the height, shape and number of the pile effect, sampling points shall be arranged at the working, middle and lower parts of each surface. Each batch shall not be less than 10 pieces, and each bag shall be sampled for about 250g. After merging and mixing, it shall be divided into two parts by quartering method. Two parts, each of which is about 150g, shall be put into clean and dry glass bottles and sealed. Labels shall be marked with: product name, manufacturer, batch number, sampler, etc. One bottle shall be analyzed, and one bottle shall be kept for re-inspection.
Sampling and acceptance work shall be completed within the period specified in the contract signed by the supply and demand parties. When the product does not meet the requirements of Table 1 and Table 2, the demand party shall submit a report to the supplier within the period specified in the contract. 5.4
Both the supply and demand parties may request re-inspection within 10 days after receiving the test report. 5.5 When the supply and demand parties cannot reach a consensus, an arbitration unit shall be issued for inspection: the arbitration conclusion shall be who. 6 Marking, packaging, storage and transportation, quality inspection form 6.1. The outer packaging should be printed with obvious signs such as product name, net weight, manufacturer, and moisture-proof. The product certificate should be placed between the inner and outer packaging, indicating: product name, batch number, production date, etc. 6.2 The product packaging is a composite plastic woven bag, and the inner packaging is a plastic film bag, which is tightly sealed. The net weight of each bag is 25kg, and the allowable error is 0.25kg, but the total weight of each batch must be guaranteed. 6.3 This product should be stored in a cool and dry place, and should be protected from moisture, heat and packaging damage during storage and transportation. 6.4 When each batch of products is sent to the user unit, a product quality inspection form should be attached. Its format is shown in Appendix B (Supplement). Entrusting unit:
Sample number:
Manufacturer name:
Sampling date:
Intrinsic viscosity, small/
Water content, %
Fineness (0.9mm sieve hole residue), %
Apparent viscosity: mPa·s
Plastic viscosity, mPa·s
Dynamic shear force, Pa
Filtration loss, ml
SY/ T 5661
Appendix A
Test report form of 80A51 viscosifier for drilling fluid (supplement)
Test report form of 80A51 viscosifier for drilling fluid Report number:
Sample collection date:
Test period:
Base slurry requirements
26～ 30
Sampler:
Physical and chemical performance indicators
Indicator requirements
White or slightly yellow free-flowing powder
Base slurry and drilling fluid performance indicators
Drilling fluid
Normal temperature requirements
Drilling fluid
High temperature requirements
Analyst:
Year/Month/Date
Sending unit:
Shan factory batch number:
Additional instructions:
SY/ T 566195
Appendix B
Format of quality inspection sheet of 80A51 viscosifier for drilling fluid (supplement)
Quality inspection sheet of 80A51 viscosifier for drilling fluid
Unit number:
Bag (t)
Transportation method:
Manufacturer name:
Intrinsic viscosity, dl/number
Water content, %
Drilling fluid properties
Apparent viscosity, mFa·s
Plastic viscosity,
mPa' s
This standard is proposed and managed by the Petroleum Drilling Engineering Professional Standardization Committee. This standard was drafted by the Institute of Petroleum Chemistry No. 4 of the Petroleum Exploration and Development Research Institute. The main drafter of this standard is Chen Zhenzhen.
Fineness (0.9nm sieve hole excess!, %
Dynamic shear force, Pa
Inspector:
Filtration loss, ml
Year, month, day
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