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Petroleum and Natural Gas Industry Standard of the People's Republic of China SY5403-91
Hollow Microspheres for Oil Well Cement
Published on January 15, 1992
Ministry of Energy of the People's Republic of China
Implemented on July 1, 1992
Subject Content and Scope of Application
Petroleum and Natural Gas Industry Standard of the People's Republic of China Hollow Microspheres for Oil Well Cement
This standard specifies the quality indicators, test methods, acceptance rules, etc. of hollow microspheres for oil well cement. The standard is applicable to the inspection of hollow microspheres for oil well cement. Quality index
Hollow microspheres shall meet the quality indexes specified in the following table: Item
Water content,
Impurity content, %
Volume density, g/cm3
Particle size, % (pore size 234m sieve residue)
Density, g/cma
3 Test method
3.1 Apparatus and materials
Precision balance: sensitivity 0.001gs
b. Pharmaceutical balance, 2000g, sensitivity 2g
c. Pharmaceutical balance, 500g, sensitivity 0.5gsd, oven: 0~～300C±2°C
SY 5403-91
self-colored or light gray particles with washing state
0.60~0.70
density bottle, volume 100cm2 (Gan) volume 250cms (Li)f. Sampling sieve: aperture 234μm (60 months)"g. Beaker, 250mls
h. Distilled water.
3.2 Test procedure
3.2.1 Appearance
Visual observation of the product is white or light gray particles with flow state.3.2.2 Determination of water content
In a beaker, weigh about 20g (accurate to 0.001g) of sample, dry the sample at 105°C±2°C until it is heavy, cool it in a dryer and weigh it with a precision balance. The water content is calculated as follows. Approved by the Ministry of Energy of the People's Republic of China on January 15, 1992 and implemented on July 1, 1992
In the formula: Q water content, absorption
SY5403-91
Q=.m2/ma ×100
m,—mass of beaker, g1
-the sum of the mass of sample and the mass of beaker, g
-the sum of the mass of microbeads after drying and the mass of beaker, mg
3.2.3 Determination of impurity content
Weigh about 20g of sample in a constant-weight beaker using a precision balance. Add about 200ml of distilled water, stir with a glass rod for 1min, then let it stand for 1omin, and use a horn spoon and a small brush to remove impurities floating on the water surface and adhering to the surface. Remove the hollow microbeads on the wall of the beaker. Stir the rinsing with a glass rod, then let it stand for 10 minutes, and use the same method to remove the floating hollow microbeads. Repeat this method (if the water level is too low during the rinsing process, add some distilled water) until all the hollow microbeads floating on the water surface are removed. Slowly remove the floating water. Bake to constant weight at 105°C±2°C, cool in a desiccator, and weigh the mass of the beaker and impurities with a precision balance. The impurity content is calculated according to the following formula. Q- ma -m.. X 100..
m2 --mi
Wherein, Q——impurity content, %
mi—beaker mass,
m2-—the sum of sample mass and beaker mass, g3ms the sum of impurity mass and beaker mass, g. 3.2.4 Determination of bulk density
Fill a Gan density bottle of known mass with the sample, hold the bottle with your right hand, and hit it 10 times with the palm of your left hand. The sample surface will be lower than the bottle mouth. Add some more sample to fill the density bottle again, and use the same method to shake the sample, repeat until the sample surface does not drop. Cover it and weigh it with a precision balance. Bulk density is calculated as follows. Po=mg-m
Wherein, Pa-
Bulk density, g/cm,
ms-—Gann density bottle mass, gs
me—the sum of the sample mass and the density bottle mass, g100-—Gann density bottle volume, 100cm. Note: Under dense accumulation conditions, the mass per unit volume is the bulk density. 3.2.5 Determination of particle size
Weigh 150g of sample, pour it into the sample sieve, shake the sieve by hand for 3 minutes, then weigh the mass of the sieved sample, and the particle size is calculated according to the following formula. m×100.www.bzxz.net
In the formula, R—particle size (sieve residue of 234μm pore size), %—mass of the sieved sample, g.
3,2.6 Determination of density
Use a sieve with a pore size of 140μⅡ (100 mesh) to make a filter plug, and install the filter plug on the neck of the Li density bottle. Draw a red line around the neck of the density bottle. The red line should be drawn above the filter plug. Add distilled water to the density bottle until the water surface is flush with the red line and weigh its mass. Remove the filter plug and pour out the distilled water. Use a pharmaceutical balance to weigh 20g of sample and add it to the density bottle, then add the filter plug. Slowly add distilled water until the water surface is flush with the red line and weigh its mass with a pharmaceutical balance. The density is calculated as follows. 200
rz-mg+20
Where: P. Density of a hollow microbead, g/cm\SY 5403-91
m-——The sum of the mass of the Li density bottle and the steamed stuffing water, g!me—The sum of the mass of the Li density bottle, distilled water and the sample, gsP—Density of distilled water, g/cn'.
3.3 Test error
The arithmetic half-mean of the parallel measurement values of each index for 3 to 5 times is within the following allowable error range: Moisture content +0.01%
Impurity content ±0.2%
Bulk density ±0.05g/cm2
Particle size 0.10%
Density ±0.05g/cm3
4 Acceptance criteria
4.1 The product shall be inspected by the quality inspection department of the manufacturer, and it shall be ensured that all the products leaving the factory meet the standard requirements. Each batch of products leaving the factory shall be accompanied by a product inspection report. See Appendix A (Supplement). 4.2 The manufacturer shall take at least 20 samples per batch with a maximum of 40 tons, and each sample shall be at least 200g, with a total amount of not less than 4800g. After the sample is evenly mixed, it is shrunk into 1200g by quartering and stored in three clean wide-mouth bottles for inspection, re-inspection and arbitration. 4.3 The unit price shall be inspected and accepted according to this standard, and the sampling and acceptance shall be completed within one month from the date of arrival. 4.4 When the supply and demand parties have objections to the product quality, the stored samples shall be sent for arbitration testing, and both parties shall be bound by the results of the arbitration test.
5 Marking, packaging, transportation and storage
5.1 Marking
The outer packaging shall be marked with the product name, batch number, gross weight, net weight, production date, manufacturer name, registered trademark and "moisture-proof" mark. 5.2 Packaging
Lined with plastic bags and covered with nylon woven bags, each net weight is 20kg. 5.3 Transportation
Prevent rain and packaging damage during transportation. 5.4 Storage
This product should be stored in a dry place.
Product name:
Inspection content
Water content, %
Impurity content, %
Bulk density, /cm
Particle size, field
(Sieve residue of 234μm pore size)
Density, g/ems
Additional instructions:
SY 5403--91
Appendix A
Hollow beads for oil well cement
Quality inspection report
(supplement)
No.:
Inspection period:
Inspector:
White or light grey particles with fluidity
D.35-~0.45
0.60~~0.70
This standard is proposed and technically managed by the Technical Committee for Standardization of Petroleum Drilling Engineering. This standard is drafted by the Drilling Technology Research Institute of North China Petroleum Administration Bureau. The main drafter is Zhao Dexi.
Result of the review
This standard continues to be effective after the review in 199, and the review result has been approved by the State Administration of Petroleum and Chemical Industry.
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