Some standard content:
CS13,060.30
Registration No.: 1143
Petroleum and Natural Gas Industry Standard of the People's Republic of China SY T 0600-.-1997
Prediction of scaling tendency in oil-field water
Predication of scaling tendency in oil-field water1997: 12-31 Issued
China National Petroleum Corporation
1998-0-1 implemented
SY /T 0G00-1997
Cited by
Methods can be used to
Test data for
Prediction of scaling trend...
(Group list of standards)
Shantou old water pollution index subdivision complete
SYfT(K00—1997
This environmental standard store vibration according to China National Natural Gas Corporation (96) Zhong Du Control Monitoring No. 52 - Guan Xiao Printing: Several six works have God people singing home standard. Industry standard revision project day plan of the general arrangement such as the scheduled. Abbreviation of the enterprise giant family number of technical supervision and insurance ten pressure standard information center and China National Petroleum Corporation Public information research institute search wide related text version materials: in the training system column, then Daqing and other oil L through the deep research: equity capital product data, in the production of the standard analysis test supervision base example upper end company this standard
this standard full of China Bank of oil and gas total public planning safety planning institute proposed and, this standard single unit: new city exchange law its purple design planning institute international standard seven card notice Zhong Zhi English new blue will be half Zhang Yongsheng Zhao Bo Chen Lu 1 Fan Gu
People's Republic of China Petroleum Weather Industry Standard Oilfield Water Scaling Trend Prediction
Predicatkn of rcaHng teudency In all-led waterSYT060—1997
This standard specifies the definition of oil field water content: method summary, test data determination and prediction of oil field water content trend
This standard is applicable to the management of produced water in oil fields, water injection, oil and gas inspection system, and the measurement of scale film potential in pool water. 2 Reference standards
The clauses contained in the following standards constitute the clauses of this standard through their use in this standard. When this standard is published, the versions shown are valid. All standards will be revised. All parties using this standard should explore the possibility of using the latest version of the following standards. GB/T601—1988 Preparation of standard solution for chemical reagent filtration analysis (volume analysis) GB/T12997 1991 Technical regulations for design of water quality sampling scheme GR/T12998—1999 Technical guidance for water quality sampling Y/T5329—94 Determination of water quality index and analysis method for oil-rich water SY552392 Analysis method for water
DZ/T0064.39—93 Determination of silver by flame emission spectrometry 3 Definitions
This standard adopts the following definitions.
3.4 Soil-rich water
The general term for surface water, groundwater and underground clean water 3.2 Scalc
Soluble and soluble substances in water are affected by temperature and pressure changes, and deposited on the metal surface. Sometimes it also contains corrosion products and other impurities.
4 Method Summary
The causes of scale formation are very complex, and are closely related to water quality and environmental factors. This instrument provides a general prediction of scale formation in water.
The most common scale formations are carbonates and salts of silver. The recommended method is to test the relevant ion content, pH value, water temperature and other parameters in the water, calculate using corresponding experience or theoretical formulas, and then make a judgment. When the results have been obtained, the composition shall be analyzed in detail according to Appendix A (standard records): the cause of the scale break.
5 Determination of test data
5.1 Determination of water temperature
In principle, the water temperature shall be determined by using the temperature measuring points already built in the Shanri Water Treatment Station, or by using a 100° glass-silver thermometer (approved by China National Petroleum Corporation on December 31, 1997, and implemented on July 01, 1948). The test error shall not exceed 1.52. Collection of water samples shall be carried out in accordance with the relevant provisions of GB/T12997, GB/T12998 and SY5523. The H value, Ca, Mg+, Ba*, Sr, Nat+K-, 6 Prediction of scaling trend 6.1 Judging the scaling trend of water quality When judging the scaling trend of water quality from a single source or water phases from different sources, the concentration of the ions and the size of the theoretical solubility constant should be considered to predict the scaling trend. 6.2 Prediction of scaling trend of carbon dioxide 6.2.1 Saturation index data a) Calculate the scaling index using the following formula: SI = pH - K - pCa - pAIK PAIK = 1 [CO,-] + [HCO, ]
In the formula, S[——saturation index;
PH value of water sample:
correction coefficient, the relationship curve between the intensity of the two white particles and the water temperature is obtained, as shown in Figure 1;.
1.ir.c2.2.3.23.64.04.
week 1 small change: relationship with the three strengths of the commercial pCa - negative logarithm of CaT concentration (mo1/[); total reduction (mo1/[logarithm;
commercial industrial concentration
separation, ugly ol/L:
separation value
h) judgment:
S>, there is a tendency to scale:
SI=0, critical state;
S[0, light sound potential
6.2.2 Stable band number method
a) Tariff index is calculated as follows:
SYT06001997
SAI = 2(K +Ka +nAIK) -pH
output: SA1-
running index.
K: calculation interval of pCa, PAIK 6.2.1
b) Judgment:
SAI26, no Nafion trend;
SAIc6, scaling trend:
SAI<5, serious scaling,
61.3 Determination of carbon dioxide in the feed-through: Use the method of corrosive carbon dioxide determination to judge the scaling potential, and proceed to 5.9 in 5Y/T5329-4. 0.3 Calcium sulfate scaling trend prediction
) The scaling trend of calcium sulfate is calculated according to the following formula: S = 10mV X\ +4K -X)
Where: s--caS)a scaling trend prediction, mmol/L: K
The relationship curve of the coefficient of scaling, the concentration of water and the concentration of water is shown in the figure, such as the whole 2; The concentration difference of Ca3-so-: mml/ L
.1.it.
1arx*x
Figure 2 Relationship between different ion concentrations and temperature under correction coefficient Determine [Ca] and [5 pieces] in the water, and then calculate the actual content of (aS0 in the water (, and compare it with (4
b) Screening:
S(. has a scaling trend;
S C critical state:
S>G has no scaling trend,
6.4 Prediction of scaling of acid-deficient steel
SY/T (600—1997
Research on scaling trend of acid-deficient steel is carried out according to SY/T532994 5.10 6.5 Prediction of scaling of silver sulfate
a) Prediction of scaling trend of strontium acetate is calculated by the following formula: Q-[Sr+ [so\-
Wherein: 0-
Sr- and 50- (unit is mg/L) total product
h) Judgment:
／1.0. Station scaling trend;
Industry/K,=1.0, critical state;
0/k≤1.0, no step film potential,
Wherein, K, is the false excitation product, at 25℃, the value is 2.8×10-7 reported||tt ||7.1 Report the following information:
a) Sample date and sampling location
b) Test date:
Pilot personnel;
a) Water content, pH value, Ca+, Mg, Bat, Sr, Na*+K, SO2, CO}, HCOi.CI, etc. Test information:
"Test results";
gl Test conclusion.
72Test results are recorded in the table.
Table 1 Scaling potential test data record table (format adopted for the first phase of the second phase).
Test three types
Water volume
Calculation
Conclusion results
Test monitoring
Selection point
Test personnel
1 Scope
SY /T 0600-1997
(Appendix to the standard)
Determination of fouling components in oilfield water
AI This standard specifies the method for determining the fouling components of oilfield water treatment products. A1.2 This standard specifies the method for determining the fouling components of oilfield water treatment products. 2 Sampling
A2.1 Sampling of fouling products
In order to prevent the sample from being affected by the outside world, the sample should be taken as soon as possible after sampling. The sample volume should not be less than 1%, and should be collected in the well prepared in advance. Put the material in the bag, tie the bag tightly, write down the sampling point, signature and date, record the sampling time, temperature and other related items: A2.2 Sample processing || tt || The samples for analysis need to be dried. After the samples are removed from the bag and cooled, weigh them on a balance for one day. Use a pneumatic scale to keep the weight constant. Note the content of the metering scale. After all the samples are fully collected, put them into an empty oven, keep the temperature constant at 80 °C, and put them into the store. All of them have passed 80 °C in the research body. month, put it in a weighing bottle, put it in a dryer for preparation, A3 Materials and Equipment
A3.1 Wipe
a) Salt is relatively pure, analyze it:
b) You have not been analyzed, analyze it:
c) After being exposed to acid, analyze it:
Nitrogen is destroyed, analytically pure,
A3.1 Liquid bzxz.net
a) Emulsified solution: 0.025mol/L:
Acid solution: 2% (valence/), [0% (m/|tt||Yayou liquid: 0.05mol/L
Potassium chloride solution: 30% (m/m)
Water: (+1;
Chlorine solution: 2% (m/h
Hydrogen chloride solution: 20% (m/m)
Hydrochloric acid solution: (1-1)
1) Chlorine solution: 5% (m/ml:
jSodium carbonate solution: 0.5% (m/m). 1%nt/m). 10% (m/m): k) Sodium carbonate solution: 5% (m/ m)
I) Nitric acid solution: (1+IF
m) Zinc iodide solution: 20% (m/m).
A3.1 Preparation
SX[T0600—1997
A3.3.1 Sodium iodide standard solution: 0.0200mol/L, preparation and calibration according to GB/T60113.3.2 Potassium peroxide standard solution: 0.0100mol/L, preparation and calibration according to GB/T601233.3 Wire standard solution, 0.0250mol]/L, prepare and calibrate according to GB/T601, A3.3.4EJ3TA standard solution: 1025(m1/[. Prepare and calibrate according to GB/T601 A3.3.5 Each chemical chain chlorination energy analyzer flushing solution: pH=state, weigh 27g ammonium chloride and add 197mL of hydrogen peroxide. A3.4 indicator: salicylic acid, steel indicator: 100g/L: a
medium indicator: 1e/L of alcohol filter; reagent indicator. Weigh 0.5g potassium hydroxide reagent and add it to the agate. In the dryer, add starch indicator: 1g/L; lead black indicator: 5g/L ethanolamine (I+1) solution; quick indicator: 2/L ethyl acetate solution; A3.5 Materials and Equipment: 250, 500, 1000; transfer volume: 1, 5, 10, 25, 50, 100mA; one-corner bottle: 2 50,50mL
Beaker: S02Mml
Bump bottle: 250.5mL:
Funnel: 0111
Color ball burette: 50mL, A type;
Blue back line acid elimination tube: 25,501mL, A grade: i)
Brown acid titration tube: 25ml., A grade: Dingnengpai: 110mm, 23 type:
Precision test paper pH range 0 .5~5
Porcelain vortex: 20mL;
Electric furnace: (mow
Nitrogen head;
Box resistor 5: Control temperature +207
44 Determination of ignition loss
44.1 Method summary
According to the difference after ignition, the ignition loss is calculated. The ignition loss is carbon monoxide. Moisture (cement and adsorbed water), bacteria, oil and other easily expanded substances||tt| |A4.2 Analysis Steps
Weigh 0.7000~5000g of sample (0.5000g), calcine at 95℃ for 12min in a hood at 950℃-20℃, take out when the temperature drops below 45%℃, and cool in a desiccator for 30min. Then, calculate the content of susceptibility to calcination in the sample, %;
Stir and vortex before calcination.
SYJT 6H-197
After burning to 950℃, the sample weighs 100 grams,
A5 Combined determination of sulfide and carbonate
A5.1 Method summary
AS.1.1 Determination of sulfide by one-stage display method
The sulfide reacts with hydrochloric acid to form sulfide oxide: the sulfide oxide reacts with the amount of iodine: the remaining sulfide is dissolved in standard sodium thiosulfate and the oxygen content in the sample is calculated based on the reaction of the sodium thiosulfate solution. The reaction is as follows: 52- +211l +11,$ + +201
1H2HI+
I,+2Na:5.0t→2NaI+Na,S+0
A5.12 Determination of Hydrocarbon Dioxide—Neutralize the carbon dioxide in the sample and react with the salt to produce carbon dioxide. The carbon dioxide reacts quantitatively with hydrogen. The sodium hydroxide is titrated with the sodium hydroxide. According to the amount of sodium hydroxide consumed, the carbon dioxide content is calculated as follows: CO+2HC1- -2C1\+H,O+CO, t
CO,+Ba(OH),→BaCO, ↓ +H.0
Ba(0H+H,CO4-RaCO.+-2H,0
A5.2 Determination device
a) Safety bottle:
b) Gas washing bottle: filled with alkaline pyrolytic acid (200mL 30% potassium hydroxide solution plus 15g pyrolytic acid), absorbs oxygen in the air;
d) Hydrogen sulfide absorption bottle [filled with 20% acid solution 90m2] Carbon dioxide absorber (filled with 50ml, (.025mo]/L) Add three drops of 0.1% hydrogen sulfide solution to the filter). A5.3 Device for determination of mineral substances and carbonates (as shown in Figure A1) N
- Install two bottles: 2- gas source, filled with oxygen and oxygen generated by heat-generated acid to absorb the entrained gas; 3- reaction source: 4- replacement chemical absorption bottle; 5- standard mass carbon dioxide and carbonate determination device
A5.4 Analysis steps
A5.4.1 Place a precisely calibrated 0.300-0.500% sample in a gas flask, add 50mL of distilled water, and connect the reaction flask and the hydrogen peroxide absorption bottle as shown in Figure A1. First, pass air through the system to remove the gas for about 2 minutes, clamp the leather tube at the outlet of the gas washing bottle, connect the carbon dioxide electrode to the system, and collect the condensate into the air inlet of the reaction bottle. Use a suction bulb to suck out the air at the end of the device. At the same time, slowly add SYT 0604H-197
25mT from the two funnels at a rate of 1:1. Use a torch to extinguish the affected air inlet for 11 seconds, then remove the funnel and connect the air delivery pipe of the reaction bottle to the outlet of the gas washing bottle. Heat the reaction bottle with a wine lamp, and after 3m, remove the air intake clip, adjust the air flow to an appropriate level with a transformer, and add excess iodine solution to the absorption bottle, and then add 1:5mL of sodium chloride from the absorption bottle, and add 1:1% sodium chloride solution to the absorption bottle, and then add 1mL of standard acid to the absorption bottle, and then add 1:1% sodium chloride solution ...3 After removing the reaction bottle and the hydrogen monoxide absorption bottle, connect the carbon monoxide absorber to the collector. When the solvent in the carrier is filtered out in a serpentine ring, use oxalic acid standard liquid to titrate the BOH in the collector. When the color is within 30%, determine the end point. Note the energy consumption of the standard film. The minimum value is determined by A544: the sample is not confirmed. The rest are measured according to A5.4.1~A5.4.3. A5.4.5i
_ (V, -- m)× 161/3 ×c× 10 o
2 The content of 5 in the sample is:
standard liquid medicine machine! , L: volume of standard oxalic acid solution, mL: total sodium sulfide standard droplet concentration, mDl/L-1. Sample
(, -×44.01 ××10
--the content of complex carbon in the sample, %
Blank oxalic acid standard solution, L: sample consumption of oxalic acid standard filter, mL: gram acid standard dilute concentration, mol/Lr
Sample quality, 8
45.5 Total items
A5.5.1 A blank test should be performed on each batch of samples. A5.5.2 Before the determination, a detailed inspection should be carried out. The entire system should be within the limit of × 100
455.3 Make a sample: Put the inflation gas sticker in the inlet to prevent air from entering. 45.5.4 If the sample has no sulfur or H content less than 5%, then CO can be analyzed by ignition reduction method A6 Determination of non-degradable substances
A6.1 Summary of the method
After the sample is subjected to hot acid analysis: the organic matter part is determined by the main method, A6.2 Analysis steps
No. Analysis test S- less than 5% The determination of alcohol-insoluble matter can be carried out by the method of A6.2.1. If the sample size is greater than 5%, the determination of acid-insoluble matter can be carried out by the method of A6.2.2: A62.1 Place the sample after the reduction in volume into a 1m3 evaporator, make a slurry with a small amount of distilled water, slowly add 10ml hydrochloric acid, and evaporate on a sandy platform. Add at least 10ml hydrochloric acid or 50ml distilled water, bring to a boil, cool slightly, and stir thoroughly to evaporate. 06001997
The whole is filtered through a fixed plate into a 250mL sample bottle, washed with 2% hot acid for 3 to 5 times, and washed with hot distilled water until the solution does not contain fluoride ions. Then dilute the bottle to the scale with distilled water. Determine the iron, calcium, and calcium content with the filter paper. Move the filter paper into a pre-set vortex tower, ash it on a low fire on an electric furnace, and calcine it at 52[℃ until it has a weight. After the combined determination of aldehydes and carbonates, put the aldehyde insoluble matter on the paper into the constant weight porcelain, calculate the constant weight after calcination at 950t=20℃.
X=AmB ×1m
Where: X
acid insoluble content, %:
mass,
B-parameter, 9
two-sample mass, g.
A7 Determination of iron ion
47.13 method
In pH=2-2.5, Fe can be quantitatively complexed with EDTA to form a very stable complex. Sodium iodide can also form a red complex with Fe\, but it is not as stable as the former. When EDTA is used to titrate, EDTA can obtain Fe from the indicator complex and form a stable complex. When the same substance is titrated, all Fe+ is complexed with EITA, and the solution color changes to white or bright color.
When the determination of He\ is fully determined, a large amount of Fe is added to the solution to make F E~ is oxidized to Fe-, and titrated according to the method for determining Fe, and the content of Fc and Fc~ is separated. A7.2 Analysis Step: Use a wave tube to absorb 1~50m of the filtered acid-free product [or the concentrated sulfide and carbonate that has been processed] in a small male bottle, add 1:1 hydrogen water to make H=2~2.5, add 4~6 drops of [0% sodium sulfonate and water] to make the sea liquid crystalline, and then burn it with EDTA Standard solution is fixed until colorless, record the volume of FTTA consumed V. Add about 1.2 g of EDTA to the fixed solution, keep stirring for s. Under the condition of ~4, continue to cast with 13TA solution until it is colorless or bright yellow, record the volume of EDTA consumed
A7.3 Calculate
eV, × 55.85 × 10 ~:
Where: X
eV, × 55.85 × 10 -3
m×350
Te content in sample, %;
Fe content in test sample, %
Benzene content of EDTA standard solution, mol/L:
EDTA consumption volume when determining F-, mL:
Fe ELTA consumption volume when determining: mL;
Sample volume during determination, %.Use EDTA standard solution to determine until colorless, record the volume of FTTA consumed. In the determined solution, add about 1.2 g of EDTA solution over a period of time, keep stirring, and continue to cast with 13TA solution under the condition of 4% to colorless or bright yellow, record the volume of EDTA consumed.
A7.3 Calculate
eV, × 55.85 × 10 -3:
Wherein: X
eV, × 55.85 × 10 -3
m×350
Te content in sample, %;
Fe content in test sample, %
Benzene density of EDTA standard solution, mol/L:
Volume of EDTA consumed in determining F-3, mL:
Volume of Fe-3 consumed in determining F-3: mL;
Sample volume during determination, %.Use EDTA standard solution to determine until colorless, record the volume of FTTA consumed. In the determined solution, add about 1.2 g of EDTA solution over a period of time, keep stirring, and continue to cast with 13TA solution under the condition of 4% to colorless or bright yellow, record the volume of EDTA consumed.
A7.3 Calculate
eV, × 55.85 × 10 -3:
Wherein: X
eV, × 55.85 × 10 -3
m×350
Te content in sample, %;
Fe content in test sample, %
Benzene density of EDTA standard solution, mol/L:
Volume of EDTA consumed in determining F-3, mL:
Volume of Fe-3 consumed in determining F-3: mL;
Sample volume during determination, %.
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