Suspension for thickening water media

专利摘要:
The invention relates to the preparation of suspensions of water-soluble polymers, which can be used as thickeners for aqueous media, in particular, in tertiary oil production. The purpose of the invention is to increase the concentration of the suspension without chewing it during storage, while simplifying its preparation. The suspension contains 2.9-53.2% by weight of a water-soluble polymer (microbial papaccharide, a copolymer of acrylamide with acrylic acid, sodium alginate, guar gum or carboxymethylcellulose), 42-50% by weight: surfactant g HLB 11.5-15.5 and water - up to 100%. Suspensions do not thicken within two months at 20-25 ° C. Filterability of a solution obtained from a suspension does not change 20 hours after its preparation. Suspensions are prepared by mixing the components with stirring for a few minutes. 6 tab. WITH
公开号:SU1382403A3
申请号:SU833655776
申请日:1983-10-14
公开日:1988-03-15
发明作者:Пенье Мишель；Рено Клод
申请人:Рон-Пуленк Спесьялитэ Шимик (Фирма)；
IPC主号:

专利说明:

00 CX)
Yu
The invention relates to the preparation of suspensions of water-soluble polymers that can be used as thickeners for aqueous media, in particular in tertiary oil production.
The purpose of the invention is to increase the concentration of the suspension without gelling it during storage while simplifying its preparation.
Example I. Suspensions based on Xajithane resin of various surfactants are prepared by mixing the components with stirring for a few minutes.
The Xanthane resin used is manufactured by RON-PULENK under the trademark Rodopol 23 (a microbial polysaccharide). Particle size:
 200 mm -77.5%
Between 200-250 mm14%
 250 mm8,5%
The characteristics of the used
surfactants:
Nonylphenol 9 05: nonylphenol condensate with 9 moles of ethylene oxide (Cemul-SOL NP9 trademark), HLB 12.8
octylphenol condensate with 16 moles of ethylene oxide (trade mark Cemul SOL OR 16), 15.5.
Alfol 12-14 9 OE: a mixture of linear alcohols containing 12 to 14 carbon atoms, condensed with 9 moles of ethylene oxide (trade mark Cemul SOL LA 90),,
HLB 13.5.
OXO alcohols, ethylene oxide and propylene oxide condensate with alcohols 0X0 (Cemul-SOL IM 53),. HLB 13.0.
Nonylphenol 9 potassium phosphate
salt of phosphate monoacid nonylphenol, condensed with 9 mol of ethylene oxide, containing -. 20% water (CelaOctylphenol 16 OE
five
0
five
0
five
0 5
0
five
NOL BS19), HLB 13.
The composition of the suspensions, the results of measuring the viscosity and the stability of the suspensions are given in Table 1. Suspensions 1 and 2 are given for comparison.
Note 2. Use is made of Xanthale resin (Rodopol 23) as a polymer and polyoxy-ethylene-containing nonylphenol (Cemulsol No. 9) as a surfactant with HLB 12.8. The polymer concentration and the water content of the slurry are changed.
The results of viscosity measurements are shown in Table 2.
Example 3: A copolymer of acrylic acid and acrylamide (Flocodil AD 37), having a molecular weight of 6-8 U, is used.
This copolymer has the following
grading.
Particle size: 500 mm45%
400-500 mm 15%
250-400 mm 40%
Characteristics of used surface-active substances: Copra amine 20 OU: - condensed copra amine with 20 mol of ethylene oxide, HLB 11.5.
UYIN copra 1, OE: condensed with 10 mol of ethylene oxide, HLB 11,5. Nonylphenol 9 OU: (Zemulsol NP 9), HLB 12,8.
The results are shown in table 3. Suspensions 1 and 2 are given for comparison.
PRI me R 4. Susrenzia was prepared using the following water-soluble polymers: sodium alginate; gum gyap; carboxymethylcellulose.
As a surfactant, use is made of ethylene oxide and propylene oxide condensate on alcohol 0X0 (Cemulsol FM 53), HLB 13.0.
The compositions and viscosity values of the suspensions are listed in Table 4.
PRI me R 5. Use compo.
Position containing, wt%: Resin Xanthane47
Surfactant (Cemulsol FM53) 42, HLB 13.0 Water11 The mixture is moved with speed
800 rpm for solution
with a concentration of 1000 ppm resin in water. The filterability test is carried out 20 hours after the preparation of the solution, passing the solution through a filter with millipores of 8 minutes under a relative pressure of 1 bar. The time required to obtain 300 ml of filtrate is 215 seconds. The comparison is carried out with a solution containing 1000 ppm prepared from a Halybape gum powder under similar conditions. The time required to obtain 300 ml of filtrate is 215 seconds. From the test, it is shown that the suspension according to the invention does not change the filterability of the solution, which is an essential condition for its use for the tertiary recovery of oil.
EXAMPLE 6 Suspension 5 and 7 of Example 1 was prepared. The heat resistance, the viscosity of the diluted solutions and the surface tension of the diluted solutions were measured relative to a solution of the same concentration prepared from Xanthane resin without a surfactant. Heat resistance. Suspensions subject to those
12 days thermally 1m cycles for 16 hours at 20 ° C and for 8 hours at 60 ° C,
After 12 days of testing, the form of the suspensions remains almost unchanged. Viscosity Diluted solutions are prepared, containing 0.25% and 0.5% by weight of Xanthane resin by moving with a paddle stirrer rotating at 200 rpm, and the time is sufficient to achieve complete dissolution. using a Brookfield viscometer, needle number 2, 30 rpm 25 ° C (Table 5).
) 0 t5 0
five
0
five
0
Surface tension. The surface tension measurements are carried out using an automatic solution tensiometer with 1000 mil.d. Resins in suspension x 5 and 7 in the presence of 5 n 50 g / l sodium chloride compared with a resin without a surfactant (Table 6).
The suspensions given in the examples are stored in an airtight container for 2 months. without precipitation, not thickening at 20-25 ° C.

权利要求:
Claims (1)
[1]
Invention Formula
A suspension for thickening aqueous media containing a water soluble polymer, a surface-active agent and water, characterized in that, in order to increase the concentration of the suspension without gelling it during storage while simplifying its preparation, it used from the group including polysaccharide of microbial origin, acrylamide-acrylic acid copolymer, sodium aliginate, guar gum and carboxymethylcellulose, as a surfactant in orast- liopn ith surfactant, HLB inekschy C, 5-15,5, at present the following component ratio, wt.%: Water-soluble
28.9-53.2
42-50 Else
and the mass ratio of water-soluble polymer: surface-active agent is 0.6 - 1.25: 1.
Table I
Octylphenol 16 Of - Alfol 12-14 9 Of Alcohol 0X0 0, OR
50
44.61
43
monilphenolO
l / NPA. s8000 ness
About 19,000
at
Ras Khor, foliation
Delamination layer
9.1 {6200
Choir, Choir,
Brookfield viscosity,,
Note. Known suspensions of US Pat. No. 1,417,107 contain
more than 30 wt.X water, which in a p ispachaaa and snnno-iabu ayuofas polymers leads to a viscosity of the viscosity and contributes to the gel dispersion
table 2
Continuation of table 1

.1110,78 II
9500 4600
44.44 11.12 13700
Choir,
Choir, Choir, Choir,
Choir Choir Choir Choir,

43
43.5
50

54.9-55 5-55.2 56.5-56.0 0-56.0 32.4-32.3 3-32.3 31.8-31.8 8-31.9 32.2- 32.4 4-32.2. 32.0-32.2 2-32.2
Table 4
45.15
50
11.856200
55900
42
eight
7100
Table5
Table 6

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法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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FR8213318A|FR2531093B1|1982-07-30|1982-07-30|PUMPABLE CONCENTRATED SUSPENSIONS OF WATER-SOLUBLE POLYMERS|

---