SU1263702A1 - Method for preparing powder-like reagent for treating drilling muds - Google Patents

Abstract

The invention relates to the field of drilling wells, in particular to methods for the preparation of reagents (P) based on acrylic polymers used for the treatment of washing liquids (RV). -The goal is to increase the ability of P to reduce water loss while reducing the time spent on cooking P. For this purpose, powdered P is administered in solid dry form in G1G. Solid dry powdered P is prepared with the following ratio of ingredients, wt%: polyacrylamide 35; sodium hydroxide (L 15-55; soda ash 10-50. P disintegrator with rotating rotors is loaded and agitated and ground. The rotational speed of the rotors is taken in the range from 6 10 to 12-10. After that, 1 x E powder P input t in the pancreas. 1 ill., O5 5 tabl. vj о N9

Description

The purpose of the invention is to reduce the time spent on the preparation of the reagent and increase the ability of the reagent to reduce water loss. The invention is as follows. The cyxyto mixture of sodium hydroxide polyacrylamide and soda ash is mixed in a rotary rotor disintegrator at rotor speeds of 6,000-12,000 minutes. Example 1. 1 kg of granulated but;; polyacrylamide, 0.45 kg of sodium hydroxide and 1.45 kg of soda ash, which are taken at natural humidity, are loaded into a disintegrator of the D-73 type (designs of CTB Disintegrator Estonkolkhozstro), having the opposite rotating quadruple blade rotors. Stirring is carried out at a rotor speed of 6 10; 9-10; 12-10 min, respectively (table. 1 1, 1, 1), the resulting reagent is dissolved in 50 l of hot water (50 ° C and stirred for 50-30 min (table 1). A reagent sample is taken (20 ml) and cleaned twice re-precipitation from water to methanol. Then the sample is filtered, dried and the Caidal nitrogen content is determined. Hydro-polyacrylamide degree (table read by formula Hydrolysis degree,% where No. is nitrogen content,%. Example 2.1 kg granulated polyacrylamide, 1, kg sodium hydroxide} and 0.9 kg of soda ash, which is maintained at natural moisture, The stirring is carried out at rotor speeds of 6-10, 9-10 and 1210 minutes, respectively. The resulting product is dissolved in hot water (as in Example 1) and a sample is taken to determine the hydrolysis degree (Table 1). Example 3. 1 kg of granulated polyacrylamide, 158 kg of sodium hydroxide and 0.28 kg of soda ash, which are taken at natural humidity, are loaded into a disintegrator. Stirring is carried out at rotor speeds of 610 and 12-103 minutes, respectively. The resulting reagent is dissolved in hot water and a sample is taken to determine if the degree of hydrolysis is similar to Example 1. Mixing and grinding in a disintegrator is advisable to carry out at a frequency of rotation of rotors in the range of YY - 12-103 minutes. With a smaller number of rotor turns (3 10 10 min), the reagent is heterogeneous and poorly soluble (4, Table 1). At a higher number of revolutions (15-10 minutes), with stirring, a strong heating and sintering of the product occurs (5, Table 1). A comparison of the quality of the reagent in a known manner is carried out according to the results of processing a 5% bentonite suspension. The reagents to be compared are added to the bentonite suspension in the same concentration (0.1% for a dry 100% polymer), have the same initial composition (composition 2, Table 1) and hold the same time in hot water. Comparative parameters of the three types of drilling fluids treated with a known reagent and proposed are given in table. 2,3 and 4, where table. 2 characterizes the effect of reagent concentrations on the parameters of a polymerbentonite thin clay solution (5% clay powder); tab. 3 - normal clay solution (tO% clay powder) and table. 4 - polymer low-temperature resistant flushing fluid (5% clay powder, 12-28% carbamide). These data are also presented graphically. In the drawing, where curves 1, 2 and 3 correspond to the yield, depending on the concentration of the product PAA. type 1 washing liquid (table 2), type 2 (table 3) and type 3 (table 4), respectively. and curves 1 are the same with the addition of the reagent obtained by the proposed method (rotation frequency of the rotors of the disintegrator is 9000 minutes, the ratio of the components of the mixture,%: PAA 35; sodium hydroxide 35; soda ash 30). In the process of research, the clay powder of the Ilsky clay plant was used. In tab. 5 presents data on the effect of a reagent having prohibitive component ratios.

512637024

The invention of the invention and the reduction of water loss while at the same time preparing the powder by reducing the time spent on the direct reagent for processing the washing of the reagent, mixing

liquid fluids, including mixing in a disintegrator with rotated polyacrylamide with hydroxide rotors at a frequency of rotation of sodium and soda ash, no rotors 6000-12000 min, and

characterized in that the components are introduced in solid dry

in order to control the ability of the reagent-form. Comparative characteristics of the proposed n known methods of obtaining reagent

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6 10 50 5 23 Polyacrylaide 35 9-10 70 15 42 Sodium hydroxide 15 50 12-10 90 30 48 Soda ash 610 50 5 Polyacrylamide 35 9-10 70 15 Sodium hydroxide 35 30 12 1090 Soda ash 6 Polnacrylamide 35 Sodium hydroxide 55 10 12-10 90 Soda ash 3 Ingredients 2 15-10 70 Ingredients 2 Ingredients 2 Ingredients 2 Suggested offer 15 Products 15 Produ 15 20 Knownsposo 90 5 12 - 90 15 20 90 30 25 90 180 44 21.5 150,50,16 / 0 , 4 1,025 2212О0,16 / 0,4 1,025 23100,5 0,4 / 0,9 1,025 22121 0,8 / 1,6 1,025 22110,5 0,8 / .1,6 1,025 2 11О0,76 / 1, 44 1,025 24132,5 0,4 / 1,24 1,025 25.131 0.8 / 1.28 1.025 25IIO 1/1, 68 1.025 is homogeneous, there is no dissolution of the liquid and it is not well soluble, the cracked pieces 21234-6 0.32 / 0.44 1 , 03 2010052 L 1.03 35626 0.1 2 / 0.32 1.023 62814 0.16 / 0.36 1.03 012O 0.7 / 1 1.025

Table PAA Clay Powder Carbamide Clay Powder Carbamide Clay Powder Carbamide Clay Powder New Reagent Carbamide Clay Powder New Reagent Carbamide Clay Powder New Reagent Urea

Table 1.04 20 1.06 30 1.05. Not flowing 1.04 19.2 1.06 26.4 1.05 20 28 20 0 / 0.3 -5.6 31 29 1.3 / 2.0 -12 00 11 O 0.02 / 0.24 -5.6 9 5 О 0.08 / 1.26 -4.5

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Claims (1)

SUMMARY OF THE INVENTION A method for preparing a powdered reagent for treating washing liquids, comprising mixing polyacrylamide with sodium hydroxide and soda ash, characterized in that, in order to increase the ability of the reagent to reduce water loss while reducing the time spent on the preparation of the reagent, mixing is carried out in a rotator5 rotating rotors at a rotational speed of 6000-12000 min, and the components are introduced in solid dry form. Comparative characteristics of the proposed and known methods Reagent Production Table room The ratio of the ingredient ^ Often the reagent "us, X and the rotation of the rotors, min Water temperature, FROM Change time, mnn / Power! Technological parameters of a polymerbentonite solution containing 5Xbentonite and 0.15 wt .X hydrolysis reagent ^% _g --------------_ Conv. Drainage Day sns Raft- elm- country house, ny 1/10, nost bone s cm ’/ 30 sucks, X- mg / SI g / cm ’ The proposed method g. Polyacrylamide 35 6 10 ’ fifty 5 23 21.5 fifteen 0.5 0.16 / 0.4 1,025 g. Sodium hydroxide fifteen 9-10 ’ 70 fifteen 42 22 12 0 0.16 / 0.4 1,025 1 ^e Calcined soda fifty 12-10 ’ 90 thirty 48 23 10 0.5 0.4 / 0.9 1,025 2 °. Polyacrylamide 35 6-10 ’ fifty 5 32 22 12 1 0.8 / 1.6 1,025 2 ^s . · Sodium hydroxide 35 9-10 ’ > 0 fifteen 44 22 eleven 0.5 0.8 / .1.6 1,025 r b 2. Calcined soda thirty 12'10 ’ 90 thirty 53 21 eleven 0 0.76 / 1.44 1,025 3 °. Polyacrylamide 35 6 10 ’ fifty 5 28 24 thirteen 2,5 0.4 / 1.24 1,025 h ⁵ . Sodium hydroxide 55 9-10 ’ 70 fifteen 42 25 thirteen 1 0.8 / 1.28 1,025 s ^b . Calcined soda 10 12-10 ’ 90 thirty 54 25 eleven 0 1/1, 68 1,025 4 Composition 2 3 10 ’ 70 fifteen Product heterogeneous There is not ra s tv about rep honey ties 5 Composition 2 15-10 ’ ⁷⁰ fifteen Product badly soluble, caked pieces 6 Composition 2 9-10 ’ 20 fifteen 20 21 23 4-6 0.32 / 0.44 1,03 Famous the way 7 Composition 2 - 90 5 12 20 100 52 X 1,03 8 - 90 fifteen 20 23 56 26 0.12 / 0.32 1,025 9 - 90 thirty 25 26 28 14 0.16 / 0.36 1,03 10 - 90 180 44 60 12 0 0.7 / 1 1,025 table 2 Fluid composition Content U. t in, about, SNS 1/10, (clay powder 5%) reagent, may. % g / cm ³ from cm ³ % Pa PAA obtained by a known method 0,025 1,025 23 22 23 0 / 0.3 T <f is 0.1 1,030 thirty 39 36 1.28 / 2.04 _ eleven _ 0.25 1,032 Not flowing 28 thirty 2.8 / 4.6 - ^and - 0.5 1,035 Not flowing 8 - - The reagent prepared according to the proposed way 0,025 1,025 20 14 0.5 0 , 04 / 0.2 Also 0.1 1,025 22 11.5 0 1.8 / 1.9 - ^m -. 0.2 _about 5 1,03 55 8 0 3.6 / 5.9 . eleven __ . ° ' ⁵ 1,033. Not flowing 6 0 - T a b faces 3 Fluid composition Content At t from 0% SNS 1/10, (clay powder 1 o 1 5-a 1 '-z 1 reagent, may. % g / cm ³ cm ³ Pa PAA cooked by famous soba soon 0,025 1,055 23 14 2 1,2 / 2,0 Also 0,050 1,060 380 23 3 6.6 / 7.24 - ⁿ - 0,100 1,060 Not flowing 26 0 3.8 / 6.6 ' The reagent prepared according to the proposed way 0,025 1,055 thirty eleven 1 0 1.76 / 3.6 Also 0,050 1,060 42.5 9 0 6.24 / 6.64 _ ”_ 0,100 1,060 thirteen 7 0 7.6 / 8.6- Table ^ Clay Powder 3 PAA Urea 0.05 fifteen 1,04 20 28 20 0 / 0.3 -5.6 Clay powder 3 - PAA 0.1 1.06 thirty 31 29th 1.3 / 2.0 -12 Urea 28 Clay powder 3 PAA 0.3 1.05 Does not flow 100 31 - -4.5 Urea 12 Clay powder 3 New reagent 0.05 1,04 19.2 eleven 0 0.02 / 0.24 -5.6 Urea fifteen Clay powder 3 New reagent 0.1 1.06 26,4 9 0 - -12 Urea 28 Clay powder 3 New reagent 0.3 1.05 20 5 0 0.08 / 1.26 -4.5 Carbamide 12 w cn w mid mid mid about about about "1 • h 4* w— 4" t— b <υ f! -__ K f 1 υ X I P b 1 No. 1 a F X | ABOUT φ Et f L i from ORG about f 1 1 φ f i i X - O. 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X X (X X about x X f about N f X a l x g g § about X f about from from- B TO Sodium hydroxide 10 146 9 · 10 ³ 70 15 28 24 23 5.0 0.2 / 0.4 1025 VZO ' ^cm3 > / / --Ζ ___ h \ / /> 100 / /// -4-L l X x - l X x X \ 1 / and 1 --t _________ \ \ \ 1 1 1 1 __1______ L l X A L A---- \ X \ \ - Y g Concentration, May. %