SU1640140A1 - Method of producing granulated mixture for drilling mud - Google Patents

Abstract

The invention relates to the field of making compositions based on paste-like polymers and clays used as a raw material for the preparation of washing liquids in the practice of drilling. The purpose of the invention is to simplify the technology for producing a granulated composition, increasing its technological parameters. The suspension of the enriched kichiltepinsk clay and the pasty polymer are mixed, and subsequently dried at t-pe 150-200 ° C to the optimum residual moisture, to obtain a granular composition. The latter consists of the following ingredients in their ratio, wt.%: Clay 74,5-82,5; polymer 6.5-9.5; moisture 10-12. To reduce the cost of the granular composition, water-soluble polymeric blown, obtained on the basis of chemical production wastes, is used as a polymer. During the implementation of the method for obtaining the composition of the clay enrichment beta, solid products were obtained, which were partially dissolved in water even after grinding in a mill. 1 hp f-ly, 2 tab. 53 G "R.B

Description

The invention relates to the preparation of compositions based on paste-like polymers and clay used as a raw material for the preparation of washing liquids in drilling practice.

The aim of the invention is to simplify the technology of obtaining a granular composition, improving its quality.

The goal is achieved by mixing a suspension enriched in Kiziltepinsky clay and a paste-like polymer, for example, acrylic water-soluble

polymer K-17, followed by drying at 150-200 ° C to the optimum residual moisture get granulated composition (GC). CONTAINING of the following ingredients, wt.%: Clay79.5-82.5

Polymer6.5-9.5

Moisture 10-12

Example 1. 110 g of clay (low grade) are taken, 100 ml of water are poured, mixed and left for 2-3 hours. Then the upper part of the clay suspension Ut strokes are drained 9-10%) and 70 g (7 i in terms of

3164

on the active substance of the polymer) 10% pasty polymer K-17.

After mixing until a homogeneous homogeneous mass is formed, it is fed to drying at 180 ° C to a residual moisture content of 11% (the content of clay and polymer in the granular composition is 83.5 and 5.5 wt.%, Respectively.

The finished product is a grayish brown granular composition. The quality of the obtained samples, depending on the preparation conditions, is evaluated by the filtration and technological properties of 5% drilling mud based on them.

The samples obtained in examples 2, 3,4,5,6,8,11,12,13, good dissolution

using known water-soluble polymers K-4, CMC under optimal conditions, as well as data confirming the importance of the feature of the stage / enrichment of clay.

When implementing the method for producing the composition without enriching the clay, solid products are obtained that are limited in water (because the waste contained in the clay is poorly amenable to dissolving or generally remains in the form of loosened lumps) even after grinding in a mill.

The enrichment of low-quality clay, followed by the introduction of a pasty polymer and drying, improves the quality of the granulated composition, which ensures high

in water and have high filtration performance of the drilling fluid that does not deteriorate for 6 months, simplify the production technology by eliminating the labor costs of the stages, reduce the cost price of the target product, thanks to the use of cheap reagent and energy saving.

by technological and technological indicators (sme for 30 min, С.0. 0-1%). However, in example 5, polymer consumption is not justified, and in example 13, due to the high residual moisture, the product closes.

A study of the filtration and technological properties of 5% drilling mud 5, prepared on the basis of samples of granular compositions, depending on the preparation conditions, is given in Table 1.

In example 1, due to the low polymer content, low technological parameters of the drilling fluid are observed, the preparation of the granulated composition according to example 7 is not cost-effective, since drying at a low temperature is long.

Samples of granular compositions., Of nological parameters carried out in examples 9 and 10 do not meet the quality requirements: in example 9 this is due to the high drying temperature, due to which the clay loses its colloidal properties and in example 10 due to low residual moisture granulation composition poorly dissolved in water,

Table 2 gives examples of the preparation of a granular composition with

45

additionally enrichment of the clay is carried out, and the mixture is dried at 150–200 ° C.

2. Pop-up method 1, characterized in that, in order to reduce the cost of the granular composition, water-soluble polymeric products obtained from chemical production wastes are used as the polymer.

filtration technology so far

drilling mud pumps that do not deteriorate for 6 months, simplify the production technology by eliminating the labor costs of the stages, reduce the cost price of the target product, due to the use of cheap reagent and save energy consumption.

Invention Formula

1. A method of obtaining a granulated composition for a mud based on clay and a polymer, comprising mixing the components by subsequent drying to a residual moisture content of 10-12%, characterized in that, in order to simplify the technology of obtaining the granular composition, increase its technical

additionally enrichment of the clay is carried out, and the mixture is dried at 150–200 ° C.

2. Pop-up method 1, characterized in that, in order to reduce the cost of the granular composition, water-soluble polymeric products obtained from chemical production wastes are used as the polymer.

Table 1

Claims (2)

Claim 1. A method of obtaining a granular composition for a mud based on clay and polymer, which includes mixing the components with subsequent drying to a residual moisture content of 10-12%, characterized in that, in order to simplify the technology for producing a granular composition, increase its technological parameters clay is additionally enriched, and the mixture is dried at 150-200 ° C. 2. The method of pop. 1, characterized in that, for the purpose of lower-. the cost of the granular composition, water-soluble polymer products obtained from chemical wastes are used as the polymer. Table 1 At- The content in the Civil Code,% Tempe Residue Oud el Drainage Daily That beat measures ratrata naya ny country house sucks nost Clay Polymer drying ow already weight, % g / cm ³ ° C % g / cm ³ cm ³ 1 83.5 5.5 180 eleven 1, 04 fifteen thirteen 0.04 2 82.5 6.5 180 eleven ’1.04 7 1 0.01 3 81.0 8.0 180 eleven > 1.04 6 0 0 4 79.5 9.5. 180 eleven 1,04 6 0 0 5 79.0 10.0 180 eleven 1,04 5.5 0 0 6 81.0 8.0 150 eleven 1,04 7 0 0 7 81.0 8.0 140 eleven 1,04 7 0 0 8 81.0 8.0 200 eleven • 1.04 7 0 0 9 81.0 8.0 220 eleven 1,04 14 7 0.04 10 83.0 8.0 180 9 1,04 eleven 4 0,03 eleven 82.0 8.0 10 1,04 6 0 0 12 80.5 7.5 12 1,04 7 0 0 1E 80.0 7.0 thirteen 1,04 8 3 0.02 Ί a b l 2 Soi Content% Residue Tempe Specific Drainage Daily Stable tav - naya ratrata weight, country house sucks nost Clay' Polymer bliss drying g / cm ³ .V ^cm3 % g / cm ³ nost ° C in the Civil Code,% K-4 1 81.0 8.0 eleven 180 '1,04 6 0 0 2 82.0 8.0 10 180 1,04 6 0 0 3 80.5 7.5 12 180 1,04 6 0 0 CMC 4 81.0 8.0 eleven 180 1,04 7 0 0.01 5 82.0 8.0 10 180 1,04 7 0 0.01 6 80.5 7.5 12 180 1,04 7 0 0.01 K-17 7 81.0 8.0 eleven 180 1,04 6 0 0 8 82.0 8.0 10 180 1,04 6 0 0 9 80.5 7.5 12 180 1,04 7 0 0 10 81.0 8.0 eleven 180 1,04 eleven 4.5 0,03 eleven 82.0 8.0 10 180 1,04 10 5 . 0,03 12 80.5 7.5 12 180 1,04 12 6 0.04 In compositions 1–9, enriched clay, in compositions 10–12, is not enriched.