SU838090A1 - Plugging material - Google Patents

Description

(54) TAMPING.MATERIAL

The invention relates to the drilling of oil, gas and water wells, namely, plugging materials used in the casing of wells at 22-100 ° C. A grouting material is known, which includes a clay, a clay powder. and as an additive that enhances the deformable properties of cement stone, highly dispersed oxide 1 However, the use of a three or four-component mixture is technologically difficult, in addition, the considered additives are scarce and expensive. Known grouting material containing Portland cement and grinding drone 10-40 weight.7, jlJ. Disadvantage | 1 of this material is low deformability. The aim of the invention is to increase the deformability of the co- ment stone The goal is achieved with the following ratio of Ingredia1 wt, wt.%: Portland cement. 92-96 Grinding dust 4-8 Grinding dust has the following chemical composition, wt.%: Asbestos 40-50; rubber + phenol formaldehyde resin 20-28; BaSO, 8-12; AljOj 8-13 volatiles 0.04-0, I. Density of grinding dust 2,202, 50 g / cm. The specific surface is 3200-6000. Grinding dust (BF) is a finished product that does not require grinding, substance, sieving. This additive is hydrophobic, it is a waste of production, and its utilization increases the efficiency of environmental protection measures. Cement slurry from a mixture of Portland cement with the addition of grinding dust prepared in the usual way

3: 838090

(by mixing the indicated components of Siberia and the North of the North.

with a water heater), is satisfactory. The proposed mixture is two-component,

setting time, cement strength can be prepared directly on

bending and heaving, depending on the concrete

deformability ability. 5 conditions of its application.

111Pement cement stabilityPhysico-mechanical properties of pre-caking, which is especially important.applied and well-known cementing

storage of grouting materials in I

Known material

Cement 90 - (+ grind pitch 10

V

Cement 60+ + grinding dust 40

Cement 98 ++ cryptophilic dust 2

Cement 96

+ 1WWHFOval dust 4

Cement 92+ + sander 8

Claims (2)

1. Cement material for cementing wells at 22-100 ° C, containing portland cement and jj grinding dust - waste of friction products, characterized in that, in order to increase the deformability of the cement stone, the components material presented in the table. Contained in the following ratio wt.%: Portland cement 92-96 Grinding dust 4-8 2. The material according to claim 1, characterized by the fact that the grinding dust has the following chemical composition, wt.%: Asbestos 40-50; rubber + 58380906 + foylformaldegndna resin 20-28; 1. Authorsidetols: your SSSG BaSO 8-12; Alg 0; 8-13; 3-6; No. 492646, cl. E21 B 53/138, 1: G / 5. volatiles 0.04-0.1. Sources of information, 2. Author's testimony of CCC1 taken into account in examination No. 610978, cl. E21V 33/138, 1977.