SU610978A1 - Plugging mix - Google Patents

Description

one

The invention relates to lightweight grouting materials used in fastening drilling surfaces in the temperature range of 25-ZOO ° C.

Known tamlonazh: th material containing a living and facilitating additive: active mineral additives, clay, carbon (gilsonite, petroleum coke), industrial waste 1,

However, this material is used in a narrow temperature range (2000 ~ 50 s).

Also known is a lightweight cement based slurry with petroleum coke. This material works in a small range of high temperatures 2, is explosive during grinding, has a maximum compressive strength of 1, 5 MPa, a density of at least 1.4 g / cm.

The chain of the invention is to obtain a lightweight high-strength grouting stone at temperatures of 25 ° C,

The goal is achieved by the fact that the cement slurry, which includes the stagnant, contains grinding dust as a facilitating additive — production waste

machining asbestos friction materials in the following ratio of components, weight,%:

In the living 6O-9O

Grinding wheel

dust 1O-4O

. Portland cement, granulated slag slabs, ShPTsS-120, ShPTsS-2OO, depending on the temperature range of application, can be taken as the primary. The density of grinding dust is 1,8O-2,5O g / cm Specific surface 32OO-6OOO .. The chemical composition of grinding dust, wt.%:

Cured polymers (resins, rubbers) 15-25

Asbestos15-45

Varit5-35

Oxides of aluminum, iron, magnesium, zinc, O-40

Soot, graphite1-15

Grinding dust (SHP) - the product is ready to use as a lightweight additive. When using it

there is no need for measuring and sifting material

The grouting material is prepared by thorough mixing in the grinding and grinding dust with the help of serial equipment.

Example. The grouting material consists of 90% nopTnanAueNfeHTa and 1O% of grinding dust. To the grouting material, 6O% water is added to the material, which is obtained by grinding. solution density 1.53 g / cm. The flowability of the solution according to Koiiycy AzIME is 18 cm. The flexural / compressive strength of the two daily periods of hardening at a temperature of 25 ° C and a UMP pressure is 3,4 / 4,4 ,,. ™ ,, „„ „„ „„, MPa .; , The same solution at the temperature of JUS C gives a two-day plug-in bending strength when the bend is burning 4.1 / 4.5 MPa. PRI me R 2, The tamping material consists of 6O% slag sand and WGS-2OO cement and 4O% grinding dust. 80% of water is added to the packaging material, a solution of 1.48 g / cm density is obtained. The flowability is 18 cm. The flexural / compressive strength of samples of two-day period of hardening at a temperature of 2CO ° C and a pressure of 5O MPa is 3, 9/10, 4 MPa. At the same temperature, the cement slurry gives a stone of two-day bending / compression strength 3.9 / 9, 4MP PR n m e R 3. Tonimlazhny. Material consists of 9O% of the shale-cracked cement SPRT-.12O and grinding dust. With the addition of 55% water, a cement solution with a density of 1.58 g / cm and a spreadability of 18 cm are obtained. The flexural strength / length of the samples of the two-day period of hardening at a temperature of 120 ° C and pressure of 3 MPa is 2.3 / 16.5 MPa , at a temperature of 120 ° C and a pressure of 30 MP - 2.3 / 16, At a temperature of this solution, the syrup stone has a two-day bending-compression strength of 3.2 / 17.3 MPa. PRI me R 4 “The packing material consists of 9O% granulated slag and

1O% grinding dust. When 60% water is added to the packing material, a cement slurry with a density of 1.62 g / cm and a flow of 22 cm is obtained. The flexural / compressive strength of specimens of two-day period of hardening at a temperature of 60 ° C is 2.5 . Cementing. The mattress holds 6% of the graded bat and 40% of the grinding dust. When 75% of water is added to the grouting material, a raft solution of 1.46 g / cm is obtained and a 21 cm cement width is 21 cm. The cement stone has a flexural / compressive strength after two days of hardening of 3.3 / 5.3 MPa. Offered, „„. ,,. ,, ,,., ", ,, t.,", G, "", T1., Tg. The cementing material has a wide temperature range of use (from 25 to) - with sufficient strength cement ™ log stone. The injectable lightening additive prevents the cementing material from cjiemviBaHUH, increases its effectiveness. Form of the Invention A well-formulated solution for cementing wells, containing a reinforcing and facilitating additive, characterized in that, in order to obtain a lightweight, high-strength packaging stone in the range of 25-ZOO ° O, as a simplifying additive, it contains grinding dust production The machining of asbofricdionic materials, and the components. are in the following ratios, wt.%: Generally, 60-90 Grinding dust 10 40 Sources of information, taken into account during the examination: 1, V. Danyushevsky and others. Reference Guides; Lo r tamperra, M., Nedra, 1973, p. 93 „2. Lightweight cement backing with petroleum coke for cementing deep wells, foslekt VDNKh, TrozNII, 1963.