SU874705A1 - Composition for fixing well shaft - Google Patents

Description

(54) COMPOSITION FOR MOUNTING A WELLBREAK The invention relates to compositions of polymeric compositions and can be used when attaching wellbores of wells, for example, for water supply purposes. A known polymer mixture is L including, wt%: Carbamide resin8-15 Hardener0.3-1.8 Ferrous sulphate4-9, Mineral filler. The closest to the technical essence and the achieved effect to the proposed is a polymer concrete composition. 2, including, weight.®: Urea resin 8-19.8 Ammonium chloride 0.35-1.0 Phosphoric acid 0.05-0.2 Porous glass granules 23.9-39.0 Quartz sand 40-50.8 Micron Operator 5.5-8.9 Nitron fiber 0.1-2.4 The disadvantages of the known compositions are a long period of curing and high adhesion to rigid formwork skins. The purpose of the invention is the acceleration of curing and the reduction of adhesion to the rigid formwork of the first floor. This goal is achieved in that the composition for fastening a well bore, including carbamide resin, hardener, reinforcing fibers and quartz sand, additionally contains furyl alcohol and glycerin, and hardening aniline and crystalline oxalic acid as hardeners, cord reinforcing fibers. fiber in the following ratio of components, wt.%: 28.6-36.0 Urea resin 1.0-1.8 Aniline hydrochloride Crystalline alkali, 5-0.9 velyovy acid 1.4-2.8 Furyl alcohol 0, 7-1.8 Glycerin 1.6-2.1 Cord fiber Ost Flax Combination hardener Silica sand provides more complete crosslinking urea resin and furfuryl alcohol that promotes the accelerated curing of the composition.

PROOF Preparing the compositions of the proposed and known compositions

for fixing the borehole, which are listed in Table. one.

Table 1

Comparative results of tests of the main physicomechanical coupling with the metal

pipe, kgf / cm 0,4

Characteristics of the known and proposed compositions are presented in Table. 2

table 2

0.8

BO

2.0

The use of the inventive composition for fastening a well bore allows speeding up the curing. 1; 6-1.9 times and reduce the amount of adhesion to hard formwork 2.0-2.4 times compared to the known.

Invention Formula

A composition for attaching a borehole, including carbamide resin, a hardener, reinforcing fibers and quartz sand, characterized in that, in order to accelerate the curing and reduce adhesion to hard formwork, it contains additional furyl alcohol and glycerin, and hardener aniline sulphate and crystalline oxalic acid, as reinforced fiber - cord fiber at the following ratio of components, wt.%:

 Urea resin 28.6-36.0 Aniline sulfate 1.0-1.8 Crystalline oxalic acid 0.5-0.9 Furyl alcohol 1.4-2.8 Glycerin 0.7-1.8

0

Cord fiber 1.6-2.1 Quartz sand Else

Sources of information taken into account in the examination

1. USSR author's certificate

No. 560857, cl. From 04 To 25/02, 03.10.75.

2. USSR author's certificate

 522157, class C 04 B 25/02, 05.23.75.

Claims (1)

Claim Composition for attaching a wellbore, including urea resin, hardener, reinforcing fibers and quartz sand, characterized in that, in order to accelerate the curing and reduce adhesion to hard formwork, it additionally contains furyl alcohol and glycerin, and aniline hydrochloride as a hardener and crystalline oxalic acid, as reinforcing fibers - cord fiber in the following ratio, wt.%: '' Urea resin Aniline hydrochloride Crystalline oxalic acid Furyl alcohol Glycerin Cord fiber Quartz sand component 28.6-36.0 1.0-1.8 0.5-0.9 1.4-2.8 0.7-1.8 1.6-2.1 Rest