Oil-well gypsum

Oil-well gypsum

Oil-well gypsum is used as an essential component for the manufacturing of grouting mixtures:

  • Grouting mixtures and materials for cementing and plugging-back of wells under the conditions of perennially frozen rocks;
  • Quick-setting grouting mixtures to liquidate areas of increased absorption.

Area of use

  • Drilling, construction and plugging-back of wells under the conditions of perennially frozen rocks
  • Areas of increased absorption of circulation fluids and plugging solutions

Manufacturing base

Composition of plugging solutions. The selected high-quality raw materials and unique manufacturing technology with specially designed and selected technological regimes are used to get grouting mixture and gypsum. The base of oil-well gypsum is a gypsum binder with α - modification.


in circulation fluids and plugging solutions for perennially frozen rocks
  • regulation of the setting time of the grouting mixtures even at low temperatures (from - 5 to + 25 ° C);
  • no-shrink condition when hardening - a guarantee of the given grouting stone operating life;
  • ensuring primary early strength of the grouting stone;
  • homogeneous plugging solution with desired rheological characteristics due to the lack of sedimentation;
  • environmentally friendly product;
  • increased rate of bonding to the casing.

in plugging solutions to liquidate areas of increased absorption

  • creation of the quick-setting sedimentation stable plugging solutions;
  • reduction of time for absorption liquidation.


To confirm the technical characteristics the standard test methods are used in accordance with the requirements of normative documents of Samara Gypsum Plant CJSC GOST 23789-79 and TU 21 RSFSR-153-90.

H/C (normal consistency), %37 - 39
Initial setting time, min.At the earliest 10,0
Final setting time, min.At the latest 20,0
Bending strength in 2 hours, MPaMin. 6,0
Compression strength in 2 hours, MPaMin. 16,0
Cubic expansion % Min. 0,3
Rest on a sieve 0,2mm, %Max. 1,0
Consumption, g/cm³1,4 - 1,5

Packing and marking

Oil-well gypsum is packed:
  • in 3-ply bags 30/40 kg of micro-crepe paper with a single layer of cellophane inside, packed on wooden pallets and palleted;
  • in big bags 750/1200 kg.
At the request of the customer enhanced palletizing scheme can be used, with lots of layers of stretch film and additional layers of corrugated cardboard for material storage on winter roads. According to additional requirements for packaging logos of companies - customers can be applied on the packing.

Storage conditions

In the case of standard packaging in bags or big bags, oil-well gypsum should be stored in places that exclude moisture, as excessive moisture leads to the changes in the properties and technical characteristics of the product (reduction in strength and increase in setting time). With the enhanced scheme it is possible to store material under a canopy or awning. The material should be used immediately after the package opening.
How to buy

Sales department for gypsum product:
+7 (846) 269-64-25 (ext. 4085)

Sales department for gypsum boards
and dry building mixes:
+7 (846) 269-64-25 (ext. 4241)

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