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cement system that allows creating a reliable barrier for cementing steam injection wells where the working agent's temperature exceeds 300°C. The unique composition withstands cyclical temperature loads, preventing cracking and, as a result, ensuring the integrity of the annular space.
SJC
SJC
Chemical description
SJC (STEAM JET CEM) REPRESENTS A MULTICOMPONENT MIXTURE OF MATERIALS, PRIMARILY OF INORGANIC ORIGIN.
Physical properties
Appearance: powder, ranging from gray to dark gray color
Solubility in water: partial
Solubility in water: partial
Properties of cement stone
Density of cement slurry — 1.85 g/cm³ – 2.0 g/cm³
Compressive strength after five cycles:
at 25°C — not less than 15 MPa
at 195°C — not less than 20 MPa
Setting time — adjustable.
Compressive strength after five cycles:
at 25°C — not less than 15 MPa
at 195°C — not less than 20 MPa
Setting time — adjustable.
Advantages
- The stone withstands temperature variations in radial and axial directions;
- absence of cracks in the cement stone, resulting in no heat loss during steam injection into the formation;
- increased trouble-free operating period of the well.
Usage limitations
Operating temperature range from 205°C to 100°C
Cyclic temperature range: from 110°C to 250°C
Cyclic temperature range: from 110°C to 250°C
Packaging and storage conditions
PNS (Cement Systems for Steam Injection Wells) is packaged in soft containers (FIBC) weighing up to 1 ton, equipped with triple polyethylene liners. The product is recommended to be stored in a dry place on pallets away from moisture, open flames, and heating devices. After opening the FIBC, it is necessary to ensure the packaging is airtight to prevent product spoilage. The product has a shelf life of at least 12 months.
APPLICATION
Suitable for cementing technical and operational columns in intervals of viscous hydrocarbons where steam injection is applied.
The cement system withstands multiple temperature fluctuations (heating and cooling cycles). It withstands loads due to its elastic properties.
It has increased sedimentation stability and reduced water loss, which has a positive effect on the results of cementing the interval.
График набора прочности
Head Office:
11A Building 1, Novinskiy Boulevard,
Moscow, 121099, Russia
Production:
Building 4, 23rd km of the Federal Highway
Tyumen — Tobolsk — Khanty-Mansiysk,
Tyumen, 625512, Russia
+7 (495) 780-32-31
+7 (964) 789-26-80
11A Building 1, Novinskiy Boulevard,
Moscow, 121099, Russia
Production:
Building 4, 23rd km of the Federal Highway
Tyumen — Tobolsk — Khanty-Mansiysk,
Tyumen, 625512, Russia
+7 (495) 780-32-31
+7 (964) 789-26-80
LLC NEFTESERVIS © 2023