Toughness Oil Well Cement (Decrease Brittleness of Set Cement and Improve Its Toughness)

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China main port
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TT OR LC
Min Order Qty:
1 m.t.
Supply Capability:
10000 m.t./month

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Product Description:

    Toughness oil well cement: 

    Portland set cement belongs to brittle material with poor tensile strength, shear strength and impact resistance. Cement sheath set after injecting cement into oil and gas wells is thin. In subsequent drilling process, the cement sheath between well wall and casing may be hit by rotary drill stem or bit. In highly-deviated wells or horizontal wells, cement sheath bears great tensile force and shear force. During perforation and output increase, cement sheath may suffer great impact, vibration and intrinsic pressure. All these may lead to crush of cement sheath or macroscopic cracks, affecting sealing of cement sheath and ultimately influencing production and reasonable development of oil and gas fields and shortening life cycle of oil and gas wells.

Toughness oil well cement developed by our company may effectively decrease brittleness of set cement and improve its toughness to satisfy cementing and subsequent operation (drilling, perforation, fracturing) requirements and improve leakage resistance at the same time.

Toughness Oil Well Cement (Decrease Brittleness of Set Cement and Improve Its Toughness)

Main parameters: 

 

Items

Indicators

Slurry density g/cm3

1.6-1.9

Free fluid %               

≤2

Fluidity, mm            

≥220

Initial consistency,   BC

≤30

Thickening time,   min

90-260 (adjustable)

Compressive   strength (60,at normal   pressure,24h), MPa     

≥20

Fracture   resistance, at normal pressure,24h)      

≥5.5

      Packing and Storage

        Packing: 1000kg/bag, 50kg/bag
        Storage: Cement in transportation and storage when not damp and mixed with debris, different varieties and the strength grade of cement during storage to avoid confounding.


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