Loading Port:China main port
Payment Terms:TT OR LC
Min Order Qty:1 m.t.
Supply Capability:10000 m.t./month
Low-density oil well cement:
It is a series of new oil well cement products developed according to oilfield requirements by our company. The density range is 1.20-1.60g/cm3, and the typical product is 1.60g/cm3 oil well cement of high strength and low density. It is mainly composed of cement-based material, lightweight material and additives. The low-density oil well cement products have wide range of applicable temperature and their strength may not shrink. Meanwhile, this cement is of high early strength, good rheological property, low slurry density, less free fluid and fluid loss and low permeability at low temperature. It can often be used for shallow layer as lead slurry, and it has better effect of lead cementing particularly for deep cementing at complicated strata with low stratum pressure and active air layer. Such cement has been used in oilfield and its main property indicators have met the advanced level in
Main parameters:
(using product with density of 1.60g/cm3 as example)
Items | Indicators | |
Slurry density1）/(g/cm3) | 1.60±0.02 | |
Free fluid /% | ≤3 | |
Fluidity /mm | ≥240 | |
Thickening time 2）/min | 120～180 | |
Rheological property | Rheological index η3） | ≥0.5 |
Consistency coefficient K4）/(Pa·Sn ) | ≤2 | |
20～70 | ||
Dynamic shearing stress YP6), Pa | 2～8 | |
Compressive strength (24h, 20.7 MPa,45℃,60℃,90℃)/ MPa | ≥20.0 | |
Compressive strength (48h, 20.7 MPa,45℃,60℃,90℃)/ MPa | ≥22.0 | |
1) Slurry density prepared according to recommended water cement ratio; 2) Thickening time can be adjusted according to customer’s demand; 3) η=2.096lg(θ300/θ100); 4) K=0.511θ300/511n ; 5) PV=1.5(θ300-θ100); 6) YP=0.511θ300- 0.511PV. | ||
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.
