Overview:
DOC-GAS STOP is a kind of AMPS/ Tannin copolymer anti-gas channeling fluid loss agent for oil well cement, which can not only effectively control the water loss and free liquid of cement slurry, but also has a strong gas blocking ability, which can prevent the gas migration in cement slurry and prevent the occurrence of gas channeling, so as to improve the sealing quality of cementing.
Product information (Liquid GAS STOP)
Appearance | Brown liquid |
Density（g/cm³） | 1.09±0.01 |
pH | 3～5 |
Scope of application
n Recommended usage temperature：＜180℃；
n Recommended dosage：2%-6%
Characteristics
n The prepared cement slurry has the characteristics of high shear force and low viscosity, high stability, and easy pumping.
n It has excellent ability to control water loss and free liquid.
n It has high resistance to gas channeling, short thickening transition time, and can effectively prevent the occurrence of gas channeling.
n Good compatibility with other additives.
Typical performance
Dosage,bwoc | Rheology abilityΦ3/6/100/200/300
| API water loss(mL) | Compressive strength (MPa) | Thickening transition time, 40-100BC(min) | ||||
4.0% | ＞15 | ＞20 | ＞50 | ＞90 | ＜150 | ≤50 | ≥14 | ≤10 |
•Slurry formula: 100%SDG+FW+0.25% defoamer +4% DOC-GAS STOP+0.5% Retarder
•Density 1.9g/cm³
•Test temperature: 60℃
Packaging and storage
n Packaging specifications: 200kg/barrel or 25kg/bag or according to user requirements.
n Storage conditions: Store in a dry and ventilated place, away from heat and ignition sources.
n Shelf life: 24 months.
n Note: This product also has solid type.
