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| [CN] anionic polyacrylamide for oil drilling fluid Nov 8, 2014
Anionic polyacrylamide used for oil drilling
Chinafloc A2718 is a specifal size of anionic polyacrylamie with high molecular weight used for
oil drilling mud addtives.
1. Product characteristics
White or yellow powder,nontoxic,noncorrosive,easily solubale in water,mainly used as a selective flocculant for
nondispersed,low solid phase waterbased drilling fluid.it can help to reduce water losses,improve drilling fluid
rheological properties and reduce the friction resistance as well.
2.specifications
Physical and chemical specifications
Drilling fluid performance index
Items
specifications
Item
Specifications
Solid content(%)
≥89
Flocculant time(s)
≤40.0
Purity(%)
≥89
Filtration reducing rate
≥30.0
Fineness(0.99mm sieve margin)
≤10
Molecular weight(million)
18-25
Degaree Hydrolysis(%)
25-35
3. Application
In oil exploitation, polyacrylamide is mainly used for drilling mud as well as Enhanced Oil Recovery, etc., which is
widely used in drilling, completion, cementing ,fracturing, enhanced oil recovery and other mining operations in the
oil field. SH’s products have been used successfully for many years as drilling mud additives for flocculant ,
dispersants, blocking agent , lubricants , fluid loss additive, and shale inhibition agent etc. With the continues
progress, SH devotes to develop the products with optimum performance to meet the increased requirement of water
based drilling fluid.
Flocculant
The polarity gene adsorbs the solid particles dispersed in water, bridges between the particles and formats the large
aggregates, sedimentation and separates of water, flocculates detritus and clay in drilling fluid.
Dispersant
In the drilling mud treatment, this product can improve the lubricity and stability of the mud to reduce the water loss,
prevent sticking effectively, increase drilling efficiency.
Blocking Agent
The product can generate cross linking under the effect of Al3+, Fe 3+, Ca2+ and other ions, a part of high molecular
compound is changed from linear shape into body shapes.The product is not water-soluble, and can be adsorbed
on the borehole to block ground layer gaps and to prevent the leakage of drilling fluid.
Lubricant
The product can be absorbed on the surface of metal or clay particles to form liquid film to change friction on the
solid surface into liquid frication, thereby lubricating drill bits and drills, lowering the mud cake frication coefficient,
and reducing underground accidents.
Fluid Loss Additive
The hydrolysis degree is higher, the hydration group on the molecular chain is more, the hydration is better, and it
changes from flocculant into fluid loss additive. Drilling mud should be treated to keep cake’s permeability as low
as possible in order to maintain a stable borehole and to minimize filtrate invasion, and damage to the pay zone.
Shale Inhibition Agent
The multi-point adsorption of polymer formats to the criss-cross membrane macromolecules, plays a role of
enhancing the stability of borehole.
4. Attention
The product is moisture absorbent, thus to protect from damp and moist for conservation. It should be stored in a
dry and ventilate storehouse, and not be exposed to air and sunshine.
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Company Profile |
Company:
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Shandong shuiheng Chmeical
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