First, the use of products
The lignite resin SPNH is a temperature resistant and salt resistant drilling fluid filtrate reducer composed of sulfonated phenol formaldehyde resin and sulfonated lignite, which is used together with sulfonated tannin and sulfonated asphalt. The product is introduced in benzene sulfonic acid unit, benzene ring and connected between carbon atoms, is resistant to high temperature. And because it in the ortho or para position of the introduction of sulfonic acid sodium base on SO3Na, bond strong hydration, associating water is high, the and solve its water solubility, decided it anti salt, anti calcium, reduce high temperature and high pressure to reduce water loss. Multi resin anti high temperature and anti collapse water reducer as a deep well mud treatment agent, with high temperature and high pressure drop water loss, salt, calcium and other good performance, for the consolidation of the wall, anti collapse, anti card has an important role.

Two, technical requirements

Project		Index
Appearance		Song brown powder
water content，%		≤18
Water insoluble matter，%		≤12
PH value (1% aqueous solution)		9.0～10.2
Filter loss at room temperature, ML	Fresh water slurry	≤10
	Sodium chloride contaminated pulp	≤15
High temperature and high pressure filtration, ML	Fresh water slurry	≤30
	Sodium chloride contaminated pulp	≤35
Apparent viscosity，MPa•s	Fresh water slurry	≤15
	Sodium chloride contaminated pulp	≤40

Three, the use of methods
Can be used in combination with other mud treatment agent. Recommended dosage 1-3%.

Four, storage and transportation
1 products are stored in a dry and ventilated place, avoid direct sunlight and rain, away from fire.
2 transport and handling should be light light unloading, packaging to prevent breakage. Transport should be covered.

Five, matters needing attention
In the use of the process, the staff should wear a dust mask, wear chemical safety glasses, wear anti-static work clothes. Avoid producing dust. Prevent products from entering the eyes or in contact with the skin, once the occurrence of the above situation, with water or saline flush, the situation is serious and timely medical treatment.