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Lignite resin

外观黑褐色粉末水分,%≤18水不溶物,%≤12PH9.0~10.2室温中压滤失量,ml淡水浆≤10氯化钠污染浆≤15高温高压滤失量,ml淡水浆≤30氯化钠污染浆≤35表观粘度,mPa·s淡水浆≤15氯化钠污染浆≤40 褐煤树脂SPNH主要由磺化酚醛树脂SMP和磺化褐煤SMC及铵盐HPAN组成,黑褐色粉末外观,易溶于水,水溶液呈弱碱性;本品是一种耐温抗盐的钻井液处理剂。作用及特点褐煤树脂其树脂分子链

Classification:

Oilfield drilling series

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Description

Appearance

Black brown powder

Moisture, %

≤18

Water insoluble matter,%

≤12

PH

9.0~10.2

Room temperature filter loss, ml

Freshwater slurry

≤10

Sodium chloride pollution slurry

≤15

High temperature and high pressure filter, ml

Freshwater slurry

≤30

Sodium chloride pollution slurry

≤35

Apparent viscosity, mPa·s

Freshwater slurry

≤15

Sodium chloride pollution slurry

≤40

Project indicators

Lignite resin SPNH mainly consists of sulfonated phenolic resin SMP, sulfonated brown coal SMC and ammonium salt HPAN with the appearance of dark brown powder. It is easily soluble in water and the aqueous solution is weakly alkaline. This product is a heat-resistant and sal-resistant drilling fluid treatment agent.

Functions and characteristics

Lignite resin introduces anti-high temperature and salt-resistant groups on its resin chains, which significantly increases the performance of temperature resistance and salt resistance. Therefore, it can be used in deep wells with high formation temperature, and the temperature resistance can reach 200°C. It also can significantly reduce the water loss of fresh water, salt water and salt water slurry, as well as has certain viscosity-reducing effect. When using with sulfonated tannin and sulfonated asphalt, it is one of the ideal high-temperature deep-well mud systems for water-based drilling fluid systems for high temperature and salt-reducing fluid loss agents. In addition, it has a certain viscosity-reducing effect, suitable for high-temperature deep-well mud systems.

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