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28 Feb,2026

Is barite powder a hazardous substance?

Barite powder is generally not classified as a hazardous substance, but under certain conditions, there are certain health and transportation risks involved, and proper procedures must be followed.

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28 Feb,2026

What are the stages of lignosulfonate in oil fields and what agents are used?

Lignosulfonates are mainly used as drilling fluid treatment agents, surfactants for tertiary oil recovery, and profile control and plugging agents in oilfield operations.

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28 Feb,2026

The role of carboxymethyl cellulose in drilling

Carboxymethyl cellulose (CMC) is mainly used as a viscosity enhancer and filtrate reducer in drilling operations.

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What are the common types of water loss agents?

The common types of water loss agents mainly include water-soluble polymers, granular materials, and environmentally friendly water loss agents.

2026/02

Principle of action of water loss reducing agent

The core function of a water loss agent is to control the filtration of cement slurry or drilling fluid into the formation through multiple synergistic mechanisms, thereby forming a thin and dense filter cake, reducing water loss, ensuring wellbore stability, preventing interlayer flow, and protecting oil and gas reservoirs.

2026/02

Which weighting agent performs best in high-temperature deep wells?

In high-temperature deep well operations, barite powder that has undergone surface modification treatment exhibits the best performance and is the most optimal choice for comprehensive performance under current technological conditions.

2026/02

How to select the appropriate weighting agent for oil drilling fluid?

When selecting barite powder as the primary option for weighting oil drilling fluids, it should be prioritized due to its superior performance in density adaptability, formation compatibility, cost control, and environmental safety.

2026/02

What are the weighting agents for oil drilling fluids?

The weighting agents for oil drilling fluids mainly include barite powder, iron ore powder, limestone powder, galena powder and manganese trioxide powder, among which barite powder is the most widely used weighting agent for drilling fluids at present.

2026/02

How to modify lignosulfonates to enhance performance?

Lignosulfonates can improve their performance in oilfield applications through chemical modification, physical modification, and composite modification methods, especially in terms of drilling fluid stability, tertiary oil recovery and displacement efficiency, and temperature and salt resistance.

2026/02

The principle of using organosilicon as a drilling aid

The core principle of using organosilicon as a drilling aid lies in its unique semi inorganic and semi organic molecular structure, which can form a hydrophobic barrier on the surface of clay through chemical adsorption, effectively inhibiting hydration expansion, improving rheological properties, and enhancing high-temperature stability.

2026/02

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