Oil Drilling Sodium Carboxymethyl Cellulose CMC

The use of carboxymethyl chloride (CMC) in oil has an important position in the field of oil. Its primary characteristics are as follows: First, it is viscous. CMC can increase the viscosity of well fluid, making it have good buoyancy, and can make the debris float in the liquid without rapid sinking. It can be used to protect the well to avoid the problems caused by the chip pile. Second, it can reduce water loss. It can make the well wall dense and thin, and reduce the amount of well fluid entering the ground. This can prevent the well wall from collapsing due to water loss, and can maintain the performance of well fluid. Three are high resistance. In the oil environment, CMC can still maintain its performance, and it is not easy to degrade or lose its effect of increasing viscosity and reducing water loss. It is necessary for deep reservoir exploration. Fourth, the compatibility is good. It can add more oil to the well fluid, such as clay, weight, etc. coexist with water, do not produce water, and the performance of the well fluid is integrated. It helps the well work efficiently and safely.

In oil drilling, sodium carboxymethyl cellulose (CMC) has many functions. Its primary use is to adjust the rheological properties of drilling fluids. Like the ancient water control, it needs to be well groomed, and so does the drilling fluid. CMC can keep the drilling fluid at a suitable viscosity and shear force, so that it flows smoothly during circulation, just like water flowing in a ditch, without congestion. When the pump is stopped, it can quickly form a structure to prevent drilling cuttings from settling, just like a strong barrier to protect the well wall. Furthermore, CMC can enhance the filtration loss of drilling fluid. This is like building an embankment and waterproofing, which can effectively reduce the filtration loss of drilling fluid to the formation. If the filtration loss is too much, the water content of the formation near the well wall will increase, the strength will decrease, and it is easy to cause the risk of the well wall collapse. CMC is like a dense barrier, preventing the filtration of drilling fluid and ensuring the stability of the well wall. And it also helps to stabilize the well wall. Because CMC can form a thin and tough mud cake on the well wall, it is like putting a layer of armor on the well wall, enhancing the stability of the well wall, resisting formation pressure and fluid initialization, and protecting the stable progress of drilling operations. At the same time, CMC also has an effect on lubrication and drag reduction. It can reduce the friction resistance between the drilling tool and the well wall, just like applying lubricant to the drilling tool, making it more smooth in the well, reducing the wear of the drilling tool, improving drilling efficiency, and making drilling operations more effective.

If you want to choose a sodium carboxymethyl cellulose (CMC) model suitable for oil drilling, you need to check several ends in detail. First-look viscosity, which is the key in drilling fluids. High viscosity CMC can increase the viscosity and shear force of drilling fluids, and help suspend drill cuttings so that they do not settle. If drilling encounters deep wells or requires high-efficiency suspension of drill cuttings, high viscosity models should be selected; shallow wells or situations with slightly lower suspension requirements, medium and low viscosity can also be competent. Secondary inspection purity, high purity CMC has less impurities and has little impact on drilling fluid performance. Excellent purity can ensure the chemical stability of drilling fluids and reduce the risk of performance fluctuations due to impurities. In environments that require strict drilling fluid performance, such as offshore drilling, high purity CMC should be selected. Furthermore, consider the degree of substitution and the uniformity of substitution. If the degree of substitution is suitable and uniform, the solubility and stability of CMC are good. High degree of substitution enhances the solubility of CMC in water, makes it easier to disperse, and forms a uniform and stable system, which can effectively improve the rheological properties of drilling fluids. In complex formation conditions or operations that require high rheological properties of drilling fluids, the model with good degree of substitution and uniformity should be selected. Double view of temperature and salt resistance. Oil drilling often involves high temperature and high salt formations, so CMC must have good temperature and salt resistance. In high-temperature formations, choose CMC with hot topic stability to avoid sudden drop in viscosity due to temperature increase; in high-salt environments, choose those with excellent salt resistance to ensure stable drilling fluid performance under high salinity. In summary, when selecting CMC models for oil drilling, it is necessary to consider factors such as viscosity, purity, substitution, temperature and salt resistance. According to specific drilling conditions and needs, careful selection can be made to achieve the best drilling effect.

Oil Drilling Sodium Carboxymethyl Cellulose (CMC) is a crucial material in drilling operations. The usage method and precautions are as follows: How to use: 1. ** Pulp **: Inject an appropriate amount of water into the pulp mixing container first, turn on the stirring device, and make the water flow evenly. Then slowly sprinkle the CMC powder into the water, do not put in a large amount at one time to prevent agglomeration. Keep stirring until the CMC is fully dissolved to form a uniform colloidal solution. This process requires controlling the stirring speed and time, and the speed should not be too fast to avoid excessive bubbles; the time depends on the dissolution of the CMC, generally stirring for half an hour to an hour. 2. ** Adding timing **: In the initial stage of drilling fluid preparation, CMC is added to make it fully mixed with other treatment agents to exert synergy effect. During the drilling process, if the performance of the drilling fluid needs to be adjusted, CMC solution should also be added in a timely manner according to the actual situation, and after addition, it should be fully stirred. 3. ** Dosage control **: According to the characteristics of the drilling formation, the type of drilling fluid and the performance requirements, the amount of CMC is accurately determined. Usually the amount is between 0.1% and 1%, the amount of shallow soft formation is relatively small, and the amount of deep complex formation may increase. In actual operation, it needs to be adjusted through test and field test. Precautions: 1. ** Storage Conditions **: CMC should be stored in a dry, well-ventilated place to avoid moisture. Once damp, its solubility will be affected, and may even deteriorate and fail. The storage temperature should be kept at room temperature, and the ambient temperature should not be too high or too low. 2. ** Water Quality Requirements **: The water used to dissolve CMC should be as pure as possible, free of impurities and excessive metal ions. If the metal ion content in the water is too high, it will react with CMC, reducing its viscosity, filtration loss and other properties. 3. ** Compatibility **: It is necessary to pay attention to the compatibility of CMC with other treatment agents in drilling fluid. Some treatment agents may react chemically with CMC, weakening or destroying its effect. Therefore, compatibility tests should be carried out before adding new treatment agents. 4. ** Monitoring Adjustment **: During drilling operations, the performance parameters of drilling fluids, such as viscosity and filtration loss, should be continuously monitored. According to the monitoring results, the amount and addition method of CMC should be adjusted in time to ensure the stable performance of drilling fluids and meet the needs of drilling engineering.

The market price range of sodium carboxymethyl cellulose (CMC) for oil drilling is difficult to generalize, because its price often varies due to various factors. The first to bear the brunt is the quality of the product. CMC with excellent quality, high purity and excellent indicators is expensive; while those with lower quality may be slightly lower. For example, high-quality CMC produced in the fine chemical industry is often expensive because it can accurately meet the needs of high-end oil drilling. The second is related to market supply and demand. If the oil drilling industry is prosperous, the demand for CMC will increase sharply, and the supply will be difficult to continue for a while, the price will rise; conversely, if the market demand is weak and the supply exceeds the demand, the price will decline. At some point in the past, the oil drilling industry was booming, and the demand for CMC was booming, causing its price to rise. Furthermore, the price of raw materials also has an impact. The CMC system requires specific raw materials. If the price of raw materials increases, the cost of CMC will increase, and the price of CMC will also increase accordingly. If the raw material market fluctuates, causing the cost to rise, the CMC price will also be adjusted accordingly. Regional differences also make prices different. In places with developed economies and convenient logistics, the price may be relatively stable due to intense competition; in places with remote and inconvenient transportation, the price may be higher due to factors such as transportation costs. Roughly speaking, the market price of CMC for oil drilling may be between tens of yuan and hundreds of yuan per kilogram. However, this is only a rough estimate. To know the exact price, it is necessary to carefully review the current market dynamics and the quotations of various suppliers.