The polyanionic cellulose supplier introduced how polyanionic cellulose (PAC-HV, PAC-VL) is applied in oil drilling and what role polyanionic cellulose PAC can play.
1. Introduction to the performance of polyanionic cellulose PAC:
Polyanionic cellulose (PAC-HV, PAC-VL) exhibits high salt resistance and high temperature resistance in oil drilling applications, and also has good performance in inhibiting and reducing water loss. Low-viscosity PAC can effectively reduce fluid loss, and high-viscosity PAC has a high beating volume, and the effect of reducing fluid loss is obvious.
2. Introduction to the application of polyanionic cellulose PAC:
According to the good salt resistance and high temperature resistance of polyanionic cellulose (PAC-HV, PAC-VL), PAC products are especially suitable for deep wells, high temperature wells, brine wells and offshore oil drilling. The mud liquid prepared by polyanionic cellulose (PAC-HV, PAC-VL) is suitable for any mud from fresh water to saturated brine.
Also due to the good water loss and inhibition properties of PAC, it can also be used for pulping. The pulping capacity of PAC can reach 2-3 times that of ordinary CMC; low viscosity PAC can effectively reduce fluid loss, and high viscosity PAC can make pulp High, the effect of reducing fluid loss and water loss is obvious; the mud liquid can inhibit the dispersion and expansion of clay and shale in high-salt medium, thereby controlling wellbore pollution and delaying the time of clay hydration, expansion and dispersion; it has good colloidal protection ability .
Inhibitors and water loss agents formulated with polyanionic cellulose for oil drilling can be used in various complex formations such as salt, paste, high temperature, and difficult drilling conditions such as oceans and deserts.
3. Introduction to the advantages of using polyanionic cellulose PAC in oil drilling:
Compared with traditional CMC, the workover fluid formulated with polyanionic cellulose (PAC-HV, PAC-VL) has the ability to protect the production layer from permanent damage; it has good resistance to water and sediment penetration, rarely foams, and has cleaning properties The bearing capacity of the borehole reduces the workload of maintaining the borehole. It can be stored or transferred between wells, and it is lower than ordinary mud workover fluid.
The fracturing fluid prepared by adding PAC to the fracturing fluid can withstand 2% KCI solution (must be added when preparing the fracturing fluid), and has good corrosion resistance. It has good solubility, is easy to use, can be prepared on site, has fast gelation speed and strong sand-carrying ability. It is used in low-permeability formations, and the fracturing effect is better.
Shandong Wellton is a large-scale manufacturer of polyanionic cellulose (PAC) additives, which can provide customers with the required polyanionic cellulose additives. If you are interested in a certain product, please feel free to contact us.