Micro glass beads lso known as grinding glass beads, drilling glass beads are tiny particles made of fine glass materials with excellent physical and chemical properties, so they are widely used in many industrial fields. Especially in the fields of oil and gas drilling, construction, automobiles and aviation, the main role of micro glass beads in the field of oil and gas drilling is mainly reflected in the optimization of drilling fluid performance, the improvement of downhole operations and the improvement of overall operating efficiency. Today, this article will explain in detail how micro glass beads play a role in drilling.
Improve drilling fluid performance
Grinding glass beads are often used in drilling fluids, especially in gravity sedimentation and solid particle control. During the drilling process, the drilling fluid must not only have the function of cooling and lubricating the drill bit, but also have a certain load-bearing capacity and the ability to transport cuttings. The addition of micro glass beads can improve the rheology and suspension properties of the drilling fluid, so that the cuttings can be better suspended in the drilling fluid, thereby preventing the deposition of cuttings and avoiding drilling fluid blockage. The addition of these tiny particles can effectively improve the stability of drilling fluids in high temperature and high pressure environments, and reduce the blockage or crystallization caused by insufficient rheology during drilling.
Increase density and reduce sedimentation rate
The low density of micro-glass beads enables them to play a balancing role in drilling fluids and adjust the density of drilling fluids. The density of drilling fluids needs to be adjusted according to different geological conditions to ensure that the pressure downhole can be balanced to prevent the well wall from collapsing or the loss of well fluids. The addition of micro-glass beads can appropriately reduce the density of drilling fluids, avoid the high cost caused by overweight drilling fluids, and maintain the necessary fluidity and carrying capacity. In addition, the good dispersion of micro-glass beads in drilling fluids also helps to improve the fluidity of drilling fluids, reduce sedimentation rates, and enhance their stability at high flow rates.
Enhance the inhibition and viscosity control of drilling fluids
Micro-glass beads can also improve the inhibition of drilling fluids by filling and acting as "volume supplements". For example, in some special drilling environments, drilling fluid needs to have the ability to inhibit the hydration and expansion of rock formations to prevent the instability of the formation caused by the hydration effect. The addition of micro glass beads can effectively control the hydration and expansion of rocks and reduce unnecessary mineral reactions.
Used for isolation and plugging in cementing
In cementing operations, micro glass beads are used as plugging materials to help seal poor layers, cracks or other oil and gas leakage paths. The application of micro glass beads in cementing fluid can improve the plugging effect, enhance the curing strength of cement and other materials, and ensure the safety and stability of drilling operations.
Increase oil and gas production
The application of micro glass beads is not limited to improving the performance of the drilling fluid itself, but can also indirectly improve the extraction efficiency and output of oil and gas by improving the efficiency of drilling operations, reducing equipment wear and reducing energy consumption.
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