Slotted casing, also known as slotted pipe or slotted liner, is a specialized type of casing used in well construction for oil and gas, water wells, and various underground applications. It is designed with openings or slots cut into the pipe wall to allow the flow of fluids and gases between the exterior and interior of the casing. Today, Union Steel Industry will talk about several important functions of slotted casing in well construction.
1. Filtration:
Slotted casing is often used in water wells to filter out sand and other fine particles while allowing water to enter the well. The slots are strategically positioned to prevent the ingress of undesirable materials, ensuring clean and clear water.
2. Screening:
In the oil and gas industry, slotted casing is used to act as a screen in production wells. The slots are sized to prevent the entry of sand and other solids from the surrounding reservoir while enabling the flow of oil or gas.
3. Sand Control:
Slotted casing is crucial in controlling sand production in reservoirs where sand can be a problem. It helps to keep sand in the formation while allowing hydrocarbons to flow through the slots.
4. Gravel Packing:
In some instances, slotted casing is used in combination with gravel packing to enhance sand control. Gravel is placed between the casing and the formation, and the slots allow for the controlled movement of fluids and hydrocarbons.
5. Fluid Injection:
Slotted casing can be used for the injection of fluids, such as water or chemicals, into the formation. The slots facilitate the distribution of these fluids while maintaining well integrity.
6. Acidizing and Stimulation:
In well intervention and maintenance, slotted casing is employed to carry out treatments like acidizing or hydraulic fracturing, allowing the chemicals or fluids to reach specific zones.
Union Steel Industry's slotted casings are manufactured from high-quality materials that offer high strength and flexibility to perform well in harsh conditions. Our products have competitive prices and lower maintenance costs, making them your best choice. If you would like more details about Union Steel Industry’s grooved casing, please click here to contact us today!