The API casing is mostly made use of for the borehole wall surface assistance in the drilling and also after the conclusion of a well, so as to make certain the smooth operating of the boring process and the regular procedure of the entire oil well after well conclusion. It is mostly made use of in various markets.
Thread and also combining connection are made use of in between the casings. Manufacturing casing: It is made use of to divide the oil, water, or gas layer of various stress from various other strata, so as to form the oil and gas networks. The pipe created within this range is made use of most frequently in oil as well as gas expedition.
According to the function of well cementation and also the feature of casing, the item down right into a well can be mostly divided into the surface area, intermediate, and also manufacturing types.
1. Surface area casing: The setting depth varies from 10s of meters to hundreds of meters. It depends upon different developments.
2. Intermediate casing: It is used for securing the facility development, so about make certain the smooth running of boring. It can separate huge sector lost-circulation area, stressful water layer, significant collapse strata, in addition to non-target layer of oil or gas, and so on
3. Production casing: It is used to divide the gas, water, or oil layer of different stress from various other strata, so regarding create the oil as well as gas stations. This guarantees the long-lasting production as well as satisfies the extraction and also stimulation needs.