The oil industry is an industry that uses a large number of oil pipes. Oil pipes
play an important role in the oil industry:
1. The oil pipe has a large amount of consumption and spends a lot of money, and has great potential for saving expenses and reducing costs. The consumption of oil well pipes can be calculated based on the annual drilling scale. According to the specific conditions of China, 62kg of oil well pipe is required for every 1m drilled, including 48kg casing and 10kg oil pipe. Drill pipe 3kg, drill collar 0.5kg;
2. The mechanics and environmental behavior of petroleum pipelines have an important impact on the adoption of advanced technologies and increased production and efficiency in the petroleum industry;
3. The loss of oil pipe failure is huge, and its safety, reliability and service life are of great importance to the petroleum industry.
Different types of casing used in oil extraction: Surface oil casing protects the well from contamination by shallow water and shallow gas, supports wellhead equipment and maintains the weight of the other layers of the casing. The technical oil casing separates the pressure at different levels so that the drilling fluid is properly circulated and the production casing is protected. In order to install the anti-burst device, the leakage preventing device and the tail pipe in the drilling. Oil-in-oil casings export oil and gas from the subsurface storage. Used to protect the well and stratify the drilling mud. When producing oil casings, the outer diameter is usually 114.3 mm to 508 mm.