An oil pipeline is a pipe for transporting oil, usually a steel pipe. Oil casing wholesale said that it is connected to the growth distance of the pipeline by welding and flange connection devices, valves for opening and closing control and flow regulation. Tubing is commonly used in oil Wells for oil production, natural gas production, water injection and acid pressure. It is divided into flat tubing (NU), thickened tubing (EU) and integral connecting tubing.
Flat tubing means that the end is threaded directly without thickening and has a collar. A thickened pipe means that after the two ends are externally thickened, the threads are threaded together and joined. The integral joint tubing refers to one end passing through the internal thickening part of the external thread of the car, the other end passing through the external thickening part of the internal thread of the car, and the direct connection does not have a collar.
OCTG Chinese meaning special Oil pipeline, it is the abbreviation of English Oil Country Tubular Goods, including refining casing, drilling ring, drilling ring, drilling pipe, short joint and so on.
It is understood that the main functions of oil pipelines are as follows:
1. steam injection: in the process of heavy oil thermal recovery, thermal insulation tubing should be used to inject steam into the well.
- Oil and gas extraction: After the oil and gas well is cemented, the oil pipe is put into the reservoir casing to pump the oil and gas to the surface.
- Water injection: When the downhole pressure is insufficient, water is injected into the well through the tubing.
- Acidizing fracturing: In the late drilling period or in order to improve the production of oil and gas Wells, acidizing fracturing media or curing materials need to be injected into the reservoir. Both the medium and the solidified material are transported by pipe.
