## 4 Corrosion Protection Measures
### Anticrovise Coating
#### 4.1.1 Organic Anti-Corrosion Coating
The huge landslide disaster in Ecuador in 1983 caused damage to pipelines within 4 km of the explosion. In 1995 and 1996, three landslides occurred in the Northwest pipeline in the United States, resulting in pipeline fracture accidents. In 2002, the South American Nor Andino pipeline was cut off for 90 days due to a landslide disaster [90]. In addition, similar disasters occur frequently in southwest China. Take the Guizhou section of the China-Myanmar oil and gas pipeline as an example. The terrain along its route is highly undulating, the geomorphology is complex, and a variety of geologic hazards have developed under such conditions [91]. For example, active land structures and concentrated rainfall easily lead to landslides, mudslides, and other disasters [92]. Therefore, as the first barrier to protect the pipeline, the organic coating of the pipeline must have a certain hardness, adhesion, impact resistance, or bending resistance in addition to corrosion resistance. Laboratories often carry out different testing experiments on anti-corrosive coatings of different materials; for example, Tekkanat B tested the environmental cracking resistance of the 3 LPE organic anticorrosive coating, which is prone to cracking; [PERSON] [93] used a new method to obtain the concentration conductivity and porosity of shale by fitting the experimental results. The radial permeability of shale was deduced by using the relationship between them. Moreover, [PERSON] studied the landslide early warning model under the influence of multiple factors. The United States has made considerable progress in shaping the mechanical damage on the surface of pipelines. However, a lot of work needs to be done to improve the accuracy of these technologies in inhibiting the adverse effects of microstructures on pipelines, especially in terms of density variation characteristics and plastic deformation, etc. In the past, petroleum asphalt or coal tar were commonly used as the main anti-corrosion coating materials for pipelines, while 3 PE (three-layer polyethylene) or polypropylene, single-layer or double-layer epoxy powder, heat shrinkable tape/shrink tube, etc., are the modern anti-corrosion materials that are commonly used. However, due to the restrictions of the construction performance, equipment, and environment of the anticorrosive coating, the fields of application of these anticorrosive materials also have their own specialization. This paper takes common organic anticorrosive coatings in engineering as an example and compares them according to their performance, advantages, and disadvantages, as well as their areas of specialization [94; 95]. In addition to the anti-corrosion materials mentioned above, there are also anti-corrosion products made from these coatings; for example, polyethylene, coal tar, petroleum asphalt, and paraffin base can be made into anti-corrosion adhesive tapes. They use cold winding (polyethylene anti-corrosion tape) or hot winding (coal tar, petroleum asphalt anti-corrosion tape) to form an anti-corrosion layer on steel pipelines. In the 1960s, Daqing Oil Field, Changchun Institute of Applied Chemistry, and Shanghai No. 3 Factory of Pen Parts collaborated in the production of anti-corrosion tape, which was appraised by the Ministry of Petroleum and Chemical Industry in 1977. As early as the last century, anti-corrosion tape was considered one of the most cost-effective anti-corrosion measures for pipelines in the United States [96], and it has developed rapidly since then. During the recent overhaul of northeast oil pipelines, anti-corrosion tape was one of the most popular anti-corrosion construction technologies.