At least 200 meters.

Outside the station gas pipeline and the safe distance from the house, "Pipeline Protection Act" Article 30: the built pipeline on both sides of the five meters shall not be new houses and other structures. New pipeline planning and design, is to be divided into regional levels (housing staffing level grading) calculation of thickened pipeline strength to ensure safety, generally with the original distance from the house in more than 200 meters.

According to the "GB50183-2004" specification requirements, natural gas stations in the process pipeline and the safe distance from the house on duty 22.5 meters. GB50183-2004" specification refers to: the Ministry of Construction on the release of "oil and gas engineering design fire code" of the announcement, approved "oil and gas engineering design fire code" for the national standard No. GB50183 2004 since March 1, 2005 onwards.

Expanded Information:

Note:

The use of traditional means of transportation to transport oil is susceptible to a number of factors, both natural and man-made, but the use of pipeline transportation can avoid these problems.

Because pipelines are laid underground, they are much less affected by the natural environment, and oil and gas can be transported continuously. This consistent process greatly improves the efficiency of energy transportation, and the amount of oil and gas transported in a year is unlike anything that could be achieved by traditional transportation methods.

The loss of energy transported by pipeline is very small, and professional tests have shown that the loss of 1 kilometer of crude oil transported by pipeline is one-seventh that of 1 kilometer of crude oil transported by rail.

Baidu Encyclopedia - Pipeline Transportation

Baidu Encyclopedia - Fire Protection Code for Oil and Gas Engineering Design