Technical English language

8.Isothermal storage of liquefied gas.
Isothermal storage of liquefied gas is the most expensive method of storing gas from all of the above. This expensive method of storage is used precisely in conditions of impossibility of other variants of creating another type of storage near large consumers, but the decree on the construction of this type of storage is published only in cases where it is not possible to create another type of storage in the vicinity of large consumers.
The process of storing liquefied natural gas is carried out only in those tanks that have a low temperature and are called isothermal. This creates difficulties, as a consequence of the low storage temperature, low heat of evaporation of LNG. The use of highly effective thermal insulation is the best condition for long-term and qualitative storage of the resource.
A variant of gas storage in the form of hydrates is possible. Stabilization of the treated resource takes place under the action of its holding at the working pressure in accordance with the temperature -10 ° C during the day. The hydrate density is 0.9-1.1 g / cm3, i.e. this slightly exceeds the density of ice (0.917 g / cm3). A ready-made version of the gas from this resource is possible only when it is heated. Storage of such gas occurs directly in gasholders.

9.Pipeline transportation of gas and oil
The transit system is considered one of the largest: it is used when the need arises to quickly outrun a huge amount of hydrocarbons. It is noteworthy that the system functions only in one direction.
The advantages of this method of transportation should include the following:
• high speed delivery to the final destination;
• large geographical coverage of communications;
• possibility of mounting at any distance;
• uninterrupted operation - the work of transport does not depend on weather conditions;
• minimization of gas losses during transportation;
• high degree of automation.
But you should pay attention to the fact that the transportation of natural gas and oil by means of highways allows you to overtake a limited number of products. In addition, there is a decrease in the efficiency of pipelines with the sequential transfer of various hydrocarbon types of raw materials.