专业英语复习材料.doc

第一次作业： Briefly answer the following questions. What does well stream consist of? A：Well fluids are often a complex mixture of liquid hydrocarbons,gas, and some impurities. How could produced water be handled? A:(1) injection into underground salt water bearing formations, (2) injection into oil bearing underground reservoirs from which the oil and water is produced and (3) disposal of carefully treated water into the ocean from offshore production platforms. Why do welded tanks need to be internally coated？ A:Welded tanks can be internally coated to protect them from corrosion. （4）Why should produced water be carefully treated before being disposed into the ocean from offshore production platforms? A:Because produced water may cause pollution problems if it is not carefully treated. 2.Could you give a definition to each of the following concepts? （1) separator：The equipment most widely used for the separation of natural gas from liquids. （2）gas plant：It is a plant where natural gas is produced. （3) heat-treater：It is the equipment uses thermal，gravity, and sometimes chemical and/or electrical methods to break emulsions. （4) storage tank：It is the equipment used to store clean oil or pipeline oil. tank battery ：It is the system of separation, treating and storage facilities. produced water：It is the water that is produced from oil and gas well. Well fluids or well stream :Well fluids are often a complex mixture of liquid hydrocarbons，gas, and some impurities. Gas hydrates: Gas hydrates are ice like crystalline compounds formed in natural gas in the presence of free water under conditions of high pressure and turbulence. Illustrate some equipments (2or3) used in the process of oil . A:separators , heater-treaters , gun barrel. 第二次作业 Briefly answer the following questions. What are necessary for the formation of a stable emulsion? A: Three conditions are necessary for the formation of a stable emulsion. (1)The liquids must be immiscible. (2)There