The upper completion refers to all components from the bottom of the production tubing upwards. Proper design of this completion string is essential to ensure the well can flow properly given the reservoir conditions and to permit any operations as are deemed necessary for enhancing production and safety.
Variously known as the Fourth of July and Independence Day, July 4th has been a federal holiday in the United States since 1941, but the tradition of Independence Day celebrations goes back to the 18th century and the American Revolution (1775-83).
For other related material, see Fourth of July (disambiguation). Independence Day of the United States, also referred to as the Fourth of July or July Fourth in the U.S., is a federal holiday commemorating the adoption of the Declaration of Independence 240 years ago in 1776 on July 4 by the Continental Congress.