Question 2: However, modern ________ technologies allow for strongly deviated wells which can, given sufficient depth and with the proper tools, actually become horizontal.
Question 5: The well is created by drilling a hole 5 to 36 inches (127.0 mm to 914.4 mm) diameter into the earth with a drilling rig which rotates a ________ with a bit attached.
Question 7: Some sources claim that from the 9th century, oil fields were exploited in the area around modern Baku, ________, to produce naphtha for the petroleum industry.
Question 8: Also, offshore drilling started up at Baku at Bibi-Eibat field near the end of the 19th century, about the same time that the first offshore oil well was drilled in 1896 at the ________ on the California Coast.
Question 10: An oil well is a general term for any boring through the ________'s surface that is designed to find and produce petroleumoilhydrocarbons.