![]() ![]() However, one theory developed during this time was to have a profound impact on exploration. In fact, most oil until the turn of the twentieth century was in one form or another related to seep identification. Initially, the oil produced was used to provide kerosene for lamps, but the later invention of automobiles drove up demand and ushered in modern methods of oil exploration. Similarly, seeps were recognized and exploited in the Caucasus (Groznyy region of Chechnya), Ploesti in Romania, Digboi in Assam, Sanga Sanga in eastern Borneo and Talara in Peru.Įven Drake's well, the first to intentionally look for oil in the subsurface, was based on direct identification of seeped hydrocarbons at the surface. In Baku, Azerbaijan, there are still gas and oil seeps that are permanently on fire and have been used to light caravanserai since the times of Marco Polo and the Silk Route. They frequently dug shallow pits or horizontal tunnels at seep locations but also, as early as 200 b.c., drilled down as much as 3,500 ft (1,067 m) using rudimentary bamboo poles (making Drake's 69.5 ft over 2,000 years later seem puny by comparison). The Chinese, for example, used oil (mostly bitumen) obtained from seeps in medication, waterproofing, and warfare several thousand years ago. Traditionally, oil exploration was conducted by recognizing seeps of hydrocarbons at the surface. ![]() However, this was only the start of the modern global era of technology-driven advances in exploration. Exploration for hydrocarbons (oil, gas, and condensate) is commonly acknowledged to have begun with the discovery at Oil Creek, Pennsylvania, by "Colonel" Edwin Drake in 1859. ![]()
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