Gold Mine Wells vs Oil Wells

Gold mine well in Russia. This gold well has a depth of 4 km. The width of the well is 0.8 m. Despite the impressive size of the well, gold mining there is limited by the person's physical capabilities. If lowered further, it can be dangerous for a person because of the high load on the body associated with high temperature, humidity, logistics and the possibility of seismic activity. Fortunately for the oil industry, it does not have such limitations associated with the physical condition of a person, so oil companies can drill deeper. We represent the deepest wells in the world.

1. Chayvo Z-44 (Russia, 13 km) The world's deepest oil well, known as the Chayvo Z-44, goes to a depth of about 13 km, equivalent to 15 heights of Burj Khalifa, the tallest skyscraper in the world. This depth is also twice the record altitude in a balloon. A total of 2.3 billion barrels of oil is expected to be produced in the wells on this shelf. Before Chayvo well Z-44 well and other similar wells were drilled, the leading position was occupied by the famous Kola superdeep borehole located in the western part of Russia.

2. OP-11 (Russia, 12 345 m) January 2011 was marked by a message from the company Exxon Neftegas that the drilling of the longest well with a large departure from the vertical is nearing completion. OR-11, located on the Odoptu field, also set a record for the length of the horizontal trunk - 11,475 meters.

The perpetrators were able to complete work in just 60 days. The total length of the OP-11 well at the Odoptu field was 12345 meters (7.67 miles), thereby setting a new world record for drilling wells with a large vertical bottom hole (BOV). OR-11 also took first place in the world by the distance between the face and the point of drilling horizontally - 11,475 meters (7.13 miles). ENL Company performed drilling of a record well in just 60 days using the technology of high-speed drilling and integrated drilling quality control developed by ExxonMobil, achieving the highest drilling performance in every foot of the OR-11 well. Drilling_russia3. BD-04A (Qatar, 12 289 m)

In May 2008, a geological exploration well with a length of 12,289 m was drilled by Maersk in Qatar at the Al-Shaheen oil field. The length of the horizontal barrel was 10,902 m. The BD-04A was drilled in just 36 days and used the GSO Rig 127 drilling rig of Transocean for this purpose. Transocean got even more notoriety in April 2010 after the Deepwater Horizon oil platform disaster in the Gulf of Mexico: the company was the operator of this well under a contract with BP.

1. The Kola Superdeep (USSR, 12 262 m) It is listed in the Guinness Book of Records as "the deepest human invasion of the earth's crust." When, in May 1970, a lake with a difficult-to-pronounce name, Vilgiskodeoivainjärvi, began drilling, it was assumed that the well would reach a depth of 15 kilometers. But because of high (up to 230 ° C) temperatures had to collapse.

The well allowed to obtain a number of unique scientific data. In particular, with its help, a two-layer model of the structure of the earth's crust was questioned. At the moment, the Kola well is mothballed.

1. Bertha Rogers (United States, 9583 m) Another ultra-deep well created in the area of ​​the Anadarko oil and gas basin in Oklahoma in 1974. Thanks to the use of the newest equipment and the rejection of core sampling, drilling took only 502 days from Lone Star company and was stopped when sinkers came across a deposit of molten sulfur. Work cost $ 15 million.

2. Baden Unit (United States, 9159 m) Well drilled by Lone Star near Anadarko. Its development began in 1970 and lasted for 545 days. The wellhead was equipped with a blowout preventer, designed for a pressure of 105.5 mPa. In total, 1,700 tons of cement and 150 diamond bits were used for this well. And its full cost cost the company $ 6 million.

3. Hauptbourung (Germany, 9101 m) The famous Kola well made an indelible impression on the European public. Many countries have started to prepare their projects of superdeep wells, but separately it is worth noting the Hauptborgung well, developed from 1990 to 1994 in Germany. Drilling_russiaThe ultra-deep KTB Hauptbourung well was drilled from 1990 to 1994, it was supposed to reach a depth of 12 km, but due to unpredictably high temperatures it was possible to reach only 9.1 km. Due to the openness of drilling and scientific data, good technology and documentation, the super deep KTV well remains one of the most famous in the world.

4. Zistersdorf UT2A (Austria, 8553 m) In 1977, in the area of ​​the Vienna oil and gas basin, where several small oil fields were hidden, a Zistersdorf UT1A well was drilled. When at the depth of 7544 m non-recoverable gas reserves were discovered, the first. 

Source: http://oilpro.com