【Major Chemical Equipment Innovations】From 389 to 2022: Domestic 9,000-meter electric drill rigs helped set a record for the deepest onshore gas well at 9,010 meters
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The last edit to this post was made by Desert Fish on 2022-6-24 at 08:53. Today (June 23), CNPC announced that the Shuangyu 001-H6 well, located in the Sichuan Basin, has reached a drilling depth of 9,010 meters, setting a new record for the deepest gas well on China’s continental territory and marking another advancement in the country’s capabilities in drilling ultra-deep wells. Well Shuoyu 001-H6 is located in Guangyuan City, Sichuan Province, and is an ultra-deep, ultra-high-temperature, and ultra-high-pressure horizontal well. The well temperature exceeds 180 degrees Celsius, the formation pressure is over 130 megapascals, and the hydrogen sulfide concentration is 6 grams per cubic meter.
Constructing ultra-deep wells is a world-class challenge. First, it is necessary to accurately determine the location of reservoirs that are buried several meters deep beneath the ground, several kilometers away. At the same time, it is essential to control the drill bit as it moves down from the surface through various drilling tools to a depth of 9 kilometers. Using a drill bit with a diameter of 149.2 millimeters to navigate along the reservoirs is no less difficult than trying to thread a needle from a distance of 100 meters. By utilizing domestically developed 9,000-meter ultra-deep electric drilling rigs and core technologies and equipment such as precise pressure control throughout the drilling and completion processes, CNPC has achieved significant breakthroughs in the field of ultra-deep oil and gas exploration, which is of great importance for expanding the oil and gas-bearing areas in oil fields and searching for deep natural gas resources.