Record of ultra-deep oil and gas exploration and development in Tarim Oilfield

This is the deepest onshore Marine carbonate oil field in the world, with oil and gas buried more than 7500 meters deep, which is the largest oil field built at 7500 meters deep and has the best development benefits, and is also a demonstration area for efficient exploration and development of ultra-deep complex gas reservoirs in China. With an area of more than 10,000 square kilometers and oil and gas resources of more than 1 billion tons, Fuman Oilfield is the largest oil exploration discovery in the Tarim Basin in recent 10 years.

"Last year, the Tarim Oilfield completed the expansion of oil and gas processing equipment, connecting 190 oil and gas Wells nearly 160 kilometers east and west of Fuman Oilfield." Li Xuguang, manager of the oil and gas development department of Tarim Oilfield, is a tall young man, dressed in red overalls, "about two-thirds of the time a year is immersed in the field", many years of fighting time in the desert front line let him know the ins and outs of oil exploration and development.

Heaven, sea and earth are the three major feats of human exploration of nature. As one of the important means of "entering the earth", ultra-deep drilling is called "the telescope deep inside the Earth".

In 2002, Academician Zhu Guangya said when inspecting oil fields that it was difficult to go to heaven, but now it seems that it is more difficult to enter the earth.

It is hard to find oil in the "broken dish" and even harder to get it out. Visiting Tarim Oilfield, many people described: "under complex geological conditions, drilling deep and ultra-deep Wells is like fighting daily encounters."

Theoretical feasibility does not mean that the production practice can be smooth all the way. Deep well technology is a difficult drilling engineering problem "rare in the world and unique in China".

This is a struggle against the sinister environment, a contest with technical challenges, but also a spiritual training. Oilmen constantly challenge the limit, break through the forbidden area, and change the "golden rule" of textbooks with exploration, practice and innovation.

At 23:00 on July 15, it was just dark, and Jia Yinglin, manager of the exploration division of Tarim Oilfield, who had finished his busy day's work, stayed up all night talking with reporters.

After retiring, an old leader said to Jia Yinglin in a chat: "Finally don't have to be afraid."

Jia Ying Lin too understand him, one of the responsibilities of the old leader, is to sit on the SUV from a wellhead to another, to guide the solution of various problems, the most afraid of mobile phone ringing at night.

However, the geological conditions of the Tarim Basin are completely different from other basins in the world. After eight periods of tectonic deformation, the geological structure is complex and diverse, and the exploration and development problems of the oil and gas reservoirs are common, such as ultra-deep, ultra-high temperature and ultra-high pressure.

"At first, vertical drilling technology was introduced to the field, but the result was not suitable for the water, and problems kept cropping up." Jia said that the well is not straight, the deep drilling period is long, the casing wear is serious, the drilling process leakage and overflow