The hottest technology supports PetroChina Daqing

2022-08-24
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Science and technology support PetroChina: Daqing is "long" and Changqing is "big"

at the end of the year and the beginning of the year, two exciting news came from PetroChina: the crude oil production of Daqing Oilfield in 2011 once again exceeded 40million tons, which is the ninth consecutive year to achieve 40million tons of stable crude oil after 27 years of continuous high and stable crude oil production of 50million tons; Changqing oilfield produced more than 40million tons of oil and gas equivalent for the first time in 2011, and its oil and gas production is expected to exceed 50million tons by 2013, achieving the goal of "Daqing in the west"

"this means that Daqing is becoming 'long' and Changqing is becoming 'big'." A relevant person from the Publicity Department of CNPC told, "Since entering the new century, PetroChina has put forward the oil and gas development strategy of 'hard stability in the East and rapid development in the West' according to the characteristics of China's resource endowment. Based on sustainable development, Daqing Oilfield has put forward the new goal of maintaining high and stable production of more than 40million tons; Changqing Oilfield has put forward the leap forward development goal of building 'western Daqing'. From Daqing to Changqing, the fundamental way for PetroChina to achieve the strategic goal is scientific and technological innovation."

How can Daqing become "longer"

the "Gao 110-geng 39" well of Daqing No.1 oil production plant was originally an old oil well that was forced to shut down in August 1996 due to high water content. One day in 2009, the derrick was erected again here. After taking a series of technical measures such as fracturing, water plugging and injection of chemical agents, this old oil well, which has been closed for 14 years, began to spout oil flow again. At present, the water content is controlled at 91.5%, and the production continues to grow

this is a shot of Daqing Oilfield using tertiary oil recovery technology to improve oil recovery

it is understood that after achieving the miracle of high and stable crude oil production of more than 50million tons for 27 consecutive years, the underground resources of Daqing oil field have decreased significantly since 2002, especially in the "Eleventh Five Year Plan", the water content of the oil field has increased significantly, and only half a ton of oil out of 10 tons of liquid pumped from the ground

production decline is an irresistible natural law of oil fields all over the world; Prolonging the life of oil fields is the primary problem faced by oil companies all over the world. In the face of difficulties, PetroChina Daqing Oilfield has set itself a goal full of challenges - a new round of goals to maintain high and stable production of more than 40million tons

this is an imaginative new goal put forward under the background of continuous development of the oilfield for 50 years, high and stable production of 50million tons for 27 years, and water content of more than 95%. This means that Daqing Petroleum people are not prolonging the "life cycle" of the oilfield, but keeping the "adolescence" of the oilfield

today, when China National Petroleum Corporation (CNPC) received the news that the automatic uniform cooling of samples and constant temperature produced that the crude oil production of Daqing Oilfield in 2011 once again exceeded 40million tons, the world's oil industry has reason to be amazed again, because this is the ninth consecutive year of continuous high and stable crude oil production of Daqing Oilfield after 27 consecutive years of high and stable production of 50million tons

what is the high and stable yield that has lasted for decades? The answer of Daqing Oilfield people is: scientific and technological innovation

it is understood that Daqing Oilfield adheres to sustainable development, takes tertiary oil recovery technology as the core, increases scientific and technological innovation, intensive cultivation, and constantly challenges the exploitation limit. Its "sustainable and stable production and efficient exploration and development technology of more than 40million tons in the late stage of high water cut" won the special prize of the 2010 National Science and technology progress award, which is the third time that Daqing Oilfield won the highest prize of national science and technology progress

How can Changqing become "big"

while trying to promote the stable production and sustainable development of Daqing Oilfield in the East, PetroChina is fully promoting the rapid rise of Changqing Oilfield in the west, and proposes to build Changqing Oilfield located in Ordos basin into a strategic goal of "Daqing in the west"

data show that in the mid-1980s, the annual output of crude oil in Changqing Oilfield was less than 2million tons. In 2003, although its oil and gas equivalent exceeded 10million tons, it faced a series of problems, such as insufficient reserve reserves, difficult stable production of old oilfields, and the inability of proved blocks to achieve effective development, and its output hovered at 10million tons of oil and gas equivalent for several consecutive years

why does such a long celebration become Daqing? At that time, many people had doubts. Some experts pointed out that Changqing oilfield belongs to the world's rare "three low" oil and gas fields with low permeability, low pressure and low abundance. If the reservoir of the Middle East reservoir is compared to a high-grade highway, then the reservoir of Changqing reservoir is like a narrow path, and the outflow channel of the reservoir is not smooth. Exploiting oil and gas in such rocks is like "oil extraction on a grindstone" and "wringing water in a dry towel"

"the Chinese petroleum people have the momentum to make a revolution on the grindstone. With this momentum, they continue to increase scientific and technological innovation and overcome one world-class technical problems after another." Ran Xinquan, vice president of PetroChina and general manager of Changqing Oilfield Company, said, for example, innovative fracturing technology, pressing tight oil layers out of cracks, and then using special materials to support the cracks to form artificial pore channels, allowing oil and gas to flow out of closed oil delivery valves, so that ultra-low permeability reservoirs can be developed on a large scale...

in this way, in the eyes of the world's surprise, Changqing Oilfield has walked out of a "three low" oil and gas field scientific development The road of rapid development. Since 2006, its oil and gas production has increased by 5million tons per year. To 200 pairs of aluminum alloy structure, the comprehensive performance and reducing effect have also put forward higher and higher requirements. In 9 years, the oil and gas production has reached 30million tons, becoming the second largest oil and gas field in China after Daqing. In 2011, its oil and gas equivalent exceeded 40million tons for the first time. Changqing Oilfield has not only achieved a leap forward growth in oil and gas production, but its tight rock Sulige gas field has become the main gas field supplying natural gas consumption areas in eastern China, such as Beijing, Tianjin, Hebei, etc

PetroChina officials told that at this rate of development, the oil and gas production of Changqing Oilfield is expected to exceed 50million tons by 2013, and PetroChina's goal of building "Daqing in the west" will be achieved

"two celebrations" miracle shook the world

in the interview, it was learned that Daqing has become "long" and Changqing has become "big", and the development and evolution of the two main oil fields under PetroChina with the words "grounding" or grounding marks have attracted widespread attention in the world oil industry

in June, 2011, the board of directors of the world oil giant shell oil company was held in China. On June 21, the chairman of the board of directors of shell, yoma Ollila, led a group of 15 members of the board of directors and executive committee, including its president of global projects and technology, to Daqing to visit Daqing Oilfield. Previously, in 2007, an international oil and gas exploration and development conference, which brought together global project level oil experts, was held in Houston, the United States. When representatives from PetroChina Daqing Oilfield entered the conference hall, all the experts stood up and applauded warmly...

Why are world-class oil experts and companies full of respect for PetroChina Daqing Oilfield? A foreign expert gave the answer "because Daqing Oilfield has achieved high and stable production for decades, creating a miracle in the history of oil exploration and development in the world."

at the same time, the development of Changqing Oilfield has also caused countless exclamations and admiration in the international oil and gas field

it is understood that the international petroleum industry uses "millidarcy" as the basic unit to reflect permeability, and oil fields with permeability less than 50 millidarcy are called low permeability oil fields. 70% of the reservoir permeability in Changqing Oilfield is less than 1 millidarcy. In particular, Changqing Sulige gas field has the characteristics of "low permeability, low pressure and low abundance". Most of the strata are dense blocks. According to the geological theory of the 1980s in the United States, Sulige is a gas field that cannot be exploited. Moreover, from 1999 to 2005, oil and gas exploration experts from abroad have visited the Ordos Basin three times and repeatedly determined that Changqing Oilfield is a "marginal oil and gas field without development value"

nowadays, the 1-3 millidarcy strata, even the 1 millidarcy and below strata, which others seem impossible to develop, have been developed by Chinese petroleum people in Changqing Oilfield. According to the data, it took 33 years for the oil and gas equivalent of Changqing Oilfield to jump to 10million tons, 4 years to jump to 20million tons, and 2 years to jump to 30million tons and 40million tons respectively

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