This article**: People's Daily Online-Sichuan Channel.
Foreword. 2023 is the first year for the full implementation of the spirit of the 20th National Congress of the Communist Party of China, and it is also an important year for promoting the implementation of the 14th Five-Year Plan. At the important juncture when the 2023 timeline is about to end, PetroChina Southwest Oil and Gas Field Company (hereinafter referred to as "Southwest Oil and Gas Field") focuses on structural adjustment, The three main lines of transformation and upgrading and high-quality development, implementing the new development concept, making every effort to ensure national energy security, working hard, full of power, and producing at full speed, achieved new results and new progress in the annual output of natural gas exceeding 40 billion cubic meters at 9 a.m. on December 14, and successfully built the first atmospheric area with an annual output of 40 billion cubic meters in southwest China, further stabilizing the "energy rice bowl".
In today's oil and gas exploration, oil and gas development, gas field supply and other good news, the southwest oil and gas field has achieved a great development of more than 40 billion yuan for the country, Sichuan, and itselfAfter crossing 40 billion, how will the next step of high quality be opened?And how will it be upgraded and advanced strongly?
From now on, the Sichuan Channel of People's Daily Online will launch a series of in-depth observations to decode the effectiveness, power, vitality and potential behind the 40 billion oil and gas fields in Southwest China, so stay tuned.
At this moment, under the warm winter sun, the land of Bashu is tumbling with a heat wave that accelerates production. At 9 o'clock on December 14, the annual natural gas output of PetroChina Southwest Oil and Gas Field Company exceeded 40 billion cubic meters, reaching 40000.1 billion cubic meters, successfully built the first atmospheric area with an annual output of 40 billion cubic meters in southwest China. This is another milestone development that has crossed the 10 billion mark after the annual production of natural gas exceeded 30 billion cubic meters in 2020.
Rather than saying that 40 billion is a goal, it is better to see it as a new starting point for the southwest oil and gas fields to be poised for development. Behind the 40 billion yuan, the Southwest Oil and Gas Field has realized from regional natural gas exploration to national natural gas technical support, and then stepped into the ranks of 10 million ton large oil and gas fields. From the efficient discovery of 2 trillion reserves of the atmospheric area to the construction of a 30 million ton large oil and gas field, and then to the leap development of the annual natural gas production exceeding 40 billion cubic meters, it has also laid a good foundation for promoting the high-quality development of the southwest oil and gas field and accumulated strong potential energy.
The question of power after 40 billion.
40 billion, not just a number. The Sichuan Basin spans Sichuan and Chongqing provinces and cities, covering an area of 180,000 square kilometers, and is the third largest onshore oil and gas basin in China. According to the national "Fourth Oil and Gas Resources Evaluation", the natural gas resources in the Sichuan Basin are 3994 trillion cubic meters, conventional gas and shale gas resources rank first in the country.
Keep the love and walk towards the light. Photo by Li Yu.
In the eyes of the outside world, it is logical that the southwest oil and gas fields that have been deeply cultivated in the Sichuan Basin for a long time have crossed 40 billion. But this "one step" leap is not easy.
It is often said that "it is easy to go to heaven, but it is difficult to enter the earth". The Sichuan Basin is a large-scale superimposed basin formed by multi-stage tectonic movements, with the characteristics of "full basin gas", and there are 30 sets of industrial oil and gas reservoirs discovered at present, making it the third largest onshore oil and gas basin in China. However, it is not difficult to see from the development history of the Southwest oil and gas field for more than 60 years that the Sichuan Basin is also an oil-bearing basin with complex and diverse geological characteristics and great difficulty in exploration and development.
The whole Sichuan Basin has the characteristics of many layers, types, fields, low porosity, low permeability and low abundance. At present, there are 30 industrial oil and gas reservoirs in the Sichuan Basin, 26 conventional and tight oil and gas producing layers (19 marine facies), 3 shale gas producing layers and 1 volcanic rockIt has a variety of gas reservoir types (structure, lithology, composite) and reservoir types (pore type, fracture-vuggy type, fracture type).There are 6 sets of marine accumulation assemblages and 3 sets of continental accumulation assemblages, and conventional gas, tight gas, shale gas and coalbed methane are all distributed. The characteristics of "three more" determine that it is difficult to understand gas reservoirs, difficult to develop efficiently and efficiently, and there are many twists and turns and uncertainties in the process of oil and gas exploration and development. However, the characteristics of "three lows" determine that most of the resources are of low grade, and it is difficult to use reserves and increase the production of single wells, so it is necessary to break through the bottleneck of stimulation technology and effectively reduce investment costs in order to achieve scale benefit development of gas reservoirs.
It is understood that the surface conditions of the Sichuan Basin are complex and the human geographical environment is special. The landform is mainly hilly and mountainous, densely populated, dotted with towns, developed industry and agriculture, developed forest and water system, special and sensitive geographical environment, both the prosperity of Tianfu and the difficulty of Shu Road, and the ground conditions have great constraints on oil and gas exploration and development activities.
So, how to rise to the challenge?How to achieve fast and good development?Through intensive cultivation in production, excellence in technology, and meticulous craftsmanship in management, Southwest Oil and Gas Field has efficiently promoted conventional gas, large-scale development of shale gas, and accelerated the development of tight gas, ensuring the completion of the work goals and tasks in 2023 (the output is expected to reach 42 billion cubic meters this year), winning the initiative for the decisive 50 billion yuan, and making every effort to accelerate high-quality and stable production.
Among them, in order to achieve the goal of producing 40 billion cubic meters, the Southwest Oil and Gas Field has further shortened the drilling and completion cycle, greatly increased the production of a single well, and fully met the standard of well engineering quality by creating two hard-core technical tools of "drilling speed" and "fracturing production".
According to statistics, in January and October this year, the drilling cycle of conventional gas development wells in the southwest oil and gas field was shortened by 19 percent year-on-year15%, the drilling cycle of deep shale gas was shortened by 15% year-on-year33%。The average single-layer oil test cycle of conventional gas exploration wells decreased by 8 percent year-on-year33%, the average single-layer oil test cycle of conventional gas development wells decreased by 25 year-on-year40%。
Looking at the compact timeline of the annual scale increase and production of the Southwest oil and gas field, the top and bottom work together to spell out this report card spanning 40 billion yuan, which has considerable weight in terms of speed, volume, quality and contribution.
The question of the effectiveness of 40 billion years.
Spanning 40 billion, how can the Southwest Oil and Gas Field combine the effective improvement of "quality" with the reasonable growth of "quantity"?This is the question of effectiveness that the Southwest Oil and Gas Field will face in 2023.
In terms of speed, Southwest Oil and Gas Field Company built China's first 10 billion gas area in 2004, which took 46 yearsIn 2017, the output exceeded 20 billion, which lasted 13 years;In 2020, a 30 billion atmospheric area will be built, and it will take only 3 years;Now, the company has once again crossed the 10 billion mark, and once again ran out to accelerate the acceleration of production.
Jiange Natural Gas Purification Plant. Photo by Liu Lang.
In terms of volume, at present, CNPC is making every effort to build a world-class comprehensive international energy company with an everlasting foundation, and strive to build a "southwest growth pole". With the goal of "winning 50 billion yuan in 2025", Southwest Oil and Gas Field Company is determined to find a big scene and build an atmospheric field, fully complete the layout of the whole industrial chain of natural gas production, transportation, storage and marketing, and is committed to developing into a "southwest hub" of China's energy strategic channel. Today, after the annual natural gas production exceeded 30 billion cubic meters in 2020, the Southwest Oil and Gas Field has achieved another milestone leap, officially building the first atmospheric area with an annual output of 40 billion cubic meters in southwest China. It is estimated that by the end of 2023, the annual natural gas production of the Southwest Oil and Gas Field Company will reach 42 billion cubic meters, a year-on-year increase of 96%, which is expected to jump to become the third largest oil and gas field in China.
From the perspective of quality, the Southwest Oil and Gas Field focuses on the Permian, Penglai gas area, shale gas and tight gas in the Sichuan Basin, and has made major breakthroughs and discoveries in the western side of the rift trough and the two Triassic reef flats. For the first time, high-yield industrial gas flow was drilled in the Cambrian Xiaozhusi Formation, opening up a new position for large-scale shale gas reserves and productionFocusing on the three major areas of conventional gas, shale gas and tight gas, natural gas production continued to rise. This year, more than 340 new wells have been put into operation in the Southwest Oil and Gas Field, with an annual production capacity of more than 10 billion cubic meters, and more than 30 high-yield gas wells of one million cubic meters have been drilled.
In terms of efficiency, 40 billion cubic meters is expected to account for about one-fifth of the country's natural gas production in 2023.
1. If 11% of the country's natural gas consumption is converted into heat, it is equivalent to the total heat generated by the power generation of the four Three Gorges power stations during the same period. Not only that, the development of the natural gas industry has also continuously improved the energy structure of Sichuan and Chongqing, driven the rapid development of the whole natural gas industry chain, and become an important pillar of local economic development. The high-speed production of Southwest Oil and Gas Field Company has provided strong support for the construction of a 100-billion-square-meter natural gas production capacity base in Sichuan and Chongqing, a strong province with a trillion-level green chemical industry, and the development of gas-fired power projects under the background of power shortage. According to data, 40 billion cubic meters of natural gas can drive regional GDP growth by 344 billion yuan, create about 1.8 million jobs in the whole industry chain, and contribute about 3% to regional employment, with a significant increase in economic value and social benefits.
Develop a gas field to drive the economy of one side and benefit the people of one side." Today, the natural gas produced by the Southwest Oil and Gas Field every year is continuously sent south to cities along the Yangtze River and north to North China, providing energy support for the implementation of major national strategies such as the coordinated development of Beijing-Tianjin-Hebei, the development of the western region, and the development of the Yangtze River Economic Belt. At the same time, the Southwest Oil & Gas Field Company has also undertaken 25% of the country's natural gas peak shaving tasks, and has played an important role in coping with major emergencies in the north, such as winter cold waves, abnormal gas shortages in Central Asia, and power shortages in extreme weather.
The question of the potential of the post-40 billion generation.
Those who observe the situation are wise, and those who control the situation win. After crossing 40 billion, how should the southwest oil and gas fields maintain their development potential and continue to make more contributions to ensuring national energy security?
We will further emancipate our minds, adhere to innovation-driven, and comprehensively embark on a new journey of high-quality production of 50 billion yuan. He Xiao, executive director and secretary of the Party Committee of Southwest Oil and Gas Field Company, said that he will resolutely be a "practitioner" of energy security and supply, a "leader" of the development of the natural gas industry, a "demonstrator" of economic value creation, and a "driver" of fulfilling social responsibilities.
National Shale Gas Demonstration Zone Ning 201 Central Station. Photo by Jing Yuxiang.
Standing on a new level, the Southwest Oil and Gas Field has continued to answer questions. In terms of shale gas, we will vigorously promote the shale gas revolution, establish three revolutionary models of shale gas technology, management and organization mode, coordinate the implementation of geological engineering and economic integration, and strive to improve the eur of gas wells, reduce the cost of discovery, and efficiently obtain the best economic benefitsIn addition, we will deploy technical research, old well maintenance, capacity construction, pilot test and other related work in advance in 2024 to fully ensure the output contribution in 2025.
In terms of conventional gas, the Southwest Oil and Gas Field will speed up the deployment of the Gaoshiti block in the Anyue Gas Field, do a good job in the production capacity construction of the Denger gas reservoir in the Penglai Gas Field, promote the construction of the drilling test and purification plant of the high-sulfur Dukou River-Qilibei in northeast Sichuan, do a good job in the optimization and rolling exploration and development of deep water control in western Sichuan, and evaluate the production and ...... of efficient and stable production in the Santai-Yanting, Jianyang, Zitong and other blocks of the Tianfu Gas Field
At the same time, the Southwest Oil and Gas Field will continue to innovate and continue to improve its development technology and management level. Pay close attention to key core technology research, and continue to improve core competitiveness;Pay close attention to the development of digital transformation and continue to build industrial competitive advantages;Pay close attention to the management of basic work for development, and continue to consolidate the foundation for high-quality development;Pay close attention to quality, safety, environmental protection and health, and continue to promote clean, low-carbon, safe and efficient use of energy.
Crossing 40 billion, and then to a new level. Today, a series of innovative measures and the blessing of advanced technology have activated a high-quality development path with the characteristics of southwest oil and gas fields. At present, the new journey of 50 billion yuan of development and the new clarion call to ensure national energy security have been sounded again, anchoring higher quality development, and the southwest oil and gas field will set sail again and achieve steady and far-reaching results. (Housing Payment).