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Zhongyuan Oilfield is located at the junction of Henan and Shandong provinces, with the central area in Puyang City, Henan Province. The headquarters living base is located in the east of Puyang city. The living bases of secondary units are located in Hualong District, Puyang County, qingfeng county and Fanxian County of Puyang City, lankao county of Kaifeng City, Shenxian County of Liaocheng City and Dongming County of Heze City. Among them, Lankao No.3 Drilling Company has the largest living base with about 20,000 residents. It is an important oil and gas production base in eastern China. 1975 started large-scale exploration, and 1979 was officially put into development. Its geological structure is a part of the Bohai Bay subsidence zone, and it is a basin with rift characteristics formed by geological faults, which is called Dongpu Depression in geology. The basin starts from Shenxian in the north and reaches Lankao in the south, with a northeast-southwest trend and an area of about 5,300 square kilometers. From the geological map, it looks like an oblique pipa. Dongpu Depression is a major development zone, spanning six cities in Henan and Shandong provinces 12 counties, with an area of 5,300 square kilometers. In addition to Dongpu Depression, there are three exploration areas in China, namely Baiyinchagan in Inner Mongolia, Yili in Xinjiang and Minhe in Qinghai, with a registered geological survey area of 69,900 square kilometers and a registered prospecting area of 1.76 million square kilometers. By the end of 1999,

Accumulated proven petroleum geological reserves are 485 million tons and natural gas geological reserves are 654.38+0.8 billion cubic meters; The crude oil output is 928 1 10,000 tons, the natural gas output is 1.8 1 100 million cubic meters, and the commodity gas output is 91.90 million cubic meters. The total industrial output value is 55 1.5 billion yuan, and various taxes and fees are paid 5.2 billion yuan. The annual production capacity of crude oil and natural gas is 3.75 million tons and 654.38+0.2 billion cubic meters respectively. The original value of fixed assets is 65.438+0.76 billion yuan, the net value is 56.5438+0 billion yuan, and there are 35,000 employees.

As early as the mid-1950s, petroleum and geological departments began to explore this treasure land, and used geophysical methods such as gravity, magnetic force and electrical method to conduct geological surveys. It took more than ten years to find out the characteristics of regional geological structure. Since then, Shengli Oilfield, Petroleum Geophysical Exploration Bureau and Henan Oilfield have successively carried out seismic survey and drilling work here. On September 7th, 1975, Pushen 1 well located in Liuwen Township, Puyang County gushed out industrial oil flow, which started the battle of exploration and development of Zhongyuan Oilfield.

Pushan 1 blowout oil is another major breakthrough in oil exploration in eastern China. The Ministry of Petroleum immediately decided to mobilize forces from Shengli Oilfield, Henan Oilfield, Petroleum Geophysical Bureau and other units. 1975, 10 In June, Dongpu Petroleum Exploration and Combat Command was established, which belongs to Shengli Oilfield. 1978 was renamed Dongpu Petroleum Combat Command in June. After more than three years of exploration, a considerable amount of petroleum geological reserves have been proved, which has prepared the conditions for large-scale development of oil fields. On July 1979 and 1, Wenzhong Oilfield, the first oil field in China crude oil producing area, was put into production, producing 230,000 tons of crude oil that year. 198 1 August, Dongpu Petroleum Campaign Command changed its affiliation and became an independent petroleum enterprise under the dual leadership of the Ministry of Petroleum and Henan Province. /kloc-0 changed its name to Zhongyuan Petroleum Exploration Bureau in March, 1982.

After the establishment of Zhongyuan Oilfield Exploration Bureau, it adhered to the principle of paying equal attention to exploration and development, and the proven petroleum geological reserves increased greatly, and the production scale expanded year by year. Liuwen, Pucheng, Wenmingzhai, Wennan, Huxiang, Machang and other 14 oil and gas fields have been discovered in Dongpu sag with an area of 5,300 square kilometers, ranking among the national oil fields in one fell swoop.

The exploration and development achievements of Zhongyuan Oilfield are the victory of China oil workers' enterprising spirit. In the early stage of exploration and development, countless people gave up comfortable working environment and living conditions, preferring to sleep in tents and eat dry food in this vast wasteland. Day after day, year after year, they associate with steel and sand. After 20 years of dust collection, it's a long way to go in Xiu Yuan. Heroic oil builders built historical monuments in the Central Plains with their own hands and made great contributions to the modernization of the motherland.

Since the development and construction of Zhongyuan Oilfield, it has experienced the development stages of the Sixth Five-Year Plan and the Seventh Five-Year Plan. Especially since 1983, in view of the fact that oil and gas resources are abundant, but the geological structure is complex and development is difficult, the oilfield has launched a massive "three-year scientific and technological battle" and solved a number of major technical problems. The average annual crude oil output increased by1000000 tons, reaching 7.22 million tons in 1988, and remained at 63438+0988 for the next two years.

After entering the Eighth Five-Year Plan, during the transition from planned economy to market economy, some deep-seated contradictions seriously restricted the development of oil fields. Faced with the contradictions such as insufficient reserves, difficult development, heavy debts and excessive personnel, Zhongyuan Oilfield adheres to the principle of mutual promotion of reform and development. On the one hand, we should conscientiously implement the strategic policy of "leading oil and gas, developing through science and technology, and developing on the basis of merit"; On the one hand, according to the overall reform requirements of the country's "three changes and one strength", with the goal of transforming the operating mechanism and enhancing the market competitiveness, the traditional operating mode that restricts the development of productive forces within enterprises has been comprehensively, forcefully and quickly reformed, and a management system and operating mechanism adapted to the needs of market competition have been established, forming a new pattern of production specialization, management systematization, service regionalization and marketization. The market competitiveness and anti-risk ability of enterprises have been further enhanced, and the production and operation conditions have improved year by year. 1997 realized a profit of 510.8 million yuan, which was listed as one of the top ten advanced models of state-owned enterprises by the Propaganda Department of the CPC and the State Economic and Trade Commission. In the next two years, although great changes have taken place in the external environment and various factors to reduce income and increase expenditure have increased, it still maintains the momentum of profitability. Zhongyuan Oilfield has implemented a series of reform and development measures in recent years, which have been fully affirmed by the leaders of the country, Henan Province and China Petroleum and Petrochemical Group Company. The State Council leaders Zhu Rongji, Zou Jiahua and Wu Bangguo all gave important instructions on the reform and development of the oilfield.

With the gradual deepening of oilfield exploration and development, a series of exploration and development technologies adapted to the geological characteristics of Zhongyuan Oilfield have been established one after another. Fine exploration technology for complex fault-block reservoirs, contiguous 3D seismic processing and interpretation technology, complex fault-block oilfield development technology, coalbed methane exploration and development technology, sandstone gas field efficient development technology, well condition prevention and treatment technology, oil layer reconstruction technology, remaining oil distribution research and potential tapping technology, deep pumping supporting technology, gas lift oil production supporting technology, deep well fracturing supporting technology, oil and gas exploration and development economic evaluation and oilfield production anti-corrosion supporting technology have provided powerful breakthroughs for exploration and oilfield stable production.

The exploration and development achievements of Zhongyuan Oilfield are the achievements of modern science and technology. Over the past 20 years, Zhongyuan Oilfield has attached great importance to science and technology and recruited talents. In particular, 1983 has been approved by the State Council, and it has carried out a three-year technical research on production and construction, which has brought oilfield science and technology to a new level.

Zhongyuan Oilfield has many exploration areas, a wide range, a large resource background and a very broad exploration prospect. According to the results of secondary resource evaluation, the remaining oil and natural gas resources in Dongpu Depression are 677 million tons and 246.3 million cubic meters, respectively, and the proven degree is only 4 1.7% and 29 1%, so the exploration potential is huge. Through the deep tapping potential of old oil fields, rolling reserves and breakthroughs in new exploration fields, oil field development also shows good prospects. In the next three years, the output of crude oil and natural gas can be stabilized at 3.5 million tons and 654.38+0.2 billion cubic meters respectively. In 2004, with the popularization and application of tertiary oil recovery technology and the development of new exploration fields, crude oil output will gradually pick up.

With the gradual deepening of the reorganization and restructuring of the group company and the establishment and improvement of the modern enterprise system, Zhongyuan Oilfield will further enrich the technical means of exploration and development under the unified leadership of the group company, intensify its work, and strive to achieve breakthroughs in oilfield exploration and stable and increased production; Continue to implement the low-cost strategy, maximize profit space, continuously enhance market competitiveness, and achieve sustained and stable development.

Time flies and things change. After more than 20 years' efforts, Zhongyuan Oilfield has developed into a geological exploration, oil refining, oil refining and petrochemical industry, providing engineering and technical services including geophysical exploration, drilling, mud, cementing, logging, oil testing, completion, workover, operation, acidification, fracturing, oil and gas gathering and transportation, scientific research and design, ground engineering construction, etc., and also engaging in labor export and import and export trade.

She built four oil and gas fields in Dongpu Depression, including Liuwen, Pucheng and Huzhuangji, with an annual output of 4 million tons of crude oil and 654.38+0.2 billion cubic meters of natural gas. It has formed an oil and gas production and petrochemical base integrating oil and gas exploration and development, refining and chemical industry, machinery manufacturing and maintenance. In addition, she has also obtained the exploration and development rights of Yili in Xinjiang, Baiyinchagan in Inner Mongolia and Minhe Basin in Qinghai, obtained the risk exploration and development rights of Sudan, and provided engineering and technical services in Pakistan, Bangladesh, Ethiopia and Indonesia.

She has a professional construction team and scientific research team. It is at the leading level at home and abroad in the exploration and development of complex fault-block oil and gas fields.

She has successfully cooperated with hundreds of companies in more than a dozen countries around the world.

She has completed and is implementing a number of domestic and international engineering projects and enjoys a good reputation.

In recent years, her diversified industries have been growing. Its products sell well in more than ten provinces and cities, and are exported to the United States, Hong Kong, South Asia, Africa and other countries and regions. In order to give full play to the advantages and potential of super-large state-owned enterprises in resources, technology and talents, Zhongyuan Oilfield is willing to attract investment and cooperate with friendly people at home and abroad to further promote the development of diversified industries.

She is willing to cooperate with reputable and powerful domestic and foreign counterparts to jointly create a bright future for the world oil industry!

commercial information

Oil and gas exploration is the leader of Zhongyuan oilfield development, and it is a relatively independent, complete and supporting system in business. After years of exploration practice, Zhongyuan Oilfield has built an exploration team with excellent equipment, advanced technology and excellent work style, specializing in medium and long-term oil and gas exploration strategy research and exploration deployment planning in Zhongyuan Oilfield. Petroleum geological survey, technical and economic evaluation and exploration constituency registration of new basins and exploration areas at home and abroad; Implementation of annual exploration deployment, implementation of exploration projects, calculation of reserves and analysis of investment effect; Provide all-round services for the whole process of exploration projects, such as scheme design, scientific research, popularization and application of new technologies, on-site technical management, project quality supervision and completion acceptance. The exploration system of Zhongyuan Oilfield actively implements the requirements of "three unifications of reserves, output and benefits" of Petrochemical Corporation, adheres to the exploration policy of "based on Dongpu, breaking through the periphery, opening up the Central Plains and opening up the world", and aims to find large reserves and large replacement areas, emancipates the mind, boldly adopts new theories and technologies, increases the exploration intensity of new basins and new fields, and strives to make a major breakthrough in exploration.

Oil and gas development is the pillar industry of Zhongyuan Oilfield. The development system is responsible for rolling exploration and development of oil fields, productivity construction of new and old areas, oil and gas production, development and management of old oil fields, basic geological research, oil production technology research and other tasks. Zhongyuan Oilfield Company has advanced technical equipment and high-quality researchers in fine reservoir description, remaining oil distribution research, and management mode adjustment of tapping potential. In recent years, Zhongyuan Oilfield has increased its proven reserves and produced reserves through tapping the potential of old oilfields and rolling exploration and development, thus realizing the sustained and stable development of the oilfield.

Oil and gas treatment, storage and transportation and public system engineering are the lifeblood of oilfield production and construction. After 20 years of exploration, development and construction, Zhongyuan Oilfield has built a crude oil and natural gas gathering and transportation system, a crude oil and light hydrocarbon treatment system and a natural gas treatment system centered on Liutun area. The main devices are imported from developed countries in Western Europe. The oilfield has 1 crude oil depot with a reserve of 36× 104m3, and the annual crude oil export capacity of Luozhong Line, a crude oil export pipeline currently in operation, is 400× 104m3. There are 2 industrial gas distribution stations for natural gas export and 5 long-distance pipelines for natural gas export. The main users are Cangzhou, Anyang, Jinan, Zhengzhou, Kaifeng and Puyang. There are 8 1 10kV substations and 1 self-contained gas-fired power plants in the oilfield power system.

Zhongyuan Oilfield is located at the junction of Henan and Shandong provinces, with the central area in Puyang City, Henan Province. It is an important oil and gas production base in eastern China. 1975 started large-scale exploration, and 1979 was officially put into development. Its geological structure is a part of the Bohai Bay subsidence zone, and it is a basin with rift characteristics formed by geological faults, which is called Dongpu Depression in geology. The basin starts from Shenxian in the north and reaches Nankao in Henan in the south, with a northeast-southwest trend and an area of about 5,300 square kilometers. From the geological map, it looks like a pipa hanging obliquely. Dongpu Depression is a major development zone, spanning six cities in Henan and Shandong provinces 12 counties, with an area of 5,300 square kilometers. In addition to Dongpu Depression, there are three exploration areas in China, namely Baiyinchagan in Inner Mongolia, Yili in Xinjiang and Minhe in Qinghai, with a registered geological survey area of 69,900 square kilometers and a registered prospecting area of 1.76 million square kilometers. By the end of 1999,

Accumulated proven petroleum geological reserves are 485 million tons and natural gas geological reserves are 654.38+0.8 billion cubic meters; The crude oil output is 928 1 10,000 tons, the natural gas output is 1.8 1 100 million cubic meters, and the commodity gas output is 91.90 million cubic meters. The total industrial output value is 55 1.5 billion yuan, and various taxes and fees are paid 5.2 billion yuan. The annual production capacity of crude oil and natural gas is 3.75 million tons and 654.38+0.2 billion cubic meters respectively. The original value of fixed assets is 65.438+0.76 billion yuan, the net value is 56.5438+0 billion yuan, and there are 35,000 employees.

As early as the mid-1950s, petroleum and geological departments began to explore this treasure land, and used geophysical methods such as gravity, magnetic force and electrical method to conduct geological surveys. It took more than ten years to find out the characteristics of regional geological structure. Since then, Shengli Oilfield, Petroleum Geophysical Exploration Bureau and Henan Oilfield have successively carried out seismic survey and drilling work here. On September 7th, 1975, the Pushen 1 well located in Liuwen Township, Puyang County gushed out industrial oil flow, which started the battle for exploration and development of Zhongyuan Oilfield.

Pushan 1 blowout oil is another major breakthrough in oil exploration in eastern China. The Ministry of Petroleum immediately decided to mobilize forces from Shengli Oilfield, Henan Oilfield, Petroleum Geophysical Bureau and other units. 1975, 10 In June, Dongpu Petroleum Exploration and Combat Command was established, which belongs to Shengli Oilfield. 1978 was renamed Dongpu Petroleum Combat Command in June. After more than three years of exploration, a considerable amount of petroleum geological reserves have been proved, which has prepared the conditions for large-scale development of oil fields. On July 1979 and 1, Wenzhong Oilfield, the first oil field in China crude oil producing area, was put into production, producing 230,000 tons of crude oil that year. 198 1 August, Dongpu Petroleum Campaign Command changed its affiliation and became an independent petroleum enterprise under the dual leadership of the Ministry of Petroleum and Henan Province. /kloc-0 changed its name to Zhongyuan Petroleum Exploration Bureau in March, 1982.

After the establishment of Zhongyuan Oilfield Exploration Bureau, it adhered to the principle of paying equal attention to exploration and development, and the proven petroleum geological reserves increased greatly, and the production scale expanded year by year. Liuwen, Pucheng, Wenmingzhai, Wennan, Huxiang, Machang and other 14 oil and gas fields have been discovered in Dongpu sag with an area of 5,300 square kilometers, ranking among the national oil fields.

The exploration and development achievements of Zhongyuan Oilfield are the victory of China oil workers' enterprising spirit. In the early stage of exploration and development, countless people gave up comfortable working environment and living conditions, preferring to sleep in tents and eat dry food in this vast wasteland. Day after day, year after year, they associate with steel and sand. After 20 years of dust collection, it's a long way to go in Xiu Yuan. Heroic oil builders built historical monuments in the Central Plains with their own hands and made great contributions to the modernization of the motherland.

Since the development and construction of Zhongyuan Oilfield, it has experienced the development stages of the Sixth Five-Year Plan and the Seventh Five-Year Plan. Especially since 1983, in view of the fact that oil and gas resources are abundant, but the geological structure is complex and development is difficult, the oilfield has launched a massive "three-year scientific and technological battle" and solved a number of major technical problems. The average annual crude oil output increased by1000000 tons, reaching 7.22 million tons in 1988, and remained at 63438+0988 for the next two years.

After entering the Eighth Five-Year Plan, during the transition from planned economy to market economy, some deep-seated contradictions seriously restricted the development of oil fields. Faced with the contradictions such as insufficient reserves, difficult development, heavy debts and excessive personnel, Zhongyuan Oilfield adheres to the principle of mutual promotion of reform and development. On the one hand, conscientiously implement the strategic policy of "oil and gas leading, developing the industry through science and technology, and developing on the basis of merit"; On the one hand, in accordance with the overall reform requirements of the country's "three changes and one strength", with the goal of transforming the operating mechanism and enhancing the market competitiveness, the traditional operating mode that restricts the development of productive forces within enterprises has been comprehensively, forcefully and quickly reformed, and the management system and operating mechanism that meet the needs of market competition have been established, forming a new pattern of production specialization, management systematization, service regionalization and marketization. The market competitiveness and anti-risk ability of enterprises have been further enhanced, and the production and operation conditions have improved year by year. 1997 realized a profit of 510.8 million yuan, which was listed as one of the top ten advanced models of state-owned enterprises by the Propaganda Department of the CPC and the State Economic and Trade Commission. In the next two years, although great changes have taken place in the external environment and various factors to reduce income and increase expenditure have increased, it still maintains the momentum of profitability. Zhongyuan Oilfield has implemented a series of reform and development measures in recent years, which have been fully affirmed by the leaders of the country, Henan Province and China Petroleum and Petrochemical Group Company. The State Council leaders Zhu Rongji, Zou Jiahua and Wu Bangguo all gave important instructions on the reform and development of the oilfield.

With the gradual deepening of oilfield exploration and development, a series of exploration and development technologies adapted to the geological characteristics of Zhongyuan Oilfield have been established one after another. Fine exploration technology for complex fault-block reservoirs, contiguous 3D seismic processing and interpretation technology, complex fault-block oilfield development technology, coalbed methane exploration and development technology, sandstone gas field efficient development technology, well condition prevention and treatment technology, oil layer reconstruction technology, remaining oil distribution research and potential tapping technology, deep pumping supporting technology, gas lift oil production supporting technology, deep well fracturing supporting technology, oil and gas exploration and development economic evaluation and oilfield production anti-corrosion supporting technology have provided powerful breakthroughs for exploration and oilfield stable production.

The exploration and development achievements of Zhongyuan Oilfield are the achievements of modern science and technology. Over the past 20 years, Zhongyuan Oilfield has attached great importance to science and technology and recruited talents. In particular, 1983 has been approved by the State Council, and it has carried out a three-year technical research on production and construction, which has brought oilfield science and technology to a new level.

Zhongyuan Oilfield has many exploration areas, a wide range, a large resource background and a very broad exploration prospect. According to the results of secondary resource evaluation, the remaining oil and natural gas resources in Dongpu Depression are 677 million tons and 246.3 million cubic meters, respectively, and the proven degree is only 4 1.7% and 29 1%, so the exploration potential is huge. Through the deep tapping potential of old oil fields, rolling reserves and breakthroughs in new exploration fields, oil field development also shows good prospects. In the next three years, the output of crude oil and natural gas can be stabilized at 3.5 million tons and 654.38+0.2 billion cubic meters respectively. In 2004, with the popularization and application of tertiary oil recovery technology and the development of new exploration fields, crude oil output will gradually pick up.

With the gradual deepening of the reorganization and restructuring of the group company and the establishment and improvement of the modern enterprise system, Zhongyuan Oilfield will further enrich the technical means of exploration and development under the unified leadership of the group company, intensify its work, and strive to achieve breakthroughs in oilfield exploration and stable and increased production; Continue to implement the low-cost strategy, maximize profit space, continuously enhance market competitiveness, and achieve sustained and stable development.

Time flies and things change. After more than 20 years' efforts, Zhongyuan Oilfield has developed into a geological exploration, oil refining, oil refining and petrochemical industry, providing engineering and technical services including geophysical exploration, drilling, mud, cementing, logging, oil testing, completion, workover, operation, acidification, fracturing, oil and gas gathering and transportation, scientific research and design, ground engineering construction, etc., and also engaging in labor export and import and export trade.

She built four oil and gas fields in Dongpu Depression, including Liuwen, Pucheng and Huzhuangji, with an annual output of 4 million tons of crude oil and 654.38+0.2 billion cubic meters of natural gas. It has formed an oil and gas production and petrochemical base integrating oil and gas exploration and development, refining and chemical industry, machinery manufacturing and maintenance. In addition, she has also obtained the exploration and development rights of Yili in Xinjiang, Baiyinchagan in Inner Mongolia and Minhe Basin in Qinghai, obtained the risk exploration and development rights of Sudan, and provided engineering and technical services in Pakistan, Bangladesh, Ethiopia and Indonesia.

She has a professional construction team and scientific research team. It is at the leading level at home and abroad in the exploration and development of complex fault-block oil and gas fields.

She has successfully cooperated with hundreds of companies in more than a dozen countries around the world.

She has completed and is implementing a number of domestic and international engineering projects and enjoys a good reputation.

In recent years, her diversified industries have been growing. Its products sell well in more than ten provinces and cities, and are exported to the United States, Hong Kong, South Asia, Africa and other countries and regions. In order to give full play to the advantages and potential of super-large state-owned enterprises in resources, technology and talents, Zhongyuan Oilfield is willing to attract investment and cooperate with friendly people at home and abroad to further promote the development of diversified industries.

She is willing to cooperate with reputable and powerful domestic and foreign counterparts to jointly create a bright future for the world oil industry!

commercial information

Oil and gas exploration is the leader of Zhongyuan oilfield development, and it is a relatively independent, complete and supporting system in business. After years of exploration practice, Zhongyuan Oilfield has built an exploration team with excellent equipment, advanced technology and excellent work style, specializing in medium and long-term oil and gas exploration strategy research and exploration deployment planning in Zhongyuan Oilfield. Petroleum geological survey, technical and economic evaluation and exploration constituency registration of new basins and exploration areas at home and abroad; Implementation of annual exploration deployment, implementation of exploration projects, calculation of reserves and analysis of investment effect; Implementation scheme design, scientific research and new technology popularization of exploration engineering projects

Wide application, on-site technical management, project quality supervision, completion acceptance and other whole processes and all-round services. The exploration system of Zhongyuan Oilfield actively implements the requirements of "three unifications of reserves, production and benefits" of Petrochemical Corporation, adheres to the exploration policy of "based on Dongpu, breaking through the periphery, opening up the Central Plains and opening up the world", and aims to find large reserves and large replacement areas, emancipates the mind, boldly adopts new theories and technologies, increases exploration efforts in new basins and new fields, and strives to make major breakthroughs in exploration.

Oil and gas development is the pillar industry of Zhongyuan Oilfield. The development system is responsible for rolling exploration and development of oil fields, productivity construction of new and old areas, oil and gas production, development and management of old oil fields, basic geological research, oil production technology research and other tasks. Zhongyuan Oilfield Company has advanced technical equipment and high-quality researchers in fine reservoir description, remaining oil distribution research, and management mode adjustment of tapping potential. In recent years, Zhongyuan Oilfield has increased its proven reserves and produced reserves through tapping the potential of old oilfields and rolling exploration and development, thus realizing the sustained and stable development of the oilfield.

Oil and gas treatment, storage and transportation and public system engineering are the lifeblood of oilfield production and construction. After 20 years of exploration, development and construction, Zhongyuan Oilfield has built a crude oil and natural gas gathering and transportation system, a crude oil and light hydrocarbon treatment system and a natural gas treatment system centered on Liutun area. The main devices are imported from developed countries in Western Europe. The oilfield has 1 crude oil depot with a reserve of 36× 104m3, and the annual crude oil export capacity of Luozhong Line, a crude oil export pipeline currently in operation, is 400× 104m3. There are 2 industrial gas distribution stations for natural gas export and 5 long-distance pipelines for natural gas export. The main users are Cangzhou, Anyang, Jinan, Zhengzhou, Kaifeng and Puyang. There are 8 1 10kV substations and 1 self-contained gas-fired power plants in the oilfield power system.