Prospect of Zhongyuan Oilfield

Build three bases to build a century-old foundation

"Build three bases to build a century-old foundation." On January 1th, this exciting news came from the Third Committee (enlarged) meeting of the third session of the Bureau Party Committee, the Third Workers' Congress of the seventh session and the work conference in 21. The oilfield will build three major oil and gas production bases in Dongpu, Puguang and Inner Mongolia, and the strategic concept of building a "century-old oilfield" is becoming a concrete action.

Dongpu: the foundation of Zhongyuan Oilfield

After more than 3 years of development and construction, Zhongyuan Oilfield, as the second largest oil and gas field of China Petrochemical Group, has become an important oil and gas production base in eastern China, contributing more than 12 million tons of crude oil and nearly 4 billion cubic meters of natural gas to the United States.

in p>29, the old Dongpu area produced 2.86 million tons of crude oil and 836 million cubic meters of natural gas. The construction of oil and gas fields is a long and complicated process, and it is by no means an overnight success to build an oil field of this scale. For Zhongyuan Oilfield, Dongpu old area is still our foothold for a long time. Resources are the foundation of oilfield survival and development. Dongpu sag is rich in oil and gas. The results of three resource evaluations show that the oil resources are 1.237 billion tons and the natural gas resources are 367.5 billion cubic meters. Up to now, the accumulated proven petroleum geological reserves in Dongpu Depression are 565 million tons, and the proven rate is less than 5%. The accumulated proven geological reserves of natural gas are 13.1 billion cubic meters, and the proven rate is only 35%, which is far lower than the exploration level of eastern oil fields and has great exploration potential.

with the progress of science and technology, the oilfield has gradually explored and perfected a series of exploration technologies that are accurate in pointing, clear in seeing, right in hitting, clear in distinguishing and good in trying. These new technologies and new processes are increasingly applied to oil and gas exploration, providing strong technical support for fine exploration in old oil fields. In recent years, the newly-increased proven reserves in oil fields are more than 1 million tons every year, and the grade and utilization degree of reserves are constantly improving. Abundant resource reserves and continuous replacement of new resources have laid a solid resource foundation for the sustainable and effective development of the old Dongpu area.

in the development of old areas, the oil field firmly established the concept of "fine secondary development", taking the reservoir management as the center and comprehensively adjusting and managing the fine old areas, so that the natural decline was slowed down, the formation energy and comprehensive water cut remained stable, the development situation improved year by year, and the stable production foundation was gradually strengthened.

whether it is the resource base or the development status, the conditions for maintaining an annual output of 3 million tons of oil and gas equivalent in the old Dongpu area for a long time are basically available.

in order to build Dongpu, an oil and gas production base, in 21, the oilfield proposed to fight positional warfare for stable production in Dongpu old area, and strive to increase high-quality reserves and improve oil recovery and single well production. First of all, fine exploration, to maintain stable growth of reserves, and to lay a solid resource foundation for long-term stable production. Secondly, fine development, reconstruction of underground knowledge system, reconstruction of injection-production well pattern structure, and reorganization of surface process flow will improve the development effect of old areas and strengthen the foundation of stable production. In addition, the oil field will also optimize and transform the gathering and transportation, water injection, electric power and other systems to improve the efficiency of the ground system.

puguang: the light of hope in Zhongyuan oilfield

in October p>29, puguang gas field was successfully put into production and put into trial operation.

with the commissioning of puguang gas field, the resource map of Zhongyuan oilfield has expanded from the bank of the yellow river to the northeast of Sichuan, and the situation of relying solely on Dongpu as a resource support point has been changed, which has greatly alleviated the contradiction of insufficient reserves, more people and less oil, and insufficient development motivation that has plagued the oilfield for many years, and enhanced the confidence and scientific and effective development ability of the broad masses of cadres and workers in the oilfield.

in recent years, in view of the characteristics of high-sulfur gas fields, the oilfield has continuously optimized the development plan and well location design, carefully organized the operation and ground construction, and promoted various key tasks in an orderly manner. At present, the optimization and drilling engineering of Puguang main development wells have been fully completed, and all 38 development wells have encountered high-quality gas reservoirs. The commissioning operation reached the design requirements. The measured open flow rate of 9 wells in the first phase averaged 5.85 million cubic meters, and 24 wells were put into operation after 8.5 billion cubic meters. The measured open flow rate averaged 4.87 million cubic meters. Puguang gas field has accumulated proven reserves of 383.1 billion cubic meters, making it the largest and most abundant super-large marine gas field in China so far, and one of the five largest gas fields with more than 2 billion cubic meters in China. At present, while the marine exploration has made a breakthrough, the continental exploration in Puguang gas field has also made a breakthrough. Natural gas in continental strata contains no hydrogen sulfide and is shallow buried, so it is a high-quality clean energy source. Marine and continental stereo exploration undoubtedly provides a more reliable guarantee for Puguang gas field to further tap its reserve potential and ensure its stable production. It is estimated that Puguang gas field will maintain the production scale of 8-1 billion cubic meters in the next 8-1 years.

in p>21, puguang gas field plans to produce 5.36 billion cubic meters of mixed gas. By then, the annual oil-gas equivalent of Zhongyuan Oilfield will reach 8.71 million tons, exceeding the peak of 7.22 million tons in 1988.

the development and construction of puguang gas field has entered the stage of comprehensive production and fine management, which requires us to fully fight the tough battle of puguang gas field development. In 21, the oilfield will further strengthen marine and continental rolling exploration research, strive for new discoveries and increase the available reserves while doing a good job in the smooth operation of the first phase of 2 billion capacity, the trial operation of the second phase of 8.5 billion capacity, the capacity construction of Dawan block and the safety and environmental protection management.

Inner Mongolia: the replacement battlefield of Zhongyuan Oilfield

On January 11th, the exploration and development headquarters of Zhongyuan Oilfield's Inner Mongolia exploration area was unveiled, which sounded the horn of marching into the Inner Mongolia exploration area.

in October, 29, the group company assigned 19,6 square kilometers of oil and gas exploration blocks in Erlian basin of Inner Mongolia to Zhongyuan Oilfield for exploration and development, and requested to achieve a breakthrough in exploration this year and build a production capacity of 2,-3, tons within 3-5 years. So far, Zhongyuan Oilfield has more than 3, square kilometers of exploration and development positions in Inner Mongolia exploration area, including Baiyinchagan, Chagan sag and Erlian basin. The establishment of the exploration and development headquarters in Inner Mongolia exploration area is the corresponding arrangement made according to this deployment. In 1993, Zhongyuan Oilfield obtained the oil and gas exploration right of more than 1,8 square kilometers in Baiyinchagan, Inner Mongolia. After 17 years of spring and autumn, Zhongyuan Oilfield has successively implemented a number of oil-bearing structures in Baiyinchagan, and successfully discovered three oilfields, such as Darqi, Sanhe and Xilinhaolai, with accumulated proven high-quality reserves of nearly 3 million tons, showing a strong momentum of rapid growth. Especially since 24, the annual production capacity of crude oil has increased by 2, tons every year. At present, Baiyinchagan has built a production capacity of 1, tons of crude oil, making it the most realistic capacity replacement area in Zhongyuan Oilfield.

Chagan sag is one of the important new exploration areas in the oilfield, with an exploration area of about 2, square kilometers. Due to the extremely complicated structural evolution, the geological evaluation of the sag is very difficult. After more than half a century of exploration and research, no industrial oil flow has been obtained. This year, after repeated argumentation, the oilfield carried out acid fracturing on well Li 1, and obtained an industrial oil flow of 18.8 tons per day, breaking through the industrial oil flow barrier. Chagan Sag has achieved a breakthrough in deep exploration, reporting and controlling petroleum geological reserves of 14.68 million tons, making it one of the four new exploration discoveries of the Group Company in 29.

With Erlian Basin being placed in Zhongyuan Oilfield, Inner Mongolia exploration area has become the most realistic and reliable position for the oilfield to realize the strategic succession of resources.

this year, the oilfield has made a strategic deployment to shift the strategic focus of replacing oil and gas resources to Inner Mongolia exploration area. To build an oil and gas production base in Inner Mongolia, we need to fight the exploration offensive battle in Inner Mongolia exploration area. Focus on achieving three goals. First, Baiyinchagan will increase reserves and increase production, and plans to add 2 million tons of proven petroleum geological reserves to maintain steady growth of oil and gas production; Second, continue to expand the results of Chagan block and realize the upgrading of control and forecast reserves; The third is to implement rolling exploration and development in Erlian New Area, and strive to find large-scale reserves.

Now, Zhongyuan Oilfield has a solid base camp of Dongpu and two resource bases with broad development prospects, Puguang and Inner Mongolia. There is no reason why we should not rejoice in it, fight for it, devote ourselves to it and contribute our wisdom and strength.

we believe that in the near future, the oilfield will form a "three-legged" stable development pattern, and the three major oil and gas production bases will echo each other, supporting the century-old foundation of Zhongyuan Oilfield.