Analysis and prospect of domestic natural gas market in 2023

We will spare no effort to ensure the livelihood of the people. The Natural gas Branch pays close attention to changes in market demand, reasonably optimizes resource allocation, accurately serves user needs, takes "ensuring people's livelihood" as the top priority, and continuously improves natural gas supply capacity. During the peak summer this year, the Natural gas Branch prepared a special supply guarantee plan, constantly adjusted and improved the operation and scheduling mode, fully raised natural gas resources on the basis of the supply guarantee contract, and stored sufficient peak load resources in gas storage and LNG storage tanks in advance. In July, the total supply of 244 million cubic meters of natural gas to direct gas power plant users, an increase of 22% year-on-year, a record high. At the same time, the company did a solid job of emergency peak load balancing, and increased the non-heating season natural gas contract volume by 95 million cubic meters during the "Universiade" in Chengdu to ensure energy use.

Zhongyuan Oilfield adheres to the integrated operation of natural gas to achieve over-planned production

Since the beginning of this year, Zhongyuan Oilfield has adhered to the integration of exploration and development and the integration of geological engineering, actively explored the land phase production position, steadily promoted the adjustment and exploitation of potential in old areas, and achieved efficient and stable operation. From January to August, it has produced 4.697 billion cubic meters of natural gas, exceeding the plan by 164 million cubic meters.

"In view of the bottleneck restricting the high-quality and sustainable development of oil fields, strengthening scientific research and technological innovation is the top priority." Zhongyuan oilfield deputy general manager Li Zhongchao said.

By means of scientific and technological research, Zhongyuan Oilfield has strengthened the fine management of sulfur and water control in the old area, deepened the evaluation potential of the stratified system around it, and made every effort to improve the utilization rate and recovery rate of the gas reservoir. Of the 7 Wells implemented, two Wells have been successfully put into operation, with a daily gas increase of 350,000 cubic meters, which fully confirms the effective way to understand the gas reservoir and excavate the remaining gas in the potential water intrusion area, and has important guiding significance for the next step to accelerate the pilot test of Class III layer and intra hole, and expand the adjustment scale of Class III layer and flooded area.

At the same time, Zhongyuan Oilfield focuses on the countermeasures for the beneficial development of natural gas, establishes a multi-disciplinary and multi-professional joint research model, and makes high-quality research and preparation of block adjustment plans. "Take the Dawan block of Puguang Gas Field as an example. The block has been producing steadily for 12 years, and the production performance is gradually declining, the difference between Wells is large, and the pressure decline trend is accelerating... These indicators mean that the Great Bay block is about to enter a phase of decline." Zhongyuan oil field gas reservoir engineering expert Yu Qikui introduced.

In order to further improve the degree of reserve utilization, extend the stable production period of the Greater Bay Area block, and maintain the stability of Marine production, the Puguang Gas field and the Petroleum Exploration Research Institute jointly worked out two potential exploitation directions, such as controlling the flow field to reduce reserves loss and adjusting the potential exploitation to increase reserves utilization, and completed the adjustment plan. "The overall plan is expected to build an annual capacity of more than 800 million cubic meters, and increase the recovery rate of the gas field by 1.43 percentage points." Yu Qikui said.

In addition, Zhongyuan Oilfield optimized production and operation, adhered to the work tone of "forward-looking thinking, overall planning, and overall promotion", focused on "efficient production construction, operation efficiency improvement, optimization of construction, time rate improvement" and other aspects of the work, continued to improve the coordinated production operation mechanism, and made every effort to improve organizational efficiency, laying a solid foundation for the completion of various production tasks.

In terms of process technology, Zhongyuan Oilfield, in line with the principle of continuously improving the speed of production and construction, focuses on the high-quality and efficient implementation of capacity construction, carries out research on drilling and production cost reduction and speed up, and ensures that safe production is achieved in the shortest time and under the best condition. "In terms of drilling technology," PDC composite bit + high-torque screw "is preferred, and the completion cycle is shortened by more than 5 days on average; In terms of gas production technology, the optimization of drilling and completion processes, using a single string run, equipment localization and string material degradation, etc., reduced the duration by 22% and cost by 34%." Zhongyuan oilfield deputy chief engineer Liu Changsong said.