8月9日，渤海油田传来好消息，千亿方大气田渤中19-6气田Ⅰ期开发项目全面投产，日产油气当量超5200吨，开发效果超过预期。

On August 9th, good news came from the Bohai Oilfield. The first-phase development project of the billion-cubic-meter-sized BOC 19-6 gas field was fully operational, with a daily output of over 5,200 tons of oil and gas equivalent. The development results exceeded expectations.

千亿方大气田开发难在哪?

What are the difficulties in developing a trillion-cubic-meter-sized natural gas field?

渤中19-6凝析气田位于渤海中部海域，探明天然气地质储量超2000亿立方米、探明石油液体地质储量超2亿立方米。该气田埋藏深度超过5000米，油气藏分布广阔、类型复杂，且潜山储层裂缝密集。

The Bohai No.19-6 condensate gas field is located in the central waters of the Bohai Sea. The proven geological reserves of natural gas exceed 200 billion cubic meters, and the proven liquid petroleum reserves exceed 200 million cubic meters. The gas field is buried at a depth of over 5,000 meters. The oil and gas reservoirs are widely distributed and of complex types, and the faulted mountain reservoirs have dense fractures.

面对最高温度204℃、硬度超过常规碳钢的地层挑战，工程技术团队相继突破多项关键技术，构建起适配渤海、自主可控的超深层储层特色技术体系，成功实施全球首次太古界潜山地层分支井作业。在Ⅰ期开发项目中，项目组成功实施6000米以上超深井10口，创下渤海油田开发项目超深井井数纪录，项目钻井作业平均井深超5500米。

Facing the geological challenges of a maximum temperature of 204℃ and a hardness exceeding that of conventional carbon steel, the engineering technology team successively overcame multiple key technologies, establishing a unique technology system for ultra-deep reservoirs adapted to the Bohai Sea and with independent control. They successfully carried out the world's first operation of a branch well in the Archean slope formation. In the first-phase development project, the project team successfully implemented 10 wells over 6,000 meters in depth, setting a record for the number of ultra-deep wells in the development projects of the Bohai Sea Oilfield. The average well depth of the project's drilling operations exceeded 5,500 meters.

潜山储层内，凝析气主要分布于微米级裂缝中，会在地层压力快速下降时从气态转化为液态。因此，传统气藏开采模式不适用于渤中19-6凝析气田。技术团队持续攻关，探索形成海上超深层复杂潜山油气藏开发技术体系，实现以气保油、以气保气，有效破解开发难题。

In the underlying reservoirs, condensate gas is mainly distributed in micrometer-sized fractures and will transform from gaseous state to liquid state when the formation pressure drops rapidly. Therefore, the traditional gas reservoir exploitation mode is not applicable to the Bohzhong 19-6 condensate gas field. The technical team has been continuously researching and exploring, and has formed an offshore ultra-deep complex inclined mountain oil and gas reservoir development technology system, achieving the goal of protecting oil with gas and protecting gas with gas, effectively solving the development problems.

大气田，有大担当!

The giant oil field, with great responsibility!

我国天然气储量分布呈“西多东少”格局。渤中19-6凝析气田已累计生产天然气超28亿立方米，是保障京津冀及环渤海地区天然气稳定供应的重要力量。

The distribution of natural gas reserves in our country follows the pattern of "more in the west and less in the east". The Bohai No. 19-6 condensate gas field has cumulatively produced over 2.8 billion cubic meters of natural gas, which is an important force for ensuring the stable supply of natural gas in the Beijing-Tianjin-Hebei region and the surrounding Bohai Sea area.

当前正值迎峰度夏关键时期，渤中19-6气田Ⅰ期开发项目全面投产，进一步满足了区域居民生活和工业生产的能源需求。渤西作业公司联动工程技术作业中心、渤海石油研究院，对气井实行“一井一策”精细管控。各专业紧密合作，一方面推进新井早见产、投产后快速上产，另一方面科学管理老井，深挖高产气井潜力，并根据下游管网负荷动态调配生产。目前气田日产气达350万立方米。

Currently, it is the crucial period for peak load and summer heat protection. The Phase I development project of the Bohai No.19-6 gas field has been fully put into operation, further meeting the energy demands of local residents' daily life and industrial production. The Bohai West Operating Company has coordinated with the Engineering Technology Operation Center and the Bohai Petroleum Research Institute to implement "one well, one strategy" precise management for the gas wells. All specialties have closely collaborated. On one hand, they promote early production of new wells and rapid production after commissioning. On the other hand, they scientifically manage old wells, fully tap the potential of high-yield gas wells, and dynamically adjust production according to the load of the downstream pipeline network. Currently, the gas field produces 3.5 million cubic meters per day.

大气田，这样走来!

Big oil field, come this way!

2019年，我国渤海探明千亿方大型气田——渤中19-6气田。

In 2019, China discovered the Bohai Sea's large-scale gas field with an estimated volume of over 100 billion cubic meters - the Bohai 19-6 gas field.

2020年10月，渤中19-6气田试验区开发项目投产。

In October 2020, the pilot development project of the Bohai No.19-6 gas field was put into operation.

2022年3月，渤中19-6气田Ⅰ期开发项目正式进入工程实施阶段。

In March 2022, the first phase of the development project for the Bohai 19-6 gas field officially entered the engineering implementation stage.

2023年10月，渤中19-6气田Ⅰ期开发项目海上建设项目全部完成。

In October 2023, the offshore construction project of the Phase I development of the Bohai No.19-6 gas field was fully completed.

2023年11月，渤中19-6气田Ⅰ期开发项目投产

In November 2023, the first phase of the development project for the Bohai 19-6 gas field was put into operation.

2024年8月，渤中19-6凝析气田累计生产天然气超过10亿立方米。

In August 2024, the Bohai No.19-6 condensate gas field had cumulatively produced over 1 billion cubic meters of natural gas.

2026年6月，渤中19-6气田Ⅱ期开发项目钻井工程全面启动。

In June 2026, the drilling project for the Phase II development of the Bohai No.19-6 gas field was fully launched.

2026年6月，渤中19-6气田Ⅱ期开发项目3座平台主体结构建造完成。

In June 2026, the main structures of three platforms for the Phase II development project of the Bohai No.19-6 gas field were completed.

按照“整体部署、分期开发、试验先行”开发策略，气田Ⅱ期开发项目钻井工程已全面启动，进一步提升海洋油气对国内能源供给的支撑作用。

Following the development strategy of "overall planning, phased implementation, and pilot testing first", the drilling project for the second phase of the gas field has been fully launched, further enhancing the supporting role of marine oil and gas in China's energy supply.