截至9月6日，中国石化中原油田普光气田自2009年全面投产以来累计井口气量突破1400亿立方米，作为国家“川气东送”工程核心气源地，国内首个规模化开发的海相高含硫大气田普光气田圆满达成设计产量目标，成功实现开发中后期二次稳产高产，面对老气田稳产瓶颈普光分公司持续攻坚核心技术破解开发痛点难点，在稳产保供、储量动用产能接替等方面取得重大突破。

As of September 6th, the Puguang Gas Field of Zhongyuan Oilfield of Sinopec has cumulatively produced over 140 billion cubic meters of gas since its full-scale commissioning in 2009. As the core gas source for the national "Sichuan Gas Eastward Transmission" project, the Puguang Gas Field, the first large-scale developed marine high-sulfur gas field in China, has successfully achieved its designed production target and successfully achieved secondary stable production and high output in the middle and late stages of development. Facing the bottleneck of stable production in old gas fields, the Puguang Branch Company has continuously strived to tackle core technologies to solve development pain points and difficulties. It has made significant breakthroughs in aspects such as stable production and supply, reserve utilization, and capacity replacement.

科创破局治顽疾

Breakthrough in science and technology to address chronic problems

夯实气田稳产底盘

Strengthen the foundation for stable production of the gas field

巅峰时期，普光气田年产井口气高达106亿立方米。但从2017年开始，水侵、硫沉积等问题持续凸显，老气田稳产压力逐年加大。

At its peak, the Puguang gas field produced up to 1.06 billion cubic meters of gas per year. However, starting from 2017, problems such as water intrusion and sulfur deposition have become increasingly prominent, and the pressure to maintain stable production in the old gas field has been increasing year by year.

为此，在水侵治理方面，科研团队创新搭建“水侵预警、分层堵水、排水采气”全链条闭环治理技术体系，实现水侵隐患早发现、早处置，水淹低效井精准治理、快速复苏。

To this end, in the field of water invasion control, the research team innovatively established a "water invasion early warning, layered water plugging, and drainage gas recovery" full-chain closed-loop governance technology system, enabling early detection and timely handling of water invasion risks, as well as precise governance and rapid recovery of waterlogged low-efficiency wells.

在治硫控硫方面，配套形成多工况分类治理工艺，治硫有效率达100%，气井产能恢复率超98%。系列治硫控硫技术落地，年均减缓产能递减率3个百分点，累计增产天然气20亿立方米，投入产出比达1∶7。

In terms of sulfur treatment and control, a multi-condition classification treatment process has been established. The sulfur treatment efficiency reaches 100%, and the recovery rate of gas well production capacity exceeds 98%. A series of sulfur treatment and control technologies have been implemented. The average annual reduction rate of production decline is 3 percentage points, and a total of 2 billion cubic meters of natural gas have been increased in production. The input-output ratio is 1:7.

普光气田最终研发出业界领先的控水、治硫技术，使得气田增加可采储量317亿立方米，相当于又发现一个地质储量500亿立方米的大型气田。

The Puguang gas field has finally developed industry-leading water control and sulfur treatment technologies, resulting in an increase of 31.7 billion cubic meters in the recoverable reserves of the gas field. This is equivalent to discovering another large gas field with a geological reserve of 50 billion cubic meters.

海陆并进拓新域

Expanding into new territories through both land and sea approaches

构建多元接替格局

Establish a diversified succession pattern

为培育全新增长极，普光分公司向陆相致密气、海陆相页岩气等非常规领域纵深突破，全力寻找“第二个普光”。

To cultivate new growth poles, the Pujiang Branch has made in-depth breakthroughs in unconventional fields such as marine-sandstone tight gas and marine-terrestrial shale gas, and is striving to find "the second Pujiang".

目前，气田非常规气井累计产气3.55亿立方米，日产气量超60万立方米，成为气田稳产保供的核心增量。

At present, the unconventional gas wells in the gas field have cumulatively produced 355 million cubic meters of gas, with a daily gas output exceeding 600,000 cubic meters. This has become the core increment for maintaining stable production and ensuring supply in the gas field.

与此同时，通南巴区块日产气量突破100万立方米，通过“一井一策”全生命周期管理、排采工艺优化，有效控制产能递减，成为气田推进致密气快上产的重要标志性成果。

Meanwhile, the daily gas production in the Tongnanba block exceeded 1 million cubic meters. Through the "one-well-one-plan" full life-cycle management and optimization of production and drainage processes, the decline in production capacity was effectively controlled, making it an important landmark achievement for the gas field in accelerating the rapid production of tight gas.

技改攻坚提产能

Strategic Transformation to Boost Production Capacity

二次创业启新程

Second Entrepreneurship Brings a New Chapter

长期以来，高含硫湿气增压开采核心技术、成套设备被国外垄断，国内无成熟技术体系和工程案例。

For a long time, the core technologies and complete sets of equipment for boosting and extracting high-sulfur wet gas have been monopolized by foreign countries. There is no mature technical system or engineering case in China.

该公司攻克高含硫湿气增压开采国外技术垄断难题，自主建立复杂流体压力评价方法、优化气藏产能测算模型，形成国产化增压开采成套技术，开辟老气田提采增效新路径。

The company overcame the technical monopoly of foreign countries in the high-sulfur wet gas pressure-enhanced extraction, independently established a complex fluid pressure eva luation method and optimized the gas reservoir production capacity calculation model, forming a set of domestic pressure-enhanced extraction technologies, and opening up a new path for enhancing production and efficiency in old gas fields.

为持续扩充产能储备，2024年，普光分公司全面启动产能建设大会战，掀起新井建设热潮。截至目前，新投产井41口，掀起气田二次创业新热潮。

To continuously expand production capacity reserves, in 2024, the Pu Guang Branch Company fully launched a capacity construction campaign, triggering a new well construction boom. As of now, 41 new wells have been put into production, ushering in a new wave of entrepreneurship in the gas field.