Nowadays, in the modern system of oil and gas field exploration and development, the efficient development of low permeability oil and gas fields has always been the focus of the industry, and the air foam oil displacement technology is the core technology to improve the recovery rate of low permeability oil and gas reservoirs, which plays a key role. It can not only accurately regulate the performance of the injected medium, effectively improve the permeability conditions of the reservoir, but also provide strong support for the efficient exploitation of oil and gas resources. However, there are potential hazards such as the accumulation of flammable and explosive gases and the leakage of harmful gases during the homework process, which pose a potential threat to the safety of the job.

It is learned that the application of air foam flooding technology in oil and gas field operations and the gas dynamic monitoring in oil wells is always a difficult problem that cannot be ignored. The concentration changes of methane, oxygen, carbon dioxide and nitrogen are interrelated. The abnormal concentration of methane is easy to cause safety risks. The oxygen content directly affects the safety of the operating environment and the combustion efficiency. The change of carbon dioxide concentration will interfere with the stability of foam and the displacement effect. The imbalance of nitrogen ratio will weaken the oil displacement efficiency. The concentration of these gases in oil wells not only dynamically changes with the production process, but may also experience sudden increases and decreases due to gas channeling, posing a potential threat to production safety and process optimization. Therefore, real-time, accurate, and synchronized monitoring of these four gases is not simply a technical requirement, but also an inherent need to safeguard mining safety, optimize oil displacement processes, and enhance development efficiency.

For customers, they are committed to the research and application of anti gas channeling technology for air foam flooding oil wells, and urgently need a set of reliable gas detector monitoring equipment, which can provide high-precision data support for their technical optimization. Especially accurate monitoring of methane, carbon dioxide, nitrogen, and oxygen is a key basis for verifying the effectiveness of gas channeling prevention and optimizing injection parameters. Among them, monitoring the conversion value of nitrogen highlights the professional requirements for analyzing complex gas environments.

Under the severe gas monitoring demand, Yiyuntian has launched a professional solution of "real-time monitoring+deep analysis" with its profound technical accumulation - PTM600-4 four in one gas detector. It is highly expected to become a key tool for accurately capturing the gas dynamics of oil wells and helping to break through gas breakthrough technology.

1. Background of the plan:

The national engineering laboratory for exploration and development of low-permeability oil and gas fields needs a four in one detector for preventing gas channeling in oil wells with air foam flooding, which detects methane, oxygen, carbon dioxide and nitrogen.

2. Parameter requirements:

Gas type and range requirements for detection:

甲烷 CH4：0-100%vol、0.01%vol；

Carbon dioxide CO2: 2-100% vol, 0.01% vol;

Oxygen O2: 0-25% vol, 0.01% vol;

氮气 N2：0-100%vol、0.01%vol；

Large capacity battery: 15000mAh

3. Solution:

PTM600-4 (CH4+O2+CO2+N2) is recommended, with the following parameters:

Methane CH4:0-100% vol, 0.01% vol, imported laser TDLAS sensor
Carbon dioxide CO2: 2-100% vol, 0.01% vol, imported high-precision infrared sensor
Oxygen O2: 0-25% vol, 0.01% vol, imported industrial grade electrochemical sensor

Nitrogen N2: 0-100% vol, 0.01% vol; (Converted value)

The standard battery capacity of PTM600 itself is 10800mAh. According to the special requirements of the demand, the supplier has increased the battery capacity inside the detector, with a total battery capacity of 15000mAh.

4. What product was matched:

With the comprehensive investment and stable operation of the Yiyuntian four in one gas detector scheme in the National Engineering Laboratory for Low permeability Oil and Gas Field Exploration and Development, a dual breakthrough has been achieved in gas monitoring accuracy and scientific research efficiency. With its multi gas synchronous monitoring capability, 0.01% vol high precision performance and 15000mAh large capacity battery lasting performance, this detection equipment has become a data leader in oil well gas channeling prevention research, and has built a solid scientific and technological support for the optimization and upgrading of air foam oil displacement technology.

After the implementation of this detection plan, the laboratory can use a four in one gas detector to monitor the concentration of methane, oxygen and other gases in the oil well in real time, providing data for optimizing the anti gas breakthrough process. By analyzing monitoring data, accurately grasping the gas breakthrough law, it is easy to optimize injection parameters to improve oil displacement efficiency, promote technological progress in low-permeability oil and gas reservoir development, and provide scientific research support for efficient utilization of oil and gas.

Yiyuntian has demonstrated strong competitiveness in this cooperation through customized services that deeply integrate "technology+demand" four in one gas detector. We actively cooperate with the construction and post data provision throughout the online process, transitioning from equipment suppliers to research partners, providing customized services for oil and gas field gas monitoring.

In the future, facing the demand for efficient development and safety and environmental protection in the oil and gas industry, Yiyuntian will use this project as a model to deepen technological integration and innovation, develop a new generation of gas monitoring systems that are adaptable to multiple scenarios and have automatic data analysis functions, and provide an integrated solution of "monitoring analysis decision-making". At the same time, expanding the application of new energy, assisting in the efficient and safe development of oil and gas resources, and promoting the green development of the energy industry.