Oilfield water injection is an effective method to maintain reservoir pressure, achieve high and stable production, and improve oilfield development efficiency. Due to the multiple layers, there are significant differences in physical properties and water absorption capacity among different geological layers. During the process of water injection development, it is easy to encounter water breakthrough, resulting in inefficient and ineffective water injection; However, the existing third-generation water injection technology has a large workload, long water distribution cycle, inability to monitor in real time, and cannot meet the requirements of big data.
Therefore, a cable free intelligent layered water injection system is proposed, which belongs to the fourth generation layered water injection technology. The collected data includes conventional layered pressure, flow rate and other technical parameters. It integrates wireless communication technology, layered water injection technology and artificial intelligence technology based on big data statistics, which can achieve remote automatic monitoring of each injection layer, precise layer measurement and adjustment, fine management, real-time monitoring of flow rate and pressure, etc., ensuring water drive effect and achieving high and stable oil production.
1. Compared to cable injection technology, there is no need to deploy cables or water nozzles, making construction simple and cost-effective; Can meet the requirements of pressurized operations
2. The instrument adopts a low-power design and can work continuously for at least 4 years
3. Underground flow measurement with one click automatic sealing and adjustment function, ensuring precise water injection
4. Adopting a multi-stage orifice flow meter, the induction of pressure difference is more sensitive and the measurement effect is better
5. The downhole instrument adopts a secondary sealing structure, which has high reliability
6. Data upload ensures reliability, with software automatic recognition and manual recognition functions, excellent anti-interference performance, and comprehensive assurance of data security and reliability
7. The dispenser supports disassembly free system update technology, which is our unique key technology in the industry, making technology updates and maintenance faster and saving a lot of manpower and material resources
project | Technical Specifications |
Technical specifications of ground high-voltage self-control instrument | |
Control valve working pressure | 35MPa |
Operating Temperature | （-30~85）℃ |
flow measurement | （1~150）m³/d |
Pressure measurement range | （0~40）MPa |
Working Voltage | AC220V/50Hz |
Technical indicators of downhole injection equipment | |
Maximum work pressure | 60MPa |
Maximum operating temperature | 150℃ |
Instrument length | 1018mm |
flow measurement | （4~45）m³/d （Optional） |
