Project Title:Integrated Packer for Ultra-deep well Fracturing Data Collection

Participating Enterprise: Tianjin Huizhu Petroleum Equipment Technology Co., Ltd.

Award Received:Scientific and Technological Progress Award - Bronze Award

Achievement Level: International Advanced Level

Project Number: ECF-2025-SET-1022

Main Participants: Kan Zhengyu, Yang Zongbo, Wang Shiming, Wang Yuxuan, Cong Junchao

Expert Review Comments:

International advanced level. This project addresses the limitations of packer and monitoring technologies under high-temperature and high-pressure conditions in ultra-deep oil and gas wells. It innovatively developed an intelligent packer that integrates setting and isolation, fracturing operations, and real-time data acquisition. The technology breaks through key challenges in material sealing, sensor encapsulation, power supply, and carrier signal transmission under extreme conditions of 230°C and 120 MPa, enabling real-time monitoring and safety control throughout the layered fracturing process of ultra-deep wells.
The tool is recoverable, safe, and highly efficient, and has been successfully applied in over 100 wells across Qinghai, Xinjiang, and Inner Mongolia, achieving a construction success rate of over 98%. It significantly reduces operational costs and improves efficiency, promoting the independent development of China’s high-end completion equipment and offering broad prospects for industrialization and international application.

Main Innovations:

1. Pioneered sealing, sensor encapsulation, power supply, and carrier transmission technologies capable of withstanding extreme conditions—230°C, 120 MPa, and 7,000 m well depth.

2. Developed the first real-time monitoring packer in China, capable of continuous, real-time formation management and data collection (pressure, temperature, etc.), greatly reducing production management and maintenance costs for oil and gas wells.

3. Replaced traditional low-efficiency tools, enabling precise operations under more complex well conditions, minimizing operational blind spots, and achieving cost reduction, efficiency improvement, and lean production.

Main Uses and Technical Principles:

Uses:
An advanced downhole tool integrating setting and isolation, fracturing execution, and real-time data acquisition. It is primarily used in the oil and natural gas industry, especially in ultra-deep wells within unconventional reservoirs such as shale gas and tight oil.

Principles:

1. Sealing Function: The packer employs hydraulic or mechanical setting to achieve bidirectional anchoring and high-pressure sealing at the target interval, isolating the fracturing zone from adjacent formations.

2. Data Acquisition Function: The packer integrates sensors for pressure, temperature, flow, strain, and acoustics to continuously collect data on pressure and temperature variations and sealing conditions during fracturing.

3. Data Storage and Transmission: Data are stored locally in high-temperature-resistant modules within the packer and transmitted to the surface via wired, fiber-optic, or short-range wireless methods.

Technical Applications:

The technology has completed R&D, productization, and large-scale industrial promotion, achieving significant economic benefits and widespread market recognition.

1. Application Scale:
   To date, the technology has been successfully applied in key domestic complex oil and gas regions, including CNPC Xinjiang Oilfield, Changqing Oilfield, Southwest Oil & Gas Field, and Shengli Oilfield.
   More than 30 organizations have adopted the system, with over 400 service wells and a total drilling footage exceeding 500,000 meters. Applicable well depths range from 2,000 to 5,000 meters.

2. Application Results:
   Compared with conventional geological guidance and downhole monitoring methods, this technology delivers superior results with significant improvements in key performance metrics:

• Modeling and analysis efficiency increased by 40%;

• Average reservoir encounter rate increased by 5%, reaching over 90% on average, with improvements exceeding 30% in complex wells;

• Data import and utilization efficiency increased by 60%;

• Multi-party collaborative decision-making efficiency improved by over 40%;

• Trajectory control accuracy improved by around 30%, ensuring wellbore integrity and reducing drilling risks;

• The optimized workflow shortened drilling cycles by 2–3 days, substantially reducing high daily rig costs.

The technology’s application results have received unanimous praise from client organizations and have been validated through multiple letters of recommendation.