7800 Meters! This Ultra-deep Well in The Junggar Basin Achieved New Breakthroughs in Fracturing

The fracturing reservoir stimulation depth of this well is 7793-7809.4 meters. It is the first fracturing well with a depth of more than 7800 meters completed by the company in the Shengli Western Exploration Area, setting a record for single-well and single-section reservoir stimulation in the Shengli Western Exploration Area. It has many new high-index records such as the deepest well depth, the largest pump injection volume, the largest sand adding scale, and the highest construction displacement.

Zhuangshen 1 Well
Well Zhuangshen 1 is located in the Junggar Basin, Xinjiang Uygur Autonomous Region. In order to further confirm the oil and gas properties of the Carboniferous reservoir through fracturing technology, and in view of the uneven physical properties of basalt and tuff reformation, temporary plugging agents between layers and fractures are used to achieve The purpose of uniform transformation.
It is the first large-scale pre-exploration well fracturing construction organized and implemented by Shengli Engineering Downhole Operation Company after the resumption of work and production in the western exploration area. It is also the first large-scale fracturing construction well in the ultra-deep Carboniferous system in the western exploration area. To this end, the company's on-duty leaders in Xinjiang kept a close eye on the site to supervise the progress of the fracturing work. The Xinjiang Project Department and the Fracturing Technology Center continue to strengthen the integrated operation mechanism and management model, coordinate the mutual coordination of the participating construction teams, actively connect various processes, and achieve unified command and efficient advancement.
Xinjiang Project Department
In the early stage of construction, the company's Xinjiang project department comprehensively carried out on-site safety risk inspections, conducted patrol inspections of equipment and facilities, and eliminated hidden dangers in a timely manner. We also strengthened various basic work such as summary and analysis of previous years' fracturing construction and employee safety training to further ensure construction quality and safety and ensure safe and smooth fracturing construction.
At the same time, the project department actively organized and held an operation safety and communication coordination meeting on site, where professional and technical personnel explained in detail the key and difficult processes during the construction period. The construction tasks such as pre-fracturing well access, actual ash surface detection, pipe scraping and circulating well cleaning were completed safely and efficiently, and set a new record for the company's ash injection construction in the Shengli western exploration area under high temperature, high pressure and ultra-deep conditions, achieving New breakthrough in ultra-deep well ash injection technology.
Fracking Technology Center
The Fracturing Technology Center operated in advance around the well's difficulties such as high construction pressure, many cooperating units, and difficult construction. It arranged for some members of the Xinjiang fracturing team to return to Xinjiang to survey the site in advance, and transferred 10 pump trucks and related cadres from eastern Shengli The employees cooperated with the construction of the well to fully meet the construction needs of the well's large scale and high displacement at 140MPa level.
Before the start of construction, the center continuously optimized the site layout in accordance with the requirements of the early technical seminars, reasonably placed fracturing trucks, liquid storage tanks and other equipment and facilities, and arranged 2 sand mixing trucks + 1 liquid supply skid + 3 sets of 140MPa high-pressure manifolds The "2+1+3" main structure layout of equipment and facilities ensures the stability of liquid supply and the reliability of unit connections during construction.
At the same time, for the first time, this work area adopts a "1-to-3" hydraulic control system in which one set of hydraulic control sources synchronously controls the opening and closing status of three sets of hydraulic control cocks, which greatly improves the reliability and switching efficiency of the remote hydraulic control system. During the construction, all units cooperated tacitly to ensure the seamless connection of various processes. Finally, after more than 2 hours of continuous hard work, the well's fracturing reservoir stimulation task was completed safely, with high quality and efficiency.