Plug@Perf technology provides
One of the most promising methods of multistage hydraulic fracturing.
The technique combines the installation of insulating plugs and cumulative perforation in one run, which
- ntly reduces operation time;
- improves overall well completion efficiency.
The key feature of the technology is the addressable initiation of perforators, allowing to control the process of isolating and opening up target intervals of the reservoir.
This equipment was used to complete:
- Multistage hydraulic fracturing on 150 wells
- 4500 clusters
Operating principle:
Perforation of several intervals and installation of a packer plug in one trip without discharging the well results in minimizing downtime and increasing overall work efficiency
Moving-in process:
lowering the complete internal-flush assembly into a borehole on a geophysical cable to a specified depth:
- in a vertical and/or inclined part:
under its own weight; - in a horizontal part:
using hydraulic fracturing pumps to ensure the movement of the assembly by the action of the fluid flow.
Process cyclicity
Пafter completion of the hydraulic fracturing operation on one interval, the layout moves to the next target area. The “processing – moving” cycle is repeated until all planned zones have been processed according to the work plan.
Target initiation system:
allows for precise, selective opening of several perforation intervals per run and installing the packer plug without lifting layout on the surface, which significantly reduces the time required for multi-stage hydraulic fracturing.
Key benefits of the supplied plug&perf assembly:
average preparation time for one stage of hydraulic fracturing (installation of packer plug and perforation) is 4–6 HOURS for horizontal wells up to 6000 m long.
collar locator and target initiation system eliminate the human factor and ensure precise operations flow according to the plan.
possibility of using in complex geological and technical conditions: at abnormally high reservoir pressure with wellhead pressure control devices at 100 MPa and at high reservoir temperature up to 150°C.
possibility of using in production columns with the diameters of 114 mm/140 mm/146 mm, including behind-the-casing cementing. Adjustment to any column diameter and any geological conditions is possible.
