Dissolva-Perf

Overview

•Provides full wellbore integrity until a pre-determined time.

•Ports dissolve to allow communication to the formation.

•Variable dissolve rates can be achieved by changing material compositions or wellbore fluids.

•Provides a low-cost alternative to perforating and mechanical sleeves.

•Simulate any SPM / Phasing / Shot Density

•100% successful initiations

Applications

•Multi-stage frac operations using coiled tubing w/ isolation tool

•Full-wellbore stimulations

•Single or Multi-stage toe initiation

• Setup to dissolve in days to weeks
• Dissolve one or more subs at the same time
• Simulate first stage cluster
• Pressure test to MACP during well integrity period
• Begin fracturing operations

• Setup to dissolve in days or weeks
• Pressure test to MACP during well integrity period
• RIG w/ Cup-Cup tools for single point stimulation

• Setup to dissolve in days to weeks
• Pressure test to MACP during well integrity period
• Continuous frac ops
• Drop pods to isolate treated intervals and divert proppants to new clusters
• Ideal for longer laterals where coil and wireline cannot reach

5-Stage Toe Cluster Deployment – Duvernay

Test Plan

• 6 well completion program
• 5 wells utilized conventional PnP methodology for first stage completion
• 1 well, 5 stage cluster of Disolva-perf subs installed

Highlights

• 100% isolation during installation and cementing
• Achieved required hold and dissolve time
• Full open access of all ports to formation
• no restrictions in flow area
• Higher than average treating rate
• Outperformed the perforating stages

• Early time pressure reduction, potentially perforation/cement erosion and critical frac path being established
• Higher treating rates could be due to no stress cage effects created during ballistic perforating events
• Results indicate stage 1 behaved in similar fashion to standard design

18-stage, Coiled Tubing Cup Frac Operation

• 100% success
• One screen out mid-stage. Correlated to lover quality reservoir
• Average treating rate and pressure same as conventional methods (perforating, burst ports)

Time Savings: 1.2 Days

Cost Savings: 50%/stage