Background
- A Marginal operator is required to carry out overbalance perforation to access 2 targeted reservoirs on one of their land wells
- The formation was unconsolidated and thus required that the perforation support Gravel pack placement
- Wellpro TCP Guns were loaded as per client perforation interval and mobilized to the location along with firing heads and ancillary equipment
Operation
- 7” Guns loaded 18 SPF with HMX Super Hole charges at XX-degree phasing were prepared as per the client-provided intervals
- The guns were made up of a Mechanical Firing head with a drop bar firing system
- As per safety protocol, sufficient spacers were run on the top gun as well as to separate the upper and lower peroration intervals
- The BHA was run in the well along with other ancillary tools
- On correlating the guns to depth with the Correlation Pup Joint, the firing bar was dropped from the surface to activate the firing head and detonate the guns.
Achievements
- The perforating guns were positioned on depth in both runs and detonated successfully with sufficient surface indication
- Upon pulling out of the hole, all shots were fired and in scallop.
- Total Interval of 40 feet was perforated with the HMX Super hole charge creating large entry hole and deep penetration for maximum reservoir production
Tools
- 7” 12 SPF HMX SH guns
- Model II-D Mechanical Firing Head
- 3-1/2” Balanced Isolation