This single trip system, consisting of a CX-2 Bridge Plug, Gator
perforating tool and components, a drop ball circulation sub and a CXRTP
was run in on 5 1/2" pipe into the 9 5/8" 53.5# casing. The CX-2 was
set, released and pressure tested at 3,810 ft. The string was then picked
up to 2,720 ft and the Gator tool was functioned to hydromechanically
perforate, achieving 4 radial perforations, 90 degrees apart to ensure
good radial coverage at and then again at the lower perforation area
at 3,780 ft. The perforations have a large TFA and push out into the
outer annulus, helping the centralise the casing for more effective
annular cement displacement. The CX-RTP was then set at 3,760 ft
and circulation was then confirmed through the perforations using
the B annulus. After confirmation of the circulation path, the drop ball
circulation sub was opened to isolate the Gator tool below and cement
was pumped and squeezed into the perforated outer / B annulus. A
1.Trip the BHA to bott om (it may have a ball on seat or it might be just a rotational set bridge plug)
2.Pressure up to start setting of the bridge plug or set plug by rotation
Pressure test bridge plug.
3.Move to first Gator Perforation
Flow fluid down string to close VCV
Continue to pressure up on Gator to shear (super shear) at approximately 3500 PSI make a cut at 4000 psi
4.Equalize by squatting on ULS and move out of cuts, establish feed rate into cuts down annulus
5.Move to upper perforation close VCV and make cut
6.Equalize and move string, place packer between cuts and establish feed rate
7.Once you have feed rate into both sets of perforations set packer between and circulate clean staying below VCV closing rate
8.Once clean fluids back to surface drop ball for TBD or circulation sub and start with packer unset
9.Set packer in position for cement job and cement (part of the B annulus) unset packer and pump balanced cement plug to stop u tubing
10.POOH