Drift Catcher Specifications

Connections Available
Available in all common DP connections from stock DSTJ, HT, NC, VAM, VX, H533, XT as well as custom sizes.

Common Drifting OD/ID specifications supplied

Pipe	A - Drift OD	B- Catcher ID
5.5"	3.25”	3.17”
5.0"	2.60”	2.52”
4.0"	2.25”	2.20”
TTRD	1.75”	1.67”

Drift Confirmation Pressure Table (Mud 10ppg)
Chokes (C) can be fitted according optimum pressure characteristics, although in most cases the default fitting will suit most applications. To convert to the psi for the actual mud weight simply ratio up e.g. for 13ppg mud multiply pressure in table by 1.3 to get the actual pressure.

C - Choke	1"	24/32"	22/32"	18/32"
100 gpm	9 psi	30 psi	43 psi	100 psi
150 gpm	22 psi	70 psi	100 psi	220 psi
200 gpm	40 psi	125 psi	175 psi	410 psi
250 gpm	60 psi	190 psi	270 psi	625 psi
300 gpm	87 psi	275 psi	390 psi
350 gpm	119 psi	375 psi	530 psi
400 gpm	155 psi	490 psi	690 psi
425 gpm	174 psi	550 psi
450 gpm	196 psi	620 psi
475 gpm	218 psi	690 psi
500 gpm	242 psi	765 psi		ideal range

 

 

 

 

 

 

 

Customers anticipating extended pumping out of hole should request a larger choke and avoid using the volumetric drift in those applications.