Gun Brake System -- Monobore - (GBS)Guardian's Gun Brake System (GBS) is designed to prevent any movement of the perforatingstring during perforating operations. This prevents the gun from being blown uphole duringunderbalanced perforating operations, and/or protects the weakpoint when larger, heavierguns are being fired. This can prevent breakage of the weakpoint and/or damage to the cablewhich could result in expensive and time-consuming fishing operations. The GBS anchors the gun-string via 3 sets of slips. The tool is run into the wellbore with theslips retracted. Then, once on depth, the tool is motored open and anchored in the casing.During detonation, any shock from the gun (upwards or downwards) is transmitted through theslips to the casing, thereby increasing the anchoring force. The tool can be opened and closed as many times as required in the wellbore and the modularnature of the Guardian system means that it can be combined with other tools - e.g. anAddressable Release Tool (ART), Voltage Protection Module (VPM), or Powered Swivel Joint(PSJ).

Product featuresBi-Directional slips for upwards and downwards anchoring>Back up shear pin overpull release to close slips>Tool is fully set before the guns are fired so that all the energy is efficently transferred to the>casingCombinable with other tools to allow optimum tool string configuration>

Product applicationsTo protect the tool, weak-point and cable from perforating shock and damage>Suitable for high under-balanced perforating>Suitable for hanging off heavy guns to protect the cable head>

Gun Brake System -- Monobore - (GBS)

> SpecificationsGBE2-B GBE2-A GBE2-D GBE2-H GBE2-K GBE2-L

Part Number 148-99033 148-99035 148-99037 148-99039 148-99041 148-99042

Diameter 2 1⁄8" / 54mm 2 3⁄4" / 70 mm 2 1⁄8" / 54mm 2 3⁄4" / 70 mm 2 1⁄8" / 54mm 2 3⁄4" / 70 mm

Length 39.0" / 991 mm 23" / 584 mm 39.0" / 991 mm 23" / 584 mm 39.0" / 991 mm 23" / 584 mm

Temperature 177C / 350F 177C / 350F 177C / 350F 177C / 350F 177C / 350F 177C / 350F

Weight in Air 24 lbs / 10.9 Kg 38 lbs / 17.24 Kg 24 lbs / 10.9 Kg TBA TBA TBA

GBM Mate / Conn GBM-A/D / GO-B GBM-B/C/H / GO-B GBM-F / SLB CAL-G GBM-J/I / CAL-G GBM-L / BA2-A3 GBM-M / BA-A2

> SpecificationsGBM-D GBM-A GBM-B GBM-C GBM-H GBM-N

Part Number 148-99008 148-99004 148-99005 148-99006 148-99018 148-99043

Diameter 2 1⁄8" / 54mm 2.6" / 66 mm 3.6" / 91 mm 4.4" / 111 mm 5.6" / 142 mm 9 5⁄8" /

Length 28" / 711 mm 27" / 685 mm 27" / 685 mm 30" / 762 mm 30.0" / 762 mm cell data

Operating Diameter 2.2-2.65" / 56-67mm

2.7-3.1" / 69-79mm

3.7-4.1" / 94-104mm

4.5-5.1" / 114-129mm

5.9 - 6.5" / 149 -165 mm cell data

Anchoring Force 15,000 lbs 15,000 lbs 20,000 lbs 20,000 lbs 20,000 lbs 20,000 lbs

Weight in Air 22 lbs / 10 kgs 42 lbs / 19 kgs 55 lbs / 25 kgs 81 lbs / 37 kgs 120 lbs / 55 kgs cell data

GBE Mate / Conn GBE2-B / GO-B GBE2-B / GO-B GBE2-A / GO-B GBE2-A / GO-B GBE2-A / GO-B GBE2-A / GO-B

> Common Specifications

FishingStrength 30,000 lbs Pressure (Max) 15,000psi

FeedthruCurrent (Max) 6A Bending Load 7,500" lbs