HA

L902

3

HA

L902

4

HA

L902

5

CONVENTIONALSYSTEM

DEACTIVATORSYSTEM

ACTIVATORSYSTEMThe UnderReamer (URTM) tool is a heavy-duty tool for enlarging the

borehole significantly beyond the bit diameter. The UR tool offers a variety of options for well completion design because it can be selectively activated or deactivated downhole. The UR tool can enhance production by expanding the hole for gravel packing, scraping filter cake, plus enabling gas storage underground.

UnderReamer (UR™) Tool

OPERATING PRINCIPLE

Hydraulic force activates the cutter arms. With the pumps off, a return spring closes the arms. There is no locking device. A rack and pinion mechanism transmits the drive rod motion to open the arms, and stop blocks allow for two different arm opening angles, 90° and 35°.

These illustrations show three separate operations. Left. The UR tool is opened below the casing shoe where it enlarges the hole. Center. The UR tool is deactivated and is in the drilling-only mode. right. The UR tool is activated far below the casing shoe to begin hole enlarging while drilling.

downHoLe tooLs

Hole Enlargement

Three cylinder subs for three systems:• Conventional• Activator• Deactivator

A variety of cutter types and diamond options can optimize the UR tool for a wide variety of applications.

Interchangeable nozzles at arm-level provide cooling and cleaning of cutter arms.

Standard API, stress relieved connection

Hardfacing at the leading edge is part of robust construction. The main body is machined from a solid steel forging for uniform strength. UR body is designed to closely match the pilot diameter for good stability.

HAL902

7

Interchangeable nozzles allow variable hydraulic schemes.

HA

L902

6

© 2009 Halliburton. All rights reserved. Sales of Halliburton products and services will be in accord solely with the terms and conditions contained in the contract between Halliburton and the customer that is applicable to the sale. H03019 6/09

www.halliburton.com

downHoLe tooLs

UR 475body: 4-3/4”

6”8-1/2”

UR 600body: 5-3/4”

6”6-1/2”7”

8”8-1/2”8-3/4”9-1/4”9-7/8”

11”12”

13”14”

15”16”

UR 800body: 8-3/8”

9-7/8”10-5/8”

12-1/4”14-3/4”

16”17-1/2”

15”

UR 1200body: 12-5/32”

13-1/4”14”

14-3/4”15”

16”17-1/2”

18-1/2”19”

20”22”

24”26”

UR 1700body: 16-27/32”

20”22”

24”26”

32”

UnderReamer Tool Technical Specifications

UR TYPE UR475 UR600 UR800 UR1200 UR1700 IMPERIAL METRIC IMPERIAL METRIC IMPERIAL METRIC IMPERIAL METRIC IMPERIAL METRIC

Opening Range From 5 in. 127.00 mm 5-7/8 in. 158.75 mm 8-3/8 in. 216.00 mm 12-1/4 in. 311.15 mm 17-1/2 in. 444.50 mm

Up to 8-1/2 in. 216.00 mm 16 in. 406.40 mm 17-1/2 in. 444.50 mm 26 in. 660.40 mm 32 in. 812.80 mm

Top Connection Box 2-7/8 IF 2-7/8 IF 3-1/2 IF 3-1/2 IF 4-1/2 IF 4-1/2 IF 6-5/8 REG 6-5/8 REG 7-5/8 REG 7-5/8 REG

Bottom Connection Pin 2-7/8 IF 2-7/8 IF 3-1/2 IF 3-1/2 IF 4-1/2 IF 4-1/2 IF 6-5/8 REG 6-5/8 REG 7-5/8 REG 7-5/8 REG

Box End Fish Neck Diameter 4-1/8 in. 104.78 mm 5-3/4 in. 146.05 mm 6-1/2 in. 165.10 mm 8 in. 203.20 mm 9-1/2 in. 241.30 mm

Body Length (a) N/A N/A 16.89 in. 429 mm 22.83 in. 580 mm 25.20 in. 640 mm 25.63 in. 651 mm

Body + Sub Length (a+b) 12.01 in. 305 mm 30.91 in. 785 mm 38.20 in. 970 mm 44.02 in. 1,118 mm 45.87 in. 1,165 mm

Overall Make-up Length Body 61.50 in. 1,562 mm 52.00 in. 1,320 mm 74.61 in. 1,895 mm 85.51 in. 2,172 mm 103.38 in. 2,626 mm

Number of Arms 2 2 2 2 3 3 3 3 3 3

Torque to Make-up to Sub/BHA 10,000 ft-lbs 1,350 daN.m 16,000 ft-lbs 2,200 daN.m 23,000 ft-lbs 3,100 daN.m 41,000 ft-lbs 5,500 daN.m 62,000 ft-lbs 8,400 daN.m

Stabilized Body Diameter 4-3/4 in 120.65 mm 5-3/4 in. 146.05 mm 8-3/8 in. 212.73 mm 12-5/32 in. 308.77 mm 17-11/32 in. 440.53 mm

Stabilized Body Length 90 deg 5.51 in. 140 mm 6.10 in. 155 mm 9.84 in. 250 mm 11.42 in. 290 mm 14.17 in. 360 mm

35 deg N/A N/A N/A N/A 5.51 in. 140 mm 5.51 in. 140 mm 8.66 in. 220 mm

Approx. Shipping Weight 132 lbs 60 kg 220 lbs 100 kg 507 lbs 230 kg 992 lbs 450 kg 2,072 lbs 940 kg

Min. Operating Pressure 800 psi 55 bar 600 psi 41 bar 600 psi 41 bar 600 psi 41 bar 600 psi 41 bar

NOTE:1. Fishing neck length a) Fishing neck length of body b) Fishing neck length of upper sub

2. Make-up torque UnderReamer - BHA: use make-up torque of drill collars above UR.

UR 475body: 4-3/4”

6”8-1/2”

UR 600body: 5-3/4”

6”6-1/2”7”

8”8-1/2”8-3/4”9-1/4”9-7/8”

11”12”

13”14”

15”16”

UR 800body: 8-3/8”

9-7/8”10-5/8”

12-1/4”14-3/4”

16”17-1/2”

15”

UR 1200body: 12-5/32”

13-1/4”14”

14-3/4”15”

16”17-1/2”

18-1/2”19”

20”22”

24”26”

UR 1700body: 16-27/32”

20”22”

24”26”

32”

b

a

Any type and size are available on request.

HAL8967

HAL8968

HAL9011

HA

L896

6

Drill Bits and Services is the recognized industry leader in cutter technology. Its Deep Ring ClawTM cutter, pictured here, makes our downhole tools the most resistant to impact and abrasion.

For standard applications, the PDC cutter.

For medium-hard formations intercalated with hard layers, the mixed cutter is comprised of PDC cutters backed-up with diamond impregnated disks.

For hard abrasive formations, a fully diamond-impregnated cutting structure.