Operations Manual
RST PC Field Software
Not Required
PC software used for hydraulic calculations, downlinking, downlink training, and manual downlink verification.
http://dtechdrillingtechnical.com/software/dtech-field- software/publish.htm
Appendix C: Tool Specifications
D-Tech RST Specifications
RST475
RST500
RST650
RST675
HDT675 9
RST800
RST900
RST900 PLUS
RST1100
5 7 / 8 to 6½ (149.225 to 165.1)
6¾ (171.45)
7 7 / 8 (200.025)
9 7 / 8 to 10 8 (250.825 to 269.875) 5 /
16 to 18 1 / 8 (406.4 to 460.375)
8½ to 8¾ (215.9 to 222.25)
8½ to 8¾ (215.9 to 222.25)
12¼ to 12½ (311.15 to 317.5)
13½ (342.9)
Hole size, in. (mm)
11.5 (3.50) w/o stabilizer
11.5 (3.50) w/o stabilizer
15.637 (4.766) w/ stabilizer
13 (3.96) w/ stabilizer
13.09 (3.99) w/ stabilizer
14.91 (4.54) w/o stabilizer
12.87 (3.92) w/o stabilizer
12.87 (3.92) w/o stabilizer
15.55 (4.74) w/o stabilizer
Tool length, ft (m)
Nominal OD, in. (mm)
4.75 (120.65)
5.00 (127)
6.50 (165.10)
6.75 (171.45)
6.75 (171.45)
9 (228.6)
9 (228.6)
9 (228.6)
9 (228.6)
400,000 (1,800,000)
400,000 (1,800,000)
1,100,000 (4,900,000)
1,200,000 (5,300,000)
1,200,000 (5,300,000)
1,400,000 (6,200,000)
1,500,000 (6,700,000)
1,500,000 (6,700,000)
1,500,000 (6,700,000)
Max overpull, lbf (N)
8,000 10,846)
8,500 (11,525)
16,000 (21,693)
16,000 (21,693)
20,000 (27,116)
55,000 (74,570)
55,000 (74,570)
65,000 (88,128)
65,000 (88,128)
Max torque-at-bit, ft-lbf (N·m)
Max weight-on-bit, lbf (N)
Drill bit limited
Drill bit limited
Drill bit limited
Drill bit limited
Drill bit limited
Drill bit limited
Drill bit limited
Drill bit limited
Drill bit limited
Bit connection, in.
3½ Reg
3½ Reg
4½ Reg
4½ Reg
4½ Reg
6 5 / 8 Reg
6 5 / 8 Reg
6 5 / 8 Reg
7 5 / 8 Reg
Max DLS passthrough - nonrotating (rotating), °/100 ft (°/30 m) 1
25 (15)
25 (15)
16 (10)
16 (10)
20 (14)
10 (7)
10 (7)
10 (7)
10 (7)
170 to 400 (643 to 1,514)
170 to 400 (643 to 1,514)
300 to 670 (1,135 to 2,540)
300 to 670 (1,135 to 2,540)
300 to 670 (1,135 to 2,540)
410 to 1,200 (1,552 to 4,550)
410 to 1,200 (1,552 to 4,550)
410 to 1,200 (1,552 to 4,550)
410 to 1,200 (1,552 to 4,550)
Flow range, gal/min (L/min) 2
Max mud density, lbm/gal US (kg/L) 3 20 (2.39)
20 (2.39)
20 (2.39)
20 (2.39)
20 (2.39)
20 (2.39)
20 (2.39)
20 (2.39)
20 (2.39)
Material dependent
Material dependent
Material dependent
Material dependent
Material dependent
Material dependent
Material dependent
Material dependent
Material dependent
Chlorides, ppm 4
Max LCM concentration, lbm/bbl (kg/L) 5
30 (0.13)
30 (0.13)
50 (0.19)
50 (0.19)
50 (0.19)
50 (0.19)
50 (0.19)
50 (0.19)
50 (0.19)
9 to 12
9 to 12
9 to 12
9 to 12
9 to 12
9 to 12
9 to 12
9 to 12
9 to 12
pH 6
Max sand content, %
1
1
1
1
1
1
1
1
1
Max pressure, psi (MPa)
20,000 (137.9)
20,000 (137.9)
20,000 (137.9)
20,000 (137.9)
20,000 (137.9)
20,000 (137.9)
20,000 (137.9)
20,000 (137.9)
20,000 (137.9)
Max temperature, °F (°C)
302 (150)
302 (150)
302 (150)
302 (150)
302 (150)
302 (150)
302 (150)
302 (150)
302 (150)
Max operational rev/min
330
330
330
330
400
230
230
230
190
Max DLS capability, °/100 ft (°/30 m) 7
8
8
8
8
12
5
5
5
3
3½ IF (NC38) or XT39 3½ IF (NC38) or XT39 4½ IF (NC50)
4½ IF (NC50)
4½ IF (NC50)
6 5 / 8 Reg
6 5 / 8 Reg
6 5 / 8 Reg
7 5 / 8 Reg
Up-hole/top connection, in. 8
¹ Contact your D-Tech rep if your DLS exceeds what is provided. ² Dependent on mud density. 3 Dependent on mud properties 4 >50,000 ppm requires the RST to be surface-flushed/externally cleaned with freshwater post-run. High-chloride resistant material options available on request, contact D-Tech.
5 Subject to the type of lost circulation material (LCM), medium-sized LCM. For specific materials, contact D-Tech. 6 For silicate fluid systems, contact D-Tech. 7 Dependent on application, formation, bit design, run parameter, etc. 8 Alternative top connections are available on request. 9 HDT BHA configuration dependent on application requirements.
© D-Tech, 2023. All rights reserved. DT0001 / 09/23 www.dtechdrilling.com 1. Contact your local D-Tech rep if DLS exceeds what is provided 2. Dependant on mud density 3. Dependant on mud properties 4. >50,000 ppm requires surface flushing/external cleaning of RST WITH Fresh water post run. High Chloride resistant material options available. Contact D-Tech 5. Subject to type of Lost Circulation Material (LCM), medium sized LCM. For specific materials contact D-Tech. 6. D-Tech should be contacted for Silicate fluid systems 7. Dependant on application, formation, bit design, run parameters etc. 8. Alternative top connections are available on request. 9. HDT BHA configuration dependent on application requirements
OPS-FIELD-001 | Rev. H
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