MASTER BUSHING AND CASING BUSHING

MASTER BUSHING

Master Bushing

MASTER BUSHING SELECTION CHART

Make Size MPCH MSPC MSP/MDSP
Complete Body Only Complete Body Only Complete
API Standard  27 1/2 - - 1804-1 1808-1 5429-1
EMSCO  T-2750 - - 1804-1 1808-1 5429-1
G-27 1/2  - - 1804-5 1808-5 5429-5
H-27 1/2  - - 1804-2 1808-2 5429-2
K-27 1/2, KS, P1  - - 1804-3 1808-3 5429-3
T-3750 (S/N 1-48)  6600-2A 6601-2A - - -
T-3750/T-4950 (49 /UP)  6600-2 6601-2 - - -
Garnder Denver  RT 27 1/2  -   1804-1 1808-1 5429-1
RT 37 1/2  6600-7 6601-7 - - -
IDECO 27 1/2 - - 1804-7 1808-7 5429-7
37 1/2 6600-4 6601-4 - - -
National MS 27 1/2, A & B 27 1/2  - - 1804-5 1808-5 5429-5
C-365 6600-5 6601-5 - - -
C-375 6600-1 6601-1 - - -
Oilwell A-27 1/2  - - 1804-1 1808-1 5429-1
A-37 1/2  6600-3 6601-3 - - -
Wirth  27 1/2 - - 1804-1 1808-1 5429-1
37 1/2 6600-3 6601-3 - - -

MPCH MASTER BUSHING

The 37 1/2" MPCH is a Pin Drive Hinged Master Bushing specially designed for floating and semi-submersible drilling operations.

With insert bowl No. 3 and optional insert bowls No. 1 and No. 2, the MPCH will handle tubulars from 2 3/8" to 13 3/8" OD. Unit comes complete with No. 3 insert bowl, bit breaker adapter plate and lifting sling.

Weight complete 4200 lbs (1905 kg); body only 3200 lbs (1452 kg).

MPCH Master Bushing MPCH Master Bushing with 3# Bowl and SDXL Slips
  MPCH Bushing with 3# Bowl and SDXL Slips  

For Use With Rotary Table

Manufacturers Table Sizes w/ No.3 Bowl, sling & BB Adapater w/ No.3 Bowl, sling & BB Adapeter
P/N Weight P/N Weight
lb kg lb kg
EMSCO 37 1/2 (S/N 1-48) 6600-2A 4325 1962 6601-2A 3325 1508
  37 1/2 (S/N 49 up 49 1/2) 6600-2 4149 1882 6601-2 3149 1428
Oilwell 37 1/2 to 49 1/2 6600-3 4245 1925 6601-3 3245 1472
IDECO 37 1/2 6600-4 4015 1821 6601-4 3015 1367
National 36 1/2 6600-5 3910 1773 6601-5 2905 1318
  37 1/2 to 49 1/2 6600-1 4029 1827 6601-1 3029 1374
Wirth 37 1/2 to 49 1/2 6600-6 4245 1925 6601-6 3245 1472

MPCH Bushing Parts

Description  Qty P/N Weight
lb kg
Insert Bowl No.3 (Split) extended API  1 6608 625 283
Hinge pin, removable  1 6604 80 36
Hinge Pin, stationary w/lube fitting  1 6605 75 34
Hinge pin retainer  1 6606 2 oz 57
Eccentric pin  2 1014 2 0.9
Eccentric pin retainer  2 50106-22 2 oz 57
Lock 2 1016 3 1
Drive Hole Bushing w/Locking Pocket 4 3699 7 3
Liffting sling  1 6699 150 68
Bit Breaker Adapater Plate  1 1816 220 100
Insert Bowl No.1 (Split) for 13 3/8 & 11 3/4 casing  1 6610 336 152
Insert Bowl No.2 (split) for 10 3/4 & 9 5/8 casing  1 6609 470 213
Insert Bowl No.3 (split) extended API for 8 5/8 and samller size casing and drill pipe  1 6608 625 283

MDSP MASTER BUSHING

MDSP Medium Duty Pin Drive Split Master Bushings17 1/2" and 20 1/2" Medium Duty Pin Drive Split Master Bushing are designed for shal low to medium depth service.

Extended API Taper
The MDSP Master Bushings have an extended APT taper in the bowls that provides 50 % more slip support than do square drive bushings.

Varco SDML slips, used in the MDSP master bushing are a proven combination that can handle drilling to 15,000 feet.

Note : Varco BJ does not recommend using split master bushings in rotary tables with more than 3/16" (5 mm) wear in the rotary table bore. Rebuild rotary bore or purchase a solid type bushing.

Units come complete with bit breaker, adapter plate and lifting sling.

MDSP Ordering Information

Manufacturer R.Table sizes w/sling & BB Adapter w/o Sling & BB Adapter
P/N weight P/N weight
lb kg lb kg
API 17 1/2 70517-1 737 334 70526-1 577 262
20 1/2 70540-1 1100 499 70539-1 924 419
Bethlehem 17 1/2 70527-2 737 334 70526-2 577 262
B175 70527-3 737 334 70526-3 577 262
B-210 (5-in flange) 70540-2 1100 449 70539-2 924 419
B-210 ( 5 1/2 in flange) 70540-3 1100 449 70539-2 924 419
Brewster OB-18 & RSH-18 70527-4 737 334 70526-4 577 262
Continenal T1750 70527-1 737 334 70526-1 577 262
Emsco L-17 70527-5 737 334 70526-5 577 262
O-17 1/2 & P-17 1/2 70527-6 737 334 70526-6 577 262
T2050 70540-4 1100 449 70539-4 924 419
20 1/2, O, P, PJ, J, JA, JC, JAC, JACS, JAS, JCS, & JS 70540-5 1100 449 70539-5 924 419
Gardner Denver 20 1/2, JAB, JABS, JB, & JBS 70540-6 1100 449 70539-6 924 419
RT- 17 1/2 70527-1 737 334 70526-1 577 262
Haniel & Lueg L- 17 1/2 70527-1 737 334 70526-1 577 262
Ideco 17 1/4 70527-7 737 334 70426-7 577 262
17 1/2 & HS-175 70527-8 737 334 70526-8 577 262
20 1/2 70540-1 1100 449 70539-1 924 419
National 17 1/2, A175, & B-175 70527-9 737 334 70526-9 577 262
A205 & 20 1/2 70540-4 1100 449 70539-4 924 419
Oilwell A 17 1/2 70527-10 737 334 70526-10 577 262
17 1/2 70527-11 737 334 70526-11 577 262
A 20 1/2 70540-4 1100 449 70539-3 924 419
20 1/2 70540-7 1100 449 70539-7 924 419
21 & 21 A 70540-8 1100 449 70539-8 924 419

MSP MASTER BUSHING

MSP 27 1/2" Split Pin Drive Bushings are also available. With the larger rotary opening the standard No. 3 Extended API taper is used. This allows the use of extra-long SDXL slips required for heavier loads. Weight 1600 lbs (726 kg).

MSPC MASTER BUSHING

The 20 1/2" thru 27 1/2" MSPC is a solid Body Pin Drive Master Bushing designed for all drilling operations. The pin drive allows the kelly bushing to ride on top of the rotary table and permits extended bowls to be used for better slip back up. With the extended API insert bowl No. 3, the MSPC will handle tubulars from 2 3/8" to 13 3/8".
Unit comes with No. 3 insert bowl, bit breaker adapter plate and lifting sling.
For Rotary Table Size MSPC Weight lbs (kg):

20 1/2"& 21 complete, 1210 (549); body only 570 ( 259)
23 complete 1490 (676); body only 646 (293)
25-27 1/2" complete 1965 (891); body only 1110 (503)

MSPC Parts

Name of part Qty 20 1/2 & 21 23 27 1/2
P/N Weight P/N Weight P/N Weight
lb kg lb kg lb kg
Insert Bowl No.3 (split) extended API 1 1809 464 210 1810 620 281 1810 620 281
Eccentric Pin 2 1013 1 0.5 1014 2 0.9 1014 2 0.9
Lock 2 1811 1 1/2 0.7 1016 3 1 1016 3 1
Retaining pin for Lock Pin 2 1028 1/4 0.1 1018 - - 1030 - -
Drive Hole Bushings 4 1813 3 1/2 2 1814 7 3 1814 7 3
Lifting Sling 1 1021 40 18 1021 40 18 1021 40 18
Bit Breaker Adapeter Plate 1 1815 137 62 1816 220 100 1816 220 100

MSS MASTER BUSHING

17 1/2 thru 27 1/2 Solid Body Square Drive Master Bushing is designed for all drilling opetions. A 4 inch deep recess accommodates a square drive kelly bushing. Developed for use when a 10,000 ft well was considered deep, the MSS still serves a useful purpose where a large slip backup area is not required. With the extended API insert bowl No.3, the MSS will handle 2 3/8 thru 8 5/8 inch OD Drill pipe, drill collars, tubings, and casing. Insert bowl No.2 can handle tubular goods 9 5/8 and 10 3/4 inches OD. The MSS design, with its solid body, retains the correct API taper for medium and short rotary slips (Varco's SDML and SDS) under all load conditions. These slips receive correct backup and hold tubulars uniformly. The solid outer body takes all transverse loads and provides proper backing for the split inserts bowls allowing the rotary table to rotate freely, unipaired by transverse loads.

MSS Parts

Name of parts  Qty R. Table
17 1/2 20 1/2 & 21  22 & 23  27 1/2
Insert Bowl (API) Split  1 1011 1011 1011 1022
Lock Pin  2 1033 1014 1014 -
Lock 2 1015 1016 1016 -
Retaining Pin for Lock Pin  2 1017 1018 1029 -
Liffting Sling Assy  1 1021 1021 1021 1021
Insert Bowl No.1 (split) for 13 3/8 & 11 3/4 OD casing    - - - 2002
Insert Bowl No.2 (Split) for 10 3/4 & 9 5/8 OD casing    - - - 1026
Insert Bowl No.1 (split) extended API for 8 5/8 OD and samller    1024 1024 1024 1025

CU, CUL AND CB CASING BUSHING

CU, CUL and CB Casing Bushing are inserted directly into the rotary table and insure that the casing being run is perfectly alinged with the center of the hole. Models CU and CUL are solid bushings and Model CB is a split bushing. All of the bushings accept bowls of different sizes to accommodate a wide rang of casing. Using CMS-XL or CP-S slips, since these bushing fit into the rotary Table, the casing string can be easily rotated during cementing operations

 

 

Casing Bushing Selction Chart

Rotary Table Size (in) Make Casing Size (in) Casing Bushing & Insert Bowl P/N Weight
lb kg
17 1/2~20 1/2  All 11 3/4 & 13 3/8  CU 3102 470 213
All 9 5/8 & 10 3/4  CU W/Bowl No.1 1902 342 155
26 & 27 1/2  All 18 5/8 & 20  CUL 3103 938 425.5
16 CUL W/ Bowl 20 x 16 3104 562 255
11 3/4 & 13 3/8  w/Bowl No.1 3105 846 384
9 5/8 & 10 3/4  w/Bowl No.2 1902 342 155
2 3/8 & 8 5/8  w/Bowl No.3 1809 464 210.5
27 1/2 All 27 1/2 API  18 5/8 & 20  CB 6695 713 323
16 CB w/ Bowl 20 x 16 6127 572 259
11 3/4 & 13 3/8  w/Bowl No.1 6126 895 406
9 5/8 & 10 3/4  w/Bowl No.2 6114 252 114
37 1/2 ~ 49 1/2  NATIONAL 30 CB V11763 1100 499
26 CB 16454 1100 499
24 CB 11253 1200 540
23 CB 11252 1200 540
18 5/8 & 20  CB 10187 1600 726
16 w/Bowl 20 x 16 6127 572 259
11 3/4 & 13 3/8  w/Bowl No.1 6126 895 406
9 5/8 & 10 3/4  w/Bowl No.2 6114 252 114
EMSCO 30 CB 11633 1160 526
26 CB 89183-1 1100 500
24 CB 16542 1260 571.5
22 CB 11252-22 1120 509
18 5/8 & 20  CB for above 37 1/2 11553 1610 730
  CB for below 37 1/2 10190 1820 825.5
16 w/Bowl 20 x 16 6127 572 259
11 3/4 & 13 3/8  w/Bowl No.1 6126 895 406
9 5/8 & 10 3/4  w/Bowl No.2 6114 252 114
37 1/2 IDECO 30 CB 12092 1100 499
26 CB 74814-26 1452 605
24 1/2 CB 74814 1560 650
20 5/8 & 20  CB 10189 1670 757.5
16 W/Bowl 20 x 16 6127 572 259
11 3/4 & 13 3/8  w/Bowl No.1 6126 895 406

MASTER BUSHING ACCESSORIES

Bit Breaker Adapter Plate locates in the Master Bushing drive pin holes and provides a 13 9/16 inch square to accommodate bit Breakers.

Lifting Slings for removing and installing bushing and bowls.