Rotating Blowout Preventer / Rotating Control Head

Alat ini biasanya tambahan yang dipasang pada kepala sumur, berfungsi untuk mengatasi terjadinya kick dengan tetap menjalankan proses pengeboran. Terdapat suatu karet pembatas (seal) yang berfungsi agar fluida kick tidak keluar dari wellhead, karet tersebut membatasi ruang antara lubang wellhead degan rangkaia pipa bor. Pada saat terjadi kick, fluida kick tersebut dialirkan keluar melalui suatu valve dengan tetap menjalakan operasi pemboran hanya saja RPM tidak dapat secepat keadaan biasanya saat tanpa RBOP.

Gambar disamping menunjukkan aliran fluida kick saat dikeluarkan agar tidak terjadi penumpukan tekanan fluida tersebut.

Gambar Rangkaian Rotating BOP / Rotating Control Head

Macam-Macam Spesifikasi RBOP

Specification:Max. Dynamic Pressure: 17.5MpaMax. Static Pressure: 35MpaMax. Rotary Speed: 100 rpmCenter Pipe Size: 190mmWorking Temperature: -18 - 121 DegCWorking Medium: Drilling fluid, crude oil, gasBottom Flange size:13-5/8" -5000psi,Side FLange size: 7-1/16"- 5000psi,Standard: SY/T6730-2008, NACEMR01-75,APIspec16A/ISO1353The Rotating Assembly can interchangable with Weatherford Williams Model 7100.

Model 8068For 16 and 20 BOP stacks, and mounting directly to conductor pipe.

SIZE LOWER FLANGER MAXIMUM BORE(A) SIDE OUTLET HEIGHT

W/STD BUSHING W/SHORT BUSHING

16" 16" 2000# 16 3/4" ( 425.45mm ) 8" 3000# 42 3/4" 36 5/8"

20" 20" 2000/3000# 20 3/4" ( 527.05mm ) 8" 3001# 42 3/4" 36 5/8"

30" None 28 3/4" ( 730.25mm ) None 25 3/4" 19 5/8"

30"/36" None 26 9/32" ( 667.54mm ) None 26 3/4" 19 5/8"

KELLY BUSHINGS AVAILABLE: 3 1/2" Hex or Square, 4 1/4" Hex or Square.and 5 1/4 Hex only.STRIPPER RUBBERS AVAILABLE: 2 7/8",3 1/2", 4 1/2", 5" and 5 1/2" ( Stationary casing Stripper Rubbers From 6 5/8"thru 10 3/4" on special order)

Model 7068 For 10, 12, and 13 5/8 BOP stacks.

Spsesification:SIZE LOWER FLANGER MAXIMUMBORE(A) SIDE OUTLET HEIGHT

W/STDBUSHING W/SHORTBUSHING

10"10" 3000/5000#combination11 1/4"(285.75mm)6" 2000#36"29 7/8"

10" SHORTY 10" 3000/5000#combination11 1/4" (285.75mm) 7" Threaded (Male)_24 3/8"

12"12" 3000#14" (355.6mm) 6" 2000#36"29 7/8"

13 5/8"13 5/8" 5000#13 5/8" (346mm) 8" 2000#38"31 7/8"

KELLY BUSHINGS AVAILABLE: 3 1/2" Hex or Square, 4 1/4" Hex or Squareand 5 1/4 Hex only.STRIPPER RUBBERS AVAILABLE: 2 7/8",3 1/2", 4 1/2", 5" and 5 1/2" ( Stationary casing Stripper Rubbers From 6 5/8"thru 10 3/4" on special order)

Model 7368 For 6 BOP stacks.

Spesification :

SIZE LOWER FLANGER MAXIMUMBORE(A)

6"6" 2000/3000/5000#7 1/16" (179.39mm)

SIDE OUTLET HEIGHT

4" 2000/3000# combination23 7/8"

BUSHINGS AVAILABLE: 3 1/2" Hex or SquareSTRIPPER RUBBERS AVAILABLE: 2 3/8", 2 7/8", and 3 1/2"