SJ Petro Workover Rig XJ50 Replacement Parts

1

Drawworks

SJ Petroleum Machinery Co.; XJ50 / Double drum / 250 HP; Groove Size 7/8" (22 mm); Sand Line size 9/16" (14.5 mm)

High-strength alloy steel (Q460) frame, 16Mn carbon steel drums, heat-treated alloy steel gears

1. Drum groove wear from wire rope friction; 2. Gear fatigue from high-torque cycles; 3. Bearing damage from insufficient lubrication.

1. Inspect drum grooves monthly per API 4F; 2. Use OEM-specified lubricants for gears/bearings; 3. Avoid overloading beyond 67.5 Ton capacity.

2

Prime Mover (Power Supply)

Cat C9 / SK 58.7; 325 HP; Transmission: Allison 4700 OFS; Auxiliary Brake: 122 Hydro brake

Cast iron (HT250) engine block, forged steel crankshaft, aluminum alloy cylinder heads

1. Piston wear from poor fuel quality; 2. Transmission clutch degradation from harsh shifting; 3. Hydro brake overheating from heavy use.

1. Use Cat-approved fuel and lubricants; 2. Shift smoothly to reduce clutch wear; 3. Monitor hydro brake temperature during extended operation.

3

Blue Strand Steel Wire Rope (Drilling Line)

2013 manufacture; 6x19S-IWRC-EIP-Ung / 22 mm (7/8"); Sand Line: 9/16" (14.5 mm)

High-carbon steel wires, galvanized coating, independent wire rope core (IWRC) for drilling line; fiber core (FC) for sand line

1. Fatigue from repeated bending over sheaves; 2. Abrasion from rig component contact; 3. Corrosion from oilfield moisture/chemicals.

1. Rotate rope regularly to distribute wear; 2. Clean and lubricate weekly with wire rope grease; 3. Replace per API 9B broken wire limits.

4

Mast

SJJ67.5, Telescopic; Height: 67.5 ft (29 m); Max Static Hook Load: 67.5 Ton; Max Load Capacity: 67.5 Ton

High-strength alloy steel (Q460) sections, bolted/welded construction, anti-corrosion epoxy coating

1. Structural fatigue from wind loads; 2. Corrosion from outdoor exposure; 3. Bolt loosening from rig vibration.

1. Inspect for cracks every 6 months via NDT (API 4F); 2. Retorque bolts weekly; 3. Lower during severe weather to reduce wind stress.

5

Carrier

Driving Type: 8x8; Power Supply: Same as Prime Mover; Max Speed: 60 km/h (Limiting: 45 km/h); Ground Clearance: 0.34 m; Axels: 2 front, 3 rear

High-strength steel frame, alloy steel axles, oil-resistant rubber tires, reinforced suspension components

1. Frame corrosion from oilfield debris/chemicals; 2. Axle wear from off-road operation; 3. Tire damage from sharp rocks/debris.

1. Clean frame regularly to remove debris; 2. Inspect axles/bearings monthly; 3. Use tire protectors in rocky terrain.

6

Crown Block

Model: TC67.5; Capacity: 67.5 Ton; Sheave Count: 3; Wire Rope Size: 7/8" (22 mm)

Alloy steel (Q355B) frame, hardened alloy steel sheaves, stainless steel (304) pins, galvanized fasteners

1. Sheave groove wear from rope friction; 2. Pin corrosion from moisture; 3. Fastener loosening from vibration.

1. Align with traveling block to reduce wear; 2. Lubricate sheave bearings every 50 operating hours; 3. Retorque fasteners weekly.

7

Traveling Block

SJ Petroleum Machinery Co., 2013; Model: YG 70-3; Capacity: 70 Ton; Sheave Count: 3 (23.3/4" - 605 mm dia.); Wire Rope Size: 7/8" (22 mm)

Alloy steel (40Cr) sheaves, stainless steel (304) pins, anti-corrosion coated frame, high-load bearings

1. Sheave wear from continuous rope contact; 2. Bearing failure from vibration; 3. Frame corrosion from well fluids.

1. Inspect sheave grooves for uneven wear quarterly; 2. Maintain proper lubrication; 3. Avoid side-loading during hoisting.

8

Winch

Models: YJ-5T 2A & YJ-3T 4A; Quantity: 2; Power Driven: Hydraulic; Wire Rope Sizes: 5/8" (SN: 0657ASM2013/1), 1/2" (SN: 0655ASM2013)

Alloy steel (16Mn) drums, 45# steel hydraulic cylinders, nitrile rubber (NBR) seals, PTFE wear rings

1. Seal leakage from hydraulic fluid contamination; 2. Drum wear from rope friction; 3. Hydraulic component damage from pressure spikes.

1. Filter hydraulic fluid (ISO 12103 Class 18/15); 2. Inspect rope for fraying before use; 3. Maintain pressure within rated limits.

9

Handling Tools - Elevator Link

Manufacturer: Juli

Alloy steel (4140), heat-treated for high tensile strength, anti-corrosion coated

1. Fatigue from repeated load cycles; 2. Wear from elevator contact; 3. Corrosion from oilfield environments.

1. Inspect for cracks before each use; 2. Avoid overloading beyond 100 Ton compatibility; 3. Apply anti-corrosion grease regularly.

10

Handling Tools - Tubing Elevator

Manufacturer: BVM; Type: Center latch 100 Ton; Sizes: 2-3/8", 3-1/2", 4-1/2"

Alloy steel (4340) body, hardened steel latches, NBR seals for dust/water protection

1. Latch wear from tubular contact; 2. Body corrosion from well fluids; 3. Seal damage from debris.

1. Inspect latches for proper engagement; 2. Clean after contact with well fluids; 3. Use only for specified tubing sizes.

11

Handling Tools - Sucker Rod Elevator

Manufacturer: BVM; Type: SR; Sizes: 5/8", 3/4"-7/8", 1"

Alloy steel (17-4 PH), precision machined latches, anti-wear coating on contact surfaces

1. Latch wear from small-diameter rod contact; 2. Fatigue from frequent use; 3. Corrosion from moisture.

1. Match elevator size to rod diameter; 2. Inspect latches for wear weekly; 3. Store in dry conditions when not in use.

12

Handling Tools - DC Elevator

Manufacturer: BVM; Type: Center latch TA; Capacity: 100 Ton; Size: 4-3/4"

Forged alloy steel (4340), heat-treated for impact resistance, galvanized finish

1. Structural fatigue from heavy loads; 2. Latch damage from improper engagement; 3. Corrosion from outdoor exposure.

1. Verify load capacity before use; 2. Ensure latches are fully engaged; 3. Inspect for cracks via NDT annually.

13

Handling Tools - Sucker Rod Hook

Manufacturer: BJ; Type: Spring type; Capacity: 35 Ton

Alloy steel (40Cr) hook body, spring steel internal components, anti-corrosion coating

1. Hook wear from load contact; 2. Spring fatigue from repeated use; 3. Corrosion from well fluids.

1. Inspect hook throat for wear monthly; 2. Avoid side-loading; 3. Clean and lubricate spring mechanism quarterly.

14

Handling Tools - Tubing Power Tong

Manufacturer: Yancheng Teda; SN: XQ140/12A; Model: XQ140/12A; Range: 2-7/8" – 5-1/2"

Alloy steel (Q355B) frame, hardened steel jaws, hydraulic components (45# steel), NBR seals

1. Jaw wear from tubular gripping; 2. Hydraulic seal leakage; 3. Frame fatigue from vibration.

1. Replace jaws when wear exceeds 1mm; 2. Filter hydraulic fluid regularly; 3. Align tong with tubing to avoid jaw damage.

15

Handling Tools - Sucker Rod Power Tong

Manufacturer: Westco; SN: 129; Model: M40; Range: 5/8"-1-1/8"

Lightweight alloy steel frame, precision-machined jaws, stainless steel (304) fasteners

1. Jaw wear from small rod diameters; 2. Fastener loosening from vibration; 3. Corrosion from moisture.

1. Use proper jaw size for rod diameter; 2. Retorque fasteners weekly; 3. Clean and dry after use.

16

Weight Indicator

Manufacturer: Hubei Jianghan Petroleum Instrument; Model: JZ100A; SN: K0316

Aluminum alloy housing, stainless steel (316) pressure sensor, reinforced plastic internal components

1. Sensor damage from pressure spikes; 2. Housing corrosion from oilfield chemicals; 3. Electrical component failure from moisture.

1. Calibrate quarterly per API 7K; 2. Protect from chemical splashes; 3. Keep electrical connections dry.

17

Dead Anchor

Manufacturer: Hubei Jianghan Petroleum Instrument; Model: JZG15A

High-strength carbon steel (Q355B), welded construction, hot-dip galvanized for corrosion resistance

1. Corrosion from underground/moisture exposure; 2. Weld fatigue from tension; 3. Damage from installation/removal.

1. Inspect welds before installation; 2. Ensure proper burial depth for stability; 3. Inspect for corrosion annually.

1

Mud Pump

SJ Petroleum Machinery Co.; Model: NBQ25-380/SNQ500-15; Working Pressure: 3571 PSI; Rating: 2000 RPM; Flow: 396 GPM; Power Driven: Caterpillar

Alloy steel (4140) fluid end, forged steel crankshaft, aluminum alloy crossheads, chrome-plated plungers

1. Plunger wear from abrasive mud; 2. Valve seat damage from debris; 3. Fluid end corrosion from acidic mud.

1. Install suction filters to remove debris; 2. Use corrosion inhibitors for acidic mud; 3. Inspect plungers for wear weekly.

2

Mud Pump Prime Mover

Model: CAT C15; Rating: 2100 RPM

Cast iron (HT300) engine block, forged steel connecting rods, aluminum alloy pistons, turbocharger (40Cr)

1. Turbocharger failure from oil contamination; 2. Injector wear from poor fuel filtration; 3. Overheating from heavy load.

1. Use CAT-specified fuel filters; 2. Inspect turbocharger weekly; 3. Monitor coolant temperature during operation.

3

Pulsation Dampener

Working Pressure: 120 PSI

Carbon steel (Q235B) shell, rubber bladder, stainless steel (304) valves, FKM seals

1. Bladder degradation from pressure cycles; 2. Seal leakage from fluid contamination; 3. Shell corrosion from moisture.

1. Inspect bladder annually; 2. Maintain precharge pressure as specified; 3. Filter mud to prevent valve clogging.

4

Charging Pump

2013 manufacture, Double life; Model: GNSB6X5A-12J; Speed/Power: 37 KW

Alloy steel (16Mn) housing, hardened steel gears, NBR seals, PTFE wear rings

1. Gear wear from fluid contamination; 2. Seal leakage from aging; 3. Bearing damage from insufficient lubrication.

1. Filter fluid before pumping; 2. Replace seals annually; 3. Use OEM-specified lubricants for bearings/gears.

1

Ram Type BOP

Manufacturer: Shaffer; Type: Double Rams / D; Rating: 7-1/16" X 5000 PSI

Forged alloy steel (4340) body, hardened steel rams, FKM seals, stainless steel (316) internals

1. Ram wear from wellbore debris; 2. Seal degradation from harsh well fluids; 3. Hydraulic component damage from contamination.

1. Clean rams after each use; 2. Replace seals annually; 3. Filter hydraulic fluid to API 16A cleanliness standards.

2

Annular BOP

Manufacturer: Rongsheng; Model: FH18-53/RS; Rating: 13-3/8" x 3000 PSI

Alloy steel (4140) body, NBR annular rubber core, FKM seals, PTFE wear rings

1. Rubber core wear from tubular movement; 2. Seal leakage from pressure cycles; 3. Body corrosion from well fluids.

1. Inspect rubber core monthly; 2. Avoid overpressuring beyond 3000 PSI; 3. Flush with clean fluid after use.

3

Accumulator

Manufacturer: Shanghai Shenkai; Model: FKQ 480-5; Working Pressure: 3000 PSI; Reservoir Cap: 650 L; Bottle Count: 12

Carbon steel (Q355B) bottles, rubber bladders, stainless steel (304) valves, FKM seals

1. Bladder degradation from pressure cycles; 2. Valve clogging from fluid contamination; 3. Bottle corrosion from moisture.

1. Inspect bladders annually per API 16D; 2. Maintain precharge pressure; 3. Test bottles for pressure integrity yearly.

4

Choke & Kill Manifold

Manufacturer: SJ Petroleum Machinery Co.; Type: Gate valve / Flange; Working Pressure: 3000 PSI

Alloy steel (A105) valves/flanges, hardened steel gate seats, FKM seals, anti-corrosion coating

1. Valve seat wear from debris; 2. Seal leakage from improper closing; 3. Corrosion from well fluids.

1. Operate valves smoothly to avoid seat damage; 2. Inspect for leaks after pressure testing; 3. Flush manifold regularly.

1

Main Generator Set

Manufacturer: Shanghai Yongsheng Machinery; Model: 806 F Silent

Steel frame, cast iron generator housing, copper windings, aluminum alloy cooling components

1. Copper winding damage from overheating; 2. Cooling system failure from debris; 3. Electrical component corrosion from moisture.

1. Clean cooling system monthly; 2. Monitor voltage/frequency to prevent overheating; 3. Keep generator enclosure dry.

What lubricant is recommended for the Allison 4700 OFS transmission?

Use Allison TES 295-approved automatic transmission fluid (ATF). Replace every 1000 operating hours, and use only Allison-certified filters to prevent valve sticking and gear damage, complying with Allison’s maintenance guidelines.

How often should the annular BOP rubber core (Rongsheng FH18-53/RS) be replaced?

Replace every 12 months or 50 pressure cycles (whichever comes first). For harsh conditions (abrasive well fluids, frequent tubular movement), shorten intervals to 6–8 months, per API 16A maintenance requirements.

How to resolve wire rope fraying on the drawworks/winch?

First, rotate the rope to distribute wear evenly (per API 9B). If fraying exceeds allowable limits, replace the rope with OEM-spec Blue Strand wire rope. Clean and lubricate ropes weekly, and inspect sheaves for smooth operation to reduce friction-induced wear.