Technical Specifications – SHXJ180 Offshore Workover Rig
|
Parameter
|
Metric
|
Imperial
|
|
Model
|
SHXJ180
|
SHXJ180
|
|
Rig Type
|
Hydraulic/AC VFD workover rig (fixed platform)
|
–
|
|
Max. Hook Load
|
1,800 kN
|
405,000 lb
|
|
Drawworks Power
|
450 kW (AC VFD)
|
600 hp
|
|
Workover Depth (2-7/8" tubing)
|
4,500 m
|
14,800 ft
|
|
Workover Depth (3-1/2" tubing)
|
3,800 m
|
12,500 ft
|
|
Light Drilling Depth (4-1/2" drill pipe)
|
2,500 m
|
8,200 ft
|
|
Mast Type
|
Telescopic single-cylinder bootstrap mast
|
–
|
|
Mast Clear Height
|
33 m
|
108 ft
|
|
Substructure Height
|
5 m (adjustable)
|
16.4 ft
|
|
Max Single Module Weight
|
≤ 18 tons
|
≤ 39,600 lb
|
|
Total Operating Deck Load
|
~115 tons
|
~253,500 lb
|
|
Top Drive Option
|
1,800 kN AC VFD top drive (available)
|
–
|
|
Power Supply
|
Platform AC 600V/690V / 50Hz or 60Hz
|
–
|
|
Certifications
|
API 4F, 7K, 8C; ISO 9001; ISO 14001; OHSAS 18001
|
–
|
Applications – Where the SHXJ180 Shines
|
Application
|
Typical Operation
|
|
Workover (routine)
|
Pulling & running tubing, rod change, pump replacement, downhole gauge repair
|
|
Sidetracking
|
Milling window, kickoff, drilling short radius horizontal sections (≤300m)
|
|
Well deepening
|
Drilling additional 200-400m below original TD
|
|
Cement squeeze & plug
|
Squeeze cementing, plug setting, abandonment preparation
|
|
Fishing operations
|
Retrieving broken tubing, packers, or other fish
|
|
Well cleanup
|
Circulation, sand washing, acid stimulation prep
|
Best fit platforms: Fixed jacket platforms in water depths 5-40m, originally designed for light intervention or medium workover. The SHXJ180 is particularly popular on mature fields where wells need frequent maintenance (every 12-18 months).
Product Range: Offshore Workover Rigs (SHXJ Series)
SJ Petroleum Machinery offers a complete line of fixed platform workover rigs, covering light to heavy intervention:
|
Model
|
Hook Load
|
Typical Use
|
|
SHXJ90
|
900 kN (202,000 lb)
|
Light workover, shallow wells (≤2,500m)
|
|
SHXJ112
|
1,120 kN (252,000 lb)
|
Standard workover (≤3,500m)
|
|
SHXJ135
|
1,350 kN (303,000 lb)
|
Medium workover + light drilling
|
|
SHXJ158
|
1,580 kN (355,000 lb)
|
Heavy workover
|
|
SHXJ180
|
1,800 kN (405,000 lb)
|
Heavy workover + light drilling (best seller)
|
|
SHXJ225
|
2,250 kN (506,000 lb)
|
Heavy drilling hybrid (crosses into light drilling rig category)
|
The SHXJ180 hits the sweet spot for most mature platform needs – enough grunt for deep workover, but still lightweight enough for easy handling.
OEM Customized Solutions – Built for Your Exact Platform
We don't do "one size fits all.” Every SHXJ180 starts as a base design, then we tailor it to your platform’s constraints.
What we can customize:
|
Customization Area
|
Options
|
|
Module weight & size
|
Split into 10-12 smaller lifts (down to 8 tons per module) for very light cranes
|
|
Drive type
|
AC VFD (standard), hydraulic (cost-saving), or diesel-mechanical
|
|
Top drive vs. rotary table
|
AC VFD top drive (recommended) or conventional rotary table + kelly
|
|
BOP handling
|
Integrated BOP trolley and lifting frame
|
|
Control cabin
|
Single driller seat with HMI, or dual-station (driller + assistant)
|
|
Well control package
|
Choke manifold, accumulator unit mounted on substructure
|
|
Coiled tubing prep
|
Guide chute and injector head interface for future coiled tubing addition
|
|
Corrosion upgrade
|
316 stainless steel hydraulic lines, full thermal spray aluminum coating for tropical/sulfate-reducing bacteria environments
|
How we work with you:
-
You send us: platform deck plan, crane capacity curve, well program (depth, tubing size, expected pulling loads)
-
Our engineering team (25+ offshore specialists) creates a layout drawing and weight distribution report within 2 weeks
-
We jointly review and adjust module splits to fit your crane limits
-
Full 3D model shared for your platform integration study
-
Then we build, test, and ship
Why Choose SJ Petroleum Machinery?
|
Factor
|
What You Get
|
|
Sinopec pedigree
|
Backed by a Fortune 500 energy group – we’re not a fly-by-night supplier.
|
|
Workover specialization
|
We’ve delivered over 100 workover rigs since 1990. The SHXJ180 design has been refined through three major upgrades based on field feedback.
|
|
Compact & lightweight
|
Our rigs consistently weigh 25-30% less than competitors with same hook load – lower deck reinforcement costs.
|
|
API & third-party friendly
|
All pressure-containing components API-monogrammed. Your inspector will find full traceability.
|
|
In-house full-load test yard
|
Every SHXJ180 is assembled and tested to 110% of rated load in our 50,000m² yard. Client witness testing welcome.
|
|
Global parts & service
|
Spare parts hubs in Houston (USA) and Dubai (UAE) for fast delivery. 24/7 remote technical support via satellite link.
|
|
Training included
|
We train your crew at our Jingzhou center or on your platform – with simulator-based driller training optional.
|
Real operator feedback: "We replaced a hydraulic workover unit with the SHXJ180. Our average job time dropped from 5.2 days to 3.8 days – mainly because the AC VFD top drive handles connections faster and snubbing is smoother.” – Senior production engineer, Bohai Bay field.
Frequently Asked Questions (FAQ)
Q1: What does "SHXJ180” mean?
A: "SH” = offshore (Hǎi shàng), "XJ” = workover rig (Xiū jǐng jī), "180” = nominal hook load in metric tons (180 tons = 1,800 kN). Simple.
Q2: Can the SHXJ180 be used on a platform with only a 15-ton crane?
A: Possibly – but we’d need to split modules into smaller lifts (down to 8-10 tons each). This increases the number of lifts but is doable. Tell us your crane capacity and we’ll propose a module breakdown.
Q3: How does it compare to a hydraulic workover unit (HWU)?
A: Hydraulic units are lighter but slower and less powerful for rotating operations. The SHXJ180 gives you full rotary table/top drive capability – much faster for tubing make-up/break-out and for drilling light sidetracks. If you only need snubbing and light tubing pulling, an HWU might suffice. But for real workover efficiency, the SHXJ180 wins.
Q4: What is the typical delivery time?
A: Standard SHXJ180 (no major customization) ships in 7-9 months from order. Fully custom (new module splits, special coating) may take 10-11 months. Expedited options available – ask about current shop loading.
Q5: Do you provide installation and commissioning offshore?
A: Yes. Our field service team (ex-workover supervisors) will be on your platform for rig-up supervision, commissioning, and first job assistance. Typically 2-3 weeks on site.
Q6: What warranty do you offer?
A: 18 months from shipment or 12 months from commissioning (whichever is earlier). Extended warranty plans (up to 5 years) available for major components like drawworks and top drive.
Q7: Can the rig be converted from AC VFD to hydraulic later?
A: Not easily – the base structure differs. But we can design a hybrid-ready version at order time (mounting points for hydraulic power unit, but still shipped with AC drive). Better to decide upfront.
Q8: What spares should we stock?
A: We provide a recommended spares list based on your expected workover frequency. Typical first-year package costs about 3-5% of rig price. Common wear items: brake pads, slip dies, hydraulic hoses, VFD cooling fans.
Q9: Do you offer financing or leasing?
A: Not directly, but we can introduce you to Sinopec-affiliated leasing partners. Contact our sales team for details.
Q10: How do I get a firm quote?
A: Send an inquiry with your platform name, well count, typical workover depth, and crane capacity. We’ll reply with a technical proposal and budget price within 5 working days.
Tag:
