Oil Drilling High‑Pressure Equipment | SJ HP Mud Pumps & Manifolds

Technical Specifications

The tables below cover standard SJ‑HP series high‑pressure equipment. Custom pressure ratings, materials, and connections are available – specify your well program.

High‑Pressure Mud Pump (Triplex, SJ‑HPP Series)

Parameter	SJ‑HPP‑1000	SJ‑HPP‑1600	SJ‑HPP‑2000	SJ‑HPP‑2200
Input Power (HP)	1,000	1,600	2,000	2,200
Max Working Pressure (psi)	7,500 @ 350 GPM	7,500 @ 500 GPM	7,500 @ 650 GPM	7,500 @ 720 GPM
Liner Size Range (in)	4 – 5.5	4.5 – 6.5	5 – 7	5.5 – 7.5
Stroke Length (in)	10	12	12	14
Max SPM	150	140	140	120
Fluid End Material	4145H (std) / 17‑4PH (opt)	4145H	4145H / 4330V	4330V / Inconel
Valve Type	API 7K taper	Taper / High‑flow	High‑flow	High‑flow
Weight (approx, lbs)	35,000	52,000	65,000	78,000

HP Standpipe Manifold (API 6A, 10,000 psi)

Parameter	SJ‑MAN‑10K‑2	SJ‑MAN‑10K‑3	SJ‑MAN‑15K‑2	SJ‑MAN‑15K‑3
Working Pressure (psi)	10,000	10,000	15,000	15,000
Nominal Bore (in)	2 1/16	3 1/16	2 1/16	3 1/16
Number of Standpipe Outlets	2	3	2	3
Flange Type	API 6A R‑type (RX gasket)	Same	API 6A BX gasket	Same
Relief Valve Setting (psi)	10,300 ± 2%	10,300	15,500	15,500
Material	4130 forged	4130	4145H	4145H
NACE MR0175 Option	Yes	Yes	Yes	Yes

HP Swivel (5,000–15,000 psi)

Parameter	SJ‑SWL‑5K	SJ‑SWL‑7.5K	SJ‑SWL‑10K	SJ‑SWL‑15K
Working Pressure (psi)	5,000	7,500	10,000	15,000
Through Bore (in)	3.5	4.0	4.5	4.5
Rated Rotating Speed (RPM)	200	180	150	120
Washpipe Material	Hardened 4140	Hardened + chrome	Tungsten carbide	Tungsten carbide
Seal Type	Chevron V‑pack	V‑pack + PTFE backup	Metal‑to‑metal	Metal‑to‑metal
Connection (top/bottom)	4″ IF	4″ IF	5‑1/2″ FH	6‑5/8″ Reg
Weight (lbs)	1,800	2,500	3,600	4,800

HP Rotary Hose (API 7K, 4″ ID)

Parameter	SJ‑HOSE‑5K	SJ‑HOSE‑7.5K	SJ‑HOSE‑10K	SJ‑HOSE‑15K
Working Pressure (psi)	5,000	7,500	10,000	15,000
Minimum Burst (psi)	12,500	18,750	25,000	37,500
Inside Diameter (in)	3	3.5	4	4
Number of Wire Spirals	4	6	6	8
Temperature Range	-20°F to +200°F	Same	Same	-40°F to +250°F
End Fittings	Male union (Hammer)	Hammer	Hammer	Hammer + swivel
Length (ft, standard)	40–75	40–75	40–75	40–60

Applications

Oil drilling high‑pressure operating equipment from SJ is used wherever downhole pressures exceed standard 5,000 psi ratings:

1. Deep & Ultra‑Deep Drilling (20,000+ ft)

When total vertical depth exceeds 20,000 feet, the mud column alone approaches 10,000 psi hydrostatic. Add pumping friction, and you need 7,500 psi equipment minimum. Our HPP‑2000 pump and HP manifold are standard on deep well rigs in the Permian, Western Sichuan, and offshore Brazil.

2. HPHT (High Pressure, High Temperature) Wells

Reservoirs with pressures above 15,000 psi and temperatures above 350°F require special 15k–20k psi equipment with sour‑service metals. Our HP swivels and choke/kill lines are used in the Gulf of Mexico, South China Sea, and Middle East HPHT fields.

3. Offshore Jack‑Up & Semi‑Submersible Rigs

Offshore rigs often drill high‑pressure sub‑salt reservoirs. Our HP mud pumps and manifolds are compact enough for cramped deck spaces, with marine coatings and ABS certification. We supply complete HP fluid systems for major drilling contractors.

4. Well Control & Kick Circulation

When a kick occurs, you need to circulate out influxes at high pressure through the choke manifold. Our HP choke and kill lines are rated for simultaneous high pressure and abrasive cutting flow. Manual or remote hydraulic chokes allow precise backpressure control.

5. High‑Pressure Cementing

Cementing deep production casing or squeezing operations requires cement pumps capable of 10,000+ psi. Our HP triplex pumps (used as cementing units) feature separate fluid ends for abrasive cement slurries. Ask about our cementing package with batch mixers.

6. Hydraulic Fracturing Support (High‑Pressure Manifolds)

Although fracking uses dedicated frac pumps, drilling rigs often need HP manifolds for wellhead isolation or to pump treating fluids during completion. Our HP 15k manifolds are compatible with frac iron (hammer unions, 2″ 1502).

7. Workover & Snubbing Under Pressure

Live‑well workover requires HP equipment to handle wellhead pressure while running tubing. Our compact HP swivels and rotary hoses are used on snubbing units and coil tubing BOP stacks.

Product Types & Models

We offer a complete range of oil drilling high‑pressure operating equipment, both as individual components and integrated systems:

Product Category	Series / Models	Pressure Rating	Key Features
HP Mud Pumps	SJ‑HPP‑1000 to 2200	7,500 psi @ rated flow	Triplex, forged fluid end, 1,000–2,200 HP
HP Standpipe Manifolds	SJ‑MAN‑5K/10K/15K	5,000–15,000 psi	API 6A, 2–4 outlets, relief valves
HP Choke & Kill Manifolds	SJ‑CKM‑10K/15K/20K	10,000–20,000 psi	Tungsten carbide trim, manual or remote
HP Swivels	SJ‑SWL‑5K to 15K	5,000–15,000 psi	Replaceable washpipe, metal seals
HP Rotary Hoses	SJ‑HOSE‑5K to 15K	5,000–15,000 psi	4‑8 spiral wire, hammer unions
HP Mud Valves	SJ‑VALVE‑gate/check	Up to 15,000 psi	API 6A, gate or one‑way check
HP Fluid End Parts	Valves, seats, pistons, liners	For SJ & other pumps	Tungsten carbide, NACE options
Complete HP Circulating System	Engineered package	7,500–15,000 psi	Pump + manifold + hoses + swivel

OEM / Custom Services:

Build to your specification (pressure, bore size, connection type)
Private labeling and your part numbers
Third‑party witness testing (SGS, BV, etc.)
Upgrade existing rig HP systems to higher pressure rating

Why Choose SJ Petroleum Machinery?

1. Sinopec‑Owned – Factory Direct, No Middleman

SJ is a wholly owned manufacturing subsidiary of Sinopec – not a trading company. You pay factory‑direct prices and get the engineering resources of a global energy major. Our HP equipment is used on Sinopec’s own rigs, so it’s field‑proven before it ever reaches your location.

2. 80+ Years of High‑Pressure Engineering

We’ve been building mud pumps and HP components since 1941. That’s over eight decades of iterative design based on real drill site failures, wear patterns, and pressure spikes. Many of our competitors have copied our fluid end geometry – but they can’t copy our metallurgy and heat treat process.

3. Full API Compliance & Traceability

Every HP component is:

Serialized with heat number traceable to raw material mill certificate
Hardness tested (≤ 22 HRC for sour service)
Magnetic particle inspected (MPI) or ultrasonic (UT)
Hydrostatically pressure tested to 1.5× working pressure
Supplied with API monogram and Certificate of Compliance

No shortcuts. Your HSE and engineering teams will have complete documentation.

4. In‑House Forging & Machining

We don’t buy castings or outsourcing forgings. Our own forging press and CNC machining centers produce fluid ends, swivel bodies, and manifold tees under our direct quality control. That means shorter lead times and full control over metallurgy.

5. Shorter Lead Times Than Western Brands

Typical lead time for an SJ‑HPP mud pump: 12–14 weeks. HP standpipe manifold: 6–8 weeks. HP swivel: 8–10 weeks. Western brands often quote 20–30 weeks. Expedited delivery is available for emergency replacements.

6. Global Spare Parts Network

We stock high‑wearing HP parts (valves, seats, liners, packing, seals) in regional warehouses – Houston, Dubai, Singapore, and Jingzhou. Spare parts ship within 48 hours. For complete pumps or manifolds, we maintain a rental fleet for short‑term needs.

7. Custom Engineering for Unusual Pressures

Need a 20,000 psi swivel with a non‑standard washpipe? Or a 5,000 psi manifold built from super‑duplex for seawater service? Send us your requirement. Our engineers will design, stress‑analyze, and prototype – usually within 4 weeks.

8. Field Service & Commissioning

Our technicians can be on site for:

Installation and alignment of HP pumps
Pressure testing of manifolds and lines
Training your crews on maintenance and safe operation
Failure analysis and repair

We support our equipment for its entire life.

Frequently Asked Questions (FAQ)

Q1: What working pressure should I choose – 7,500 psi or 15,000 psi?

Simple rule: If your expected maximum surface pressure (pump pressure + hydrostatic + friction) will never exceed 7,500 psi, the 7,500 psi class is adequate and less expensive. If you drill HPHT wells where reservoir pressure can kick to 10,000–15,000 psi, or if you ever plan to use high‑density mud (20+ ppg), go with 15,000 psi. Many operators choose 10,000 psi as a middle ground. We recommend running a well control simulation before deciding.

Q2: How long do HP fluid end components (valves and seats) last?

In clean water‑based mud at moderate pressure, 500–1,000 hours. In abrasive oil‑based mud with sand or barite, 150–300 hours. The biggest factors are solids content and pump speed. We recommend keeping spare valve/seat sets on the rig – at $800–1,500 per set, it’s cheap compared to non‑productive time.

Q3: Do your HP components meet NACE MR0175 for sour service?

Yes. When specified, we use materials that meet NACE MR0175 / ISO 15156 – hardness ≤ 22 HRC, no sulfide stress cracking. We supply material test reports and hardness logs for every sour‑service component. Note that not all standard parts are NACE; you must request it at time of order.

Q4: Can I retrofit your HP manifold onto an existing rig with older connections?

Yes. We offer adapter flanges and unions to interface with virtually any API connection: R‑type, BX, grey lock, hammer unions (1502, 1002, 602). Provide the connection details of your existing standpipe and BOP stack, and we’ll engineer the adapters.

Q5: What’s your warranty on HP equipment?

Standard: 18 months from shipment or 12 months from commissioning (whichever comes first). For fluid end consumables (valves, seats, liners, packing), we warranty against manufacturing defects only – not normal wear. Extended warranties up to 36 months available for complete pumps.

Q6: How do I know if my rotary hose needs replacement?

API 7K recommends: replace every 3 years or when any of the following appears – visible wire braid, kinking, cover cracking, end fitting movement, or if the hose has been subjected to a pressure spike exceeding working pressure. We can supply inspection checklists and test fittings.

Q7: Do you offer high‑pressure equipment for cementing operations separately?

Absolutely. Our SJ‑HPP pumps configured with separate cementing fluid ends (larger valves, abrasive‑resistant trim) and batch mixers are used by many well service companies. Ask for our Cementing Package datasheet.

Q8: What’s your lead time for a full HP circulating system (pump + manifold + swivel + hoses)?

A complete package for a new rig typically takes 16–20 weeks from order (including engineering integration). Rental systems can be delivered in 2–4 weeks from existing inventory.

Products

Product Categories

Oil drilling high-pressure operating equipment

High‑Pressure Mud Pumps – Up to 7,500 psi & 2,200 HP：

HP Standpipe & Manifold Systems – 5,000 to 20,000 psi：