Drilling and Completion Tools
Technical Specifications – Drilling and Completion Tools
Tricone Bits (Drilling)
| Parameter | Steel Tooth | TCI Medium Formation | TCI Hard Formation |
|---|---|---|---|
| IADC Code Range | 1-1-1 to 4-3-6 | 5-1-7 to 7-2-7 | 7-3-7 to 8-3-7 |
| Formation hardness | Soft to medium | Medium to hard | Very hard |
| Size range | 3 7/8" – 26" | 3 7/8" – 17 1/2" | 4 3/4" – 12 1/4" |
| Bearing options | Open / Sealed | Sealed / Journal | Journal |
| API connection | REG / IF | REG / IF | REG |
| Sealing | — | Nitrile rubber / HNBR | HNBR / high‑temp |
PDC Bits (Drilling)
| Parameter | Matrix Body | Steel Body |
|---|---|---|
| Formation | Soft to medium‑hard, non‑impact | Soft to medium‑hard, interbedded |
| Cutter type | Premium synthetic PDC | Premium synthetic PDC |
| Cutter diameter | 13mm / 16mm / 19mm | 13mm / 16mm / 19mm |
| Blade count | 3–10 (formation‑dependent) | 3–7 |
| Gauge protection | Diamond / carbide studs | Diamond / carbide studs |
| Nozzles | Threaded or plain carbide | Threaded or plain carbide |
Drilling Jars (SJY Double‑Acting)
| Parameter | 4 3/4" | 5" | 6" | 6 3/4" | 8" |
|---|---|---|---|---|---|
| OD (inches) | 4.75 | 5.0 | 6.0 | 6.75 | 8.0 |
| Up jarring (lbs) | 100,000 | 150,000 | 200,000 | 250,000 | 350,000 |
| Down jarring (lbs) | 50,000 | 75,000 | 100,000 | 125,000 | 175,000 |
| Connection | NC38 | NC46 | NC50 | NC56 | 6 5/8 REG |
| Max temp (°C) | 200 | 200 | 200 | 200 | 200 |
Heavy Weight Drill Pipe (HWDP)
| OD (inch) | Connection | Tube Grade | Tool Joint Grade | Hardbanding |
|---|---|---|---|---|
| 3 1/2 | NC38 | AISI 4145H Mod | AISI 4145H Mod | Standard / Casing‑friendly |
| 4 | NC40 | AISI 4145H Mod | AISI 4145H Mod | Standard / Casing‑friendly |
| 4 1/2 | NC46 | AISI 4145H Mod | AISI 4145H Mod | Standard / Casing‑friendly |
| 5 | NC50 | AISI 4145H Mod | AISI 4145H Mod | Standard / Casing‑friendly |
| 5 1/2 | 5 1/2 REG | AISI 4145H Mod | AISI 4145H Mod | Standard / Casing‑friendly |
| 6 5/8 | 6 5/8 REG | AISI 4145H Mod | AISI 4145H Mod | Standard / Casing‑friendly |
Packers (Completion)
| Parameter | Mechanical Set | Hydraulic Set | Inflatable |
|---|---|---|---|
| Casing size range (inch) | 4 1/2 – 13 3/8 | 4 1/2 – 13 3/8 | 5 1/2 – 13 3/8 |
| Max pressure (psi) | 10,000 | 10,000 | 8,000 |
| Max temp (°F) | 350 | 350 | 300 |
| Setting method | Rotation / tension | Pump pressure | Pump pressure |
| Retrievable? | Yes | Yes | Yes (model‑dependent) |
Bridge Plugs
| Parameter | Permanent | Retrievable |
|---|---|---|
| Casing size range (inch) | 4 1/2 – 13 3/8 | 4 1/2 – 13 3/8 |
| Material | Cast iron / Composite | Cast iron / High‑strength alloy |
| Max pressure (psi) | 10,000 | 10,000 |
| Max temp (°F) | 350 | 350 |
| Removal method | Milled out | Engaged with wireline/CT |
Application Areas
| Application | Primary Drilling Tools Used | Primary Completion Tools Used |
|---|---|---|
| Conventional onshore well | Tricone bits, HWDP, drill collars | Production packer, tubing, safety valve |
| Shale / tight gas horizontal | PDC bits, screw drill, shock absorber, oscillator | Bridge plugs, sliding sleeves, fracturing packers |
| Deep well / HPHT (5,000m+) | TCI bits, drilling jars, HWDP | High‑pressure packers, alloy completion components |
| Directional / extended reach | PDC bit, non‑magnetic collars, shock absorber | Multi‑zone completion, sliding sleeves |
| Mature field workover | Milled tooth bits (top hole) | Retrievable bridge plugs, cement retainers |
| Offshore platform | TCI bits, drilling jars (stuck pipe contingency) | Subsea safety valves, hydraulic packers |
| Squeeze cementing operation | — | Cement retainer |
| Well abandonment | — | Permanent bridge plugs |
Innovation and Quality – How We Build Drilling and Completion Tools
API Certifications Across the Portfolio
Our drilling and completion tools are manufactured under multiple API standards:
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API Spec 7-1 – Rotary drill stem elements (bits, drill collars, HWDP, subs, stabilizers)
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API Spec 7-2 – Threading and gauging of rotary shouldered connections
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API 11D1 – Subsurface completion equipment and downhole tools (held since 2005)
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API Spec 19TT – Downhole well test tools and related equipment
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API Spec 19PT – Downhole perforating tools and related equipment
The API 19TT and 19PT certifications are particularly relevant for completion operations — covering downhole well test tools and perforating equipment, with defined requirements for validation, acceptance testing, and performance ratings.
Third‑Party Inspection Lab – CNACL Accredited
We operate a third‑party inspection and testing laboratory accredited by CNACL (China National Accreditation Committee for Conformity Assessment). The lab performs non‑destructive testing (UT, MT), chemical analysis, and mechanical property verification on critical components.
For international buyers, this provides documented, auditable quality records without sending samples overseas.
Materials – AISI 4145H Modified
Our heavy‑duty downhole tools are manufactured from AISI 4145H Modified (or equivalent) — a chromium‑molybdenum alloy steel formulated specifically for downhole service. Key properties: yield strength 130,000 – 165,000 psi (varies by tool type), tensile strength 140,000+ psi, with full‑length heat treatment and Charpy impact testing available.
Manufacturing Scale – 50,000 m² Assembly Yard
Our production facility includes welding, forging, casting, heat‑treatment, machining, assembly, and commissioning lines, with more than 2,100 precision equipment sets. We operate seven dedicated production lines (drawworks, gearboxes, cylinders, masts, high‑pressure manifolds, plunger pumps, post‑treatment) and three assembly lines for drilling rigs, workover rigs, and cementing/fracturing equipment. Annual capacity: 100 drilling rigs, 100 workover rigs, 120 cementing units, 80 fracturing units, and 150,000 high‑pressure manifolds.
Product Types – Drilling and Completion Tools at a Glance
Drilling Tools
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Tricone bits (steel tooth and TCI, all IADC codes)
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PDC bits ("Xianfeng" series, matrix and steel body)
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Hybrid bits ("Long" series)
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High‑torque equal‑wall‑thickness screw drills
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Drilling jars (SJY double‑acting)
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Two‑way shock absorbers (SJ series)
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Torque impactors and hydraulic oscillators
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Drill collars (standard and non‑magnetic)
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Heavy weight drill pipe (HWDP)
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Stabilizers (integral blade)
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Subs and crossovers (all API connections)
Completion Tools
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Bridge plugs (permanent and retrievable)
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Cement retainers
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Sliding sleeves
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Packers (mechanical set, hydraulic set, inflatable)
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Wellhead equipment (API 6A)
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Subsurface safety valves
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Gas lift equipment
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Downhole pressure/temperature gauges
The "Integrated Solution" Advantage
Because we manufacture both drilling and completion tools, we understand how the two systems interact. The bottomhole assembly you design for drilling affects the casing and completion equipment that follows. Our engineering team can recommend compatible tool combinations that reduce conflicts — such as selecting drill collars and stabilizers that minimize casing wear during drilling, preserving completion equipment life.
Why Choose SJ Petroleum as Your Drilling and Completion Tools Supplier?
1. Sinopec Subsidiary – Field‑Validated Engineering
SJ Petroleum is a wholly‑owned Sinopec subsidiary. Our tools are field‑tested in Sinopec's own drilling and completion operations — thousands of wells annually across China's most challenging basins. Tarim (deep wells to 8,000m), Sichuan (high‑pressure gas), Songliao (complex geology). That field feedback drives our tool designs.
2. Complete Portfolio – Drilling and Completion, One Supplier
Why manage multiple purchase orders, deliveries, and quality audits? We manufacture the full range of drilling tools and completion tools from a single facility under one quality system. Consolidation reduces procurement complexity.
3. API Certified – 7-1, 11D1, 19TT, 19PT
We hold multiple API certifications across both drilling and completion equipment. For completion tools specifically, API 11D1 (subsurface completion equipment) has been held continuously since 2005. API 19TT and 19PT cover well test tools and perforating equipment — adding capacity for complex completion scopes.
4. Independent Third‑Party Lab – In‑House
Our CNACL‑accredited lab provides auditable test reports without outsourcing. For international tenders requiring third‑party verification, we can provide documentation.
5. Export Track Record – 40+ Countries
Our drilling and completion tools have been supplied to oilfields across Central Asia, the Middle East (Saudi Aramco, Kuwait KOC, Oman PDO), Africa, and Southeast Asia. Our international sales team understands LC documentation, shipping logistics, and site acceptance.
6. Factory Direct Pricing
As a manufacturer, we sell direct — no distributor markups. Volume discounts available for quantity contracts and framework agreements.
7. 40+ Years of Manufacturing Experience
SJ Petroleum has manufactured petroleum drilling and production equipment since the end of the 1970s. Our roots trace to 1941. That is not a marketing claim — it is decades of continuous refinement in metallurgy, machining, heat treatment, and downhole equipment design.
Frequently Asked Questions (FAQ) – Drilling and Completion Tools
Q1: What API standards apply to drilling and completion tools?
Multiple standards apply depending on the tool type:
| Standard | Covers |
|---|---|
| API Spec 7-1 | Rotary drill stem elements – bits, drill collars, HWDP, subs, stabilizers |
| API Spec 7-2 | Threading and gauging of rotary shouldered connections |
| API 11D1 | Subsurface completion equipment and downhole tools |
| API 19TT | Downhole well test tools and related equipment |
| API 19PT | Downhole perforating tools and related equipment |
We maintain all applicable certifications. Confirm with us which specific standards your project requires.
Q2: What is the difference between a bridge plug and a cement retainer?
Both are downhole isolation tools, but they serve different purposes.
A bridge plug simply seals the wellbore — creating a pressure barrier. Fluid cannot pass through it in either direction once set.
A cement retainer is designed for squeeze cementing operations. It contains a one‑way valve that allows cement to be pumped downward through the tool into a perforated interval or behind casing, but prevents backflow.
Choose a bridge plug when you only need isolation. Choose a cement retainer when you need to pump cement downward and prevent it from flowing back up.
Q3: How do I select the correct packer for my completion?
Packer selection depends on four factors:
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Well configuration – Single zone, multi‑zone, open hole
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Completion type – Production, injection, stimulation, testing
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Setting method – Wireline, hydraulic, mechanical (tubing rotation/tension)
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Retrievability – Permanent (must be milled) vs. retrievable
The packers segment holds approximately 35% of the global completion equipment market because packers enable nearly every other completion function — zonal isolation, production control, stimulation, and well testing.
Q4: What is the "Xianfeng" PDC bit advantage?
The "Xianfeng" series uses premium synthetic diamond cutters with optimized placement for specific formation types. Blade count is matched to formation hardness — more blades distribute cutter load in hard rock, fewer blades increase ROP in soft formations. In field trials, our "Xianfeng" bits have achieved ROP improvements of 30–50% over standard PDC bits in comparable formations.
Q5: Can you supply non‑magnetic drill collars for directional drilling?
Yes. Our non‑magnetic drill collars use austenitic stainless steel grades with controlled permeability (μ ≤ 1.01). They are fully compatible with all major MWD systems and meet API 7‑1 specifications.
Q6: What is your typical lead time for drilling and completion tools?
| Order Type | Typical Lead Time |
|---|---|
| Standard tricone bits (stock sizes) | 1–2 weeks |
| Standard PDC bits (common sizes) | 2–4 weeks |
| HWDP and drill collars (stock lengths) | 2–4 weeks |
| Packers and bridge plugs (standard ratings) | 3–5 weeks |
| Custom drilling jars or shock absorbers | 6–8 weeks |
| Large quantity orders (50+ tools) | Phased delivery schedule |
Expedited manufacturing is available for emergency fishing tool requirements.
Q7: Do you offer tool repair and refurbishment?
Yes. For drilling tools, we offer cone replacement (tricone bits), cutter replacement (PDC bits), hardbanding re‑application, and thread recutting. For completion tools, we offer seal element replacement, function testing, and re‑certification. Refurbished tools are a cost‑effective option for lower‑criticality operations.
Q8: What is the global market outlook for drilling and completion tools?
The global completion equipment market was valued at approximately 21.43billionin2024andisprojectedtoexpandataCAGRof4.8021.43billionin2024andisprojectedtoexpandataCAGRof4.8011.18 billion in 2025 and is expected to grow to $15.83 billion by 2030 at a CAGR of 7.2% — driven by deepwater exploration, unconventional resource development, and automation in well operations.
Q9: How does SJ Petroleum ensure quality for completion tools specifically?
Completion tools require pressure integrity — seals hold zones, packers isolate intervals, plugs hold pressure. Our quality system for completion tools includes:
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API 11D1 design and manufacturing requirements
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Pressure testing of all sealing elements before shipment
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Material traceability from raw casting to finished tool
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Third‑party witness testing available (we accommodate BV, DNV, SGS at our facility)
Q10: Do you provide onsite training for tool deployment and retrieval?
Yes. We offer:
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Classroom sessions at our factory during tool acceptance
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On‑site training at your wellsite during first deployment
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Written deployment guides with torque values, setting procedures, and retrieval protocols
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Remote video support for troubleshooting during operations
Q11: What is your warranty on drilling and completion tools?
Standard warranty: 12 months from shipment against manufacturing defects (material, heat treatment, machining, assembly). Wear‑related failure (e.g., bit tooth wear, seal degradation from normal use) is formation‑dependent and not covered under warranty.
Q12: Do you offer custom thread connections for drilling tools?
Yes. If you need non‑standard connections to match existing BHAs or proprietary top drive systems, our thread engineers can duplicate or modify to your specifications. Provide connection drawings or a sample tool.
