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Integral Blade Stabilizer (IBS)
Integral Blade Stabilizer (IBS) is a one-piece downhole tool used to centralize the BHA, improve hole quality, and reduce vibration. Manufactured per drawing/spec with optional hardfacing (HF1000–HF6000) to match formation and operating conditions.
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The Integral Blade Stabilizer (IBS) is a one-piece downhole stabilization tool used to centralize the BHA, improve hole quality, and reduce vibration and wellbore tortuosity. Unionlever OFS supplies IBS stabilizers manufactured per customer drawing/specification or approved sample, with controlled machining and hardfacing processes to support reliable drilling performance in vertical, directional, and horizontal wells.
- Straight Integral Blade Stabilizer (standard blade profile)
- Spiral Integral Blade Stabilizer (enhanced cuttings agitation and reduced stick-slip)
- Non-Magnetic Integral Blade Stabilizer (NM option when required)
- Near-bit or string stabilizer designs (position-specific dimensions and connections)
- Hardfacing / hardbanding options and blade profiles per formation and operating preference
- One-piece integral construction for robust strength and stable gauge control
- Controlled blade OD and concentricity to improve hole conditioning and reduce whirl
- Hardfacing engineered per application, with grade reference options (e.g., HF1000–HF6000 or equivalent) selected by formation abrasiveness and expected run hours
- Optional non-magnetic material when required for MWD/LWD operations
- Connection flexibility (NC / REG / IF / FH and other thread types per specification)
Hardfacing is a key factor for stabilizer wear life and gauge retention. For Integral Blade Stabilizers, we provide project-based hardfacing selection to match formation abrasiveness, expected run hours, and operating preference (abrasion vs. impact). Where applicable, welded hardfacing can be reconditioned and re-applied during maintenance to extend service life.
| Grade | Typical Wear Focus | Common Selection Guidance (Project-Based) |
|---|---|---|
| HF1000 | General wear resistance (mild to medium abrasion) | Commonly considered for mild-to-medium abrasive formations where balanced toughness and wear resistance are preferred. |
| HF2000 | Enhanced abrasion resistance (sliding/long contact) | Often selected for higher-deviation drilling and abrasive intervals where longer gauge retention is required. |
| HF3000 | Severe abrasion environments (overlay-focused) | Considered for abrasive formations when a higher wear-resistant overlay performance is needed; final specification follows project requirements. |
| HF4000 | High abrasion with localized contact / edge wear | Commonly used when blade leading-edge wear is critical in highly abrasive formations; configuration and coverage are confirmed by operating details. |
| HF5000 | High-temperature wear conditions (as required) | Considered for elevated temperature applications where hardfacing integrity and wear performance must be maintained. |
| HF6000 | Extreme abrasion / extended run requirements | Used for extremely abrasive formations and longer run targets; final selection is confirmed by formation description, run plan, and operator preference. |
Note: “HF1000–HF6000” is used as a common industry reference. Final hardfacing designation, coverage, and process may vary by manufacturer and project, and can be confirmed based on your formation/service description or offset well experience.
- BHA stabilization for directional, horizontal, and vertical drilling
- Hole conditioning and gauge maintenance in medium to hard formations
- Vibration mitigation to protect drill string, MWD/LWD, and bit performance
- Near-bit stabilization to support trajectory control and improved ROP consistency
IBS stabilizers are typically specified by blade OD (gauge), body OD, blade profile, hardfacing grade, and top/bottom connections. Final dimensions follow the customer drawing/specification and BHA design requirements.
| Item | Typical Option / Notes |
|---|---|
| Type | Straight / Spiral; Near-bit / String position |
| Material | Alloy steel; optional Non-Mag material upon request |
| Blade OD (Gauge) | Per hole size / required gauge; tolerance per drawing/spec |
| Hardfacing / Hardbanding | Selected by formation and expected wear mode; grade reference series available (e.g., HF1000–HF6000 or equivalent) |
| Connections | Top & Bottom connections per spec (NC / REG / IF / FH etc.) |
| Length / Profile | Overall length and blade geometry per drawing/spec and BHA design |
- Incoming material verification (MTC review when provided / requested)
- In-process dimensional checks (critical OD, connection gauges, key datums)
- Hardfacing process record and visual inspection per requirement
- Final inspection before packing; photos available upon request
- Third-party inspection support (SGS / BV / TPI) available when required
- Replacement or repeat-order support by drawing number / spec revision control
- Packaging and labeling aligned with your maintenance workflow
- Record-based repeat supply to reduce reconfirmation time for future orders
To provide an accurate quotation and ensure fit-for-purpose performance, please share the following information. If some items are not available, you can send drawings/samples and we will help complete the missing parameters.
- Hole size / required blade OD (gauge): target gauge and tolerance (if specified)
- Type: straight or spiral; near-bit or string position
- Body OD / fishing neck / key lengths: per drawing/spec
- Connections: top & bottom thread type, size, and connection standard
- Hardfacing requirement: preferred grade/series (e.g., HF1000–HF6000 or equivalent) or formation/service description
- Material requirement: alloy steel or non-magnetic; any sour/temperature notes
- Quantity & delivery window: target lead time and shipping term
Unionlever OFS supports IBS projects with an engineering-led workflow: we align critical dimensions, connections, and hardfacing requirements up front to reduce back-and-forth and avoid field fitment risk. For repeat orders, we keep drawing/spec revision records and inspection checkpoints to improve consistency, shorten reconfirmation time, and make trial orders easier to scale into stable long-term supply.
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Building upon more than a decade of field experience, Unionlever OFS offers a comprehensive portfolio covering downhole drilling tools, fishing tools, handling tools, well control equipment, cementing tools, and solid-control systems.
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Unionlever Oilfield Equipment Co., Limited
A Member of
Unionlever International Group Limited
(Established Since 2010)
"To be a globally trusted leader in oilfield equipment and integrated supply solutions."
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