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Product Overview
Oilfield drilling equipment thread drift gauges are high-precision
measuring tools specially used to detect the thread size, shape and
connection accuracy of various oil drilling tools (such as drill
pipes, casings, tubing, joints, etc.). Its design strictly follows
international standards (such as API Spec 7-1, ISO, etc.), which
can ensure the interchangeability, sealing and safety of drilling
equipment threads. It is a key tool for oilfield equipment
production, maintenance and quality control.
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Product Classification
Oilfield drilling equipment thread drift gauges can be divided into
many types according to shape and purpose, including ordinary
coarse pitch, fine pitch and pipe thread drift gauges, as well as
ring gauges and plug gauges. Ring gauges are mainly used to detect
external thread sizes, while plug gauges are used to detect
internal thread sizes.
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Instructions for use
- Select the appropriate specification: Select the appropriate thread gauge according to the thread
specification to be inspected.
- Clean thread: Before inspection, ensure that the surface of the thread to be
inspected is clean and free of oil and impurities.
- Measurement: Gently screw the thread gauge into the thread to be inspected
until it can no longer be screwed in. Observe the fit between the
thread gauge and the thread to determine whether the thread size is
qualified.
- Maintenance: The thread gauge should be cleaned in time after use and properly
stored to avoid damage and deformation.
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Precautions
- During use, excessive force should be avoided to cause damage or
deformation of the thread gauge.
- The thread gauge should be calibrated and maintained regularly to
ensure its measurement accuracy.
- When storing, it should be placed in a dry and ventilated place to
avoid moisture and corrosion.
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Core functions
1. Thread accuracy detection
o Detect key parameters such as thread pitch, taper, tooth angle,
and median diameter to ensure compliance with API standards.
2. Quality control assurance
o Used to quickly determine the quality of thread processing on the
production line to avoid underground accidents caused by
unqualified threads.
3. Service life assessment
o Regularly test the wear degree of the drill thread to assess the
remaining life of the equipment and reduce operational risks.
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Product features
- High-precision manufacturing: CNC grinding and ultra-precision machining technology are used,
with a tolerance of ±0.003mm, meeting the highest precision
requirements of API.
- Strong durability: The material is made of high-strength alloy steel (such as GCr15,
H13), and the surface is hard chrome plated or nitrided for wear
and corrosion resistance.
- Standardized design: Provide a variety of specifications and models, covering API
standard thread types (such as NC, FH, IF, REG, etc.), ensuring
international versatility and reliability, and supporting
customized non-standard specifications.
- Convenient operation: Equipped with a calibration certificate, providing clear go (GO)
and no go (NO GO) markings, quickly determine the thread
qualification.
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Product specifications
Covering a variety of specifications to adapt to different sizes
and types of oilfield drilling equipment threads. Common
specifications include API (American Petroleum Institute) standard
series, such as 1.050” - 20.000” and other thread drift gauges
corresponding to different pipe diameters, which can meet various
conventional and special size requirements of oilfield drilling
equipment thread detection.
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Technical parameters
| Casing Drift (in) | 4 1/2 | 5 | 5 1/2 | 5 3/4 | 6 5/8 | 7 |
| O.D. (mm) | 92-95 | 102-107 | 114-118 | 119-128 | 136-148 | 146-158 |
| Length (mm) | 500 | 500 | 500 | 500 | 500 | 500 |
| Up Connection | NC 26 2 3/8 TBG | NC 26 2 7/8 TBG | NC 31 2 7/8 TBG | NC 31 2 7/8 TBG | NC 31 2 7/8 TBG | NC 38 3 1/2 TBG |
| Down Connection | NC 26 2 3/8 TBG | NC 26 2 7/8 TBG | NC 31 2 7/8 TBG | NC 31 2 7/8 TBG | NC 31 2 7/8 TBG | NC 38 3 1/2 TBG |
| Tubing Size (in) | 1 1/2 | 2 | 2 1/2 | 3 | 3 1/2 | 4 |
| O.D. (mm) | 38 | 48 | 59 | 73 | 73 | 95 |
| Length (mm) | 500 | 500 | 500 | 500 | 600 | 600 |
| Pipe Type | Specification | Drift Size |
| Drift Size | Min. Dia. (mm) |
Casing | ≤ 8-5/8 9-1/8 ~ 13-3/8 ≥16 | 150 , 305 , 305 | d-3.18 d-3.97 d-4.76 |
| Tubing | ≤ 2-7/8 ≥3-1/2 | 1067 , 1067 | d-2.38 d-3.18 |
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Scope of application
• Inspection objects:
Drill pipe joints, casing nipples, tubing threads, blowout
preventer connectors, etc.
• Application scenarios
- Quality inspection of production lines in drilling tool
manufacturers
- Equipment maintenance and inspection at oilfield sites
- Standardized acceptance by third-party testing agencies
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Use and maintenance
- Operating specifications: Clean the gauge and the thread to be
tested before use to prevent impurities from affecting the
accuracy; the through end should be screwed in smoothly, and the
stop end should not enter.
- Maintenance recommendations: Wipe with non-woven cloth regularly
and apply anti-rust oil, store in a constant temperature and dry
environment, and it is recommended to return to the factory for
calibration once a year.
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Quality certification
- Comply with API Spec 7-1 and ISO 10424-2 standards
- Strict inspection process: From raw materials entering the factory
to finished products leaving the factory, every link undergoes
strict quality inspection.
- Certified by the National Institute of Metrology (CNAS)
- Provide third-party inspection reports and calibration certificates
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Purchase recommendations
Select the corresponding gauge according to the drilling equipment
model, thread specifications and inspection requirements, and
support customized non-standard sizes and special coating
requirements.
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After-sales service
- Provide technical consultation
- 3-month warranty, lifetime maintenance
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Contact us
If you need product selection support or customized services,
please contact our engineering team to get precise solutions.
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Product display:
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Product package:
Product packaging: iron box or iron frame, wooden pallet, wooden
box, bulk or customized according to customer requirements.
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Product detection:
100% inspection will be carried out before shipment, and video
image data and inspection reports will be provided.
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Accepted delivery terms:
FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express
Delivery, DAF, DES.
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About HuiChi (HC) petro:
Shandong Huichi Industry & Trade is a professional supplier of
drilling equipment for the oil and gas industry. We are committed
to providing the best products and services to customers around the
world.
We HuiChi (HC) Petro always regard our customers as our partners
and aim to achieve long-term cooperation value. Our Huichi products
cover different fields such as oil fields, water wells, HDD, etc.
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Why choose HuiChi (HC) petro?
One-stop drilling equipment supply;
Employee engineers have more than 10 years of experience in
supplying drilling equipment;
More than 10 people engaged in export business;
More than 40 partner countries and regions;
More than 200 customers having close cooperative relationships;
More than 250+ partner factories as suppliers.
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Focus on well drilling equipment , we have been working hard and
hope to become your most professional oil & gas equipment supplier
and the best partner!
Sales Manager: Cherry Chi
Email: cherry@huichipetro.com
Mob/WhatsApp/We chat: +86 15553820372
