14-631-168 “CPS” Conductor Pipe Slips, 14-630-216 “CMS-3” Casing Slips

Introduction: Cut Hidden Costs and Downtime with Reliable Oil Drilling Accessories

For drilling contractors, rig maintenance teams, and well service technicians working in onshore, offshore, and shale gas oilfields, hidden costs from unplanned downtime and component failure can eat into 25–35% of a well’s total lifecycle cost—according to industry data on well lifecycle economics. A single faulty link block nut, worn insert, or bent hinge pin can trigger non-production time (NPT), which costs an average of $10,500 per hour for onshore rigs and $42,000 per hour for offshore platforms. This risk is even more critical for deepwater wells, where NPT from equipment failure can add over $800,000 to a single well’s cost. Our comprehensive range of oil drilling accessories, including the 14-631-168 “CPS” Conductor Pipe Slips, 14-630-216 “CMS-3” Taper Casing Slips, E55513 5 1/2” X 5 1/2” HYC Slip Assy., and over 50 other critical components, is engineered to eliminate these pain points. All products fully comply with API Spec 7K:2015, NACE MR0175/ISO 15156, and ISO 9001:2015 standards, with each component undergoing 14 rigorous quality checks—including material composition testing, load-bearing trials, and corrosion resistance assessments—before leaving the factory. Our core purpose is to provide perfectly compatible, durable accessories that fit specific equipment models (such as Type B & C tongs, DCSL 2555 slip systems, and AOT “DCS” drill collar slips), addressing the specific needs of drillers who require reliable parts to reduce NPT, cut hidden costs, and maintain operational continuity. Whether you need replacement nuts, pins, inserts, or complete slip assemblies, our products are designed to match original equipment specifications, ensuring seamless integration and long-lasting performance in even the most challenging drilling environments.

Product Overview & Core Functions

Key Product Models & Compatibility

Each accessory in our lineup is precision-engineered to fit specific drilling equipment, solving common operational pain points that drive up hidden costs and disrupt rig efficiency:

• 14-631-168 “CPS” Conductor Pipe Slips: These conductor pipe slips are designed for initial well construction, compatible with conductor pipes of various sizes and supporting loads up to 380 tons. They eliminate the risk of pipe slippage during conductor running— a common cause of NPT that can add $80,000 to a well’s cost per incident. They work seamlessly with E30221 5” Insert Retainers and E24507 3 1/2” Insert Spacers for enhanced stability.

• 14-630-216 “CMS-3” Taper Casing Slips: A 26-inch model with a 3”/ft taper, these casing slips are ideal for mid-size wells, supporting loads up to 450 tons. They feature a multi-segment design that distributes pressure evenly, preventing casing deformation—a costly issue that can require well repair costing $150,000 or more. They pair perfectly with E32919 Hinge Pin (Frame 32384) and E32892 Hinge Pin Retainer.

• E55513 5 1/2” X 5 1/2” HYC Slip Assy.: This complete slip assembly is compatible with 5 1/2” drill pipe and casing, supporting loads up to 140 tons. It replaces worn slip assemblies that cause pipe rotation during drilling, reducing the risk of wellbore damage and tool loss. It works with 707-000-0500 Inserts and 7624-B-21 Insert Springs for extended service life.

• Other Critical Components: T13264-1-SH Set Back Hanger Assy. (for Type C Tongs), T26783-SH Set Back Hanger (for Type B Tongs), E8150 Link Block Nut 2, DCS L 2630 Button Inserts, and 7704-A-35 “UC-3” Casing Briefs (Less Liners) complete the system, ensuring every part works in harmony to avoid single-point failures.

Structural Features & Advantageous Design

Every accessory is built with field usability and durability in mind, addressing the most frustrating pain points drillers face daily—especially those that drive up hidden NPT costs:

• High-Strength AISI 4140 Alloy Steel Construction: All slip segments, hinge pins, and link blocks are made of AISI 4140 heat-treated alloy steel (equivalent to 42CrMo in Chinese standards), with a tensile strength of 1050 MPa and a hardness rating of 30-34 HRC. This material withstands 175,000+ cycles of use without deformation, compared to the industry average of 95,000 cycles—meaning fewer replacements and less NPT.

• Precision Dimensional Accuracy: Each component is machined to a tolerance of ±0.003 inches, ensuring a perfect fit with original equipment. The 14-630-216 “CMS-3” Casing Slips, for example, have a surface finish of Ra 0.6 μm, reducing friction between the slip and casing by 40% and minimizing the risk of casing damage.

• Corrosion & Wear Resistance: All exposed components feature a zinc-nickel coating (14-17 μm thick) and are treated with high-temperature, anti-corrosion grease, complying with NACE MR0175/ISO 15156 standards for use in sour gas wells (H₂S content up to 20,000 ppm) and offshore environments. This coating prevents corrosion caused by salt spray and high-humidity conditions, extending component life by 60,000 cycles.

• Easy Installation & Maintenance: Components like the 7638-E-2 Handle Pin (w/ Cotter) and E939672-19 Cotter Pin are designed for quick, tool-free replacement, saving 20 minutes per maintenance task. The E940308-1 Grease Fitting is strategically placed for easy lubrication, even in tight spaces, reducing maintenance time and NPT.

Applicable Working Conditions

Our accessories are engineered to perform reliably in the toughest oil and gas drilling scenarios, where hidden costs from component failure are most prevalent:

• Onshore oilfields (desert, grassland, and mountainous regions) with extreme temperature fluctuations (-48°C to 95°C), where components must withstand thermal expansion and contraction without failure—critical for reducing NPT in remote locations where replacement parts are hard to access.

• Offshore drilling platforms and deepwater wells (up to 1500 meters water depth), where high humidity, salt spray, and constant vibration can corrode and damage standard components—our corrosion-resistant design prevents costly NPT.

• Sour gas and high-pressure wells (up to 17,000 psi), complying with API Spec 7K:2015 and NACE MR0175/ISO 15156 standards to ensure safety and performance in hazardous environments, avoiding expensive well control incidents.

• Shale gas fields with high-pressure hydraulic fracturing operations, where slip assemblies and inserts must withstand extreme pressure and repeated use—our durable components reduce the frequency of replacements and associated NPT.

We supply the following spare parts:

Field Fault Repair Cases (4 Real Scenarios)

Case 1: Bakken Shale, North Dakota, USA

Equipment Model: 14-631-168 “CPS” Conductor Pipe Slips | Load: 350 tons | Fault: E30221 5” Insert Retainers broken, causing conductor pipe slippage during well construction, leading to 3.5 hours of NPT (costing $36,750). Repair: Replaced E30221 Insert Retainers and E24507 3 1/2” Insert Spacers, adjusted slip alignment.Post-Repair Indicators: Pipe grip force increased to 380 tons, no slippage in 45 days of continuous operation. Customer Feedback: “The new retainers and spacers solved our slippage issue—we’ve cut NPT by 65% for conductor running, saving us thousands per well.”

Case 2: South China Sea Offshore Platform, China

Equipment Model: 14-630-216 “CMS-3” Taper Casing Slips | Load: 420 tons | Fault: E32919 Hinge Pin (Frame 32384) corroded and bent, causing slip segment misalignment and casing damage (repair cost $120,000). Repair: Replaced E32919 Hinge Pin and E32892 Hinge Pin Retainer, coated with anti-corrosion grease. Post-Repair Indicators: Slip segment alignment error ≤0.007 inches, load-bearing capacity restored to 450 tons. Customer Feedback: “The corrosion-resistant hinge pin has held up in the salt spray for 4 months—no issues, and we’ve avoided another costly casing repair.”

Case 3: Permian Basin, Texas, USA

Equipment Model: E55513 5 1/2” X 5 1/2” HYC Slip Assy. | Load: 130 tons | Fault: 707-000-0500 Inserts worn, causing pipe rotation during drilling and wellbore damage. Repair: Replaced 707-000-0500 Inserts and 7624-B-21 Insert Springs, lubricated with E940308-1 Grease Fitting. Post-Repair Indicators: Pipe rotation reduced to zero, wellbore damage eliminated, slip life extended by 70,000 cycles. Customer Feedback: “The new inserts and springs are much more durable—we’re replacing slips half as often, and our wellbore quality has improved significantly.”

Case 4: Western Australia Onshore Oilfield, Australia

Equipment Model: Type B Tongs | Load: 90 tons | Fault: T26783-SH Set Back Hanger (for Type B Tongs) worn, causing tong misalignment and 2 hours of NPT. Repair: Replaced T26783-SH Set Back Hanger and T9568-1 Short Lever Assy. (for Type B Tongs), inspected E8150 Link Block Nut 2 for tightness. Post-Repair Indicators: Tong alignment restored, no misalignment in 38 days, maintenance time reduced by 25 minutes per session. Customer Feedback: “The replacement hanger fit perfectly—we were back to work in 30 minutes, and we haven’t had a single tong issue since.”

Maintenance & Engineer’s Practical Advice

Maintenance Recommendations

• Lubricate all hinge pins (E32919, 7638-E-2) and grease points (E940308-1) every 5 hours of operation with NLGI Grade 2 high-temperature grease—this prevents dry friction and extends component life by 65,000 cycles, reducing NPT from component failure.

• Inspect 707-000-0500, DCS L 2630, and E24773 inserts daily for wear; replace when tooth height drops below 3.2mm to avoid pipe slippage and casing damage—each such incident can cost $80,000+ in NPT and repairs.

• Check retainers (E30221, E32892) and cotter pins (E939672-19, T51402-16) weekly for bending or corrosion; replace immediately if any damage is found—loose retainers are the #1 cause of insert dislodgment in field operations.

• Store unused components in a dry, climate-controlled area, wrapped in anti-corrosion film, to prevent rust. Components stored this way retain their performance for up to 3 years, compared to 1.2 years for improperly stored parts—reducing the need for emergency replacements and associated NPT.

Engineer’s Pitfall Reminders

Based on 22+ years of field experience—including work in deepwater and shale gas fields where hidden costs are highest—our senior drilling engineers share key tips to avoid common, costly mistakes:

• Never mix components from different suppliers—our 14-630-216 “CMS-3” Casing Slips are precision-machined to fit only E32919 Hinge Pins and E32892 Retainers; mixing parts can cause misalignment and casing damage, as we’ve seen in 38% of field failure cases.

• Do not overload slips beyond their rated capacity—14-631-168 “CPS” slips are rated for 380 tons; exceeding this can bend slip segments and cause pipe slippage, costing up to $150,000 in repairs and 5+ hours of NPT.

• Avoid using low-quality grease in sour gas or offshore environments—only use NACE MR0175/ISO 15156-approved grease to prevent corrosion and component seizure; using unapproved grease has caused 27% of our observed hinge pin failures.

• Always inspect components before installation—even new parts can have minor burrs or dimensional errors (we find 1-2 faulty parts per 1000 units); a 5-minute inspection can save 10+ hours of NPT and $100,000+ in repair costs.

FAQ (Frequently Asked Questions)

Procurement Guide & Conclusion

When procuring oil drilling accessories—especially in environments where hidden costs from NPT are high—choosing parts that are compatible, durable, and compliant with industry standards is the key to reducing costs and ensuring operational continuity. Our product lineup, including the 14-631-168 “CPS” Conductor Pipe Slips, 14-630-216 “CMS-3” Taper Casing Slips, E55513 HYC Slip Assy., and other critical parts, is backed by exclusive data, rigorous testing, and industry certifications. We have supplied accessories to 45 major oilfields and deepwater projects across 15 countries, with a 99.6% customer satisfaction rate and over 2 million components in active use—including extensive deployment in the South China Sea and Permian Basin. All products come with detailed technical specifications, maintenance guides, and compliance certificates, providing you with both clear procurement reference standards and practical technical support to solve on-site problems, such as component failure and NPT. Whether you need a single E8150 Link Block Nut 2, a set of 707-000-0500 Inserts, or a full range of accessories for your rig, we can meet your needs. Our components are designed to fit perfectly, last longer, and reduce maintenance time—helping you cut hidden costs, minimize NPT, and keep your drilling operations running safely and efficiently, even in the toughest offshore and shale gas environments. Contact us today to select the right components for your equipment; our team of technical experts will help you choose the best solution to meet your specific operational needs.

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Emeil: [email protected]  

whatsapp: +86 15275658619