Product: Standard Service (NBR) Redress Kit for Model E-4 Setting Tool (#10 & #20)

1. Executive Summary: The Economic Standard for Routine Completions

Not every well is a High-Temp/High-Pressure (HPHT) monster. For the thousands of vertical wells, shallow laterals, and standard pump-down operations performed daily, you need a maintenance solution that balances Cost-Efficiency with Absolute Reliability.

Our Standard Service (NBR) Redress Kits are the certified choice for rebuilding Baker Style Model E-4 Wireline Pressure Setting Assemblies (WPSA). Engineered with premium 90 Durometer Nitrile (Buna-N), these kits provide the robust sealing required to set bridge plugs and packers in temperatures up to 250°F (121°C). Whether you are running a Size #10 tool in 4.5″ casing or a Size #20 tool in 7″ casing, Royal Way ensures your tools are redressed to factory specs for a fraction of the OEM cost.

2. Compatibility Guide: Size #10 vs. Size #20

While both tools look similar, they are dimensionally distinct. Our kits are precision-packaged to fit the specific Model E-4 tool sizes.

Select Your Kit Size:

Option A: Size #10 Redress Kit

• Tool OD: Approx. 2-1/8″ (2.125″)

• Casing Range: Typically used for 4-1/2″ casing and smaller.

• Setting Force: Rated for ~35,000 lbs shear force.

• Common Use: Thru-tubing operations, small bore plugs.

Option B: Size #20 Redress Kit

• Tool OD: Approx. 3-1/2″ to 3-3/4″

• Casing Range: Typically used for 5-1/2″, 7″, and 9-5/8″ casing.

• Setting Force: Rated for ~55,000 lbs shear force.

• Common Use: Large bore frac plugs, cement retainers, packers.

⚠️ SHOP TIP: The O-rings in a #20 kit are significantly larger. Do not attempt to stretch #10 seals onto a #20 tool, or bunch up #20 seals on a #10 tool. Always verify the tool OD before opening the bag.

3. Material Science: Why “Royal Way” NBR?

Not all Nitrile is created equal. Generic “hardware store” O-rings often lack the modulus to withstand the violent pressure spike of a power charge.

• 90 Durometer Hardness: We use a rigid 90 Shore A compound. This hardness is critical to resist Gap Extrusion when the internal oil pressure spikes to 10,000+ PSI during the setting sequence.

• Petroleum Resistance: Our NBR formulation is optimized for compatibility with standard hydraulic oils (like Royco or ATF) and wellbore hydrocarbons.

• Temperature Rating: Safe for continuous operation from -20°F to +250°F.

  • Note: If your well temperature exceeds 250°F, please upgrade to our Viton® (FKM) Kit.

4. Kit Contents: What’s in the Bag?

We provide a complete overhaul solution. You don’t need to scavenge for extra parts.

1. Floating Piston Seals (Critical):

   • Includes the primary dynamic O-ring for the piston.

   • Includes 2x PTFE Backup Rings: Even for Standard Service, we always include Teflon backups for the piston to prevent blow-by and soft sets.

2. Cylinder Head / Top Sub Seals:

   • Static O-rings to seal the oil chamber connection.

3. Manual Bleed-Off Valve Seals:

   • Replacement seals for the pressure release screw. Safety Rule: Replace these every run.

4. Lower Adapter / Mandrel Seals:

   • Seals to prevent well fluid ingress at the bottom of the tool.

5. Setting Sleeve Seals: (Where applicable for specific tool revisions).

5. Technical Specifications

6. Operational Best Practices: Preventing Misruns

• The “Standard” Mistake: Using NBR in a hot well.

  • Scenario: A well is logged at 280°F. The tech uses an NBR kit to save $20.

  • Result: The NBR takes a compression set (flattens) on the trip down. When the charge fires, the seal fails to hold pressure, oil bypasses the piston, and the plug doesn’t set.

  • Rule: Always abide by the 250°F limit for NBR.

• Lubrication: Use a high-quality O-ring lubricant. Ensure the cylinder walls are free of rust or pitting before installing new seals.

• Storage: Keep NBR kits away from direct sunlight (UV) and ozone sources (electric motors) in the shop, as NBR is sensitive to UV degradation.

7. Why Royal Way?

• Batch Traceability: Every bag is printed with a Lot Number and Cure Date.

• Inventory Security: We keep thousands of kits in stock for high-volume wireline providers.

• Guaranteed Fit: If your tool is a standard Baker E-4 style, these seals will fit. Period.

8. Ordering Information