Octal Pipe recently completed an API 5CT casing delivery for Halliburton(Founded in 1919, Halliburton is one of the world's leading providers of products and services to the energy industry), covering multiple sizes and grades for field requirements. The order includes seamless casing in K55, L80, and P110, all prepared under a traceable shipment workflow and released with a complete documentation set for smoother receiving inspection at destination.
Order Overview
- Standard: API 5CT
- Product: Seamless Casing (R3)
- Items:
20" 133# K55, R3, BTC, Seamless
13-3/8" 72# L80, R3, TP, CQ D, Seamless
9-5/8" 53.5# P110, R3, TPCO D, Seamless
7" 32# P110, R3, TPCQ D, Seamless
- Destination Port: Luanda, Angola
API 5CT Casing Shipment-Delivery to Halliburton
API 5CT Casing Advantages & Applications
API 5CT casing is used in well construction to support wellbore integrity and provide a stable path for cementing and zonal isolation. For projects with mixed sections and different load requirements, casing strings often combine multiple grades and sizes-this is where controlled specification and identification matter.
Seamless casing delivers consistent wall integrity and is commonly selected for demanding sections where uniform performance is expected.
Example 1: In deep onshore wells, operators often run higher-strength casing in the lower sections to handle higher collapse and tensile loads during running and cementing.
Example 2: In offshore or coastal projects with strict logistics schedules, mixed-size casing programs benefit from clear marking and batch traceability-so the right bundles are picked quickly during port staging and delivered to the rig without delays.
Grade coverage for different well sections:
K55 is widely used where standard strength requirements are sufficient, such as upper sections or intervals with lower load demands.
L80 is commonly selected for projects requiring stronger performance with material control aligned to service conditions, often used in intermediate or production strings where corrosion or service requirements are tighter.
P110 is often used where higher strength is needed for deeper wells and higher loads, typically in lower sections of the casing program.
R3 length range helps reduce the number of connections in the string, improving running efficiency and reducing connection-related handling time.
BTC connections are widely used in casing strings for robust make-up characteristics and field familiarity, supporting stable running operations when managed with proper handling and end protection.
Port Staging & Shipment Process
This shipment followed a step-by-step export routine designed for safe handling, clear traceability, and faster receiving inspection:
1.Port warehouse receipt inspection
Quantity, appearance, and marking verification upon arrival at the port yard.
2.Specification-based stacking
Casing was sorted and staged by OD / weight / length, keeping markings visible and bundles positioned for safe crane/forklift handling.
3.Sampling inspection
Dimensional and visual checks were performed on a sampling basis, with records filed when required.
4.Rust prevention & protection
End caps/protectors were installed and rechecked during staging; wrapping/separation was applied where needed to reduce abrasion and contamination during yard movement.
5.International standard packaging
Steel strapping, confirmed lifting points, and clear bundle tags were applied for stable handling and identification.
6.Container loading preparation
Before stuffing, bundles were verified line-by-line against the Packing List, and heat/batch references were confirmed to keep traceability clean.
7.Port loading operation
Hoisting/forklift transfer was carried out with lashing and reinforcement to reduce shifting risk during ocean transport.
8.Sea export shipment
The shipment was released only after inspection status, packing status, and the final document package were aligned for destination receiving.
Real-world example from mixed-spec loads: when K55/L80/P110 are shipped together, bundles are staged in separate yard zones by grade and size. Tags stay outward-facing for quick cross-checking during loading, reducing mix-up risk when the cargo is unloaded and distributed at site.
Common Problem
How do you ensure K55 / L80 / P110 are not mixed during shipping?
Bundles are staged by specification at the port, tags remain visible, and each bundle is verified against the Packing List with heat/batch references before container loading.
What documents are included for receiving inspection at Luanda?
A complete shipment document package aligned with the Packing List and bundle markings, supporting heat/batch traceability for quick receiving checks.
How are casing ends and connections protected during port handling and sea freight?
End caps/protectors are installed and rechecked during port staging; bundles are strapped and lashed to reduce bevel/thread damage and shifting during transport.
Can third-party inspection be arranged for packing or loading witness?
Yes. Witness points can be aligned with the project ITP (e.g., final inspection, packing verification, loading checks), and the third-party report can be included in the final document package when required.
Certifications
CE Certificate
ISO 9001 Certificate
API Q1 Certificate
ABS Certificate
AP-5L Certificate
API-5CT Certificate
