Casing Advancement Systems
Casing Advancement Systems for Overburden Drilling
98.51% Less CO2 than Prime Steel!
Casing Advancement Systems: we can make hardened alloy steel casing shoes to order, and we can also take care of welding shoes and ring bit assemblies to casing when required.
We can make hardened alloy steel casing shoes to order, and we can also take care of welding shoes and ring bit assemblies to casing when required. John Lawrie Tubulars’ Casing Advancement Systems are manufactured in the UK.
Casing lengths and specifications can usually be produced to specific requirements. Listed below are the casing and shoe sizes for the most popular systems. Other sizes are available on request, and we can, of course, also supply the Drill Rods. Contact our knowledgeable sales team to discuss your exact requirements.
| Outside Diameter | Wall Thickness | Thread Type |
|---|---|---|
| 114.3 | 6.4 | Modified Square |
| 114.3 | 8.0 | Single or Double Start Klemm |
| 139.7 | 6.4 | Modified Square |
| 139.7 | 8.0 – 9.5 | Single or Double Start Klemm |
| 168.3 | 8.0 – 9.5 | Single or Double Start Klemm |
| 193.7 | 8.0 – 9.5 | Single or Double Start Klemm |
| 219.1 | 9.5 – 12.7 | Single or Double Start Klemm |
| 254.0 | 9.5 – 12.7 | Single or Double Start Klemm |
| 273.1 | 9.5 – 12.7 | Single or Double Start Klemm |
Frequently Asked Questions
The tubulars arrive at our yard mainly by lorry but occasionally also unload containers. The loads go across the weighbridge before being taken into the yard to be unloaded. The tubulars are visually inspected for any noticeable defects or excessive wear. Wall thickness is checked to make sure it meets our specification. Material is then split into carbon steel or %CR material. Any material which requires cleaning is put to our high-water pressure cleaner before going to storage bays awaiting an order.
We operate two fully automated saws for the cutting of the tubulars to the customer’s specifications. The tubulars require cutting for many reasons including access at the site or the pitch of the rig. We have also had custom made machined spud joints manufactured for use with plain end pipe.
John Lawrie Tubulars have a large inventry of stock on the ground and take pride in our close working relationships with our haulage companies. We can deliver to site as quickly as the next working day!
For the safe and easy unloading of steel pipe at site, we offer customers the option of having the pipe slung with fully certified slings prior to departure from our operations yard. For orders where shorter material is required – 2.5 meters and under – we palletise the load.
