Casing and Tubing

 

SPS Ltd and SPS Caribbean Ltd are suppliers of casing and tubing for oil and gas wells. Casing is steel pipe that  lines the drilled hole to keep it open and to seal off the different geological strata. Tubing is the conduit through which the oil or gas flows to the surface. Pipe for both applications is made in lengths of approximately 13 metres (42 feet) with screw threads at each end. It is then screwed together on the drilling rig and lowered into the well to form a continuous "string" that can be 7.5 kilometres (5 miles) long. The diameter, thickness and grade of steel from which the pipe is made and the design of screwed connection are selected to meet the well conditions. In many cases the pipe dimensions, steel grade and connection can be selected independently.

The base specification for these products is API 5CT or the generally equivalent ISO 11960. In some applications these specifications do not provide a suitable product.

 

 

 

 Click on any of the links below to jump to the technical specification of that product

H40 | J55 | K55 N80 P110 |


Sizes:
Tubing from 1 1/4" thru to 4 1/2" in all grades with standard API or premium gastight connections
Casing from 5" thru to 20" in all grades with alternative connections

 
All types of accessories for the above including pup joints,x-overs etc. Conductor pipe in any size or grade
 

Technical Specifications

 

H40

 
Minimum Yield Strength:  40,000 psi
Maximum Yield Strength:  80,000 psi
Minimum Tensile Strength:  60,000 psi
Hardness Requirement:  None
   
Notes: General purpose pipe manufactured to API specification 5CT  
   
J55  
Minimum Yield Strength:  55,000 psi
Maximum Yield Strength:  80,000 psi
Minimum Tensile Strength:  75,000 psi
Hardness Requirement:  None
   

Notes: General purpose pipe manufactured to API specification 5CT. Similar to K55 except the minimum tensile strength is lower. Usually, this grade is used in tubing applications.

 
   
K55  
Minimum Yield Strength:  55,000 psi
Maximum Yield Strength:  80,000 psi
Minimum Tensile Strength:  95,000 psi
Hardness Requirement:  None
   
N80  
Minimum Yield Strength: 80,000 psi
Maximum Yield Strength: 110,000 psi
Minimum Tensile Strength: 100,000 psi
Hardness Requirement: None
   
Notes: General purpose pipe manufactured to API specification 5CT  
   
P110  
Minimum Yield Strength: 110,000 psi
Maximum Yield Strength: 140,000 psi
Minimum Tensile Strength: 125,000 psi
Hardness Requirement: None
   
Notes: API grade for general use in deep wells. This grade is not generally considered suitable for sour condensate wells  

 

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SPS World – a division of Specialised Pipe & Services Ltd
Tel: +44 (0)1482 587060 Email: info@spsworld.com