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Sour Service Products

Our sour service products include an array of engineered drill pipe and heavy weight drill pipe grades designed to resist sulfide stress cracking.

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  • Ruler Specifications
Description

Minimize failure due to H2S and feel confident when facing harsh, sour environments

Drill string components are exposed to severe stress conditions when drilling challenging wells. In sour environments, there is the additional need to provide maximum mechanical performance without sacrificing H2S resistance. To successfully drill in harsh drilling environments, drill pipe needs high strength to improve mechanical properties and low hardness to resist sulfide stress cracking (SSC).

To help you drill safely and efficiently in harsh, sour conditions, Grant Prideco has developed enhanced materials that deliver outstanding performance while resisting sulfide stress cracking.

Due to limited sour service specifications, the industry has established mechanical and chemistry recommendations through organizational bodies like the National Association of Corrosion Engineers (NACE) and Canada’s Industry Recommended Practices (IRP). Grant Prideco has extensive experience in manufacturing drill pipe and accessories for sour service applications, and we were the first manufacturer to meet stringent IRP requirements.

Material enhancements

  • Proprietary grades for H2S environments
  • Proprietary chemical compositions
  • Advanced heat treatment processes
  • Optimum fracture toughness
  • Controlled yield strength and restricted hardness
  • Tuff-Weld™ heat treatment process for improved weld strength

Advanced Sour Service Grade Drill Pipe

HS3™ 125 provides an extra 19% tensile capacity compared to that of previous 105-ksi Specified Minimum Yield Strength (SMYS) commercial grades. The controlled yield tool joints have the same strength that API specifies, delivering the full connection torque capacity.

XS2™ 95 offers a completely SSC-resistant intervention and completion string. Intervention systems operate in environments that cannot always be controlled, and prolonged exposure to H2S may occur. With a weld area that is SSC-resistant, XS2 95 saves time and money in deepwater applications.

Commercial Sour Service Grade Drill Pipe

XD™ Grade is designed for the most severe H2S environments. Our XD grades feature restricted yield tool joints and a NACE TM0177 Method A tested tube for optimum fracture toughness, controlled yield strength, and restricted hardness. It is available in XD 95 and XD 105 with respective 95- and 105-ksi tube SMYS.

TSS™ Grade is a variation of our XD product, featuring a NACE-tested tube and API tool joints with an SMYS of 120-ksi. It is typically used in drilling applications in which connection strength is required and H2S embrittlement is well mitigated. We offer TSS 95 and TSS 105 with respective 95- and 105-ksi tube SMYS.

Customized Sour Service Grade Drill Pipe

CYX™ is a family of grades that enable end users to customize the drill pipe used to deliver their wells by changing a limited number of parameters: SMYS of tube or tool joints and the option to NACE test or not. Contact your Grant Prideco representative to further discuss your specific needs.

Sour Service Grades for Heavy Weight Drill Pipe (HWDP)

XD™ 90 is an ideal solution for sour service environments in which wear resistance, weight, and flexibility are required. Available for standard and spiral products, XD 90 material features a tempered martensitic microstructure for enhanced fracture toughness along with a controlled yield strength and restricted hardness.

IRP Sour Service Grade Drill Pipe and HWDP

SS Grade is specifically designed and manufactured to meet stringent Canadian IRP requirements. These special alloy materials combine reduced carbon chemistries with advanced quench-and-temper processes for optimal SSC resistance, even in highly concentrated H2S environments.

 

Specifications

NACE Specifications for Grant Prideco Sour Service Grades

Grade Name

Tube SMYS (ksi)

Tube NACE Testing (TM0177)

Tool Joint SMYS (ksi)

Tool Joint NACE Testing (TM0177)

HS3™ 125

125

Method A, Solution D, 80% SMYS

120

Not applicable, controlled yield

XD™ 105

105

Method A, Solution A, 85% SMYS

105

Not applicable, controlled yield

TSS™ 105

105

Method A, Solution A, 85% SMYS

120

Not applicable

XS2™ 95

95

Method A, Solution A, 85% SMYS

110

Method A, Solution A, 65% SMYS

XD™ 95

95

Method A, Solution A, 85% SMYS

105

Not applicable, controlled yield

TSS™ 95

95

Method A, Solution A, 85% SMYS

120

Not applicable

XD™ 90

90

Method A, Solution A, 85% SMYS

100

Not applicable, controlled yield

The above table represents NACE specifications for Grant Prideco sour service grades.

Note that conventional API high-strength grades consistently fail NACE testing.

Advanced Sour Service Grade Drill Pipe

Our new HS3 125 advanced sour service grade extends your reach and helps to minimize failure due to H2S.

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