2,500,000 Pound Landing String Challenges: Have We Reached the Limit of Today's Technology?

Brock, J. R.; Chin, David A.; Sanclemente, Leianne

doi:10.2523/20823-ms

“…A 2.5-million pound, slip-based landing string system has been developed to respond to these increasing load requirements. 5 The 6-5/8 in., heavy wall, 165-ksi yield strength pipe incorporates an innovative thick walled section in the slip contact area for resistance to slip crushing loads and a uniquely designed dual diameter tool joint to increase elevator capacity (see Figure 5). Slips were specially engineered to equalize radial and axial loads, increase the pipe contact area, and optimize the contact angle to minimize the crushing loads on the pipe body.…”

Section: Ultra-high Capacity Landing String Systemmentioning

confidence: 99%

Technical Innovations and Important Guidelines for Demanding Drilling Applications

Jellison

¹

,

Chandler

²

,

Sanclemente³

2011

All Days

Self Cite

0

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Critical wells exceed the capabilities of S-135 drill strings. Drilling teams are evaluating advanced technologies to expand the drilling envelope. The paper details the development of ultra-high strength UD-165 drill pipe, provides comparisons with S-135, Al and Ti drill pipe and provides field trials summaries. New developments are necessary to drill and complete deeper and longer-reach wells. Rotary shoulder connections offer significant advantages when coupled with high-pressure seal technology for completion pipe and intervention risers. The paper provides details on critical applications that benefited from new connection technology.With water depths over 10,000 ft, well depths exceeding 34,000 ft, and extended-reach targets over 35,000 ft, operators are setting larger diameter and heavier casing. These casing strings require landing strings with setting capacities approaching 2.5-million pounds that extend the limits of tubular manufacturing and handling capabilities. The paper describes the technology advancements required to develop and implement an ultra-high capacity landing string system. A 6-5/8 in. drill pipe based riser system for offshore completion and intervention work has been successfully used for several years. The primary advantage of the drill pipe based system relates to the rotary shoulder connections (RSC). RSC makeup and breakout quickly, are rugged, and are superior at resisting galling and handling damage compared to casing connections that are often used for risers. The use of these intervention risers in sour gas areas has been prevented because there were no fully Sulfide Stress Cracking resistant tubular systems with RSC. This paper presents the successful result to develop and qualify an SSC resistant friction weld for intervention risers. Industry advancement has led to an increasing trend of drill stem downhole friction heating failures. The paper includes characteristics of these failures with case histories and prevention methods. Table 1 provides a summary of advanced material comparisons alongside S-135, Z-140, V-150 and UD-165 steel drill pipe products. 1 When considering strength to weight ratio, many publications have neglected to factor in the steel tool joints attached to the non-steel alternative material tubes. Rather, they have focused on the strength to weight ratio improvement of the material density only. This is somewhat misleading and errs on the side of promoting non-steel alternative materials. Table 1, however, factors the presence of steel tool joints and uses a conservative approach (optimistic) by analyzing Range III drill pipe products. Readers should note that Range III product lengths can offer handling efficiency advantages, but may present wear issues and higher potential for fatigue damage vs. Range II designs. Advanced Material TechnologiesAluminum drill pipe (Al DP) offers several potential advantages over conventional steel drill pipe including: lower weight, higher strength to weight ratio, superior corrosion resistance and enhanced resistance t...

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Advanced Technologies and Practical Guidelines for Challenging Drilling Applications

Jellison

¹

,

Spoerker

²

,

Chandler

³

et al. 2010

All Days

1

0

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This paper provides a review of recent technology advancements and addresses practical considerations associated with drillpipe and drill stem components for extreme drilling applications. Ultra-high torque double-shoulder rotary connections are often employed in these applications potentially complicating proper design and material selection for cross-overs, top-drive subs, pup joints and other accessories. These new connections often employ materials with higher strength requirements than standard API connections. The paper outlines recommendations for material strength and design parameters for various drills stem accessories. The latest generation of high angle and extended reach wells are encountering significantly higher side loads between the drillpipe and casing creating unprecedented levels of casing wear. Proper hardband selection, application and maintenance are essential to successfully and safely drill these critical projects. Hardband system trends for critical applications are highlighted, and recent hardband casing wear and tool joint protection test results obtained using an advanced hardband wear machine are discussed.Due to the dramatic increase in oil prices the industry has seen a re-emergence of deep and ultra-deep drilling projects that encounter H 2 S gas. The paper provides an update on the latest sulphide stress cracking resistant drillpipe grades along with initial results from a study of the effect on S-grade drillpipe samples to various H 2 S exposure concentrations, representing typical conditions when circulating a gas kick to surface. Sour service drillpipe, built with SSC resistant upset tubes and tool joints, has been available for some time. The friction welds joining the upset tubes and tool joints were not resistant to SSC. This paper presents the successful development and qualification of SSC resistant friction welds for critical sour applications. The surge in critical drilling has led to an increasing trend of drill stem friction heating failures. The paper includes characteristic features of these failures along with case histories and prevention methods.

show abstract

Advanced Technologies and Practical Guidelines for Challenging Drilling Applications

Jellison

¹

,

Chandler

²

,

Sanclemente³

2011

SPE Asia Pacific Oil and Gas Conference and Exhibition

0

View full text Add to dashboard Cite

Critical wells exceed the capabilities of S-135 drill strings. Drilling teams are evaluating advanced technologies to expand the drilling envelope. The paper details the development of ultra-high strength UD-165 drill pipe, provides comparisons with S- 135, Al and Ti drill pipe and provides field trials summaries. New developments are necessary to drill and complete deeper and longer-reach wells. Rotary shoulder connections offer significant advantages when coupled with high-pressure seal technology for completion pipe and intervention risers. The paper provides details on critical applications that benefited from new connection technology. With water depths over 10,000 ft, well depths exceeding 34,000 ft, and extended-reach targets over 35,000 ft, operators are setting larger diameter and heavier casing. These casing strings require landing strings with setting capacities approaching 2.5-million pounds that extend the limits of tubular manufacturing and handling capabilities. The paper describes the technology advancements required to develop and implement an ultra-high capacity landing string system. A 6-5/8 in. drill pipe based riser system for offshore completion and intervention work has been successfully used for several years. The primary advantage of the drill pipe based system relates to the rotary shoulder connections (RSC). RSC makeup and breakout quickly, are rugged, and are superior at resisting galling and handling damage compared to casing connections that are often used for risers. The use of these intervention risers in sour gas areas has been prevented because there were no fully Sulfide Stress Cracking resistant tubular systems with RSC. This paper presents the successful result to develop and qualify an SSC resistant friction weld for intervention risers. Industry advancement has led to an increasing trend of drill stem downhole friction heating failures. The paper includes characteristics of these failures with case histories and prevention methods.

show abstract

2,500,000 Pound Landing String Challenges: Have We Reached the Limit of Today's Technology?

Cited by 5 publications

References 3 publications

Technical Innovations and Important Guidelines for Demanding Drilling Applications

Technical Innovations and Important Guidelines for Demanding Drilling Applications

Advanced Technologies and Practical Guidelines for Challenging Drilling Applications

Advanced Technologies and Practical Guidelines for Challenging Drilling Applications

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