New generation of Sour Service Drill Pipe allows addressing highly sour field challenges

Abstract Pipe cutting operations are often a critical part of stuck pipe situations, well interventions and plug and abandon operations which all need to remove cut sections of pipe from the well. Unlike traditional ‘blade’ style e-line cutters, which can jam under pipe compression or explosive pipe cutters, which need to dress-over the jagged cut by the rig, a new electric line mechanical cutter's unique design enables performance even if the pipe is under compression, in tension or is neutral. It can also perform multiple cuts in the same run, while creating a clean and machined cut with tool-entry friendly shape. This paper will describe the technology of the new generation cutter, present two case histories; one of multiple cuts of stuck drill pipe, per each run in hole, from Germany and one of a critical tubing cut from a subsea well in Nigeria, using electric wireline and tractor conveyed services for many tasks traditionally performed with coiled tubing in highly deviated wells. These "light vs heavy" solutions can often be done off-line from the rig.

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Increasing Drilling Performance in ERD Wells with New Generation Drill Pipe

10.1190/urtec2013-108 ◽

2013 ◽

Cited By ~ 1

Author(s):

Luc Van Puymbroeck ◽

Henry Williams

Keyword(s):

Drill Pipe ◽

Drilling Performance ◽

New Generation

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Simulated Research on Hot Forming Mechanism of Sour Service Drill Pipe Steel

Materials Science Forum ◽

10.4028/www.scientific.net/msf.704-705.266 ◽

2011 ◽

Vol 704-705 ◽

pp. 266-272

Author(s):

Mei Juan Hu ◽

Peng Wang ◽

Li Hong Han ◽

Xin Li Han

Keyword(s):

Constitutive Equation ◽

Hot Deformation ◽

Pipe Steel ◽

True Strain ◽

Drill Pipe ◽

Peak Stress ◽

True Stress ◽

Experimental Results ◽

Strain Rates ◽

Sour Service

The dynamic mechanical behaviors of as-cast sour service drill pipe steel under development during hot deformation were studied in this paper by using Gleeble-3500 thermal mechanical simulator. The compressions were carried out at the temperature of 900°C, 1000°C, 1100°C, 1200°C and strain rates of 10s-1, 1s-1and 0.1s-1. The compress degree was about 70%, and then the maximum true strain for each specimen was 1.2. The experimental results show that the peak stress was related to the compression temperatures and the strain rates. Through respectively analyzing and studying the true stress-true strain curves, the hot deformation constitutive equation and the deformation activation energy were obtained by regression analysis. The evolution of microstructures at various strain rates and temperatures was discussed. Experimental results can provide scientific basis for analyzing the hot deformation processes and controlling quality. Keywords: sour service drill pipe, hot compression, true stress-true strain, constitutive equation, microstructure

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18 3/4" 15000 Psi Shear Anything KBOS for Subsea Well Applications

10.4043/31048-ms ◽

2021 ◽

Author(s):

Bobby J Gallagher ◽

Ken Dupal ◽

Reese E Jones

Keyword(s):

Drill Pipe ◽

High Strength ◽

Pressure Control ◽

Risk Profile ◽

Sealing Capacity ◽

Industry Standards ◽

Kinetic Pressure ◽

And Function ◽

Sour Service ◽

Function Testing

Abstract Kinetic Pressure Control has developed the 18 ¾" 15000 psi blowout stopper (KBOS) system for applications on all subsea well activities. The 18 ¾" 15000 psi systems builds upon the successful development of the 5-1/8" 15000 psi KBOS system for surface BOP applications[5]. The system can be configured within the existing subsea BOP, by replacing a casing shear ram or blind shear ram, or can be configured as a shut-in device below the BOP. The KBOS system provides a significant improvement over existing shear ram technology, providing the ability to shear/seal any items in the wellbore, which reduces the likelihood of a blowout, resulting in an improved risk profile. The KBOS is a proprietary design which uses a pyro-technical, electrically initiated process the actuate the shearing process. The system has been designed and tested to actuate and shear/seal in milliseconds, under full wellbore flowing conditions and meets NACE/ISO sour service requirements without exemptions. The control system includes real-time monitoring and function testing capabilities, and requires minimal in-service maintenance, as the working components are isolated from the wellbore fluids. A computational predictive model has been developed, with a test regime conducted to validate the model results. A full qualification program, with 3rd party certification, has been completed to industry standards. Shearing tests have been conducted for a large range of tubulars which have been challenging to shear with existing technology. These include: 9 ½" drill collars, combinations of large OD casing and inner strings, high strength drill pipe and tool joints, wireline, and production tubing. A subsea test of the system was successfully performed in 2019 to shear large OD casing and inner string. The KBOS system utilizes technology from other industries (ballistics, military, automotive) to provide improved shearing and sealing capabilities for all well activities (drilling, completion, intervention). The improved shearing/sealing capacity and reduced time enable a reduced likelihood of a blowout and improved risk profile

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