An experimental system for coiled tubing partial underbalanced drilling (CT-PUBD) technique

2018 ◽  
Vol 89 (5) ◽  
pp. 055108 ◽  
Author(s):  
H. Z. Shi ◽  
Z. S. Ji ◽  
H. Q. Zhao ◽  
Z. L. Chen ◽  
H. Z. Zhang
Keyword(s):  
Experimental System ◽  
Coiled Tubing ◽  
Underbalanced Drilling

Feasibility Study of Underbalanced Drilling Using Coiled Tubing (CT-UBD): A Case Study of Field A, Indonesia

2013 ◽  
Author(s):  
Lamdamatra Arliyando ◽  
Samuel Sinaga ◽  
Gde Valdy Arimbawa ◽  
Bonar Tua Halomoan Marbun
Keyword(s):  
Feasibility Study ◽  
Coiled Tubing ◽  
Underbalanced Drilling

Improving the Efficiency of Gas-Storage-Well Completions Using Underbalanced Drilling With Coiled Tubing

2005 ◽  
Author(s):  
James Weber ◽  
David William Stilson ◽  
Donald W. McClatchie ◽  
Stewart L. Denton ◽  
Lee Russell King
Keyword(s):  
Gas Storage ◽  
Coiled Tubing ◽  
Underbalanced Drilling ◽  
Well Completions

Experimental Study on the Mechanics of a Coiled Tubing Working Within a Marine Riser Under the Affection of Marine Loads

2019 ◽  
Author(s):  
Yingchun Chen ◽  
Chang Wang ◽  
Xinhua Wang ◽  
Wenming Wang ◽  
Wenda Wang
Keyword(s):  
Axial Force ◽  
Oil And Gas ◽  
Excitation Frequency ◽  
Experimental System ◽  
Transfer Efficiency ◽  
Force Transmission ◽  
Marine Riser ◽  
External Excitation ◽  
Pipe System ◽  
Coiled Tubing

Abstract Due to its unique advantages, coiled tubing is now widely used in marine oil and gas exploitation operations, while the mechanical behavior of coiled tubing working within a marine riser affected by marine loads is still unknown. By building an indoor simulation experimental system, the mechanics of this pipe-in-pipe system was studied, and the effect of the lateral excitation on the axial force transmission of inner pipe was clarified. It was found that, when the external excitation frequency was within the first natural frequency range of the outer pipe, the external excitation would increase the axial load transfer efficiency of the inner pipe, and the axial force transfer efficiency of the inner tube would reach the maximum when the resonance of out pipe occurred. The results can be helpful on the understanding of mechanics of a coiled tubing working within a marine riser.

Unlocking Oman's Tight Gas Potential using State-of-the-Art Underbalanced Coiled Tubing Drilling Technologies

2021 ◽  
Author(s):  
Stephen Lynn ◽  
Sumith Manoharan ◽  
Souhaibe Barkat ◽  
Saleh Al-Ruzeiqi ◽  
Yan Terras ◽  
...  
Keyword(s):  
State Of The Art ◽  
Integrated Management ◽  
Tight Gas ◽  
Rotary Drilling ◽  
Fully Integrated ◽  
Coiled Tubing ◽  
Underbalanced Drilling ◽  
Drilling Tools ◽  
Energy Service ◽  
Gas Potential

Abstract With the large amount of tight gas reserves remaining in Oman, new innovative techniques and methods to unlock these reserves have become imperative for the future economic success and stability of the country. Among the various technologies considered, the concept of underbalanced coiled tubing drilling (UBCTD) was introduced. In order to address the harsh downhole challenges such as high temperatures, deep burial depths, under pressured reservoirs, abrasive and hard sands and logistical constraints; a fully integrated well delivery solution was developed jointly by the operator and energy service company. In accordance with this strategy, best in class downhole drilling tools, a state-of-the-art fully automated coiled tubing drilling unit together with technical and project management experts were deployed. Application specific solutions to the challenging subsurface conditions included utilization of underbalanced drilling (UBD) techniques, deployment of high temperature drilling assemblies, fit-for-purpose bit drive mechanism and a robust integrated management system. All of the above was achieved whilst ensuring the safety of all personnel during the project and reducing carbon emissions through a flare minimization strategy and diesel consumption reduction initiatives. Over the course of the pilot campaign, reservoir exposure per well was doubled, average penetration rate compared to conventional rotary drilling was more than tripled and incremental production improvements of up to 230% were observed. This paper discusses the challenges faced and the solutions implemented during this three well pilot campaign.

Coiled-Tubing Underbalanced Drilling Applications in the Lisburne Field, Alaska

2007 ◽  
Author(s):  
Mark Olaf Johnson ◽  
Patrick Richard Brand ◽  
Samuel French ◽  
Jon Greggory Sarber ◽  
David L. Hildreth ◽  
...  
Keyword(s):  
Coiled Tubing ◽  
Underbalanced Drilling
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