Technical Innovations Cut Sidetracking Time/Costs

Tybero, Pal; Bailey, Thomas A.; Billeaud, Steve

doi:10.2523/36671-ms

Cited by 2 publications

(2 citation statements)

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“…Operators recognize the many benefits the technology offers, which have been driven by slot availability on aging platforms, better reliability and feasibility of casing whipstock and milling systems, and increased reservoir knowledge 3 .…”

Section: Cases Support Sidetracking With Solid Expandable Tubularsmentioning

confidence: 99%

Window Exit Sidetrack Enhancements Through the Use of Solid Expandable Casing

Mark

Demong

Faraj

2004

Proceedings of IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition

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fax 01-972-952-9435. ProposalWhen most operators think of solid expandable casing, they primarily focus on their application as it relates to solving hole problems while minimizing any loss of hole size incurred by running a casing string. A new application for solid expandable casing quickly growing in popularity uses the tubulars to sidetrack through a milled window. Solid expandable casing can minimize, if not eliminate, many of the obstacles associated with sidetracking.The historic drawback of losing hole size through the window exit can be largely eliminated by using solid expandable casing. These tubulars enable the hole section to be drilled beyond the expandable casing with larger drill pipe and bottomhole assemblies (BHAs), including measure-whiledrilling (MWD) and logging-while-drilling (LWD) tools, which may have been impossible with a conventional sidetrack. Larger production tubulars and related completion equipment add to the value generated by using the solid expandable casing. This technique can also be instrumental in initiating slot recoveries that might not otherwise be economically viable.As with other applications of solid expandable casing, a successful installation requires proper pre-job planning. This paper reviews issues critical for success and also looks at specific examples of installations performed to date. Other technologies associated with expanding the solid casing will also be discussed in the context of wells already completed or in the planning stages. The economic benefits of this technique will also be explored.

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Section: Cases Support Sidetracking With Solid Expandable Tubularsmentioning

confidence: 99%

Window Exit Sidetrack Enhancements Through the Use of Solid Expandable Casing

Mark

Demong

Faraj

2004

Proceedings of IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition

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“…It is an effective technology that allows increasing residual gas production and recovering damaged wells (Koshovkin et al 2008;Chuanzhi and Xiaoyan 2013). With the application of various drilling tools and instruments (Tybero et al 1996;Qiu and Miska 1999;Pineda et al 2013;Kong et al 2017), the technology has been developed quickly, and it has obtained more obvious economic benefits than drilling a new vertical well. At present, sidetracking technology is very mature, not only the horizontal wells with various curvature radii can be completed in the sidetracking hole, but also the multi-branch wells can be sidetracked in a main wellbore (Yang et al 2017;Yue et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Old well sidetracking selection standards: Sulige low-permeability gas field, China

Yuan

Zhang

Yan

et al. 2020

J Petrol Explor Prod Technol

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The old well sidetracking technology is an effective means to stabilize production and increase recovery in later stage of gas field development. Based on economical and reservoir geologic parameters of Sulige low-permeability gas field in China, method and procedure of old well sidetracking selection standards are established, which can effectively improve the sidetracking effect and adequately develop remaining gas. Comprehensively considering corresponding economic parameters including sidetracking drilling cost, operating cost, management cost, gas production rate and gas price, recoverable reserve standard of sidetracking well is determined first. According to gas recovery, gas-bearing area, porosity and gas saturation, standards of remaining geological reserve, reserve abundance and gas pay thickness of sidetracking well are obtained. According to extension direction and distribution characteristics of the sand body in research area, numerical simulation conceptual model of typical sidetracking horizontal well is established, and then standards of old gas well production rate and gas cumulative production rate for sidetracking are obtained. According to the standards, well Su 36-6-9CH is selected to be sidetracked as a horizontal well and its development effect is good. The method has important value of popularization and application in similar low-permeability gas reservoir.

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Technical Innovations Cut Sidetracking Time/Costs

Cited by 2 publications

References 0 publications

Window Exit Sidetrack Enhancements Through the Use of Solid Expandable Casing

Window Exit Sidetrack Enhancements Through the Use of Solid Expandable Casing

Old well sidetracking selection standards: Sulige low-permeability gas field, China

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