Field Trials Using an All Metal Ring Seal Floating Packer

Lombard, Michael S.; Townsend, T.U.; Ramirez, Enrique; Zambrano, Mauricio; Ricardo, Jesús Estupiñán; Vargas, Leo; Albornoz, Jose Francisco; Cardona, Marcela Arteage

doi:10.2118/153839-ms

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…The metal seals can meet these requirements of safety working conditions in the downhole; thus, they are widely used in some oil‐gas well operations . Specifically, the metal seals utilize a flexible metal seal as their external seal element to contact the internal sealed element, and then form a tight and durable seal, which can withstand the high pressure, high temperature, and corrosive‐fluid conditions in oil‐gas wells . Zhao et al established the theoretical relationships between the contact stress of subsea X‐tree wellhead connector sealer and its independent variables.…”

Section: Introductionmentioning

confidence: 99%

“…15,16 Specifically, the metal seals utilize a flexible metal seal as their external seal element to contact the internal sealed element, and then form a tight and durable seal, which can withstand the high pressure, high temperature, and corrosive-fluid conditions in oil-gas wells. [17][18][19][20][21][22][23][24] Zhao et al 25 established the theoretical relationships between the contact stress of subsea X-tree wellhead connector sealer and its independent variables. The analytical results were consistent with the simulation results well via the FEM; however, the effect of plastic deformation is not taken into account.…”

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confidence: 99%

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Contact mechanical behaviors of radial metal seal for the interval control valve in intelligent well: Modeling and theoretical study

Yang

Zhu

et al. 2019

Energy Science & Engineering

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Intelligent wells equipped with the interval control valve (ICV), which have the potential applications to significantly improve oil production or control the water production of wells and fields, are more and more widely utilized in the oilfields. The radial metal seal of an ICV is intended to isolate the flow of produced fluids between the casing annulus and the well tubing. The contact mechanical behaviors of the radial metal seal are essential to the structural design and reliability of ICVs in the intelligent well. In this paper, the two‐dimensional axisymmetric assembly of the radial metal seal and the closure member is abstracted as a combination of interference fit model and cantilever beam model. Based on that, the related theoretical model, between the radial metal seal's contact stress and its independent variables, has been derived. Next, numerically simulations of contact stress between the radial metal seal and the closure member for different independent variables are conducted by the finite element method (FEM) to validate the theoretical model. It is found that the mean absolute value of relative error between the numerical and theoretical results of the contact stress is approximately 10%. Additionally, the structural parameters of the radial metal seal are proposed with the absolute value of relative error <10%. Furthermore, the value of the contact stress based on the cantilever beam model can be used to calculate an approximation theoretical solution. In summary, the proposed theoretical model provides a foundation for the design, improvement, and selection of radial metal seal under the known oilfield conditions.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Contact mechanical behaviors of radial metal seal for the interval control valve in intelligent well: Modeling and theoretical study

Yang

Zhu

et al. 2019

Energy Science & Engineering

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New Wireline Formation Tester Development Makes Sampling and Pressure Testing Possible in Extra-Heavy Oils in Mexico

Mosqueda

Aguilar

Herrera

et al. 2012

SPE Annual Technical Conference and Exhibition

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A Low-Cost Completion Technique for Simultaneous Steam and CO2 Injection in Heavy Oil Reservoirs

Teodoriu

Márquez

Ichim

2016

Day 2 Thu, October 20, 2016

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Steam injection is a known Enhanced Oil Recovery technique with application in heavy oil exploitation. The process is generating a rather high amount of carbon dioxide (CO2) that according to the current climate regulatory initiatives should be reduced. CO2 injection to enhance heavy oil production is a known technique for such reservoirs. The technology of capturing CO2 has evolved today up to a point where it can also be applied to steam generators. This work starts with a comprehensive review of most recent steam generator developments and their possibility of subsequently capturing CO2. Co-generation concepts will also be investigated and their potential to generate steam and CO2 for heavy oil enhanced recovery will be evaluated. The thermal properties of CO2 are well known, and its critical state poses challenges in many injection applications. This low-cost completion is proposing a parallel injection of steam through tubing and CO2 through annular space. While injecting CO2 in a steam-heated well, the elevated temperature keeps the carbon dioxide gas away from its critical state. The gas will cool down the upper part of the well, especially the surface casing, avoiding cement damage and well integrity breaches. This paper describes an economical completion technique that replaces the expensive thermal packer with a new budget-friendly design. This novel setup allows free tubing expansion and protects casing against high temperature through continuous gas circulation in the annulus. It also enables the simultaneously injection of combustion gases from steam generators or other gas supply. In this manner, substantial CO2 credit could be saved by operators while cutting completion expenses and environmental hazards at the same time.

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Field Trials Using an All Metal Ring Seal Floating Packer

Cited by 3 publications

References 4 publications

Contact mechanical behaviors of radial metal seal for the interval control valve in intelligent well: Modeling and theoretical study

Contact mechanical behaviors of radial metal seal for the interval control valve in intelligent well: Modeling and theoretical study

New Wireline Formation Tester Development Makes Sampling and Pressure Testing Possible in Extra-Heavy Oils in Mexico

A Low-Cost Completion Technique for Simultaneous Steam and CO2 Injection in Heavy Oil Reservoirs

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