A Case Study of Using Expandable Liner Hangers and Advanced Cementation Techniques for ERD Wells in India

Lobo, Monali; Singhal, Anupam; Lang, Clifford; Kolay, Jayabrata; Sinha, Pankaj; Kant, Ravi; Varghese, Roy; Doodraj, Sunil; Li, Jason; Kumar, Animesh; Kestwal, Ashish; Vaibhav, Ankit

doi:10.2118/174856-ms

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…e expandable liner hangers have been applied in more than 2,000 well-times overseas [16][17][18][19][20][21], which lower the potential down hole risk of the conventional liner hanger and the poor sealing quality of the overlapped section and improves the stability of the liner cementation system.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Mechanical Numerical Simulation and Expansion Experiment of Expandable Liner Hanger in Oil and Gas Completion

Chen

Xiao

Zhong

et al. 2020

Shock and Vibration

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The expansion experiment of the expansion liner hanger is a one-time failure process, so in order to save cost, the finite element technology needs to be used to simulate the expansion experiment. Obtaining the mechanical parameters of the expansion liner hanger can effectively optimize the size of the expansion liner hanger structure and guide the expansion completion. Firstly, main structure and principle of expandable liner hanger were introduced. Secondly, mechanical equilibrium equations of the expandable process were established to obtain pressure of the expandable fluid, and pressure of the expandable fluid is obtained. Thirdly, finite element (FE) simulation mechanical model of the expansion of the Ø244.5 mm × Ø177.8 mm expandable liner hanger was established to analyze the hang mechanism and the change rule of mechanical parameters during the expansion. The FE results have shown that radial displacement and residual stress of the inner wall of hanger varied in 5 cycles, and the expansion ratio of the expandable tube was 7.4% during the expansion. The expansion force did not change stably but gradually increased in stages. And the hydraulic pressure required for the expandable cone to continuously move down was 18 MPa. According to the contact stress generated on five rubber cylinders and the contact stress generated on five metal collars, the total hang force has been calculated, which exceeds 1000 kN and meets the design requirements. Lastly, the expansion test results have shown that expansion pressure was 19 MPa, and the expansion rate was 7.1%. The mechanical analysis results of the expandable liner hanger were in good agreement with the experiment results in this study, which provide important mechanical parameters for well completion with expandable liner hanger.

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Section: Introductionmentioning

confidence: 99%

Investigation of Mechanical Numerical Simulation and Expansion Experiment of Expandable Liner Hanger in Oil and Gas Completion

Chen

Xiao

Zhong

et al. 2020

Shock and Vibration

View full text Add to dashboard Cite

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A Decade of Challenges and Successes in Well Construction at Majnoon Oil Field – Southern Iraq

Dange,

Ridha,

Khudair

et al. 2024

Adipec

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Majnoon Oil Field is situated in the southern region of Iraq and stands as one of the world's most prolific oil reserves. Its strategic importance lies in its contribution to meeting global energy demands. However, this field, once a battlefield, presents unique challenges and remarkable successes. Over 70 wells have been meticulously drilled and brought into production. Upon completion, the operator faces the critical task of ensuring well integrity, which hinges on the cement's performance against each section of the casing under scrutiny. There are two types of well designs with an S-shaped trajectory: slim design and fat design (also known as big-bore). These well designs traverse fourteen separate hydrocarbon-bearing zones, primarily consisting of carbonate and clastic reservoirs with a host of challenges: Lost Circulation: Caverns, vugs, and large fractures,Cement Level Drop: In the intermediate section,Differential Sticking: The UER formation poses challenges,Washout Sections: Several washout sections impact the efficiency of cement displacement.Sustained Casing Pressure (SCP): Gas influx from the Ghar formationShale Instability: The Shiranish formation Considering the challenges, multiple solutions were engineered from the initial design of cement slurries to the completion of the cement job. To combat lost circulation, a thixotropic and acid-soluble cement was tailored to remedy losses and prevent accidental sidetracking. The fluid parameters of the cement were optimized to minimize fluid loss (less than 10cc) in high-permeable zones. Additionally, shale stabilizers and anti-shrinkage additives were included to enhance the cement properties. A novel spacer system was introduced, enhancing displacement efficiency, and providing competent isolation in the intermediate sections. Furthermore, the integration of an expandable liner hanger with carefully tuned fluid properties in the production sections, along with computer-aided simulation for analyzing torque and drag limits, ensures the highest cement coverage around the liner. This approach aims to achieve a competent cement sheath and meet the criteria for zonal isolation acceptance.

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A Case Study of Using Expandable Liner Hangers and Advanced Cementation Techniques for ERD Wells in India

Cited by 2 publications

References 3 publications

Investigation of Mechanical Numerical Simulation and Expansion Experiment of Expandable Liner Hanger in Oil and Gas Completion

Investigation of Mechanical Numerical Simulation and Expansion Experiment of Expandable Liner Hanger in Oil and Gas Completion

A Decade of Challenges and Successes in Well Construction at Majnoon Oil Field – Southern Iraq

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