Integrated Cementing Hydraulics Design for Massive Salt Zones

Martins, André Leibsohn; Aranha, Pedro Esteves; Folsta, Mauricio Gimenes; Simão, Cristina Aiex; Batalha, Nathalia; Pinto, Gustavo Henrique Vieira Pereira

doi:10.2118/151031-ms

Cited by 3 publications

(1 citation statement)

References 32 publications

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“…However, the extreme service conditions can cause the sheath to crush or crack, leading to a lack of zonal isolation. This can ultimately result in contamination of the crude oil or even catastrophic accidents if gas escapes from the well (Martins et al 2012). A scheme showing the different components of an oil well is presented in Fig.…”

Section: Introductionmentioning

confidence: 99%

Nanoparticle-based Magnetic Induced Heating for Oil Well Cement Slurries: Experimental Study and Modelling Development

Silva

Rita

Maranhão³

et al. 2023

ACT

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This paper presents an experimental campaign and a numerical model that describe a potential application of magnetic nanoparticles (MNP) in oil well cementing pastes. MNP, when subjected to an oscillating magnetic field, can generate a heating effect, which accelerates the cement hydration reaction through thermal activation. This, in turn, reduces the downtime during expensive oil well cementing operations. An experimental campaign was conducted to verify the heating potential of MNP in cement pastes. The obtained results were used to calibrate and validate a numerical model implemented in an optimized computer code, which takes into account the thermo-chemical coupling of the hydration reaction. The early application of the numerical model successfully reproduced the thermal behavior of MNP-blended cement pastes exposed to inductive heating. Furthermore, it has the potential to be extended for simulating the behavior of cement pastes in oil wells during the early ages when the effects of hydration are crucial to consider.

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Section: Introductionmentioning

confidence: 99%

Nanoparticle-based Magnetic Induced Heating for Oil Well Cement Slurries: Experimental Study and Modelling Development

Silva

Rita

Maranhão³

et al. 2023

ACT

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Influence of electrolytes on the performance of a graft copolymer used as fluid loss additive in oil well cement

Salami

Plank

2016

Journal of Petroleum Science and Engineering

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Engineered Flexible Expandable High-Density Cement System in Loss Prone High-Pressure Salt Section in Northern UAE

Silva¹,

Schebath²,

Phyoe

et al. 2018

Day 3 Wed, November 14, 2018

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The objective of a cementing operation is to achieve a long-term well integrity by providing good zonal isolation. In cementing operations in the northern part of the United Arab Emirates (UAE), thick salt formations, potential high-pressure zones, lost circulation zones and planned high pressure casing test added to the complexity of the cement job. The presence of 3,000-ft or thicker salt formation posed a key challenge. The chemically reactive salts in the salt sections affects slurry placement and hydration. Salt from formation can be incorporated into cement slurry while placement and adversely affects the fluid loss, rheology, and setting characteristics. Thus, first, the cement system needed to be designed to be tolerant of such effects. Also, high pore pressure was expected while drilling so the planned mud density varied from 15.5 ppg to 18 ppg. The highest cement slurry density of 19.2 ppg was required to cover this wide range while maintaining the density hierarchy requirement for optimum placement. Additionally, a high-pressure test planned after the casing was set resulted in additional stresses, which also posed substantial risks to the integrity of the cement sheath. A methodical approach was applied by first following the standard cementing practices and then categorizing the key factors in overcoming field specific challenges. Stress analysis using advanced software helped to identify the needed mechanical properties for the flexible and expanding cement system to remain intact under extreme pressure changes. After the in-depth lab testing, a fit for purpose compatible for placement against salt formation cement system was introduced. The use of engineered lost circulation fibers in the cement system would help to mitigate the losses during the cement job. The engineered high-density salt compatible flexible expandable cement system was designed to provide the desirable outcome to the complex challenges. Comprehensive lab testing along advanced zonal isolation software helped in successful first-time execution. The first-time application of this salt compatible flexible and expanding cement system has proven to be a robust solution for the cementation and could be the basis of design for all future wells industry-wide.

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Integrated Cementing Hydraulics Design for Massive Salt Zones

Cited by 3 publications

References 32 publications

Nanoparticle-based Magnetic Induced Heating for Oil Well Cement Slurries: Experimental Study and Modelling Development

Nanoparticle-based Magnetic Induced Heating for Oil Well Cement Slurries: Experimental Study and Modelling Development

Influence of electrolytes on the performance of a graft copolymer used as fluid loss additive in oil well cement

Engineered Flexible Expandable High-Density Cement System in Loss Prone High-Pressure Salt Section in Northern UAE

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