Combating Gas Migration in the Michigan Basin

Bour, Daniel; Wilkinson, James G.

doi:10.2118/19324-pa

Cited by 10 publications

(5 citation statements)

References 4 publications

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“…rapid gel strength development coupled with a short transition-toset time are the mechanisms controlling gas invasion. 4 Latex cement blends have been used extensively to improve cement bonding and control gas migration. Those latexes most commonly used in construction mortars and oil well cements include polyvinyl alcohol (PVA), polyvinyl acetate, and styrene butadiene (SBR) copolymers.…”

Section: Discussion and Resultsmentioning

confidence: 99%

New Latex, Expanding Thixotropic Cement Systems Improve Job Performance and Reduce Costs

Jones¹,

Carpenter²

1991

SPE International Symposium on Oilfield Chemistry

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A unique cementing system is presented which provides improved cement bonding and zonal isolation in wells haVing bottom hole static temperatures (BRST) below 175 0 F. Selectively formulated with components common to the industry. this system is reliable and versatile.Latex cement additives are excellent bonding aids. gas migration preventers. matrix intensifiers and fluid loss additives.They improve cement's elasticity and resistance to corrosive flUids.Thixotropic. expanding cements excel in prOViding annular fill. zonal isolation and lost circulation control. Combining these two technologies into a single. efficient. low cost system has prOVided technical and economic properties which have had significant impact on cementing operations. This new cementing system is hereafter referred to as LXT for latex. e~anding. thixotropic cement.The properties engineered into the LXT system provide better primary and remedial cementing applications through: (1) reduced invasion of permeable. unconsolidated or "weak" zones by whole cement or cement filtrate. (2) prevention of gas or fluid migration in hydrating cement columns. (3) greater zonal isolation between differentially pressured intervals separated by thin. shale barriers. and (4) rapid compressive strength development and minimal waiting-oncement (WOC) time. Laboratory studies and case histories are presented to show the merits of this cement system over conventional low water loss (LWL) systems. Numerous applications in East Texas. West Texas (Permian Basin) and on References and illustrations at end of paper. 125 the West Coast have resulted in marked improvements in job quality and success rates over prior cementing practices.

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Section: Discussion and Resultsmentioning

confidence: 99%

New Latex, Expanding Thixotropic Cement Systems Improve Job Performance and Reduce Costs

Jones¹,

Carpenter²

1991

SPE International Symposium on Oilfield Chemistry

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“…If a well 5. Sutton, D. L. and Ravl, R. M.: 'New Method for Determining Downhole Properties that Affect Gas Migration and Annular sealing: paper SPE 19520, presented at the 64th Annual Technical Conference and Exhibition held In san Antonio, Texas (OCtober [8][9][10][11]1989). Sykes, R. L. and Logan, J. L.: 'New Technology In Gas Migration Control,' paper SPE 16653, presented at the 62nd Annual Technical Conference and Exhibition held In Dallas, Texas (September 27-30, 1987 Based upon the case histories Investigated In this study, the following conclusions can be drawn.…”

Section: Practical Applicationsmentioning

confidence: 99%

Verification of Slurry Response Number Evaluation Method for Gas Migration Control

Harris¹,

Ravi²,

King³

et al. 1990

Proceedings of SPE Annual Technical Conference and Exhibition

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To date. the means of efficiently dealing with annular gas migration by way of cement slurry design has been unstructured in approach. The major tools still relied upon are past experiences and a basic knowledge of gas migration theory. Although an accepted procedure for determining a well's potential to flow is available} research has not been heavily conducted relating gas flow potential to a specific cement slurry performance required to achieve a predictable success.Instead. "types' of cements (low fluid loss. thixotropic. etc.) are recommended In relation to the degree of flow potential that may be encountered in a well.In response to this deficiency. a method was recently developed and published by Sutton and Ravi. 2 Labeled the Slurry Response Number. SRN. this engineering tool defines the capability of a specific cementing system to combat gas migration In a specific gas weil. It is the purpose of this paper to show -through several case histories -that this derived relationship does exist. and can be used to more efficiently design anti-gas migration slurries.More specifically. the field cases observed in this study display a relationship between the Gas Flow Potential (GFP)a mathematical term Indicating the probability of gas flow given a set of cement job conditions -and the more recently developed SRN. As reported by Sutton and Ravi, the SRN Is a number attached to a specific cementing system (cement. spacer. and drilling fluid). based on fluid loss and static gel strength properties. that directly grades the capability of a cement slurry to prevent gas migration. This unique rating system can be used very effectively for relative comparisons between cement slurries or as confirmed through the case histories presented In this text. can serve as a guideline in choosing a cement slurry design for a specific weil with a calculated gas flow potential.References and lIiustratlons at end of paper.

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“…Thousands of research and millions of dollars spent on understanding the mechanics of fluid (especially gas) migration and developing solutions, it leads to a wide range of different strategies that describe different aspects of gas migration phenomena [3]. Experimental investigation and case studies to provide practical advice [4][5][6][7], technical solution development [8][9][10][11][12][13], application of different cement additives in cement slurry [14][15][16][17] and prediction technique for cement quality [18][19][20] are number of strategies studied by researchers. All the approaches and strategies utilized to minimize the gas migration risks primarily rely on targeting one or multiple gas migration conditions, including the control of annular pressure decline, reduction of gas entry space, and ultimately minimizing the migration path.…”

Section: Introductionmentioning

confidence: 99%

Reduction of fluid migration in well cement slurry using nanoparticles

Bayanak

Zarinabadi

Shahbazi

et al. 2020

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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One of the main problems during oil well completion and cementing operation is fluid migration through cement bulk or behind the cemented casing. Slurry composition and characteristic have been focused and improved in last decades to mitigate gas migration and, recently, aspects such as using nanotechnology have been investigated to amend the conditions. In this research, two moderate base slurries with 95 and 120 Pound per Cubic Feet (PCF) densities containing different percentages of nanosilica have been examined using a perfect test package. The results of Fluid Migration Analyzer (FMA) demonstrated that using correct percentage of nanosilica particles modified rheological behavior of the slurries and decreased fluid migration volume. Moreover, adding nanoparticles did not have any negative effects on any conventional parameters. However, static gel strength analyzer showed significant transient time reduction which is an important key in cement setting profile. Triaxial test results together with Mohr circles analyzing presented considerable progress in cement stability and compressive strength.

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Combating Gas Migration in the Michigan Basin

Cited by 10 publications

References 4 publications

New Latex, Expanding Thixotropic Cement Systems Improve Job Performance and Reduce Costs

New Latex, Expanding Thixotropic Cement Systems Improve Job Performance and Reduce Costs

Verification of Slurry Response Number Evaluation Method for Gas Migration Control

Reduction of fluid migration in well cement slurry using nanoparticles

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