Design and Analysis of a New Profile Control Tool: Swirling Autonomous Inflow-Control Device

Yang, Mingjun; Wu, Xinyuan; Yue, Yingchun; Zhang, Ying; Chen, Ye; Tang, Yufeng

doi:10.2118/199364-pa

Cited by 3 publications

(1 citation statement)

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“…Autonomous inflow control devices have been offered which claim to selectively allow hydrocarbon entry while reducing or eliminating water entry into the pipe (Yang et al 2020). These claims appear misleading or dubious.…”

Section: Deviated or Horizontal Wellsmentioning

confidence: 99%

Water shutoff and conformance improvement: an introduction

2021

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This paper provides an introduction to the topic of water shutoff and conformance improvement. After indicating the volumes of water produced during oilfield operations, a strategy is provided for attacking excess water production problems. Problem types are categorized, typical methods of problem diagnosis are mentioned, and the range of solutions is introduced for each problem type. In the third section of the paper, the concept of disproportionate permeability reduction is introduced—where polymers and gels may reduce permeability to water more than to oil or gas. When and where this property is of value is discussed. The fourth section describes the properties of formed gels as they extrude through fractures and how those properties can be of value when treating conformance problems caused by fractures. Section 5 covers the efficiency with which gels block fractures after gel placement—especially, the impact of fluids injected subsequent to the gel treatment.

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Section: Deviated or Horizontal Wellsmentioning

confidence: 99%

Water shutoff and conformance improvement: an introduction

2021

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An Innovative Solution for Production Enhancement Using Expandable Casing Patch Technology

Sharma

Al-Mulhim

Ahmed

et al. 2021

SPE/IATMI Asia Pacific Oil &Amp; Gas Conference and Exhibition

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E&P operators are looking at innovative solutions to control water production in horizontal oil well producers, to maximize their assets’ value. The operators are putting greater emphasis on maximizing oil production from the existing assets instead of performing sidetrack or drilling new wells. Completing wells with equalizer completions; inflow control device (ICD) separated by openhole packers is one such solution. Two kinds of equalizers are used for entry of wellbore fluids; Active ICDs and Passive ICDs. For wells completed with Active ICDs, a shifting tool can be used to close the water producing ICDs. However, for wells completed with passive ICDs, plugs with cement can be used, which will isolate the section below, leaving much of the oil behind. For wells in which the heel or the middle section starts to produce water, there was no solution, but to live with it or re-sidetrack the well. Recently, a new technology of expandable steel technology has been selected, and specifically customized for ICDs isolation purposes. The patch is corrosion resistant alloy (CRA) material, which was selected to cope with the harsh corrosive environment. Pipe geometry had to be adjusted to enable "Patch thru Patch" capacity. Despite the tight restrictions of the well, the use of this technology allowed to keep enough clearance after installation to pass another Patch thru later on, if required. Prior to performing the isolation of the ICD, production logs of the horizontal section were carried out to analyze the production and locate precisely the high-water producing zones. Three (3) Patches were successfully deployed rigless using smart coiled tubing. The real time monitoring enabled accurate positioning and smooth down hole pressure control. Post patch installation, wellbore path remained clear, enabling production from the bottom zone. The well performance improved with substantial reduction in water production and consequent incremental increase in the oil production. Isolating the dominating water contributing ICDs, contributed to increase the oil contribution from the other ICDs. This was confirmed by another production log performed post patch installation. This was the first installation of Xpandable Steel Patch across ICD's worldwide. This paper will highlight the technology and its application, solution selection process and the operational deployment of the Xpandable Steel Patch including real-time monitoring capabilities of instrumented Coil tubing (CT) which can be leveraged to accurately install the patches.

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Advanced Completion Optimization ACO: A Comprehensive Workflow for Flow Control Devices

Elfeel

Goh

Biniwale

2021

Day 1 Tue, March 23, 2021

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There is a growing interest in downhole flow control devices (FCD) as they can be used to counter the effects of reservoir heterogeneity and improve hydrocarbon recovery. The variety of FCD types, sizes, and specifications makes it challenging to select the right device, providing an optimal investment return. Reservoir engineers play an essential role in identifying and evaluating the possible options based on numerical simulation models. This paper utilizes a transient numerical optimizer, designed for FCD with active controls, as a generic tool for lower completion optimization, including passive and autonomous FCD. The workflow consists of five steps. The first step is to determine a practical number of completion zones in a well, given the reservoir heterogeneity and completion string considerations. The second step is to explore the potential gains of downhole control without accounting for device-specific limitations. Here, we integrate a local optimization method to run several simulations with reactive and proactive strategies. In the third step, we contrast the local optimization simulations results to determine the suitable family of FCD: passive, autonomous or active. In step four, we ensure the selected FCD family is correctly modelled in reservoir simulation, particularly for autonomous devices, based on a recently published method to calculate equipment specific flow coefficients. Finally, optimization runs are performed using the selected FCD family and specific coefficients. The workflow is demonstrated on a synthetic carbonate sector model with a ~2,000 m horizontal well. It can be shown that analyses of the local optimization results provide quick guidelines to screen and select suitable lower completion equipment for the well and reservoir. Furthermore, the local optimization results can be used to design the selected lower completion string. The suggested workflow is the first of its kind in that it caters to all FCD families. The workflow uses an efficient local optimization method in a next-generation reservoir simulator. The efficiency gains from using the optimizer allows the decision-making time required for FCD evaluation to be an order of magnitude less than the logging and completion operation timeframe. Hence, the workflow enables efficient real-time design, planning and optimization of FCD.

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Design and Analysis of a New Profile Control Tool: Swirling Autonomous Inflow-Control Device

Cited by 3 publications

References 20 publications

Water shutoff and conformance improvement: an introduction

Water shutoff and conformance improvement: an introduction

An Innovative Solution for Production Enhancement Using Expandable Casing Patch Technology

Advanced Completion Optimization ACO: A Comprehensive Workflow for Flow Control Devices

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