Well Production Enhancement Results with Inflow Control Device (ICD) Completions in Horizontal Wells in Ecuador

Vela, Ivan; Viloria-gomez, Lumay A.; Caicedo, R.; Porturas, Francisco

doi:10.2118/143431-ms

Cited by 17 publications

(3 citation statements)

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“…Currently, various ICDs have been developed in the industry. , The ICDs use three types of mechanisms to generate an additional pressure drop: the restriction mechanism, , the friction mechanism, , and the incorporation of both mechanisms mentioned above. − Unfortunately, once water coning occurs, the ICD will promote water production, not restrict it.…”

Section: Introductionmentioning

confidence: 99%

Design and Performance of a Novel Autonomous Inflow Control Device

2017

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Due to geological complexity and the heel−toe effect, the production profiles of long horizontal wells are usually imbalanced, and as a result, premature water breakthrough is usually encountered. Once water breakthrough occurs, this phenomenon will reduce oil production. To maximize oil recovery, inflow-control devices (ICDs) are widely used to create a uniform inflow profile. To date, known ICDs cannot meet all the ideal requirements throughout the well's life. In this study, based on the combination of a successive restriction mechanism and water swelling rubber, a novel autonomous inflow control device is proposed. Then, the rules of oil−water two-phase flow through the novel design are studied by a numerical simulation based on optimized structural parameters, and the fluid property sensitivities are analyzed. Upon integration of the novel design into the test apparatus, flow tests are conducted. The influences of water content, inflow rate, and injection rate on the pressure drop are further analyzed to provide a guide to completion parameter optimization. The results demonstrate that the novel design has a simple structure. Its flow-resistance rating can be easily adjusted. Additionally, the design provides a significant oil and water resistance difference. The pressure-drop ratio of the water relative to oil can be up to 40. The design has a large crosssectional flow area, providing high plugging resistance and high erosion resistance. Moreover, the design is not sensitive to flow rate or oil properties and has a wide application range. Reservoir heterogeneity should be given more attention than the heel−toe effect when optimizing the completion parameters.

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Section: Introductionmentioning

confidence: 99%

Design and Performance of a Novel Autonomous Inflow Control Device

2017

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“…They use restriction mechanism (the nozzle-based type [6] , and the orifice type [7]) , friction mechanism (the labyrinth type [8] , and the helical channel type [9] ) or cooperating both the mechanisms (the hybrid type [10][11] , and the tube type [12] ) to generate the similar pressure drop. These ICDs can be divided into passive inflow control devices (PICD) and autonomous inflow control devices (AICD) according to whether their flow resistance ratings (FRR) are constant.…”

Section: Introductionmentioning

confidence: 99%

A Novel Autonomous Inflow Control Device: Design, Stracture Optimization, and Fluid Sensitivity Analysis

Wang

Zeng

2014

All Days

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In long horizontal wells, early water or gas may breakthrough into the wellbore due to the imbalanced production profile caused by the heel-toe effect, reservoir anisotropic, reservoir heterogeneity or fractureexisting. Once coning occurs, oil production may severely decrease due to the limited flow contribution from the non-coning regions. Inflow control devices (ICD) are installed to maintain the flow across production zones uniformly by creating an additional pressure differential which cancels out the imbalanced production profile. This will lower startup production, however, unwanted fluids from breaking through are significant delayed, and total oil production is maximized. Unfortunately, once water/gas does break through, they will take over the well, significantly reducing oil production.In this paper, a novel autonomous inflow control device (AICD) design is proposed based on the combination of the Y-shaped fluid director and the disk-shaped restrictor. The proportion of flow through different paths of the fluid director will be adjusted automatically according to its fluid property and the stracture parameters, thus enter the restrictor differently and result in different flow resistances. The stracture parameters are then optimized, which enables the well to continue producing oil for a longer time while limiting water. And on the basic of optimized results, the influences of fluid with varying properties (flow rate, water content, and oil viscosity) are further discussed. The results show that the novel design has good performances during every phase of a well's life: high plugging resistance at startup, high erosion-resistant during peak production, continuous inflow control and low viscosity sensitivity during declining, and significantly flow resistance increase at eventual water onset.

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“…The PICDs are usually installed to maintain the flow across production zones uniformly by generating an additional pressure drop. They use restriction mechanism (the nozzle-based type [6] , and the orifice type [7]) , friction mechanism (the labyrinth type [8] , and the helical channel type [9] ) or cooperating both the mechanisms (the hybrid type [10][11] ,and the tube type [12] ) to generate the similar pressure drop. Their FRRs are fixed, and unfortunately, once water/gas does breakthrough, the low viscosity water/gas will take over the well, thus rendering the PICD useless and significantly decreasing the oil production.…”

Section: Introductionmentioning

confidence: 99%

A Novel Autonomous Inflow Control Device Design: Improvements to Hybrid ICD

Zeng

Wang

et al. 2014

All Days

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In long horizontal wells, early water or gas may breakthrough into the wellbore due to the imbalanced production profile caused by the heel-toe effect, reservoir anisotropic, reservoir heterogeneity or fractureexisting. Once coning occurs, oil production may severely decrease due to the limited flow contribution from the non-coning regions. Inflow control devices (ICD) are installed to maintain the flow across production zones uniformly by creating an additional pressure differential which cancels out the imbalanced production profile. This will lower startup production, however, unwanted fluids from breaking through are significant delayed, and total oil production is maximized. Unfortunately, once water/gas does break through, they will take over the well, significantly reducing oil production.In this paper, a novel autonomous inflow control device (AICD) design is proposed on the combination of hybrid ICD and water swelling rubber (WSR). The WSR installed in the slot will swell once water breakthrough occurs, and the swell increment will be adjusted automatically according to the water content, thus changing the minimum flow area and the flow resistance rating (FRR). This autonomous function enables the well to produce oil while restrict water. To highlight the excellent performance of the novel design, four other designs (nozzle-based, helical channel, tube-type, and hybrid) with a same FRR were compared, with structural parameter optimization, and fluid property sensitivities researched. The results show that the novel design has good performances during every phase of a well's life: high plugging resistance at startup, high erosion-resistant during peak production, continuous inflow control and low viscosity sensitivity during declining, and significantly flow resistance increase at eventual water onset.

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Well Production Enhancement Results with Inflow Control Device (ICD) Completions in Horizontal Wells in Ecuador

Cited by 17 publications

References 0 publications

Design and Performance of a Novel Autonomous Inflow Control Device

Design and Performance of a Novel Autonomous Inflow Control Device

A Novel Autonomous Inflow Control Device: Design, Stracture Optimization, and Fluid Sensitivity Analysis

A Novel Autonomous Inflow Control Device Design: Improvements to Hybrid ICD

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