A Novel Approach to Wireline Debris Removal

Gourmelon, Pierre-Olivier; Wiesenborn, Kyle; Chochua, Gocha

doi:10.2118/194279-ms

Day 1 Tue, March 26, 2019 2019

DOI: 10.2118/194279-ms

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A Novel Approach to Wireline Debris Removal

Pierre-Olivier Gourmelon

Kyle Wiesenborn

Gocha Chochua

Abstract: A new type of wireline-powered debris removal system that efficiently captures and retains a wide variety of wellbore debris types is presented. The system's unique benefits and performance are demonstrated through modeling and testing in controlled conditions. Wireline-powered debris removal technology uses localized fluid circulation generated downhole to vacuum debris into bailers for capture. Challenges with conventional systems are related to the ability to continuously mobilize and separat… Show more

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2024

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Cited by 3 publications

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Effective Wireline Conveyed Solutions Replacing Traditional Coiled Tubing Operations

Duthie,

Harthi,

Afif

et al. 2024

Day 1 Tue, March 19, 2024

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Obstructions in a wellbore are often a costly and challenging problem to resolve. Obstructions can appear in many different forms such as scale, debris, sand, stuck plugs, etc, and may restrict production or prevent well intervention for all logging operations. Coiled tubing or chemical treatment are traditional methods to clear any obstructions, although these solutions may not always be suitable or the most efficient. Real time wireline deployed tools provide a cost-effective and efficient alternative. The wireline deployed debris removal and milling tools are run in combination with a tractoring system. The tractor grips the sides of the tubulars to avoid any rotation and also provides forward force to drive the system ahead. The debris removal utilizes a powerful downhole pump to vacuum the wellbore debris and the debris is trapped in a gravity driven filtration system during the localized circulation of the fluids. Where the obstruction is hard, such as scale or stuck plug, the wireline milling tool is selected. Selected wells requiring routine thermal decay and carbon oxygen logging to monitor hydrocarbon and water saturations may encounter some obstruction restricting access to the wellbore. Coiled tubing with high pressure jetting is successful in clearing the wellbore but is costly and requires a large footprint. Chemical solutions are not used to avoid interfering with any saturation logging. The wireline debris removal tool is run first, the maximum sized tool is run to remove any loose materials in the tubing. The real time capability allows for optimization of the tool for efficient collection and also detects if the collection chamber is full. The pump can also be used in jetting mode to disturb settled debris or free the toolstring if buried. Depending on well conditions, a second run is made with the milling tool to remove any hard materials. The tractor and milling tool are fully synchronized to automatically provide the driving force forward and grip the tubing to avoid tool rotation when the bit is milling the obstruction. Tool performance is monitored in real time and dynamically controlled to optimize bit speed and weight on bit, this also features an autonomous anti-stalling system.

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Effective Wireline Conveyed Solutions Replacing Traditional Coiled Tubing Operations

Duthie,

Harthi,

Afif

et al. 2024

Day 1 Tue, March 19, 2024

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Cement and Debris Milling by Wire. Innovative Approach to Remove Hard Debris from Wellbore

Selamat,

Hassim,

Ghazali

et al. 2024

SPE/IADC Asia Pacific Drilling Technology Conference and Exhibition

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Small platforms with a limited deck space is always presenting a new set of challenges for well re-entry especially for Wellbore Clean Out (WBCO) for debris management. The same issues faced in the PTTEP Sarawak well operation where field with more than 10 years of production where sand, scale etc is part of the main challenges in ensuring production sustainability from the wells. Well A was completed back in June 2019 as gas producer with 3-1/2" cemented monobore completion with 74 deg deviation and long tangent section. Post completion, well was having difficulties during re-entry for the initial offline perforation leaving the two bottom most sand interval temporarily left out for early production of the intermediate sand interval. During the attempt in getting into the target sand interval some debris collected shown some leftover soft cement debris settlement. After several years of production of the intermediate sand intervals, the production performance is showing sign of depletion with water loading thus requiring the access to the last two bottom reservoir. In view of debris and cement accumulation shallower than the target perforated interval, there is requirement to clean the HUD to bottom of interest depth. Due to the limitation of platform deck space, there were difficulties to deploy coiled tubing for this well thus electric line with tractoring devices was selected to convey milling motor, collection chamber and mill bit to remove the debris from the wellbore. The biggest challenges were to remove the metal debris settlement from previous perforation as it imposes risk of tools stuck during cement milling and WBCO. The job was successfully executed with total cleanout interval of 150 m at negligible amount of Non-Productive Time (NPT). This paper will describe overall job design from the planning phase, until the job execution phase which covers specific and unique procedure development associated to effort to eliminate the risk of tools stuck due to perforation metal debris settlement in the rathole. Detailed lessons learnt from the operation were captured for future similar operation in the field.

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Embracing the Plug and Abandonment Challenge in Deepwater Malaysia

Samuel,

Lee,

Selamat

et al. 2024

SPE/IADC Asia Pacific Drilling Technology Conference and Exhibition

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As oil and gas fields near the end of their productive life, the focus shifts towards decommissioning facilities and ensuring permanent well abandonment. The primary objective of permanent abandonment (P&A) is to securely isolate potential flow of hydrocarbon sources, with no intention of resuming well activities. Operators face numerous challenges in fulfilling this objective, particularly as the wellbore conditions towards the end of a well's life introduce many uncertainties. Issues such as aging facilities, reduced internal diameters due to corrosion and previous sand production, derated equipment tensile strength, and deteriorated well barriers significantly complicate the P&A operations. Moreover, the industry has witnessed stringent regulations for well P&A over the past few years, amplifying the cost of regulatory-compliant P&A execution. Another dimension of the P&A complexity is the growing competition for resources and qualified personnel between the worldwide growing P&A scopes and the continuous wells development programs. With all these concerns, selecting the appropriate P&A techniques and implementing contingencies to ensure uninterrupted progress while performing a P&A operation is crucial. PTTEP Malaysia has deepwater wells as part of the existing asset portfolio, and some of these wells near the end of their life cycle, the challenge of devising and executing an efficient P&A program for a deepwater environment has been undertaken. This paper aims to delve into the intricacies of designing a deepwater P&A program, exploring potential uncertainties, and outlining necessary contingencies for a successful permanent abandonment. The paper also shed light on the operational strategies employed by PTTEP Malaysia during the execution of the first deepwater well P&A in Sabah waters. This includes discussions on tubing intervention techniques, validation of cement bonds, characterization of behind-casing fluids, management of fluid compatibility, and the establishment of well barriers in alignment with local and international regulations. Furthermore, it will analyze lessons learned and identify areas for improvement to foster continuous learning for future guidance.

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A Novel Approach to Wireline Debris Removal

Cited by 3 publications

References 8 publications

Effective Wireline Conveyed Solutions Replacing Traditional Coiled Tubing Operations

Effective Wireline Conveyed Solutions Replacing Traditional Coiled Tubing Operations

Cement and Debris Milling by Wire. Innovative Approach to Remove Hard Debris from Wellbore

Embracing the Plug and Abandonment Challenge in Deepwater Malaysia

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