Real-time Fiber-optic Integrated System Used For Maximizing Coiled Tubing Wellbore Cleanouts in the Latin American Region

Webb, Earl Don; Howard, Robert Glenn; Garcia, Alexis; Gleaves, Jorge

doi:10.2118/169218-ms

Cited by 12 publications

(1 citation statement)

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“…Among those, the most advanced ones employ a 1/8-in. insulated electrical conductor (Taggart et al 2010(Taggart et al , 2011Oberascher et al 2012;Livescu et al 2015) or an optical fiber (Aviles et al 2011;Garcia et al 2011;Ramondenc and Baez 2013;Ahmed et al 2014a,b;Gorgi et al 2014;Ramondenc et al 2014;Webb et al 2014;Medina et al 2015). The BHAs for both systems were designed to meet similar requirements.…”

Section: Introductionmentioning

confidence: 99%

2 1/8-in. Intelligent Coiled Tubing System Improves Operational Efficiency

Livescu

Blanco

Vacik

2015

Day 4 Wed, December 09, 2015

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A recently developed 2 1 ⁄8-in. intelligent coiled tubing (ICT) system combines real-time downhole data monitoring with the capability to simultaneously provide downhole power, significantly improving operational efficiency and accelerating well recovery in all types of CT operations. From milling, stimulation, and well cleanouts to gas lifting, camera services, logging and perforating operations, this novel system can provide accurate, real-time downhole monitoring of high-resolution depth correlation, differential pressure, and temperature data.The real-time ICT system consists of a non-intrusive electrical conductor wire, surface hardware and software, and a versatile 2 1 ⁄8-in. bottomhole assembly (BHA) that incorporates the conductor release assembly, casing collar locator (CCL), pressure, and temperature sensor package, and BHA release function. Switching between different applications is as simple as changing out the BHA, which reduces the need to rig-up and rig-down and leads to operational time and cost savings. The main advantage of this system is that it eliminates the downhole uncertainties. For instance, using the real-time downhole depth, pressure, and temperature data, the CT field crew can react to changing conditions, make decisions based on dynamic downhole events, and eliminate missed or wasted runs.Several case studies have been recently presented in an accompanying paper (SPE-174850). They involved an ICT conveyed camera operation in North America; a complex cement milling, cleanout, and perforating operation in Netherlands; an inflatable plugs setting operation in Brazil; a complex drifting, logging, jetting, zonal isolation, and scale removal operation in Brazil; and a matrix acidizing operation in Brazil. In this paper, several other representative cases are presented. First, an ICT system was used in a newly drilled well in Middle East to cut a stuck drill pipe. Second, an operation for creating a thief zone and matrix acidizing was performed in a deepwater well in Brazil. Third, a complex cleanout, milling, selective perforating, and acid stimulating operation was performed in a horizontal producer in North Sea.The paper reviews the real-time ICT system and discusses the data acquired during these field operations. The system performance and benefits confirmed during the three operations are presented. These findings outline the versatility of the 2 1 ⁄8-in. ICT system, the predictability of successful operations resulting from using this system, and the cost and time savings for operators.

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Section: Introductionmentioning

confidence: 99%

2 1/8-in. Intelligent Coiled Tubing System Improves Operational Efficiency

Livescu

Blanco

Vacik

2015

Day 4 Wed, December 09, 2015

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Adapting optical technology to dynamic energy prices: fiber-optic sensing in the contemporary oil field

2017

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Wellbore Monitoring in Carbonate Reservoirs: Value of DTS in Acid Stimulation through Coiled Tubing

Gorgi

Medina

Gleaves

et al. 2014

Abu Dhabi International Petroleum Exhibition and Conference

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In acid matrix stimulation, the correct placement of the injected fluids is essential. Several diversion and placement techniques are often applied to obtain the desired fluid placement (Glasbergen and Yeager 2010). Distributed temperature sensing (DTS) and coiled tubing (CT) pressure, temperature, and collar locator tools were used to monitor the fluid placement and effectiveness of the diversion process.Real-time monitoring was required as part of the overall reservoir management strategy for the Tecominoacán 705 well. The CT service provided ideal conveyance for DTS in this highly deviated and depleted well. In a distributed-temperature survey, the fiber optic served as the sensing element, and combined with CT conveyance and pressure/temperature/collar locator tools, enabled continuous wellbore temperature monitoring across the entire horizontal while pumping a stimulation treatment through an annular space consisting of acids and diverters. It also allowed real-time decision making based on the actual measured injection profiles.This well was highly deviated in a carbonate reservoir, completed with 675 m of 4 1/2-in., 12.7 lb/ft liner and swell packers, with 150 m of tubing conveyed perforating (TCP) perforations distributed in six intervals. The DTS combined with CT tools provided accurate monitoring of the stimulation treatment, which was pumped through the annulus between the production tubing and CT. With the DTS service, it was observed that the stimulation fluids were injected only at the heel of the well, which was acting as a thief zone as a result of the presence of highly conductive natural fractures. Several stages of diverters were pumped to attempt to divert acid from the heel to the tip of the well, without success. The decision to cancel the final acid stages saved USD thousands in fluid costs. Mixing the acid on-the-fly using special blending equipment allowed the optimization of resources based on real-time decisions influenced by the DTS injection analysis.

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Real-time Fiber-optic Integrated System Used For Maximizing Coiled Tubing Wellbore Cleanouts in the Latin American Region

Cited by 12 publications

References 0 publications

2 1/8-in. Intelligent Coiled Tubing System Improves Operational Efficiency

2 1/8-in. Intelligent Coiled Tubing System Improves Operational Efficiency

Adapting optical technology to dynamic energy prices: fiber-optic sensing in the contemporary oil field

Wellbore Monitoring in Carbonate Reservoirs: Value of DTS in Acid Stimulation through Coiled Tubing

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