Determining Matrix Treatment Performance From Downhole Pressure And Temperature Distribution: A Model

Tardy, Philippe Michel Jacques; Chang, Frank; Qiu, Xiangdong

doi:10.2523/iptc-15118-ms

Cited by 15 publications

(1 citation statement)

References 12 publications

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“…Fiber-optic-based downhole temperature, pressure, strain, and acoustic sensors for petroleum industry application are currently available. [16][17][18][19][20] However, some of their inherent drawbacks need to be addressed when they are considered as an alternative to conventional electronic transducers. Robustness and longevity of the system are the major concerns.…”

Section: Introductionmentioning

confidence: 99%

Laboratory evaluation of distributed coaxial cable temperature sensors for application in CO₂ sequestration well characterization

Zhu

Cheng

et al. 2016

Greenhouse Gases

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Downhole monitoring plays a crucial part in a geological carbon dioxide (CO2) sequestration project, especially in providing early warnings of failure. However, most downhole monitoring technologies are often low in spatial resolution and time‐consuming, or expensive and have system longevity issues. To address this issue, a robust and cost‐effective distributed coaxial cable Fabry‐Perot interferometer‐based temperature sensor is proposed for real‐time downhole monitoring. The coaxial cable sensor (CCS) was made in house and tested using a high pressure high temperature (HPHT) testing apparatus to study the sensor accuracy, sensitivity, stability, and crosstalk effect in simulated downhole conditions. The laboratory test results indicate that the sensor can work under simulated downhole conditions of pressures up to 1000 psia and temperatures up to 110°C. At 1 ATM, the sensor has an accuracy of about 1%. At 1000 psia, the hysteresis phenomenon is observed, but it is reduced and tends to stabilize after repeated heating and cooling treatments. The pressure crosstalk effect was observed on the flexible cable sensor and minimized on the rigid cable sensor. The temperature and pressure range of the distributed CCS allows long‐term in situ monitoring for a well depth up to 2500 feet, which would prove of great value in detecting temperature change associated with wellbore leakage that may lead to groundwater contamination. © 2016 Society of Chemical Industry and John Wiley & Sons, Ltd

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Section: Introductionmentioning

confidence: 99%

Laboratory evaluation of distributed coaxial cable temperature sensors for application in CO₂ sequestration well characterization

Zhu

Cheng

et al. 2016

Greenhouse Gases

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Inversion of Distributed-Temperature-Sensing Logs To Measure Zonal Coverage During and After Wellbore Treatments With Coiled Tubing

Tardy

Ramondenc

Weng

et al. 2012

SPE Production &Amp; Operations

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Distributed temperature sensing (DTS) is a fiber-optic technology that provides continuous temperature profiles along the length of a well. When placing the fiber inside a coiled tubing (CT), one can monitor the temperature evolution while pumping as well as during a shut-in period. This evolution, in turn, yields some indications about the fluid-placement performance or zonal coverage. So far, interpretation of such DTS traces has been mostly qualitative. The work presented here demonstrates how DTS data can be used, coupled with an inversion algorithm and a forward model of fluid injection into a reservoir, to quantify the intake profile of treatment fluid along the wellbore. Recent field cases of matrix acidizing treatments in carbonate reservoirs are analyzed to illustrate the workflow and how it may yield valuable information. from Universidad de los Andes, Colombia.Kaveh Yekta-Ganjeh, P. Eng., SPE, is a senior technical engineer in coiled-tubing services at Schlumberger in Calgary. He has 10 years of experience in oilfield industry, all in coiled-tubing services. Yekta-Ganjeh joined Schlumberger in 2001 and has held different positions in field operation and technical support. He has worked in Iran, UAE, Libya, and Canada in land and offshore operations. Yekta-Ganjeh holds a BS degree in mechanical engineering from Sharif University of Technology, Iran.

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A New Methodology for Stimulation of a High-Water-Cut Horizontal Oil Well through the Combination of a Smart Chemical System with Real-Time Temperature Sensing: A Case Study of South Umm Gudair Field, PZ Kuwait

Al-Najim

Zahedi²,

Al-Khonaini

et al. 2012

SPE/ICoTA Coiled Tubing &Amp; Well Intervention Conference and Exhibition

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This paper presents a case study of a matrix acidizing treatment in a well located at the neutral zone between Kuwait and Saudi Arabia, whereby the combination of a "smart fluid" in a stimulation treatment pumped through a Coiled-Tubing (CT) with the real time distributed temperature sensing (DTS) technology helped improve the real-time decision process of fluid placement, temporary plugging placement, and treatment efficiency evaluation. As part of the analysis process and to facilitate the onsite decision-making process, a temperature inversion technique was also used to translate the actual temperature profiles into fluid invasion profiles across the horizontal open-hole section of the well. Additionally, a full scale acid placement and thermal modeling is proposed in order to perform an in-depth post-treatment evaluation. The bottom hole data evaluation further confirmed the benefits of using a smart fluid. Following the treatment, the well produced at a rate of 1500 bbl/day with 17% water cut, which is well below the field average of ~50%.

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Determining Matrix Treatment Performance From Downhole Pressure And Temperature Distribution: A Model

Cited by 15 publications

References 12 publications

Laboratory evaluation of distributed coaxial cable temperature sensors for application in CO₂ sequestration well characterization

Laboratory evaluation of distributed coaxial cable temperature sensors for application in CO₂ sequestration well characterization

Inversion of Distributed-Temperature-Sensing Logs To Measure Zonal Coverage During and After Wellbore Treatments With Coiled Tubing

A New Methodology for Stimulation of a High-Water-Cut Horizontal Oil Well through the Combination of a Smart Chemical System with Real-Time Temperature Sensing: A Case Study of South Umm Gudair Field, PZ Kuwait

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Determining Matrix Treatment Performance From Downhole Pressure And Temperature Distribution: A Model

Cited by 15 publications

References 12 publications

Laboratory evaluation of distributed coaxial cable temperature sensors for application in CO2 sequestration well characterization

Laboratory evaluation of distributed coaxial cable temperature sensors for application in CO2 sequestration well characterization

Inversion of Distributed-Temperature-Sensing Logs To Measure Zonal Coverage During and After Wellbore Treatments With Coiled Tubing

A New Methodology for Stimulation of a High-Water-Cut Horizontal Oil Well through the Combination of a Smart Chemical System with Real-Time Temperature Sensing: A Case Study of South Umm Gudair Field, PZ Kuwait

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Laboratory evaluation of distributed coaxial cable temperature sensors for application in CO₂ sequestration well characterization

Laboratory evaluation of distributed coaxial cable temperature sensors for application in CO₂ sequestration well characterization