Insights into Fracture Fluid Distribution and Fracture Geometry in Hydraulically Fractured Horizontal Wells through Thermal Simulations and Fiber Optics Distributed Temperature Sensing (FO - DTS) Measurements

Ghosh, Subhradip; Zhou, Dengen; App, Jeff; Jain, Lokendra; Hughes, Kelly; Emery, Daniel; Fu, Jianlin; Zhang, Ronglei

doi:10.15530/urtec-2020-3028

Cited by 5 publications

(3 citation statements)

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“…Given the particularity of the shale formation, it is necessary to consider two kinds of media in the reservoir: (1) large hydraulic fractures or identifiable fractures at the field scale (feet/meters, etc. ), which function as a channel to the wells from the matrix of shale; (2) Numerous micro-fractures, organic/inorganic pores, clay mineral dehydration micro-fractures / pores and matrix, together as a reservoir system with local nonuniform permeability which is very much enhanced by the process of the fracturing, also called enhanced permeability zone (EPZ) [11]. This part is the source area of oil and gas from microcosmic occurrence to fracture, which can be compared to the vast area on both sides of rivers, where the water is gathered in rivers.…”

Section: Insights To Unconventional Reservoir Fracturing: a Transdisc...mentioning

confidence: 99%

Insights to Unconventional Reservoir Fracturing: A Transdisciplinary Methodological Approach

2022

MCET

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A better understanding of hydraulic fracturing behavior is even more crucial in unconventional plays as more new-well or infill-well are drilled and completed nowadays. Having integrated different sources of information/data such as the general trend of hydraulic fracturing practices during the last 20 years, DFIT and fracturing simulation, core analysis data, outcrops, the Hydraulic Fracturing Test Site (HFTS), and fracturing monitoring in the wells or between wells such as pressure, tracers, DAS, DTS, DSS and so on. After synthesizing all kinds of data and information and applying multidisciplinary fusion ideas to the analysis, we proposed an innovative conceptual model of hydraulic fracturing coming along with some associated concepts; The transdisciplinary integration approach we used in this research follows all fundamental physics law and meticulously logical reasoning and analogy with crossing validation, the first principle thinking epistemologically because of the physics of unconventional fracturing is much more complicated than any single discipline can explain. More often than not, the solution coming from any discipline or data source is not a unique one. The cognition of the morphology or the called fracture pattern of hydraulic fracturing is critical, which is virtually the conceptual model of fracturing. The conceptual model can directly impact the fracturing design and the way to evaluate actual fracturing.Using the proposed conceptual model, Fracturing Impact Volume (FIV), one can better explain what fracturing has done for unconventional plays and why it worked. With the proposed conceptual model and tossing aside the fracture network as the fracturing goal, many current fracturing practices can be improved significantly, and the way of production can be revised. This is a significant concept shifting in the unconventional fracturing arena. It is certainly not an easy task, but this paper makes a compelling case. With the FIV model in mind, the perception of "the greater the pumping rate, the higher net frac pressure, the better the fracturing to be" becomes unnecessary or makes little sense. This paper will decode the shale oil/gas flow mechanisms and demonstrate a better way to fracture and produce unconventional resources like shale oil/gas.

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Section: Insights To Unconventional Reservoir Fracturing: a Transdisc...mentioning

confidence: 99%

Insights to Unconventional Reservoir Fracturing: A Transdisciplinary Methodological Approach

2022

MCET

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“…Combined with the fracture inflow, the fracture-inflow capacity can be estimated to identify and locate high-yield fractures, which provides a theoretical basis and physical experimental foundation for fracture diagnosis. Differences in both fracture-inflow capacity and geometry can lead to uneven distribution of the injected fluid, but such differences have little effect on the retort process, meaning that it is difficult to quantify the height and length of fractures from DTS retort data [40]. However, in 2020 Sun et al developed the thermally embedded discrete fracture model (TEDFM) and the integrated multiple data assimilation (ESMDA) inversion model, which can be used to deal with the thermal behavior of complex fracture networks in multiphase flows, and the hydraulic fracture half-length, height and inflow capacity can be obtained based on the matching of DTS data history [41].…”

Section: Application Of Dts In Hydraulic Fracturing Monitoringmentioning

confidence: 99%

Research Progress of Applying Distributed Fiber Optic Measurement Technology in Hydraulic Fracturing and Production Monitoring

Wang

2022

Energies

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With the exploration and development of unconventional oil and gas resources, downhole environmental monitoring and data-analysis technologies are becoming more and more important. Distributed fiber optic measurement technology, as a new monitoring technology to obtain accurate data, has a wide range of applications in hydraulic fracturing and production monitoring. It mainly includes: distributed fiber optic temperature sensors (DTSs) to monitor gas lift, identify in-flow fluid types, interpret flow profiles and monitor production enhancement operations; distributed fiber optic acoustic sensors (DASs) to monitor low frequency strain and microseismic and hydraulic fracturing operations; and distributed fiber optic stress sensors (DSSs) to characterize fractures in the near-well area, which have been well applied in the field. This paper describes the current application status of DASs and DSSs in hydraulic fracturing and production monitoring, respectively, from the principle of distributed fiber optic measurement technology. It also points out the limitations of these measurement technologies and the direction of future development. Distributed fiber optic measurement technology has been making technical breakthroughs in recent years, providing strong technical support for the development of unconventional oil and gas resources.

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“…Given the particularity of this shale formation, it is necessary to consider two kinds of media in the reservoir: (1) large hydraulic fractures or identifiable fractures at the field scale (feet/meters, etc. ), which function as a channel to the wells from the matrix of shale; (2) Numerous micro-fractures, organic/inorganic pores, clay mineral dehydration micro-fractures / pores and matrix, together as a reservoir system with local non-uniform permeability which is very much enhanced by the process of the fracturing, also called enhanced permeability zone (EPZ) 10. This pressurized EPZ is the crucial part of the whole shale oil/gas game besides the main fractures.…”

mentioning

confidence: 99%

Understanding Unconventional Reservoir Fracturing: A Transdisciplinary Methodological Approach

Z¹

2022

TPE

View full text Add to dashboard Cite

A better understanding of hydraulic fracturing behavior is even more crucial in unconventional plays as more new-well or infill-well are drilled and completed nowadays. Having integrated different sources of information/data such as the general trend of hydraulic fracturing practices during the last 20 years, DFIT and fracturing simulation, core analysis data, outcrops, the Hydraulic Fracturing Test Site (HFTS), and fracturing monitoring in the wells or between wells such as pressure, tracers, DAS, DTS, DSS and so on, we proposed an innovated conceptual model of hydraulic fracturing coming along with some associated concepts; The transdisciplinary integration approach we used in this research follows all fundamental physics law and meticulously logical reasoning and analogy with crossing validation, the first principle thinking epistemologically because of the physics of unconventional fracturing is much more complicated than any single discipline can explain. More often than not, the solution coming from any discipline or data source is not a unique one. The cognition of the morphology or the called fracture pattern of hydraulic fracturing is critical, which is virtually the conceptual model of fracturing. The conceptual model can directly impact the fracturing design and the way to evaluate actual fracturing. Using the proposed conceptual model, Fracturing Impact Volume (FIV), one can better explain what fracturing has done for unconventional plays and why it worked. With the proposed conceptual model and tossing aside the fracture network as the fracturing goal, many current fracturing practices can be improved significantly, and the way of production can be revised. This is a significant concept shifting in the unconventional fracturing arena, and it is certainly not an easy task, but this paper makes a compelling case. With the FIV model in mind, the perception of “the greater the pumping rate, the better the fracturing be” becomes unnecessary or makes little sense. This paper will decode the shale oil/gas flow mechanisms and demonstrate a better way to fracture and produce unconventional resources like shale oil/gas.

show abstract

Insights into Fracture Fluid Distribution and Fracture Geometry in Hydraulically Fractured Horizontal Wells through Thermal Simulations and Fiber Optics Distributed Temperature Sensing (FO - DTS) Measurements

Cited by 5 publications

References 0 publications

Insights to Unconventional Reservoir Fracturing: A Transdisciplinary Methodological Approach

Insights to Unconventional Reservoir Fracturing: A Transdisciplinary Methodological Approach

Research Progress of Applying Distributed Fiber Optic Measurement Technology in Hydraulic Fracturing and Production Monitoring

Understanding Unconventional Reservoir Fracturing: A Transdisciplinary Methodological Approach

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