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borehole ballooning

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Journal Article
Published: 01 February 2009
Vadose Zone Journal (2009) 8 (1): 250–257.
...M. Ozdemirtas; T. Babadagli; E. Kuru Abstract Borehole ballooning or breathing is commonly observed during drilling through fractured zones. It refers to small, partial, and continuous mud losses and significant rapid mud gains due to annular pressure fluctuations resulting from mud circulation...
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Effect of fracture surface roughness degree on borehole ballooning in the case of the exponential deformation law. Solid yellow line (Ref) represents the borehole ballooning event in a 16 by 16 grid size fracture with smooth surfaces. Other solid lines represent the same event in “d” set fractures with rough surfaces having Hurst exponents (H) of 0.4 (red), 0.6 (green), and 0.9 (blue). Dashed lines illustrate a mud gain or loss event in “a” set fractures, which differentiate from “d” set fractures by their random number generation seed (H = 0.4 [red], H = 0.6 [green], and H = 0.9 [blue]).
Published: 01 February 2009
F ig . 6. Effect of fracture surface roughness degree on borehole ballooning in the case of the exponential deformation law. Solid yellow line (Ref) represents the borehole ballooning event in a 16 by 16 grid size fracture with smooth surfaces. Other solid lines represent the same event in “d
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Effect of fracture grid size on the magnitude of borehole ballooning. All three lines represent the borehole ballooning phenomenon in a 16 by 16 grid size fracture, but depending on the grid sizes selected for the simulations each line has different x and y discretization steps as shown in the legend. Set “a” random number generation seed with a Hurst exponent of 0.4 was chosen by generating the data for the simulations, whereas for each simulation a different surface grid size was used (64 by 64 [green], 32 by 32 [yellow], and 16 by 16 [red]).
Published: 01 February 2009
F ig . 8. Effect of fracture grid size on the magnitude of borehole ballooning. All three lines represent the borehole ballooning phenomenon in a 16 by 16 grid size fracture, but depending on the grid sizes selected for the simulations each line has different x and y discretization steps
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Effect of fracture width on the magnitude of borehole ballooning. Solid lines demonstrate mud loss or gain events in fractures with smooth surfaces having a distance 1 and 2 mm across the entire system. Dashed lines show the simulation results of borehole ballooning occurring in a 16 by 16 grid size rough-walled fracture with an average aperture value of 1 and 2 mm for a Hurst exponent H = 0.4 (a0416).
Published: 01 February 2009
F ig . 9. Effect of fracture width on the magnitude of borehole ballooning. Solid lines demonstrate mud loss or gain events in fractures with smooth surfaces having a distance 1 and 2 mm across the entire system. Dashed lines show the simulation results of borehole ballooning occurring in a 16
Image
Effect of fracture surface roughness degree on mud loss and mud gain events in the case of the exponential deformation law. Solid yellow line (Ref) represents the borehole ballooning event in a 16 by 16 grid size fracture with smooth surfaces. Other solid lines represent the same event in “d” set fractures with rough surfaces having Hurst exponents (H) of 0.4 (red), 0.6 (green), and 0.9 (blue). Dashed lines illustrate a mud gain or loss event in “a” set fractures, which differentiate from “d” set fractures by their random number generation seed (H = 0.4 [red], H = 0.6 [green], and H = 0.9 [blue]).
Published: 01 February 2009
F ig . 7. Effect of fracture surface roughness degree on mud loss and mud gain events in the case of the exponential deformation law. Solid yellow line (Ref) represents the borehole ballooning event in a 16 by 16 grid size fracture with smooth surfaces. Other solid lines represent the same event
Journal Article
Published: 01 March 2024
Jour. Geol. Soc. India (2024) 100 (3): 311–319.
...) are found to have appreciable strike extent (>300 m) with steeply dipping (60°–75°) to vertical attitude. These conductors are interpreted to extend ≥75 m into the basement from the overlying sediments. The ballooned-up zones of low apparent resistivity especially in the sediments, associated with one...
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(a) Large‐scale map showing the locations of Piñon Flats Observatory (PY) array (triangle), the 2016 Mw 5.2 Borrego Springs earthquake (BSE, star), and the buoy sensor 46086 (filled circle). (b) The PY array layout with three eccentric circles (dashed circles). All stations are labeled with the station codes. Squares and balloons represent the STS5 and Trillium 120PH sensors, respectively. Triangles indicate the microbarometers collocated with the seismometers, and the circle represents the B084 borehole station at a depth of 148 m. The color version of this figure is available only in the electronic edition.
Published: 27 August 2019
are labeled with the station codes. Squares and balloons represent the STS5 and Trillium 120PH sensors, respectively. Triangles indicate the microbarometers collocated with the seismometers, and the circle represents the B084 borehole station at a depth of 148 m. The color version of this figure is available
Journal Article
Published: 01 February 2009
Vadose Zone Journal (2009) 8 (1): 174–176.
... particle size distributions with Kolmogorov fragmentation algorithms . Vadose Zone J . 8 : 202 – 208 (this issue). Ozdemirtas , M. , T. Babadagli , and E. Kuru . 2009 . Effects of fractal fracture surface roughness on borehole ballooning . Vadose Zone J . 8 : 250 – 257...
Journal Article
Journal: Geophysics
Published: 10 June 2016
Geophysics (2016) 81 (4): WB119–WB129.
... acquisition scheme based on a torus-shaped helium-filled balloon carrying the loop and moving it rapidly from one to the next measurement position along the profile lines. We have referred to this system as Torus-NMR. We have showed the feasibility of the system to deliver reliable results using common...
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Journal Article
Published: 07 February 2019
Petroleum Geoscience (2020) 26 (1): 110–125.
... volcanic tuffs (lithified ash), claystone and siltstone ( Watson et al. 2017 ). These drilling issues have included drilling fluid loss, bit balling (clogging), borehole breakouts and wellbore ‘ballooning’, where lost drilling fluid later returns to the wellbore. We propose that these drilling events can...
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Journal Article
Published: 19 November 2019
Geological Magazine (2020) 157 (4): 621–639.
... along the small diameter of the intrusion, and an intense deformation of the host rocks, especially at the western margin, all are evidence that the intrusion was ballooning during the late stages of its emplacement. Ascent and emplacement of the Chah-Musa body is ascribed to the tensional space...
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Journal Article
Journal: Geophysics
Published: 20 June 2016
Geophysics (2016) 81 (4): WBi–WBii.
...Kristina Keating; Mike Müller-Petke; Ahmad A. Berhoozmand; Jean-François Girard; Lin Jun 2016 Society of Exploration Geophysicists Dlugosch et al. use a near-surface slim-borehole NMR tool to detect and characterize a thin oil layer. The authors improve the tool’s performance...
Journal Article
Published: 21 March 2022
Petroleum Geoscience (2022) 28 (2): petgeo2021-061.
... . The origin of overpressure in ‘old’ sedimentary basins: an example from the Cooper Basin, Australia . Geofluids , 3 , 125 – 131 , https://doi.org/10.1046/j.1468-8123.2003.00055.x Ward , C. and Clark , R . 1998 . Anatomy of a ballooning borehole using PWD . Overpressures in Petroleum...
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Series: EAGE Education Tour Series
Publisher: EAGE
Published: 01 January 2018
EISBN: 9789462824508
... occur in association with ballooning; this type of fluid loss will not lead to well control issues because the total hydrostatic pressure does not decrease. Ward and Clark (1998 ) first used borehole ballooning for apparent wellbore expansion due to additional pressure losses during circulation...
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Summary graphic log of the Ravenscar Group, NE Yorkshire coast, made up from sections at Blea Wyke, from Hayburn Wyke to Burniston Bay, and at Cayton Bay and Gristhorpe Bay. (Full details of the succession are given in fig. 7. Sample locations can be obtained from The Journal of Geology's Data Depository.) Heights are based on our own field measurements, supplemented by data from the Ravenscar borehole, which were used to give total thickness of the Saltwick, Cloughton, and Scalby Formations (Eschard et al. 1991). M=marine units, within an otherwise nonmarine sequence. L.M.=Lebberston  Member; M.G.M.=Moor  Grit Member. Refer to tables 1 and 2 for stomatal density data. The stomatal density data of McElwain (1997) are based on examination of Harris’s collection in the Natural History Museum, London, and because this collection is not precisely located stratigraphically, large vertical error bars are shown (relevant data enclosed by balloons). Stomatal density work carried out for this study relies on material collected from specific plant beds: H=Hayburn Wyke Plant Bed; E=Negative Excursion Horizon; S=Solenites Bed. Other well-known plant beds are shown in figure 7. Approximate numeric ages from the Pálfy et al. (2000) timescale. The Cornbrash, at ∼196 m in the section, is a condensed limestone, and close juxtaposition of fossils of different ages probably explains the spread of carbon-isotope values within the unit.
Published: 01 May 2003
of Geology 's Data Depository.) Heights are based on our own field measurements, supplemented by data from the Ravenscar borehole, which were used to give total thickness of the Saltwick, Cloughton, and Scalby Formations (Eschard et al. 1991 ). M = marine units, within an otherwise nonmarine
Series: EAGE Education Tour Series
Publisher: EAGE
Published: 01 January 2018
EISBN: 9789462824508
... (Minfracturing Test, Microfracturing Test, Hydrofracturing Stimulation), Loss of Circulation, and Ballooning σ H (maximum horizontal in-situ stress) Magnitude Modeling of Wellbore Failure: The frictional limits to stress beyond which faulting occurs and degree of borehole deformation by drilling-induced...
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Journal Article
Published: 01 September 2022
Jour. Geol. Soc. India (2022) 98 (9): 1325–1326.
... in the concluding session will go a long way for risk mitigation. On 21 July, 9:50 AM, at the Swarnim Bharat Function Prof. Harsh Gupta released 75 balloons of national colours. In the inaugural function, Dr. Sumer Chopra, DG (I/C), ISR welcomed the dignitaries and delegates. Prof. B.K. Rastogi, Ex-DG, ISR...
Journal Article
Journal: Interpretation
Published: 16 July 2015
Interpretation (2015) 3 (3): SX63–SX74.
..., 1987 ; Jackson and Muggeridge, 2000 ; Novakovic et al., 2002 ; Jackson et al., 2009 ). Therefore, it is necessary to calibrate reservoir and analog models at different scales with a large range of observation data (lidar analogs, high-resolution seismic, borehole imaging, etc.). Statistical...
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Journal Article
Published: 04 April 2023
Bulletin of the Seismological Society of America (2023) 113 (4): 1390–1423.
... to deploy in a vault or borehole, combined infrasound and seismic observations enable the atmospheric contributions to the seismic data to be reduced algorithmically, akin to a “virtual vault” ( Charalambous et al. , 2021 ). On planetary bodies with harsh ground environments, such as Venus, balloon‐borne...
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Journal Article
Journal: Geophysics
Published: 07 January 2015
Geophysics (2015) 80 (1): Z1–Z30.
...; wherein said inputting information comprises measured well log and/or borehole information to model interference of the seismic wave field from interfaces near the receiver depth levels. The method further encompasses the outputting of an intrinsic attenuation model. WO/2014/191427 INVENTORS: Carter...