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Keywords: shale
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-214958-MS
... with quantification of the fraction of interbedded water bearing layers. This more complete analysis forms an improved basis for decision making. The overall proportion of silt and shale in the formation are estimated from the clay volume from elemental spectroscopy logs. The silt and shale are apportioned between...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-214908-MS
... analysis fluvial environment lithology clastic rock rock type sedimentary geology artificial intelligence reservoir characterization classification lithology classification thickness clustering shale thalweg mexico depositional environment sandstone histogram boundary automatic image...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-214963-MS
..., brightness, and texture variations by using ML algorithms such as k -means clustering and support vector machine. We applied the workflow to characterize unconventional reservoirs based on multi-scale well data from the Eagle Ford Shale USA including core photos, core gamma ray, core plug measurements...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-214981-MS
... In the drilling industry, shale mechanical properties can be predicted by rock mechanics testing procedures or by empirical relations using well logging data [ 18 ] [ 19 ]. The accurate evaluation of anisotropic geo-mechanical properties for shale not only helps with mitigating drilling issues...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-215070-MS
... displacement or improper fluid conditioning can result in leaving some bigger size solids in the screen running fluid which could plug the screens. Also, the exposure of reactive shales to water base fluids can destabilize the shales and lead to plugging. In some cases, the screen running fluid quality control...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210098-MS
... - all of which can be very expensive in terms of equipment, and lost time. Drilling through shale is inevitable. Shale tends to be characterized as high in-situ stresses, fissile, laminated, with low permeability. It has been observed that wellbore stability problems occur due to lack of appropriate...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210094-MS
... Abstract The objective of this study is to better understand the baseline aqueous chemistry and provenance of all groundwaters from the near surface shallow aquifers to the deeper Vaca Muerta shale ~ 2000 m depth subsea in the Neuquén Basin for water disposal monitoring. The regions included...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210202-MS
... to their storage, a systematic study relating pressure to the gas adsorption capacity of Jordanian shale formations is conducted. Additionally, the pendant drop method and the Axisymmetric Drop Shape Analysis technique are used to measure and evaluate brine-gas interfacial tension (IFT) as a function of pressure...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206194-MS
... (shales) by conducting large-scale numerical simulations for a wide range of reservoir fluid types (retrograde condensate, volatile oil, black oil) and different injection gases (CO 2 , C 2 H 6 , C 3 H 8 ) by considering relative permeability hysteresis, diffusion, and sorption. A dual-porosity naturally...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206256-MS
... Abstract Bedding layers are well-developed in shale and recognized to enhance the complexity of the hydraulic fracture network. A micromechanical evaluation approach of shale bedding layers based on indentation testing techniques was proposed. Rock thin section identification and scanning...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-205897-MS
... is the ratio of the cumulative adsorption amount over the sample weight, w sam : (6) V e x = ∑ i = 1 k   n a d s i / w s a m Abstract A critical component of natural gas in organic-rich shales is adsorbed gas within organic matter. Quantification...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206299-MS
... shale mullin lower sand history matching crude oil asphaltene connectivity reservoir fluid geologic time reservoir Introduction x9994 - x0075' MD; Lower energy layered sands. Dips are consistent throughout this interval x0075 – x0170' MD; High energy Layered sands. Resistivities...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201530-MS
... permian basin delaware basin structural geology pore pressure horizontal stress vertical resolution avo inversion resolution prediction seismic velocity in-situ stress lithology artificial intelligence wellbore design seismic data shale inversion geomechanical property Introduction...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201554-MS
... is an essential step prior to the microstructural analysis. In this study, we trained a Random Forest classifier to relate certain features corresponding to each pixel and its neighboring pixels in a scanning electron microscopy (SEM) image of shale to a specific component type; thereby developing a methodology...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195874-MS
... The concept of shale brittleness was introduced during the evaluation of prospective shales and has been used as a descriptor in screening hydraulic fracturing candidate intervals (Rickman et al 2008, and Grieser 2007). They evaluate shale brittleness by the normalized of Young's modulus...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195989-MS
... oil and gas fields. The principal source rocks are within the Madbi Formation, which comprises two units, the Lam and the Meem members. Both contain transgressive organically rich "hot" shales with total organic carbon (TOC) of 8 to 10%; these are located stratigraphically at the base of each member...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-196214-MS
... Artificial shale cuttings were prepared by cutting small rock fragments (0.3 to 0.5 cm thick) from larger rock specimens to simulate actual shale cuttings. Although the artificial cuttings are larger than the actual shale cuttings, the methodology developed in this study is applicable...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-199768-STU
... Abstract Shale reservoirs are estimated to account for approximately 10-30% of oil and gas worldwide, yet operators rarely produce more than 10% of the original hydrocarbons in place from them. These poor production numbers are a result of the assumption that the same pressure-volume...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195862-MS
... that contains a produce hydrocarbon and zones that are water-bearing, within the same reservoir system [Worthington, 1997; Onn C., et al., 2016 ]. These reservoirs are caused by fine-grained sandstone reservoir including shaly-sand reservoir, thin laminated sandstone-shale sequences, fresh formation water...

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