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Keywords: shale sample
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-205897-MS
... amount of adsorbed gas in the Marcellus shale sample. The custom-built volumetric apparatus is a differential unit composed of two identical single-sided units (one blank and one adsorption side) connected with a differential pressure transducer. The scale of the differential pressure transducer is ± 50...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201743-MS
... on unpreserved Eagle Ford crushed samples and core plugs with n-C12 as the oil phase. Core plugs and crushed preserved shale samples were vacuum dried and then re-saturated with n-C12 at 6000 psi for 48 hours, then huff-n-puff experiments were conducted using n-C5, C2 and N2. Recovery factors obtained using n-C5...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201653-MS
... diffusion coefficient shale gas diffusion model organic matter contribution length scale reservoir arrangement shale sample diffusion length coefficient kerogen Introduction Gas production from shale-gas resources constitutes the largest portion of total gas production in the US ( EIA...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195819-MS
... experiment Oil Recovery chemical blend imbibition matrix permeability imbibition cell Oil extraction kerosene shale sample shale fragment Introduction Technological advancements in horizontal drilling and hydraulic fracturing made shale oil production possible. According to EIA the shale...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-199773-STU
... of these pores through statistical analysis, it is possible to be able to ascertain more characteristics of the reservoir as a whole. Therefore, this research aims to develop the quantitative method to characterize pore structure and discuss the feature of pore structure of high-maturity shale samples from...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–26, 2018
Paper Number: SPE-191632-MS
... characteristics and fluid properties. Moreover, we use the gas-liquid Gibbs adsorption model for gas adsorption on wet solid surfaces with water present, which is not considered in the literature. 3D pore networks and nitrogen adsorption isotherms are generated for the Silurian Longmaxi Formation shale samples...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–26, 2018
Paper Number: SPE-191504-MS
... in such formations through the transient analysis of experimental data from magnetic suspension balance is presented. Adsorption of gases onto the tight shale samples were measured using the magnetic suspension balance (MSB) apparatus at a constant pressure and temperature conditions. The current work presents...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–26, 2018
Paper Number: SPE-191700-MS
... to conformance on low pressure portion or due to intrusion at high pressure region. Figure 1 displays various stages that a shale sample undergoes during MICP test. Later, Lan et al (2017) characterized the MICP process with a set of three equations. Their derivation seemed a version of mixing law usage...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187336-MS
... Abstract This paper experimentally investigates the damage evolution (or the deformation process) induced by externally applied stress on unconventional shale samples. The focus is to understand the physics behind the complex failure process occurring at the micro-scale, and thus provide useful...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187240-MS
... the interactions of the chemicals with the shale samples. Micro-CT scanning and scanning electron microscopy were used to visualize morphological changes in the shale. A pilot was designed in an existing pad with stable production so that the benefits could be quantified on production rate and recovery...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187041-MS
... stress region stress data shale sample log-log plot permeability Introduction Here, X denotes the Biot coefficient ( Biot, 1941 ). The data of porosity and permeability variation with effective stress have been correlated using various models in the literature. Dong et al. (2010...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181342-MS
... comparisons between Eagle Ford shale samples with fresh water or certain treatment fluids, proppant embedment depths were observed to be shallower under treatment conditions. While the number of proppant-induced fractures increased, their widths were observed to be narrower in treated shale samples, which...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-175070-MS
.... The laboratory testing of actual shale samples from reservoir cores is important for characterizing shale gas adsorption behavior. Previous laboratory studies have reported data from measurements at single temperatures, and the measured data have been represented by Langmuir isotherms. However, the effect...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-175035-MS
... permeabilities. Presence of the nanopores may cause rarefaction effects, especially in laboratory conditions, which increases the effects of temperature and pressure on the apparent permeability of shale samples. In order to determine the permeability of these resources, laboratory measured apparent...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-175155-MS
.... In this paper, we develope a model to characterize PSD of shales using water adsorption isotherms. We apply the model on several shale samples and compare the results with the PSDs obtained from BET (Brunauer-Emmett-Teller) analysis using the N 2 and CO 2 adsorption isotherms. The proposed model describes...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-175154-MS
... challenging due to the complexity of shale-water interactions. In this study, samples of flowback water and downhole shales are analyzed to investigate the mechanisms controlling the chemistry of flowback water. The water samples at different flowback times and the shale samples are collected from three...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-173473-STU
... during the experiment. Instead of flowing 2% KCl through the fracture as specified by ISO standards, the modified tests can flow dry gas, wet gas, fresh water, brine of various concentrations and multi-phase flow for different reasons, such as protecting the shale sample by flowing dry nitrogen ( Zhang...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-166419-MS
... was determined with X-ray diffraction. A pressure transient technique was employed to measure the permeability of fluid and gas passing through a shale sample. We also compared our permeability data with the experimental data using the conventional GRI method. Brinell hardness was measured before and after...

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