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Title: Data Analytics of Hydraulic Fracturing Data

Abstract

These are a set of slides on the data analytics of hydraulic fracturing data. The conclusions from this research are the following: they proposed a permeability evolution as a new mechanism to explain hydraulic fracturing trends; they created a model to include this mechanism and it showed promising results; the paper from this research is ready for submission; they devised a way to identify and sort refractures in order to study their effects, and this paper is currently being written.

Authors:
 [1];  [1];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1304742
Report Number(s):
LA-UR-16-26184
DOE Contract Number:
AC52-06NA25396
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING; Earth Sciences

Citation Formats

Zhang, Jovan Yang, Viswanathan, Hari, Hyman, Jeffery, and Middleton, Richard. Data Analytics of Hydraulic Fracturing Data. United States: N. p., 2016. Web. doi:10.2172/1304742.
Zhang, Jovan Yang, Viswanathan, Hari, Hyman, Jeffery, & Middleton, Richard. Data Analytics of Hydraulic Fracturing Data. United States. doi:10.2172/1304742.
Zhang, Jovan Yang, Viswanathan, Hari, Hyman, Jeffery, and Middleton, Richard. 2016. "Data Analytics of Hydraulic Fracturing Data". United States. doi:10.2172/1304742. https://www.osti.gov/servlets/purl/1304742.
@article{osti_1304742,
title = {Data Analytics of Hydraulic Fracturing Data},
author = {Zhang, Jovan Yang and Viswanathan, Hari and Hyman, Jeffery and Middleton, Richard},
abstractNote = {These are a set of slides on the data analytics of hydraulic fracturing data. The conclusions from this research are the following: they proposed a permeability evolution as a new mechanism to explain hydraulic fracturing trends; they created a model to include this mechanism and it showed promising results; the paper from this research is ready for submission; they devised a way to identify and sort refractures in order to study their effects, and this paper is currently being written.},
doi = {10.2172/1304742},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 8
}

Technical Report:

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  • This report summarizes the results of hydraulic fracturing tests carried out in borehole RRL-2 by the Engineering Development Department of the Basalt Waste Isolation Project (BWIP). Test results, raw data, and the method of analysis utilized are presented. This report is intended to aid the reader, who is familiar with the hydraulic fracturing technique, in making an independent review of the reported results. Included are the results of hydraulic fracturing tests conducted in borehole DC-12. These results are provided for comparison purposes only. 5 refs., 50 figs., 4 tabs.
  • Results are presented of work performed to study case histories of logging problems/requirements in tight gas sand areas, provide production histories/completion information on selected Uinta Basin tight gas sand wells, provide geologic guidance and additional technical input for computer simulation of tight gas sand well behavior, and develop information about production histories, completion techniques and reservoir rock characteristics from selected tight gas sand key wells in the Piceance and Green River Basins. A list of gas sand wells in the Uinta Basin is included along with gas production statistics, completion and reservoir data, and well production data. (JRD)
  • Case studies are presented in which the orientation and magnitude of in-situ stresses are estimated. The estimates are based on geological mapping, geophysical logging, and materials testing. The case studies show that there has been some success in predicting stress orientation based on an analysis of geological and geophysical data alone. The acquisition of such data should be pursued because, without other input, it is still the only way to infer the hydrofracture orientations outside of those sites where results are known from actual fracturing operations. The case studies also show the uncertainties in attempting to predict horizontal stress magnitudes.more » A possible approach to reducing the uncertainty of predicting the direction and magnitude of in-situ stresses is to correlate geological and geophysical data with mechanical properties derived from core and in-situ tests. Such correlations would extend the results of other tests and enable more accurate extrapolations to other levels in a given wellbore or to locations at a distance from the wellbore. 68 references, 14 figures, 5 tables.« less
  • A comprehensive suite of geophysical logs was obtained from four deep monitoring boreholes at the New Hydrofracture Facility. The logging was an attempt to obtain stratigraphic, structural, and hydrologic information on the subsurface environment surrounding the hydrofracture facility. Logs obtained include caliper, gamma, neutron, density, single-point resistance, long- and short-normal resistivity, spontaneous potential, temperature, acoustic velocity, variable density, and borehole televiewer. Analysis and interpretation of the geophysical logs allowed the stratigraphic section at the facility to be determined and, by comparison with calibrated geophysical logs from borehole ORNL-Joy No. 2, allowed detailed inferences to be drawn about rock types andmore » properties at the hydrofracture facility. Porosity values measured from the logs for Conasauga Group strata, as well as permeability values inferred from the logs, are low. Several intervals of apparently greater permeability, associated primarily with limestone-rich portions of the Maryville Limestone and sandstone-rich portions of the Rome Formation, were noted. Numerous fractures were identified by using several logs in combination. No one geophysical log was reliable for fracture identification although the acoustic-televiewer log appeared to have the greatest success. In addition to their characterization of subsurface conditions in the vicinity of the hydrofracture facility, the geophysical logs provided data on the extent of hydraulic fractures. Anomalies on single-point resistance logs that corresponded to prominent fractures identified on televiewer logs indicate intervals affected by hydraulic fractures associated with waste injection at the New Hydrofracture Facility. 14 refs.« less
  • The Los Alamos Scientific Laboratory is currently conducting a study to determine the feasibility to extract geothermal energy from dry hot rock. The investigated concept calls for the creation of a hydraulic fracture in hot, impermeable rock. Heat will be exchanged subsequently at the fracture surface between the rock and a circulating fluid. The successful creation of hydraulic fractures in the granitic section of exploratory holes GT-1 and GT-2 yielded sufficient data to calculate the average permeability of the rock next to a fracture by means of the mathematical model. The calculated permeabilities were found to be in the microdarcymore » range and proved the granitic rock penetrated by GT-1 and GT-2 to be sufficiently impermeable to test the above concept. (auth)« less