Mercury injection capillary pressure (MICP) results from outcrop samples in the Naknek Formation, Iniskin Peninsula, Alaska

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Frequently anticipated questions:


What does this data set describe?

Title:
Mercury injection capillary pressure (MICP) results from outcrop samples in the Naknek Formation, Iniskin Peninsula, Alaska
Abstract:
The State of Alaska Division of Geological & Geophysical Surveys (DGGS) is currently engaged in a multi-year study of the hydrocarbon potential of the Tertiary and Mesozoic strata in Cook Inlet basin. This report summarizes mercury injection capillary pressure (MICP) data for nine outcrop and measured section samples collected from the Naknek Formation on the Iniskin Peninsula in Cook Inlet. All samples were analyzed by PetroTech Associates, Houston, TX. Two of the samples were found to have overall capillary properties that would make them moderately good quality, Type B seals.
Supplemental_Information:
The DGGS metadata standard extends the FGDC standard to include elements that are required to facilitate our internal data management. These elements, referred to as "layers," group and describe files that have intrinsic logical or topological relationships. Attribute information for each layer is included in this metadata file under the "Entity_and_Attribute_Information" section. The metadata "layer" provides the metadata, codesets, or other documentation files applicable to all layers. The data layer(s) are titled: >sample-location-details: A CSV file with sample reference numbers, latitude, longitude, and map unit (formation). >micp-data: This folder contains Excel spreadsheets (one file for each individual sample; file names correspond to sample number preceded by a "t " ). The contents in each Excel file include worksheets with the following information: Sheet1 (data for individual sample), Chart1 (Bulk Volume), Chart2 (Pore Volume), Chart3 (Pore Aperture Size Distribution). >micp-summary: This folder includes Excel spreadsheets with summary data for the samples analyzed. The spreadsheets are: 1) rdf2013-6-naknek-pore-volume.xlsx - Pore volume plots and data. Note that the PetroTech cover letter refers to this file as Figure 1; 2) rdf2013-6-naknek-pore-size-distribution.xlsx - Pore aperture size distribution plots and data. Note that the PetroTech cover letter refers to composite plot as Figure 2 and the "thumbnail" plots as Figure 3;
  1. How should this data set be cited?

    Loveland, A.M., and Associates, PetroTech, 2013, Mercury injection capillary pressure (MICP) results from outcrop samples in the Naknek Formation, Iniskin Peninsula, Alaska: Raw Data File RDF 2013-6, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 10 p.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -153.41779
    East_Bounding_Coordinate: -153.24358
    North_Bounding_Coordinate: 59.64555
    South_Bounding_Coordinate: 59.63406

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Calendar_Date: 2012
    Currentness_Reference: ground condition

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: ASCII tabular files

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a point data set.

    2. What coordinate system is used to represent geographic features?

      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is North American Datum of 1927.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.9786982.

  7. How does the data set describe geographic features?

    rdf2013-6-sample-location-details
    A CSV file with sample reference numbers, latitude, longitude, and map unit (formation). (Source: Alaska Division of Geological & Geophysical Surveys and PetroTech Associates)

    Sample_ID
    Label assigned in the field to identify the sample. (Source: Alaska Division of Geological & Geophysical Surveys)

    Follows DGGS convention 20YYAAA9999-99a: YY=last two digits of year, AAA=geologist initials (one to three characters), 9999-99a (1-4 digits, followed by optional dashes and alpha characters) which indicate station number of the measured section, height from base in meters, and sample duplicate identifier. Samples were collected by Warwan Wartes (MAW).

    Latitude
    Latitude, NAD27 (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:59.63406
    Maximum:59.64555
    Units:decimal degrees

    Longitude
    Longitude, NAD27 (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:-153.41779
    Maximum:-153.24358
    Units:decimal degrees

    Formation
    When possible, we indicate our interpretation of the geologic map unit or formation associated with each rock sample. Names are derived from nomenclature or labeling provided in pre-existing literature (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    Naknek FormationField context and/or geochemical analysis indicate that this sample is associated with the Naknek Formation unit described in Kirschner, C.E., and Minard, D.L., 1948, Geology of the Iniskin Peninsula, Alaska: U.S. Geological Survey Oil and Gas Investigations Map, OM-95, 1 sheet, scale 1:4,800

    rdf2013-6-micp-data
    This folder contains Excel spreadsheets (one file for each individual sample; file names correspond to sample number preceded by a "t " ). The contents in each Excel file include worksheets with the following information: Sheet1 (data for individual sample), Chart1 (Bulk Volume), Chart2 (Pore Volume), Chart3 (Pore Aperture Size Distribution). (Source: Alaska Division of Geological & Geophysical Surveys and PetroTech Associates)

    rdf2013-6-micp-summary
    This folder includes Excel spreadsheets with summary data for the samples analyzed. The spreadsheets are: 1) rdf2013-6-naknek-pore-volume.xlsx - Pore volume plots and data. Note that the PetroTech cover letter refers to this file as Figure 1; 2) rdf2013-6-naknek-pore-size-distribution.xlsx - Pore aperture size distribution plots and data. Note that the PetroTech cover letter refers to composite plot as Figure 2 and the "thumbnail" plots as Figure 3; (Source: Alaska Division of Geological & Geophysical Surveys and PetroTech Associates)


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    This work was supported by State of Alaska Capitol Improvement Project funding, Alaska Peninsula Energy Development grant.

  3. To whom should users address questions about the data?

    Alaska Division of Geological & Geophysical Surveys
    Attn: James Weakland
    GIS Analyst
    3354 College Road
    Fairbanks, AK 99709-3707
    USA

    (907)451-5029 (voice)
    dggsgis@alaska.gov

    Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays


Why was the data set created?

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) is currently engaged in a multi-year study of the hydrocarbon potential of the Tertiary and Mesozoic strata in Cook Inlet basin. This report summarizes mercury injection capillary pressure (MICP) data for nine outcrop and measured section samples collected from the Naknek Formation on the Iniskin Peninsula in Cook Inlet. All samples were analyzed by PetroTech Associates, Houston, TX. We provide: the capillary pressure data in its native spreadsheet format; correspondence from PetroTech Associates describing the methods used in MICP analyses, a summary of the data, and references cited; and sample location coordinates in CSV format.


How was the data set created?

  1. From what previous works were the data drawn?

    Kirschner, C.E. and Minard, D.L., 1949 (source 1 of 1)
    Kirschner, C.E., and Minard, D.L., 1949, Geology of the Iniskin Peninsula, Alaska: Oil and Gas Investigations Map OM 95, U.S. Geological Survey, United States.

    Online Links:

    Other_Citation_Details: 1 sheet, scale 1:48,000
    Type_of_Source_Media: paper
    Source_Scale_Denominator: 48000
    Source_Contribution: Sample collection

  2. How were the data generated, processed, and modified?

    Date: 2012 (process 1 of 2)
    Sample collection - Rock samples were collected from outcrops and measured sections of the Naknek Formation on the Iniskin Peninsula in Cook Inlet.

    Data sources used in this process:

    • Kirschner, C.E. and Minard, D.L., 1949

    Date: 2012 (process 2 of 2)
    Mercury injection capillary pressure analysis - Samples were submitted to PetroTech Associates, Houston, TX for mercury injection capillary pressure analysis. Following receipt of the samples, a representative portion of each was trimmed to fit the sample holders and examined under reflected light microscopy to note any irregularities that might affect the data quality. The rock surfaces were cleaned of any mold or dust and the samples then dried to a constant weight in a low temperature oven before being analyzed. During capillary pressure testing , the volume of mercury injected was measured at 118 pressure points from 1.64 to 59,500 psia. These data were then corrected for closure. The "closure" volume is the amount of mercury intrusion that occurs as the mercury conforms to the sample surface, filling any irregularities, prior to entering the pore system. The resultant data and comparative plots are provided in this data release. See manuscript for references.

  3. What similar or related data should the user be aware of?

    Finzel, E.S., Gillis, R.J., Ridgway, K.D., and LePain, D.L., 2009, Preliminary evaluation of basin margin exhumation and provenance of Cenozoic strata, Chuitna and Beluga rivers area, Cook Inlet forearc basin, Alaska: Preliminary Interpretive Report PIR 2009-4, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 16 p
    Finzel, E.S., Ridgway, K.D., and LePain, D.L., 2009, Sedimentology of an Oligocene-Miocene incised paleovalley, Tyonek Formation, Cook Inlet Basin, Alaska: Preliminary Interpretive Report PIR 2009-8B, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: p. 99-107
    Gillis, R.J., 2013, Overview of 2012 field studies: Upper Alaska Peninsula and west side of lower Cook Inlet, Alaska: Preliminary Interpretive Report PIR 2013-1, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 48 p
    Gillis, R.J., LePain, D.L., Ridgway, K.D., and Finzel, E.S., 2009, A reconnaissance view of an unnamed fault near Capps Glacier, northwestern Cook Inlet basin, and its potential as a regional-scale, basin-controlling structure: Preliminary Interpretive Report PIR 2009-3, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 9 p
    Helmold, K.P., LePain, D.L., Wilson, M.D., and Peterson, C.S., 2013, Petrology and reservoir potential of Tertiary and Mesozoic sandstones, Cook Inlet, Alaska: A preliminary analysis of outcrop samples collected during 2007-2010 field seasons: Preliminary Interpretive Report PIR 2013-5, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 34 p
    Herriott, T.M., Wartes, M.A., Stanley, R.G., Lillis, P.G., Helmold, K.P., Decker, P.L., and Gillis, R.J., 2013, Oil-stained sandstones of the Upper Jurassic Naknek Formation and Upper Cretaceous Kaguyak Formation, Kamishak Bay area, lower Cook Inlet, Alaska (poster): AAPG Pacific Section Meeting, Monterey, CA, April 23, 2013: Poster and Presentation Herriott, T.M. and others, 2013, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 1 sheet
    Hickey, J.J., Wilson, M.D., and Reifenstuhl, R.R., 2007, Petrographic study of 50 samples from the Tertiary sandstone of Cook Inlet, Alaska: potential tight gas reservoirs: Report of Investigation RI 2007-2, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 64 p
    LePain, D.L., Lillis, P.G., Helmold, K.P., and Stanley, R.G., 2012, Migrated hydrocarbons in exposure of Maastrichtian nonmarine strata near Saddle Mountain, lower Cook Inlet, Alaska: Report of Investigation RI 2012-1, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 13 p
    LePain, D.L., 2009, Preliminary results of recent geologic investigations in the Homer-Kachemak Bay area, Cook Inlet Basin: Progress during the 2006-2007 field season: Preliminary Interpretive Report PIR 2009-8, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 187 p
    Loveland, A.M., and Associates, PetroTech, 2013, Mercury injection capillary pressure (MICP) results from outcrop samples in the Tyonek, Beluga, and West Foreland Formations, Tyonek and Talkeetna quadrangles, Alaska: Raw Data File RDF 2013-4, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 5 p
    Loveland, A.M., 2010, Results of mercury-injection capillary pressure tests on outrcrop samples in the Tyonek area of Cook Inlet: Raw Data File RDF 2010-1, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 102 p
    Loveland, Andrea, and Associates, PetroTech, 2013, Mercury injection capillary pressure results from outcrop samples in the Indecision Creek Member of the Naknek Formation and the Kaguyak Formation type section: Raw Data File RDF 2013-1, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 4 p
    Reger, R.D., 2009, Reinterpretation of the Kaloa deposits near Granite Point, northwestern Cook Inlet, Alaska: Preliminary Interpretive Report PIR 2009-2, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 8 p
    Shellenbaum, D.P., Gregersen, L.S., and Delaney, P.R., 2010, Top Mesozoic unconformity depth map of the Cook Inlet Basin, Alaska: Report of Investigation RI 2010-2, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 1 sheet, scale 1:500,000
    Zippi, P.A., and Loveland, A.M., 2012, Palynological analysis of 228 outcrop samples from the Kenai, Seldovia, and Tyonek quadrangles, Cook Inlet region, Alaska: Raw Data File RDF 2012-1, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 10 p


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    This publication is intended to provide timely release of raw field and analytical data. The results and methodology provided by PetroTech Associates have not been reviewed by DGGS staff or others to assess the accuracy of the data. In cases where samples were collected from measured sections, we provide the coordinates of the base of the measured section.

  2. How accurate are the geographic locations?

    Location coordinates were obtained using handheld GPS units with a typical error of 7 m or less. In cases where samples were collected from measured sections, we provide the coordinates of the base of the measured section.

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    The PetroTech Associates lab was able to analyze all of the MICP samples that were submitted.

  5. How consistent are the relationships among the observations, including topology?

    Not applicable


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints:
This report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).
Use_Constraints:
Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. The user specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.

  1. Who distributes the data set? (Distributor 1 of 1)

    Alaska Division of Geological & Geophysical Surveys
    3354 College Road
    Fairbanks, AK 99709-3707
    USA

    (907)451-5020 (voice)
    (907)451-5050 (FAX)
    dggspubs@alaska.gov

    Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays
    Contact_Instructions:
    Please view our website (<http://www.dggs.alaska.gov>) for the latest information on available data. Please contact us using the e-mail address provided above when possible.
  2. What's the catalog number I need to order this data set?

    RDF 2013-6

  3. What legal disclaimers am I supposed to read?

    The State of Alaska makes no expressed or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 12-Sep-2013
Metadata author:
Metadata manager
3354 College Road
Fairbanks, AK 99709-3707
USA

(907)451-5020 (voice)

Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:


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