HGS News
HGS Annual Guest Night - May 22, 2010 - Speaker Announced
The 2010 HGS Guest Night speaker will be the renowned Dr. Patricia Wood Dickerson, The Geological Institute and Visiting Research Fellow, Jackson School of Geosciences, University of Texas at Austin. Presentation Title: "Big Bend - Where the Rockies Meet the Appalachians - Discoveries and Enigmas". On-line registration opens April 1, 2010
Northsiders Luncheon Meeting
Sponsored by Houston Geological Society
Tuesday 16-Sep-08 11:30 AM to 1:00 PM CDT
Speaker: Jeffrey E. Nunneley
Marathon Oil Company
425 North Sam Houston Pkwy E
Houston TX 77060 USA
Google Maps | Hotels Near | Yahoo! Maps | Weather Forecast
Phone: (281) 445-9000
Fax: (281) 445-9826
Details for "Northsiders Luncheon Meeting"
Gas in Place Identification from Mudlog Gas
Barnett Shale - Fort Worth Basin, Texas
Jeffrey E. Nunneley
Marathon Oil Company, Houston, TX
Total gas in place (GIP) within a shale is commonly identified by directly measuring the volume of gas given off from sections of full core sealed in canisters at the well site. It is usually measured in standard cubic feet per ton (SCF/ton) and includes free gas in pore spaces, adsorbed gas, plus gas dissolved in liquids in the pores. Gas that is liberated from the rock during the drilling process is frequently measured on a mudlog. The low permeability of a gas shale allows little migration of formation fluids into the well bore during drilling. The gas that is measured on a mudlog represents the total gas present in the volume of rock ground up and removed from the well bore. The mudlog gas can be normalized for penetration rate and mud flow volume to yield total gas from the mud system in parts per million. The volume of rock that is ground up while drilling and the density of the rock can be measured from wireline logging tools after drilling is completed. The combination of hole volume and rock density allow for calculation of the ground up rock mass responsible for the measured gas in the mud system.
GIP values from a canistered, Barnett Shale core have been compared to the GIP values calculated from a normalized mudlog. The two values have a favorable, relative relationship. The mudlog calculated data is more variable in magnitude than that of the canistered core data. A “calibration factor” must be applied to the mudlog gas calculation in order to match the magnitude of the conventional core data. This “calibration factor” is mainly related to the sampling process of the mudlog detector which only samples a portion of the gas present in the total volume of the mud system.
Speaker Jeffrey E. Nunneley
Jeffrey Nunneley is a geologist working for Marathon Oil Company in Houston where he is responsible for generating exploration opportunities onshore in the southern region of the United States. Jeffrey began his career in Dallas with Enserch Exploration and has also worked for El Paso Production Company. He has over 29 years of experience in trend evaluation and prospect generation across New Mexico, Oklahoma, Texas, Louisiana, Mississippi, Alabama and offshore Gulf of Mexico. Mr. Nunneley has a BS in geology from Texas A&M University and an MBA from the University of Dallas. He is an AAPG Certified Petroleum Geologist and a licensed Professional Geoscientist in the State of Texas.

Pricing
|
Comments
Event Contact |
Event Coordinator |
||
| Dave Tonner | John Lock | ||
| (713) 516-6894 | (832) 237-4000 | ||
| (832) 237-4700 FAX | |||
HGS Northsiders Lunch: Geologic Controls on Shale Oil on Tuesday 16-Mar-10 11:30 AM
HGS Applied Geoscience Mudstones Conference on Monday 7-Feb-11 7:30 AM

