SPWLA Monthly Luncheon Meeting

Tuesday – February 20, 2018

****New location****


Desi Vega’s Steakhouse

628 St Charles Ave, New Orleans, LA 70130

11:30 – 1:00 pm

Featuring a choice of:

Soup or salad

Steak Tips with Garlic Mashed Potatoes topped with Beef Dem-Glace


Pan Seared Gulf Fish topped with Lemon Butter Sauce and Mixed Vegetables

Please RSVP lunch preference to Elizabeth.Tanis@shell.com

Cost $35

Remember to renew SPWLA for 2018!!! (Instruction inside newsletter)

  Integrated Gas and Oil Zone Evaluation using NMR, Conventional, and Mud Gas Logging Data – A Norwegian Logging-While-Drilling Case History

Presented By: Holger Thern
Baker Hughes, a GE company



The presence of gas and light oil in hydrocarbon reservoirs has a distinct effect on commonly used porosity logging measurements such as density, neutron, and nuclear magnetic resonance (NMR). In case of changes in hydrocarbon composition along the wellbore, it can be difficult to compensate for gas and light oil effects resulting in inaccurate estimates of true formation porosity and saturation. Variations in lithology further complicate the usage of bulk density and neutron porosity. A new method for improved estimation of formation volumetrics is presented, combining lithology-independent NMR porosity log data with hydrocarbon compositional information from surface logging mud gas data. The discussion includes the compensation of a light HC effect by including bulk density data, as well as potential complicating matters such as mud filtrate invasion, variations in mineralogy, and the limited vertical resolution of mud gas data. Data from two wells drilled across gas, oil, and water intervals in a North Sea clastic reservoir illustrate the determination of a continuous HI log and the resulting improvements for porosity and saturation estimates.



Business Office

8866 Gulf Freeway, Suite 320

Houston, TX 77017 USA

Phone (713) 947-8727

Fax (713) 947-7181



New Orleans , LA

United States

30° 0' 0" S, 90° 0' 0" E

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Louisiana US