SPWLA Houston Downtown Meeting

Uncoming Meeting:

Please note the new speaker for the coming meeting.

Correcting LWD Propagation Resistivity logs in Horizontal Sinusoidal Wells for Better Sw Estimation: Case Study in a Deepwater, Channelized Turbidite Reservoir

by Hanming Wang, Chevron.

Downtown Seminar
Date:  Wednesday, Feb. 22th, 2012
Lunch:  11:30   Talk:  12:00
Reservations:  Email Tsoan Ma
RSVP before 4:00 P.M., Monday, Feb. 20th

Cost:  $20 (includes lunch*) Please, use  PayPal.

Cash, Check or Credit Card is acceptable for payment. Receipts will be provided.
*Lunch will be a boxed sandwich, chips, cookie and soda or water.

Place:    Chevron Auditorium, Ground Floor
1500 Louisiana St.
Houston, TX 77002

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Parking: Regency Parking, Allen Center Visitor Garage, various outdoor lots.

Abstrct:

Nowadays, with the advance of drilling technologies, the high-angle, horizontal wells are common and routine. However, quantitative petrophysical analysis in such environment is still lagging mainly because of the complexities of tool response, lack of fast modeling capability and fit-for-purpose software. In the deepwater, channelized turbidite reservoir, Horizontal Sinusoidal Pilot (HSP) wells are often adopted to address lateral heterogeneity and reduce horizontal well placement risk. Petrophysical analysis faces great challenges when there are no offset vertical appraisal wells available. The high deviation angle between LWD tool axis and formation makes the resistivity logs could be far away from the true resistivity (particularly in the sequence of small layers). It is necessary to correct the well-deviation effect before petrophysical analysis. In this presentation, we will present the workflow to correct well-deviation effect on LWD resistivity logs through an efficient, user-friendly software. The challenges and issues (beyond the repair/correction) will also be discussed. Several examples will be used for demonstration purpose. The well deviation is ranged from 80°-100°. The wells were drilled with OBM as wells as WBM with density image (or/and resistivity image) which provides necessary inputs (relative dip and bed boundary position/bed thickness) for the workflow. We will demonstrate the impact of corrected LWD resistivity logs on Sw estimation and OOIP calculation.

Bio:

Hanming Wang is currently a Staff Geophysicist and subject-matter-expert with Chevron Energy Technology Company. As a lead scientist for borehole resistivity/dielectric measurements within Chevron, his responsibility is to establish research directions and carry out this research in order to add value to Chevron’s oil and gas assets by improving the ability to use resistivity/dielectric -based methods to manage reservoirs, quantify reserves, improve geosteering capability and reduce uncertainty. Beginning his oil-career in 1992, He worked at China Petroleum University as an assistant professor where he participated the research of studying resistivity tool response in high-angle, horizontal wells. He was a summer intern with ExxonMobil Upstream Research Company in 1997 and Schlumberger Sugar Land Product Center (now Houston Formation Evaluation Center) in 1998. From 1999 to 2008, he was a scientist of Schlumberger Sugar Land Product Center where he luckily involved the R&D of several new resistivity logging technologies ( both wireline and LWD). He holds a BS degree in Physics from Zhejiang Normal University of China and MS degree in earth science from China Petroleum University and PhD in electrical engineering from well logging laboratory of University of Houston. He has actively involved the activities in oil-related professional societies. He served as the co-chair of SPWLA resistivity SIG (2002-2003), Chair of steering committee of well logging industrial consortium of University of Houston and adjunct professor of University of Houston. He authored, co-authored more 20 papers and more than 10 patents in the area of electromagnetic logging.