REVOCHEM - Reservoir Characterization, Drainage Rock Volume (DRV) and Well Communication Monitoring using Geochemical Fing…

March 3, 2023


Description

 

 

 

 

Summary:

Thousands of hydrocarbon compounds naturally occur in produced oil and oil extracted from core or cutting samples, these compounds carry a tremendous amount of information on reservoir properties and subsurface fluid flow. A unique geochemical data-driven method is introduced that reveals both static reservoir characteristics such as permeability and oil saturation, as well as dynamic reservoir performance such as hydrocarbon contribution by zone, drainage height, and well communication. This methodology has proven beneficial throughout the lifecycle of unconventional reservoir development, aiding in answering many questions for optimal full field development.

 

In this presentation, we present a two-part workflow using geochemical information collected from both rock (cuttings/core) and produced oil. In the first part, bulk geochemical compound data collected from rock samples were used to generate a group of Reservoir Characterization Indices (RCI) to provide key reservoir properties such as permeability and oil saturation.  In the second part, time-lapse produced oil samples were allocated back to its contributing zones using regression models, based on geochemical fingerprint data of the rocks and oils, to reveal the temporal and spatial variation of the effective drained rock volume (DRV) surrounding horizontal wells in unconventional plays.  The probability of inter-well fluid communication between well pairs is also calculated based on the similarity of the geochemical fingerprints in the produced oils of the corresponding wells.

Case studies and data integration examples from Permian are presented that demonstrate: 1) geochemical reservoir characterization correlates with petrophysical analysis and when combined with time-lapse production allocation we gain an understanding of how targeting and reservoir properties effect zonal contribution through the life of the well; 2) production allocation based on high-resolution GCXGC data provides quantitative zonal contribution and vertical drainage height information, identifying shared contribution between stacked wells and quantifying the impact of frac hits to parent wells; 3) the landing zone can contribute anywhere from ~30% up to ~100% to the production, having this knowledge can lead to different infill and well management decisions; 4) P90 Drainage Frac Height can be utilized to understand SRV; and 5) significantly overlapped DRV can impair well performance. Results from these studies have also facilitated optimizing of several current landing zones and well spacings that lead to improved economic recovery of stacked plays in Midland basin.

This presentation will cover the fundamentals of geochemical fingerprint technology and its key applications to improve unconventional reservoir economics and reserves calculation by guiding well stacking & spacing, completion design, as well as EOR decisions. 

 

 

     


Event Format:

Lunch-and-Learn  at NexTiers Headquarters West-side of Houston. Several food options will be provided for those with various dietary needs. Parking is free. Doors open at 11:30 AM for networking. 


 


Featured Speakers

Speaker: Faye Liu
Speaker Faye Liu

Dr. Faye Liu is the founder and CEO of RevoChem LLC, a technology company with patented laboratory procedure and data analytics tools in high-resolution, high fidelity geochemical fingerprint data. Faye worked at ConocoPhillips as a senior geochemist for six years and pioneered the application of geochemical data as a reservoir …

Dr. Faye Liu is the founder and CEO of RevoChem LLC, a technology company with patented laboratory procedure and data analytics tools in high-resolution, high fidelity geochemical fingerprint data. Faye worked at ConocoPhillips as a senior geochemist for six years and pioneered the application of geochemical data as a reservoir monitoring tool. She then founded RevoChem with his husband Dr. Jiang Wu, who is a biochemist with many years of experience working in the medical field. Together they adopted and optimized several chemical analytical methods from other disciplines including medical, food, and environmental areas for modernized geochemical analysis and data analytics using geochemical data. Faye has experiences using geochemical fingerprint technology over 4,000+ of wells across various basin including Permian Basin, Eagle Ford, Montney, Gulf of Mexico, Scoop/Stack, Bakken, and Vaca Muerta, resulting in improved reservoir economics through optimization of stacking & spacing, completion design, conventional reservoir compartmentalization and well communication, and EOR options.


Faye holds a Ph.D. and M.S. in Geochemistry, both from Indiana University, Bloomington. She also holds a B.S. in environmental engineering. She has first-authored over a dozen peer-reviewed papers which have been cited over 1,000 times globally. She also serves on the advisory board of IU Earth & Atmospheric Sciences department and recipient of IU 20 under 40 of 2020. She and her company has been figured in multiple media reports including a headline column by Houston Chronicle.

Full Description



Organizer

Rob Bohn

Mobile - (346) 334 4406


Email - rbohn@sm-energy.com


Date and Time

Fri, March 3, 2023

11:30 a.m. - 1 p.m.
(GMT-0600) US/Central

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Location

NexTier Heatquarters

3990 Rogerdale Rd
Houston, TX 77042