HGS General Lunch- A New Methodology to Determine Well Spacing in Unconventional Reservoir - A Delaware Basin Study

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HGS General Lunch - Wednesday, September 23, 2020
Virtual Event via Zoom
12:00pm - 1:00pm

HGS Members -
$10 Non-Members - $30 Students - $5

A confirmation email will be sent upon registration with meeting links.

**Non-Members can submit an application and pay their dues before registering to get the member price. Please call the HGS office at 713-463-9476 to be registered only AFTER your application and dues are submitted.**


Speaker: Dicman Alfred

Company: SOTAOG

Dicman Alfred is currently the Director of Subsurface for SOTAOG, heading the real-time production optimization and predictive analytics group. He has 18 years of unique expertise in Geoscience and Engineering domains. His areas of focus include business development, petrophysical modeling, inter-discipline integration, geo-cellular modeling, analytical reservoir performance analysis, production optimization, completion design, data analytics and machine learning. Recent experiences include involvement as a Technical Advisor from acreage acquisition to development for Scala Energy, Senior petrophysicist with the Upstream Technology Worldwide Petrophysics group at Marathon Oil, Engineering lead for Eagle Ford field development and Team lead for field studies in Woodford, Eagle Ford and Austin Chalk. Prior to joining Marathon, he worked as a wireline field engineer for Halliburton Energy Services and as a Petroleum Engineer for Schlumberger Information Solutions. He holds a Master’s Degree in Petroleum Engineering from Texas A&M and a Bachelor’s Degree in Mechanical Engineering from Indian Institute of Technology, Chennai. 


A New Methodology to Determine Well Spacing in Unconventional Reservoir - A Delaware Basin Study 

Well spacing and its impact on performance degradation is currently an area of critical concern in unconventional reservoirs. A new methodology to estimate well spacing and optimum completion design based on local geology from readily available data is presented. The significant outcomes of this workflow are the ability to rank well performance, impact of geology/landing target, changes in pressure regimes along the lateral relative to an existing similarly landed producer.

At the core of this methodology is the innovative estimation of additional pressure induced from stimulation treatment long after closure when there is no more fluid leak-off into the matrix. This estimation is achieved through time dependent leak-off data that are usually available after stimulation. Multidisciplinary components like petrophysical properties, PVT, DFITs, geomechanical modeling and their uncertainties are stochastically engaged to realize the most probable stimulated rock volume (SRV).

A Delaware Basin Wolfcamp case study comprising of 10 wells is presented and the results obtained through the methodology are summarized below.

  • The would-be relative underperformers were identified immediately after the frac job.
  • The local faults/ fractured zones were identified and reaffirmed with seismic and well data.
  • Identified the impact of geology on completion variables.
  • The evaluated pressure regimes along the horizontal were corroborated by well performance.
  • Correlated the landing zone impact to stimulation.
  • The appropriate well spacing and optimum completion design to minimize well interactions were determined, specific to local geology and landing targets.

Present industry solutions to well spacing involve expensive geomechanical earth modeling or frac geometry monitoring that are time consuming, data intensive and unfortunately geography specific. The new methodology presented is quicker and requires no new data collection than those that are routinely gathered. 


Featured Sponsors

Diversified Well Logging is a major offshore geological services company with onsite and remote data acquisition and surveillance services in the U.S. and Mexican Gulf of Mexico.  It is also the leader in geochemical ‘mudlogging’ in unconventional U.S. plays using automated sample catching technology - RoboLogger - and realtime XRF-elemental analysis for quantitative formation evaluation, enhanced geosteering and advanced A.I. predictive services.

Website | LinkedIn | Facebook



Seismos, a technology company backed by Quantum Energy Partners, makes realtime subsurface monitoring available to every Oil and Gas operator via a plug-and-play tool for fracture measurements. A simple, non-intrusive attachment to the wellhead leverages Seismos’ acoustic technologies to stream subsurface data continuously during hydraulic fracturing, enabling full control of the operation.

Website | LinkedIn | YouTube | Twitter

September 23rd, 2020 12:00 PM   through   1:00 PM
Event Fee(s)
HGS Member $ 10.00
Non-Member $ 30.00
Student $ 5.00
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