C&P: Optimizing Wellbore and Cluster Placement in Horizontal Shale Wells

Speaker: Robert Barba
Speaker Robert Barba
Bob spent 10 years with Schlumberger as an openhole field engineer, sales engineer, and product development manager. While at Schlumberger he was the North American product champion for the FracHite and Quantifrac products that integrated wireline, testing, and pumping inputs to optimize hydraulic fracture treatments.  He was also the product ...

Bob spent 10 years with Schlumberger as an openhole field engineer, sales engineer, and product development manager. While at Schlumberger he was the North American product champion for the FracHite and Quantifrac products that integrated wireline, testing, and pumping inputs to optimize hydraulic fracture treatments.  He was also the product development manager for the QLA program that made the field log analysis “Cyberlook” program available to customers on personal computers.  Since then he has spent 22 years consulting to over 175 companies on petrophysics and completion optimization. He served as a SPE Distinguished Lecturer on integrating petrophysics with the hydraulic fracture treatment optimization process.  He has focused on the integration of petrophysics with completion designs in a variety of reservoirs in North America, conducting numerous field studies for operators evaluating the apparent frac length in over 2000 wells and providing "best practices" recommendations based on the study results (SPE 90483).  He has been responsible for the petrophysical analysis of 40 major fields worldwide as part of integrated reservoir characterization studies identifying remaining mobile hydrocarbons. He has authored 33 technical papers on the integration of petrophysics with completion designs, horizontal wells, and reservoir characterization projects.   His most recent major consulting projects have been optimizing completion practices in horizontal organic shale wells for major operators in the Marcellus shale, Utica, Cline, Eaglebine, Bakken, and Wolfberry.  Bob has a BS from the US Naval Academy and MBA from the University of Florida. He is also a member of the SPE, SPWLA, and the AAPG.

Full Description

Horizontal organic shale wells are typically completed with the same fluid system in each stage with identical pump schedules for each stage.  Each stage is not in the same stratigraphic interval vertically, however, and some reservoirs require more propped height than some fluid systems provide to connect the wellbore to the pay.  A lot of service company capital has been invested in systems that define horizontal heterogeneity in the shale plays using sophisticated horizontal logging programs.  This is counter-intuitive to the observation that these plays are successful and repeatable due to the relative lack of horizontal heterogeneity in these deep water sheet type depositional environments.  Production log data frequently indicates that entire stages are often not producing, however, suggesting there is a disconnect between the wellbore, propped fracture, and net pay.   It is proposed that a complete net pay and rock properties profile be generated in vertical pilot wells that define where the net pay is, what the rock properties distribution is, and what the effective propped height profile will be created as a function of wellbore placement vertically using a variety of frac fluid options.  This profile should then be validated with vertical well DFIT and traced propped frac treatments in the vertical wellbore.  With this information the optimum treatment can be designed for each stage depending on where the lateral intersects the vertical stratigraphic column.  If a stage cannot be effectively stimulated with available fluid systems it should be bypassed.   Examples of vertical well propped fracture dimensions vs fluid type and net pay distribution are presented for several of the major shale plays to support the proposed methodology.

Organizer Jonathan Godwin

Contact:


jgodwin@carboceramics.com


281-921-6526

When?

Wed, Nov. 20, 2013
11:30 a.m. - 1 p.m. US/Central

How Much?

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Where?

Greenspoint Club
16925 Northchase Dr.
Houston, TX 77060
USA

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