Petrophysical Analysis Method to Identify "Sweet Spots" in Tight Reservoirs: Case Study From Punta Rosada Formation in Neuquen Basin, Argentina

Naides, Claudio Hugo

doi:10.2118/121313-ms

Cited by 6 publications

(1 citation statement)

References 7 publications

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“…Recently Chorn et al (2013), Pitcher et al (2012) and others (Naides 2010, Hashmy et al 2011, Baihly 2010, and LeCompte 2009) have begun to quantify the impact and propose operational responses.…”

Section: Literature Overviewmentioning

confidence: 99%

Shale Play Development Program Using Risk-Reward Mapping from Geospatial Analyses

Chorn

Yarus

Rosario-davis

2013

SPE Annual Technical Conference and Exhibition

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Finding the best drilling locations in an extensive shale play holding is key to achieving production profile expectations and good economic metrics. Shale plays have been described as statistical plays. However, it becomes increasingly unacceptable to drill disappointing, underperforming wells as the operator and partners move from the exploration lifecycle stage into the appraisal and field development stages.The physical and chemical properties of shales dictate the economic success of development drilling programs. It is recognized that at least seven parameters must fall within empirically-determined ranges for a play to have economic production rates and estimated ultimate recovery (EUR) exceeding threshold internal rate of return (IRR) requirements.A geostatistical shale property workflow that high-grades 160-acre sections in a regional shale play, using a limited number of wellbores with standard logging suites is demonstrated. This paper extends the workflow from high-grading drilling targets to quantitative risk assessment. An application of the workflow to a multi-square mile U.S. shale play illustrates the analysis and its interpretation. The example shows that down-spacing well density in high-graded sections (high potential reward) is a quantitatively lower risk investment program than would normally be expected. Typically high reward opportunities, in the investment world, are expected to represent higher risk as well. Geostatistical analysis in the example play shows just the opposite behavior because the statistical nature of the local shale quality can be mapped and profitably drilled.Exploiting this geostatistical, high-grading workflow can accelerate an operator's development program with higher rewards, lower risk, and better rates of return than pursuing a uniform development program over a large regional play.

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Section: Literature Overviewmentioning

confidence: 99%

Shale Play Development Program Using Risk-Reward Mapping from Geospatial Analyses

Chorn

Yarus

Rosario-davis

2013

SPE Annual Technical Conference and Exhibition

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Laboratory Measurements of Fluid Transport Properties on Tight Gas Sandstones and Applications

Albrecht

Reitenbach

2014

Energy Procedia

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Case Study of Using Basin Analysis to Evaluate Unconventional Gas Resources in Frontier Basins

Cheng

Holditch

et al. 2011

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As gas production from conventional gas reservoirs in the United States decreases, the industry is turning more attention to the exploration and development of unconventional gas resources (UGRs). This trend is expanding quickly worldwide. However, unlike in many mature North American basins where significant development of UGRs is now routine, many countries are just turning to UGRs exploration. Insightful resource assessment is important for tapping UGRs in these frontier basins. To evaluate the UGRs in frontier basins that are underexplored, we developed basin analysis methodology to 1) characterize basins; 2) establish analogs between frontier basins and mature North American basins; 3) estimate conventional and unconventional resources in mature North American basins; and 4) quantitatively predict UGRs in frontier basins by using information from analogous North American basins. This comprehensive basin analysis study not only validates the resource triangle, which is characterized by a large ratio of unconventional TRR (technically recoverable resources) to conventional TRR, but also makes it possible to quantitatively assess unconventional resources in under-explored basins worldwide. To demonstrate use of basin analysis in evaluating the UGRs of frontier basins, two world hotspots for UGRs exploration were selected as the target basins: Neuquén basin in South America and Berkine basin in North Africa. Recent assessment reports and exploration activities indicate that the two basins have substantial unconventional gas resources. As a case study, basin analysis was used to identify the North American reference basins that are analogous to the Neuquén and Berkine basins, and to characterize the distributions of UGRs in these frontier basins. Furthermore, the quantitatively estimated unconventional TRR were compared with those from EIA (Energy Information Administration) and companies to support the effectiveness of basin analysis results.

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Petrophysical Analysis Method to Identify "Sweet Spots" in Tight Reservoirs: Case Study From Punta Rosada Formation in Neuquen Basin, Argentina

Cited by 6 publications

References 7 publications

Shale Play Development Program Using Risk-Reward Mapping from Geospatial Analyses

Shale Play Development Program Using Risk-Reward Mapping from Geospatial Analyses

Laboratory Measurements of Fluid Transport Properties on Tight Gas Sandstones and Applications

Case Study of Using Basin Analysis to Evaluate Unconventional Gas Resources in Frontier Basins

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