Well Recovery, Drainage Area, and Future Drill-Well Inventory: Empirical Study of the Barnett Shale Gas Play
- Svetlana Ikonnikova (University of Texas at Austin) | John Browning (University of Texas at Austin) | Susan Christine Horvath (University of Texas at Austin) | Scott Tinker (University of Texas at Austin)
- Document ID
- Society of Petroleum Engineers
- SPE Reservoir Evaluation & Engineering
- Publication Date
- November 2014
- Document Type
- Journal Paper
- 484 - 496
- 2014.Society of Petroleum Engineers
- 1.6 Drilling Operations, 5.6.1 Open hole/cased hole log analysis, 5.8.2 Shale Gas
- well drainage area, attrition , refracturing, well interference
- 3 in the last 30 days
- 1,025 since 2007
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|SPE Member Price:||USD 12.00|
|SPE Non-Member Price:||USD 35.00|
The work is focused on one of the oldest and largest developed shale-gas plays - the Barnett shale. The primary objective is to bring more clarity and granularity to the Barnett resource estimation. The second task is to develop a resource-estimation methodology that one can use to evaluate other shale-gas plays in an attempt to determine their potential for development. We compile a comprehensive database, including production histories of more than 16,000 drilled wells and calibrated density log porosity and net-pay-zone-thickness maps. The data are used to estimate (1) the remaining technically recoverable free-gas resource, (2) individual-well recoveries, (3) areas drained by the existing wells, and (4) the future drill-well inventory. On the basis of the geographical distribution of individual-well estimated ultimate recoveries, we divide the Barnett acreage into 10 tiers. We describe the future drill-well inventory for each tier. In addition, to assess the potential contribution of refracturing to the future Barnett production, we develop a statistical procedure to identify wells that are likely to be refractured and then analyze their performances.
|File Size||1 MB||Number of Pages||13|
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