Analysis of Horizontal Well Fracture Interactions, and Completion Steps for Reducing the Resulting Production Interference
- Ali Daneshy (Daneshy Consultants Int'l)
- Document ID
- Society of Petroleum Engineers
- SPE Annual Technical Conference and Exhibition, 24-26 September, Dallas, Texas, USA
- Publication Date
- Document Type
- Conference Paper
- 2018. Society of Petroleum Engineers
- 4.1 Processing Systems and Design, 2.2 Installation and Completion Operations, 1.8 Formation Damage, 1.6.6 Directional Drilling, 2.1.3 Completion Equipment, 1.6 Drilling Operations, 4 Facilities Design, Construction and Operation, 4.1.2 Separation and Treating, 2 Well completion, 2.2.2 Perforating, 3 Production and Well Operations, 2.4 Hydraulic Fracturing
- intra-well fracture interactions, DAFI, production interference, stress shadowing, inter-well fracture interactions
- 21 in the last 30 days
- 383 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 8.50|
|SPE Non-Member Price:||USD 25.00|
An oft-occurring outcome of modern fractured horizontal well production systems is considerable interactions between adjacent hydraulic fractures; in the same well (intra-well), or in offset wells (inter-well). An unwanted consequence of these interactions is production interference. Inter-well interactions can cause production re-routing from one well into the adjacent well, and occasionally even short-term loss of production from one of the wells. Effects of intra-well fracture interactions may include production re-distribution within the created fractures, and, patchy depletion of the reservoir surrounding the horizontal well.
Causes of intra-well interactions include stress shadowing and Dynamic Active Fracture Interactions (DAFI). Under common fracturing practices these can cause unpredictable deviations in fracture growth path which can even lead to coalescence of some fractures and non-uniform production from individual fractures. Another important outcome of these interactions is differences in created fracture lengths, with some fractures extending a long distance into the reservoir. Recent trends towards larger size treatments and shorter spacing between individual fractures are intensifying these effects.
Inter-well interactions include frac-to-frac connections that hydraulically link the two wells together; either temporary (while fracturing only), or long term with conductive links. The latter can cause immediate production interference. Another less severe type of interaction is fracture shadowing, which may cause delayed production interference.
Paper discusses how these interactions are influenced by the stress environment, formation mechanical properties, type of completion (openhole liner, cemented liner, single fractures vs. multiple fractures), fracture orientation and spacing, well spacing, and perforation schemes. It presents completion steps that reduce the uncertainty in fracture growth path and location of longer fractures. It also shows how and why combining these steps with simultaneous and zipper fracturing can reduce damage to the wellbores and the extent of production interference.
On the positive side, analysis of fracture interactions can also provide valuable information about fracture characteristics; including estimates of length, orientation and conductivity, etc. With proper preparation, the information can also be used for real-time evaluation of the created fractures and treatment modifications to reduce severity of production interference.
|File Size||1 MB||Number of Pages||19|
Ajani, A. A., & Kelkar, M. G. (2012). "Interference Study in Shale Plays". SPE 151045 presented at the SPE Hydraulic Fracturing Technology Conference, The Woodlands Texas, 6 – 8 February 2012. doi: 10.2118/151045-MS
Awada, A., Santo, M., Lougheed, D., Xu, D., & Virues, C. (2016). "Is That Interference? A Work Flow for Identifying and Analyzing Communication Through Hydraulic Fractures in a Multiwell Pad". SPEJ, Oct. 2016, 1554 – 1566. doi: 10.2118/178509-PA
Daneshy, A. A. (2003). "Off-Balance Growth: A New Concept in Hydraulic Fracturing". JPT, April 2003, 78 – 85. doi: 10.2118/80992-JPT
Edwards, K. L., Weissert, S., Jackson, J. B., & Marcotte, D. (2011). "Marcellus Shale Hydraulic Fracturing and Optimal Well Spacing to Maximize Recovery and Control Costs". SPE 140463, presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, The Woodlands, TX, 24 – 26 January 2011. doi: 10.2118/140463-MS
Fisher, M. K., Heinze, J. R., Harris, C. D., Davidson, B. M., Wright, C. A., & Dunn, K. P. (2004). "Optimizing Horizontal Completion Techniques in the Barnett Shale Using Microseismic Fracture Mapping". SPE 90051, presented at the SPE ATCE, Houston TX, 26 – 29 Sept. 2004. doi: 10.2118/90051-MS
Lehmann, J., Budge, J., Palghat, A., Petr, C., & Pyecroft, J. (2016). "Expanding Interpretation of Interwell Connectivity and Reservoir Complexity through Pressure Hit Analysis and Microseismic Integration". SPE 179173 presented at the Hydraulic Fracturing Technology Conference, The Woodlands TX, 9 – 11 Feb. 2016. doi: 10.2118/179173-MS
Raterman, K. T., Farrell, H. E., Mora, O. S., Janssen, A. L., Gomez, G. A., Busetti, S., McEwen, J., Davidson, M., Friehauf, K., Rutherford, J., Reid, R., Jin, G., Roy, B., Warren, M. (2017). "Sampling a Stimulated Rock Volume: An Eagle Ford Example". URTeC: 2670034 presented at the Unconventional Resources Conference, Austin TX, 24 – 26 July 2017.
Sahai, V., Jackson, G., Lawal, H., Abolo, N., & Flores, C. (2015). "A Quantitative Approach to Analyze Fracture-Area Loss in Shale Gas Wells During Field Development and Restimulation". SPE Reservoir Evaluation and Engineering, Aug. 2015, 346 - 355. doi: 10.2118/169406-PA
Sani, A. M., Podhoretz, S. B., & Chambers, B. D. (2015). "The Use of Completion Diagnostics in Haynesville Shale Horizontal Wells to Monitor Fracture Propagation, Well Communication, and Production Impact". SPE 175917 presented at SPE/CSUR Unconventional Resources Conference, Calgary AB Canada, 20 – 22 Oct. 2015