The Impact of Fracture Effectiveness on the Economics of Haynesville Resource Development - A Case History
- Robert Shelley (StrataGen) | Brian Davidson (StrataGen) | Koras Shah (StrataGen) | Stan Sheludko (StrataGen) | Amir Mohammadnejad (StrataGen)
- 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
- 2.5.2 Fracturing Materials (Fluids, Proppant), 7 Management and Information, 4 Facilities Design, Construction and Operation, 7.1.10 Field Economic Analysis, 5.5.8 History Matching, 7.1.9 Project Economic Analysis, 7.1 Asset and Portfolio Management, 2.4.1 Fracture design and containment, 5.5 Reservoir Simulation, 2 Well completion, 5 Reservoir Desciption & Dynamics, 3 Production and Well Operations, 4.1.2 Separation and Treating, 4.1 Processing Systems and Design, 2.4 Hydraulic Fracturing
- Well Spacing, Well Completion, Horizontal Well, Hydraulic Fracture Design, Haynesville
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Evaluating the performance of relatively deep Haynesville completions indicate that well and project hydrocarbon recovery can be negatively impacted by ineffective hydraulic frac design. Understanding the potential causes of these effects opens the door to strategies which can deliver better fracture effectiveness with corresponding increases in production and improved project economics. The subject of this paper are results from a detailed evaluation of a Desoto Parish well. This evaluation included calibration of a frac model by treatment pressure matching, use of a numeric reservoir simulator for multi-phase production history matching and comparing the fracture characteristics estimated. Also changes in conditions within the fracture over time as the wells are produced are taken into account. These evaluations concluded that completion, frac design, operational and production issues - individually or collectively - meaningfully influence the production and economics of multi-stage horizontal completions. The bottom line: Well recovery can be improved considerably with more effective frac designs that generate and/or sustain a larger contributing fracture area.
The findings show that reservoir characteristics, completion, frac design and production practices are the primary drivers of Haynesville well production. In addition, the results indicate that the hydraulic fractures created are not very efficient, in other words large portions of the propped fracture area do not contribute to well performance. This inefficiency is primarily due to conductivity limitations which can be attributed to a variety of issues including frac design, loss of proppant permeability due to stress, pinch points in the proppant bed, capillary effects, fluid retention, embedment, etc. Inefficient fractures will require more wells to be drilled in closer proximity to achieve optimum primary production. In addition the closer well spacing required in combination with high proppant intensity and large treatment volumes will increase the likeliness of adverse child to parent well interaction.
|File Size||903 KB||Number of Pages||9|
Jackson, K.,Palisch, T.,Lehman, L., 2014. Completion Optimization with Ceramics Provides Step Changes in Horizontal Performance for the 2md Bone Spring Formation - A Southeastern New Mexico Case History. Paper SPE 170720 presented at the SPE Annual Technical Conference and Exhibition, The Netherlands, 27-29 October.