Major Obstacles in Production From Hydraulically Re-Fractured Shale Formations: Reservoir Pressure Depletion and Pore Blockage by the Fracturing Fluid

Haddad, Mahdi; Sanaei, Alireza; Al-Shalabi, Emad W.; Sepehrnoori, Kamy

doi:10.15530/urtec-2015-2154393

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…Our recommendations mainly focus on addressing the possible chemical processes resulting from acid treatment because of access to geochemical data from both the injection formation and neighboring Madison Limestone formation. We also investigate several other possible explanations of the pressure behavior, including water blocking (Bahrami et al, 2012;Assiri and Miskimins, 2014;Haddad et al, 2015), gouge production (Sammis et al, 1987;Marone and Scholz, 1989;Rutqvist and Stephansson, 2003), and perforation plugging (Civan, 2015) and find that these are unlikely to have occured and/or difficult to properly verify given the currently available data. Therefore, we suggest that future GCS projects (1) include a geochemical study using baseline water chemistry prior to acid treatment to predict potential precipitation or (2) consider alternative stimulation fluids to HCl.…”

Section: Discussionmentioning

confidence: 99%

Skin factor and potential formation damage from chemical and mechanical processes in a naturally fractured carbonate aquifer with implications to CO2 sequestration

Nguyen

Dejam

Fazelalavi

et al. 2021

International Journal of Greenhouse Gas Control

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Section: Discussionmentioning

confidence: 99%

Skin factor and potential formation damage from chemical and mechanical processes in a naturally fractured carbonate aquifer with implications to CO2 sequestration

Nguyen

Dejam

Fazelalavi

et al. 2021

International Journal of Greenhouse Gas Control

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Hydraulic Fracture Diagnosis Using Partitioning Tracer in Shale Gas Reservoir

Tian

Shen

Liu

et al. 2016

Day 2 Thu, August 25, 2016

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Chemical tracer is an alternative technique for hydraulic fracture diagnosis other than tiltmeter and microseismic mapping. Fracture volume is an essential parameter for stimulation optimization and production forecast. In our previous work, we proposed a simple, cost-effective method to assess the fracture volume using partitioning chemical tracer. In the hydraulic fracturing stage, a partitioning chemical tracer slug is injected along with the fracking fluid. In the created hydraulic fracture, the tracer partitions in both vapor and liquid phases and flow back in the production stage. By analyzing the tracer production data, we could estimate fracture volume and leak-off volume. This work will first investigate chemical tracer selection criteria for the purpose of fracture volume diagnosis. Tracer partition coefficient and tracer adsorption are the main considerations. Our results suggest a careful section is needed for partition coefficient, balancing the estimation accuracy and investigation area. In addition, the selected tracer should have negligible adsorption. Numerical simulation is another way to interpret tracer test. In the second part of this paper, we propose a modified Random Walk Particle Tracking (RWPT) algorithm to simulate the partitioning chemical tracer transport with multiple mobile phases. Output obtained through the RWPT is identical with analytical solution and its tracer critical breakthrough time is more accurate than the result from the finite-difference based simulations.

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Major Obstacles in Production From Hydraulically Re-Fractured Shale Formations: Reservoir Pressure Depletion and Pore Blockage by the Fracturing Fluid

Cited by 2 publications

References 9 publications

Skin factor and potential formation damage from chemical and mechanical processes in a naturally fractured carbonate aquifer with implications to CO2 sequestration

Skin factor and potential formation damage from chemical and mechanical processes in a naturally fractured carbonate aquifer with implications to CO2 sequestration

Hydraulic Fracture Diagnosis Using Partitioning Tracer in Shale Gas Reservoir

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