New Insight into Enhancing Organic-Rich Shale Gas Recovery: Shut-in Performance Increased through Oxidative Fluids
نویسندگان
چکیده
Oxidizing stimulation of organic-rich shale reservoirs, as a supplement hydraulic fracturing, was proposed to enhance gas recovery. Previous publications revealed that the interaction between and oxidative fluids causes components’ dissolution, which induces lots pores microfractures, resulting in rock microfracturing without confined pressure associated increments matrix permeability, improving unpropped fracture conductivity. However, enhancement recovery with still lacks an implementation clue targeted for specific engineering problems. In recent years, water–rock inducing microfractures indicates positive effect retained fracturing fluid on after operation, sheds light production by shut-in. The objectives this study are provide new perspective whereby shut-in performance could be increased injection into formation during operation. Firstly, mechanisms illustrate increment density networks, improvement network conductivity, promotion desorption diffusivity, demonstrated. Then, feasibility using increase performance, follows geological characteristics is evaluated. Finally, according analysis two typical types wells, one low high (LGP-HFR) other (HGP-LFR), strategy developed. This operation may become promising cost-effective approach
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ژورنال
عنوان ژورنال: Energies
سال: 2023
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en16114325