2017
DOI: 10.1021/acs.energyfuels.7b01223
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Abstract: Shale swelling can cause a series of problems during the exploitation of shale gas. However, because of the complex fabric of shale, a thorough understanding of shale swelling has not been gained. In this work, an experimental multiscale approach is employed to characterize the swelling properties of a shale sample from Sichuan basin of China. Wetting/drying tests are performed by environmental scanning electron microscopy (ESEM), and deformation of the material is measured by analyzing the ESEM micrographs us… Show more

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Cited by 65 publications
(33 citation statements)
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“…Despite several reports, studies showing the effect of varying shale amount on properties and oil recovery potential of a porous and permeable sandstone for waterflooding applications has not been fairly reported to as per our initial literature review. As sandstone is among the prime reservoirs to produce with oil recovery methods, the novelty of work lies in its experimental approach to confirm when waterflooding fails in conventional sandstone with increasing amount of shale …”
Section: Introductionmentioning
confidence: 99%
“…Despite several reports, studies showing the effect of varying shale amount on properties and oil recovery potential of a porous and permeable sandstone for waterflooding applications has not been fairly reported to as per our initial literature review. As sandstone is among the prime reservoirs to produce with oil recovery methods, the novelty of work lies in its experimental approach to confirm when waterflooding fails in conventional sandstone with increasing amount of shale …”
Section: Introductionmentioning
confidence: 99%
“…Thereafter, drilling operations in shale areas have become increasingly frequent . However, shales, which account for more than 75% of the drilled formations, tend to hydrate and swell when water is introduced, thereby causing more than 90% of wellbore instability problems . Thus, special attention must be paid when drilling in shale formations, especially to maintain the inhibition performance of drilling fluids …”
Section: Introductionmentioning
confidence: 99%
“…5,6 In recent years, shale gas developments have played an important role in China and received increasing interest in some other countries. [7][8][9][10] In drilling engineering, shale instability has always been a challenging and costly issue. [11][12][13] Drilling shale formations with traditional WDFs may lead to series problems, such as wellbore collapse, tight holes, stuck pipes, and lost circulation.…”
Section: Introductionmentioning
confidence: 99%