Mid-IR Dual-Wavelength Difference Frequency Generation Using Fiber Lasers as Pump and Signal Light Sources

Jiang, Jian; Jianhua, Chang; Su-Juan, Feng; Mao, Qinghe; Liu, Wenqing

doi:10.1088/0256-307x/26/12/124214

Cited by 5 publications

(3 citation statements)

References 15 publications

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“…In addition, the laying concentration of proppant has a certain influence on the embedding depth [10] . In 2018, Su analyzed the influence of proppant embedding through experiments and concluded that with the increase of closing pressure, the conductivity of proppant decreased obviously, and the conductivity of proppant with small particle size decreased slightly [11] . In 2020, Liu pointed out that the conductivity of ceramsite proppant is stronger than quartz sand and coated sand among the influencing factors of hydraulic fracturing support fracture in shale reservoirs.…”

Section: Introductionmentioning

confidence: 99%

Study on the conductivity of proppant in shale reservoir

Wen,

Huang,

Zhang

et al. 2024

J. Phys.: Conf. Ser.

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At present, in the process of developing shale reservoirs by hydraulic fracturing, proppants play a critical role in the overall fracturing effect. Therefore, accurately evaluating the conductivity of different proppants determines the development effect of shale reservoirs. In this paper, proppant screening is first carried out, and the conductivity of four different proppants under laying concentration and closing pressure is studied, including 10-20 mesh quartz sand proppants with non-standard particle size, and the influence of different factors on the embedding degree is analyzed. It is concluded that the bearing capacity of ceramsite proppant is usually 2-3 times stronger than that of quartz sand. The larger the particle size of quartz sand proppant is and the higher the concentration of sand is, the stronger the conductivity is. When the closed pressure of large-size quartz sand is less than 30 MPa, the laying concentration of 14 kg/m2 can obtain higher conductivity, and when it is greater than 30 MPa, 12 kg/m2 is more suitable for field application. The ceramsite proppant has been on the rise with the increase of closing pressure and sand concentration. The embedding depth gradually increases with the increase of closing pressure and the decrease of sand concentration. The embedding depth of shale is greater than that of sandstone, and the flow conductivity of proppant is usually lower than that of sandstone. According to the experimental results, large-size quartz sand has strong conductivity, but it is not easy to migrate and has poor bearing capacity. Therefore, large-size quartz sand proppant can be used in the low-pressure part near the well, supplemented by small-size quartz sand (40-70 mesh) to obtain better fracturing results. This study provides some technical guidance for shale reservoir development and shale fracturing dessert identification.

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Section: Introductionmentioning

confidence: 99%

Study on the conductivity of proppant in shale reservoir

Wen,

Huang,

Zhang

et al. 2024

J. Phys.: Conf. Ser.

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“…Particularly, an irregularly engineered QPM grating can only perform the fixed function, i.e., the designed function. Recently, by using the dispersion property of the periodically poled niobate (PPLN), Jiang et al [12] presented a novel dual-wavelength mid-IR DFG laser source based on a near-IR multiwavelength erbium-doped fiber laser (EDFL) and an ytterbium-doped fiber laser (YDFL). Two stable mid-IR radiation lines with a spacing of about 5.4 nm were simultaneously achieved, which may also be synchronously tuned between 3295 nm and 3356.3 nm.…”

Section: Introductionmentioning

confidence: 99%

Mid-IR dual-wavelength difference frequency generation in uniform grating PPLN using index dispersion control

Chang

Sun

et al. 2013

Chinese Phys. B

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“…We present here an alternative frequency generation (DFG) in a (NIR) fiber lasers that are comm others groups [4][5][6], but the lates scanning picoseconds fiber laser Laser (SPL) from Genia Photoni output pulses are synchronized at should be intrinsically robust to mechanical vi ble over a broad spectral range, and effici could meet all these goals is the MIR fiber laser. sers do not exist yet, and they still require nd highly efficient pump sources [2].…”

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confidence: 99%