In porous clastic rocks, the uneven distribution of high-pressure fluid will cause changes in water saturation and frequent changes in wavelength. The purpose of this article is to study the effect of high-pressure fluid on the competence of porous clastic rocks. First, according to the dynamic high pressure technology of the two-stage light gas gun and the compressed gas target technology, the principle of dynamic high pressure loading is introduced and the rock competence in the rheological process is analyzed. The traditional Gassmann equation is adjusted to match the temperature to verify the fluid mechanism model of the porous medium. The impact of high-pressure jet on the rock surface of porous clastic rock and the influence factors of high-pressure pulse jet on rock are discussed. The experimental results show that the rock damage effect is better when the distance between adjacent pulsed jets is 9mm.

Zhe Liu, Jiajing Li, Ming Hu, Lei Pang, Fengying Guo. Influence of High Pressure Fluid on the Competence of Porous Clastic Rock. Academic Journal of Engineering and Technology Science (2022) Vol. 5, Issue 1: 28-33. https://doi.org/10.25236/AJETS.2022.050106.

[1] Traxinger C, Pfitzner M . Effect of nonideal fluid behavior on the jet mixing process under high-pressure and supersonic flow conditions[J]. Journal of Supercritical Fluids The, 2021, 172(6):105195.

[2] Kagi H ,  Kubo T ,  Shinozaki A , et al. Reaction between Forsterite and Nitrogen Fluid at High Pressure and High Temperature[J]. Geochemistry International, 2019, 57(9):956-963.

[3] Ji Z . Research on thermal-fluid-structure coupling of valve plate pair in an axial piston pump with high pressure and high speed[J]. Industrial Lubrication and Tribology, 2018, 70(6):1137-1144.

[4] Hamza M F ,  Soleimani H ,  Merican Z , et al. Nano-fluid viscosity screening and study of in situ foam pressure buildup at high-temperature high-pressure conditions[J]. Journal of Petroleum Exploration and Production Technology, 2020, 10(3):1115-1126.

[5] Halama R ,  Konrad-Schmolke M , JCMD Hoog. Boron isotope record of peak metamorphic ultrahigh-pressure and retrograde fluid–rock interaction in white mica (Lago di Cignana, Western Alps)[J]. Contributions to Mineralogy and Petrology, 2020, 175(3):1-19.

[6] Daridon J L ,  Lin C W ,  Carrier H , et al. Combined Investigations of Fluid Phase Equilibria and Fluid–Solid Phase Equilibria in Complex CO2–Crude Oil Systems under High Pressure[J]. Journal of Chemical And Engineering Data, 2020, 65(7):3357-3372.

[7] Yehya M , E Andò,  Dufour F , et al. Fluid-flow measurements in low permeability media with high pressure gradients using neutron imaging: Application to concrete[J]. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, 2018, 890(MAY11):35-42.

[8] Runstedtier A ,  Yandon R ,  Duchesne M , et al. Conversion of Petroleum Coke in a High-Pressure Entrained-Flow Gasifier: Comparison of Computational Fluid Dynamics Model and Experiment[J]. Energy & Fuels, 2017, 31(5):5561-5570.

[9] Paknejad A ,  Mohammadkhani R ,  Zarei H . Experimental High-Temperature, High-Pressure Density Measurement and Perturbed-Chain Statistical Associating Fluid Theory Modeling of Dimethyl Sulfoxide, Isoamyl Acetate, and Benzyl Alcohol[J]. Journal of Chemical And Engineering Data, 2019, 64(12):5174-5184.

[10] Rodriguez C ,  Rokni H B ,  Koukouvinis P , et al. Complex multicomponent real-fluid thermodynamic model for high- pressure Diesel fuel injection[J]. Fuel, 2019, 257(Dec.1):115888.1-115888.28.

[11] Galvis V ,  Berrospi R D ,  Tello A , et al. Interface Fluid Syndrome (IFS) following Toxic Anterior Segment Syndrome (TASS): not related to high intraocular pressure but to endothelial failure[J]. Saudi Journal of Ophthalmology, 2019, 33(1):88-93.

[12] Basfar S ,  Ahmed A ,  Elkatatny S . Stability Enhancing of Water-Based Drilling Fluid at High Pressure High Temperature[J]. Arabian Journal for Science and Engineering, 2021, 46(7):6895-6901.