... with large-scale true triaxial fracturing physical simulation equipment, the laboratory experiments of fracture monitoring of concrete samples were carried out with bare optical fibre. The experimental results show that OFDR optical fibre sensing technology can monitor the change of strain evolution...

... and operations perforation notch reservoir characterization openhole wellbore experiment transverse fracture hydraulic fracturing fracture fip borehole initiation experimental comparison study circular notch upstream oil & gas reservoir geomechanics prediction wellbore proceedings...

... of drilling fluid invasion on the collapse pressure is quantitatively evaluated. This study can provide a theoretical basis for deep coal seam drilling and coalbed methane development. 2 EXPERIMENT 2.1 Experimental conditions (1) Temperature and pressure The deep Jurassic coal seam J2kz-J1y in the northern...

... of a hydraulic fracture in the absence of proppant. These solutions are relevant in the context of micro hydraulic fracturing tests for in-situ stress determination. In this work, we report a laboratory hydraulic fracture experiments performed in sandstones with the aim to study experimentally fracture closure...

... and MTF at various pore sizes. UTF Cycle 4 4. CONCLUSION Experimental results are presented for enhancing oil recovery using cyclic gas injection (CO2, C2H6, and C3H8) in UTF and MTF. Several experiments were conducted to investigate the effectiveness of CO2, C2H6, and C3H8 HnP injection in UTF and MTF...

... through the above method. The grain gradation Fig. 6. Grading curve of cuttings of different rock samples. 2.3. Experimental test methods The experiment mainly includes the group cuttings experiment and the uniaxial compressive strength test of the corresponding rock blocks. (i) Group cuttings experiment...

... stronger creep mechanical behavior. The creep mechanical behavior has direct influence on borehole shrinkage and casing load. The potential engineering risks need mechanism explanation and quantitative assessment. The creep mechanical behavior of deep shale rocks was studied by experiments, meanwhile...

... drillability are majorly implemented in two ways: indoor rock core experimental and numerical model (Gan et al., 2021). Micro-drilling experiments (Head, 1951) are a typical indoor test for evaluating drillability, which measures the time required to drill 2.4 mm at a given drilling pressure and rotate speed...

... surface after fracturing are analyzed. A numerical model of fracture propagation based on the phasefield method is proposed to simulate the fracturing in basalt reservoirs. The study result can be used to help improve hydraulic fracturing design. 2. TRUE TRI-AXIAL FRACTURING EXPERIMENT 2.1. Experimental...

.... The following sections detail the experimental method, followed by results' presentation and discussions comparing the strain data obtained with the different techniques. 2. MATERIAL AND TESTING METHOD 2.1. Principle of FBG sensing FBG sensors are optical devices that function by intermittently shifting...

... et al, 2011; He C M et al, 2018; Chen L F et al, 2013) in the fracture is evaluated by improving the experimental displacement device. Finally, the construction parameters and dosage are optimized through the visual simulation experiment of migration and placement in the fracture(Liu X Q et al...

... properties is analyzed by triaxial mechanical experiments, and the constitutive models of shale hydration damage under different confining pressures are constructed by adopting Weibull distribution of rock micro-unit strength. 2. MAIN TEXTSOFTENING EXPERIMENT OF SHALE UNDER HYDRATION 2.1. Experimental Scheme...

... experimental work justifies the application of notches to address the significant high breakdown pressure challenge in openhole multistage fracture stimulation, and the latter provides useful estimations that can be applied in well stimulation design. 2. EXPERIMENTAL STUDY Hydraulic fracturing experiments...

... experiments on the ultra-deep carbonate rock core of Tarim Oilfield to measure rock mechanics parameters and then build artificial carbonate samples to make fracturing experiments under the acoustic signals supervision. Based on the experimental results and the theoretical formula research, the formula...

... acidification of carbonate matrix and made it clear that there was a competition between wormholes. In this study, the CO2 immersion experiment in high temperature and high pressure is conducted and the replacement law between CO2 and crude oil will be discussed with the help of NMR technology. 2. EXPERIMENTAL...

... as the stress measurements. Xu, 2020 documents the experimental procedures in detail and the estimation of the viscoelastic parameters B and n (Table 1) from each experiment corresponding to individual stress layers. We utilize these B & n values for the individual samples in our analysis. layers. Ma and Zoback...

... & gas volcanic rock fracture stress difference breccia result show experiment injection time morphology ground stress difference perpendicular hydraulic fracture horizontal ground stress difference ARMA/DGS/SEG International Geomechanics Symposium 21 43 Title: Experimental study...

.... In this study, for thin interbedded shale reservoir in jimsar, we conduct a series of large-scale triaxial fracturing simulation experiments to investigate the effect of fluid type, natural fractures, bedding planes, and pump rate on fracture propagation and morphology. 2. EXPERIMENTAL APPROACHES Fig.1. True...

... instrument, the stress condition of the wellbore failure was determined. In order to extend the experimental results to the real underground environment, the scale effect must be considered. Therefore, based on previous research conclusions and the results of laboratory experiments on sand production...

... fracture characterization information reservoir characterization upstream oil & gas laboratory hydraulic fracture experiment artificial intelligence plane fracture network shear stress peak shear strength criterion roughness magsipoc hydraulic fracturing intersection plane...