... separately from the nanopore region. The CBW accounts for about 10-20% of nano pores. The permeability of the reservoir is increased by micro fractures to darcy order in maximum, as implied by comparison between XCT observation and air permeability. The presence of the micro fractures is hard to distinguish...

... geologist sedimentary rock plate tectonics structural geology well logging production control fracture geochemistry drilling-induced fracture reservoir characterization formation evaluation symposium geological facies lithology university advanced borehole image display wellbore...

...The 28th Formation Evaluation Symposium of Japan, September 13-14, 2023 WATER-ASSISTED CO2 FRACTURING OF VOLCANIC ROCKS UNDER GEOTHERMAL CONDITIONS Kohei Takuma 1, Yuto Watanabe 1, Kiyotoshi Sakaguchi 1, Jiajie Wang 1, Kazumi Osato 2, Amane Terai 3, Noriaki Watanabe 1 1. Tohoku University 2...

... fracturing is usually designed to so lve the problem. Horizontal well drilling is extremely difficult due to high heterogeneity and uncertain fault and fractures. The reservoir quality and completion quality vary along the borehole, and as a result, it is very difficult to optimize the stimulation design...

...The 28th Formation Evaluation Symposium of Japan, September 13-14, 2023 APPLICATION OF NEW TECHNOLOGY ON EFFECTIVE SECONDARY PORE AND FRACTURE EVALUATION IN SINIAN DENGYING DOLOMITE FORMATION, SICHUAN BASIN Xiaoxin Wang1, Juzheng Li1, Jing Mo2, Xiaolin Ma1, Ke Yan1, Dali Wang2, Yue Wang2 1...

... the performances in shale reservoirs. White oil type simulator is considered representative to model the phase behavior of gas-condensate system, while multi permeability can deal the fluid flow in any number of fractures and matrixes. Then, the multi-permeability, white oil type reservoir simulator, which...

... Abstract The interpretation of natural fractures is the utmost importance for identifying flow zones in geothermal reservoir characterization. The high-resolution resistivity borehole image log can resolve reservoir fracture and sedimentary features down to 0.2-in.However, it reflects wellbore...

... in the form of vugs, caves and fractures that account for most of the porosity seen in core. However, distribution of the dissolution features and fractures is not uniform. Borehole images can be used to clearly identify and analyze these features to determine hydrocarbon storage potential. Various attributes...

... permeability, where the traditional methods are hydraulic and chemical stimulations. However, hydraulic stimulation gives rise to a concern of induced seismicity because it may induce seismic shear slip of a sizable natural fracture. On the other hand, chemical stimulation, which uses strong mineral acids...

... report the preliminary results of numerical simulation on the hydraulic stimulation response at this candidate site. We first design the discrete fracture network for the region of 1200×800×800 m volume, which includes approximately 2000 fractures. Then we explore the responses during hydraulic...

... ABSTRACT This study is aimed to discuss the feasibility of a new utility of the combination of mini-frac test and acoustic emission (AE) monitoring for the identification and delineation of pre-existing fault/fracture with exceptionally high permeability in the vicinity of the well...

... ABSTRACT Our previous studies on hydraulic fracturing in granite at 200°C to 450°C under triaxial stress condition revealed that infiltration of low-viscosity water at near-/super-critical temperatures stimulates preexisting microfractures and creates dense fracture networks which is favorable...

... ABSTRACT Although the reservoir simulation is widely utilized to predict geothermal reservoir performances, the results of the simulation are sometimes different from those actually observed in field operations due to non-equilibrium conditions and poor modeling of fracture system. Therefore...

... fracture permeability. This paper focuses on the scale problem of the vein size, and has the potential to increase the accuracy of vein characterization. The dolomite veins were studied in both core and image log over a12 meter interval at a well one kilometer away from the tested well. Total numbers...

...The 23rd Formation Evaluation Symposium of Japan, October 11-12, 2017 -1- Development of a Three-Dimensional, Three-Phase, Quadruple-Porosity/Quadruple-Permeability White Oil Type Simulator with Embedded Discrete Fracture Model for Predicting Shale Gas/Oil Flow Behavior Takuto Sakai1 and Masanori...

... Abstract Fracture is fluid pathway of oil, natural gas and highly relates to structural trap. Depending on reservoir conditions, fracture can work as seal layer and also leak pathway. Thus, the structural properties of fracture have a great influence on the permeability. Permeability...

...The 22nd Formation Evaluation Symposium of Japan, September 29 - 30, 2016 -1- HYDRAULIC FRACTURES DELINEATED BY A RELATIVE MICROSEISMIC MULTIPLETS HYPOCENTER IMAGING TECHNIQUE: A CASE OF SINGLE WELL MONITORING AT EAGLE FORD SHALE FIELD Yusuke Kumano 1 and Tetsuya Tamagawa 1 1. JAPEX Co., ltd...

...The 22nd Formation Evaluation Symposium of Japan, September 29 - 30, 2016 -1- PREMATURE SCREENOUT CAUSED BY MULTIPLE FRACTURES - EFFECT OF SHEAR DILATION ON NATURAL FRACTURES AND FLUID VISCOSITY - Tetsuya Tamagawa 1 and Kimio Watanabe 2 1. JAPEX Technical Division Research Center 2. Renergies Ltd...

... are approximately 8 and 3 kHz, respectively. The main objectives of BARS are to image caprocks for confirmation of geosteering and well placement, to observe extensions of fractures for efficient production of gas and oil, and to find other wells for avoiding hazardous situations. The event signals used for imaging...

... Abstract A hydraulic fracturing simulator for modeling a primary tensile fracture propagation interacting with a natural fracture system has been developed. In the simulator, the primary fracture is modeled by small segments aligned along the direction of maximum horizontal stress...