Shale gas is one of the primary types of unconventional reservoirs to be exploited in search for long-lasting resources. Production from shale gas reservoirs requires horizontal drilling with hydraulic fracturing to achieve the most economic production. However, plenty of parameters (e.g., fracture conductivity, fracture spacing, half-length, matrix permeability, and porosity, etc) have high un...

Introduction Intertrochanteric fracture comprises nearly half of hip fractures occurring in elderly individuals with osteoporosis. Considering the age group of its population, they are often associated with multiple comorbidities which warrant optimum management with less surgical. Case Report This article reports the case of 56-year-old women with in tertrochanteric fracture associated with ...

An appropriate well spacing plan is critical for the economic development of shale gas reservoirs. The biggest challenge optimization interpreting subsurface uncertainties associated with hydraulic and natural fractures. Another existence complex This work applied an integrated workflow in reservoirs Sichuan Basin China both consists five components: data preparation, reservoir simulation, esti...

This paper is about designing a silicon based piezoresistive micro pressure sensor for greater sensitivity. Using Finite Element Analysis (FEA) the role played by important design parameters like the side length and the thickness of the pressure sensing membrane in determining the sensitivity of the sensor are studied in detail for a pressure of 100 kPa. The fracture stress of silicon is adopte...

Fracture healing requires two major pre-requisites; sufficient blood supply and mechanical stability [1-2]. Optimum mechanical conditions for fracture healing remain unknown, but micro-movements of the fracture fragments are significant to a developing healing callus [2-3]. This study uses Finite Element analysis to evaluate an idealized neck fracture callus, for single, and two lag screw intra...

      Many large oil and gas fields in the most productive world regions happen to be fractured. The exploration and development of these reservoirs is a true challenge for many operators. These difficulties are due to uncertainties in geological fracture properties such as aperture, length, connectivity and intensity distribution. To successfully address these challenges, it is paramount to im...

Abstract Two-phase (gas+water) flow is quite common in tight sandstone gas reservoirs during flowback and early-time production periods. However, many analytical models are restricted to single-phase problems three-dimensional fracture characteristics seldom considered. Numerical simulations good choices for this problem, but it time consuming gridding simulating. This paper presents a comprehe...

Zhong18 wellblock of Fengcheng oilfield developed with low permeability interlayer and had strong heterogeneity, which caused steam chamber conventional assisted gravity drainage (SAGD) process cannot extend lengthwise continuously serious heat loss. To address this problem, a method acid fracturing SAGD is proposed to enhance the oil improve recovery. Based on herringbone well being used in we...

Fiber reinforcement is widely used in construction engineering to improve the mechanical properties of soil because it increases the soil's strength and improves the soil's mechanical properties. However, the mechanical properties of fiber-reinforced soils remain controversial. The present study investigated the mechanical properties of silty clay reinforced with discrete, randomly distributed ...