... Abstract Coning is the mechanism describing movement of water from an aquifer and/or gas from gas-cap into the perforations of a producing well. The interface between the fluid phases deforms into a cone shape if the reservoirs are relatively homogeneous. In fractured reservoirs, water/gas...

... Abstract Multi-fractured horizontal wells have been an admirable completion technique for unconventional resources such as in Tuscaloosa Marine shale (TMS) and Eagle Ford Shale (EFS) plays located in the United States. Studies have shown that the productivity of multi-fractured wells...

... Abstract The development of shale plays requires accurate forecasting of production rates and expected ultimate recoveries, which is challenging due to the complexities associated with production from hydraulically fractured horizontal wells in unconventional reservoirs. Traditional empirical...

... Abstract In this work, a robust and pragmatic method has been developed, validated, and applied to describe two-phase flow behaviour of a multifractured horizontal well (MFHW) in a shale gas formation. As for a fracture subsystem, its permeability modulus, non-Darcy flow coefficient...

... for traditional RTA. However, the model is not limited to fixed known relationships of pressure and rates that are applicable only under certain assumptions (e.g. planar fractures, single-phase flowing conditions etc.). Complex, non-uniform fractures, and multi-phase flow of fluids do not follow the same...

... Abstract Nowadays, the only economic and effective way to exploit shale reservoirs is multi-stage fracturing of horizontal wells. The backflow after fracturing affects the damage degree of a fracturing fluid to a formation and fracture conductivity, and directly influences a fracturing outcome...

... Abstract A workflow for data analysis and model development for accurate prediction of the gas production from a Marcellus shale horizontal well with multiple hydraulic fracture stages was developed and implemented. The available data from a Marcellus shale horizontal well were collected...

... reservoirs result in production from several scale-dependent fluid flow and storage systems, or depletion systems, that combine to contribute to the total production. These depletion systems can include matrix level features defined by pore size, natural fracture systems within the matrix, and hydraulic...

... Abstract Horizontal drilling and multistage hydraulic fracturing applied in shale formations over the past decade. Economic productivity was achieved by generating a large fracture surface area. The cluster spacing was considered up to 700 ft in Barnett and Bakken shale formations. At this time...

...). An actual CSS well case history is used. This study shows there to be a wide range of diatomite steam zone injection conditions that do not cause parting or fracturing of the diatomite by steam. The real -time Hall plots used to continuously track and monitor safe CSS steam injection also provide valuable...

... by vertical migration through natural fracture networks. Previous work has identified the presence of natural fracture systems within the Bakken that may be creating flow networks between stratigraphic layers. Numerous flow simulation models of the NE Elm Coulee were constructed to determine the source...

... the potential for recovery. For source rocks, hydraulic fracturing can substantially enhance productivity. But effectiveness of this process depends on many parameters including, number of hydraulic fracture stages, space between stages and hydraulic fracture geometries. In tight carbonate formations...

... Due to the complexity of the shale structure, serious difficulties are still facing the industry to comprehend the relation between the shale formations and the induced hydraulic fracture. These challenges increase with the heavy presence of natural fractures. The lamination of shale rocks...

... ϕ m is the matrix porosity and c t is the total compressibility. The shape factor was expressed as: 4 N ( N + 2)/ L 2 where N is the number of sets of fractures and L is the characteristic length of the matrix block. The application of Warren and Root's formulation found great...

... to identify a depth and azimuth for a horizontal producer well that would enable deep conducting fractures for an efficient production. Identification of an intelligent depth and azimuth is based on the available information obtained from the logging and interpretation of data collected in a vertical pilot...

... The EDFM+DPDK workflow comprises automated steps to enable ensemble application to capture subsurface uncertainties, especially those related to fractures that are captured via multiple discrete fracture network (DFN) realizations with heterogeneous properties. Specific steps include the embedded...

... control asset and portfolio management drilling operation upstream oil & gas reservoir characterization artificial intelligence hydraulic fracturing pressure transient testing drillstem testing reservoir simulation sustainability petroleum engineering engineering discipline engineer...

... shale depleted reservoir pipe directional drilling horizontal section exhibition horizontal well reservoir petroleum engineer scenario reduction wellbore fracture Introduction Due to the high energy demand and economic promising reserve, depleted reservoirs became a very important...

... the three most prominent features in the shale reservoirs, including shale matrix, natural fractures, and hydraulically induced fracture. Shale cores with dimensions of 1 inch in diameter and approximately 1.5 inch in length were used in all experiments. The impact of CO 2 soaking time and soaking pressure...

... Conducting the cryogenic treatment (thermal shocking) on a rock sample results in creating thermal stress on the rock's surface and existing cracks faces, which may cause creation of new fractures and/or extension of available cracks inside the rock sample yielding higher permeability...