... Abstract This work presents the approaches used for the optimal placement and determination of parameters of hydraulic fractures in horizontal and multilateral wells in a low-permeability reservoir using various methods, including 3D modeling. The results of the production rate...

... matching of coupled "wellbore-hydraulic fracture" model describing well start-up and fracture clean-up. The conclusion is made about the impact of rheological and geomechanical factors on the well cumulative production andfracture conductivity.The results are generalized for four wells of the field...

... (1) q=q o × 1-X D a q Abstract Requirements of targeted optimization are imposed on the hydraulic fracturing operations carried out in the conditions of borderline economic efficiency of fields taking into account geological and technological features...

... Abstract The article describes an approach to creating, in conditions of limited input information, a strategy for performing the first hydraulic fracturing operations on deviated and horizontal wells in the A. Zhagrin field. The field is in the active phase of exploration, the planned count...

... to maintain and even increase the oil production levels. Based on successful international experience, Russian oil and gas companies use horizontal wells (HW) with multi-stage hydraulic fracturing (MSHF) for the cost-effective development of low-permeable reservoirs. Thus, since the first pilot works...

..., presumably of reef genesis, with variable thickness laterally (from 20 to 100 meters). Abstract With the development of drilling and well completion technologies, multi-staged hydraulic fracturing (MSF) in horizontal wells has established itself as one of the most effective methods for stimulating...

..., which, in turn, is associated with an accumulation of pressure inside the hydraulic fracture. Thus, use of low-viscosity fracturing fluids helps to keep pressure inside fracture at a sufficiently low level. However, use of low-viscosity fluids, including non-polymer ones, is often associated with a high...

... Abstract In-Situ Channelization (ISC) phenomenon comprises a segregation of proppant and fiber-laden slurry in a hydraulic fracture during fracture closure. The segregation can lead to the creation of highly conductive open channels in the proppant pack and can significantly alter the fracture...

..., and an arbitrary number of kinetically controlled heterogeneous and homogeneous chemical reactions. Moreover, the models take into account the non-Newtonian rheology of diverters and the thermal effects during chemical reactions. The geometry of the well and hydraulic fractures can be explicitly resolved on 3D...

... Abstract Hydraulic fracturing as an approach of oil and gas recovery intensification in clastic formations has long been well known and recognized from technological and economical sides. However, in spite of the obvious advantages of hydraulic fracturing procedure, the method has its drawbacks...

... In wells with drilled couplings, the initiation of a fracture in a single-stage hydraulic fracturing occurs in the most developed zone of the horizontal well - point T1. This methods allowed to restore the productivity and fluid flow in the wells in the period 2015-2017. With this approach...

... the purpose of economic and effective exploitation. In view of the above problems, an enhanced hydraulic fracturing technology (EHFT) which has been verified and applied is proposed to increase effective SRV. according to the different characteristics of shale reservoir, EHFT optimizs the performance...

... hydraulic fracturing machine learning fracturing materials shale gas production monitoring production logging fracturing fluid directional drilling multistage fracturing flow rate assessment adjustment hydraulic fracture complexity marker diagnostic fracture drilling operation complex...

... with petrophysical, geological, geomechanical and dynamic modelling. The article presents the results of multivariant calculations of hydraulic fracturing design dynamic modelling with and without natural fractures depending on the well placement, length and orientation of the horizontal well, geometry of hydraulic...

... Abstract Hydraulic fracture complexity in unconventional formations, such as shales, has been predominantly associated with the interaction of hydraulic fractures with pre-existing natural fractures. In this study, we demonstrate a novel experimental evidence that shows complex fractures can...

... Abstract An approach to determine stress field near wellbore with existing hydraulic fracture accounting for rising pressure and fluid filtration along the crack has been developed. An estimations of secondary fracture initiation time near wellbore as well as moment of primary crack growth...

... Abstract At the pilot area of the oilfield in the Khanty-Mansi Autonomous Okrug, pilot works are being carried out to increase the development efficiency of low-permeability reservoirs using horizontal production and injection wells with transverse multistage hydraulic fractures ( A.Shurunov et...

... Abstract Currently, there is only one realizable technology for development of gas shale and tight gas formations which is based on the applying of the horizontal well systems with multi-stage hydraulic fracturing. The efficiency of shale and tight gas production using this technology...

... field is described. Reservoir of achimovsky deposits is characterized by clinoform (lenticular) structure. An optimal development scheme is choosen by multivariant geological and simulation modeling. Number of wells, length of horizontal section, quantity of stages of multistage hydraulic fracturing...

... of uneven development of the horizontal shaft length. Conventional logging methods cannot provide detailed information during the operation of hydraulic fracturing stages, but marker-based methods present a proper production logging alternative, especially given their widespread development in recent years...