Although the dynamics of proppant (small ceramic balls used to prevent opened fractures from closing on release pressure) have been subject several numerical studies over recent years, large-scale inclined exist in unconventional reservoirs for which relevant information is still missing. In present study, this problem investigated numerically considering influence factors such as fracture roug...

Multi-cluster horizontal well fracturing is one of the key technologies to develop unconventional reservoirs such as shales. However, field data shows that some perforation clusters have little production contribution. In this study, a three-dimensional (3D) numerical model for simulating multiple fracture propagation based on 3D block discrete element method was established, and considers stre...

The production of a single gas well is influenced by many geological and completion factors. aim this paper to build prediction model based on machine learning technique identify the most important factor for production. Firstly, around 159 horizontal wells were collected, targeting Duvernay Formation with detailed records. Secondly, key factors selected using grey relation analysis Pearson cor...

Gas reservoir numerical simulation is an important method to optimize the development strategy of shale gas reservoirs which has been influenced by multi-stage fracture. The regular fracture network model was used build a conventional simulation, in it difficult show true situation propagation. However, physical parameters not only affect production, but also influence stimulation effect; moreo...

Hydraulic fracture is crucial for assuring well production from unconventional reservoirs. For the optimization of hydraulic geometry and ensuing an interlayered reservoir, vertical propagation path has been analyzed. However, effective fluid channel cannot be formed if proppant unable to reach area where propagates. This paper presents a numerical model using lattice-based method investigate t...

The conductivity of supporting fractures is an important parameter to evaluate the hydraulic fracturing effect shale reservoirs, and its size affected by many factors. In this paper, proppant optimized evaluated on basis real rock slab simulation actual construction test. laboratory experimental study influence type, sand concentration, embedding fluid residue propping fracture carried out, res...

In this paper, taking Block G in Canada as an example, combined with the data of working area, Pearson–MIC comprehensive evaluation method was adopted to optimize key parameters productivity. Based on analytic hierarchy process, weight each parameter calculated, grade index “sweet spot” divided, standard sweet spot established, and distribution superimposed finally depicted. The results show th...