Results 81 to 90 of about 5,297 (218)

UFM‐Based Simulation of Competitive Multi‐Fracture Propagation in Horizontal Wells

Energy Science &Engineering, Volume 13, Issue 12, Page 6069-6083, December 2025.
Simulation schematic of Competitive Multi‐Fracture Propagation in Horizontal Wells. ABSTRACT Multi‐stage hydraulic fracturing in horizontal wells is vital for stimulating unconventional reservoirs, yet uneven fracture propagation often restricts the effective communication volume of the reservoir.
Xiaojia Xue, Minghui Li, Yanjun Zhang, Shumin Shan, Jinqi Chu, Guopeng Huang, Guangbo Lu, Fujian Zhou   +7 more
wiley   +1 more source

Study of borehole stability of volcanic rock formation with the influence of multiple factors

Journal of Petroleum Exploration and Production Technology
Borehole instability in igneous rock formation has attracted more and more attention in recent ten years. In order to understand the mechanism of wellbore instability in igneous formation, a borehole stability model is established by applying the thermal,
Mingming Zhang, Jinglin Wen, Zhiming Xu, Zhiwei Xu, Jiang Feng, Xingdong Zhao   +5 more
doaj   +1 more source

Prediction of the Optimal Drilling Mud Weight Based on the Normalized Yielded Zone Area (NYZA) in One of the Iranian Oil Fields

Walailak Journal of Science and Technology, 2013
Hole problems experienced during the drilling phase of operations are often the consequence of mechanical wellbore instability. This leads to higher than necessary drilling costs.
Mohamad HEIDARIAN, Mahin SCHAFFIE, Hosein JALALIFAR, Saeed JAFARI   +3 more
doaj   +1 more source

Geomechanical Modeling of In-Situ Stresses Around a Borehole [PDF]

, 2002
In this paper, we present a modelling of the in-situ stress state associated with the severe hole enlargement of a wellbore. Geomechanical information is relevant to assure wellbore stability, i.e., to prevent damages in the formation and later on ...
Grandi, Samantha, Rao, Rama V. N., Toksoz, M. Nafi   +2 more
core  

Data on cost analysis of drilling mud displacement during drilling operation [PDF]

, 2018
The focus of this research was to present a data article for analyzing the cost of displacing a drilling fluid during the drilling operation. The cost of conventional Spud, KCl and Pseudo Oil base (POBM) muds used in drilling oil and gas wells are ...
Dosunmu, A., Iyuke, Sunny E., Okoro, Emeka Emmanuel   +2 more
core   +1 more source

Numerical Simulations of Hydraulic Fracturing in Carbonate‐Type Hot Dry Rock Reservoirs Based on the Coupled Thermo‐Hydraulic‐Mechanical‐Damage (THMD) Model

Energy Science &Engineering, Volume 13, Issue 12, Page 5821-5834, December 2025.
ABSTRACT Hydraulic fracturing technology is widely used in Enhanced Geothermal System (EGS) projects to induce fractures and enhance the permeability of thermal reservoirs. The hydraulic fracturing process of hot dry rock (HDR) is actually a multiphysics coupling process that couples the heat transfer field, seepage field, stress field, and damage ...
Zhiyu Tan, Guoqiang Fu, Tianyu Bai, Fan Xiao, Xiaoge Wu   +4 more
wiley   +1 more source

Steadily translating parabolic dissolution fingers

, 2015
Dissolution fingers (or wormholes) are formed during the dissolution of a porous rock as a result of nonlinear feedbacks between the flow, transport and chemical reactions at pore surfaces.
Kondratiuk, Paweł, Szymczak, Piotr
core   +1 more source

Liquid‐Solid Triboelectric Nanogenerators in Physical and Chemical Sensors‐A Review

Small, Volume 21, Issue 51, December 23, 2025.
Liquid‐solid triboelectric nanogenerators (L‐S TENGs) have emerged as promising self‐powered sensors that convert liquid–solid interactions into electricity. This review highlights their working principles, recent applications in physical and chemical sensing, and performance improvements.
Xing Wang, Zhengbing Ding, Chenyao Huang, Kyungwho Choi, Dukhyun Choi   +4 more
wiley   +1 more source

Investigation of Wellbore Instability in Southern Rumaila Oil Field

Iraqi Journal of Chemical and Petroleum Engineering
This study aims to address the issue by providing valuable insights into the factors contributing to the wellbore instability and proposing effective measures to mitigate the problem in the southern part of the Rumaila oil field. A comprehensive one-dimensional mechanical earth model (1D MEM) was developed by utilizing various logs data from 4 wells ...
Ali F. Zaidan, Farqad A. Hadi, Martin Klempa   +2 more
openaire   +2 more sources

Simulation of Geological Carbon Dioxide Storage

, 2008
We modifed a streamlined-based simulator based on the work of Batycky et al. (1997) [7] to solve CO2 transport in aquifers and oil reservoirs. We then use this to propose design strategy for CO2 injection to maximise storage in aquifers and to maximise
Qi, Ran, Qi, Ran
core   +1 more source