Results 61 to 70 of about 11,928 (225)

Microemulsion‐Based Drilling Fluids Incorporating Seashell Residue Powder: A Sustainable Approach to Fluid Loss Control

Journal of Surfactants and Detergents, EarlyView.
Two microemulsion‐based drilling fluids incorporating SSRP were formulated using pine oil, the nonionic surfactant Alkonat L100W, and a glycerol/water solution. The results provide valuable insights into how surfactant‐assisted microemulsion systems can be engineered to enhance the performance and eco‐efficiency of drilling fluids.
Luara Ribeiro Viana, Raphael Ribeiro da Silva, João Pedro Gonçalves de Souza Soares, José Cavalcante de Queiroz Neto, Maria Eduarda Araújo Pessoa, Rafael Peixoto Alves, Fabiola Dias da Silva Curbelo   +6 more
wiley   +1 more source

A Formation Inversion Algorithm Based on Collaborative Fuzzy Gradient Neural Dynamics for Natural Gamma Logging While Drilling

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT A formation inversion algorithm with real‐time performance and accuracy is crucial for natural gamma logging while drilling (LWD). However, traditional inversion algorithms are often limited by high computational resource consumption and insufficient accuracy.
Juntao Liu, Ruoxiao Liu, Wenxin Li, Zhenming Su, Long Jin   +4 more
wiley   +1 more source

Study on the Vertical Stability of Drilling Wellbore under Optimized Constraints

Applied Sciences
With the development of coal resource extraction and wellbore construction proceeding towards deeper depths, the stability of drilling wellbore structures has become increasingly severe, even posing a barrier to the use of drilling method technology in ...
Ruixue Pan, Jimin Liu, Hua Cheng, Haixu Fan   +3 more
doaj   +1 more source

Mechanical properties and wellbore stability of the oil shale formation in the Shahejie Formation [PDF]

Oil Shale
Significant progress has been made in the exploration and development of oil shale in Sinopec’s K-II block. However, frequent downhole blockages, drilling incidents, and wellbore instability have posed challenges for high-inclination horizontal ...
Shuang Du, Houbin Liu, Shuai Wang, Shuai Cui, Jingyang Xi   +4 more
doaj   +1 more source

A review of oil well cement alteration in CO2-rich environments [PDF]

, 2018
The purpose of this study is to examine previous works undertaken that characterise the cement alteration due to its exposure to CO2-bearing fluids attacking on the interfaces of cement-rock and cement casing, or through cement cracks, and the cement ...
Bagheri, Mohammadreza, Ganjian, Esmaiel, Shariatipour, Seyed Mohammad   +2 more
core   +1 more source

A Call to Industry: Unearthing Synergies in Subsurface Storage Technologies

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Subsurface storage technologies (SSTs), including geological CO2 sequestration, underground hydrogen storage, compressed‑air energy storage and thermal energy storage, are emerging as a scalable route for industry to achieve the terawatt‑hour storage flexibility and permanent carbon removal that evolving energy systems demand.
Julien Mouli‐Castillo, Hanna M. Breunig, Curtis M. Oldenburg   +2 more
wiley   +1 more source

A Transient Analytical Model for Predicting Wellbore/Reservoir Temperature and Stresses during Drilling with Fluid Circulation

Energies, 2017
Accurate characterization of heat transfer in a wellbore during drilling, which includes fluid circulation, is important for wellbore stability analysis.
Bisheng Wu, Tianle Liu, Xi Zhang, Bailin Wu, Robert G. Jeffrey, Andrew P. Bunger   +5 more
doaj   +1 more source

Glycol mud improves drilling performance in Chinese fields

Journal of Petroleum Exploration and Production Technology, 2020
Growing demand for oil and gas has driven drilling activities to deep formations and complex well structures. Drilling fluid must be able to maintain wellbore integrity and thermal stability over extended drilling time.
Chang Hong Gao
doaj   +1 more source

Computational study of reservoir sand production mechanisms [PDF]

, 2019
A numerical model is developed to simulate fluid flow conditions around a wellbore and to evaluate mechanisms governing fluid flow, pressure gradients, rock failure and the ensuing sand production.
Dassault Systèmes, Kaiser PK, Knappett J, Malvern LE, Manger GE, Mayne PW, Millikan CV, Nauroy JF, Papamichos E, Papamichos E, Vermeer PA, Wang H, Wang J, Wu HC   +13 more
core   +1 more source

Unstable Drainage Dynamics During Multiphase Flow Across Capillary Heterogeneities

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract We use novel, fast 4D Synchrotron X‐ray imaging with large field‐of‐view to reveal pore‐ and macro‐scale drainage dynamics during gas–brine flow through a layered sandstone rock sample. We show that a single centimeter‐scale layer, similar in pore size distribution to the surrounding rock but with reduced connectivity, temporarily inhibits ...
C. Harris, S. Krevor, A. H. Muggeridge, M. Camilleri, S. J. Jackson   +4 more
wiley   +1 more source