Results 61 to 70 of about 11,809 (204)

An overview of hydraulic fracturing and other formation stimulation technologies for shale gas production [PDF]

, 2013
The technology of hydraulic fracturing for hydrocarbon well stimulation is not new, but only fairly recently has become a very common and widespread technique, especially in North America, due to technological advances that have allowed extracting ...
GANDOSSI Luca
core   +1 more source

Resistivity Change Mechanism in the Carbon Dioxide Sequestration Process

Energy Science &Engineering, EarlyView.
This study explores the variation law, influencing factors, and mechanisms of resistivity in the interaction between CO₂ and saltwater. This study used a hollow PEEK conductor to simulate core pores. With excellent thermal stability, mechanical strength, and electrical insulation, its homogeneous, nonporous nature eliminates interference from rock ...
Xinke Jin, Lihong Shi, Changquan Wang, Shijing Xu, Weijie Fu, Yunfei Lei   +5 more
wiley   +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

Frictional Stabilities on Induced Earthquake Fault Planes at Fox Creek, Alberta: A Pore Fluid Pressure Dilemma

, 2019
Earthquakes induced during hydraulic fracturing operations have occurred in a number of locales. However, in-situ studies aimed to discern the triggering mechanism remains exclusively statistical in their nature.
Schmitt, Douglas R., Schultz, Ryan, Shen, Luyi W.   +2 more
core   +1 more source

Research on the Mechanism of Sand Bridge Stuck Drill in Deep Coal and Rock Gas Horizontal Wells

Energy Science &Engineering, EarlyView.
Accounting for wellbore collapse debris and the bulldozer effect, this study develops models for permeable and impermeable sand bridge sticking in deep CBM horizontal wells, deriving resistance and volume formulations. Validated in Changqing, results show impermeable bridges dominate; controls (fluid optimization, staged drilling, circulation, speed ...
Cheng Hui, Yong Ouyang, Zhifeng Duan, Xiaoyue Xu, Yuxiang Teng, Mingyang Liu, Hui Zhang, Long Chen   +7 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

Study on the Law of Multi‐Fracture Propagation in Different Fracturing Fluid Viscosity

Energy Science &Engineering, EarlyView.
Samples and equipment Sample preparation Test equipment Analysis of test results Fracture propagation morphology Influence of fracturing fluid viscosity on crack initiation time/(fracture initiation pressure) Evolution law of injection pressure Cumulative relation curve of pressure–time–acoustic ABSTRACT Using the TCHFSM‐I large‐scale accurate triaxial
Zhixing Zhang, Xiang Fu, Yuedong Liu, Xiaoqiang Zhang, Yulong Jiang   +4 more
wiley   +1 more source

An overview of hydraulic fracturing and other formation stimulation technologies for shale gas production - Update 2015 [PDF]

, 2015
The technology of hydraulic fracturing for hydrocarbon well stimulation is not new, but only fairly recently has become a very common and widespread technique, especially in North America, due to technological advances that have allowed extracting ...
GANDOSSI Luca, VON ESTORFF Ulrik
core   +1 more source

Quantifying Parametric Influence on Cuttings Transport in Deviated Deep Wells Using Global Sensitivity Analysis Methods

Energy Science &Engineering, EarlyView.
Cuttings transport simulation workflow. ABSTRACT Efficient cuttings transport is essential for wellbore stability and minimizing non‐productive time in deviated and horizontal wells. This study applies global sensitivity analysis (GSA) to evaluate the influence of 14 drilling parameters on cuttings transport using WellPlanTM hydraulic simulations ...
Esraa A. Refaie, Said K. El‐Sayed, Ahmed Z. Noah, Mostafa M. Abdelhafiz   +3 more
wiley   +1 more source