Results 91 to 100 of about 532 (178)

Rock Classification Using Multivariate Analysis of Measurement While Drilling Data: Towards a Better Sampling Strategy [PDF]

, 2018
Measurement while drilling (MWD) data are gathered during drilling operations and can provide information about the strength of the rock penetrated by the boreholes.
Eidsvik, Jo, Jo Eidsvik, Veena S. Vezhapparambu, Sajith Vezhapparambu, Veena, Ellefmo, Steinar Løve, Steinar L. Ellefmo   +5 more
core   +1 more source

Subsurface Characterization of Coastal Deposits using Measurement While Drilling [PDF]

Measurement While Drilling (MWD) is a promising in situ test method that has gained increasing popularity in recent years. MWD can continuously characterize the subsurface while drilling any type of borehole in soil or rock without interfering with ...
Pelham, K., Carr, A., Benoît*, J., Regan, J., Buerkle, C., Souza, B.   +5 more
core  

Establishing relationships between structural data from close-range terrestrial digital photogrammetry and measurement while drilling data

, 2020
Geologists, mine planners, geotechnical, and mining engineers always strive for maximum information to get a better insight of the rock mass before interacting with it.
Gustafson, Anna, Gustafson, Anna,, Johansson, Daniel,, Schunnesson, Håkan,, Johansson, Daniel, Liaghat, Samaneh, Manzoor, Sohail,, Schunnesson, Håkan, Liaghat, Samaneh,, Manzoor, Sohail   +9 more
core   +1 more source

Measurement While Drilling (MWD) technology for blasting damage calculation [Elektronisk resurs]

, 2018
For all underground excavations it is important to reduce both blasting induced damage and the blast-induced Excavation Damage Zone (EDZ). Except for the operational parameters, the geomechanical conditions of the rock mass have a significant impact on ...
Johansson, Daniel,, Schunnesson, Håkan,, Saiang, David,, van Eldert, Jeroen,   +3 more
core  

Directional Underbalanced Drilling Success With Up to 40% Nitrogen Using Mud-Pulse MWD and Rotary Steerable Technology

, 2017
This paper describes the successful use of mud-pulse Measurement While Drilling (MWD) and Rotary Steerable directional systems (RSS) in an Underbalanced Drilling (UBD) environment utilising up to 40% nitrogen.
Ken Sudron, Lee Dolman
core   +1 more source

Application of rotary geosteering drilling in deep and thin reservoirs of Tarim Basin, NW China

Petroleum Exploration and Development, 2013
Geological features, such as deep and thin reservoirs and unstable structure margin, occur in an oilfield of the Tarim Basin. To deal with these problems while drilling, a rotary geosteering drilling technique was introduced.
Chengguang ZHANG, Qianli WU, Xiaoliang WANG, Ning LÜ   +3 more
doaj   +1 more source

Is While-Drilling True Vertical Depth True?

, 2017
The objective for drilling development wells is to penetrate the target reservoir, maximize recovery, and ensure maximum production. Determining accurate true vertical depth (TVD) in real time is essential to achieving these objectives in thin reservoirs.
Hakim Rachi, Yousef Al Katheeri, Mahmoud ElGizawy, Jamal Al Noukhatha, Brad Hargreaves, Natalia Androsovich, Nashat Abbas, Saleel Koakkadan   +7 more
core   +1 more source

Drilling azimuth gamma embedded design

MATEC Web of Conferences, 2016
Embedded drilling azimuth gamma design, the use of radioactive measuring principle embedded gamma measurement while drilling a short section analysis. Monte Carlo method, in response to the density of horizontal well logging numerical simulation of 16 ...
Zhou Yi Ren, Qiu Xiao Lin, Guo Zhi Qiang, Zhang Jian Hui   +3 more
doaj   +1 more source

Improving Data Quality with Advanced Pre-Processing of MWD Data

Geotechnics
In geotechnical engineering, an accurate prediction is essential for the safety and effectiveness of construction projects. One example is the prediction of over/under-excavation volumes during drill and blast tunneling.
Alla Sapronova, Thomas Marcher
doaj   +1 more source

Application of Measurement While Drilling Technology to Predict Rock Mass Quality and Rock Support for Tunnelling

, 2020
A tunnelling project is normally initiated with a site investigation to determine the in situ rock mass conditions and to generate the basis for the tunnel design and rock support. However, since site investigations often are based on limited information
Johansson, Daniel,, Schunnesson, Håkan,, Saiang, David, Saiang, David,, Johansson, Daniel, van Eldert, Jeroen,, Schunnesson, Håkan, van Eldert, Jeroen   +7 more
core   +1 more source