Results 71 to 80 of about 183,054 (220)

Radial Filtration of Drilling Muds [PDF]

, 1940
Milton Williams
openalex   +1 more source

Research on Composite Bit Technology for Hard Formations and Its Application in Igneous Rock [PDF]

arXiv
The igneous rocks in deep formation have the characteristics of hardness, poor drillability and high abrasiveness, which is a difficulty in speeding up drilling. The drilling efficiency of existing conventional bits is low in igneous rocks. Based on the characteristics of igneous rocks, rock mechanical parameters and drillability experiments of granite,
arxiv  

Application of Machine Learning to accidents detection at directional drilling [PDF]

arXiv, 2019
We present a data-driven algorithm and mathematical model for anomaly alarming at directional drilling. The algorithm is based on machine learning. It compares the real-time drilling telemetry with one corresponding to past accidents and analyses the level of similarity.
arxiv  

Radial Filtration of Drilling Mud [PDF]

, 1952
C.L. Prokop
openalex   +1 more source

The Effect of Drill Design Elements on Drilling Characteristics when Drilling Bone

Journal of Biomechanical Science and Engineering, 2010
Twist drills are often used to prepare implant sites for the internal fixation of fractures, and the stability of the fixation, which depends directly on how securely the implants are held, depends on the quality of the bone around the pilot holes after implant site preparation.
Toshiaki Hara, Tadamaru Ueda, Kenichi Hasegawa, Yasuyuki Endo, Takanori Hasegawa, Yoshihiro Takikawa, Atsushi Wada   +6 more
openaire   +4 more sources

Effects of Input Parameters on the Hole Quality During the Drilling of Al Metal Matrix Composites

Designs
The extensive industrial applications of aluminum (Al) metal matrix composites (MMCs) require optimal drilling conditions in the manufacturing industries.
Alokesh Pramanik, Animesh Kumar Basak
doaj   +1 more source

Record of deep-well drilling for 1904 [PDF]

, 1905
Myron L. Fuller, Samuel Sanford
openalex   +1 more source

The influence of speed drills upon the rate and the effectiveness of silent reading. [PDF]

, 1917
Charles W. Peters
openalex   +1 more source

Data-driven model for the identification of the rock type at a drilling bit [PDF]

arXiv, 2018
Directional oil well drilling requires high precision of the wellbore positioning inside the productive area. However, due to specifics of engineering design, sensors that explicitly determine the type of the drilled rock are located farther than 15m from the drilling bit.
arxiv  

Bone-Drilling in the Neighbourhood of Inflamed Joints and Elsewhere [PDF]

, 1890
N. Smith
openalex   +1 more source