Results 121 to 130 of about 945,774 (394)

AGNI-DRILL - A COMPLEX DRILLING FLUID FOR DRILLING IN KYNOVSK MUDSTONES

open access: yesOil and Gas Studies, 2016
Oil pools developed by PJSC «Tatneft» are mainly confined to the Devonian deposits, the top of which is represented by Kynovsk argillites. The construction of a horizontal wellbore in the Upper Devonian terrigenous strata (D0) is complicated by the geological structure of this complex, which leads to complications related with maintaining aborehole ...
S. I. Golyb, R. A. Usmanov, L. B. Huzina
openaire   +3 more sources

Offshore Drilling and Energy Conservation: The Relative Impact on Gas Prices [PDF]

open access: yes
This issue brief compares projected savings from drilling in presently restricted offshore zones and savings if the nation had continued adjusting fuel efficiency standards at 1980-1985 rates.
Dean Baker, Nichole Szembrot
core  

Minimization of tool path length of drilling process using particle swarm optimization (PSO) [PDF]

open access: yes, 2020
In the era of challenging economic, the industry in our country has been forced to produce a good quality product and increase the productivity of machining process simultaneously in order to compete with other countries.
Abdullah, Haslina   +5 more
core  

Nanofillers Reinforcing Biopolymer Composites for Sustainable Food Packaging Applications: A State‐of‐the‐Art Review

open access: yesAdvanced Functional Materials, EarlyView.
Biopolymers are sustainable, biodegradable alternatives to petroleum‐based plastics for food packaging. Its adoption is often limited by poor mechanical strength, barrier properties, and improved thermal stability through the incorporation of nanofillers.
Himakshi Baishya   +2 more
wiley   +1 more source

Laboratory research on degradable drilling-in fluid for complex structure wells in coalbed methane reservoirs

open access: yesPetroleum Exploration and Development, 2013
In order to address the contradiction between drilling safety and coalbed damage control, a degradable drilling-in fluid (DIF) was developed for complex structure wells in coalbed methane (CBM) reservoirs.
Dawei LIU   +5 more
doaj   +1 more source

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

open access: yesJournal 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   +6 more
openaire   +4 more sources

Test well exploration in the Myakka River Basin area, Florida [PDF]

open access: yes, 1967
In recent years, difficulties encountered in obtaining ground-water supplies with acceptable chemical characteristics in the Myakka River basin area led to the implementation of a test drilling program.
Joyner, B. F., Sutcliffe,, H.
core  

Transforming Cellulose Into Functional Three‐Dimensional Structures

open access: yesAdvanced Functional Materials, EarlyView.
Cellulose is promising for replacing synthetic polymers due to its excellent mechanical properties and low cost. This review highlights the recent advancements in transforming cellulose into functional 3D structures, including liquid gels and porous materials.
Xia Sun   +5 more
wiley   +1 more source

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