Results 41 to 50 of about 16,600 (166)

Experimental Investigation of the Effects of Drilling Fluid Activity on the Hydration Behavior of Shale Reservoirs in Northwestern Hunan, China

open access: yesEnergies, 2019
The interaction between drilling fluid and shale has a significant impact on wellbore stability during shale oil and gas drilling operations. This paper investigates the effects of the drilling fluid activity on the surface and osmotic hydration ...
Han Cao   +5 more
doaj   +1 more source

A multibody dynamic model of the drilling system with drilling fluid

open access: yesAdvances in Mechanical Engineering, 2016
This article is intended to present a multibody dynamic model of the drilling system, consisting of drillstring and drilling fluid. The drillstring is a complex rigid–flexible coupling system, including rigid bodies, Euler–Bernoulli beam elements ...
Yanhui Ma   +4 more
doaj   +1 more source

Displacement Efficiency of Cementing in Eccentric Annulus with Small Clearance

open access: yesShiyou jixie, 2022
In the process of cementing in a small annular clearance,if the casing is eccentric seriously,drilling fluid might be detained in the narrow clearance of the annulus generally besides retention on both walls of the annulus.In order to improve the ...
Ma Yue   +5 more
doaj  

Drilling fluid for drilling permafrost rocks

open access: yesBulletin of the Tomsk Polytechnic University Geo Assets Engineering
Relevance. The article provides an overview of the problem of drilling wells for oil and gas in conditions of permafrost. When constructing wells for various purposes in conditions of permafrost rocks, special requirements are imposed on the selection of the optimal drilling fluid.
Alexander Ya. Tretyak   +2 more
openaire   +2 more sources

Discussion on Drilling Fluid Cooling Technology and Equipment

open access: yesShiyou jixie, 2016
Excessively high drilling fluid temperature affects not only drilling fluid performance,but also ambient temperature and service life of downhole drilling tools and steering test tools as well as the ROP and borehole stability.
Ma Qingfang
doaj  

An Environmentally-Friendly Drilling Fluid for Stabilizing Shaximiao Formation in Block Zhongjiang

open access: yesZuanjingye yu wanjingye
The Shaximiao formation during drilling has found serious borehole wall collapse and the fallen debris were difficult to be brought out of the hole. To deal with this problem, an environmentally friendly drilling fluid suitable for drilling the Shaximiao
Haixia SHAN   +3 more
doaj   +1 more source

Drilling fluid for deep water drilling.

open access: yesJournal of the Japanese Association for Petroleum Technology, 2003
In recent year, deep water drilling has become to go deeper area. It is not only oil and gas exploration, but also Methane Hydrate exploration and scientific drilling. In general, deep water drilling has a greater degree of difficulty than conventional drilling.
openaire   +2 more sources

Method of Predicting Drilling Fluid Rheology Based on Generative Adversarial Networks in Digital Twin Environment

open access: yesZuanjingye yu wanjingye
A method of predicting drilling fluid rheology based on genitive adversarial network in digital twin environment has been developed to deal with problems in laboratory measurement of drilling fluid rheology manually, such as low efficiency, high cost and
Liang GUO   +5 more
doaj   +1 more source

Polymer Drilling Fluid with Micron-Grade Cenosphere for Deep Coal Seam

open access: yesJournal of Chemistry, 2015
Traditional shallow coal seam uses clean water, solid-free system, and foam system as drilling fluid, while they are not suitable for deep coal seam drilling due to mismatching density, insufficient bearing capacity, and poor reservoir protection effect.
Peng Xu   +4 more
doaj   +1 more source

Research and Application of Drilling Fluid Cooling System for Dry Hot Rock

open access: yesEnergies
The drilling fluid cooling system is a key technology for reducing wellbore temperatures, improving the working environment of downhole equipment, and ensuring safe and efficient drilling in high-temperature wells.
Kuan Li   +4 more
doaj   +1 more source

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