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Mechanisms of Low Temperature Thickening of Different Materials for Deepwater Water-Based Drilling Fluids [PDF]

open access: yesGels
During deepwater drilling, the low mudline temperatures and narrow safe density window pose serious challenges to the safe and efficient performance of deepwater water-based drilling fluids.
Zhongyi Wang   +5 more
doaj   +3 more sources

Drift-off warning limits for deepwater drilling platform/riser coupling system

open access: yesPetroleum Exploration and Development, 2016
The drift-off dynamic model of deepwater drilling platform and riser coupling system was established. An analysis method on drift-off warning limits of deepwater drilling platform and riser coupling system was proposed, and a deepwater drilling platform ...
Xiuquan Liu, Yuanjiang Chang
exaly   +4 more sources

Research Progress on Recoil Analysis and Control Technology of Deepwater Drilling Risers

open access: yesEnergies, 2022
The deepwater drilling riser is a very important and vulnerable connection between an offshore platform and subsea wellhead. Under some certain complex marine environment and operating conditions, the offshore platform may drift beyond the safe ...
Yanbin Wang, Tian Luan
exaly   +4 more sources

Analyses and countermeasures of deepwater drilling riser grounding accidents under typhoon conditions

open access: yesPetroleum Exploration and Development, 2013
For deepwater drilling riser system facing grounding risk in the South China Sea, a mechanical analysis model of deepwater drilling riser grounding accident was established.
Xiuquan Liu   +2 more
exaly   +4 more sources

Envelopes for connected operation of the deepwater drilling riser

open access: yesPetroleum Exploration and Development, 2012
The common critical criterion and nonlinear search method were adopted for the study of connected operation envelopes of deepwater drilling riser and a riser-wellhead-conductor integral finite element model was established.
Yuanjiang Chang   +2 more
exaly   +4 more sources

Parameters optimization in deepwater dual-gradient drilling based on downhole separation

open access: yesPetroleum Exploration and Development, 2019
To ensure safe drilling with narrow pressure margins in deepwater, a new deepwater dual-gradient drilling method based on downhole separation was designed.
Tao Huang
exaly   +3 more sources

Research Status of Deepwater Drilling Fluid on Artificial Intelligence [PDF]

open access: yesE3S Web of Conferences, 2022
The potential benefits of creating intelligence are huge, Oil, as the world’s main energy material, is an important energy that relates to the national economy and people’s livelihood.
Sui Dianjie   +4 more
doaj   +2 more sources

An Amphiphilic Multiblock Polymer as a High-Temperature Gelling Agent for Oil-Based Drilling Fluids and Its Mechanism of Action [PDF]

open access: yesGels, 2023
Oil-based drilling fluids are widely used in challenging wells such as those with large displacements, deepwater and ultra-deepwater wells, deep wells, and ultra-deep wells due to their excellent temperature resistance, inhibition properties, and ...
Yinbo He   +7 more
doaj   +2 more sources

Simulation and Analysis of Multiphase Flow in a Novel Deepwater Closed-Cycle Riserless Drilling Method With a Subsea pump+gas Combined Lift

open access: yesFrontiers in Physics, 2022
Recently, deepwater resource exploration has grown rapidly. Because the conditions of marine environment and seabed geology are more complex, deepwater drilling needs to numerous confront challenges, such as more complicated wellbore situations, low ...
Jintang Wang   +13 more
doaj   +1 more source

Development and application of transient gas‐liquid two‐phase flow model considering sudden density change

open access: yesEnergy Science & Engineering, 2020
In deepwater drilling, accurate prediction of wellbore gas‐liquid two‐phase flow behavior is significant for gas kick detection and well‐control treatment.
Jiangshuai Wang   +5 more
doaj   +1 more source

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