Artificial neural network model for predicting the density of oil-based muds in high-temperature, high-pressure wells

OE Agwu, JU Akpabio, A Dosunmu - Journal of Petroleum Exploration and …, 2020 - Springer
In this paper, an artificial neural network model was developed to predict the downhole
density of oil-based muds under high-temperature, high-pressure conditions. Six …

Multiphase flow modeling of gas intrusion in oil-based drilling mud

B Sun, W Fu, N Wang, Z Wang, Y Gao - Journal of Petroleum Science and …, 2019 - Elsevier
As the oil-based drilling mud is widely used in the development of oil and gas in deep water,
how to model gas intrusion in the oil-based drilling mud accurately becomes a key issue for …

Mitigating Gas-in-Riser Rapid Unloading for Deepwater-Well Control

Z Yuan, D Morrell, P Sonnemann… - SPE Drilling & Completion, 2017 - onepetro.org
In deepwater wells, if gas comes into the riser, a rapid unloading event may occur if removal
of the gas is not carried out properly. Oil-based muds (OBMs) present an even greater …

Modeling the downhole density of drilling muds using multigene genetic programming

OE Agwu, JU Akpabio, A Dosunmu - Upstream Oil and Gas Technology, 2021 - Elsevier
The main objective of this paper is to use experimental measurements of downhole
pressure, temperature and initial mud density to predict downhole density using multigene …

An experimental study of gas influx in oil-based drilling fluids for improved modeling of high-pressure, high-temperature wells

A Torsvik, JO Skogestad, H Linga - SPE Drilling & Completion, 2017 - onepetro.org
Oilfield exploration in extreme areas represents additional requirements for drilling-fluid
performance and hydraulic models for well control. In general, there is little knowledge about …

[HTML][HTML] The behaviors of gas-liquid two-phase flow under gas kick during horizontal drilling with oil-based muds

Y Su, H Ma, J Guo, X Shen, Z Yang, J Wu - Petroleum, 2024 - Elsevier
Natural gas is easily soluble in oil-based muds (OBM), leading to complex flow behavior in
wellbores, especially in horizontal wells. In this study, a new transient flow model …

Steady-state Analytical Reservoir Pressure and Temperature Solutions during Hydrogen Refueling to Environment-friendly Ships from Offshore Underground Storage

M Jang, J An - Geoenergy Science and Engineering, 2023 - Elsevier
As hydrogen (H 2) conserves intermittent electricity from renewable energies, H 2-fueled
ships are overlooked for carbon emission reduction. H 2-fueled ships require offshore …

[PDF][PDF] Two-phase simulation of well control methods for gas kicks in case of water and oil-based muds

Y Jahanpeyma, S Jamshidi - Journal of Petroleum Science and …, 2018 - jpst.ripi.ir
Kick occurrence is a possible event during a drilling process. It is required to be handled
immediately using a well control method to avoid blowout, financial losses and damages to …

Well control incident in the North Sea as interpreted with advanced gas influx modelling

JO Skogestad, KS Bjørkevoll, J Frøyen… - SPE/IADC Drilling …, 2019 - onepetro.org
Abstract Objectives/Scope Handling well control incidents during drilling operations safely
and efficiently is of crucial importance, due to the potential danger to crew, rig and …

Mathematical modeling of oil and gas kick during drilling operations

F Zachopoulos, N Kokkinos - AIP Conference Proceedings, 2023 - pubs.aip.org
The current study aims to provide the modern techniques to mathematically describe and
model a potentially disastrous event called" Kick". A kick might occur during oil and gas …