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AuthorSleiti, Ahmad K.
AuthorTakalkar, Gorakshnath
AuthorEl-Naas, Muftah H.
AuthorHasan, Abu Rashid
AuthorRahman, Mohammad Azizur
Available date2022-09-29T06:48:43Z
Publication Date2020
Publication NameJournal of Natural Gas Science and Engineering
ResourceScopus
URIhttp://dx.doi.org/10.1016/j.jngse.2020.103391
URIhttp://hdl.handle.net/10576/34644
AbstractGas influx from reservoir into the wellbore during drilling, tripping, or other operations, is a hazard. In the early stages, the influx may be nearly undetectable, but the kick can rapidly change from a seemingly steady condition to one of extremely high flow rate. The resulting uncontrolled release of large amounts of gas on the drilling rig can ignite and explode; causing loss of life, loss of asset, and contamination of environment. A kick perturbs the system; analysis of the resulting transient flow could lead to significant improvement in timely detection of a kick. Timely detection is essential to avoid blowouts. Early detection also allows better characterization of potential blowout, allowing improved response and mitigation efforts. Early gas-kick prediction and analysis through dynamic multiphase flow can lead to significant progress in detection and controlling of High Pressure High Temperature (HPHT) drilling of deep wells, which is vital to prevent gas blowout risk. This review paper aims to provide the current state-of-the-art on the early gas-kick simulation models based on transient multiphase flow to determine the bottom hole pressure and gas kick size and to employ appropriate mitigation plans. A comprehensive literature review on early kick detection showed that the transient one-dimensional two-phase models are prominently researched considering some aspects of heat transfer, gas solubility and homogenous flows. The reported transient two-phase (G-L) flow models are found to be limited to 1-D flow with limited range of operating conditions. Future studies towards more sophisticated 2-D and 3-D simulations of transient multiphase (G-L) flow models using computational fluid dynamics (CFD) tools are recommended. 2-D and 3-D flow simulations using advanced turbulence models can potentially enhance the accuracy in the calculations of phase velocity, temperature and pressure patterns within the annuli of wellbore and can advance the early gas-kick detection process.
SponsorThis publication was jointly supported by International Research Collaboration Co Fund Grant [ IRCC-2019-012 ], Qatar University and Texas A&M University at Qatar. The findings achieved herein are solely the responsibility of the authors.
Languageen
PublisherElsevier B.V.
SubjectComputational fluid dynamics
Deep well
Gas-kick
Transient multiphase flow models
Two phase flow
TitleEarly gas kick detection in vertical wells via transient multiphase flow modelling: A review
TypeArticle Review
Volume Number80


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