Modeling surge pressures during tripping operations in eccentric annuli
The aim of this paper is to present a new numerical model to study the drilling fluid flow
through eccentric annulus during tripping operations and to investigate the effect of the …
through eccentric annulus during tripping operations and to investigate the effect of the …
Simplified surge pressure model for yield power law fluid in eccentric annuli
M Tang, R Ahmed, R Srivastav, S He - Journal of Petroleum Science and …, 2016 - Elsevier
Axial movement of drillstring during drilling operations causes downhole pressure
variations, which are commonly known as surge and swab pressures. This paper presents a …
variations, which are commonly known as surge and swab pressures. This paper presents a …
Explicit flow velocity modelling of yield power-law fluid in concentric annulus to predict surge and swab pressure gradient for petroleum drilling applications
Exact prediction and controlling of surge/swab pressure are required during drilling of
hydrocarbon reservoirs and other geological formations that often leads to well control …
hydrocarbon reservoirs and other geological formations that often leads to well control …
Abnormal down hole pressure variation by axial stick-slip of drillstring
Downhole pressure variation is generally believed to be a kind of surge and swab pressure
due to the axial movement of drillstring during the tripping in/out operation, and even wave …
due to the axial movement of drillstring during the tripping in/out operation, and even wave …
Prediction of downhole pressure while tripping
A Mohammad, S Karunakaran… - 2022 14th …, 2022 - ieeexplore.ieee.org
During drilling operations for oil and gas, swab and surge pressure occur while tripping in
and out of a wellbore. High tripping speed can lead to fracturing the well's formation …
and out of a wellbore. High tripping speed can lead to fracturing the well's formation …
Simplified predictive model for downhole pressure surges during tripping operations using power law drilling fluids
Surge/swab pressure is a crucial parameter that provokes well-control problems such as
fluid loss, fractured formations, fluid influx, and kick. Thus, a precise estimation of differential …
fluid loss, fractured formations, fluid influx, and kick. Thus, a precise estimation of differential …
Experimental evaluation of surge/swab pressure in varying annular eccentricities using non-Newtonian fluid under Couette-Poiseuille flow for drilling applications
Global energy demand is rapidly increasing at a rate of 8% between 2004 and 2019, and
conventional energy sources are unable to meet this requirement. Therefore, the oil and gas …
conventional energy sources are unable to meet this requirement. Therefore, the oil and gas …
A new model for computing surge/swab pressure in horizontal wells and analysis of influencing factors
M Tang, J Xiong, S He - Journal of Natural Gas Science and Engineering, 2014 - Elsevier
In the drilling of horizontal wells in complex formations such as subsalt fractural formation,
factors such as high drilling liquid density, rheological uncontrollability, and narrow safety …
factors such as high drilling liquid density, rheological uncontrollability, and narrow safety …
微流量控压钻井中节流阀动作对环空压力的影响
孔祥伟， 林元华， 邱伊婕 - 石油钻探技术, 1900 - syzt.com.cn
为解决窄安全密度窗口的复杂压力剖面问题, 基于质量守恒方程及动量守恒方程,
建立了节流阀动作引发的环空波动压力模型, 并应用中心差分法对模型进行了求解. 研究表明 …
建立了节流阀动作引发的环空波动压力模型, 并应用中心差分法对模型进行了求解. 研究表明 …
A new model for predicting dynamic surge pressure in gas and drilling mud two‐phase flow during tripping operations
X Kong, Y Lin, Y Qiu, H Zhu, L Dong… - Mathematical Problems …, 2014 - Wiley Online Library
Investigation of surge pressure is of great significance to the circulation loss problem caused
by unsteady operations in management pressure drilling (MPD) operations. With full …
by unsteady operations in management pressure drilling (MPD) operations. With full …