Gas Kick Simulation Study for Horizontal Wells

Abstract

This paper presents a gas kick simulation model for horizontal and conventional wells. The model is based on the solution of the appropriate mass and pressure balance equations. The unique aspect of this model is the coupling of the fluid flow in the horizontal section with the gas influx from the formation. Two particular kick control scenarios are presented. The simulation results demonstrate that the actual horizontal drilling situation, actions taken immediately upon kick detection, and operations during kick development all have an effect on the development of the kick profile along the wellbore, which in turn has significant impact on the pressure build-up during the shut-in period and the subsequent kick circulation operations.

Well Control Simulation Interfaced With Real Rig Equipment To Improve Training and Skills Validation

“…It is planned to enhance future versions of the model to take into account for gas solubility in oil based muds and for horizontal wells (5). The solution developed by Don Van Slyke of Unocal(4) is proposed for the gas solubilities in future versions; and in-house development for horizontal wells.…”

Hydraulics and Well Control Complications in Unconventional Shale Laterals

“…Ekrann and Rommetveit 1985 Yet, horizontal wells have greater tolerance to take a kick without exceeding casing shoe fracture in comparison to vertical wells (Santos, 1991a). Wang et al (1994) studied gas kicks in a water based mud while drilling horizontal wells. Their model couples the gas influx from the kicking formation with fluid flow along the horizontal section.…”

“…This flow occurs during kick development and shut-in phases. Wang et al (1994) (Choe, 1995;Choe, 2001;Choe et al, 2005). Gjorv (2003) studied well control in extended reach wells.…”