This article will teach you about the stripping procedure for non-migrating kick. This procedure is used to strip to desired depth but it won’t account for volumetric bleed therefore it is mainly applicable for stripping with non-migrating kicks as water or oil.
In the previous articles, we discuss about the stripping operation and techniques with non-migratable kicks as oil and water kick. This article will focus on the stripping operation with gas influx and we are going to describe some additional considerations that you need to account for. Gas kick is different from the liquid kicks because gas can naturally migrate. The gas migration affects the stripping operation because increase in casing pressure due to gas migration must be taken into considerations.
Kick penetration is one of the most critical concerns for stripping operation because a kick height will change due to change of hole geometry. In this this article, we will describe about this situation.
This is will be happened when the string penetrates the kick.Height of influx will increase when the drillstring penetrates a kick; therefore, hydrostatic pressure decreases and casing pressure increases in order to compensate this situation.
If the casing is maintained constant while penetrating the kick, you will have high chance to take more influx because of underbalance situation (Figure 1). This article will teach you about how to determine pressure increment while penetrating into the kick, what to look for, etc. Continue reading
Shallow gas is one of the most dangerous incidents in well control because you don’t have the BOP set to be able to control the well. Additionally, shallow gas always happens at the shallow depth as surface hole section where you will have a difficulty to control the well. This footage below show you how serious of the shallow gas in an offshore environment.
Well control with pipe off the bottom is one of the most serious well control situations because kick below a drillstring can create very complicated situations when compared to a normal well control. This article will teach you about the basic well control when the pipe off bottom.
There are several well control techniques to manage when the kick comes into the well and it is below the pipe;
