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Possible Kick Indicators in Well Control
The alertness in determining early possible kick indicators in well control is of the utmost importance to prevent a well control incident. Careful observance and positive reaction to these signs will...
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Common Problems and Complications During Well Kill Operation
During well kill operation, crews should always be vigilant since complications can actually occur at any stage. If there’s a discrepancy in the kill plan, it needs to be noted immediately. For...
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What is a degasser on a drilling rig?
A degasser is equipment used to remove entrained gas in drilling fluid so it prevent or minimize reduction of hydrostatic pressure due to gas cut mud. When drilling mud passing over the shale shakers...
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What’s a Poor Boy Degasser (Mud Gas Separator)?
Poor Boy Degasser or Mud Gas Seperator, located downstream of the choke manifold, is a vertical vessel used to separate any gas from drilling fluid during well control situation. Once the gas has been...
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Possible Wellbore Problems during Well Kill Operation
In the previous article, Common Problems and Complications During Well Kill Operation, it is about commons complications that can be possibly seen while performing well control operation. For this...
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Introduction to Shallow Gas Well Control
This is the introduction to shallow gas well control which will briefly describe the overview of shallow gas and some related information. We have few articles regarding this topics and we will...
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Shallow Hazard while Drilling Without a Riser (from a floating rig) and...
According to many company policies, unless circumstances and conditions apply, as stated in the Drilling Policy and Guidelines Manual, the surface hole should be drilled riserless. By doing this, it’s...
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Drilling with a Riser from a Floating Rig for the Surface Casing and...
When in shallow offshore environments, the formation in which the conductor is set is normally weak, which means it struggles to contain the pressure that occurs during a gas kick. To avoid an...
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Drilling (from a bottom supported rig) for the Surface Casing and...
When penetrated from a platform or a jack-up, shallow gas reservoirs have the potential of being more hazardous. Since the conductor almost reaches the floor of the rig, any kick products discharge...
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Basic Understanding about Cameron U BOP – Rams Blow Out Preventer
Suited towards surface or subsea applications, the Cameron Type ‘U’ preventer is one of well known wellbore pressure assisted ram preventers . It can come with a single ram (Figure 1) or double rams...
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Introduction to Diverters in Well Control
Considering the danger of shallow steam or gas zones requires unique well control considerations. Whenever the necessary casing shoe integrity cannot be obtained due to the shallowness of the zones...
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Risks and Equipment Considerations for Surface Diverting (Well Control)
Of all diverts, many studies show a failure rate of between 50% and 70%. According to the same studies, when it comes to well control issues, shallow gas blowouts is the leading cause of offshore rig...
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Accumulators for Surface Well Control System and Requirements
The accumulator unit is one of the critical well control equipment and its main aim is to supply the pumps with atmospheric fluid while also storing high pressure operating fluid for operating BOP...
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Understanding the Dynamics of Tripping Pipe in Well Completions and Workovers
Tripping pipe into and out of a well constitutes a commonplace activity in completion and workover operations. However, alarming statistics reveal that a significant number of kicks occur during these...
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Understanding Kick and Influx in Drilling and Completion Operations
In the realm of well control, encompassing both drilling and completion operations, the terms kick and influx hold significant importance. This article aims to explain the distinctions between these...
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Understanding Factors Leading to Low Density Drilling Fluid and Potential...
Table of Contents Toggle Accidental Dilution and Fluid AdditionGas CuttingOil or Saltwater CuttingSettling of Mud Weighting MaterialsLoss of Equivalent Circulating Density (ECD)Cementing...
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What are HCR Valves?
An HCR valve, also recognized as a High Closing Ratio valve, is a specialized type of gate valve widely employed in well control systems, particularly within the blowout preventer (BOP) stack. Its...
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What is a Back Pressure Valve (BPV)?
A Back Pressure Valve (BPV), also known as a tubing plug, serves as a one-way check valve typically placed within a specially machined profile in the tubing hanger or plug bushing. Its primary...
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What are Surface Controlled Subsurface Safety Valves (SCSSV)?
Surface Controlled Subsurface Safety Valves (SCSSV) are a critical component of well completions, preventing uncontrolled flow in the case of catastrophic damage to wellhead equipment. SCSSV’s are...
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What are differences between Back Pressure Valve (BPV) and Two-Way Check...
Learn key differences between Back Pressure Valve (BPV) and Two-Way Check Valve (TWCV) so you can choose the right one for a particular operation. Table of Contents Toggle Back Pressure Valve (BPV)Two...
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