Surface Controlled Subsurface Safety Quiz Questions

Explanation
SCSSV stands for Surface Controlled Subsurface Safety Valve. This valve is used in oil and gas wells to control the flow of fluids and prevent any potential safety hazards. It is designed to be controlled from the surface and is installed in the subsurface of the well. The term "Surface Controlled" refers to the ability to control the valve's operation from the surface, while "Subsurface Safety Valve" indicates its location and purpose in the well.

Explanation
The purpose of a valve is to control the flow of a substance, such as gas or liquid, through a pipe or conduit. In the case of a well, a valve is essential for shutting off the flow stream in situations where the wellhead is damaged or inoperable, such as during a fire. This ensures that the flow of substances from the well can be stopped when necessary, preventing further damage or hazards. Therefore, the statement is true.

Explanation
The wellhead panel is responsible for providing hydraulic pressure to keep the valve open when the platform safety system determines that it is safe. This indicates that the valve will remain open as long as the safety system confirms that there are no risks or dangers present. Therefore, the statement is true.

Explanation
When an ESD (Emergency Shut Down) system is activated by personnel, it is designed to initiate a safety response in order to prevent any potential hazards. In this case, the ESD activation will cause the SCSSV (Surface Controlled Subsurface Safety Valve) to close. This action is taken to shut off the flow of fluids and prevent any further release or escape of potentially dangerous substances. By closing the SCSSV, the ESD system ensures the safety of the operation and minimizes the risk of any adverse consequences.

Explanation
The SCSSV (Surface Controlled Subsurface Safety Valve) is located a minimum of 100 ft below the mudline. This valve is a safety device used in oil and gas wells to prevent uncontrolled flow of fluids. Placing it at a depth of 100 ft ensures that it is securely positioned below the mudline, which is the level at which the well is drilled into the earth's surface. This depth helps to protect the valve from external factors and allows it to effectively control the flow of fluids in the well.

Explanation
The pressure required to shut in the SCSSV (Surface Controlled Subsurface Safety Valve) consists of three components: the SITP (Surface Injection and Testing Pressure), the Spring rating in the SCSSV, and an additional 1,000 psi.

Explanation
The statement "SCSSV shall be tested once every 9 months" is false. The SCSSV (Surface Controlled Subsurface Safety Valve) is a safety device used in the oil and gas industry to prevent blowouts and uncontrolled flow of fluids. It is required to be tested more frequently than once every 9 months to ensure its proper functioning and reliability. Regular testing and maintenance are essential to ensure the safety and integrity of the well.

Explanation
The correct answer is "All of the above". This means that all of the mentioned causes - seals in the valve leaking, leaking connections, and relief valve failure in the panel - could potentially lead to the pump not stopping when reactivating the downhole valve.

Explanation
Excess flow rates through the SSCSV valve beyond the design setting will cause the valve to close. This means that if the flow rate of fluid passing through the valve exceeds the maximum limit set by the valve's design, the valve will automatically close. This mechanism ensures that the valve can handle only a certain amount of flow, preventing any potential damage or malfunction that could occur if the flow rate exceeds the valve's capacity.

Explanation
Equalizing the pressure across the SSCSV valve ensures that the pressure on both sides of the valve is balanced. This allows the spring to exert its force and shift the choke bean back in place, thereby opening the valve. If the pressure is not equalized, the spring may not be able to overcome the pressure difference and the valve will remain closed. Therefore, the statement is true.

Explanation
The statement is true because a downhole valve set in a landing nipple is typically tested annually. This is done to ensure that the valve is functioning properly and to prevent any potential issues or failures in the downhole equipment. Regular testing helps to maintain the integrity and reliability of the valve, ensuring that it is in good working condition and ready for use when needed.

Explanation
The SCSSV (Surface Controlled Subsurface Safety Valve) is designed to close in response to various emergency situations. ESD (Emergency Shut Down) refers to a system that automatically shuts down equipment in case of a dangerous event. TSE (Trip Speed Emergency) is a mechanism that activates when there is an abnormal pressure increase. Fire detecting devices are sensors that detect the presence of fire. Therefore, all of the mentioned options can trigger the SCSSV to close as a safety measure in different emergency scenarios.

Explanation
The statement is false because the SCSSV (Surface Controlled Subsurface Safety Valve) will not close within 4 minutes after the ESD (Emergency Shutdown) is pulled. The SCSSV is designed to close immediately when the ESD is activated, ensuring the safety of the well and preventing any potential blowouts or uncontrolled releases of pressure. Therefore, the correct answer is false as the SCSSV closes immediately, not within 4 minutes.