Definition - What does Choke Bean mean?
A choke bean is a fixed choke used to control fluid flow. The choke bean consists of a replaceable bean usually made of hardened steel. The choke bean is mounted near the Christmas tree, which is a set of valves and fittings at the top of a well to control production or flow. The choke bean is manufactured precisely to the choke diameter and all fluid flows through it. The choke beans are available in different sizes and are identified by choke diameter.
Trenchlesspedia explains Choke Bean
A choke bean is used in the oil and gas industry and is very useful for many reasons.
- A choke bean maintains and controls the production rate of hydrocarbon from the well.
- Choke beans are used to prevent ingress of sand depending on the type of reservoir rock.
- A choke bean is used to achieve pressure downstream of the bean
- It prevents early water channeling or coning
- It can be employed in artificial gas lift wells
The choke, regardless of its position, creates back pressure on the well. This results in higher pressure at the bottom of the well. Choke bean is often used in the positive choke valve to control flow. On one side of the choke manifold, calibrated choke beans control flow rate through the fixed choke. The choke beans are screwed in the choke box and are of specific diameters, in gradations of 1/64".