AlfaDirect ICD
Description
Inflow control device AlfaDirect ICD is a type of passive control of fluid inflow into the well. It is a ceramic choke, the size of which is calculated when designing the zonal inflow into the well. Like all inflow control devices, AlfaDirect ICD is used to equalize the pressure profile along the well to minimize the risk of coning and, as a consequence, water or gas breakthrough.
AlfaDirect ICD inflow control devices are equipped with an AlfaDirect sand screen, since in such a combination with a wire filter an effective solution is achieved for the problems of regulating the flow profile into the well.
The direct wrapped AlfaDirect screen has a higher strength than other types of wire screens because it is wound directly onto the base tube, which significantly reduces the risk of damage to the filter. Due to the high resistance of the filter to rotational loads and compression, the risks of damage to AlfaDirect during running and reciprocation of the assembly are minimized, which facilitates bringing the liner to the bottom.
Characteristics
- ICD nozle material: ceramics
- Maximum differential pressure - 10 MPa
- Collapse pressure - 47.9 MPa
- Fluid throughput with a choke diameter of 2.5 mm - not less than 20 m3 / day
- Working environment temperature - from minus 50 to 200 С
- Available for base pipes in a wide range of sizes: 73 - 168 mm
- The size of the slot hole is from q0 to 2000 microns
- The drainage layer height is from 1.5 to 6 mm
- Wire material: AISI304/304/316/316L
- It is possible to install up to 6 nozzles per screen.
Usage
AlfaDirect ICD is used in oil field reservoirs where it is required to equalize the reservoir pressure profile along the length of the well.
Advantages
- Cost effective solution for well flow profile control.
- Simple and reliable solution for lower completion ICD screens.
- Inflow control by equalizing pressure along a horizontal well.
- Passive PCDs are able to delay tapering, increasing the period of more efficient oil production.
- Ultra-high strength of the product, which minimizes the risk of damage to the filter during running and installation with the possibility of rotation and reciprocation of the liner.
- High precision of the slotted holes provides quality filtration, which provides a reliable guaranteed solution for sand control.
- Tapered wire profile contributes to the screens resistance to sticking
- Extends liner life due to corrosion and washout resistance
- The ICD does not affect the inner diameter of the base pipe.
- Designed to handle a wide variety of liquids and acids.
