Well screens

Well screens

There are two types of wells: the « well recognized » and development wells. A « well recognized » or exploration well is drilled in a field that has never been explored before. A development well is drilled into an existing oilfield to extract more oil.

Both above wells can be drilled in various ways. They can be vertical, horizontal or multilateral. Vertical wells represent the traditional form of oil well drilling.

The horizontal and multilateral wells are increasing the length of the section in contact with the tank so they are more productive and also allow drilling in a reservoir where vertical access is difficult and also consolidate on the same surface, more wellheads.

The horizontal and multilateral wells are more expensive and it is important to select the drilling and completion equipment to optimize the cost by ensuring the success

The solid particles produced by a well may be constituted by fine particle formation or load bearing solid which move freely through the formation.

HMDS Process offers different technologies retentions solid particles to ensure optimal well completions.

Direct wire wrap screen

Direct wire wrap screen is extremely resistant manufacturing method consisting of the wire and support directly wound on the perforated tube leaving the longitudinal ribs in intimate contact with the tube surface. In difficult horizontal wells during the friction of sand control systems installation damages the filtering surface and Direct wire wrap screen is best suited for use in extreme conditions thanks to the excellent mechanical properties.


  • Optical measurement of wire-wrapped gauge
  • Uniform gauge for reliable sand control
  • Intimate contact between supports & pipe
  • Highest mechanical Resistance
  • Superior installation loads
  • High open flow area based on screen gauge
  • Increased well bore longevity
  • Low entrance velocity with lower friction forces
  • Proven and advocated technology in horizontal app



Pipe Base Screen

Pipe Base Screen est constitué d’une crépine enfilé sur un tube perforé, la crépine extérieure est réalisée de fil profilé en V soudé sur des ribs à chaque point d’intersection. Slip on est sand control couramment utilisé dans des puits verticaux ou horizontaux grâce à sa résistance mécanique fortement élevé.


Pipe Base Screen consists of a strainer fitted over a perforated tube, the outer screen is formed of V-shaped profile wire welded on the ribs to each intersection point. Slip on sand control is commonly used in vertical or horizontal wells due to its high mechanical strength.


Premium Screen

Premium Screen consists of high-strength filter media with a large open surface and the filter media is confined between the inner perforated tube and the outer perforated shroud to protect the filter surface


  • Customized design available
  • Filtration supports available in different grades (304L, 316L or other specific Alloys)
  • Specific wire wrap support and drainage base screen to ensure maximum flow velocity and protection of the sintered mesh
  • Continuous spiral welded perforated shroud 316L will provide high mechanical resistance and protection to the sintered mesh filter, with large open area (35% minimum)
  • Heavy duty construction for severe field conditions
  • Optional Spiral Blade Stabilizer available on demand


Prepacked Screen

Prepacked Screen is a filter consisting of two concentric strainers with their annular space filled with resin and the assembly is mounted on a perforated tube


  • Customized design available according to client’s specs
  • Base pipe according to API5CT with optimized perforation open area
  • Dual layers of “V” Shape wedge wire filtration supports available in different grades (304L, 316L or other Corrosion Resistant Alloy)
  • Optimized screen stand-off on base pipe to ensure high drainage and uniform circulation of fluids
  • Wedge wire heavy duty construction with large number of rods to reach high tensile strength
  • Very high sand retention efficiency
  • Pre-pack available with free sand or resin coated gravel
  • Optimized gravel pack thickness
  • Optional Spiral Blade Stabilizer available on demand


Slotted Liner


Slotted liner is a filter for retaining the solid particles in very severe conditions thanks to the excellent mechanical properties.

The slotted liner is a robust and cost-effective solution for long completions or low productivity wells.

The slotted liner is manufactured with the fastest multi spindle slotting equipment in the world. The 40 ft-80 spindle milling machine produces slot in one pass over the entire length of the joint We can handle joints with length up to range 3 and diameter from 1.9” up to 9⅝



Upon request, we can cut any length of slot in any width


Both slot types can be cut in the line-pattern and the staggered-pattern. With the multiple patterns the open area can be increased by 4 times compared to single cut pattern.


Every joint slotted by EUROSLOT is deburred internal and external and drift tested according to API standards. Every slot visually inspected and cleaned of burr material. All threads and couplings are thoroughly cleaned and lubricated.
The size, grade and weight of the base-pipe are according to A.P.I casing or tubing specification.


Number of slots calculation per foot



We attach particular importance to that you can find an answer to your need in a short time. Our first concern is the satisfaction of our customers because you are our best ambassadors vis-a-vis our know-how.
The quality of our team is our ability to produce a product that meets the needs of our customers at a fair price. You trust us, you will not be disappointed.



3 chemin Beaulieu
86800 Sèvres Anxaumont - France
Email : contact@hmdsprocess.com

Tél. +33 (0)9 54 31 77 85