PIPE BASE SCREEN

The base pipe, casing or tubing, is selected to API specifications by size,
grade and weight for each of your required applications.

We produce the proven slip-on type of pipe base screen. Our slip-on type of
pipe base screen is manufactured from two components: the base pipe and the
slip-on screen. The base pipe, casing or tubing, is selected to API
specifications by size, grade and weight for each of your required
applications. See Table 3, for our standard range.

The base pipe will then be perforated with a series of holes drilled to a
pre-determined quantity and pattern, see Table 3 above, to carefully balance
flow-capacity at each end for both down-hole handling.

The holes are then debarred and the joint cleaned, inspected and treated to
give the base pipe a long shelf life.

Our slip-on screens are manufactured to very exact diameter, length gauge
and strength tolerances. This is done by selecting the required profile wire
and support rod, which determine the flow-capacity and strength of the slip-
on screen. For each gauge opening in the screen we select a slightly greater
than that of the perforated base pipe. This will give the pipe base screen
optimum flow-capacity at minimum pressure drop across the screen. Having
selected the correct profile wire and support rod for a specific
application, the slip-on screen can now be fabricated using our highly
sophisticated fabricating machines which cylindrically wrap the profile wire
into the electronically controlled screen fabricating machine, resulting in
a uniform, cylinder-like continuous and constant gauge screen of high
strength by fusion-welding the profile wire to the support rods at each
intersection.
Because of the large number of support rods and consequently large number of
welds per unit length of screen, PIPAMAS slip-on screens are superior in
strength and have less likelihood of the profile wire unraveling during
setting or pulling of the screen, it is slipped over the perforated base
pipe straddling the perforated section.

The protective weld rings are then welded to the base pipe at each end of
the slip-on screen, holding it securely in position and adding protection to
the slip-on screen in the well during setting and pulling.
Ubo standard slip-on screen are manufactured from SS.304 material; however,
other materials are available if the conditions in the well dictate the use
of a higher grade of stainless steel. For example, when the well conditions
are such that the total dissolved solids are greater than 10,000 ppm or the
bottom hole temperature is higher than 165° Fahrenheit. In these instances,
we would recommend the use of SS.316 material for the slip-on screen,
because of its higher nickel content and the presence of molybdenum which
has greater corrosion resistance properties.
Ubo slip-on screens are constructed in diameters form 1.72" O/D to 10.75" in
lengths of up to 30' in one piece and gauge openings from 0.001" accuracy.
This then means that the actual pipe base screen joint can be up to 30' of
effective screen length plus two blank end lengths.

Announcement:


If you can envision it,We can supply it. TEL:0086-318- 5183240 E-
mail:sales@ubooem.com

Ubo will do everything possible to provide exact and full product
information based on metal mesh for your information.

In order to give customer a clear image of the product,Ubo has taken some
pictures, customer can dowmload for reference but using our picture for
business is forbidden.

Due to technique and other factors,product image might be slight different
to the products itself,in case everything will follow the products.

Ubo appreciate any suggestion on our product information or picture or
anything else.

Minimum Order: 1 metres

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