Wireline Riser Wireline Pressure Control
I. Introduction
Wireline Riser Wireline Pressure Control are designed to act as
a pressure chamber used to either deploy or recover tools from
the wellbore whilst under pressure. Riser Sections are designed to act
as chambers for deploying wireline tools into the well whilst
under pressure.
Wireline Riser is available in various constructions:
• Conventional (Riser and Lubricator)
• Integral (Riser and Lubricator)
• Lightweight (Lubricator)
• Flanged (Riser)
Both lubricators and risers are available with quick unions
Lubricators come in standard lengths from 2ft to 12ft and custom
lengths are available on request including longer riser sections
which
are often used between the wellhead and rig floor.
Lubricator and riser can be ported with a ½” (0.50”) NPT for up to
and including 10,000psi WP. For working pressures above 10,000psi,
9/16” (0.56”) Autoclave high pressure ports are supplied. Ports are
available with a saver sub (replaceable port) option.
II. General Technical Parameters
OTIS Quick Union
| Bore | Work Pressure | Service | Connection | Seal Dia. |
| 2.5＂ | 5K 10K | Std H2S | 5＂-4ACME | 3.5＂ |
| 3＂ | 5K | H2S | 5＂-4ACME | 3.5＂ |
| 3＂ | 10K | Std | 5＂-4ACME | 3.5＂ |
| 3＂ | 10K | Std H2S | 5-3/4＂-4ACME | 4＂ |
| 2.5＂ | 15K | H2S | 5-3/4＂-4ACME | 4＂ |
| 4＂ | 5K 10K | Std | 6-1/2＂-4ACME | 4.75＂ |
| 3＂ | 15K | Std H2S | 7-1/2＂-4ACME | 5.5＂ |
| 5＂ | 5K | Std H2S | 8-1/4＂-4ACME | 6.188＂ |
| 4＂ | 10K | Std H2S | 8-3/8＂-4ACME | 5.25＂ |
| 5＂ | 5K 10K | Std H2S | 9＂-4ACME | 6.75＂ |
| 4＂ | 15K | Std H2S | 9-1/2＂-4ACME | 6.25＂ |
| 6.38＂ | 10K | Std H2S | 11-1/2＂-4ACME | 8.25＂ |
BOWEN Quick Union
| Bore | Work Pressure | Service | Connection | Seal Dia. |
| 2.5＂ | 5K 10K | Std H2S | 4-3/4＂-4ACME | 3.75＂ |
| 3＂ | 5K 10K | Std | 4-3/4＂-4ACME | 3.75＂ |
| 3＂ | 5K | H2S | 4-3/4＂-4ACME | 3.75＂ |
| 3＂ | 5K | Std H2S | 5-1/2＂-4ACME×2 | 4.375＂ |
| 3＂ | 10K | Std | 5-1/2＂-4ACME×2 | 4.375＂ |
| 2.5＂ | 15K | Std H2S | 6-5/16＂-4ACME | 4.375＂ |
| 3＂ | 10K | Std H2S | 6-5/16＂-4ACME | 4.375＂ |
| 3＂ | 15K | Std H2S | 7＂-5STUB ACME | 4.375＂ |
| 4＂ | 5K | H2S | 7＂-5STUB ACME | 4.375＂ |
| 4＂ | 10K | H2S | 8-1/4＂-4ACME×2 | 6.0＂ |
III. Structure Features
Wireline Riser is mainly consist of tube, nut and slips, etc.:
Tube is the main pressure-bearing part to accommodates toolstring
inside, it’s lubricator
body part;Seal ring is installed on the quick union part to ensure
the sealing connection
of the lubricators.Nut and slips are mainly for connection
function.
IV. Pressure Test
TheWireline Riser should be tested for compressive strength
periodically, the test pressure
is 1.5 times of the working pressure.
1. Install the test sub and test pipeline.
2. Open the test pump for the pressure test and press the pressure
to test,
holding 15 minutes and fill the test record card.
V. Maintenance
1. Replace the seals after each time usage.
2. Install with the thread protector when in storage.
