High-Pressure Flowline Manifold Systems

Well Test Choke Manifold

Well test choke manifolds are used in oil and gas well testing for choking, pressure and temperature measurement, sampling and productivity calculation. They control flow and pressure in surface test flowlines. Common bores are 2 1/16 in to 4 1/16 in, with working pressures from 6,000 psi (42 MPa) to 15,000 psi (105 MPa) and NACE sour-service capability.

1. Product Overview

The well test choke manifold is used in oil and gas production well testing. After connection through wellhead lines, it chokes the medium and works with pressure and temperature data acquisition to calculate production and deliverability.

The manifold uses fixed-size choke beans for throttling control and is important equipment in logging and well-testing processes.

The product uses flanged connections and slab gate valve configuration, suitable for long-term service in various fluid environments.

Common nominal bore is 2 1/16 in to 4 1/16 in, and temperature class is -29 ℃ to 121 ℃, meeting H2S service and relevant NACE MR0175 requirements.

Well test choke manifold

2. Design Features

Flanged connections are safe and reliable, making the manifold convenient for use with wellhead and test-line systems.

The outlet can use a union connection for quick field line installation and dismantling.

Forged flanged cross structures provide high pressure-bearing strength and facilitate pressure data acquisition and monitoring.

Different choking forms can be selected according to the test process and field service conditions.

3. Well Test Choke Manifold Main Technical Parameters

Specification / ModelWorking PressureConnection Type
YZG-42-36,000 psi (42 MPa)3″ Fig 602
YZG-70-310,000 psi3″ Fig 1002
YZG-105-415,000 psi4″ Fig 1502
YZG-35-805,000 psi3 1/8″ - 5000 psi API flange
YZG-70-7810,000 psi3 1/16″ - 10,000 psi API flange
YZG-105-7815,000 psi3 1/16″ - 15,000 psi API flange
YZG-35-1035,000 psi4 1/16″ - 5000 psi API flange
YZG-70-10310,000 psi4 1/16″ - 10,000 psi API flange
YZG-105-10315,000 psi4 1/16″ - 15,000 psi API flange