Tag: poor-boy-degassers

Mud gas separators for oil and gas well drilling

on 12 October 2022  Solids control equipment  gas liquid separators, gas mud separator, liquid gas separators, mud gas separator, poor boy degasser, poor boy degassers

Mud gas separators are the "kick-off" devices. We usually use the separators together with flare ignitors. Let's find more details below.

Mud gas separators specifications

There are main specifications including vessel size, thickness, design code, pipelines and fittings model, design pressure, material, and so on. Vessel size means the diameter and the height or length of the main vessel body. Flow rate and degassing capacity define the vessel size. For example, 800GPM or 1500GPM. The thickness is the gauge of the profile used to build the vessel. Such as 10mm, 12mm, and so on. Of course, the working pressure or design pressure determines the sheet thickness.

The design code affects material selection, too. Design code including ASME, GB standard, and so on. If we need to certify the separator under ASME and get the seal, there is a very definite requirement for materials. Pipelines and fittings including the inlet line, discharge line, vent line, drain port, valve and so on. Besides the pipe size, such as 5", 6", 8", 10" we also should pay attention to the length, pressure, as well as flange end specs.

Mud gas separtors

Mud gas separators

For example, there is mud leg on the gas separator, it's also mud seal. That means the liquid level of discharge line after degassing. It helps to prevent separated gas flow back to the drilling fluids. Usually, the mud seal is no shorter than 3ft some clients request 5ft or longer according to the actual design of the degasser.

More information of the degassers

We know the degassers inlcuding vertical type and horizontal type. Usually, we use the vertical degasser. It occupies a less foot print. Furthermore, the horizontal degasser and vertical degasser are different with each other on some tinies. Such as vent line design, different ports arrangement, and so on.

The internal buffle blades helps to break the bubbles when drilling mud drop down from higher end of vessel. Then the gas will get released out of bubbles. Besides the internal buffle blades design, there is another pattern to let the gas out of bubbles. It's a hopper upside down, so when the fluid pass through the inlet port, the dimater of hopper suddenly becomes large and drop down swiftly, then the bubbles break and air flow away to the top and vent & ventilation.

Material grade is another issue users may concern. If the H2S content is high we'll consider the material resistant H2S and corrosion allowance. So, there is Q355, 16Mn, Q455 and so on material.

The external painting is an important factor of quality. We usually do the sand-blasting before the first layer epoxy zinc rich primer. The DFT is no less than 75 microns, then the epoxy MIO no less than 100 microns, and then Polyamide Cured high build epoxy 75 microns, finally the Aliphatic polyurethane 50 microns, finally the DFT is no less than 300 microns.

Poor boy degassers

Poor boy degassers

Tiny details of liquid gas separator

Here we'll talk about more details of separator components or little parts. Such as the flanges, the relief valves and the pressure gauge, lifting lugs, supporting legs, and so on.

Flanges are used to connect pipelines between degasser itself and the extension line. Such as inlet line port, will connect the line from choke manifold, and the discharge line connects to the shale shaker feeder, while the vent line connects to the flare ignitor gas line. We need to pay attention to the flange pressure, and the standard. Such as 1.6Mpa, or 4.0Mpa, is it an ANSI standard or a metric flange. Is it a steel one or a stainless steel one? About the pressure gauge, do we need the normal pressure one or a high pressure one?

Regards to the legs, do we need the laydown supporting leg or not? For the supporting frame, do we need the regulated one or a fixed one?

Furthermroe, you can order the extension vent line up to 100m along with the poor boy, or you can fit that yourself. Pay attention to the flanges, should be same model or size with ours.

Ye, there are so many different configurations. Please come to us and get the optimal solutions to the degassers. Leave comments below or call us freely.

Oilfield poor boy degasser of Aipu solids control

on 14 January 2017  Solids control equipment  drilling mud gas separator, gas buster, oilfield poor boy degasser, poor boy degassers

Oilfield poor boy degasser is the equipment used to get rid of gas in drilling fluid. At oilfield, poor boy degasser is usually set before shaker.

Oilfield poor boy degasser introduction

For oil drilling, poor boy degasser is the first equipment to process drilling fluid. Connection is between chock manifold and degasser inlet line. Large quantity gas will be separated out swiftly

Poor boy degasser is also referred to mud gas separator, liquid gas separator, or gas buster. In oilfield, we set poor boy degasser before shale shaker. While shaker is before vacuum degasser.

Mud gas separator

Mud gas separator

Mud gas separator can be designed with internal plates or internal hopper. Such design helps gas bubble break down. Oilfield poor boy degasser is safe equipment, especially when invaded gas is in large quantity

Mud gas separator operation

During oil drilling, gas will flow into drilling fluid constantly. If gas pressure is at high level, there will be blow out at site. It's rather dangerous for whole drilling and operators.

We need to connect inlet pipe with chock manifold. The fluid flows into oilfield poor boy degasser with gravity. Gas bubbles will break with collision on buffel blade. Put degasser at flat ground with the foundation bolt. At complete plain level. Make sure all connections in good condition. Check pressure gauge regularly.

When oilfield poor boy degasser stop working, we have to clean the vessel completely. Any sediment or mud residue is prohibited

Oilfield poor boy degasser

Oilfield poor boy degasser

Aipu liquid gas separator

There are APMGS800, 1000, 1200 gas separators. Capacity is from 200m³/h to 360m³/h. There are common pressure and high pressure degasser for options. Top ressure gauge is standard configuration. Usually we operate vertical type poor boy. It is more compact.

Oilfield poor boy degasser of Aipu is H2S resistant. Only if clients request lower cost, we'll use common carbon steel. Connection between pipes can be flange or union. Vent lines are extra part agains order. And gas line should be 60-80m.

Besides oilfield poor boy degasser, Aipu also manufactures flare ignition device. Usually flare ignitor is operated together with poor boy. If you order 2 items together, you'll enjoy special discount. Please come to us now!