Tag Archives: mud gas seperator

Vacuum degasser

Vacuum degasser is an special equipment for processing gas invasion of drilling fluid, which is apply to all types of mud purification system supporting. For the viscosity performance recovery the proportion of mud, stable slurry, reduce drilling cost, which have an very important role. For another , In free gas condition, which also can be used as mud agitator with big power.

vacuum degasser

vacuum degasser

For another, the cover of gas vacuum tank should be cleaned once a week,It can be avoid debris blocking the gas channel.Which Can be washed, object is the gas collecting chamber on the top cover and the foam mud gas separator. Rinse off the vacuum line, removal of the screw plug and a table seat, high pressure pipe is inserted at 3~5 minutes each time.
After using, should wash the rotor in the vacuum tank and the suction pipe,Cut off the power supply, remove the apparent blocking plate (and oval flange block plate), check the parts that damaged, and remove the tank body, wash the tank wall and the rotor using high-pressure pipe.
After each finished drilling shall be the cleaning work to ensure the normal use again.
Working environment temperature is higher than 30oC, should check the vacuum gauge timely, the replacement of steam water separator in the water in time, keep the water temperature does not exceed 35oC.
The winter after use, should promptly release the steam water separator and pump water to prevent the cracking.

Poor boy degasser

We manufacture mud gas separator in oilfield drilling mud cireculation system .Mud gas separator is also called Poor boy degasser, Gas-Liquid separator. It captures and separate large volume of free gas within the drilling fluid. If there is a “KICK” situation , this vessel separates the mud and the gas by allowing it to flow over baffle plates.The gas then is forced to flow through a line and vent it to a flare. A “KICK” situation happens when the annular hydrostatic pressure in a drilling well temporarily (and usually relatively suddenly) becomes less than the formation, or pore, pressure in a permeable section downhole, and before control of the situation is lost.It is always safe to design the mud/gas separator that will handle the maximum possible gas flow that can occur.

Mud gas separator

Brightway series Mud gas separator is professional equipment to treat the gas invade mud. When the drilling mud result gas invade, the proportion of its weight and viscosity have a greater deviation not to meet the requirements of drilling.

 

 

The serious situation is that would cause Chung well, and even blowout accident occurred, if not to treat it timely.?Brightway mud gas Separator combined with the Flare Ignition Device can be used to ensure the drilling process smooth.It is devided into the normal pressure mud gas separator and pressure auto-control gas-liquid separator, according to the pressure.Mud Gas Separator is your best choice to prevent drilling fluids invasion.

 

 

The principle behind the mud gas separator is relatively simple. The mud and gas mixture is fed at the inlet allowing it to impinge on a series of baffles designed to separate gas and mud.The free gas then is moved into the flare line to reduce the threat of toxic and hazardous gases and the mud then discharges to the shale shaker and to the mud tank.Gas-liquid separators in other countries also called Poor boy,Liquid-gas separators,Mud/Gas Separators, etc.

The working principle of mud gas separator and installation and maintenance

一、Working principle

The drilling mud from the mud gas separator liquid inlet into the separator, along the wall fell on the specially designed a set of built-in baffle, after the collision, increase the exposure area, makes the solid and liquid flowing downward, resulting in turbulent flow, the gas and fluid separation. Free gas through the exhaust outlet tank top discharge, the exhaust pipe length determined by site and equipped in general (20-50 m), and lead to safety, after drilling fluid degassing after vibration sieve processing in circulation tank。

Mud gas separator

二、Installation and maintenance

Installation:

In general, the mud gas separator is installed in the  mud tank edge ground,ground level requirements, solid, and preset anchor bolt hole.

When installed with the crane held the main lifting lug lifting vertical with the ground, slowly put down, and then use the rope from the upper part of the body is three (uniform) and surface tension, ensure the body perpendicular to the ground, casting anchor bolts, fasteners.

After installation, the 2 exhaust pipeline to the distance 60-80m (pipeline with its own wellhead. For suppliers, when ordering). 3 of the pulp inlet and rotating blowout preventer or choke manifold is connected, close No. 4 sewage outfallbutterfly valve, open the 7 pulp outlet valve, pipeline received 1 mud tank can be.

When handling, remove manifold, will tighten the rope loosen, crane live body top, loosen the bolts placed horizontally, the ladder can be used as a transport support.

  1. Maintenance:

When not in use, the drilling fluid in the solids control equipment clean and rinse with water, no mud deposited separator body, prevent the mud dried not normal use.

Solids Control Equipment

1 . Solid control equipment components

Performance and quality of drilling solids control equipment is the key to a solid phase control technology . Drilling solids control system includes drilling fluid circulating tank , drilling fluid purification equipment and electrical control equipment of three parts , in which drilling fluid purification equipment are shale shaker,mud cleaner, desander , desilter , degasser , decanter centrifuge, centrifugal pump , mud Gas separator and mud mixer , etc., for the environmentally sensitive areas , you can also configure the drill cuttings recovery and waste treatment plant.

shale shaker

2 . Solid control equipment trends

Currently, the focus on the development Desanding solids control equipment , in addition to mud , gas , etc. in addition to the small footprint , high efficiency , long life equipment , and integrated with high-speed centrifuge , automatic detection and solid control system controlled by the implementation of the test results .

decanter centrifuge

Breakdown strength is actually cutting dryer, tilting frame 10 °, to reduce the loss of liquid. Four vibrating screen mesh with a three-dimensional detail of the waveform of the screen , instead of the conventional linear flat screen , three-dimensional structure allows the force of gravity down into the oncoming solid fold groove , separated from the projection area from each a fold of the upper solids separation . Therefore, by increasing the amount of fluid , the convex portion is not submerged , the convex portion can increase the fluid flow capacity. Two fine sieve cloth attached to the top layer of coarse sieve cloth , three screen cloth bonded together , made of corrugated , perforated and then bonded to the board . Waveform overlay screen area than ordinary flat screen area increased by about 40% , compared with flat screen about 2 to 3 fine sieve size . Ability to handle a 70% increase fluid and not prone to clogging , the treatment effect is very good.

hydrocyclone

In recent years , solid domestic drilling phase of theoretical research and manufacturing process control equipment has a greater level of development, especially in the study of the theory , such as shaker works, hydrocyclones works , etc., have been at or near the world’s advanced level, but made ​​solid control equipment performance, there are aspects of life with a certain gap between foreign solids control equipment , primarily materials, processing quality , precision and supporting the use of common equipment ( eg motor) . High pressure ( pressure 80MPa), large displacement (30L / s) solid control equipment yet. Less domestic shaker type , developed in the future need to accelerate drying breakdown shaker , crawler non- vibrating sieve analysis equipment , marine environmental protection special drilling solids control equipment and versatility for a variety of conditions supporting solids control system, the rich type of solids control equipment.

Flare Ignition Device

The Flare Ignition Device and mud gas seperator are accustomed deal the tailgas and exhausted fossil fuel from refinery and gas gathering station. it’s accustomed eliminate the damage of harmful gas to surroundings and safety. They are the safety surroundings instrumentation.

 

Except the refinery and gas gathering station, this instrumentation is matched with drilling gas-mud centrifuge. currently it’s utilized in drilling project wide. it’s utilized in internal oilfields, Xinjiang Oilfield, Szechwan province field, JiangHan Oilfield, and Iran, Egypt,Turkey,Indonesia, Venezuela etc.

Flare Ignition Device

It is created with flare body, management pod of flare, high-voltage generator, cable, hose, LNG tank (equipped by yourself), and backfire restraint .

It is with electronic firing circuit. Its performance is stable and credible.

2 operational Processes

a.      The flamable gas transfers to the gas water of igniter (Flare) through pipelines.

b.     Connect and begin the Electronic Igniter.

c.     Open LNG tank, operate the Electronic Igniter, and fireplace the firing pipe (the class firing).

d.     Firing the firing pipe to fireplace the exhausted gas (the second grade firing).

e. shut LNG tank, quench the firing pipe, fireplace the combustibility exhausted gas.

3  Performances

●Norminal diameter of Igniter (Flare):  DN200mm

●height of Igniter: three.5m

4 Cautions

a. Don’t mangle the insulator of firing lead throughout shipping and swing.

b. choose Associate in Nursing open house wherever are remote from fireplace to put in the igniter.

c. Its skid should be mounted on the mounted base. If necessary, you’ll use the guy wires.

d. Electronic Igniter should be protected against humidness and wind.

e. This instrumentation is matched with drilling mud solids control equipment for  drilling project. Details see the Service Manual of Liquid-gas centrifuge.

f. The management Pod is especially to Electronic Igniter. Details see its manual, Service Manual of management Pod of DHQ.1 Electronic Igniter.