Vacuum Degasser Plays in Under-balanced Drilling

In drilling operations, gases brought from the well by drilling fluids usually exert negative influence on mud properties and create safety hazards. In under-balanced drilling, sticking has become a frequent occurrence deep in the well. Vacuum degasser is very helpful in tackling the adhesive sticking resulted from over-dense drilling fluids.

Vacuum degasser

Vacuum Degasser Plays in Under-balanced Drilling

1. It is proved by the in-situ experiment that vacuum degasser is suitable both in the normal oil drilling and special under-balanced drilling to remove the entrained gases in drilling fluids, separate the free and non-free gases and recover relative density and viscosity of drilling fluids.

2. It is used to remove entrained gases, with remarkable effects, safety and reliability.

3. Vacuum degasser is more cutting-edge than mud-gas separator since it is developed to be able to take away both the free gases and non-free gases invading drilling fluids system. Accordingly, it has more value in on-site promotion and application.

Technical Requirements of Vacuum Degasser in Under-balanced Drilling:

1. For under-balanced drilling, drilling fluids is required to have stable density. If entrained, it should be put under treatment promptly.

2. The mud/gas separator specialized in under-balanced drilling can do nothing when encountered with micro-bubbles in the drilling fluids of high density and high viscosity. They demand vacuum degasser to work wonders. Therefore, vacuum degasser is essential in stabilizing drilling fluids density for a normal drilling.

3. It is proved in actual application that: normal drilling in this well is very well preserved since treated drilling fluids recovers the original density. It is also known from test data that treatment in vacuum degasser is vastly helpful for drilling fluids to recover density. The recovery rate has been up to scratch.

About KOSUN

Founded in 1992, Xi’an KOSUN Machinery Co., Ltd. (KOSUN) specializes in drilling, sales, services and manufacturing of solids control, drilling waste management and all other related oilfield equipment. With 20 years of experience, we are totally committed to customer satisfaction.

KOSUN is dedicated to providing a solution to water based, oil based and synthetic based drilling fluids. Our equipments can be used in onshore and offshore drilling as well as in HDD, CBM and shale gas drilling area. KOSUN’s main solids control equipment include shale shakers, decanter centrifuges, mud cleaners, desanders, desilters, centrifugal pumps, vacuum degassers, mud tanks, shaker screens and the complete set of various solids control systems.