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2. SCHLUMBERGER Processing & Separation – Gas Processing & Treatment

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Product Description

SCHLUMBERGER Processing & Separation- Gas Processing & Treatment

PUREMEG Reclamation and Regenerating Unit

Description:

Monoethylene glycol (MEG) is widely used by the oil and gas markets in wellheads and pipelines as a hydrate suppressor to prevent hydrate formation at pipeline conditions. On offshore, deepwater gas-production facilities, where the exposure to lower temperatures in subsea pipelines is common, MEG typically is used for hydrate inhibition.
PUREMEG MEG reclamation and regeneration units not only regenerate the MEG by boiling off the pipeline water, they also remove salts and other solids to achieve the required outlet glycol purity. Dissolved salts in formation water, pipeline production chemicals, and pipe scale all have the potential to scale or foul both subsea and topside processing equipment. This MEG recovery system is therefore an essential component of pipeline flow assurance.

Advantages:

  • The unit provides effective and proven salt removal.
  • Low solids levels in the recycle loop protect the most expensive and vulnerable parts of the system from abrasion, erosion, and fouling, which reduces maintenance and increases plant availability.
  • Salt separation at ambient temperatures improves safety and avoids the need for specialized equipment.
  • The technology significantly reduces MEG losses and produces a waste stream suitable for marine disposal, by separating salt from brine.
  • Solids removal is achieved without the use of centrifuges, unlike other systems on the market. This avoids use of expensive, high-maintenance equipment and prevents oxygen contamination of the MEG. (Oxygen is a main contributor to MEG degradation and material corrosion within reclamation systems, impacting both opex and the life of the plant.)
  • The MEG reboiler is designed to avoid hydrocarbon foaming and the fouling of packing associated with conventional systems.
  • The proprietary divalent salt removal system is capable of handling a diverse range of water chemistries, solids loadings, and particle-size distributions.
  • The dedicated reaction vessel optimizes crystal growth in the precipitation of divalent salts. Crystal size and shape directly influence the performance of downstream separation and drying processes.
  • A wash step is included as part of the divalent salt removal system, enabling MEG recovery and reducing opex; the salt discharge can be dried for easier handling and disposal.

Picture of MEG:

 PUREMEG Reclamation and Regenerating Unit

Glycol Dehydration System

Specification

  • All system optimize efficiency , capital investment, and operating costs to provide more product for your money
  • Variations in standard size to accommodate variations in flow rate
  • Advanced system remove water to less than 1 lb/MMscf

Technical Data

  • Design Pressure from 230 psig to 2160 Psig
  • Capacity 100 to 200000 MMSCFD
  • Temperature : 40 to 100 deg F
  • Standard skid capacity 5-30 MMSCFD
  • High capacity project up to 1200 MMSCFD and higher

Application

  • Removing water vapor from natural gas

 Picture Glycol

Glycol Gas

Cyanara CO2 Membrane Separation Solution

Acid gas CO2 separation systems with CYNARA Membranes

Specification

  • Process Flexibility ; can be applied to grass root or modifying existing facility
  • Operation flexibility ; accommodate variations in feed gas composition and flow rate
  • Low installation cost, compact and lightweight
  • Low energy and operating cost

Technical Data

  • CO2 inlets from 5% to 85%, outlets from 1.5% to 50%
  • Pressure <1100 psig , Partial Pressure of CO2 <400 psig
  • Temperature : 40 to 100 deg F
  • Standard skid capacity 5-30 MMSCFD
  • High capacity project up to 1200 MMSCFD and higher

Application

  • Acid gas CO2 separation system with membrane

Pictures of Membrane

membrane cynara

 

 

 

 

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