HOT TAPPING

 As the industrial world becomes more competitive, the resistance to shutting down units or plants to perform retrofits and tie-ins increases. Hot Tapping is one solution to this problem.

OSS has the equipment locally to perform up to 12-inch hot taps.

OSS represents PMI Limited (UK) that have equipment to perform hot taps above 12-inch and also to perform line stops up to 24-inch.

Inclusive in the pipeline intervention range of services are:

• Epoxy shells
• Clockspring and composite repairs.
• Large diameter polyethylene taps.
• Advanced Pressure Testing.
• Specialist pipeline consultancy.

OSS had performed hot taps for some of the majors:

• British Gas
• Bp
• PLNL (Nitrogen)
• Petrotrin.
• Ferrostaal.

 CORROSION & CHEMICAL MANAGEMENT                            

In the oil and gas industry production Integrity Management plays a major part to ensure the assets are protected.

Corrosion engineering is an important facet where the expertise sometimes does not reside within the company’s human resource database. Expertise in this area is then required during project design and also for on-going asset integrity management.

Also, chemical corrosion inhibition is a major part of internal corrosion mitigation. As well chemical treatment programs are critical to the operation in other areas– scale control for water-containing systems, hydrate inhibition for gas systems, demulsification for oil water separation both onshore and offshore etc.

OSS has on staff engineers and field resources to completely handle both these areas on a contract basis. This can be for a new operation or for existing assets where ‘getting a handle’ on this area has been problematic.

Services provided here include:

·     Engineering consultancy – OSS staff include engineers that have managed major chemical company accounts

·     Field chemical management – OSS has experienced technicians capable of surveys, chemical injection      setup and maintenance, on-site testing and monitoring.

·     Preparation of chemical bid packages, evaluation and award.

·     Production chemical training.

OSS is the area representative for Rohrback Cosasco Systems (RCS),

RCS has been the world leader in corrosion monitoring since 1950. Corrosion is the leading cause of process equipment and piping failure, requiring companies to pay billions of dollars annually in replacement costs and downtime. We offer a wide range of solutions to corrosion problems in a variety of industries, including oil and gas, petrochemical, water treatment, chemical, pulp and paper, and pharmaceutical. Since 1990, we have introduced a continuous stream of products which help customers obtain and analyze corrosion data that was previously inaccessible.

Products include internal corrosion monitoring systems (coupons and probes). Many of the systems can operate using discrete monitoring as well as on-line monitoring systems that can be hooked up to Distributed Control Systems.

OSS can:

·        Supply the products

·        Provide training

·        Install systems via hot tapping.

·        Perform corrosion monitoring services – high pressure coupon retrieval, data processing, reporting and recommendations.

·        Corrosion management system design

 DOWNHOLE CHEMICAL INJECTION                                             

 In many oilfield production systems where paraffin, scale, emulsion and load-up problems occur injecting chemical at the optimal location (downhole) is very problematic. Gas lift injection is costly and inefficient and batch treatment and squeezes are uncertain to produce results.

OSS represents Dyna-Coil who will install up to 3/8 inch chemical injection tubing in through the tubing down to the formation level where chemical can be applied at the heart of the problem.

Average installation time is 4 hours.

This type of chemical injection can result in:

• Production increase where downhole emulsions exist,
• Production maintenance and/or increase in scale and paraffin inhibition programs.
• Re-start gas wells using foamers.

Currently in R&D is a product that will allow the continued operation of the SSSV.

   PIGGING                                                                                              

OSS has extensive experience in the design of pigging programs for pre-commissioning, routine maintenance and cleanup pigging.

OSS services include:

·        provision of pigging technicians,

·        launcher and receiver supply and installation,

·        pig supply,

·        pig repair and service,

·        pre-commissioning and commissioning pigging, hydrotesting,

·        chemical treating of hydrotest water,

·        discharge water testing for environmental compliance,

·        routine maintenance pigging.

OSS represents Pipeline Engineering a U.K. based pigging design (commissioning pigging, hydro-testing, maintenance, rehabilitative & decommissioning pigging, and consultancy) and supply (foam, spherical, hard pigs, pig launchers/receivers, tees, low & high pressure isolation equipment) company.

OIL IN WATER MONITORING                                                     

OSS has on staff the expertise to manage the monitoring of oily water discharges from platforms and other oil producing assets inclusive of:

·        sampling as per approved methods.

·        Use of on-site instrument to measure oil-in-water concentrations.

·        Sale of on-site instruments and training in use.

OSS represents Jorin (UK) who manufactures the ViPA range of Water Quality and Particulate Monitoring Systems. 

The ViPA uses a video microscope to capture images of the particles in a process flow, like the one above.

The camera captures an image of the particles in the liquid flow and analyses this image. Information on the shape, size, optical density and 14 other parameters are recorded for each particle in the image before the data is saved and the next image is captured. This shape information is used to determine:

·        Oil-in-water concentration.

·        Oil droplet size distribution.

·        Solids concentration.

·        Solids particle size distribution.

This unit differs from traditional light scattering techniques in that it does not need to be calibration for a particular stream. It can therefore be moved around to different streams.

  PRODUCED WATER TREATMENT                                       

Companies continue to look for economical ways to treat Produced Water for disposal or re-injection. Both onshore and offshore oil and gas locations face the challenge of installing reliable treatment equipment capable of processing variable flow rates and meeting increasingly stringent discharge criteria.

Compounding this challenge are extreme space limitations on offshore platforms and onshore locations.

OSS represents Monosep of the USA who have incorporated numerous proprietary technologies into their Produced Water treatment systems. These technologies include regenerable media, hydraulic flotation, filtration and Produced Water polishing systems.

OSS has supplied this equipment to British Gas Trinidad & Tobago and to Trinmar Limited.

  REVERSED OSMOSIS                                                             

In the offshore environment and the hotel industry there is a need to economically produce safe drinking water. OSS represents Monosep of the USA who has a patented reverse osmosis system. 

Monosep water systems specializes in:

• Converting seawater into potable or drinking water standards
• Converting seawater into potable water to build water base drilling fluids, completion fluids, etc.
• Treating produced water, frac water and/or pit water into reusable water or treating to NPDES discharge standards
• Treating seawater for Ultra High Pressure (U.H.P.) water blasting for coating operations
• Manufacturing water systems ranging from 10 B.P.D. to 10,000 B.P.D for rental and purchase