Pure Water & Clean Energy
Bringing Clean Water To Every Corner On Earth
Pure Water & Clean Energy
Bringing Clean Water To Every Corner On Earth
Oilfield water is hot, salty, oily, and variable. The plant that handles it has to be built for the worst day, not the average one.
Oil and gas water treatment covers several unrelated duties under one heading: cleaning up produced water for reuse or disposal, making injection water for reservoir pressure maintenance, and supplying utility and potable water on a remote or offshore site. Each has a different feed and a different failure mode.
| Duties covered | Produced water, injection water, utility and potable supply |
|---|---|
| Produced water TDS | Brackish through to well above seawater salinity |
| Critical pretreatment | Oil and grease removal ahead of any membrane stage |
| Common scaling risks | Barium sulfate, strontium sulfate, calcium sulfate, silica |
| Injection water | Sulfate removal by nanofiltration plus deaeration |
| Deployment | Containerized and skid-mounted; area classification as required |
Indicative starting points for budgeting. Every system is engineered against your actual feed water analysis and site conditions.
Custom trains for produced water, injection water, and utility supply.
BWRO for produced water reuse and lower-salinity source water.
SWRO for offshore potable and utility water with energy recovery.
Danfoss and CAT pumps, membranes, and energy recovery devices.
Reference material and equipment on our online store, ForeverPure Place:
Engineering guides on this site: SWRO design guide, water quality parameters, chemical dosing, membrane care.
Yes, but only after the hydrocarbons are gone and only within a salinity limit. Free and emulsified oil must be removed upstream because it permanently damages polyamide membranes, so the process train always starts with oil removal and solids handling. Above roughly seawater salinity, conventional RO cannot reach useful recovery against the osmotic pressure, and thermal or high-pressure brine concentration takes over. The decision point should come from the actual water analysis.
Two reasons, both expensive to fix after the fact. Sulfate feeds sulfate-reducing bacteria in the reservoir, which generate hydrogen sulfide and sour the produced fluids. Sulfate also combines with barium and strontium in formation water to form sulfate scales that block the near-wellbore region and are very difficult to remove. Nanofiltration removes the bulk of the sulfate while passing most of the monovalent salts, which is why it rather than full RO is the standard route.
Mixing incompatible waters and concentrating them. Formation water is often rich in barium and strontium; injection or process water is often rich in sulfate. Bring them together, or concentrate either one in an RO train, and barium and strontium sulfate precipitate - both of which are hard, adherent, and largely unresponsive to acid cleaning. Calcium sulfate and silica set additional recovery limits. Run a saturation projection on the real analysis before fixing the recovery target.
Yes. Where a package sits within a classified area, the motors, instruments, junction boxes, and control panels are specified to the applicable zone and gas group, and the certification documentation is supplied with the package. Confirm the area classification at enquiry stage, because it changes equipment selection throughout the skid and is not a change that can be made cheaply later.
Send us your feed water analysis and capacity requirement. Our engineers will size the system and return a budget proposal.
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