SIIC filter elements
used in Deep Well Injection (Water Disposal)
As filtration
specialist, SIIC team from Shanghai Filterworkshop Co., Ltd(Shanghai Indro
Industry Co., Ltd) is very glad to share with about “SIIC filter elements used
in Deep Well Injection (Water Disposal)” as followings:
Deep Well Injection
(Water Disposal) process is as followings:
Storage
tank---prefilter---final filter---disposal well
In the process of pre
filter, 20-25 micron SIIC standard polyester/polypropylene felt filter bags or
melt blown pp filter cartridges are used. The purpose is keep well formation
open and capable of receiving injected water.
In the process of
final filter, 5-20 micron SIIC standard polyester/polypropylene felt filter
bags or melt blown pp filter cartridges are used.
Application: Oil & Gas
Production; Deep Well Injection
Purpose of Filtration: Keep the well formation open and capable of receiving injected
water.
Application: When oil and
gas are produced, the product is accompanied by water; known as produced water.
The water is separated from hydrocarbon liquids by use of oil/water separators.
The water is stored in storage tanks on site. Tank trunks vacuum out the water
and take it to a disposal well site. Depending on local regulations, the waste
is either discharged on the ground, into pits or ponds, or injected back into
underground formations. Disposal sites are also prone to receiving highly
contaminated liquid from reserve pits, drilling fluids, etc. Disposal sites
will typically have oil removal systems prior to filtration followed by high
pressure injection pumps (800 - 1200+ psi is not uncommon).
The number one
priority for filtration is to protect the formation into which the water is
being injected from plugging with particulate and oils. Typically the formation
being injected into are well known by operators in the area. Operators will
filter as minimally as possible and are seeking low maintenance (few
change-outs). If a well becomes plugged (downhole pressure increases), a well
would have to be re-worked with costs ranging from thousands of dollars to
several hundred thousand. When this occurs, an improvement of filtration is
considered.
It is critical
that filtration and other equipment remove oil prior to injection as it will do
more to gum up the well than particulate alone.
INDRO Product: 20-25
micron PE/PP felt filter bags, 5-20 micron melt blown pp filter cartridges,
5-20 string wound filter cartridges.
