Crisman Annual Report 2009 - Harold Vance Department of ...
Crisman Annual Report 2009 - Harold Vance Department of ...
Crisman Annual Report 2009 - Harold Vance Department of ...
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Pretreatment Options to Allow Re-Use <strong>of</strong> Frac Flowback and Produced Brine<br />
(Desalination Process)<br />
Objectives<br />
Our objective is to identify a reliable and cost-effective<br />
pre-treatment method which allows the treatment<br />
and re-use <strong>of</strong> field-produced brine and fracture flowback<br />
waters. The project aims to develop a mobile<br />
and multifunctional water treatment specifically for<br />
“pre-treatment” <strong>of</strong> field waste brine. The project is<br />
part <strong>of</strong> the multi-sponsor Environmentally Friendly<br />
Drilling (EFD) program.<br />
Approach<br />
This project seeks to identify, develop, and<br />
demonstrate cost-effective technologies that will<br />
achieve volume reduction <strong>of</strong> liquid wastes while<br />
simultaneously producing effluents that could be<br />
re-used in oil-field applications, thereby reducing<br />
environmental impacts <strong>of</strong> waste water disposal and<br />
cost. Some <strong>of</strong> the key contaminants in produced<br />
water are suspended and entrained solids (TSS)<br />
and membrane rejection <strong>of</strong> such solids is one <strong>of</strong> our<br />
goals.<br />
Accomplishments<br />
We tested different samples <strong>of</strong> produced water and<br />
frac flowback water from various sources using a<br />
GE Sepa osmotic cell with nano-membranes and<br />
ultra-filtration membranes. Data obtained allowed<br />
for comparison between the membrane and further<br />
testing to be carried out on the field using a<br />
combination <strong>of</strong> membranes to determine the best<br />
result/analysis <strong>of</strong> permeate obtained while at the<br />
same time matching this with cost. Table 1 shows<br />
the TSS removal effectiveness <strong>of</strong> this membrane filter<br />
at a low pressure. This solids removal is a significant<br />
step in the overall process train <strong>of</strong> removing oil,<br />
solids, hardness, and salinity.<br />
Significance<br />
A quantitative comparison <strong>of</strong> the analysis <strong>of</strong> the<br />
permeate is obtained at the end <strong>of</strong> filtration, from<br />
which an evaluation <strong>of</strong> membrane filtration as a way<br />
to remove suspended and entrained particles in frac<br />
flowback or produced water to create re-useable<br />
effluents can be determined.<br />
Sample<br />
Filter Used<br />
Designation<br />
Turbidity<br />
(NTU)<br />
TDS<br />
Calcium<br />
concentration<br />
(ppm)<br />
Chloride<br />
concentration<br />
(ppm)<br />
Advanced<br />
Hydrocarbons<br />
Produced<br />
Water<br />
Untreated 454 49.35 1501.54 42.3<br />
Advanced<br />
Hydrocarbon:<br />
Pretreated<br />
Advanced<br />
Hydrocarbon:<br />
Average<br />
Permeate<br />
Result<br />
Percent<br />
Reduction<br />
5micron<br />
cartridge<br />
JW<br />
ultrafilter<br />
201 43.4 1461.1 42.115<br />
CRISMAN INSTITUTE<br />
Pressure<br />
In (Psig)<br />
Pressure<br />
Out<br />
(Psig)<br />
26.85 44.55 1471.9 42.05 97.5 88.75<br />
86% 8% 2% 0%<br />
Table 1. Analysis <strong>of</strong> suspended solids removal from produced water<br />
sample. The pressure in and out shown above are average pressures for<br />
all rounds <strong>of</strong> permeate collection.<br />
Project Information<br />
4.2.9 Low Impact Oil & Gas Activity; Environmentally<br />
Friendly Drilling Systems<br />
Related Publications<br />
Oluwaseun, O., Burnett, D., Hann, R., and Haut, R.<br />
Application <strong>of</strong> Membrane Filtration Technologies to Drilling<br />
Wastes. Paper SPE 115587, presented at the 2008 SPE<br />
<strong>Annual</strong> Technical Conference and Exhibition, Denver,<br />
Colorado, 21-24 September.<br />
Contacts<br />
David Burnett<br />
979.845.2274<br />
david.burnett@pe.tamu.edu<br />
Gene Beck<br />
979.862.1138<br />
gene.beck@pe.tamu.edu<br />
Uche Eboagwu<br />
<strong>Crisman</strong> <strong>Annual</strong> <strong>Report</strong> <strong>2009</strong><br />
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