After shut-in for 5 days, Well ZB 9 resumed production and then its production greatly increased. Its daily oil production increased from 11 BOPD to 22 BOPD and waterproduction decreased from 39 BWPD to 26 BWPD.

1. www.zfatech.com
UNITED STATES
Add: 12212 Ashling Dr Stafford, TX, 77477
Tel: +1713 893 4784
CHINA
Add:Nanopolis Suzhou: NW02, Room 110,
99 JinjiLake Avenue,Jiangsu Province, P.R. China.
Zip: 215123
Tel: +86 512-6999 5236 Fax: +86 512-6999 5237
E-mail: contact@zfatech.com
Application of BERO™ Biosurfactant in Wyoming and Its Effect
Zimmerman Butte
Production 400 BOPD
Total production to date: 1,200,000 barrels
Producing Formation:
Phosphoria
Sandstone
Average of 100,000 barrels EUR of oil per well
Strong water drive resulting in 30%+ recovery per spacing unit
IP’s often greater than 400 BOPD with relatively steep decline
Field Currently at 23% recovery
BERO treated ZB 3, ZB 5, ZB 6, ZB 7, ZB 8, ZB 9, ZB F12, ZB 9-35 wells on
May 2012-Apr. 2013, result shows below:
ZB 3 shows base oil increased from 6 BOPD to 16 BOPD, Water decreased
from 43 BWPD to 30 BWPD.
ZB 5 shows base oil increased from 3 BOPD to 5 BOPD, Water decreased
from 12 BWPD to 14 BWPD.
ZB 6 shows base oil increased from 12 BOPD to 19 BOPD, Water decreased
from 49 BWPD to 28 BWPD.
ZB 7 shows base oil increased from 7 BOPD to 16 BOPD, Water decreased
from 20 BWPD to 15 BWPD.
ZB 8 shows base oil increased from 4 BOPD to 8 BOPD, Water decreased
from 36 BWPD to 30 BWPD.
ZB 9 shows base oil increased from 11 BOPD to 22 BOPD, Water decreased
from 39 BWPD to 26 BWPD.

2. www.zfatech.com
UNITED STATES
Add: 12212 Ashling Dr Stafford, TX, 77477
Tel: +1713 893 4784
CHINA
Add:Nanopolis Suzhou: NW02, Room 110,
99 JinjiLake Avenue,Jiangsu Province, P.R. China.
Zip: 215123
Tel: +86 512-6999 5236 Fax: +86 512-6999 5237
E-mail: contact@zfatech.com
ZB F12 shows base oil increased from 6 BOPD to 8 BOPD, Water decreased
from 75 BWPD to 64 BWPD.
ZB 9-35 shows base oil increased from 4 BOPD to 11 BOPD, Water decreased
from 90 BWPD to 47 BWPD.
As for Well ZB 3, the analysis result shows that the main reason for production
reduction is the plugging of the near-wellbore zone caused by organic matters
such as wax and asphalt contained in crude oil. In April 2012, BERO™
biosurfactant was mixed with formation water and injected in Well ZB 3 to
remove plugging and stimulate production and the temperature of the injection
fluid was above 122℉. During construction, pressure rose from 0 psi to 1450
psi.
After shut-in for 5 days, Well ZB 3 resumed production and then its production
greatly increased. Its daily oil production increased from 6 BOPD to 16 BOPD
and waterproduction decreased from 43 BWPD to 30 BWPD.
As for Well ZB 9, the analysis result shows that the main reason for production
reduction is the plugging of the near-wellbore zone caused by organic matters
such as wax and asphalt contained in crude oil. In April 2012, BERO™
biosurfactant was mixed with formation water and injected in Well ZB 9 to
remove plugging and stimulate production and the temperature of the injection
fluid was above 122℉. During construction, pressure rose from 0 psi to 1450
psi.

3. www.zfatech.com
UNITED STATES
Add: 12212 Ashling Dr Stafford, TX, 77477
Tel: +1713 893 4784
CHINA
Add:Nanopolis Suzhou: NW02, Room 110,
99 JinjiLake Avenue,Jiangsu Province, P.R. China.
Zip: 215123
Tel: +86 512-6999 5236 Fax: +86 512-6999 5237
E-mail: contact@zfatech.com
After shut-in for 5 days, Well ZB 9 resumed production and then its production
greatly increased. Its daily oil production increased from 11 BOPD to 22 BOPD
and waterproduction decreased from 39 BWPD to 26 BWPD.
As for Well ZB 9-35, the analysis result shows that the main reason for
production reduction is the plugging of the near-wellbore zone caused by
organic matters such as wax and asphalt contained in crude oil. In April 2012,
BERO™ biosurfactant was mixed with formation water and injected in Well ZB
9-35 to remove plugging and stimulate production and the temperature of the
injection fluid was above 122℉. During construction, pressure rose from 0 psi
to 1450 psi.

4. www.zfatech.com
UNITED STATES
Add: 12212 Ashling Dr Stafford, TX, 77477
Tel: +1713 893 4784
CHINA
Add:Nanopolis Suzhou: NW02, Room 110,
99 JinjiLake Avenue,Jiangsu Province, P.R. China.
Zip: 215123
Tel: +86 512-6999 5236 Fax: +86 512-6999 5237
E-mail: contact@zfatech.com
After shut-in for 5 days, Well ZB 9-35 resumed production and then its
production greatly increased. Its daily oil production increased from 4 BOPD to
11 BOPD and waterproduction decreased from 90 BWPD to 47 BWPD.