The Wink SinksWinkler County, Texas

Bob Trentham,

CEED, UTPB

Historic well and field information:What do we know?

• Wells were drilled to 300 to 900’ where 15 ½” or 12 ½’ casing was set and cemented to protect surface water. Drilled to the top of the Tansill and 8 5/8” cemented with 500 – 600 sacks of cement. Drilled to TD and produced Open Hole or with liner.

• By 1930, some wells were making as much as 20,000 BW and 50 BO.

• Earthen, unlined pits were used for storage of oil and water. It was assumed the water would evaporate. In places, however, the water table rose >10’.

• 3,500 – 9,500 PPM TDS in 1920’s produced water. • 99,000 PPM TDS in water “passing through salt section”. • In 1956, 350,000 BWPD was still being diverted to disposal pits at

about the time when water floods were starting. • Many irregularities in subsurface maps are due largely to errors in

measurement resulting from crooked holes (Ackers, et.al., 1930, p.934)

Southern Crude #T-88-N-3, Sec

28, Blk 26, Showing 400 dip

on beds at 2350’. The hole

was 320 off vertical.

Ackers, et.al, 1930

Southern Crude #T-88-P-1 Hendrick showing collapse in

the “anhydrite section”. In 1928.

This had to be present PRIOR to

any oil and gas activity in the area.

2005Apache #10

has lost circulation

and washout at~1800’ in

SaladoApache #12 well has 16’ bit drop and

loses circulation.

Begins to flow 100 BO per

hour.

Apache, 2005Flowing from 1800’ in Salado Salt

Gulf, 1982 Flowed 23,000 BO from ???

Arrington, 1997 Flowed 10,000 BO from ??? Still flowing

Wink Sink 1 1980

Wink Sink 2 2002

Wink Sag1980 - 2002

Apache new drills

150

100

Hendrick T88N #12

HENDRICK T88N #14

HENDRICK T88Q #10

Hendrick T88N #13

SO

SO

ELDER J HIDA HENDRICK-1

8/52

FIELDS BERT ET ALIDA HENDRICK A-1

12/50

SAXET OIL COHENDRICK IDA C-16X

YUCCA ENERGY INCORPORATEDIDA HENDRICK-6

1/54

YUCCA ENERGY INCORPORATEDHENDRICK-7

12/54

YUCCA ENERGY INCORPORATEDIDA HENDRICK-9

9/55

YUCCA ENERGY INCORPORATEDIDA HENDRICK-5

7/54

YUCCA ENERGY INCORPORATEDIDA HENDRICK-2

5/55

YUCCA ENERGY INCORPORATEDIDA HENDRICK-1

7/53

SOUTHERN CRUDE CORPHENDRICK T-88 N-1

10/28

SOUTHERN CRUDE CORPHENDRICK T-88 O-3

3/29

SOUTHERN CRUDE&DIXIEHENDRICK T-88 Q-1

10/28

AMOCO PRODUCTION COMPANYHENDRICK T-88 Q-2

2/29

AMOCO PRODUCTION COMPANYHENDRICK T-88 R-1

9/28

SOUTHERN CRUDE&DIXIEHENDRICK T-88 R-2

9/28

SOUTHERN CRUDE CORPHENDRICK T-88 R-3

4/29

SOUTHERN CRUDE CORPHENDRICK T-88 N-2

7/28

APACHE CORPORATIONHENDRICK T-88 N-3

9/28

APACHE CORPORATIONHENDRICK T-88 N-4

9/28

PAN AMERICANHENDRICK T-88 N-5

10/28

SOUTHERN CRUDE CORPHENDRICK T-88 N-6

4/29

4/29

AMOCO PRODUCTION COMPANYHENDRICK T-88 O-2

11/28

SOUTHERN CRUDE&DIXIEHENDRICK T-88 O-4

4/29

PAN AMERICANHENDRICK T-88 P-2

5/29

SOUTHERN CRUDE&DIXIEHENDRICK T-88 S-3

10/28

STANOLND OIL COHENDRICK T-88 Q-5

12/55

MAS OPERATING COMPANYIDA HENDRICK C-16

2/59

PAN AMERICANHENDRICK T-88-Q-7

3/68

PAN AMERICANHENDRICK IDA T-88-O-5

3/68

PAN AMERICANHENDRICK IDA T88S-6

5/68

APACHEHENDRICK IDA T-88-N-13

APACHE CORPORATIONHENDRICK IDA`T-88-N-10

3/83

APACHE CORPORATIONHENDRICK IDA T-88-O-6

8/84

APACHE CORPORATIONHENDRICK IDA T-88-O-7

12/84

APACHE CORPORATIONHENDRICK IDA `T-88-N-11

12/87

APACHE CORPORATIONHENDRICK IDA `T-88-Q-9

11/87

YUCCA ENERGY INCORPORATEDHENDRICK IDA-4

10/93

APACHEHENDRICK IDA T-88-N 12

APACHEHENDRICK IDA T88Q 10

APACHEHENDRICK IDA T88N 14

Apache Corp.

WINKLER CO., TEXAS

Hendrick Field

Seven Rivers Structure

2005 Locations

FEET

0 565

POSTED WELL DATA

OperatorWell Label

WELL - SPUD_DATE

WELL SYMBOLSLocation Only

Oil Well

Gas Well

Dry Hole

Injection Well

Junked Dry Hole

Plugged & Abandoned Oil Well

SODry Hole With Oil Show

Temporarily Abandoned

Abandoned Oil Well

By: J. LeBeau

January 19, 2005

PETRA 1/19/2005 9:50:44 AM

Lost Circ10' Washout

APACHE CORPORATIONHENDRICK IDA`T-88-N-10

424953156000002310 FSL 330 FEL

B26 S28

SALADO

TANSILL1 4

00

1 50

01 6

00

1 70

01 8

00

1 90

02 0

00

2 10

02 2

00

2 30

0

Lost Circ10' Washout

Lost Circ10' Washout

Hendricks Field Stratigraphic Dip XSection

HS=1

PETRA 1/19/2005 10:02:33 AM

1980 “The” Wink Sink forms

The base map is from the 1930 publication on

the Hendrick Field, Ackers et.al., AAPG,

vol 14, p.923-244. Contoured on top of

Tansill.

Wink Sink 1 1980

1982Gulf

#28 Hendrick, originally drilled in 1928, flowed

23,000 BO in 20 days…

Capitan Reef?

Gulf, 1982 Flowed 23,000 BO from ???

Wink Sink 1 1980

1980’s -2002Wink Sag

Anticipated location of next sink.

Gulf, 1982 Flowed 23,000 BO from ???

Wink Sink 1 1980

Wink Sag1980 - 2002

1997Arrington #2

Hendrickdrilled in 1928,flowed 10,000 BO in 30 days still flowing on

choke.

Gulf, 1982 Flowed 23,000 BO from ???

Arrington, 1997 Flowed 10,000 BO from ??? Still flowing

Wink Sink 1 1980

Wink Sag1980 - 2002

2002Wink Sink 2

Gulf, 1982 Flowed 23,000 BO from ???

Arrington, 1997 Flowed 10,000 BO from ??? Still flowing

Wink Sink 1 1980

Wink Sink 2 2002

Wink Sag1980 - 2002

2005Apache #10

has lost circulation

and washout at~1800’ in

SaladoApache #12 well has 16’ bit drop and

loses circulation.

Begins to flow 100 BO per

hour.

Apache, 2005Flowing from 1800’ in Salado Salt

Gulf, 1982 Flowed 23,000 BO from ???

Arrington, 1997 Flowed 10,000 BO from ??? Still flowing

Wink Sink 1 1980

Wink Sink 2 2002

Wink Sag1980 - 2002

2005Apache #10

has lost circulation

and washout at~1800’ in

SaladoApache #12 well has 16’ bit drop and

loses circulation.

Begins to flow 100 BO per

hour.

Apache, 2005Flowing from 1800’ in Salado Salt

Gulf, 1982 Flowed 23,000 BO from ???

Arrington, 1997 Flowed 10,000 BO from ??? Still flowing

Wink Sink 1 1980

Wink Sink 2 2002

Wink Sag1980 - 2002

2006 Apache “loses” well to sheared

casing

WINK SINK I

Measurement of the “ring

fractures” around Wink Sink 1

suggests the sink and the sag to the east should

be view as a couplet. The

feature in the bar ditch of SH115 is

not part of the previously

existing sets of fractures.

Hypotheses on Sink development• There are many possible causes of a cavity

which eventually results in a collapse:– Fresh waters from shallow aquifers enter borehole

and cause dissolution in Salado Salt– Existing Cenozoic collapse in Salado is enlarged by

water(s) and collapses– Brine water from surface pits enters along fractures in

shallow horizons causing dissolution– Water moving up from Capitan Reef causes

dissolution– Water lost through casing into Salado causes

dissolution

Arco 3D East west lines indicate “disrupted” reflectors in the evaporite section. The top of the Yates (Black line) is at approximately 500ms.

Although the location of the Cenozoic Alluvium “Fill Zone” is know as an area of poor quality seismic data for deeper horizons, There maybe

shallow data present that would be extremely useful to this study

WINK SINK II

The water supply wells for the city of Wink are in close proximity to Wink

Sink 2 (Gray area), and Sag

Area (Blue area) both inside the fenced area. Monitor wells,

placed between the Sink and the town are strongly recommended.

Wink Sink 2

Wink Sink 2 looking south

Sag Area to east of Wink Sink 2

6” Gas Pipeline serving Wink has been exposed for over 2 years. The depth of the fracture is >13’.

The trend of the this crack and the one through the electric substation is independent of Wink Sink II.