The Wink Sinks Winkler County, Texas

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The Wink SinksWinkler County, Texas

• Bob Trentham,
• CEED, UTPB

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Historic well and field informationWhat 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 gt10.
• 3,500 9,500 PPM TDS in 1920s 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)

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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
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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.
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2005Apache 10 has lost circulation and washout
at1800 in SaladoApache 12 well has 16 bit
drop and loses circulation. Begins to flow 100 BO
per hour.
Apache, 2005 Flowing from 1800 in Salado Salt
Gulf, 1982 Flowed 23,000 BO from ???
Wink Sink 1 1980
Arrington, 1997 Flowed 10,000 BO from ??? Still
flowing
Wink Sag 1980 - 2002
Wink Sink 2 2002
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Apache new drills
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1980 The Wink Sink formsThe 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
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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
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1980s -2002Wink Sag Anticipated location of
next sink.
Gulf, 1982 Flowed 23,000 BO from ???
Wink Sink 1 1980
Wink Sag 1980 - 2002
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1997Arrington 2 Hendrickdrilled in
1928,flowed 10,000 BO in 30 days still flowing
on choke.
Gulf, 1982 Flowed 23,000 BO from ???
Wink Sink 1 1980
Arrington, 1997 Flowed 10,000 BO from ??? Still
flowing
Wink Sag 1980 - 2002
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2002Wink Sink 2
Gulf, 1982 Flowed 23,000 BO from ???
Wink Sink 1 1980
Arrington, 1997 Flowed 10,000 BO from ??? Still
flowing
Wink Sag 1980 - 2002
Wink Sink 2 2002
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2005Apache 10 has lost circulation and washout
at1800 in SaladoApache 12 well has 16 bit
drop and loses circulation. Begins to flow 100 BO
per hour.
Apache, 2005 Flowing from 1800 in Salado Salt
Gulf, 1982 Flowed 23,000 BO from ???
Wink Sink 1 1980
Arrington, 1997 Flowed 10,000 BO from ??? Still
flowing
Wink Sag 1980 - 2002
Wink Sink 2 2002
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2005Apache 10 has lost circulation and washout
at1800 in SaladoApache 12 well has 16 bit
drop and loses circulation. Begins to flow 100 BO
per hour.
Apache, 2005 Flowing from 1800 in Salado Salt
Gulf, 1982 Flowed 23,000 BO from ???
Wink Sink 1 1980
Arrington, 1997 Flowed 10,000 BO from ??? Still
flowing
Wink Sag 1980 - 2002
2006 Apache loses well to sheared casing
Wink Sink 2 2002
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WINK SINK I
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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.
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(No Transcript)
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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

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Arco 3D East west lines indicate disrupted
reflectors in the evaporite section. The top of
the Yates (Black line) is at approximately 500ms.
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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
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WINK SINK II
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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.
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Wink Sink 2
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Wink Sink 2 looking south
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Sag Area to east of Wink Sink 2
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6 Gas Pipeline serving Wink has been exposed for
over 2 years. The depth of the fracture is
gt13. The trend of the this crack and the one
through the electric substation is independent of
Wink Sink II.