U.S. DEPARTMENT OF THE INTERIORU.S. GEOLOGICAL SURVEY

By Philip H. Nelson and Stephen L. Santus2010

Open-File Report 2010–1110Plate 3 of 6Version 1.0

Figure 3-2. First sample gas and water production

Figure 3-3. First sample gas and oil production

Figure 3-4. Gas and water production over 5-year interval

Figure 3-6. Well MV 55-29 Figure 3-7. Well MV 23-27 Figure 3-8. Well GR 14-28 Figure 3-9. Well GR 1-33R Figure 3-10. Well MV 9-32

Figure 3-11. Well 13-34 Figure 3-12. Well GR 21-3V Figure 3-13. Well MV 28-4 Figure 3-14. Well GM 13-1 Figure 3-15. Well SG 43-22

Figure 3-1. Map of wells in this study for the Mesaverde Group, Grand Valley field.

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0 2 41MILES

R96WR97W

Colorado River

39˚29' N

108˚6' W

T6S

T7S

R95W

Inters

tate 7

0

- Wells with production data shown on this plate

- Wells examined in this study

13-34 (181) - Well Number (First sample gas production in mcf/day)

- Wells not examined in this study

(

( (

(

(

(

(

(

(

(

(

(

( (

(

(

(

(

(

(

(

MV 8-4 (582)

1-M-25 (211)

GM 34-2 (522)

MV 28-4 (367)

GM 14-2 (318)

MV 9-32 (532)

MV 40-32 (322)

GR 14-28 (695)

GR 1-33R (206)

MV 53-28 (282)

MV 60-8D (212)

MV 10-23 (163)

MV 24-20 (182)

MV 55-29 (161)

SG 43-22 (132)

GV 19-36 (167)

GR 43-3V (306)

GR 21-3V (397)

(

(

(

2-M-35 (307)

GM 33-2 (162)

MV 23-27 (215)

GR 41-20 (335)

(

GV 5-33 (215)

GV 22-29 (176)

GM 202-33 (289)(

GM 13-1 (236)

13-34 (181)

Gas Production Rate (mcf/day)

101 102 103 104 105 106

Oil

Pro

duct

ion

Rat

e (b

bl/d

ay)

10-1

100

101

102

103

104

0.1 bb

l/MMCF

1 bbl/

MMCF

10 bb

l/MMCF

100 b

bl/MMCF

1000

bbl/M

MCF

10,00

0 bbl/

MMCF

No oil production:

Gas Production Rate (mcf/day)

101 102 103 104 105 106

Wat

er P

rodu

ctio

n R

ate

(bbl

/day

)

10-1

100

101

102

103

104

0.1 bb

l/MMCF

1 bbl/

MMCF

10 bb

l/MMCF

100 b

bl/MMCF

1000

bbl/M

MCF

10,00

0 bbl/

MMCF

No water production:

Figure 3-5. Normalized change in gas and water production over 5-year interval

Change in Gas Production (mcf/day)

Cha

nge

in W

ater

Pro

duct

ion

(bbl

/day

)

0

01/101/100 10

1/10

1001/100

10

100

Gas Production Rate (mcf/day)

101 102 103 104 105 106

Wat

er P

rodu

ctio

n R

ate

(bbl

/day

)

10-1

100

101

102

103

104

0.1 bb

l/MMCF

1 bbl/

MMCF

10 bb

l/MMCF

100 b

bl/MMCF

1000

bbl/M

MCF

10,00

0 bbl/

MMCF

No water production:

6,292

ft

4,797

ft

Time

1/1/1990 1/1/1995 1/1/2000 1/1/2005 1/1/2010

Gas

(mcf

/day

)

10-1

100

101

102

103

104

105

Wat

er (b

bl/d

ay)

Oil

(bbl

/day

)

10-3

10-2

10-1

100

101

102

103

GasWaterOil

ARCO MV 9-3232 6S 96W05045065170001

F, A

6 completion intervals4690 - 6494 ft

Time

1/1/1990 1/1/1995 1/1/2000 1/1/2005 1/1/2010

Gas

(mcf

/day

)

10-1

100

101

102

103

104

105

Wat

er (b

bl/d

ay)

Oil

(bbl

/day

)

10-3

10-2

10-1

100

101

102

103

GasWaterOil

BOSELY SG 43-2222 7S 96W NE SE05045072430000

F, A

5 completion intervals3595 - 4996 ft

Time

1/1/1990 1/1/1995 1/1/2000 1/1/2005 1/1/2010

Gas

(mcf

/day

)

10-1

100

101

102

103

104

105

Wat

er (b

bl/d

ay)

Oil

(bbl

/day

)

10-3

10-2

10-1

100

101

102

103

GasWaterOil

UNOCAL GR 1-33R33 6S 96W SW NE05045071890000

F, A

3 completion intervals4656 - 6218 ft

Time

1/1/1990 1/1/1995 1/1/2000 1/1/2005 1/1/2010

Gas

(mcf

/day

)

10-1

100

101

102

103

104

105

Wat

er (b

bl/d

ay)

Oil

(bbl

/day

)

10-3

10-2

10-1

100

101

102

103

GasWaterOil

UNOCAL GM 13-11 7S 96W NW SW05045070560000

F, A

4 completion intervals4947 - 6566 ft

Time

1/1/1990 1/1/1995 1/1/2000 1/1/2005 1/1/2010

Gas

(mcf

/day

)

10-1

100

101

102

103

104

105

Wat

er (b

bl/d

ay)

Oil

(bbl

/day

)

10-3

10-2

10-1

100

101

102

103

GasWaterOil

UNOCAL GR 14-2828 6S 96W SW SW SW05045068390000

F, A

4 completion intervals4797 - 6186 ft

Time

1/1/1990 1/1/1995 1/1/2000 1/1/2005 1/1/2010

Gas

(mcf

/day

)

10-1

100

101

102

103

104

105

Wat

er (b

bl/d

ay)

Oil

(bbl

/day

)

10-3

10-2

10-1

100

101

102

103

GasWaterOil

OXY USA INC MV 28-44 7S 96W NW SE NW05045067870000

F, A

5 completion intervals4571 - 6019 ft

Time

1/1/1990 1/1/1995 1/1/2000 1/1/2005 1/1/2010

Gas

(mcf

/day

)

10-1

100

101

102

103

104

105

Wat

er (b

bl/d

ay)

Oil

(bbl

/day

)

10-3

10-2

10-1

100

101

102

103

GasWaterOil

MOBIL MV 23-2727 6S 96W SE NE NE05045065390000

F, A

4 completion intervals5718 - 7065 ft

Time

1/1/1990 1/1/1995 1/1/2000 1/1/2005 1/1/2010

Gas

(mcf

/day

)

10-1

100

101

102

103

104

105

Wat

er (b

bl/d

ay)

Oil

(bbl

/day

)

10-3

10-2

10-1

100

101

102

103

GasWaterOil

FEDERAL GR 21-3V3 7S 96W NW NW05045068020001

F, A

6 completion intervals4420 - 5957 ft

Time

1/1/1990 1/1/1995 1/1/2000 1/1/2005 1/1/2010

Gas

(mcf

/day

)

10-1

100

101

102

103

104

105

Wat

er (b

bl/d

ay)

Oil

(bbl

/day

)

10-3

10-2

10-1

100

101

102

103

GasWaterOil

CHEVRON MV 55-2929 6S 96W SE NE NW05045068220000

F, A

4 completion intervals5034 - 6342 ft

Time

1/1/1990 1/1/1995 1/1/2000 1/1/2005 1/1/2010

Gas

(mcf

/day

)

10-1

100

101

102

103

104

105

Wat

er (b

bl/d

ay)

Oil

(bbl

/day

)

10-3

10-2

10-1

100

101

102

103

GasWaterOil

RMV 13-3434 6S 96W NW SW05045071330000

F, A

4 completion intervals4687 - 6292 ft

108˚ W 107˚30' W

39˚45' N

39˚15' N

Locations of the 27 wells that were studies are shown in figure 3-1. Gas and water production at the first sample time is summarized in figure 3-2, with gas and oil production at the first sample time in figure 3-3. Changes in water and gas production over 5-year intervals are shown as vectors in figure 3-4, with the normal-ized vectors in figure 3-5. Production plots for 10 of these 27 wells are shown in figures 3-6 through 3-15; API number is given below section, township, and range for each well. Daily production rates for gas are computed at times indicated by circles on the two vertical lines in the production plots. [mcf, thousand cubic feet; mmcf, million cubic feet; bbl, barrels; F, hydraulically fractured; A, acidized]

Extent of drilling in 2009