US5655602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and process for drilling and completing multiple wells
Assignee: Marathon Oil Co
•
Filing: 1995-07-26
•
Granted: 1997-08-12
•
Expires: 2015-07-26
Abstract
Abstract A subterranean well system and a process for drilling and completing such a system from a first subterranean well bore which extends to the surface of the earth. A second well bore may be drilled from the first well bore and a first tubular of a multiple well drilling template can be positioned within the first well bore while a second tubular of the template can be positioned within both the first and second well bores. Additionally, a third well bore can be drilled from the first well bore and the first tubular can be further positioned therein. The first and second well bores can penetrate subterranean formation(s) or additional well bore(s) can be drilled from the first, second and/or third well bores so as to penetrate subterranean formations. A second multiple well drilling template may be utilized to drill such additional well bore(s) from the second or third well bores. Fluid is produced from subterranean formation(s) to the surface via said first, second, third and/or additional well bores and/or through production casing and/or tubing positioned therein.
Inventors
- 👤 Gary J. Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:01
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/004; E21B23/006; E21B23/08; E21B23/12; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/047; E21B43/00; E21B43/14; E21B43/30; E21B43/305; E21B7/00; E21B7/04; E21B7/043; E21B7/06; E21B7/061; E21B7/068; E21B43/01; E21B43/017
Claims Analysis
Total Claims: 122
Claim 1
Independent Claim
65 words
A subterranean well system comprising: a first subterranean well bore extending to the surface of the earth; a second subterranean well bore drilled from the first well bore; and a first tubular of a drilling and completion template which is positioned within said first well bore; and a second tubular of said template which is positioned within both said first and said second well bores.
Claim 2
Dependent Claim
65 words
A subterranean well system comprising: a first subterranean well bore extending to the surface of the earth; a second subterranean well bore drilled from the first well bore; and a first tubular of a drilling and completion template which is positioned within said first well bore; and a second tubular of said template which is positioned within both said first and said second well bores.
Claim 3
Dependent Claim
27 words
The system of claim 1 wherein said first tubular is in fluid communication with a first formation to convey fluids from said first formation to the surface.
Claim 4
Dependent Claim
40 words
The system of claim 1 further comprising: a first length of production casing extending from the surface of the earth into said first tubular and for conveying fluid produced from a first formation through said first tubular to the surface.
Claim 5
Dependent Claim
21 words
The system of claim 3 further comprising: production tubing positioned within said first tubular and said first length of production casing.
Claim 6
Dependent Claim
28 words
The system of claim 1 wherein said second tubular is in fluid communication with a second subterranean formation to convey fluids from said second formation to the surface.
Claim 7
Dependent Claim
41 words
The system of claim 5 further comprising: a second length of production casing extending from the surface of the earth into said second tubular and for conveying fluid produced from said second subterranean formation through said second tubular to the surface.
Claim 8
Dependent Claim
21 words
The system of claim 6 further comprising: production tubing positioned within said second tubular and said second length of production casing.
Claim 9
Dependent Claim
18 words
The system of claim 1 further comprising: a third subterranean well bore drilled from said second well bore.
Claim 10
Dependent Claim
25 words
The system of claim 8 wherein said first well bore penetrates a first subterranean formation and said third well bore penetrates a second subterranean formation.
Claim 11
Dependent Claim
45 words
The system of claim 9 further comprising: a first length of production casing extending from said second tubular and into said third well bore so as to establish fluid communication with said second formation for conveying fluid produced from said second formation to the surface.
Claim 12
Dependent Claim
38 words
The system of claim 10 further comprising: a second length of production casing extending from the surface of the earth into said third length of production casing for conveying fluid produced from said second formation to the surface.
Claim 13
Dependent Claim
20 words
The system of claim 11 further comprising: production tubing positioned within said first and said second lengths of production casing.
Claim 14
Dependent Claim
18 words
The system of claim 1 further comprising: a fourth subterranean well bore drilled from said first well bore.
Claim 15
Dependent Claim
26 words
The system of claim 13 further wherein said fourth well bore penetrates a first subterranean formation and said second well bore penetrates a second subterranean formation.
Claim 16
Dependent Claim
45 words
The system of claim 14 further comprising: a first length of production casing extending from said first tubular and into said fourth well bore so as to establish fluid communication with said first formation for conveying fluid produced from said first formation to the surface.
Claim 17
Dependent Claim
38 words
The system of claim 15 further comprising: a second length of production casing extending from the surface of the earth into said fifth length of production casing for conveying fluid produced from said first formation to the surface.
Claim 18
Dependent Claim
20 words
The system of claim 16 further comprising: production tubing positioned within said first and said second lengths of production casing.
Claim 19
Dependent Claim
13 words
The system of claim 1 wherein said first well bore is generally vertical.
Claim 20
Dependent Claim
12 words
The system of claim 1 wherein said first well bore is deviated.
Claim 21
Dependent Claim
14 words
The system of claim 9 wherein said second and third well bores are deviated.
Claim 22
Dependent Claim
12 words
The system of claim 14 wherein said fourth well bore is deviated.
Claim 23
Dependent Claim
36 words
The system of claim 1 wherein said first well bore penetrates a first subterranean formation and said second well bore penetrates a second subterranean formation, said first and said second subterranean formations being the same formation.
Claim 24
Dependent Claim
36 words
The system of claim 1 wherein said first well bore penetrates a first subterranean formation and said second well bore penetrates a second subterranean formation, said first subterranean formation being distinct from said second subterranean formation.
Claim 25
Dependent Claim
21 words
The system of claim 1 wherein said template is secured to said first well bore at the surface of the earth.
Claim 26
Dependent Claim
19 words
The system of claim 1 wherein said template is secured within said first well bore at a subterranean location.
Claim 27
Dependent Claim
79 words
A subterranean well system comprising: a first subterranean well bore extending to the surface of the earth; a second subterranean well bore drilled from the first well bore; a third subterranean well bore drilled from the first well bore; a first tubular of a drilling and completion template which is positioned within both said first and said second well bores; and a second tubular of said template which is positioned within both said first and said third well bores.
Claim 28
Dependent Claim
79 words
A subterranean well system comprising: a first subterranean well bore extending to the surface of the earth; a second subterranean well bore drilled from the first well bore; a third subterranean well bore drilled from the first well bore; a first tubular of a drilling and completion template which is positioned within both said first and said second well bores; and a second tubular of said template which is positioned within both said first and said third well bores.
Claim 29
Dependent Claim
27 words
The system of claim 26 wherein said first tubular is in fluid communication with a first formation to convey fluid from said first formation to the surface.
Claim 30
Dependent Claim
24 words
The system of claim 27 further comprising: production tubing positioned within said first tubular for conveying fluid from said first formation to the surface.
Claim 31
Dependent Claim
26 words
The system of claim 26 further comprising: a fourth subterranean well bore drilled from said second well bore so as to penetrate a first subterranean formation.
Claim 32
Dependent Claim
41 words
The system of claim 29 further comprising: a first length of production casing extending from the surface of the earth through said first tubular and into said fourth well bore for conveying fluid produced from said first formation to the surface.
Claim 33
Dependent Claim
57 words
The system of claim 26 further comprising: a fourth subterranean well bore drilled from said second well bore so as to penetrate a first subterranean formation; and a first length of production casing extending from said first tubular and into said fourth well bore for conveying fluid produced from said first formation to said first well bore.
Claim 34
Dependent Claim
17 words
The system of claim 30 further comprising: production tubing positioned within said first length of production casing.
Claim 35
Dependent Claim
18 words
The system of claim 27 wherein said second tubular is in fluid communication with a second subterranean formation.
Claim 36
Dependent Claim
24 words
The system of claim 27 further comprising: production tubing positioned within said second tubular for conveying fluid from a second formation to the surface.
Claim 37
Dependent Claim
26 words
The system of claim 29 further comprising: a fifth subterranean well bore drilled from said third well bore so as to penetrate a second subterranean formation.
Claim 38
Dependent Claim
41 words
The system of claim 35 further comprising: a second length of production casing extending from the surface of the earth through said second tubular and into said fifth well bore for conveying fluid produced from said second formation to the surface.
Claim 39
Dependent Claim
57 words
The system of claim 29 further comprising: a fifth subterranean well bore drilled from said third well bore so as to penetrate a second subterranean formation; and a second length of production casing extending from said second tubular and into said fifth well bore for conveying fluid produced from said second formation to said first well bore.
Claim 40
Dependent Claim
17 words
The system of claim 36 further comprising: production tubing positioned within said second length of production casing.
Claim 41
Dependent Claim
21 words
The system of claim 26 wherein said template is secured to said first well bore at the surface of the earth.
Claim 42
Dependent Claim
101 words
A subterranean well system comprising: a first subterranean well bore extending to the surface of the earth; a second subterranean well bore drilled from the first well bore; a third subterranean well bore drilled from the first well bore; a fourth subterranean well bore drilled from said second well bore; a fifth subterranean well bore drilled from said third well bore; a first tubular of a drilling and completion template which is positioned within both said first and said second well bores; and a second tubular of said template which is positioned within both said first and said third well bores.
Claim 43
Dependent Claim
101 words
A subterranean well system comprising: a first subterranean well bore extending to the surface of the earth; a second subterranean well bore drilled from the first well bore; a third subterranean well bore drilled from the first well bore; a fourth subterranean well bore drilled from said second well bore; a fifth subterranean well bore drilled from said third well bore; a first tubular of a drilling and completion template which is positioned within both said first and said second well bores; and a second tubular of said template which is positioned within both said first and said third well bores.
Claim 44
Dependent Claim
25 words
The system of claim 40 wherein said third well bore penetrates a first subterranean formation and said fifth well bore penetrates a second subterranean formation.
Claim 45
Dependent Claim
64 words
The system of claim 41 further comprising: a first length of production casing extending from said first tubular and into said fourth well bore for conveying fluid produced from said first formation to the surface; and a second length of production casing extending from said second tubular and into said fifth well bore for conveying fluid produced from said second formation to the surface.
Claim 46
Dependent Claim
76 words
The system of claim 41 further comprising: a first length of production casing extending from the surface of the earth through said first tubular and into said fourth well bore for conveying fluid produced from said first formation to the surface; and a second length of production casing extending from the surface of the earth through said second tubular and into said fifth well bore for conveying fluid produced from said second formation to the surface.
Claim 47
Dependent Claim
52 words
The system of claim 43 further comprising: first production tubing positioned within said first length of production casing for conveying fluid produced from said first formation to the surface; and second production tubing positioned within said second length of production casing for conveying fluid produced from said second formation to the surface.
Claim 48
Dependent Claim
13 words
The system of claim 40 wherein said first well bore is generally vertical.
Claim 49
Dependent Claim
12 words
The system of claim 40 wherein said first well bore is deviated.
Claim 50
Dependent Claim
14 words
The system of claim 40 wherein said second and third well bores are deviated.
Claim 51
Dependent Claim
17 words
The system of claim 41 wherein said first and said second subterranean formations are the same formation.
Claim 52
Dependent Claim
21 words
The system of claim 40 wherein said template is secured to said first well bore at the surface of the earth.
Claim 53
Dependent Claim
19 words
The system of claim 40 wherein said template is secured within said first well bore at a subterranean location.
Claim 54
Dependent Claim
67 words
A subterranean well system comprising: a first subterranean well bore extending to the surface of the earth; a first tubular of a first template which is positioned within said first well bore and a second tubular of said first template which is positioned within said first well bore; and at least two wells drilled by means of a second template which is secured to said second tubular.
Claim 55
Dependent Claim
67 words
A subterranean well system comprising: a first subterranean well bore extending to the surface of the earth; a first tubular of a first template which is positioned within said first well bore and a second tubular of said first template which is positioned within said first well bore; and at least two wells drilled by means of a second template which is secured to said second tubular.
Claim 56
Dependent Claim
18 words
The system of claim 51 wherein said at least two wells are drilled from said first well bore.
Claim 57
Dependent Claim
45 words
The system of claim 51 further comprising: a second subterranean well bore drilled from the first well bore, said second tubular being positioned within both said first and said second well bores and said at least two wells being drilled from said second well bore.
Claim 58
Dependent Claim
65 words
The system of claim 53 further comprising: a first length of production casing extending from said second template into one of said two wells which are drilled from said second well bore and in fluid communication with a first formation penetrated by said one of said two wells for producing fluids from said first formation to the surface of the earth via said first tubular.
Claim 59
Dependent Claim
44 words
The system of claim 54 further comprising: a second length of production casing extending from said second template to the surface for producing fluids from said first formation to the surface of the earth via said first and said second lengths of production casing.
Claim 60
Dependent Claim
19 words
The system of claim 55 further comprising: production tubing positioned within said first and second lengths of production casing.
Claim 61
Dependent Claim
57 words
The system of claim 54 further comprising: a third length of production casing extending from said second template into another of said two wells which are drilled from said second well bore and in fluid communication with a second formation for producing fluids from said second formation to the surface of the earth via said second tubular.
Claim 62
Dependent Claim
17 words
The system of claim 57 wherein said first and said second subterranean formations are the same formation.
Claim 63
Dependent Claim
17 words
The system of claim 57 wherein said first subterranean formation is distinct from said second subterranean formation.
Claim 64
Dependent Claim
95 words
The system of claim 55 further comprising: a third length of production casing extending from said second template into another of said two wells which am drilled from said second well bore and in fluid communication with a second formation for producing fluids from said second formation to the surface of the earth via said first tubular; and a fourth length of production casing extending from said second template to the surface for producing fluids from said second formation to the surface of the earth via said third and said fourth lengths of production casing.
Claim 65
Dependent Claim
17 words
The system of claim 60 wherein said first and said second subterranean formations are the same formation.
Claim 66
Dependent Claim
19 words
The system of claim 60 further comprising: production tubing positioned within said third and fourth lengths of production casing.
Claim 67
Dependent Claim
34 words
The system of claim 51 further comprising: at least two wells drilled from said first well bore into a subterranean formation by means of a third template which is secured to said first tubular.
Claim 68
Dependent Claim
70 words
A process for drilling and completing subterranean wells via a first well bore which extends from the surface of the earth to a depth, said process comprising: drilling a second subterranean well bore from the first well bore; positioning a first tubular of a drilling and completion template within said first well bore; and positioning a second tubular of said template within both said first and said second well bores.
Claim 69
Dependent Claim
70 words
A process for drilling and completing subterranean wells via a first well bore which extends from the surface of the earth to a depth, said process comprising: drilling a second subterranean well bore from the first well bore; positioning a first tubular of a drilling and completion template within said first well bore; and positioning a second tubular of said template within both said first and said second well bores.
Claim 70
Dependent Claim
26 words
The process of claim 64 further wherein said first well bore penetrates a first subterranean formation and said second well bore penetrates a second subterranean formation.
Claim 71
Dependent Claim
28 words
The process of claim 65 further comprising: placing said first tubular in fluid communication with said first formation; and producing fluids from said first formation to the surface.
Claim 72
Dependent Claim
31 words
The process of claim 66 further comprising: positioning a first length of production casing from the surface into said first tubular; and producing fluid from said first formation to the surface.
Claim 73
Dependent Claim
37 words
The process of claim 67 further comprising: positioning production tubing within said first tubular and said first length of production casing; and sealing the annulus defined between said first length of production casing and said production tubing.
Claim 74
Dependent Claim
29 words
The process of claim 64 further comprising: placing said second tubular in fluid communication with a second subterranean formation; and producing fluid from said second formation to the surface.
Claim 75
Dependent Claim
34 words
The process of claim 69 further comprising: positioning a second length of production casing from the surface of the earth into said second tubular; and producing fluid from said second formation to the surface.
Claim 76
Dependent Claim
37 words
The process of claim 70 further comprising: positioning production tubing within said second tubular and said second length of production casing; and sealing the annulus defined between said second length of production casing and said production tubing.
Claim 77
Dependent Claim
18 words
The process of claim 64 further comprising: drilling a third subterranean well bore from said second well bore.
Claim 78
Dependent Claim
25 words
The process of claim 72 wherein said first well bore penetrates a first subterranean formation and said third well bore penetrates a second subterranean formation.
Claim 79
Dependent Claim
54 words
The process of claim 73 further comprising: positioning a third length of production casing from the surface of the earth through said second tubular and into said third well bore; placing said third length of production casing in fluid communication with said second formation; and producing fluid from said second formation to the surface.
Claim 80
Dependent Claim
38 words
The process of claim 74 further comprising: positioning a fourth length of production casing from the surface of the earth into said third length of production casing for conveying fluid produced from said second formation to the surface.
Claim 81
Dependent Claim
35 words
The process of claim 75 further comprising: positioning production tubing within said third and said fourth lengths of production casing, sealing the annulus defined between said third length of production casing and said production tubing.
Claim 82
Dependent Claim
18 words
The process of claim 64 further comprising: drilling a fourth subterranean well bore from said first well bore.
Claim 83
Dependent Claim
26 words
The process of claim 77 further wherein said fourth well bore penetrates a first subterranean formation and said second well bore penetrates a second subterranean formation.
Claim 84
Dependent Claim
54 words
The process of claim 78 further comprising: positioning a fifth length of production casing from the surface of the earth through said first tubular and into said fourth well bore; placing said fifth length of production casing in fluid communication with said first formation; and producing fluid from said first formation to the surface.
Claim 85
Dependent Claim
38 words
The system of claim 79 further comprising: positioning a sixth length of production casing from the surface of the earth into said fifth length of production casing for conveying fluid produced from said first formation to the surface.
Claim 86
Dependent Claim
36 words
The process of claim 80 further comprising: positioning production tubing within said fifth and said sixth lengths of production casing; and sealing the annulus defined between said fifth length of production casing and said production tubing.
Claim 87
Dependent Claim
21 words
The process of claim 64 further comprising: securing said template to said first well bore at the surface of the earth.
Claim 88
Dependent Claim
19 words
The process of claim 64 further comprising: securing said template within said first well bore at a subterranean location.
Claim 89
Dependent Claim
82 words
A process for drilling and completing a subterranean well system from a first subterranean well bore extending to the surface of the earth comprising: drilling a second subterranean well bore from the first well bore; drilling a third subterranean well bore from the first well bore; positioning a first tubular of a drilling and completion template within both said first and said second well bores; and positioning a second tubular of said template within both said first and said third well bores.
Claim 90
Dependent Claim
82 words
A process for drilling and completing a subterranean well system from a first subterranean well bore extending to the surface of the earth comprising: drilling a second subterranean well bore from the first well bore; drilling a third subterranean well bore from the first well bore; positioning a first tubular of a drilling and completion template within both said first and said second well bores; and positioning a second tubular of said template within both said first and said third well bores.
Claim 91
Dependent Claim
25 words
The process of claim 84 wherein said second well bore penetrates a first subterranean formation and said third well bore penetrates a second subterranean formation.
Claim 92
Dependent Claim
28 words
The process of claim 85 further comprising: placing said first tubular in fluid communication with said first formation; and producing fluid from said first formation to the surface.
Claim 93
Dependent Claim
29 words
The process of claim 86 further comprising: positioning production tubing within said first tubular, said fluid being produced from said first formation to the surface via said production tubing.
Claim 94
Dependent Claim
26 words
The process of claim 87 further comprising: drilling a fourth subterranean well bore from said second well bore so as to penetrate a first subterranean formation.
Claim 95
Dependent Claim
40 words
The process of claim 84 further comprising: positioning a first length of production casing from the surface of the earth through the first tubular and into said fourth well bore; and producing fluid from said first formation to the surface.
Claim 96
Dependent Claim
33 words
The process of claim 89 further comprising: positioning production tubing within said first length of production casing; and sealing the annulus defined between said first length of production casing and said production tubing.
Claim 97
Dependent Claim
46 words
The process of claim 88 further comprising: positioning a first length of production casing from said first tubular and into said fourth well bore; and producing fluid from said first formation to the surface via said first length of production casing and said first well bore.
Claim 98
Dependent Claim
18 words
The process of claim 86 wherein said second tubular is in fluid communication with said second subterranean formation.
Claim 99
Dependent Claim
28 words
The process of claim 92 further comprising: positioning production tubing within said second tubular; and producing fluid from said second formation to the surface via said production tubing.
Claim 100
Dependent Claim
26 words
The process of claim 88 further comprising: drilling a fifth subterranean well bore from said third well bore so as to penetrate a second subterranean formation.
Claim 101
Dependent Claim
47 words
The process of claim 94 further comprising: positioning a second length of production casing from the surface of the earth through said second tubular and into said fifth well bore; and producing fluid from said second formation to the surface via said second length of production casing.
Claim 102
Dependent Claim
33 words
The process of claim 95 further comprising: positioning production tubing within said second length of production casing; and sealing the annulus defined between said first length of production casing and said production tubing.
Claim 103
Dependent Claim
48 words
The process of claim 94 further comprising: positioning a second length of production casing from said second tubular into said fifth well bore; and producing fluid from said second formation to the surface of the earth via said second length of production casing and said first well bore.
Claim 104
Dependent Claim
21 words
The process of claim 88 further comprising: securing said template to said first well bore at the surface of the earth.
Claim 105
Dependent Claim
69 words
A process for drilling and completing a subterranean well system from a first subterranean well bore extending to the surface of the earth, said process comprising: positioning a first tubular of a first template within said first well bore; positioning a second tubular of said first template within said first well bore; and drilling at least two wells through a second template which is secured to said second tubular.
Claim 106
Dependent Claim
69 words
A process for drilling and completing a subterranean well system from a first subterranean well bore extending to the surface of the earth, said process comprising: positioning a first tubular of a first template within said first well bore; positioning a second tubular of said first template within said first well bore; and drilling at least two wells through a second template which is secured to said second tubular.
Claim 107
Dependent Claim
18 words
The process of claim 99 wherein said at least two wells are drilled from said first well bore.
Claim 108
Dependent Claim
45 words
The process of claim 99 further comprising: drilling a second subterranean well bore from the first well bore, said second tubular being positioned within both said first and said second well bores and said at least two wells being drilled from said second well bore.
Claim 109
Dependent Claim
20 words
The process of claim 101 wherein said second template is secured to said second tubular within said second well bore.
Claim 110
Dependent Claim
72 words
The process of claim 101 further comprising: positioning a first length of production casing from said second template into one of said two wells which are drilled from said second well bore; producing fluid from a first formation penetrated by said one of said two wells to the surface of the earth via said first length of production casing which is in fluid communication with said first formation and said second tubular.
Claim 111
Dependent Claim
45 words
The process of claim 103 further comprising: positioning a second length of production casing from said second template to the surface for conveying fluid produced from said first formation to the surface of the earth via said first and said second lengths of production casing.
Claim 112
Dependent Claim
35 words
The process of claim 104 further comprising: positioning production tubing within said first and second lengths of production casing; and sealing the annulus defined between said first length of production casing and said production tubing.
Claim 113
Dependent Claim
73 words
The process of claim 103 further comprising: positioning a third length of production casing from said second template into another of said two wells which are drilled from said second well bore; and producing fluid from a second formation penetrated by said another of said two wells to the surface of the earth via said third length of production casing which is in fluid communication with said second formation and said second tubular.
Claim 114
Dependent Claim
84 words
The process of claim 104 further comprising: positioning a third length of production casing from said second template into another of said two wells which are drilled from said second well bore, said third length of production casing being in fluid communication with said second formation; and positioning a fourth length of production casing from said second template to the surface; and producing fluid from said second formation to the surface of the earth via said third and said fourth lengths of production casing.
Claim 115
Dependent Claim
35 words
The process of claim 107 further comprising: positioning production tubing within said third and fourth lengths of production casing; and sealing the annulus defined between said first length of production casing and said production tubing.
Claim 116
Dependent Claim
34 words
The process of claim 99 further comprising: drilling at least two wells from said first well bore into a subterranean formation by means of a third template which is secured to said first tubular.
Claim 117
Dependent Claim
72 words
A subterranean well system comprising: a first subterranean well bore extending to the surface of the earth, said first well bore being generally vertical; a second subterranean well bore drilled from the first well bore; and a first tubular of a drilling and completion template which is positioned within said first well bore; and a second tubular of said template which is positioned within both said first and said second well bores.
Claim 118
Dependent Claim
72 words
A subterranean well system comprising: a first subterranean well bore extending to the surface of the earth, said first well bore being generally vertical; a second subterranean well bore drilled from the first well bore; and a first tubular of a drilling and completion template which is positioned within said first well bore; and a second tubular of said template which is positioned within both said first and said second well bores.
Claim 119
Dependent Claim
71 words
A subterranean well system comprising: a first subterranean well bore extending to the surface of the earth, said first well bore being deviated; a second subterranean well bore drilled from the first well bore; and a first tubular of a drilling and completion template which is positioned within said first well bore; and a second tubular of said template which is positioned within both said first and said second well bores.
Claim 120
Dependent Claim
71 words
A subterranean well system comprising: a first subterranean well bore extending to the surface of the earth, said first well bore being deviated; a second subterranean well bore drilled from the first well bore; and a first tubular of a drilling and completion template which is positioned within said first well bore; and a second tubular of said template which is positioned within both said first and said second well bores.
Claim 121
Dependent Claim
94 words
A subterranean well system comprising: a first subterranean well bore extending to the surface of the earth; a second subterranean well bore drilled from the first well bore; a third subterranean well bore drilled from the first well bore; a first tubular of a drilling and completion template which is positioned within both said first and said second well bores, said template being secured to said first well bore at the surface of the earth; and a second tubular of said template which is positioned within both said first and said third well bores.
Claim 122
Dependent Claim
94 words
A subterranean well system comprising: a first subterranean well bore extending to the surface of the earth; a second subterranean well bore drilled from the first well bore; a third subterranean well bore drilled from the first well bore; a first tubular of a drilling and completion template which is positioned within both said first and said second well bores, said template being secured to said first well bore at the surface of the earth; and a second tubular of said template which is positioned within both said first and said third well bores.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-08-11 | 2001-02-10 | 2001-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-08-11 | 2005-02-10 | 2005-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-08-11 | 2009-02-10 | 2009-08-12 | $7700.00 | Window Closed / Lapsed |