CA2517111C - Drilling rig floor drainage system - Google Patents
Drilling rig floor drainage system Download PDFInfo
- Publication number
- CA2517111C CA2517111C CA002517111A CA2517111A CA2517111C CA 2517111 C CA2517111 C CA 2517111C CA 002517111 A CA002517111 A CA 002517111A CA 2517111 A CA2517111 A CA 2517111A CA 2517111 C CA2517111 C CA 2517111C
- Authority
- CA
- Canada
- Prior art keywords
- drilling
- trough
- floor surface
- module
- fluids
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 74
- 239000012530 fluid Substances 0.000 claims abstract description 36
- 238000011109 contamination Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Road Paving Structures (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The present invention is a drainage system for a drilling rig comprising of a module that can be removably mounted on the rig. The module has a top panel having drainage slots disposed about its perimeter. The module further comprises a substructure containing a trough located beneath the drainage slots. The trough slopes downwardly towards an outlet aperture that extends through a sidewall of the substructure. Fluids spilled onto the module when sections of drilling pipe are tripped out from the drill string drain through the drainage slots into the trough. The trough guides the fluids through the outlet aperture where the fluids can be directed to a collection pit or vessel where they can be recycled or properly disposed of.
Description
1 "Drilling Rig Floor Drainage System"
2 Inventor: Gerald Lesko
3 FIELD OF THE INVENTION
4 The present invention relates to the field of drainage systems for drilling rigs.
More specifically, the present invention relates to a system for collecting fluids, such 6 as drilling fluid, spilt onto the drilling rig floor when sections of drilling pipe are 7 removed from the drill string.
9 Generally, drilling rigs consists of a pit, or area of ground beneath the rig, surrounding the drill pipe, which terminates in a wellhead. When sections of drilling 11 pipe are removed or "tripped out" from the drill string during drilling operations, the 12 column of drilling fluid contained in the pipe section spills onto the drilling rig floor.
13 These fluids over the edges of the drilling rig floor and fall into the pit. The spilt 14 fluids are not only a safety hazard for the workers on the rig site, they can be an environmental hazard depending on the composition of the fluids themselves.
For 16 this reason, drainage systems are needed on drilling rigs to collect drilling fluid spilt 17 onto the rig floor to improve the safety of the rig floor for the workers and to collect 18 the fluids before they reach the ground so that they can be recycled or properly 19 disposed of.
US Patent no. 5,228,506 teaches a spill collection system associated with a 21 well drilling rig or a work-over rig, and the wellhead of a borehole. The system is 22 supported from the wellhead itself, and consists of a removable impervious system 23 with four flexible open-faced panels circumferentially arranged around an apertured 24 plate member. Such an open-faced system still allows for some liquid traveling at {E5077853.DOC;1 }
1 high speed to deflect off the panel surface and spill or spray over on to the ground, 2 rather than gravitating towards the apertured plate member. This system is not 3 permanently affixed to the rig and requires assembly and disassembly each time it is 4 to be used at the rig site.
US Patent no. 5,343,943 teaches a waste fluid containment and recovery 6 apparatus for installation in-line with a piping system. The system can be combined 7 with a portable base for transportation, and a hydraulic lift whereby vertical height of 8 the system can be adjusted. Such a system can provide a grate floor to prevent spray-9 off of drilling fluid spilling on to the system, and to provide a gripping surface for workmen walking on the floor, but is wanting in its ability to collect spilt drilling 11 fluid.
12 US Patent no. 5,634,485 teaches a method and apparatus for retrofitting 13 existing drilling rigs with a catch pan, but the system fails to provide a platform upon 14 which drill workers may walk safely above the catch pan. The system is also permanently affixed in place and is unable to be moved vertically or rotatably with the 16 drill pipe.
17 It is, therefore, desirable to have a drainage system that can safely and 18 efficiently collect drilling fluid that is spilled during the drilling and servicing of a 19 well.
SUMMARY OF THE INVENTION
21 The present invention is a drainage system that is designed for use on a 22 drilling rig and is capable of collecting drilling fluid spilt during drilling and servicing 23 processes. When the drainage system is assembled and in position around the drill 24 pipe, drilling fluid waste may drain through a grid floor into a collection trough {E5077853.DOC; l }
1 underneath, and may then be then guided away from the rig for recycling or proper 2 disposal. This system may help to ensure the safety of those walking on the grid floor 3 by preventing slipping on the spilled drilling fluid, and may prevent contamination of 4 the soil surrounding the drill rig resulting from spilled drilling fluid.
The present invention comprises a drilling floor surface that forms at least a 6 portion of the drilling rig floor. The drilling floor surface can be of any suitable shape 7 but is, preferably, rectangular. A plurality of openings are disposed about the drilling 8 floor surface that allow fluids to drain through. In one embodiment, the openings are 9 sized and positioned whereby the openings are separated from one another by at least a portion of the drilling floor surface. Located underneath the drilling floor surface is 11 a trough to collect fluids that drain through the openings. The trough guides the fluids 12 to an outlet aperture. The openings may be located anywhere on the drilling floor 13 surface but are, preferably, disposed at least partially about the perimeter of the 14 drilling floor surface. Accordingly, the trough is located underneath the openings.
The trough slopes downwardly towards the outlet aperture so that fluids will naturally 16 flow towards the outlet aperture due to gravity.
17 In a preferred embodiment of the present invention, the drilling floor surface, 18 the trough and the outlet aperture are components of a structure or module that may 19 be removably mounted on a drilling rig. The module consists of a top panel comprising the drilling floor surface and a substructure comprising a bottom surface 21 and four sidewalls extending between the top panel and the bottom surface to form a 22 six-sided structure. In this embodiment, the outlet aperture extends through a sidewall 23 of the module to connect to an external drainage pipe, hose or trough to guide the 24 fluids away from the drilling rig floor.
It is an object of the present invention to provide a safe and efficient drainage 26 system for drilling rigs in the oil industry.
{E5377039.DOC;1 }
1 It is another object of the present invention to provide effective removal of 2 drilling fluid from a drilling rig, thereby preventing contamination of the soil beneath 3 the drilling rig.
4 It is yet another object of the present invention to provide a safer environment for oil rig workers working on the drilling rig floor.
6 Broadly stated, the present invention is a drainage system for draining fluids 7 from a drilling rig floor of a drilling rig, comprising a substantially horizontal drilling 8 floor surface suitable for use as a drilling rig floor, said floor surface defining at least 9 a portion of said drilling rig floor; a trough disposed underneath said drilling floor surface; a plurality of drainage openings disposed on said drilling floor surface, said 11 openings located above said trough whereby fluids on said drilling floor surface are 12 able to drain through said openings into said trough, said openings separated from one 13 another by at least a portion of said drilling rig floor surface; and an outlet aperture 14 operatively attached to said trough, the combination of said trough and said aperture adapted to guide said fluids away from said drilling rig floor.
17 Figure 1 is an isometric view of the present invention.
18 Figure 2 is an isometric exploded view of the present invention.
19 Figure 3 is an isometric view of the present invention with the top panel of the module removed.
21 Figure 4 is a perspective view of the present invention mounted on a drilling 22 rig.
24 The present invention is illustrated in Figures 1 to 4. Referring to Figures 1 and 2, module 50 of the present invention comprises of top panel 10 mounted on {E5377039. DOC; I }
1 substructure 20. Top panel 10 is secured to substructure 20 with bolts passing 2 through boltholes 18 and comprises opening 16 to allow rotary table 24 to pass 3 through. Top panel 10 further comprises drainage slots 14 placed around its 4 perimeter. Slots 14 are sized and positioned on top panel 10 whereby slots 14 are
More specifically, the present invention relates to a system for collecting fluids, such 6 as drilling fluid, spilt onto the drilling rig floor when sections of drilling pipe are 7 removed from the drill string.
9 Generally, drilling rigs consists of a pit, or area of ground beneath the rig, surrounding the drill pipe, which terminates in a wellhead. When sections of drilling 11 pipe are removed or "tripped out" from the drill string during drilling operations, the 12 column of drilling fluid contained in the pipe section spills onto the drilling rig floor.
13 These fluids over the edges of the drilling rig floor and fall into the pit. The spilt 14 fluids are not only a safety hazard for the workers on the rig site, they can be an environmental hazard depending on the composition of the fluids themselves.
For 16 this reason, drainage systems are needed on drilling rigs to collect drilling fluid spilt 17 onto the rig floor to improve the safety of the rig floor for the workers and to collect 18 the fluids before they reach the ground so that they can be recycled or properly 19 disposed of.
US Patent no. 5,228,506 teaches a spill collection system associated with a 21 well drilling rig or a work-over rig, and the wellhead of a borehole. The system is 22 supported from the wellhead itself, and consists of a removable impervious system 23 with four flexible open-faced panels circumferentially arranged around an apertured 24 plate member. Such an open-faced system still allows for some liquid traveling at {E5077853.DOC;1 }
1 high speed to deflect off the panel surface and spill or spray over on to the ground, 2 rather than gravitating towards the apertured plate member. This system is not 3 permanently affixed to the rig and requires assembly and disassembly each time it is 4 to be used at the rig site.
US Patent no. 5,343,943 teaches a waste fluid containment and recovery 6 apparatus for installation in-line with a piping system. The system can be combined 7 with a portable base for transportation, and a hydraulic lift whereby vertical height of 8 the system can be adjusted. Such a system can provide a grate floor to prevent spray-9 off of drilling fluid spilling on to the system, and to provide a gripping surface for workmen walking on the floor, but is wanting in its ability to collect spilt drilling 11 fluid.
12 US Patent no. 5,634,485 teaches a method and apparatus for retrofitting 13 existing drilling rigs with a catch pan, but the system fails to provide a platform upon 14 which drill workers may walk safely above the catch pan. The system is also permanently affixed in place and is unable to be moved vertically or rotatably with the 16 drill pipe.
17 It is, therefore, desirable to have a drainage system that can safely and 18 efficiently collect drilling fluid that is spilled during the drilling and servicing of a 19 well.
SUMMARY OF THE INVENTION
21 The present invention is a drainage system that is designed for use on a 22 drilling rig and is capable of collecting drilling fluid spilt during drilling and servicing 23 processes. When the drainage system is assembled and in position around the drill 24 pipe, drilling fluid waste may drain through a grid floor into a collection trough {E5077853.DOC; l }
1 underneath, and may then be then guided away from the rig for recycling or proper 2 disposal. This system may help to ensure the safety of those walking on the grid floor 3 by preventing slipping on the spilled drilling fluid, and may prevent contamination of 4 the soil surrounding the drill rig resulting from spilled drilling fluid.
The present invention comprises a drilling floor surface that forms at least a 6 portion of the drilling rig floor. The drilling floor surface can be of any suitable shape 7 but is, preferably, rectangular. A plurality of openings are disposed about the drilling 8 floor surface that allow fluids to drain through. In one embodiment, the openings are 9 sized and positioned whereby the openings are separated from one another by at least a portion of the drilling floor surface. Located underneath the drilling floor surface is 11 a trough to collect fluids that drain through the openings. The trough guides the fluids 12 to an outlet aperture. The openings may be located anywhere on the drilling floor 13 surface but are, preferably, disposed at least partially about the perimeter of the 14 drilling floor surface. Accordingly, the trough is located underneath the openings.
The trough slopes downwardly towards the outlet aperture so that fluids will naturally 16 flow towards the outlet aperture due to gravity.
17 In a preferred embodiment of the present invention, the drilling floor surface, 18 the trough and the outlet aperture are components of a structure or module that may 19 be removably mounted on a drilling rig. The module consists of a top panel comprising the drilling floor surface and a substructure comprising a bottom surface 21 and four sidewalls extending between the top panel and the bottom surface to form a 22 six-sided structure. In this embodiment, the outlet aperture extends through a sidewall 23 of the module to connect to an external drainage pipe, hose or trough to guide the 24 fluids away from the drilling rig floor.
It is an object of the present invention to provide a safe and efficient drainage 26 system for drilling rigs in the oil industry.
{E5377039.DOC;1 }
1 It is another object of the present invention to provide effective removal of 2 drilling fluid from a drilling rig, thereby preventing contamination of the soil beneath 3 the drilling rig.
4 It is yet another object of the present invention to provide a safer environment for oil rig workers working on the drilling rig floor.
6 Broadly stated, the present invention is a drainage system for draining fluids 7 from a drilling rig floor of a drilling rig, comprising a substantially horizontal drilling 8 floor surface suitable for use as a drilling rig floor, said floor surface defining at least 9 a portion of said drilling rig floor; a trough disposed underneath said drilling floor surface; a plurality of drainage openings disposed on said drilling floor surface, said 11 openings located above said trough whereby fluids on said drilling floor surface are 12 able to drain through said openings into said trough, said openings separated from one 13 another by at least a portion of said drilling rig floor surface; and an outlet aperture 14 operatively attached to said trough, the combination of said trough and said aperture adapted to guide said fluids away from said drilling rig floor.
17 Figure 1 is an isometric view of the present invention.
18 Figure 2 is an isometric exploded view of the present invention.
19 Figure 3 is an isometric view of the present invention with the top panel of the module removed.
21 Figure 4 is a perspective view of the present invention mounted on a drilling 22 rig.
24 The present invention is illustrated in Figures 1 to 4. Referring to Figures 1 and 2, module 50 of the present invention comprises of top panel 10 mounted on {E5377039. DOC; I }
1 substructure 20. Top panel 10 is secured to substructure 20 with bolts passing 2 through boltholes 18 and comprises opening 16 to allow rotary table 24 to pass 3 through. Top panel 10 further comprises drainage slots 14 placed around its 4 perimeter. Slots 14 are sized and positioned on top panel 10 whereby slots 14 are
5 separated from one another by at least a portion of top panel 10.
6 Referring to Figures 2 and 3, substructure 20 is shown having rotary table
7 and slots 32. It should be obvious to those skilled in the art that module 50 does not
8 require rotary table 24 if a top-drive unit (not shown) is used to operate the drill string
9 which passes through opening 22. Slots 32 provide an opening that lead to a guide track (not shown) for a robotic roughneck (not shown) that travels to and from rotary 11 table 24 along slots 32. Located about at least a portion of the perimeter of 12 substructure 20 is trough 28. Trough 28 is positioned within substructure 20 such that 13 trough 28 lies underneath drainage slots 14. Trough 28 slopes downwardly from one 14 end of substructure 20 to an opposite end to intersect with outlet aperture 26. Outlet aperture 26 extends through a sidewall of substructure 20 to connect with a drain pipe, 16 hose or trough (not shown) which, in turn, leads to a collection pit or vessel (not 17 shown). It should be obvious to those skilled in the art that trough 28 can slope 18 downwardly towards either the front or the rear of module 50. In the embodiment of 19 the present invention shown in this specification, trough 28 slopes towards the rotary table end of module 50 to connect with outlet aperture 26.
21 Referring to Figure 4, module 50 is shown mounted on drilling rig 40 such 22 that top panel 10 is flush with drilling rig floor 30. In operation, drilling fluid 23 draining from sections of pipe tripped out of the drill string spill on module 50 and 24 drain through drainage slots 14 to trough 28. Trough 28 guides the fluid towards {E5377039. DOC;1 }
1 outlet aperture 26 where the fluid is then guided to a collection pit or vessel where the 2 fluid can be recycled or properly disposed of.
3 Although a preferred embodiment has been shown and described, it will be 4 appreciated by those skilled in the art that various changes and modifications might be made without departing from the scope of the invention. The terms and expressions 6 used in the preceding specification have been used herein as terms of description and 7 not of limitation, and there is no intention in the use of such terms and expressions of 8 excluding equivalents of the features shown and described or portions thereof, it being 9 recognized at the scope of the invention as defined and limited only by the claims that follow.
{E5077853.DOC;1 }
21 Referring to Figure 4, module 50 is shown mounted on drilling rig 40 such 22 that top panel 10 is flush with drilling rig floor 30. In operation, drilling fluid 23 draining from sections of pipe tripped out of the drill string spill on module 50 and 24 drain through drainage slots 14 to trough 28. Trough 28 guides the fluid towards {E5377039. DOC;1 }
1 outlet aperture 26 where the fluid is then guided to a collection pit or vessel where the 2 fluid can be recycled or properly disposed of.
3 Although a preferred embodiment has been shown and described, it will be 4 appreciated by those skilled in the art that various changes and modifications might be made without departing from the scope of the invention. The terms and expressions 6 used in the preceding specification have been used herein as terms of description and 7 not of limitation, and there is no intention in the use of such terms and expressions of 8 excluding equivalents of the features shown and described or portions thereof, it being 9 recognized at the scope of the invention as defined and limited only by the claims that follow.
{E5077853.DOC;1 }
Claims (7)
1. A drainage system for draining fluids from a drilling rig floor of a drilling rig, comprising:
a) a substantially horizontal drilling floor surface suitable for use as a drilling rig floor, said floor surface defining at least a portion of said drilling rig floor;
b) a trough disposed underneath said drilling floor surface;
c) a plurality of drainage openings disposed on said drilling floor surface, said openings located above said trough whereby fluids on said drilling floor surface are able to drain through said openings into said trough, said openings separated from one another by at least a portion of said drilling floor surface; and d) an outlet aperture operatively attached to said trough, the combination of said trough and said aperture adapted to guide said fluids away from said drilling rig floor.
a) a substantially horizontal drilling floor surface suitable for use as a drilling rig floor, said floor surface defining at least a portion of said drilling rig floor;
b) a trough disposed underneath said drilling floor surface;
c) a plurality of drainage openings disposed on said drilling floor surface, said openings located above said trough whereby fluids on said drilling floor surface are able to drain through said openings into said trough, said openings separated from one another by at least a portion of said drilling floor surface; and d) an outlet aperture operatively attached to said trough, the combination of said trough and said aperture adapted to guide said fluids away from said drilling rig floor.
2. The drainage system as set forth in claim 1 wherein said trough and said openings are disposed at least partially about a perimeter of said drilling floor surface.
3. The drainage system as set forth in claim 2 wherein said trough slopes downwardly towards said outlet aperture.
4. The drainage system as set forth in claim 1 wherein said drilling floor surface is the top surface of a drilling rig module, said module adapted to be removably mounted on said drilling rig.
5. The drainage system as set forth in claim 4 wherein said trough is disposed within said module and said outlet aperture is adapted to guide said fluids through an opening in a sidewall of said module.
6. The drainage system as set forth in claim 5 wherein said trough and said openings are disposed at least partially about a perimeter of said drilling floor surface.
7. The drainage system as set forth in claim 6 wherein said trough slopes downwardly towards said outlet aperture.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002517111A CA2517111C (en) | 2005-08-26 | 2005-08-26 | Drilling rig floor drainage system |
| US11/338,291 US20070044955A1 (en) | 2005-08-26 | 2006-01-24 | Drilling rig floor drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002517111A CA2517111C (en) | 2005-08-26 | 2005-08-26 | Drilling rig floor drainage system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2517111A1 CA2517111A1 (en) | 2007-02-26 |
| CA2517111C true CA2517111C (en) | 2008-07-29 |
Family
ID=37802423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002517111A Expired - Fee Related CA2517111C (en) | 2005-08-26 | 2005-08-26 | Drilling rig floor drainage system |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20070044955A1 (en) |
| CA (1) | CA2517111C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202009009082U1 (en) * | 2009-07-02 | 2009-10-08 | Kroll, Timm | draining mat |
| US20120073831A1 (en) * | 2010-09-27 | 2012-03-29 | Robert Gibbens | Mud saver mat for rig floors and other areas |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1507628A (en) * | 1922-06-24 | 1924-09-09 | Robert J Schuyler | Auxiliary oil saver |
| US5343943A (en) * | 1990-09-04 | 1994-09-06 | Norris Jimmy D | Portable oil-drilling waste recovery system |
| US5419400A (en) * | 1991-05-13 | 1995-05-30 | Wigington, Sr.; James R. | Environmental vat |
| US5167277A (en) * | 1991-10-28 | 1992-12-01 | Atlantic Richfield Company | Well service containment system |
| US5228506A (en) * | 1991-12-04 | 1993-07-20 | Pearce Stevan E | Spill collection system for wellheads |
| US5377748A (en) * | 1993-09-23 | 1995-01-03 | Pool Company | Spill container for wells with improved mounting |
| CA2136375C (en) * | 1994-11-22 | 2006-02-14 | Quinn Holtby | A method and apparatus for retrofitting drilling rigs with a catch pan |
-
2005
- 2005-08-26 CA CA002517111A patent/CA2517111C/en not_active Expired - Fee Related
-
2006
- 2006-01-24 US US11/338,291 patent/US20070044955A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CA2517111A1 (en) | 2007-02-26 |
| US20070044955A1 (en) | 2007-03-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20180827 |