WO2003031770A1 - Tool for cleaning boreholes - Google Patents
Tool for cleaning boreholes Download PDFInfo
- Publication number
- WO2003031770A1 WO2003031770A1 PCT/NL2002/000616 NL0200616W WO03031770A1 WO 2003031770 A1 WO2003031770 A1 WO 2003031770A1 NL 0200616 W NL0200616 W NL 0200616W WO 03031770 A1 WO03031770 A1 WO 03031770A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nozzles
- rotating
- tool
- rotating axis
- relation
- Prior art date
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000013049 sediment Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 241001481828 Glyptocephalus cynoglossus Species 0.000 abstract 1
- 229910021532 Calcite Inorganic materials 0.000 description 3
- 229940043430 calcium compound Drugs 0.000 description 1
- 150000001674 calcium compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000012188 paraffin wax 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
Definitions
- the invention relates a tool for cleaning of boring holes for oil and gas.
- the tool is mounted firm on a supply tube and is foreseen with a rotating head which is foreseen with nozzles which are directed to the inside wall of the boring hole.
- a tool with nozzles is known from the American patent US-A-6,027,040. This tool is equipped with two nozzles which are placed eccentric and under a angle. It has been found that the combination of eccentricity and angle leads to too many revolutions per minute and results in low results. The tool dislodges the pollution in too large lumps which causes the tool easily being stuck.
- the invention relates a tool with on the front side a rotating head with nozzles which are placed under an angle and in the plane of the rotating axis for an effective cleaning.
- the rotation of the head is accomplished by two or more nozzles which are placed perpendicular and eccentric to the rotation axis. These perpendicular to the rotation axis placed nozzles have the additional job to crush the loosened lumps so that the tool will not be stuck.
- In the stationary part are nozzles directed under an angle to the rearside which have the function to remove the crushed funny bits from the tool.
- the tool can be equipped with a eddy current brake to limit the revolutions per minute. By a selection of the diameter of the different nozzles the tool is adjusted for different types of funny bits. Calcite demands an other configuration of nozzles than hard paraffin.
- the tool is firm fixed to a steel supply tube and supplied with water with a pressure between 150 and 2500 bar.
- Fig. 1 shows schematic the arrangement of the nozzles.
- Fig. 2 shows a crossection along the axis of the tool.
- Fig. 3 shows the cleaning operation in a boring hole.
- Fig. 1 is schematic the configuration of the nozzles indicated.
- Line (1) is the rotation axis of the on the front side placed rotating head (2).
- head (2) are two or more nozzles (3) placed under an angle (4) in relation with the rotating axis (1) and in the plane of rotating axis (1).
- the angle (4) is between 25 and 50 degrees, preferable 35 degrees.
- nozzles (5) In head (2) are placed one or more nozzles (5). Nozzles (5) are placed perpendicular and with eccentricity (7). By eccentricity (7) nozzles (5) will rotate head (2). The torque can be adjusted by the choice of the diameter of the nozzle and in variation of the eccentricity (7). With (8) is the bearing and seals of the rotation coupling schematically indicated.
- nozzles (10) mounted which under an angle (11) in relation to the axis of rotation (1) pointed in direction of the supply tube (12).
- FIG. 2 In fig. 2 is shown schematic a crossection of the tool.
- the supply tube (12) for water with a pressure between 150 and 2500 bar is connected at (13).
- In the centre of the tool is channel
- the tool being in the boring hole is shown in Fig. 3 with drilling tube (18) and sediment (19).
- the supply tube (12) which can be of the type of coiled tube serves as supply for water at high pressure.
- the water jets from nozzles (3) cut the sediments loose and nozzles (5) crush the funny bits and let the head (2) rotate.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Nozzles (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1019136 | 2001-10-08 | ||
NL1019136A NL1019136C2 (en) | 2001-10-08 | 2001-10-08 | Tools for cleaning wells. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003031770A1 true WO2003031770A1 (en) | 2003-04-17 |
Family
ID=19774147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL2002/000616 WO2003031770A1 (en) | 2001-10-08 | 2002-10-08 | Tool for cleaning boreholes |
Country Status (2)
Country | Link |
---|---|
NL (1) | NL1019136C2 (en) |
WO (1) | WO2003031770A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2518263A1 (en) * | 2011-04-28 | 2012-10-31 | Welltec A/S | Downhole cleaning system |
WO2013101333A3 (en) * | 2011-12-27 | 2013-12-12 | Thru Tubing Solutions, Inc. | Apparatus and method for removing debris from a well |
DE102013011626A1 (en) * | 2013-07-12 | 2015-01-15 | Rosen Swiss Ag | Newt, in particular inspection or cleaning pig |
CN107096751A (en) * | 2017-06-26 | 2017-08-29 | 中国石油集团渤海钻探工程有限公司 | Drilling tool automatic cleaning apparatus and drilling tool cleaning method |
CN112443296A (en) * | 2020-11-23 | 2021-03-05 | 中国石油大学(华东) | Coal bed gas well is with dashing rotatory shower nozzle of buggy high pressure water jet |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3844362A (en) * | 1973-05-14 | 1974-10-29 | K Elbert | Boring device |
US3912173A (en) * | 1974-04-25 | 1975-10-14 | Donald F Robichaux | Formation flushing tool |
US5195585A (en) * | 1991-07-18 | 1993-03-23 | Otis Engineering Corporation | Wireline retrievable jet cleaning tool |
US5484016A (en) * | 1994-05-27 | 1996-01-16 | Halliburton Company | Slow rotating mole apparatus |
US6173771B1 (en) * | 1998-07-29 | 2001-01-16 | Schlumberger Technology Corporation | Apparatus for cleaning well tubular members |
-
2001
- 2001-10-08 NL NL1019136A patent/NL1019136C2/en not_active IP Right Cessation
-
2002
- 2002-10-08 WO PCT/NL2002/000616 patent/WO2003031770A1/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3844362A (en) * | 1973-05-14 | 1974-10-29 | K Elbert | Boring device |
US3912173A (en) * | 1974-04-25 | 1975-10-14 | Donald F Robichaux | Formation flushing tool |
US5195585A (en) * | 1991-07-18 | 1993-03-23 | Otis Engineering Corporation | Wireline retrievable jet cleaning tool |
US5484016A (en) * | 1994-05-27 | 1996-01-16 | Halliburton Company | Slow rotating mole apparatus |
US6173771B1 (en) * | 1998-07-29 | 2001-01-16 | Schlumberger Technology Corporation | Apparatus for cleaning well tubular members |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2518263A1 (en) * | 2011-04-28 | 2012-10-31 | Welltec A/S | Downhole cleaning system |
WO2012146725A1 (en) * | 2011-04-28 | 2012-11-01 | Welltec A/S | Downhole cleaning system |
CN103502566A (en) * | 2011-04-28 | 2014-01-08 | 韦尔泰克有限公司 | Downhole cleaning system |
WO2013101333A3 (en) * | 2011-12-27 | 2013-12-12 | Thru Tubing Solutions, Inc. | Apparatus and method for removing debris from a well |
DE102013011626A1 (en) * | 2013-07-12 | 2015-01-15 | Rosen Swiss Ag | Newt, in particular inspection or cleaning pig |
CN107096751A (en) * | 2017-06-26 | 2017-08-29 | 中国石油集团渤海钻探工程有限公司 | Drilling tool automatic cleaning apparatus and drilling tool cleaning method |
CN107096751B (en) * | 2017-06-26 | 2022-09-23 | 中国石油天然气集团有限公司 | Automatic cleaning device for drilling tool and drilling tool cleaning method |
CN112443296A (en) * | 2020-11-23 | 2021-03-05 | 中国石油大学(华东) | Coal bed gas well is with dashing rotatory shower nozzle of buggy high pressure water jet |
Also Published As
Publication number | Publication date |
---|---|
NL1019136C2 (en) | 2003-04-09 |
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