EP2652205A1 - Method for drilling and lining a well - Google Patents
Method for drilling and lining a wellInfo
- Publication number
- EP2652205A1 EP2652205A1 EP11771243.0A EP11771243A EP2652205A1 EP 2652205 A1 EP2652205 A1 EP 2652205A1 EP 11771243 A EP11771243 A EP 11771243A EP 2652205 A1 EP2652205 A1 EP 2652205A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drilling
- jet
- fluid
- hardener
- lining
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000012530 fluid Substances 0.000 claims abstract description 22
- 239000011440 grout Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000007596 consolidation process Methods 0.000 claims abstract description 5
- 239000002689 soil Substances 0.000 claims description 16
- 239000004568 cement Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000004848 polyfunctional curative Substances 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 5
- 239000004927 clay Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/44—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with enlarged footing or enlargements at the bottom of the pile
- E02D5/445—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with enlarged footing or enlargements at the bottom of the pile by application of pyrotechniques
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
- E21B33/138—Plastering the borehole wall; Injecting into the formation
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
Definitions
- the present invention relates to a method of drilling and lining consolidation of a well in a friable ground, for casting a pile or soil recognition, or drilling water and drain, through a hollow rod train operated in rotation or linearly.
- a drilling tool adapted to the nature of the soil.
- a drilling fluid injected into the drill string and cuttings generated by drilling are removed by surface recovery by the same drilling fluid.
- the method of the invention relates to any type of drilling, regardless of its diameter, depth, shape (round, square, rectangular), in any type of soil and whatever its purpose.
- the prior art teaches, according to a traditional method of drilling, to use hollow rods placed end to end as and when the drilling progresses.
- drilling fluid used to remount the cuttings to the surface, and sometimes to hold the ground. This is how it can be: water; air; a viscous mixture called "GSP"; bentonite, which is a mixture of water and clay; a grout, which is a mixture of water and cement; concrete, which is a mixture of water, cement and gravel.
- the tricone particularly suitable for any type of terrain, but the larger the diameter of the tricone, the more the drill must be important.
- the trilame is also used, rather restricted to clay and silty soils.
- the "downhole” or “off-hole” hammer will be preferred. This is a direct hit of the tool respectively on the bottom of the soil being drilled, or on the end of the rod carrying said drilling tool.
- drilling button This tool is made of tungsten and rotates, as in the previous cases.
- corer a tool finds its use in soil recognition, to extract samples. It sometimes requires casing, when deep, to prevent rock fall behind the borehole.
- the present invention aims to provide a single and simplified technique regardless of the site, where only the drilling tool is to adapt to the type of terrain.
- the invention relates to a method of drilling and lining consolidation of a well in a friable ground, for the casting of a pile, the search for oil or soil recognition, or drilling d water and drain, by means of a hollow shaft train actuated in rotation or linearly, at the end of which is disposed a drilling tool adapted to the nature of the ground, and near which is projected a drilling fluid injected into the drill string, the cuttings thus generated by the drilling being discharged by surface raising by the same drilling fluid, characterized in that the lining of the wellbore is obtained from a double jet of projection on its wall, on the one hand a slurry of a material having curing characteristics, and secondly a fluid hardener, the first jet occurring immediately behind the drill bit, and the second jet occurring simultaneously behind said first jet.
- the drilling may be intended for the realization of the pile for special foundations, the sounding of soil, the search for oil, water drilling or drain, without concern of holding of ground or time of intervention.
- Figure 1 shows schematically a traditional drilling machine, equipped with a rotary or hammer "off hole” as defined above.
- FIG. 2 diagrammatically represents a drill string and its drilling tool, equipped with lining means according to the method of the invention, according to a first exemplary embodiment, that is to say by rotary drive.
- FIG. 3 schematically shows a drill string and its drilling tool, equipped with lining means according to the method of the invention, according to a second embodiment, that is to say by linear drive.
- FIG. 4 is a sectional view along line IV - IV of FIG. 3.
- the invention relates to a method of drilling and lining consolidation of a well 1,1A in a friable ground 2, for the casting of a pile, the search for oil or soil recognition, or water drilling and drain, via a train of hollow rods 3.3A actuated in rotation or linearly, at the end of which is disposed a drill bit 4 4A adapted to the nature of the soil 2, and near which is projected a drilling fluid 5 injected into the drill string 3,3A, the cuttings thus generated by the borehole being evacuated by raising to the surface by the same drilling fluid 5.
- the lining 6, 6A of the wellbore 1.1A is obtained from a double jet of projection 7,8-7A, 8A on its wall 9 9A, on the one hand a slurry of a material having curing characteristics, and on the other hand a fluid hardener, the first jet 7.7A intervening immediately behind the drill bit 4,4A, and the second jet 8.8A occurring simultaneously behind said first jet 7.7A, the assembly may be biodegradable depending on the type of drilling to be obtained, for example water drilling or drain.
- the device is constituted by a drilling machine 10, generally designated in Figure 1, supporting the drill string 3 at the end of which is disposed l drilling tool 4 itself, which can be a tricone, a cutter, a hammer "downhole” or a trilame. In the example shown, it is a rotary drive or a hammer "off hole" 11.
- FIGS. 3 and 4 differs from the previous one in that the driving of the drilling tool 4A is linearly in the direction "F".
- the tool 4A is in fact a grab, digging the ground 2 by means of claws 12 closing on them- even after taking the soil in place, to bring it to the surface.
- the method is the same, namely, digging the borehole 1,1A by a drill bit 4,4A and project immediately behind, one or more streams of cement slurry 7,7A, or other, and one or more hardener streams 8.8A on the walls 9, 9A.
- the drilling can be carried out dry, that is to say without mud and therefore without a specialist in this method.
- the drilling fluid 5 is air injected under high pressure.
- the material having curing characteristics, forming the first spray jet 7,7A is a cement slurry, or the like.
- the cement grout consists of cement or other, and water or other, in proportions allowing the fluidity required.
- the grout of cement or other forming the first jet 7,7A and the hardener forming the second jet 8,8A are projected under low pressure or under high pressure.
- the use of low pressure avoids the enlargement of the diameter of the borehole 1.1A, during the lining.
- the piles to be subsequently poured into the wellbores being of substantially identical composition, good catch compatibility will occur with the lining which has been previously made.
- the second jet concerning the hardener is therefore a setting accelerator having the effect of lowering, to a few seconds, the setting time of the projected grout constituting the liner, not to say almost immediately.
- This liner will have a thickness of the order of 4 to 5 mm.
- the grout plus the hardener may be replaced by other products according to the technical objective to be obtained for drilling.
- the grout may be reinforced with fibers, steel or other. This is particularly interesting in the event of a major surge in the ground (swelling clay) or water (groundwater).
- the flow rate of the first jet 7.7A is adjusted relative to the progress of the drilling tool 4,4A, depending on the nature of the terrain 2.
- the carrier rods 3.A hollow digs of the drill bit 4.4A comprise three feed circuits, respectively: one for the drilling fluid 5, air in this case; one for grout or other 7.7A liner; one for the 8,8A hardener.
- the 7,7A-8,8A jets are derived from conical jet nozzles.
- the two spray jets 7.7A-8.8A of the slurry and the hardener are protected from the upwelling of the cuttings by driving the drilling fluid 5 towards the surface, via a protective screen 13, disposed on the drill pipe 3 interposed between said jets 7,8 and the drill bit 4.
- the rotary protection screen 13 is composed of an angular sector whose angle is of such value as to protect the jets 7,8, integral with the rod 4, while allowing, in its also rotatable open zone, the passage of excavated material the surface by the drilling fluid 5, during its rotation.
- the drilling tool 4 is equipped with a reamer, so as to increase the diameter of drilling to take into account the thickness of the liner.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Structural Engineering (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Earth Drilling (AREA)
- Piles And Underground Anchors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1060480A FR2968702B1 (en) | 2010-12-14 | 2010-12-14 | METHOD FOR DRILLING AND SHAPING A WELL |
PCT/FR2011/052174 WO2012080598A1 (en) | 2010-12-14 | 2011-09-21 | Method for drilling and lining a well |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2652205A1 true EP2652205A1 (en) | 2013-10-23 |
EP2652205B1 EP2652205B1 (en) | 2015-04-15 |
Family
ID=44314207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11771243.0A Active EP2652205B1 (en) | 2010-12-14 | 2011-09-21 | Drilling method |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2652205B1 (en) |
ES (1) | ES2542617T3 (en) |
FR (1) | FR2968702B1 (en) |
WO (1) | WO2012080598A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2503203A (en) * | 2012-05-02 | 2013-12-25 | Michael Pritchard | Wellbore lining using a directional nozzle |
CN105909207A (en) * | 2016-04-19 | 2016-08-31 | 安徽恒源煤电股份有限公司 | Grouting, pipe fixing and plugging technique for deep drainage hole wall in water inrush borehole |
US11421507B2 (en) * | 2020-10-15 | 2022-08-23 | Saudi Arabian Oil Company | Reinforcing wellbores prior to casing and cementing |
CN114198032B (en) * | 2021-10-29 | 2024-06-14 | 中铁六局集团呼和浩特铁路建设有限公司 | Small-diameter drilling equipment and use method thereof |
CN115217102B (en) * | 2022-08-09 | 2024-01-09 | 深圳市南华岩土工程有限公司 | Vertical auxiliary device and process method for high-pressure jet grouting pile waterproof curtain |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4972906A (en) * | 1989-09-07 | 1990-11-27 | Conoco Inc. | Method for selective plugging of a zone in a well |
CA2024664A1 (en) * | 1990-09-05 | 1992-03-06 | Stephen J. Mcdaniel | Method for selective plugging of a zone in a well |
EA008963B1 (en) * | 2004-02-12 | 2007-10-26 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Method for suppressing fluid communication to or from a wellbore |
-
2010
- 2010-12-14 FR FR1060480A patent/FR2968702B1/en not_active Expired - Fee Related
-
2011
- 2011-09-21 WO PCT/FR2011/052174 patent/WO2012080598A1/en active Application Filing
- 2011-09-21 ES ES11771243.0T patent/ES2542617T3/en active Active
- 2011-09-21 EP EP11771243.0A patent/EP2652205B1/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2012080598A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2968702B1 (en) | 2012-12-28 |
FR2968702A1 (en) | 2012-06-15 |
WO2012080598A1 (en) | 2012-06-21 |
EP2652205B1 (en) | 2015-04-15 |
ES2542617T3 (en) | 2015-08-07 |
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