EP0885372B1 - Verfahren zum teufen und abdichten einer sprengbohrung - Google Patents
Verfahren zum teufen und abdichten einer sprengbohrung Download PDFInfo
- Publication number
- EP0885372B1 EP0885372B1 EP94908201A EP94908201A EP0885372B1 EP 0885372 B1 EP0885372 B1 EP 0885372B1 EP 94908201 A EP94908201 A EP 94908201A EP 94908201 A EP94908201 A EP 94908201A EP 0885372 B1 EP0885372 B1 EP 0885372B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suspension
- blast hole
- hole
- sealing
- filled
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 title claims abstract description 10
- 239000000725 suspension Substances 0.000 claims abstract description 30
- 238000005553 drilling Methods 0.000 claims abstract description 22
- 239000002360 explosive Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002734 clay mineral Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000003566 sealing material Substances 0.000 claims abstract description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical class O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 claims description 2
- 239000007767 bonding agent Substances 0.000 claims 3
- 239000006185 dispersion Substances 0.000 claims 1
- 238000005325 percolation Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 8
- 239000011230 binding agent Substances 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000005755 formation reaction Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 229910000278 bentonite Inorganic materials 0.000 description 3
- 239000000440 bentonite Substances 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000011396 hydraulic cement Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000004181 pedogenesis Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/24—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor characterised by the tamping material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/12—Feeding tamping material by pneumatic or hydraulic pressure
Definitions
- the invention relates to a method for sinking and sealing an explosive well for seismic exploration of a Soil formation in which the blast drilling in the direct flush drilling method brought down and with a sealing material is backfilled.
- FR-A-0884628 discloses damming and backfilling one Borehole. The problem of drilling fluids used as well of sealing not mentioned.
- EP-A-0403025 discloses a method of sinking and sealing an explosive well for seismic exploration of ground formations, in which the blast hole is drilled in direct flush drilling and is filled with a sealing material.
- a sealing material a hydraulic cement is disclosed, and oil, water is used for the drilling fluid or foam used.
- the disadvantage of this method is its use two different materials for sealing or Rinse so this procedure is complicated and very costly. Furthermore, the problem of sealing an explosive well does not mentioned.
- this object is achieved in that as a drilling fluid a slowly hydraulically hardening suspension of water and one fine-grained mixture of clay minerals and hydraulic binder is used and that the blast well after its completion and the insertion of the explosive charge is filled with the suspension and then the suspension in the blast hole to a dense and hard stopper.
- the method according to the invention is characterized by a A number of advantages from making explosive wells significantly simplify and reduce costs. So will by using one as drilling fluid and backfill material suitable suspension of material requirements significantly reduced and the workload, especially for backfilling of explosive wells, significantly reduced. Manufacturing the suspension is the manufacture of suitable drilling fluids comparable and therefore does not require an additional one Expenditure. On the use of expensive rinses and chemicals can be dispensed with.
- the suspension ensures the drilling process for supporting the borehole and through penetration the suspension into the boundary layer adjacent to the borehole a filter cake forms on the bottom Preventing suspension mass from flowing out of the borehole.
- the suspension After loading the blast hole and pulling the drill pipe the suspension completely fills the borehole, so that by hardening the suspension, preferably in a period of 48 hours, a firm, dense body is formed, which securely closes the borehole and the pierced soil layers in the required manner seals against each other.
- the suspension is adjusted so that the compressive strength of the stopper reaches 0.4-0.8 N / mm 2 after setting.
- the permeability coefficient of the hardened suspension should be at least 10 -8 m / s.
- the density of the suspension should preferably be about 1.2 kg / l amount to a favorable flushing behavior when sinking the Get bore.
- the suspension activated as a clay mineral Contains bentonite. Due to the properties of bentonite sufficient with a comparatively low cost of materials Achieve stability and tightness of the plug.
- Dispersing the mixture of clay minerals and binder in water to make the suspension can after a further proposal of the invention with the aid of the irrigation pump the drilling rig. Additional devices or Facilities are therefore not required.
- the explosive charge in the borehole is covered with a bed of gravel or drillings. This makes one especially with shallow explosive bores additional securing of the explosive charge achieved.
- an explosive cartridge is placed on the bottom of the borehole through the drill pipe still in the borehole.
- the boom is then pulled and the explosive cartridge is secured by pouring gravel or cuttings over it. If necessary, the borehole is then completely filled with suspension.
- the suspension sets within 48 hours, thereby forming a tight and firm stopper that completely seals the borehole. Values of 0.4-0.8 N / mm 2 were achieved as the compressive strength of the stopper.
- the permeability coefficient Kf was between 10 -8 and 10 -1 0 m / s.
- the hardened mass of the stopper consists approximately of 23% by weight of solid and 77% by weight of water.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Description
Claims (8)
- Verfahren zum Taufen und Abdichten einer Sprengbohrung für die seismische Erkundung einer Bodenformation, bei dem die Sprengbohrung im direkten Spülbohrverfahran niedergebracht und mit einem dichtenden Material verfüllt wird, dadurch gekennzeichnet, daß als Bohrspülung eine langsam hydraulisch erhärtende Suspension aus Wasser und einer feinkörnigen Mischung aus Tonmineralien und hydraulischem Bindemittel verwendet wird und daß die Sprengbohrung nach ihrer Fertigstellung und dem Einsetzen der Sprengladung mit der Suspension verfüllt wird und anschließend die Suspension in der Sprangbohrung zu einem dichten und festen Stopfen abbindet.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Suspension so eingestellt wird, daß sie innerhalb von 48 Stunden in dem Bohrloch abbindet.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Druckfestigkeit des durch die Suspension gebildeten Stopfens 0,4 - 0,8 N/mm2 erreicht.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Suspension eine Dichte von ca. 1,2 kg/l hat.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Suspension so eingestellt wird, daß nach dem Erhärten ein Durchlässigkeitsbeiwert Kf von 10-8 m/s erreicht wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Suspension als Tonmineral aktivierten Bentonit und als Bindemittel Zement enthält.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Dispergieren der Mischung aus Tonmineralien und Bindemittel im Wasser mit Hilfe einer Spülungspumpe erfolgt.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Sprengladung mit einer Schüttung aus Kies oder Bohrgut abgedeckt wird.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4227724 | 1992-08-21 | ||
| DE4227724A DE4227724A1 (de) | 1992-08-21 | 1992-08-21 | Verfahren zum Teufen und Abdichten einer Sprengbohrung |
| PCT/DE1993/000743 WO1994004885A1 (de) | 1992-08-21 | 1993-08-18 | Verfahren zum teufen und abdichten einer sprengbohrung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0885372A1 EP0885372A1 (de) | 1998-12-23 |
| EP0885372B1 true EP0885372B1 (de) | 2000-11-08 |
Family
ID=6466066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94908201A Expired - Lifetime EP0885372B1 (de) | 1992-08-21 | 1993-08-18 | Verfahren zum teufen und abdichten einer sprengbohrung |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0885372B1 (de) |
| AU (1) | AU4941893A (de) |
| DE (3) | DE4227724A1 (de) |
| PL (1) | PL171842B1 (de) |
| WO (1) | WO1994004885A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE509273C2 (sv) * | 1997-06-05 | 1999-01-11 | Nitro Nobel Ab | Förfarande och anordning för laddning av borrhål med sprängämne |
| RU2148784C1 (ru) * | 1999-08-09 | 2000-05-10 | Санкт-Петербургский государственный горный институт им. Г.В. Плеханова (Технический университет) | Шпуровая забойка |
| US8627769B2 (en) * | 2010-04-23 | 2014-01-14 | Minova International Limited | Cementitious compositions |
| FR3069631B1 (fr) * | 2017-07-27 | 2019-09-06 | David Eberard | Procede de fabrication d'un corps d'obturation d'un logement, corps d'obturation et utilisation d'une composition en tant que materiau d'obturation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0403025A2 (de) * | 1989-06-14 | 1990-12-19 | Shell Internationale Researchmaatschappij B.V. | Verfahren zum Bohren und Auskleiden eines Bohrlochs |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1050708B (de) * | 1959-02-19 | Socony Mobil Oil Company, Inc., New York, N. Y. (V. St. A.) | Füllmasse zum Abdämmen von Bohrlöchern bei Erdölbohrungen | |
| FR884628A (fr) * | 1942-03-25 | 1943-08-23 | Cie Ingersoll Rand | Procédé de bourrage des trous de mines et appareil pour sa mise en oeuvre |
| DE926093C (de) * | 1953-04-22 | 1955-04-07 | Prakla Gmbh | Verfahren zur seismischen Bodenforschung |
| FR1154328A (fr) * | 1955-07-08 | 1958-04-04 | Hercules Powder Co Ltd | Procédé de tir |
| FR1277035A (fr) * | 1960-12-30 | 1961-11-24 | Procédé de tir des mines et de bourrage des trous de mines, et dispositif servant à sa mise en oeuvre | |
| SU436307A1 (ru) * | 1971-03-16 | 1974-07-15 | М. А. Завесин | Устройство для возбуждения сейсмическихволн в скважине |
| SU584267A1 (ru) * | 1975-04-10 | 1977-12-15 | Специальное Конструкторско-Технологическое Бюро Научно-Производственного Объединения "Лакокраспокрытие" | Сочлен ющие оболочки скважинного зар да дл сейсморазведки |
| JPS55140745A (en) * | 1979-04-23 | 1980-11-04 | Taisei Corp | Inorganic slurry caking method |
| US4289632A (en) * | 1979-09-20 | 1981-09-15 | Phillips Petroleum Company | Lost circulation material for sealing permeable formations |
| SU834331A1 (ru) * | 1979-10-02 | 1981-06-10 | Всесоюзный Научно-Исследовательскийинститут По Креплению Скважин Ибуровым Pactbopam | Состав дл изол ции зон поглощений |
| SU851299A1 (ru) * | 1979-10-25 | 1981-07-30 | Ордена Трудового Красного Знамениинститут Геологических Наук Им. K.И.Сатпаева Ah Казахской Ccp | Устройство дл коммутации группыиСТОчНиКОВ ВОзбуждЕНи B СЕйСМОРАзВЕдКЕ |
| SU857893A1 (ru) * | 1979-12-07 | 1981-08-23 | Вычислительный Центр Со Ан Ссср | Способ возбуждени сейсмических волн |
| SU1046274A1 (ru) * | 1982-02-23 | 1983-10-07 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Буровой Техники | Структурообразователь дл инвертных эмульсионных буровых растворов |
| US4463808A (en) * | 1982-06-10 | 1984-08-07 | Nl Industries, Inc. | Method for effecting seals in earth boreholes |
| SU1160342A1 (ru) * | 1983-05-25 | 1985-06-07 | Aleksandr E Blyum | СПОСОБ ВОЗБУЖДЕНИЯ материалом, имеющим волновую скоСЕЙСМИЧЕСКИХ ВОЛН |
| DE3341038C2 (de) * | 1983-11-12 | 1985-09-19 | Chemische Fabrik Kalk GmbH, 5000 Köln | Mittel zum Abdichten von Bohrlochwandungen |
| US4548266A (en) * | 1984-01-20 | 1985-10-22 | The United States Of America As Represented By The United States Department Of Energy | Method for isolating two aquifers in a single borehole |
| US4662451A (en) * | 1985-06-07 | 1987-05-05 | Phillips Petroleum Company | Method of fracturing subsurface formations |
| SU1368323A1 (ru) * | 1985-07-02 | 1988-01-23 | Всесоюзный Научно-Исследовательский Институт По Креплению Скважин И Буровым Растворам "Вниикрнефть" | Состав дл утилизации отработанного глинистого бурового раствора |
| SU1357419A1 (ru) * | 1986-02-06 | 1987-12-07 | Всесоюзный научно-исследовательский институт по креплению скважин и буровым растворам | Консолидирующий состав дл обезвреживани отработанных глинистых буровых растворов и осадков буровых сточных вод |
| NL8602057A (nl) * | 1986-08-12 | 1988-03-01 | C K S Nederland B V | Mengsel, verpompbare suspensie alsmede werkwijze voor het afdichten van boorgatwanden. |
| SU1384793A1 (ru) * | 1986-08-20 | 1988-03-30 | Институт Геотехнической Механики Ан Усср | Способ проведени выработок по выбросоопасным горным породам |
| SU1542948A1 (ru) * | 1987-11-17 | 1990-02-15 | Sred Az Ni Pi Neftyanoj Promy | Буровой раствор |
| SU1633092A1 (ru) * | 1988-04-22 | 1991-03-07 | Туркменский государственный научно-исследовательский и проектный институт нефтяной промышленности | Тампонажный пеноцементный раствор |
-
1992
- 1992-08-21 DE DE4227724A patent/DE4227724A1/de not_active Withdrawn
-
1993
- 1993-08-18 DE DE59310120T patent/DE59310120D1/de not_active Expired - Fee Related
- 1993-08-18 AU AU49418/93A patent/AU4941893A/en not_active Abandoned
- 1993-08-18 DE DE4393917T patent/DE4393917D2/de not_active Expired - Lifetime
- 1993-08-18 EP EP94908201A patent/EP0885372B1/de not_active Expired - Lifetime
- 1993-08-18 WO PCT/DE1993/000743 patent/WO1994004885A1/de not_active Ceased
- 1993-08-18 PL PL93312381A patent/PL171842B1/pl unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0403025A2 (de) * | 1989-06-14 | 1990-12-19 | Shell Internationale Researchmaatschappij B.V. | Verfahren zum Bohren und Auskleiden eines Bohrlochs |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0885372A1 (de) | 1998-12-23 |
| AU4941893A (en) | 1994-03-15 |
| WO1994004885A1 (de) | 1994-03-03 |
| DE4393917D2 (de) | 1995-09-21 |
| DE4227724A1 (de) | 1994-02-24 |
| PL171842B1 (pl) | 1997-06-30 |
| PL312381A1 (en) | 1996-04-15 |
| DE59310120D1 (de) | 2000-12-14 |
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