GB911168A - Improvements in or relating to impact drilling apparatus incorporating a flushing action - Google Patents
Improvements in or relating to impact drilling apparatus incorporating a flushing actionInfo
- Publication number
- GB911168A GB911168A GB13686/60A GB1368660A GB911168A GB 911168 A GB911168 A GB 911168A GB 13686/60 A GB13686/60 A GB 13686/60A GB 1368660 A GB1368660 A GB 1368660A GB 911168 A GB911168 A GB 911168A
- Authority
- GB
- United Kingdom
- Prior art keywords
- string
- bit
- head
- sleeve
- stop
- 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
Links
- 238000005553 drilling Methods 0.000 title abstract 3
- 238000011010 flushing procedure Methods 0.000 title abstract 3
- 239000007788 liquid Substances 0.000 abstract 5
- 230000004048 modification Effects 0.000 abstract 3
- 238000012986 modification Methods 0.000 abstract 3
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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
-
- 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
- E21B11/00—Other drilling tools
- E21B11/04—Boring grabs
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
911,168. Boring earth. GROSPAS, P. April 19, 1960 [April 18, 1959], No. 13686/60 Class 85. [Also in Group XXV] Impact drilling apparatus comprises a hollow drill string 3 through which flushing liquid flows, a bit 5 slidable on the string, a reciprocable head 6 which latches on to the bit when the latter is at the bottom of the hole, and a stop 8 which releases the head from the bit at the top of the bit's stroke. Fig. 1 shows the stop formed by the casing of the hole, and means 7 for reciprocating the head independent of the string. The head shown in Figs. 4, 7 is fixed to the string so that with the parts positioned as shown, the bit may be lifted by the string, a sleeve 15 biased by a spring 16 holding balls 14 in a groove 20a at the top of the bit, and the balls being engaged by a ring 13 attached to the string. At the top of the bit's stroke a rim 19 on the sleeve is engaged by the stop 8 permitting the balls to move from the groove and the bit to fall (Fig. 7). In modifications, the balls engage slots in the sleeve and the sleeve is inside the upper end of the bit. Fig. 15 shows apparatus having concentric bits 5e, 5i, either or both bits drilling according to the stroke of the string. The bit 5i slides on the string and coacts with a head 6i fixed to the string, the stop 8i being mounted on the head 6e for the bit 5e. The head 6e is slidably mounted on the string, and its sleeve 15e has rods 26 which engage the stop formed by a rim 19 on the sleeve 15i. The apparatus of Fig. 16 is actuated by changes in the pressure of the liquid within the string. The lower end of the string is formed by a bell 27 which encloses a valve seat 28 forming the upper end of a string extension tube 3i. Sliding on the tube 3i is a piston 31 carrying the latching head 6. Slight pressure on the liquid in the string forces a valve 30 on the seat and sinks the piston so that the head is latched to the bit. A reduction in the pressure within the string causes the piston to lift the bit which is released to fall when the rods 36 engage the stop 35 on the tube 3i. The piston continues to rise until it contacts projections 34 to lift the valve so that detritus is swept up the tube and string. In a modification (Fig. 18, not shown), the bell slides upon the string and the bit is lifted by increased air pressure in the string. In a further modification (Fig. 19, not shown), the fall of the bit is assisted by a spring and the cutting part of the bit is formed by scoops which are periodically closed. The flushing liquid flows up the strings, the flow of the liquid may be secured by gas lift, and the bits may be rotated.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR792471A FR1238267A (en) | 1959-04-18 | 1959-04-18 | Percussion drilling rig with continuous cleaning |
Publications (1)
Publication Number | Publication Date |
---|---|
GB911168A true GB911168A (en) | 1962-11-21 |
Family
ID=8713821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13686/60A Expired GB911168A (en) | 1959-04-18 | 1960-04-19 | Improvements in or relating to impact drilling apparatus incorporating a flushing action |
Country Status (5)
Country | Link |
---|---|
US (1) | US3237704A (en) |
BE (1) | BE589733A (en) |
ES (1) | ES257405A1 (en) |
FR (1) | FR1238267A (en) |
GB (1) | GB911168A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112554781A (en) * | 2020-12-04 | 2021-03-26 | 中煤科工集团重庆研究院有限公司 | Dredging and re-pumping method for collapse of coal seam gas extraction drill hole |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3568783A (en) * | 1969-05-09 | 1971-03-09 | Baker Oil Tools Inc | Fluid-actuated impact apparatus |
FR2458362A1 (en) * | 1979-06-05 | 1981-01-02 | Sauer Transmissions | Alternating hammer for ramming or drilling - has percussion stroke under effect of spring compressed during return stroke, giving constant percussion force |
CN108678659B (en) * | 2018-05-11 | 2023-06-23 | 西南石油大学 | Down-hole descending friction low-frequency impact drilling tool |
CN115749579B (en) * | 2022-11-29 | 2024-04-05 | 兖矿能源集团股份有限公司 | Emulsion drilling machine |
CN118241975A (en) * | 2024-05-29 | 2024-06-25 | 枣庄矿业(集团)有限责任公司蒋庄煤矿 | Mine exploitation rock drills crushing equipment |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1787001A (en) * | 1927-08-26 | 1930-12-30 | Raymond Concrete Pile Co | Excavating apparatus |
US1730704A (en) * | 1927-10-27 | 1929-10-08 | Wild Charles | Digging mechanism for wells and the like |
US2223645A (en) * | 1936-12-08 | 1940-12-03 | Solomon Guillaume Jean | Well and the like sinking apparatus |
US2829716A (en) * | 1954-07-21 | 1958-04-08 | Exxon Research Engineering Co | Wire line hydraulic pulling tool |
-
1959
- 1959-04-18 FR FR792471A patent/FR1238267A/en not_active Expired
-
1960
- 1960-04-14 BE BE589733A patent/BE589733A/en unknown
- 1960-04-16 ES ES0257405A patent/ES257405A1/en not_active Expired
- 1960-04-18 US US23060A patent/US3237704A/en not_active Expired - Lifetime
- 1960-04-19 GB GB13686/60A patent/GB911168A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112554781A (en) * | 2020-12-04 | 2021-03-26 | 中煤科工集团重庆研究院有限公司 | Dredging and re-pumping method for collapse of coal seam gas extraction drill hole |
Also Published As
Publication number | Publication date |
---|---|
BE589733A (en) | 1960-08-01 |
US3237704A (en) | 1966-03-01 |
FR1238267A (en) | 1960-08-12 |
ES257405A1 (en) | 1960-09-01 |
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