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air-flush rotary-percussion methods

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Journal Article
Published: 01 May 1979
Quarterly Journal of Engineering Geology and Hydrogeology (1979) 12 (2): 79–95.
... are dealt with, mention is made of the less common methods, some of which may be selected for areas where local conditions warrant their use. Cable-tool (percussion), rotary and other types of drilling are discussed and also the use of clay-based and organic polymer muds, air-flush, and foam. ©...
Journal Article
Published: 26 October 2016
Quarterly Journal of Engineering Geology and Hydrogeology (2016) 49 (4): 364–375.
... for the ground investigation: cable percussive boreholes with rotary coring at depth. The rotary drilling used mist flush and coring at ‘P’ size ( c. 120.6 mm diameter hole) with core liner and core of 92.1 mm diameter. This had not been able to distinguish between material that was sand in situ and beds...
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Journal Article
Published: 01 February 1988
Quarterly Journal of Engineering Geology and Hydrogeology (1988) 21 (1): 7–31.
... Land, Proceedings of the Institution of Civil Engineers Conference, 197–212. Horner, P. C. & Sherrell, F. W. 1977 . The application of air-flush rotary-percussion techniques in site investigation. Quarterly Journal of Engineering Geology, London, 10 , 207 – 221...
Journal Article
Published: 01 May 2012
Quarterly Journal of Engineering Geology and Hydrogeology (2012) 45 (2): 173–181.
... or brown mudstone Sherwood Sandstone Group 0.6 188.6 Drilling method Air-flush hammer rotary drilling Drilled diameter 200 mm to 3.2 m depth; 140 mm to base of borehole Water strikes 6.6 m depth; increasing water flushing with depth to c . 50 m depth; very large increase in water, full...
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Journal Article
Published: 01 August 2010
Environmental & Engineering Geoscience (2010) 16 (3): 211–227.
... properties that would facilitate treatment of the foundation. In order to further develop understanding of the foundation conditions, a comprehensive system of logging both exploratory (HQ size core) and production (rotary percussive drilling) borings, including downhole geophysical methods...
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Journal Article
Published: 13 September 2019
Quarterly Journal of Engineering Geology and Hydrogeology (2019) 52 (4): 459–480.
.... The locations of the exploratory holes focused on the proposed turbine locations and comprised 11 machine-excavated trial pits to investigate recorded anomalies, construction lay-down areas and site route-ways; three cable percussive boreholes; and 12 rotary boreholes progressed using open-hole drilling...
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Journal Article
Journal: AAPG Bulletin
Published: 01 November 1932
AAPG Bulletin (1932) 16 (11): 1144–1151.
... of secrecy of many small ownerships. At present there is a general lack of capital. In addition to first-class scientific advice, there used to be much that was quite unreliable. Most of the drilling is done by the cable-percussion system, with water flush; rotary has rarely been used so far. Testing has...
Journal Article
Journal: AAPG Bulletin
Published: 01 October 1929
AAPG Bulletin (1929) 13 (10): 1257–1273.
.... These points are here given. The influence of the pressure of the water column in the well on the thermometer. Rise or fall of the temperature of the well, owing to the flushing of the well with cleaning liquids. Loss of heat owing to air or water circulation in the well during the measurements...
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Journal Article
Journal: AAPG Bulletin
Published: 01 May 1928
AAPG Bulletin (1928) 12 (5): 463–499.
..., only water-flush systems are used at present. The cable percussion system is most widely used; the rotary system has been used only once, at Nienhagen. In the province of Brandenburg and in parts of the provinces of Saxony and Lower Silesia the right to produce oil belongs to the Prussian State...
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Journal Article
Published: 01 August 2012
Quarterly Journal of Engineering Geology and Hydrogeology (2012) 45 (3): 252–334.
... and/or water inflow). Open-hole rock roller bits were used to a depth of 7–12 m above the tunnel crown and then H size core was recovered using diamond rotary drilling with air flush. One borehole successfully over-cored a gouge-filled fault for its entire length through flinty chalk. No groundwater...
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Series: Geological Society, London, Engineering Geology Special Publications
Published: 01 January 2012
DOI: 10.1144/EGSP25.07
EISBN: 9781862393875
..., in particular rotary percussion using a down the hole hammer with air flush, are commonly used for the construction of boreholes through the coarse granular deposits characteristic of gravel fans and wadis (bearing in mind the possibility of flooding). Penetration of these deposits is often slow, and is impeded...
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Journal Article
Published: 01 May 2012
Quarterly Journal of Engineering Geology and Hydrogeology (2012) 45 (2): 183–196.
... are often employed in wells drilled by the percussion method; this is because the annular space between the borehole and screen is very small, and therefore, any collapse of aquifer material against the screen, which might lead to instability, is minimal. In rotary drilled boreholes, the borehole diameter...
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Journal Article
Journal: AAPG Bulletin
Published: 01 July 1934
AAPG Bulletin (1934) 18 (7): 871–891.
... the following. 9 Drilling in Transylvania is done with the hydraulic percussion system using a 35–40 H. P. gas engine and more recently with rotaries. A very special method of cementing water strings is used which requires the setting of many strings of casing. For example, in well No. 14, at Sarmasel...
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Journal Article
Published: 01 February 2013
Vadose Zone Journal (2013) 12 (1): vzj2012.0067.
... with depth. Their locations were selected based on the surface geophysical measurements. Two drilling campaigns were performed: in the TDZ (September 2010) and in the AZ (August 2011). Five boreholes were drilled using percussion with air flushing, without producing cored samples, to a depth of 25 m...
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Journal Article
Published: 25 June 2019
Quarterly Journal of Engineering Geology and Hydrogeology (2020) 53 (1): 88–100.
... (2015), resulting in six 20 m deep boreholes arranged in three pairs ( Figs 6 and 7 ) aligned landward from the cliff top ( Hobbs et al. 2015 a ). The Phase 1 boreholes (1a, 1b, 2a & 2b) were completed by cable percussion and open-hole rotary (with air-flush), whereas the Phase 2 boreholes (3a...
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Journal Article
Published: 01 April 2019
Quarterly Journal of Engineering Geology and Hydrogeology (2019) 52 (4): 401–413.
... have involved trial pits and various types of drilling. In the UK there would have been shell-and-auger (i.e. light cable percussion), rotary drilling using water flush with both open-hole and some coring probably with single core barrels. In situ testing in boreholes was mainly limited...
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Journal Article
Published: 01 December 1970
Quarterly Journal of Engineering Geology and Hydrogeology (1970) 3 (3): 151–181.
... rock texture preserved, cohesive Residual soil--silty clay composition very cohesive Hammer blow-- penetrates surface. Core NX size can be broken and crushed by hand. Soaked in water does not disintegrate Coring not possible by ordinary rotary methods. Soaked in water disintegrates No rock texture...
Journal Article
Published: 09 February 2024
Quarterly Journal of Engineering Geology and Hydrogeology (2024) 57 (2): qjegh2023-116.
... undertaken at the site is described in Wealthall et al. (2002) . The methods used for groundwater sampling and analysis are explained in Spence et al. (2005 a ) . Cored boreholes were drilled in the saturated zone at the locations of MW15, MW16, MW17, MW20 and MW23 using rotary water flush methods...
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Series: EAGE Education Tour Series
Publisher: EAGE
Published: 01 January 2018
EISBN: 9789462824508
... the samples, which are then pulled out by the strong wire/ cable into the tool. The percussion sidewall coring is faster and cheaper than other coring methods. However, the brutal force used to propel the barrel into the rock tends to damage the rock. The total number of samples and their size vary between...
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Journal Article
Published: 22 April 2024
Geochemistry: Exploration, Environment, Analysis (2024) 24 (2): geochem2023-046.
... with incomplete flushing of analytical equipment should be evident in the method blank results provided by the laboratory. At this point it would also be beneficial to have a conversation with the laboratory about protocols for the preparation and analysis of high-grade samples, either by flagging individual...
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