Territory Stories

Bore Completion Reports, Replacement Production Bore RN 31170, new Replacement Observation Bores RN 31171, RN 31172 & RN 31173.

Details:

Title

Bore Completion Reports, Replacement Production Bore RN 31170, new Replacement Observation Bores RN 31171, RN 31172 & RN 31173.

Creator

Stall, Bill

Collection

E-Publications; E-Books; PublicationNT; Report no. 33/97

Date

1997

Notes

Date:1997

Language

English

Publisher name

Northern Territory Government

Series

Report no. 33/97

File type

application/pdf

Use

Attribution International 4.0 (CC BY 4.0)

Copyright owner

Northern Territory Government

License

https://creativecommons.org/licenses/by/4.0/

Parent handle

https://hdl.handle.net/10070/228679

Citation address

https://hdl.handle.net/10070/673849

Page content

Technical Report WRD97033 Viewed at 20:02:25 on 17/02/2010 Page 26 of 32. Report No. 33/1997D 1 Drilling Bore 31170 has been drilled to a depth of 103.5 metres adjacent to (about 10 m south at) 8000/PB14. Drilling commenced 24 June 1997and ceased 16 July 1997.The geological sequence encountered as indicated by the drillers log, sample log and natural gamma log (Attachment 2 ) is as follows: Depth Interval (metres BGL) 0-8.5 8.S-18 18-31.S 31.S-60 60-67.5 67.5-91 91-103.5 Description Laterite Brown Clays Brown/VVhite Sandy Clays White Sandy Clay White/Grey Sandy Clays White Coarse Sandy Clay Multi Coloured Clays Selected strata intervals were sampled for particle size analysis using standard' sieve set between 2.8 mm and 0.3 mm aperture sizes. The average sample taken was approximately one (1) kilogram and was drawn from cuttings collected over a metre drilling intervaL Results of the particle size analysis between 71 and 90 metres are given at Attachment 3 and 3A 2. Bore Construction Bore Construction is summarised in the Composite Bore Log (Attachment 1). The construction is as follows: Depth Intervals (metres BGL) 0-8.5 8.5-76 76-103.S 74.2-74.5 74.S-78 78-86.26 86.26-88 88-90 90-96.4 96.4-103.S 4-60 Bys 11/14/97 Drilled Size 406mm 311= 2S0mm Material Detail (internal diameters) 3SS.6mm Steel Casing, Annulus Cemented Annulus 237mm ID ABS Casing Cemented Annulus 60-7S.3m 2S0mm hole drilled to Total Depth Welded Stainless Steel Packer 212mm ID Stainless Steel Tubing Liner 20Smm ID Stainless Steel Screens 1.4= ap:rtures 212mm ID.Stainless Steel Tubing Liner 20Smm ID Stainless Steel Screens l.4mm ap:rtures 212mm ID Stainless Steel Tubing Sump Liner 7mm Blue Metal Gravel Seat 237mm ID ABS Casing Annulus gravel packed with 7mm Blue Metal Gravel 13


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