Drilling Procedure CSA English R0

8/12/2019 Drilling Procedure CSA English R0

1/11

STANDARD OPERATING PROCEDUREFOR COAL DRILLING

SUBJECT : COAL DRILLING

CONTENTS

1. Foreword

2. Coordination Re !on i"i#itie

$. F#ow%&art

'. Pro%ed(ra# te)t

*. A!!endi%e

Revision Status

I (e+Re,.

Date Re,i ionDe %ri!tion

B- C&e% ed C&e% ed C&e% ed A!!ro,ed

Core Sample Procedure www.csaglobal.com Page 1 of 11
http://www.csaglobal.com/http://www.csaglobal.com/


2/11

1. Foreword

The first stage of a geological exploration program generally involves surface mapping to determinecoal occurrence and outcrop sampling to get its preliminary sampling. However, to determine coalcontinuity and uality beyond the immediate surface of different techni ue must be employed. Thisis where drilling ta!es place.The design of each drilling program is controlled by the level of existing !nowledge, density ofexisting drill holes, confidence of existing drill hole information, and any specific needs of theexploration programme.

Prior to drilling commencement, each party have to !now their responsibilities.C#ient Re !on i"i#itieThe exploration company is responsible for the following"

#ll drill sites have the appropriate regulatory approvals$Tenement % forestry permit&ifre uired'

The drill site has been prepared and the sump excavated if re uired The hole collar has been pegged $preferably by a ualified surveyor', and the a(imuth for the

hole is clearly mar!ed for the drillers to set up the rig. )ar! an off&set line within easilymeasured distance of where the wheels or s!ids of the rig will go, or put fore&sight and bac!&sight pegs on the line on which the rig will go. The rig will cause deflection of the compass sothe a(imuth must be mar!ed before the rig arrives at the drill site.

#dvising the driller in writing of declination, target (one and probable final depth. Chec!ing that down&hole surveys are reasonable. *here orientations should start and stop. *or! with driller to get acceptable orientation

mar!s. Some experimentation may be re uired so start doing orientations above the +startdepth.

Chec! core to ensure it is mar!ed properly. -et the driller to come to core shed and sort outany inconsistencies.

# competent representative of the company should visit ach rig at least once a day. Chec! and sign shift reports regularly, and advice contractor promptly of any problems with

recovery or depth measurements. Provision of a permanently fixed stable P C pipe in which to chec! down&hole survey

e uipment.

Contra%tor Re !on i"i#itie Set up rig on correct a(imuth and declination $/nstruments that use a spirit level should be

chec!ed for accuracy' Ta!e down&hole survey measurements at the re uired depths Put orientation mar!s on core as re uired Retrieve the core from the barrel in such a way that the core is pushed out of the barrel

using the minimum water pressure in a smooth and gradual manner so no core isunnecessarily damaged or bro!e and the integrity of the core is maintained.

0riller&induced core brea!s are mar!ed an +x on both sides of the brea! )ar! core depths clearly and accurately. )ar! the top left of the tray +Start and the bottom

right +1nd . *rite the depth of the bottom of each run on a core bloc! and place in the tray atthe end of each run. )ar! the correct location for the mar!er bloc! by a cross on the bottomof compartment. 2ote any core loss on another bloc!. #ny cavities intersected should bemar!ed by a bloc! in the tray $it is helpful to have different coloured bloc!s for differentpurpose'

#ll cavities wider than 34 cm and the depth of the cavity are clearly recorded n the drillerslog and mar!ed on a bloc! in the core tray. 0iscrepancies with regard to cavities must be

resolved as soon as possible

0rilling S5P www.csaglobal.com Page 2 of 11


3/11

Record the depth to water table and any parts of the hole where drilling fluid was lost

Store core so it is secure and safe form contamination or interference until it is collected bycompany representative

Provide sift reports $plods' to the client daily 0o completion wor! on the hole as re uired by the contract

2.1 Coordination Re !on i"i#itie

.................

*ell site geologist will coordinate all coal handling and sampling. /n general, well site geologist isresponsible for"

Supervise drilling activity. 1nsure that all individuals and e uipment meets company SafetyStandards and that all wor! is completed in a safe manner.

)aintain appropriate records. 0escribe down hole geology and structure from drill cuttings or drill core and geophysical

logs. 0escribe detailed coal geology. Collect and log overburden samples and coal core $refer to + CSA Coa# Sa/!#in0

Pro%ed(re '. 0escribe down hole geology and collect samples for geochemical analysis and or

geotechnical studies. 0escribe groundwater conditions. Record any additional information that may be of geological importance and impact on

subse uent mining. Consistent hole naming6numbers& use 7 digits i.e. hole 3 should be hole 443. Some example

s of format suitable for CS#&managed drill holes refer to + CSA o#e Na/in0 Con,entionplease refers to a!!endi) 1 for the details'.

Consistent recording of drill hole coordinates and how measured $prefer metric with datumand (one stated'.

8or reliable coal uality data core is necessary. Triple tube drilling should be used toenhance recovery. Hole si(es should be recorded.

1stimation of core recovery. 8or coal uality evaluation core recovery should be 3*4. /fgeophysics is completed then an estimate of the location of any core loss should bepossible.

0rilling S5P www.csaglobal.com Page $ of 11


4/11

$. F#ow%&art

$.1. F#ow dia0ra/ to &ow !rin%i!a# a%ti,itie d(rin0 t&e e)!#oration !&a e o5 a %oa# /inede,e#o!/ent !ro6e%t

0rilling S5P www.csaglobal.com Page ' of 11

1valuate Surface1xploration

Commence drillingopen hole

geophysical logging

Surveying of all drillsites, sample sites,capping allboreholes

0rilling openholes, pilot partcore holes, coal

sampling

Coal outcropsdrilling

0etailed mapping inspecified area, 8urther coal

sampling

Coal samplesanalysed atlaboratories

Coal 9uality report

Proximate andultimate analysis,other tests and

washability tests

1stimation of insitucoal reservesCalculation of

stripping ratio foropencast mine

Coal reserves1stimation to

measured status:i.e. geological

constraints

-eological report

/ncluding geophysicsgiving seam thic!nessand sedimentary

history

-eological reportCoal geologyCoal uality

Coal reserves


5/11

$.2. F#ow dia0ra/ to &ow dri##in0 !ro0ra/

0rilling S5P www.csaglobal.com Page * of 11


6/11

'. Pro%ed(ra# te)t

Dri## &o#e Co##ar

No A%ti,it- Pro%ed(ra# Te)tEn0#i & Ba&a a

1 0rill hole collar sta!e out

The planned drill collars should be sta!edout prior to drilling and clearly f lagged.

0rill plan /0 and depth target should benoted on the mar!er flag.

Posisi rencana titi! bor harus ditandaidengan ;elas di lapangan.

2omor /0 dan target !edalaman bor harustetrtera dengan ;elas pada pita survey.

2 0rill collar re&survey

#ll drill holes should be collar pic!ed upafter completion.

The collar re&survey are necessary in casethe actual drill collar were moved in certaindistance from its original plan.


7/11

Dri## Pre!aration


1 0rilling access preparation

Create access to drilling location usingdo(er or initiated manually.

1nsure the road can be accessed by drill

rig and other supporting e uipment safely.


8/11

' Rig setting

Place the rig at the specified location withcorrect a(imuth and declination.

Store drilling tools and e uipments ineasily accessible place but does notinterfere drilling activity.

Run pre&start rig engine and other toolsand e uipments, ensure its wor! properly.

Tempat!an rig pada lo!asi yang telahditentu!an sesuai dengan a(imuth dande!linasi yang direncana!an.

Simpan peralatan dan perleng!apanpengeboran ditempat yang mudahdi;ang!au namun tida! mengganggu!eleluasaan !egiatan pengeboran.>a!u!an +pre&start mesin rig besertaperalatan dan perlenga!apan pengeboran,

pasti!an semuanya dapat beroperasidengan normal.

Dri##in0 O!eration


1. 0rilling Run drilling until the planned depth.

0riller should aware drilling depth forcoring.

1nsure the drill bit suitable with drillmethod $open or cored' and groundcondition.

)easure and record drilling progress

>a!u!an pengeboran sampai !edalamanyang direncana!an.

0riller harus waspada terhadap !edalamandrilling untu! dila!u!an pengeboran inti.

Pasti!an bit yang diguna!an sesuai denganmetoda pengeboran $lobang terbu!a atauinti' dan !ondisi bawah permu!aan.

?!ur dan catat !ema;uan !edalamanpengeboran pada catatan pengeboran.



9/11

depth on the drilling notes.

2 >ogging and sampling

Record drill cutting for every 3m depth ofdrilling progress.

Record cored lithology and collect sample$refer to +CS# Coal Sampling Procedure '.

Catat cutting pengeboran setiap 3m!edalaman pengeboran.

Catat dan ambil conto batuan inti $mengacupada +CS# Sampling Procedure '.

$ -eophysical logging

1nsure the hole has reached the targetdepth and clearly flushed prior togeophysical logging.

1nsure logging probe and other loggingtools are wor!ing properly. The mostcommon and suggested tools are calliper,gamma ray, density, spontaneouspotential, and resistivity log.

>ower the probe through the hole withcertain speed until reach the hole bottom.

>ift the probe and activate logging tools to

record.

#d;ust lithology interval depth with thegeophysical logging result.

Pasti!an lobang bor telah mencapai!edalaman yang ditentu!an dan telah di&flushing dengan bersih sebelum dila!u!angeophysical logging.

Pasti!an logging probe dan peralatanlainnya dapat be!er;a dengan bai!. #latyang paling umum dan disaran!an yaitu log!aliper, gamma ray, density, spontaneouspotensial, dan resistivity.

Turun!an probe !e dalam lobang bordengan !ecepatan tertentu sampai dengandasar lobang bor.

#ng!at probe dan a!tif!an alat logginguntu! mulai mere!am.

>a!u!an penyesuaian !edalaman intervallithology dengan hasil geophysical logging.



10/11

Dri##in0 Co/!#etion


1 Rig down

Pull all rods and place bac! on the brac!etproperly.

Pull down the rig.

Collect all tools and e uipments and store

in its proper place.

@eluar!an seluruh pipa dari lobang bor dansimpan !embali pada tempatnya.

Turun!an !embali rig.

@umpul!an seluruh peralatan dan

perleng!apan pengeboran dan tempat!anpada tempatnya.

2 0rill site

Clean drill site before leaving.

Cover drill sump

Rapi!an lo!asi pengeboran sebelumditinggal!an.

Tutup !embali !olam sir!ulasi pengeboran.



11/11

A!!endi) 1.1

A!!endi) 1.$

A!!endi) 2.2

http://www.csaglobal.com/http://www.csaglobal.com/http://www.csaglobal.com/

Drilling Procedure CSA English R0

Documents

Transcript of Drilling Procedure CSA English R0