Proposed Cement Design Well
Casing 20” 13-3&%”
GMJT-01 GMJT-02 GMJT-03 GMJT-04 GMJT-05
,-5&%”
”
Top of Cement !"fa#e Lead' !"fa#e
Lead ead (ppg (ppg))
Tail' Tail' 150m aoe 133&% s*oe Lead' 150m aoe 133&%” s*oe Tail' Tail' 150m aoe ,-5&%” s*oe Top of Line"
Tail ail (ppg (ppg))
12$+
15$% 15
%$12$+
15
%$15
%$.ased on t*e tale aoe is a gene"al g!ideline #ement design fo" all Gelama Me"a* p"oposed /ells in#l!ding /eig*t of sl!"" and top of #ement info"mation fo" ea#* *ole se#tion$ Lead sl!"" densit is 12$+ ppg and Tail sl!"" densit is 15$% ppg fo" 13-3&%” and ,-5&%” *ole se#tion /*ile #ond!#to" #asing 20” and Line" ” sl!"" densit is 15$% ppg$ ample Cal#!lation fo" GMJT-01 Cementation 13-3&%” Casing T*e follo/ing #al#!lations a"e "e!i"e i"ed p"io" to #ement o in#l in#l!d !din ing g Lead ead and and Tail ail sl!" sl!"" " ol!mes mi /ate" and addities !sage$ 1$ ind ind t*e lengt lengt* * of t*e t*e "at *ole6 s*oe oint and lengt* et/een open *ole and #asing s*oe$ 7at *ole 8 Total 9ept* : 13-3&%” Casing *oe 8 +04$0 m : +00$0 m 84m *oe oint 8 13-3&%” Casing *oe : 9"ill Colla" 8 +00$0 m : 54$0 m 8 2+ m
;pen *ole lengt* fo" tail sl!"" 8 13-3&%” Casing s*oe : Top of tail 8 +00$0 m - 450$0 m 8 150 m ;pen *ole lengt* fo" lead sl!"" 8 Top of tail : 20” Casing s*oe 8 450$0 m : 350$0 m 8 100 m Lengt* along 20” Casing 8 350$0 m : +,$, m 8 2%0 m 2$ Cal#!late ol!mes fo" Lead Cement l!""6 12$+ ppg$
9)2 : (>nne" ;9)2? 0$00,14 3$2%1 2%0 m 8 =(1%$3)2 : (13$35)2? 0$0,14 3$2%1 2%0 m 8 153$5 ls
Total sa#Bs of #ement 8 541 ss ea /ate" 8 541 ss 11$3, gps 8 +1+2 gal 8 14+$ ls Miing l!id 8 541 ss 12$50 gps 8 ++2$5 gal 8 1+1 ls 7eta"de" 8 541 ss 0$0+ gps 8 32$5 gal l!id-Loss 8 541 ss 0$05 gps 8 2$1 gal 9ispe"sants 8 541 ss 1$00 gps 8 541 gal
Tail l!"" 9etails' Tail l!"" ol!me 8 54 ft3 Total sa#Bs of #ement 8 4+0 ss ea /ate" 8 4+0 ss 4$+4 gps 8 2134$4 gal 8 50$% ls Miing l!id 8 4+0 ss 5$3, gps 8 24,$4 gal 8 5,$0 ls 7eta"de" 8 4+0 ss 0$02 gps 8 ,$2 gal l!id-Loss 8 4+0 ss 0$05 gps 8 23$0 gal 9ispe"sants 8 4+0 ss 0$35 gps 8 1+0$, gal 5$ Total #ementing and #*emi#als !sage fo" 13-3&% *ole se#tion$ Class EG” 8 541 ss A 4+0 ss 8 1001 sa#Bs 7eta"de" 8 32$5 gal A ,$2 gal 8 41$ gal l!id-Loss 8 2 gal A 23 gal 8 50 gal 9ispe"sants 8 541 gal A 1+1 gal 8 02 gal Tale of Cement sl!"" ol!me fo" ea#* *ole se#tion p"oposed fo" GMJT-01 Well
Casing
20”
Tpe of Cement & Fddities Class EG” ea Wate" Miing l!id
133&%”
l!id-Loss Class EG” ea Wate"
Lead Tail l!"" l!""
Total 15+4 ss 1,3$+ ls 1,+$+ ls 4 gals 1001 ss 1,$5 ls
Miing l!id GMJT-01
,-5&%”
7eta"de" l!id-Loss 9ispe"sants Class EG” ea Wate" Miing l!id 7eta"de" l!id-Loss 9ispe"sants
”
1+1$0 ls 32$5 gals 2 gals 541 gals 1032 ss 2,$, ls 30$2 ls +1$, gals 51$+ gals 1032 gals
5,$0 ls ,$2 gals 23 gals 1+1 gals 210 ss 23$2 ls 2+$, ls 4$2 gals 10$5 gals 3$4 gals
Class EG” ea Wate" Miing l!id 7eta"de"
334% ss 30 ls 430 ls 301$3 gals
l!id Loss
1+$4 gals
9ispe"sants
1004$4 gals
220$0 ls 41$ gals 50 gals 02 gals 1242 ss 303$1 ls 334$1 ls ++$1 gals +2$1 gals 1105$4 gals 334, ss 30 ls 430 ls 301$+ gals 1+$5 gals 1004$4 gals
;il /ell #ement is man!fa#t!"ed to F> pe#iH#ation 10 and is diided into % #lasses (F-I) depending !pon p"ope"ties$ Class G and I a"e asi# /ell #ements /*i#* #an e !sed /it* a##ele"ato"s and "eta"de"s to #oe" a /ide "ange of dept*s and tempe"at!"es$ T*e p"in#ipal die"en#e et/een t*ese t/o #lasses is t*at Class I is signiH#antl #oa"se" t*an G$ T*e #al#!lations fo" total #ement and addities "e!i"ed in t*e tale aoe is "efe""ing to GMJT-016 *o/ee" t*e ol!me #ement #al#!lation is app"oimatel t*e same fo" all p"oposed /ells sin#e all /ells !se simila" *ole se#tion and #asing s*oe dept*$ Fdditional #*emi#als a"e !sed to #ont"ol sl!"" densit6 "*eolog6 and K!id loss6 o" to p"oide mo"e spe#ialied sl!"" p"ope"ties$ Fddities modif t*e e*aio" of t*e #ement sl!"" allo/ing #ement pla#ement !nde" a /ide "ange of do/n*ole #onditions$ .ased on t*e addities !sed fo" t*is Gelama Me"a* /ell6 t*e"e a"e "eta"de"s6 K!idloss addities and dispe"sants$ 7eta"de"s a"e #*emi#als t*at "ed!#e t*e t*i#Bening time of t*e sl!"" to aid #ement pla#ement$ l!id-Loss addities is a mate"ial /*i#* p"eent sl!"" de*d"ation and "ed!#e K!id loss to t*e fo"mation /*ile dispe"sants a"e #*emi#als6 /*i#* lo/e" t*e is#osit and ma also in#"ease f"ee /ate"$ Cement .ond Log (C.L) is one of t*e tools !sed to eal!ate t*e !alit of t*e #ement and t*e ond et/een t*e #ement and t*e
#asing$ T*e C.L log p"oides a meas!"e of t*e #ement to #asing ond and #annot e !sed to !antif t*e amo!nt of #ement p"esent$
