BULLHEAD BULLHEAD KILLSHEET KILLSHEET INSTRUCTIONS INSTRUCTIONS
The goal of this program is to provide provide an automated method for for comp c ompleting leting a killshee kills heet. t. It of print printing ing a bla blank nk killshe killsheet et if you wish wish to enter enter data data by hand hand.. The Bul Bullhe lhead ad killshe killsheet et co developed developed to support operations in the field. The pages are set up as follows: Daily Recorded Operational Field Data / Bullead !ell Control Cec"li#t (page The "ai "aily ly #e #ecord corded ed $pe $pera ratio tiona nall %ie %ield "ata ata se sectio ction n on on tth he le left sid side of of th the pag page e is in inff various entities (historic& office office and field! gathered for a specific well to successfully bullhead bullh ead opera operation. tion. It It contains contains the the well well geometr geometry& y& form formation ation pressu pressures& res& fluids fluids and and pu The Bullhe Bullhead ad 'ell 'ell on ontro troll heckl hecklist ist sectio section no on n the the top top rrigh ight& t& conta contain ins s surfa surface ce press press well ell&& bul bullhe lhead ad dep depth ths s and and kil killl fflu luid id den densit sity. y. The bo bottom ttom rig right ht se secti ction on sums sums up the the calc calc two and contains the volumes& gallons& strokes& and minutes needed to kill t he well. Bullead !ell Control Calculation# (page Calculation# (page 2 of 2! This page has has been developed developed to t o ffit it the re)uired re)uired well control calculations calculations on a singl systematic order. This page consists c onsists of calculations for kill fluid density& tubular tubular and annular volumes& volumes& over* over*displacemen displacementt considerations considerations and formation and pressure considerations. considerations.
6enerally& no further user information is re)uired. 7owever& if you are not familiar with ,
Step# to Co$pletin% te Kill#eet# .
"ata entry on this form should begin in the upper left hand side of the sheet.
2.
,nter Bullead data in the blank cells as follows:
.
Location ** ,nter your work location and press t he tab key to move to the next c
1.
!ell & ** ,nter your rig8unit8platform number.
.
9sing the mouse& click on the cell named Ca#in% OD and enter data. 9se the do your keyboard to get to the next cell re)uiring data.
.
$n the cell named Sa'ety Factor & select the percentage by c hoosing the correct drop down list and click the left mouse button. The Internal (ield will then be cal entered automatically by the program. The cursor will then move to the next blan
;.
In the section called Tu)in%& continue data entry until you reach the Sa'ety Fact the steps above.
3.
,nter data until you have c ompleted the *er'oration# section at the bottom of th
<.
9se the mouse to move to the top of the page and enter the Te#t Ratin%.
-. Then use the mouse to move t o the next column and cell named Sur'ace Line +
"aily #ecorded $perational %ield "ata =ocation: >BI6* 'ell ?: >B*<1 CASIN TREE/BO* SURFACE +OLU0ES asing <.2 Test >urface 2;3.$" #ating =ine /olume (psi! (bbls! (in! asing 3. I" apacity 5er %oot
Bullhead 'ell ontrol hecklist ompleted By: 7,@#4 B#IT$
(in!
-.-;-;
*U0*S 5ump ? 5ump -.-<11;31 $utput (C! (bbls8stk! +aximum 2&--5ump 5ressure (psi! 5ump ?2 5ump -.-<2< $utput C (bbls8stk! +aximum 2&--5ump 5ressure (psi!
(bbls8ft!
&33
=ength +"
asing
(ft!
=ength
&;3
T/" asing asing
-&<--
(ft!
Internal 4ield --C (psi!
<-C <&3-
>afety %actor Internal yield
(psi!
Bullhead pg of 2
>hut In 2 >hut In 2 (psi! asing 5ressure (psi! Tubing 5ressure BULLHEAD *U0* RATE TO KILL !ELL 5ump "esired Aill 5ump >trokes #ate E @o. (?! $utput 5er +inute (bbls8min! (stks8min! (bbls8stk! 2.3 -.-<11;31 -
22-2 $il enter ourt 7ouston& Texas 9>0 ;;-; 5hone: 23.;31.1;-,*mail: wildwellFwildwell.com G'ild 'ell ontrol& Inc. /2-.2-
BULLHEAD DE*TH TO KILL !ELL DE*TH TO CALCULATE KILL =ength &< FLUID DENSIT( >elect ,ither Top or Bottom 5erforation to Aill 'ell +" 3; (ft! %ormation $verdisplacement to Aill 'ell (bbls! .- "epth T/" (ft! 5erform calculations on next page before completing data below D starting bullhead operations.
Aill %luid "ensity
2.
+aximum
(ppg!
>tatic 5ressure
; +ax >tatic (psi!
on Tubing (Beginning)
TUBIN Tubing .-$" (in! Tubing 1.;; I" (in! apacity -.-22 5er %oot (bbls8ft! &< =ength +" to ,nd of Tubing (ft! Tubing ;&--
FOR0ATION %ormation -&25ressure (psi! .+aximum (ppg! %luid 'eight
%luid 'eight
<-C &31-
>afety %actor Internal yield
(psi!
Tubing
&---
ollapse --C
(psi!
>afety %actor
<-C 1&--
Internal yield
2.-
*ACKER 5acker >et 0t +"
(psi!
(ft!
5acker
*ERFORATIONS T$5 5,#%$#0TI$@> &33 =ength +"
to Top of 5erf =engthT/"
to Top of 5erf
(ft!
&;3 (ft!
B$TT$+ 5,#%$#0TI$@>
&< to Bottom of 5erf (ft! &3; =engthT/" to Bottom of 5erf (ft! =ength +"
>et 0t T/"
BULLHEAD SCHEDULE CHART /olume /olume >trokes +inutes
(ppg!
CIRCULATIN *ORT >liding >leeve +" (ft! >liding >leeve T/" (ft!
Internal 4ield --C (psi!
with Aill %luid !nd)
TUBIN DATA FOR +OLU0E, STROKES AND TI0E /ol. (bbls! /ol. (gals! >trokes +inutes >urface to ,nd of Tubing -.1 2&1;.3 &; 221 ,.$.T. to 5erforations -.-.>urface to 5erforations -.1 2&1;.3 &; 221 $verdisplacement .-2-.- 2
ANNULAR FLUID 0nnular
5ressure on Tubing (psi!
(ft!
+ax >tatic Tubing 5ress.
Beginning (stks! (mins! $ $ $ ; 2&1;.; 3.22 ;2 2 &2<.1 &.11 ;3< ;&<1. 2&--1. <; 22 -&<-.3 2&;2.33 31 &23. &1-.; ;< &33.2 1&--3.2 3 112 3&.< 1&;.1 1 - 2&3. &11.; 2 3 2&32<. &-2.<3 < 2&1;.3 &;.221 #ow - Aill 5oint /alues >urface to 5erforations ,nd*Aill %luid (bbls!
(gals!
Bullhead Tubing 5ress.
(psi!
asing 5ressure (psi!
$
2 1 ; 3 < -
Bbls >urf to A5 E - Bbls per >tep
6als >urf to
>tks >urf to
+ins >urf to
Beginning*,nd
A5 E -
A5 E -
A5 E -
E - 5si
6als per >tep >tks per >tep +ins per >tep "rop per >tep
21; ;
3
22
$verdisplacement values not included in chart. #eference additional values when kill fluid is at perfs. to overdisplace.
BULLHEAD !ELL CONTROL CALCULATIONS
-
Tu)in% Data1 For +olu$e#, Stro"e# and Ti$e
Bullhead pg. 2 of 2
=ength
apacity
x (bbls8ft!
+" (ft! >urface =ine /olume: Tubing /olume:
&<
/olume
(bbls! 2;3.2.1
-.-22-
>trokes
5ump $utput
-.-<1 -.-<1
,$T to 5erforations (sg /ol!:
-
Kill *oint Sur'ace to *er'oration#1
-.-;-3
-.-<1
-.1
.-
+olu$e Barrel# to allon#1
/ol (bbls!
12 12 12 12
&; (stks!
-.-<11;3
-
-
Total +ins. >urface to 5erfs.
221 (mins!
-
2
/ol(6als!
onversion
-.1 x -.-.1 .-
>urface to ,.$.T. (incl. surface line volume!: ,.$.T. to 5erforations (sg /ol.!: >urface to 5erforations: $verdisplacement:
<< 2
221.-
-
Total >tks. >urface to 5erfs.
(bbls!
O.erdi#place$ent1
-
&;
-.-
Total /ol. >urface to 5erfs.
+inutes
E (stks8min! (mins!
2&<1 &;-
-.1
>urface to ,nd of Tubing (,.$.T.! /ol.:
Aill #ate
E (bbls8stk! (stks!
2&1;.3 -.2&1;.3 2 Kill *oint Sur'ace to *er'oration# 2-.-
Kill Fluid Den#ity1 Aill %luid "ensity
%ormation
-&2- E %ormation
5ressure
(psi!
&3; E
"epth T/"
-.-2
(ft!
Aill %luid
2.
'eight
(ppg!
For$ation Stren%t and *re##ure Con#ideration Data1 +aximum "llowable %ormation 5ressure
+aximum
.- H %ormation
(%racture!
%luid 'eight
(ppg!
,stimated 7ydrostatic
%ormation
5ressure in Tubing to 5erforations
5ressure
&3; H
"epth T/"
-&2- 3 >hut In (psi!
0llowable %ormation
+aximum >tatic 5ressure with Aill %luid (,nd!
0llowable %ormation
+aximum
(psi!
5ressure (fracture!
+aximum 5ressure (fracture!
-&; 3 %ormation 5ressure
-&; (psi!
<&<<
7ydrostatic 5ressure
<&<< +aximum
7ydrostatic 5ressure
(psi!
in Tubing to 5erforations
(psi!
+ax. 0llow. %ormation 5ressure
(psi!
in Tubing to 5erforations
-&; 3 ,stimated (psi!
2 ,stimated
'ellhead 5ressure on Tubing
+aximum >tatic 5ressure on Tubing (Beginning!
-.-2
(ft!
;
>tatic 5ressure on Tubing
(psi! (Beginning!
-&2- +aximum (psi!
>tatic 5ressure on
(psi!
Tubing with Aill %luid
(,nd!
22-2 $il enter ourt 7ouston& Texas 9>0 ;;-; 5hone: 23.;31.1;-,*mail: wildwellFwildwell.com G'ild 'ell ontrol& Inc. /2-.2-
