panorama examination

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Drilling Engineering 3 rd stage Midterm Panoramic Examination Note - Find your names serial in the Student Appendix1 and substitute it as SNS anywhere required. - The answer must be submitted at 23/11/2014 as a dead line. Q1:- According to geological data the location of a well is determined and the strata sequence is expected as following:- Thickness ft bottom level ft Layer 400 400 dry recent soil 450 850 Sandstone (fresh water) 150 1000 shale 590 1590 Limestone (fractured) 610 2200 Shale 450 2650 Limestone (fractured) 150 2800 shale 440 3240 sandstone 260 3500 Shale 500 4000 Halite 1000 5000 sand Data Density of soil bulk 2 g/ cc, air density 1.2g/L, gas density 0.8 ppg. Porosity of soil, sandstone and limestone assumed to be:- =0.4 - 0.002*SNS - depth/30,000 Average porosity of each layer must be used (in the med of the layer)

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Page 1: Panorama Examination

Drilling Engineering 3rd stage

Midterm Panoramic Examination

Note

- Find your names serial in the Student Appendix1 and substitute it as SNS anywhere required.

- The answer must be submitted at 23/11/2014 as a dead line.

Q1:- According to geological data the location of a well is determined and the strata sequence is expected as following:-

Thickness ft bottom level ft Layer

400 400 dry recent soil450 850 Sandstone (fresh water)150 1000 shale590 1590 Limestone (fractured)610 2200 Shale450 2650 Limestone (fractured)150 2800 shale440 3240 sandstone260 3500 Shale500 4000 Halite1000 5000 sand

Data

Density of soil bulk 2 g/ cc, air density 1.2g/L, gas density 0.8 ppg. Porosity of soil, sandstone and limestone assumed to be:-

=0.4 - 0.002*SNS - depth/30,000 Average porosity of each layer must be used (in the med of the layer) Formation fluid density bellow 850 ft level assumed to be:-

= 1.03 +0.0005*SNS g/cc Oil/ gas contact level = 4300 ft, water/oil contact level = 4600 ft Mud system volume =1000 bbl., only 500 sacks of bentonite and 10000

sacks of barite are available. Bentonite is a clay type material .

Page 2: Panorama Examination

Required:-

1. Draw mud weight window MWW from 0 to 5000ft with detailed calculations :

- Actual formation fluid pressure line 2 degree- Actual overburden pressure line 3 degree- Pressure gradient lines of your proposed drilling muds for

drilling 0-3900ft and 4000ft to 5000 ft intervals 1 degree2. Where do you suppose to set surface casing? 0.5 degree3. Prepare adequate quantities of mud for drilling 0-3900ft and 4000ft to

5000 ft intervals. 3.5 degree

Figure: Expected strata sequence

Good Luck

Nabil Adil Tayeb

16/11/2006

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Appendix 1 Student Names Serial SNS

زنجير

ةSNSئیمیلناو

ئاكام رةسول مينة[email protected],1كاك احمد

ئاويَزان عبدللة كريم[email protected],2مارف

[email protected],3احمد ابراهيم حسن3

احمد فواد محمد[email protected],4على)كةوتوو(

باوان خؤشناو اسعد[email protected]حسين

[email protected] بةرهةم جالل عثمان[email protected],7بةهرة قادر وةتمان6

مصطفىبريار محمد [email protected],8محمد

[email protected],9بيوار يوسف كريم8

ثشتيوان خدر برايم[email protected],10خدر

11ثيَشةوا لقمان احمد11

خةرامان محمد صالح[email protected],12حسن

[email protected],13خيال احمد محمد13

دارةوان محمدعلي[email protected],14محمود

ذوار صالح الدين[email protected],15عبدالرحمن

رازاو جالل سعيد[email protected],16احمد

ريَبةند قاسم حمد[email protected],17اسماعيل

[email protected],18ريهام سالم اسرائيل[email protected],19سفيان محمود محمد[email protected],20سكااََل محمد رةشيد21

شاكر سليمان غانو[email protected],21علي

شظان جمال[email protected],22حمةرةشيد صالح

[email protected],23 طيالن عدنان رةحمان24

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محمود[email protected],24ظان نوزاد رفعت28

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SNSئیمیلناوز

عمار موسى زكر[email protected]عبدال

عبدااَللةحميدغيث[email protected]ياسين

قةشةنط وشيار[email protected],27شفيق

كمال رحمن احمد[email protected],28عبداللة

29 احمدمصطفىكيفي [email protected] اَلنة ابوبكر فتاح[email protected],31اَلوةند عادل كمال32

مة شخةَل كاوة انور[email protected],32نادر

مةبةست انور[email protected],33محمدعلي

مةزن يادطار جالل[email protected],34محى الدين

مجيد مجيد33 [email protected],35طالل

محمد رحمان مولود[email protected],36دةرويش

[email protected],37محمد سعود حسؤ47

محمد نبيل مغديد[email protected],38حويز

[email protected],39محمود غازى محمود[email protected],40 محمد صادقمصطفى[email protected],41خضرهاكار غريب 41

هاوذين فاتح[email protected],42محمدامين

[email protected],43هاورىَ سليَمان همزة31

هةلَمةت حسن محمد[email protected],44امين

هونةر بكر حسن[email protected],45حمةعلي

وارظين كامران جمال[email protected],46حسن

ياد ضةلةنط محمد[email protected],47نافع

Page 6: Panorama Examination