Agenda • Arrival/Welcome • Safety Orientation • Facility Tour • Presentation on Basic Wellhead and API Requirements • Lunch • Stack-up of MBU-LR Speed Head System/Conventional

Wellhead System/Overview of Frac Tree Equipment • Discussion | Q&A

Conventional Assemblies • Include the casing head, casing

hangers, spool sections, tubing head, tubing hanger, valves and fittings

• Provides safe and adequate means for supporting and attaching blowout control equipment during drilling

• Provides sealing between casing strings and a connection for the Christmas tree

• Requires manipulation of BOP’s with each added section

• Tubulars suspended on “slips”

Casing Heads

C2 Casing Head (With FPO’s)

C2-BP Casing Head (With Two Lockscrews)

C2 Casing Head (With LP Outlets and Baseplate)

Test Port

O-Ring Groove

Available with Threaded or Slip-on and Welded bottoms

Tubing Heads

CTH Tubing Head (With Secondary Bushing)

CTH Tubing Head (With integral bottom)

Test Port

Slip Type Casing Hangers

C1 Casing Hanger and H Plate. Non-Automatic slip-

type hanger. Used to suspend light to medium

casing loads in C2 & C2BP Casing Heads

C2 Casing Hanger. Standard automatic slip-type casing hanger. Used

to suspend medium casing loads (50% joint strength) in C2 & C2BP

Casing Heads

C9 Casing Hanger. Heavy duty automatic slip-type casing hanger. Used to suspend high casing loads in C9 & C9BP

Casing Heads

Mandrel Hangers

One Piece Mandrel Hanger Fluted Mandrel Hanger

Tubing Hangers and Tubing Head Adapters

CTH-2W wrap around hanger with BO2 coupling

and BO2 tubing head adapter

CTH-EN with EN tubing head adapter

T40 Hanger with T40 tubing head adapter

BPV Threads

BPV Threads

BPV Threads

CTH-2W

Multi-bowl Wellhead Systems

MBS MBU

11” 10M

11” 5M

Multi-bowl Wellhead Systems

MBU-T MBU-LR

Lock-Ring

Landing Ring

Threaded-on Flange

2” LP

3” LP

20” Casing

13-3/8” Casing

9-5/8” Casing 5-1/2” Casing

‘HPS’ Elastomer Secondary Seals

Springs in corners prevent extrusion

Large ID interference provides sealing on rough casing

Interference fit provides pressure energized seal. No plastic packing required.

Type ‘P’ Elastomer Seal

Metal retainer rings prevent extrusion

Seal energized against casing with plastic packing injection

‘Dovetail’ Elastomer Seals

Dovetail shape locks seal into groove

Wide seal surface provides improved sealing

Tapered edges help prevent extrusion

Commonly used as test plug and large O.D. seals

Type ‘S’ Elastomer Seal

Metal springs in corners to prevent extrusion

OD bump provides interference fit allowing seal to be pressure energized

Lockscrews

Integral Lockscrew Threaded Lockscrew

API Ring Gaskets

R Gasket 5,000 PSI

RX Gasket 5,000 PSI

BX Gasket 10,000-15,000 PSI

Frac Valve Comparison

• Two Seat Seal Rings • An Inner and Outer

Seal Ring That are Both Lip Sealed and Pressure and Spring Energized

DS-BSFC 7-1/16” 10M Valve CW FL-R 7-1/16” 10M Valve

Frac Valves

Detail of Seat with Seals

7-1/16” 10M

Detail of Seat with Seals

Potential Leaks • Bonnet/Body • Stem • Body Fittings

Wellhead/Christms Tree Safety

Wellhead/Christmas Tree Safety “Line of Fire”

• Test or injection fittings

• Lockscrews

Wellhead/Christmas Tree Safety Hidden Pressure

Wellhead/Christmas Tree Safety

One-Piece for lower pressures

Two-Piece for higher pressures

Wellhead/Christmas Tree Safety Back Pressure Valves

Wellhead/Christmas Tree Safety Body Fitting

API Flange Bolting • Flanges under pressure see a separation force equal to

the pressure times the area inside the ring gasket. F = P x A • This separation force is contained by the flange bolting.

Thus, larger flanges and higher pressure flanges have larger bolts and/or more bolts.

• As the bolt diameter increases the amount of make up torque goes up.

• API 6A publishes recommended make-up torques for API bolting.

f = 0.07 Xylan Coated f = 0.13 Standard Lubricant

Casing Effects During Frac

Initial Hanging Weight

Cold frac fluid causes casing to contract increasing load on slip

Pressure causes casing to balloon increasing load on slip

Top of cement

Suspension point in wellhead

Specification for Wellhead and Christmas Tree Equipment

• API Specification 6A • Twentieth Edition, October 2010

• ISO 10423:2009 (Modified), Petroleum and Natural Gas Industries- Drilling and Production

Equipment- Wellhead and Christmas Tree Equipment

API 6A Basic Contents 435 Pages

• Design and performance • Materials • Welding • Quality control • Equipment marking • Storing and shipping • Equipment specific requirements • Repair and remanufacture • Various Annexes covering purchasing guidelines, design,

testing, etc.

API 6A Product Specification What does it mean?

6A-U-EE-1.5-1-1

API Spec 6A Temperature

Class Material Class

PSL – Product Specification Level

PR – Performance Requirement

Temperature Class • Determined by the maximum flowing temperature in the wellhead or the mud circulating temperature and the minimum seasonal external temperature.

• API Designations o K ………… -750F to 1800F o L ………… -500F to 1800F o N ……….. -500F to 1400F o P ………… -200F to 1800F o S ………… 00F to 1400F o T ………… 00F to 1800F o U ………… 00F to 2500F o V ………… 350F to 2500F o X ………… 00F to 3500F* o Y ………… 00F to 6500F*

* Non-standard Ratings

Material Class 0 to < 0.05

psia 0.05 to 0.5

psia > 0.5 to 1.5

psia > 1.5 psia

0 to < 7 psia

AA Non-sour

Non-corrosive

EE-0.5 or DD-0.5 Sour

Non-corrosive

EE-1.5 or DD-1.5 Sour

Non-corrosive

EE-NL or DD-NL Sour

Non-corrosive

7 to 30 psia

BB Non-sour

Slightly Corrosive

EE-0.5 Sour

Slightly Corrosive

EE-1.5 Sour

Slightly Corrosive

EE-NL Sour

Slightly Corrosive

> 30 to < 200 psia

CC Non-sour

Moderate to Highly Corrosive

FF-0.5 Sour

Moderate to Highly Corrosive

FF-1.5 Sour

Moderate to Highly Corrosive

FF-NL Sour

Moderate to Highly Corrosive

> 200 psia

CC or HH Non-sour

Highly Corrosive

FF-0.5 or HH-0.5 Sour

Highly Corrosive

FF-1.5 or HH-1.5 Sour

Highly Corrosive

FF-NL or HH-NL Sour

Highly Corrosive

H2S Partial Pressure

CO

2 Par

tial P

ress

ure

Product Specification Level (PSL) • PSL 1, PSL2, PSL3, PSL3G, PSL4 • Quality control requirements such as material certifications, NDE, etc. that increase with the severity of service.

• API 6A Annex A provides purchasing guidelines for selecting the proper PSL of Primary Equipment oTubing Heads oTubing Hangers oTubing Head Adapters oLower Master Valves

Performance Requirement (PR) • Cycle testing of the designs • Cycles may include pressure, loads, open-close, etc.

depending on product being tested • PR1 is minimum API cycle requirements found in the

equipment section of the Specification 6A • PR2 adds additional cycles

Standard Materials for API 6A Materials Classification

Material Class Body, End and Outlet Connections

Mandrel Hangers Bull Plugs, Valve Removal Plugs and Back-Pressure

Valves 2K, 5K, 10K 15K

AA 4130 60K (CMS-102)

4130 75K (CMS-103)

4140 110K (CMS-106)

BB 4130 60K (CMS-102)

4130 75K (CMS-103)

17-4 PH (CMS-303)

CC 410SS (CMS-301)

410SS (CMS-301)

17-4 PH (CMS-303)

DD 4130 60K (CMS-102)

4130 75K (CMS-103)

4130 80K (CMS-104)

Or 4140 80K

(CMS-105)

4130 60K (CMS-102)

EE-XX 4130 60K (CMS-102)

4130 75K (CMS-103)

FF-XX 410SS (CMS-301)

410SS (CMS-301)

17-4 PH (CMS-303)

Or Inconel 718 (CMS-304)

HH-XX ------ ------ Inconel 718 (CMS-304)

Product Plan - Quality Control Requirements for Wellhead Bodies and Assemblies

The following chart details the Quality Control Requirements for all bodies. Applies to Casing and Tubing Heads, Cross-Over Connectors, Tubing Head Adapters, Top Connectors Tees and Crosses, Adapter and Spacer Spools, Casing and Tubing Hangers, Flanged Connectors Threaded Connectors, Other End Connectors.

Parameter PSL 1 PSL2 PSL3 Comments

Tensile Testing CMS-002 and Material Spec

CMS-002 and Material Spec

CMS-002 and Material Spec Compare MTR to Material Spec

Impact Testing CMS-004 CMS-004 CMS-004 Section 8.0 & EPS

Compare MTR to Material Spec

Chemical Testing CMS-002 and Material Spec

CMS-002 and Material Spec

CMS-002 and Material Spec Compare MTR to Material Spec

Hardness Testing CIR-002 CIR-002 CIR-002 Process Router & EPS

Dimensional CIR-001 CIR-001 CIR-001 Process Router & EPS

Thread Gauging CIR-004 or

TTM-WI-7.5.1

CIR-004 or

TTM-WI-7.5.1

CIR-004 or

TTM-WI-7.5.1 End and Outlet Connection Threads Gauge 100%

Traceability Heat Traceable Heat Traceable Heat Traceable & Heat Lot

PSL-1/2-Trace by heat numbers PSL-3-Trace by serial numbers

Visual Exam CIR-003 CIR-003 ---

Surface NDE --- CNT-002 or

CNT-004

CNT-002 or

CNT-004 Process Router & EPS

Volumetric NDE --- --- CNT-005 Prior to Machining

Weld NDE --- CNT-008 CNT-008 Process Router & EPS, if applicable

Marking MD Drawing MD Drawing MD Drawing Process Router & EPS

Serialization --- --- Each component Work Order-sequential number

Hydrostatic Test CTS-001 CTS-001 CTS-001 PSL-3 – Chart Recorder Required

Assembly Traceability CTS-001 CTS-001 CTS-001

PSL-1/2- Record heat number of body

PSL 3- Record heat and serial number

Set Out Reports

Assembly Serialization --- Work Order-sequential number

Work Order-sequential number Process Router

API Monogram TTM-MSP-A-1 TTM-MSP-A-1 TTM-MSP-A-1 Process Router & EPS

Impact Testing

Temperature

Minimum Average Impact Value Transverse Direction - Ft-Lb (J)

Classification Test PSL 1 PSL 2 PSL 3

K -75 (-60) 15 (20) 15 (20) 15 (20)

L and N* -50 (-46) 15 (20) 15 (20) 15 (20)

P -20 (-29) -- 15 (20) 15 (20)

S 0 (-18) -- -- 15 (20)

T 0 (-18) -- -- 15 (20)

U 0 (-18) -- -- 15 (20)

V 0 (-18) -- -- 15 (20)

Cactus Record Requirements Bodies, End and Outlet Connections, Mandrel Tubing Hanger and Casing

Hanger PSL-1 PSL-2 PSL-3*

Material Test Reports: Chemical analysis, tensile test, impact test (if required) and hardness test

X X X

Weld Process Records: WPS, WPQR and WQR X X X

Welding Process Records: Welder identification, weld procedures, filler material type, post-weld heat treatments

X

NDE personnel Qualification Records for Weld Metal Corrosion Overlay on Bodies X X X

Hardness Test X X Actual Hardness

Dimensional Inspection X NDE Records: Surface NDE, Weld Volumetric NDE, and Repair Weld NDE X X

Volumetric NDE X Heat Treatment COC X X

Non-Metallic Seals PSL-1 PSL-2 PSL-3

Batch Traceability, Cure date certification, Shelf-life expiration date certification X

Bullplugs, Valve-Removal Plugs and Back-Pressure Valves

Material Test Reports : Chemical analysis, tensile test, impact test, and hardness test

Assembled Equipment Records PSL-1 PSL-2 PSL-3*

Pressure Test Records: Actual test pressure, holding period duration X X

Pressure Test Records: Hydrostatic Test Chart X

Assembly Traceability Record X

*All required records for PSL3 components & assemblies shall reference the specific part serial number.

Records to be Furnished to Customer Bodies, End and Outlet Connections, Mandrel Tubing Hanger and Casing

Hanger PSL-1 PSL-2 PSL-3*

No records are required -- -- --

Non-Metallic Seals PSL-1 PSL-2 PSL-3

No records are required -- -- --

Assembled Equipment Records PSL-1 PSL-2 PSL-3*

Certificate of Compliance – stating that equipment conforms to PSL 3 of API Spec 6A and the temperature and material class

-- -- X

Pressure Test Records: Actual test pressure, holding period duration -- -- X

Pressure Test Records: Hydrostatic Test Chart

-- -- X

Assembly Traceability Record -- -- X