Download SMITH Tubulars & Tubular Services.pdf PDF

TitleSMITH Tubulars & Tubular Services.pdf
TagsPipe (Fluid Conveyance) Drilling Rig Drill Welding Mechanical Engineering
File Size1.2 MB
Total Pages14
Document Text Contents
Page 2

Rotary Kelly 1

Mudsaver Valve 2

Drill Pipe 3-5

TSDS High Torque Connection 6

Engineered for Strength: TSDS Tool Joint Connection Data 7-11

Hevi-Wate™ Drill Pipe - Standard and Spiral 12-13
Drill Collars-Standard and Spiral 14-15

Rotary, Bit Sub and Lift Sub 16

Top Drive Sub and Thread Protectors 17

Ezy-Torque™ Hydraulic Cathead 18
Tru-Torque® Automatic Torque Control System 19

Machine Shop Services 20-23

Inspection Services 24

Portable Hardbanding Service 25



Rotary Kelly
Most of the world’s drilling rigs rely
on this important piece of equipment
to transmit the torsional energy from
the rotary table to the drillstring and
ultimately to the bottom of the hole.
The kelly’s ability to perform this func-
tion over a prolonged period of time is
a result of the mechanical properties
of the steel and the specifications to
which it is manufactured.

Each Smith Services kelly is heat
treated along its entire length for uni-
form toughness and durability. A hard-
ness range of 285 to 341 BHN, and a
Charpy V-notch impact value of 40 ft-
lb are guaranteed one inch below the
surface at room temperature. Each
kelly meets the mechanical properties
listed in API Spec 7 and when appli-
cable, can be stamped with the API

The Rotary Kelly is manufactured
with one of two basic configurations
– square or hexagonal, and is avail-
able in three standard lengths:

40 feet (12.2m) overall length with a •
37 foot (11.3m) working space
46 feet (14.0m) overall length with a •
43 foot (13.1m) working space
54 feet (16.5m) overall length with a •
51 foot (15.5m) working space

Other sizes are available through special order.

Machined flats and upsets ensure •
tight tolerances and a high-quality
drive section. This will retard wear
on the kelly itself in addition to
prolong the service life of the kelly
drive bushing rollers

* Not an API standard
Ordering instructions, please specify:

Hexagonal or square kelly•
Nominal size•
Length (A)•
Bore ID (E)•
Size and type of top connection•
Size and type of bottom connection•
Top upset OD (C)•
Bottom upset OD (D)•
Type of shipping scabbard. (Rathole drilling scab-•
bards are available upon request)





3 ft.









with right-


Top upset
with left-


3 ft.










Top Upset Bottom Upset


Drive Section
Wt. of
40 ft.

LengthAPI Box


(C) Right-hand






(in.) (ft.) (in.) (in.) (in.) (in.) (in.) (lb.)

3 ¹⁄₂ 40, 46
6 ⁵⁄₈ REG. 7 ³⁄₄

NC 31 (2 ⁷⁄₈ IF) 4 ¹⁄₈ 2* 3.937 3 ¹⁄₂

4 ¹⁄₂ REG. 5 ³⁄₄ 1,200

4 ¹⁄₄ 40, 46 6 ⁵⁄₈ REG. 7 ³⁄₄ NC 38 (3 ¹⁄₂ IF) 4 ³⁄₄ 2 ¹⁄₄ 4.781 4 ¹⁄₄ 1,740

5 ¹⁄₄ 40, 46, 54 6 ⁵⁄₈ REG. 7 ³⁄₄
NC 46 (4 IF) 6 - 6 ³⁄₈ 2 ¹³⁄₁₆

5.900 5 ¹⁄₄ 2,550
NC 50 (4 ¹⁄₂ IF) 6 ¹⁄₈ - 6 ³⁄₈ 3




Top Upset Bottom Upset


Drive Section
Wt. of
40 ft.



(C) Right-hand







(in.) (ft.) (in.) (in.) (in.) (in.) (in.) (lb.)

3 40, 46
6 ⁵⁄₈ REG. 7 ³⁄₄

NC 31 (2 ⁷⁄₈ IF) 4 ¹⁄₈ 2* 3.875 3

4 ¹⁄₂ REG. 5 ³⁄₄ 980

3 ¹⁄₂ 40, 46
6 ⁵⁄₈ REG. 7 ³⁄₄

NC 38 (3 ¹⁄₂ IF) 4 ³⁄₄ 2 ¹⁄₄ 4.437 3 ¹⁄₂ 1,320
4 ¹⁄₂ REG. 5 ³⁄₄

4 ¹⁄₄ 40, 46, 54 6 ⁵⁄₈ REG. 7 ³⁄₄
NC 46 (4 IF) 6 - 6 ³⁄₈

2 ¹³⁄₁₆ 5.500 4 ¹⁄₄ 1,820
NC 50 (4 ¹⁄₂ IF) 6 ¹⁄₈ - 6 ³⁄₈

Page 7


Connection Size & Style



Make-Up Torque

Torsional Yield

Tensile Yield




3 ¼ 59,200 98,673 1,778,200

3 ½ 55,920 93,207 1,619,200

3 ¾ 52,300 87,168 1,448,400

4 43,990 73,319 1,265,800

7 1�8

3 ¼ 63,890 106,485 1,778,200

3 ½ 60,610 101,019 1,619,200

3 ¾ 53,070 88,455 1,448,400

4 43,990 73,319 1,265,800

7 ¼

3 ¼ 68,700 114,500 1,778,200

3 ½ 61,510 102,525 1,619,200

3 ¾ 53,070 88,455 1,448,400

4 43,990 73,319 1,265,800

TSDS Tool Joint Connection Data (continued)


TSDS connection data for common tool joint sizes is shown in these tables. Contact Smith Services for data on sizes not listed. Torsional yield values shown in yellow type
indicate the connection is box weak in torsion. Torsional values are based on using a thread compound with a 1.0 API friction factor. Pin tensile yield values are based on tensile
loading conditions only, and do not take into consideration the effect of combined torsional and tensile loading.

Connection Size & Style



Make-Up Torque

Torsional Yield

Tensile Yield




4 ¼ 82,450 137,423 2,102,200

4 ‰ 77,330 128,889 1,896,100

4 ¾ 70,360 117,272 1,678,100

5 57,050 95,088 1,448,400

8 1�8

4 ¼ 88,590 147,654 2,102,200

4 ‰ 82,930 138,222 1,896,100

4 ¾ 70,360 117,272 1,678,100

5 57,050 95,088 1,448,400

8 ¼

4 ¼ 94,760 157,935 2,102,200

4 ‰ 82,930 138,222 1,896,100

4 ¾ 70,360 117,272 1,678,100

5 57,050 95,088 1,448,400

TSDS Tool Joint Connection Data (continued)

Page 8


Hevi-Wate™ Drill Pipe - Standard and Spiral
Hevi-Wate Drill Pipe is the industry
standard for an intermediate-weight
drill stem member, and is available in
standard, spiraled and non-magnetic
designs, making it useful in a number
of applications. It has drill pipe dimen-
sions for easier handling. Hevi-Wate
Drill Pipe utilizes a unique center upset
or wear pad to increase tube life while
reducing hole drag and differential
sticking problems.

Features and Benefits
Long tool joints provide ample
space to recut the connections, re-
duce the wear rate on the OD and
extend the service life
The center upset protects the tube
from OD wear by keeping the tube
away from the hole wall, while at
the same time reducing the risk of
differential sticking
The API Bore Back Box feature is
standard for the box connection
on 4 inch Hevi-Wate Drill Pipe and
larger, helping to extend the ser-
vice life of the connection
Cold rolling the thread roots on all
Hevi-Wate Drill Pipe connections
increases the connection’s ability
to resist fatigue cracking
Hevi-Wate Drill Pipe can be picked
up with the drill pipe elevators for

Optional Features
Hardbanding placed on the tool
joints and center wear pad will in-
crease abrasion resistance and ex-
tend service life
The API Stress-relief Groove fea-
ture on the pin connection for sizes
4 inches and larger

Directional Drilling:

An effective weight-on-bit member
in extended reach, horizontal and
conventional directional well de-
Improves directional control by re-
ducing torque and drag
The center upset helps reduce the
risk of differential sticking

Vertical Drilling:
Use as an active weight-on-bit
member in place of a portion of
the drill collar string to reduce
torque and shorten trip time
Hevi-Wate Drill Pipe can be used to
provide a portion of the anticipated
drilling weight when using soft for-
mation PDC rock bits

Note: Hevi-Wate Drill Pipe should not be used as bit
weight in vertical holes larger than those listed in the
table below.

Transition Zone:
18 to 21 joints of Hevi-Wate Drill
Pipe run above the drill collars will
reduce the risk of drill pipe fatigue

Hevi-Wate Drill Pipe vs. Maximum Hole Size
(when used as bit weight in vertical hole)

Hevi-Wate size (in.) 3 1⁄2 4 4 1⁄2 5 5 1⁄2 6 5⁄8

Max. hole size (in.) 7 8 1⁄8 9 1⁄16 10 1⁄16 11 13 1⁄2


Drill Pipe

Drill Pipe

Hevi-Wate™ Drill Pipe - Standard and Spiral
Tapered Drillstrings

Hevi-Wate Drill Pipe should be
used in the crossover area of
the drill stem when the bending
strength ratio (ratio of I/C or sec-
tion modulus) between the drill
collars and the drill pipe exceeds
5.5. Hevi-Wate Drill Pipe will pro-
vide a gradual transition in stiff-
ness between the drill collars
and drill pipe, reducing fatigue
damage to the drill pipe. Refer to
table “Bending Strength Ratios”
for maximum drill collar size to
be run directly below Hevi-Wate
Drill Pipe. Also refer to the “Drill-
ing Assembly Handbook” for ad-
ditional information

Remedial Operations
Hevi-Wate Drill Pipe is used to
provide the weight required in
milling, underreaming or hole
opening operations

Jar Placement
Hevi-Wate Drill Pipe is well suited
for jar placement. Utilize a suf-

the jar to ensure that the jar is
not in the transition zone, and 20
percent of the recommended jar
overpull as hammer weight above
the jar in areas where differen-
tial sticking is a problem. See a
Smith Services representative for
additional information and place-
ment recommendations

Hydraulic Improvements
Hevi-Wate Drill Pipe can be used
to reduce drillstring pressure
losses when used to replace part
of the drill collar string. This can
be effective in the 6 inch to 8 ¾

inch hole size range where drill
collar bore size is relatively small

Standard Hardband
A variety of abrasion resistant
materials are available for appli-
cation. Contact a Smith Services
representative for more informa-
Pin – 5 inches of hardmetal ap-

Box – 4 inches of hardmetal ap-

on the taper
Center upset – two 3-inch bands
applied to the OD

See Machine Shop section for Hevi-Wate Drill Pipe hard-
band details.

*Indicates the largest size drill collar to be run directly
below the Hevi-Wate Drill Pipe. If drill collars larger than
the maximum size shown are to be used, run at least
three collars of the maximum size shown between the
large drill collar and the Hevi-Wate Drill Pipe.

Hevi-Wate Drill Pipe Dimensions - Standard and Spiral


Mechanical Properties

Tube Section
Tool Joint


Nom. Tube
Dimensions Center





Yield Conn. Size

and Type
OD ID TensileYield




Thickness Area

(in.) (in.) (in.) (sq. in.) (in.) (in.) (lb.) (ft-lb) (in.) (in.) (lb.) (ft-lb) (ft-lb) (in.) (ft.)

3 1⁄2 2 ¹⁄₄ 0.625 5.645 4 3 ⁵⁄₈ 310,475 18,460 NC 38 (3 ¹⁄₂ IF) 4 ³⁄₄ 2 ³⁄₈ 675,045 17,575 10,000 30 / 27 31

4 2 ⁹⁄₁₆ 0.719 7.410 4 ¹⁄₂ 4 ¹⁄₈ 407,550 27,635 NC 40 (4 FH) 5 ¹⁄₄ 2 ¹¹⁄₁₆ 711,475 23,525 13,300 30 / 27 31

4 1⁄2 2 ³⁄₄ 0.875 9.965 5 4 ⁵⁄₈ 548,075 40,715 NC 46 (4 IF) 6 ¹⁄₄ 2 ⁷⁄₈ 1,024,500 38,800 21,800 30 / 27 31

5 3 1.000 12.566 5 ¹⁄₂ 5 ¹⁄₈ 691,185 56,495 NC 50 (4 ¹⁄₂ IF) 6 ⁵⁄₈ 3 1⁄16 1,266,000 51,375 29,200 30 / 27 31

5 1⁄2 3 ³⁄₈ 1.063 14.812 6 5 ⁵⁄₈ 814,660 74,140 5 ¹⁄₂ FH 7 3 ¹⁄₂ 1,349,365 53,080 32,800 30 / 27 31

6 5⁄8 4 ¹⁄₂ 1.063 18.567 7 ¹⁄₈ 6 ³⁄₄ 1,021,185 118,845 6 ⁵⁄₈ FH 8 4 ⁵⁄₈ 1,490,495 73,215 45,800 30 / 27 31

Bending Strength Ratios

Drill Pipe


Max. Drill Collar
Size* Bending Strength


(in.) (in.)

3 1⁄2 5 3⁄4 x 2 1⁄4 18.2 / 3.5 = 5.2:1

4 6 1⁄2 x 2 1⁄4 26.5 / 5.2 = 5.1:1

4 1⁄2 7 1⁄2 x 2 13⁄16 36.5 / 7.7 = 4.7:1

5 8 1⁄4 x 2 13⁄16 54.3 / 10.7 = 5.1:1

5 1⁄2 9 x 2 13⁄16 70.8 / 14 = 5.1:1

6 5⁄8 10 1⁄2 x 3 113 / 22.4 = 5.0:1

Hevi-Wate Drill Pipe Weight and Center Upset Dimensions

Nom. Size

Spiral Hevi-Wate Drill Pipe Standard Hevi-Wate Drill Pipe

Wt. (Approx.) Incl. Tube
& Joints (lbs.)


Length (ft.)

Wt. (Approx.) Incl. Tube
& Joints (lbs.)


Length (in.)lb/ft lb/Jt 31 ft lb/ft lb/Jt 31 ft

3 1⁄2 27.5 849 18.5 23.4 721 24

4 34.3 1,057 18.5 29.9 920 24

4 1⁄2 46.5 1,431 18.5 41.1 1,265 24

5 55.4 1,706 18.5 50.1 1,543 24

5 1⁄2 63.8 1,962 18.5 57.6 1,770 24

6 5⁄8 77.7 2,389 18.5 71.3 2,193 24

Page 13


Rotary Kelly Repair
The Rotary Kelly is the drive link be-
tween the surface power of the rig
and the drill bit. When kelly wear be-
comes appreciable, it can usually be
repaired at selected Smith Services

The following conditions can be re-
paired at most service centers.

Connection Damage: The upsets •
on each end of the kelly are man-
ufactured with sufficient length to
allow the connections to be recut
a number of times
Crooked: In most cases a bent •
kelly can be straightened using a
hydraulic straightener. The kelly
should be closely inspected for
indications of fatigue damage
prior to straightening and subse-
quent return to service
Rounded Drive Corners: This •
condition can be repaired in one
of two ways. The first and easi-
est method to accomplish this is
to reverse the ends. This process
enables the unworn side of the
corners to be placed into service.
The second method is to re-ma-
chine the drive flats to a smaller
non-API size. This process may
require special milling equipment
not available in most field service
centers. It should be noted that
when this procedure is selected,
special rollers must be purchased
for use with the modified kelly.
The re-machined kelly has a re-
duced load capacity.

Kelly life can be extended significant-
ly by implementing the following rec-

Always use a saver sub to reduce •
thread wear and damage on the
lower connection
Always use a scabbard when •
transporting a kelly
Lubricate the drive surfaces of the •
kelly to permit it to slide freely
through the drive bushing
Inspect frequently for indications •
of fatigue damage and stay alert
to changing wear patterns on the
kelly flats

Smith Services is known around
the world for the quality appli-
cation of hardband for OD wear
protection on drill collars, drill
pipe, heavy wall drill pipe and
other tools used in drilling ap-
plications. An automatic, metal-
arc, inert gas shielded, consum-
able electrode process is used
with closely controlled preheat
and postheat. When hardband is
replaced, it is necessary to re-
move the existing material prior
to the application of the new

Conventional hardband mate-
rial consists of granular tungsten
carbide fed automatically into
the molten puddle to obtain uni-
form distribution of the tungsten
carbide particles. A selection of
casing friendly, non-tungsten
carbide hardband from industry-
approved suppliers is also avail-
able through Smith Services. The
standard application is flush to
1⁄32 inch (unless otherwise speci-
fied) above the OD of the drill
collar or tool joint.

Hevi-Wate™ Drill Pipe: Hardbanding
is recommended for the pin and box
tool joints, as well as the center upset
wear pad section. The standard appli-
cation consists of: 5 inches of hard-
facing placed flush with the OD on the
pin tool joint, 5 inches of hardfacing
placed flush with the box tool joint OD
(4 inches on the tool joint OD and 1
inch on the taper) plus fingers applied
to the tapered section of the box tool
joint to prevent fluid undercutting.

The center upset wear pad section is
provided with two 3-inch long bands
applied to the OD to prevent wear to
the center of the tube. Spiral Hevi-
Wate drill pipe will require tool joint
hardbanding only.

Drill Collars: There are three stan-
dard options for applying hardband
to drill collars; Type A, Type B and
Type C as indicated in the Drill Collar
Hardbanding Options reference on
page 27. Variations of these options
are available upon request. Please
consult with a Smith Services repre-
sentative for more information.

Note: Drill collars smaller than 4 3⁄4" OD cannot be
hardbanded due to thin walls.

Machine Shop Services


Standard Spiraled




1" 1"



Straightening Services
Smith Services understands the im-
portance of straight drill stem com-
ponents. Bent tubular products
and drilling tools can cause prema-
ture wear and subsequent failure
of BOP equipment, drillstring and
BHA members.

A certified Smith Services inspector
will automatically check for straight-
ness during the standard inspection
process. The most common causes of
bent drill pipe are improper make-up
and breakout procedures, dropping
the drillstring and mishandling dur-
ing transportation.

Drill pipe, drill collars, Hevi-Wate™
Drill Pipe and rotary kellys can be
straightened at most Smith Services

Make-up and Breakout Services help
improve rig economics by allowing
drill pipe to be shipped in preas-
sembled double lengths, reducing rig
time spent on making up or break-
ing connections. In addition to make-
up and breakout of drill pipe, Smith
Services qualified operators use cali-
brated equipment to break in rotary
shouldered connections. Breaking-
in these connections in a controlled
environment ensures reliable on-site

Other Machine Shop Services
There are a number of other valuable
services offered by Smith Services
that include the following:

Spiraling of drill collars•
Turning drill collar OD •

Manufacture and repair of cross-•
over subs, pup joints and saver
Downhole tool repair•
Stabilizer redress and repair•
Custom repairs•

Smith Services has offices and ser-
vice centers located in most of the
major oilfields in the world offering
consistent, high quality drill stem
service and repair. These facilities
perform work to API specifications,
when applicable, and Smith Services

Machine Shop Services

Fourchon Facility

Tool illustration is not to scale.

Drill Collar Hardbanding Options

Type A
Pin End

Type B
Box End with Zip Lift

(Elevator and Slip Recess)

Type C
(Slip Recess Only)










Page 14


Smith Services portable hardbanding
units offer our customers the ultimate
in cost effective maintenance for their
drillstring. With today’s high cost of
tubulars, having the ability to keep
them in top shape without incurring
the additional cost of shipping back
and forth to a service center means
a more efficient utilization of your tu-
bular inventory and a higher return
on your drillstring investment.

The Smith Services portable
hardbanding service provides:

Onsite application•
State-of –the-art portable equip-•

Fully trained & qualified person-•
Drill pipe, drill collar & Hevi-•
Wate™ applications
Superior abrasion & wear protec-•
Standard tungsten carbide & pre-•
mium hardbanding materials

Smith Services Portable Hardband-
ing extends the useful life of drilling
tubulars and is available from our 24
hour Service Centers worldwide.

Portable Hardbanding Service

Harbanding Application


Inspection Services
Service centers are equipped with the
latest nondestructive testing (NDT)
equipment and offer a full range of
inspection that includes a variety of
third party standards. Smith Services
inspectors are ASNT Level II certified
in both the principles and techniques
of oilfield inspection. Extensive train-
ing combined with good old fashioned
experience means that when a tool is
inspected and marked with the “OK
DRILCO” stencil, it is certified ready
for service.

Inspection capabilities include:
API - RP7G, Spec 7, RP 5A5, 5CT•
Third party standards•
Customer defined standards•

Field Inspection
Periodic inspection of drill pipe, drill
collars, subs and drilling tools con-
ducted at the drilling rig by a certified
Smith Services inspector is the first
important step in preventing down-
hole failures. The mobile inspection
units are completely self-contained,
housing all the equipment, consum-
able products and accessories nec-
essary to provide complete service.
Equipment can also be packaged for
air transportation to remote or off-
shore locations.

The inspector uses several NDT
methods to check the high stress
areas such as connections, slip ar-
eas, upset areas, weld areas, radius
changes and tubes to detect cracks
and indications.

Once the areas to be inspected are
thoroughly cleaned, any of the follow-

ing inspections can be conducted de-
pending on customer specifications:

Complete thread inspection•
Dimensional inspection•
Visual inspection (VT)•
Magnetic particle (MT)•
Liquid dye penetrant (PT)•
Ultrasonic inspection of rotary •
shouldered connections (UT)
Ultrasonic inspection of high •
stress areas and tube upsets
Electromagnetic dual function tu-•
bular inspections (ET)

Field repair of minor cracks, thread
and shoulder blemishes can be com-
pleted by the Smith Services inspec-
tor while on location. These problems,
if not repaired, will cause damage to
other connections in the drillstring,
and necessitate the expense of truck-
ing equipment to a machine shop for

Electromagnetic Inspection
This system consists of a laptop
computer, electronics package,
data acquisition board and propri-
etary signal processing software.

Dual function with 16 channels •
of information
Data can be viewed on most •
Data can be delivered to the •
customer electronically
Fast and accurate calibration•
Fast inspection and reliable re-•
Easy to interpret display•
Indications can be easily located •
and investigated
Completely computer controlled•
Highly transportable•

Overall, the new state-of-the-art drill
pipe inspection system and its ease
of use allows for increased inspec-
tion production, greater operator ef-
ficiency and reduced overall operat-
ing costs.

When your drill stem products arrive
at a Smith Services facility, they will
receive thorough inspection by certi-
fied personnel. The following in-shop
inspection services are available:

Complete thread inspection•
Dimensional inspection•
Visual inspection (VT)•
Magnetic particle (MT) •
Liquid dye penetrant (PT)•
Ultrasonic inspection of rotary •
shouldered connections (UT)
Ultrasonic inspection of high-•
stress areas and tube upsets
Full length ultrasonic inspection*•
Full length dual function electro-•
magnetic inspection (EMI)

Once inspected, tubular products and
downhole tools can be fully repaired
at a Smith Services machine shop.
From simple straightening, connec-
tion repair or machining new connec-
tions, your drill stem components will
be returned to drilling-ready condi-

*Only available at the Port Fourchon Super Service

Thread lead measurement

Electromagnetic inspection

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