Shanghai Unite Steel

2013/09/30

High Quality 4140, 4130 Alloy Steel Pipe

We are agent of Hubei Xinyegang Steel Co.,ltd in Shanghai, China.

Xinyegang is a famous special steel company in China.
It serves for National Tube Supply, FORTIS ALLIANCE CO., NOV Grant Prideco,etc.
Its product quality is well accepted by American users.

Our advantage:
1. Higher quality and Relatively lower price.
2. More flexible payment terms.
3. Alloy steel pipe (like 4130, 4140, A106, A53, A335, A333 alloy steel pipeetc.)with large diameter and wall thickness

Email: chuckyan@gaslinepipe.com

Skype:chuck.yan1

www.gaslinepipe.com

2013/07/19

Drill Pipe Casing Pipe and Oil Tubing at Competitive Prices

, , are our specialty. We supply quality drill pipes, standard heavy weight drill pipes, spiral heavy drill pipes, slick drill collars, spiral drill collars, non-magnetic drill collars, seamless oil casing, ERW oil casing, and oil and gas tubing at very competitive prices. All of our , , , meet the industry standards established by the American Petroleum Institute (API). As a global supplier of quality oilfield equipment to the oil and gas industry, we ship our products around the world.

Besides the drill pipes, drill collars, oil casing and tubing, and line pipes, we supply drilling rigs, workover rigs, top drives, drilling equipment, triplex mud pumps, blowout preventers, BOP control systems, solids control equipment, etc. Please visit our company website or download our comprehensive catalog to see our full line of products.

Drill Pipe and Heavy Weight Drill Pipe

Our are in accordance with API Spec 5D and our are in accordance with. We supply full API size range of drill pipe and heavy weight drill pipes from 2-3/8 to 6-5/8 inches. Our heavy weight drill pipes include integral heavy weight drill pipes and welded heavy weight drill pipes. The steel grades of our drill pipes include E75, X95, G105 and S135. In addition, we can add hardbanding and internal coating by request. We also sell various tool joints and drill stem accessories including pup joints, lift subs, crossover subs, and reamers etc.

Drill Collar and Non-Magnetic Drill Collar

Drill collars are made with material AISI 4145H in accordance with API Spec 7-1. We supply slick drill collars and spiral drill collars; their sizes are from 3-1/8 to 11 inches.

Contact Us:

Email: chuckyan@gaslinepipe.com

Skype: chuck.yan1

Tubing, Casing & Drill Pipes Supply

We provide a variety seamless and welded petroleum industry casing, tubing, sucker rods and drill pipes with various end connections. All of our OCTG (Oil Country Tubular Goods) products are manufactured to the API specifications.

Some of the and casing available for your company’s requirements include:

General drill pipes, casing pipes and tubing conforming to API standards for oil field and deep well drilling
API H40 tubing/pipe – general purpose pipes conforming to API specification 5CT
API J55 general purpose pipes for tubing applications, similar to specification K55 with lower minimum tensile strength conforming to API specification 5CT
API K55 general purpose pipes used primarily in casings conforming to API specification 5CT
API L80 tubing/pipes conforming to API specification 5CT with a controlled yield strength with hardness test requirement of 23 HRC maximum; usually used in wells with sour (H2S) environments or deep sour wells
API N80 or N80 Q&T (Quench and Tempered) – general purpose pipe manufactured to API specification 5CT
API Normalized N80 – lower-cost alternative to standard Q&T N80; pipe walls less than 0.500 inch; inspections, testing and dimensions are in accordance with API 5CT for grade N80. Charpy v-notch impact test absorbed energy results conform to API SR16 and are lower Q&T N80
API C90 – an API controlled yield strength grade (25.4 HRC maximum) generally used in sour condensate wells; with required extensive hardness testing, SSCC testing per NACE Standard TM-0177-Method A; minimum threshold stress required is 80% of specified minimum yield strength
API C955 – same strength range as T95 and U. S. Steel C95, but without a hardness requirement; generally not used in sour wells
API T95 – API controlled yield strength grade (25.4 HRC maximum), the same as API C95 and U. S. Steel C95; generally for use in sour condensate wells; extensive hardness testing is required including SSCC testing per NACE Standard TM-0177-Method A; minimum threshold stress required is 80% of specified minimum yield strength
API P110 – generally used in deep wells; this grade is not suitable for most sour condensate wells
API Q125 – API grade for deep well service, generally not for use in sour condensate wells; quadrant hardness testing is required (no specified hardness limits other than the variation between readings); impact testing required for each heat and/or lot; typically EMI and UT NDT inspections are required

Contact Us:

Email: chuckyan@gaslinepipe.com

Skype: chuck.yan1

2013/07/15

13Cr Steel Casing and Tubing-Corrosion Resistant Alloy (CRA) OCTG Pipe

We provide 13% Chromium grades and Corrosion Resistant Alloys (CRA) for oil and gas operations in highly corrosive environments where carbon pipe cannot be used.

APPLICATION: Deep well environment containing CO2.

INTRODUCTION: In most conditions when the partial pressure of CO2 is above 30psi, carbon steels present high corrosion rates. Steel grades alloyed with high contents of Chromium (Cr), Molybdenum (Mo) and Nickel (Ni) are able to effectively resist corrosion. 13Cr Steel OCTG Pipe made with 13% Chromium (13Cr) are the least expensive corrosion-resistant alloy (CRA) tubulars that can be used to combat C0₂ corrision and H₂S environmental cracking without inhibitor treatment. These stainless steel tubulars cost only half as much as duplex stainless steel and one-fourth to one-tenth as much as high-nickel CRA materials. Using 13Cr Steel OCTG Pipe might also be less expensive and more cost-effective than using carbon/low-alloy steel with inhibition. The 13Cr Steel OCTG Pipes are especially attractive for tubing applications in offshore production operations where working space is limited and workover costs are high. Tubulars made with 13% Cr have been widely used in North America, the North Sea, Gulf of Mexico and North Slope of Alaska.
13Cr steel is susceptible to corrosion at high temperature, to sulfidestress cracking (SSC) in moderate to high H₂S environments and to crevice corrosion. Therefore, application of 13Cr Steel OCTG Pipe does require precautions in tubular design, procurement, handling, storage, and field operations.

METALLURGY: The 13Cr steel and its equivalents are martensitic stainless steels that contain 11.5-14.0 percent chromium.

STANDARDS:

· API 5CT latest edition at time of manufacture (PSL-1, PSL-2, PSL, 3)

· API-5CRA Corrosion Resistant Alloy Seamless Tubes for Use as Casing, Tubing and Coupling Stock

· API-5B Threading, Gaging and Thread Inspection of Casing, Tubing and Line Pipe Threads ISO 11960:2004, Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells

· ISO 13680-2000 Petroleum and natural gas industries-Corrosion-resistant alloy seamless tubes for use as casing,tubing and coupling stock-Technical delivery conditions

· DEP 39.01.20.10-Gen L80 13%Cr casing and tubing (amendments/supplements to ISO/DIS 11960.2)

· DEP 39.01.20.30-Gen Corrosion-resistant alloy seamless tubes for use as casing, tubing and coupling stock – technical delivery conditions (endorsement of ISO 13680)

· DEP 39.01.20.31-Gen Care and use of casing and tubing (endorsement of ISO 10405)

· GOST 632-80 Specification of Casing Pipe and Couplings form THEM

· PDVSA EM-18-00-05 Requirements for Casing and Tubing

13Cr SERIES:

· L80-13Cr

· C95-SP13Cr1

· C95-SP13Cr2

· P110-SP13Cr1

· P110-SP13Cr2

CONNECTIONS:

· STC (short round thread casing)

· LTC (long round thread casing)

· BTC (buttress thread casing)

· XL (extreme-line casing)

· NUE (non-upset tubing)

· EUE (external upset tubing)

· IJ (integral joint tubing)

· Premium Connections

And almost any premium & gas tight connection.

LENGTH: Range 1, Range 2 & Range 3

PROTECTION:

· External bare and uncoated or externally coated with black/ transparent anti rust Mill varnish Plastic or Metal Pin and Box Protectors.

· Internal plastic coating or sleeves.

MILL TEST CERTIFICATE: Issued in accordance with API Specification 5CT Eighth Edition. Additional Third Party Inspection can also be performed on request.

Contact Us:

Email: chuckyan@gaslinepipe.com

Skype: chuck.yan1

Web: www.gaslinepipe.com

2013/06/26

OCTG - Well Casing for Oil Wells

Well casing is an integral part of the oil drilling and completion process.

In general, casing provides structure and strength to the walls of the well hole so that it doesn’t collapse on itself. It also ensures that there is no seepage of oil or natural gas out of the well hole as these are brought to the surface.

There are five different types of well casing. They include:

Conductor Casing
Surface Casing
Intermediate Casing
Liner String
Production Casing

Careful planning is required so that the proper casing for each well is installed. Subsurface characteristics, the diameter of the well, and the pressures and temperatures experienced throughout the well, are all taken into account when planning the various casing strings.

Below is a list of standard API5CT specifications, all of which we supply.

We are also able to supply casing with non-API specifications for special situations, including those with semi-premium and premium connections.

Essentially, we are able to accommodate all your tubular requirements, many times with ready stock.

Please contact us to discuss your requirements.

High Quality Drill Pipe

Application:Heavy weight drill pipe (HWDP) is usually run in between the drill collars and the drill pipe in order to prevent fatigue of the drill pipe in the vertical drilling industry. Heavy weight drill pipe is also utilized in the horizontal directional drilling (HDD) industry for added strength in high stress situations. Heavy weight drill pipe (HWDP) may be used to make the transition between the drill collars and drill pipe. The function of the HWDP is to provide a flexible transition between the drill collars and the drill pipe.

Introduction:

Heavy weight drill pipe has a “center upset”, also known as wear pad, that increases tube life by protecting the tube from wearing on the outer diameter by keeping the tube away from the hole wall. It also reduces hole drag and differential sticking problems. The walls of heavy weight drill pipe are thicker and have longer upsets compared to conventional drill pipe, as well as being stronger with high tensile strength.

Application:

Heavy weight drill pipe (HWDP) is usually run in between the drill collars and the drill pipe in order to prevent fatigue of the drill pipe in the vertical drilling industry. Heavy weight drill pipe is also utilized in the horizontal directional drilling (HDD) industry for added strength in high stress situations. Heavy weight drill pipe (HWDP) may be used to make the transition between the drill collars and drill pipe. The function of the HWDP is to provide a flexible transition between the drill collars and the drill pipe.

Quality Standard: API 7 and API 5DP

Steel Grade:

Integral HWDP : AISI 4145HM
Welded HWDP : AISI 1340 pipe body, AISI 4140HM tool joint

Sizes Range:

Outer Diameter: 2 7/8” – 6 5/8”
Weight Range: 6.27#/FT through 27.72#/FT
Lengths: Range 2 and Range 3
End Finishes: Internal Upset, External Upset, Plain End Upset, Non Upset
Tool Joint type：NC38、NC46、NC50、5-1/2 FH

Feature:

A. High precision in size and shape
B. Good low temperature toughness
C. Excellent comprehensive mechanical properties
D. High connection strength and sealability
E. Large inside diameter of tool joint
F. High torque resistance
G. High fatigue strength and long fatigue life

Internal Coating Feature:

A.High abrasion resistance and low friction factor
B. Good adhesion and flexility
C. High application temperature and pressure
D. High hardness and impact resistance
E. Good corrosion resistance

Hardbanding Feature:

A. Good balance between antiwear and friction-reduction
B. The wear rate is less than 6% of that of bare tool joint, which can prolong 3 times of the tool joint service life
C. Good property of friction-reduction, which can reduce the casing wear to the least, and its wear to casing is less than 11% of that of bare tool joint
D. Reduce the torque of drilling string
E. Good weldablity with little splash and good rewelding preformance
F. Friendly to environment

Options:

Internal Plastic Coating
Hardband Type especially on box and pin tool joint
Proprietary Connections
Make and Break Test

Mill Test Certificates:

Issued in accordance with API Spec 7/7-1 and API RP7G .
Third Party Inspection can be performed on request at buyer’s care and expense.

Recommendations for running heavy weight drill pipe:

When run in vertical holes for weight:
1. Run the necessary number of joints to provide the required weight plus enough more joints to ensure the transition point stays in the heavy weight pipe.
2.Do not run in compression where the hole size is more than 4″ larger than the heavy weight tool joint size.

When run in the transition zone between pipe and collars:
1. Run a minimum of 18 to 21 joints.
2. Utilize the manufacturer’s recommendations for the maximum drill collar size to be run below the heavy weight.

When run in directional holes for weight:
1. Run the necessary number of joints to achieve the desired weight on bit. (It is not uncommon to run as many as 60 joints in this application.)

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Standard Drill Collar

Drill collar are extra-heavy integral tools used to concentrate weight onto the drill bit so as to produce sufficient force for the drill bit to break rock efficiently while drilling. They are made of AISI 4145H modified steel and are connected between drill pipes and drill bits.

Introduction:

Drill Collar are one of the parts of a drill’s string. Drill for the Collars is meant to provide weight for drilling purposes. Drill collar has bars of solid steel that are drilled from one end to the other to provide a passage for pumping the drilling fluids through the collar.

Application:

Quality Standard: API Spec. 7/7-1, API RP7G

Size Range:

OD 3 1/8″ – 11″
Length: The standard drill collar length is 31′ 6″ . For outside diameters larger than 4″, slip or elevator recesses can be cut according to API-recommended practice RP7G. Connections are cut with standard API relief features, cold rolled and kemplated.

Features and Benefits:

API Boreback Box Connection
API stress relieve groove pin connection
Cold Rolling Thread roots
Phosphate coated connections
A hardness range of 285 to 341 BHN and a Charpy impact value of 40 ft-lbs are guaranteed at evenly distributed 16 points in any sections at room temperature;
Connections are completed（phosphate coated）to protect them from the elements after machining and to help prevent galling upon initial make-up;
Thread roots are cold rolled on API and H-90 connections;
Pressed steel thread protectors are supplied for all drill collar that are equipped with standard connections

Protection:

Standard Pressed Steel Thread Protectors.
Cast Steel Lifting Bail Thread Protectors upon request.

Mill Test Certificates:

Issued in accordance with API 7/7-1 and API RP7G specifications.
Third Party Inspection can be performed on request at buyer’s care and expense.

ORDERING INSTRUCTIONS:

When ordering or requesting quotations on drill collars, please specify:

1. Drill collar OD
2. Drill collar ID
3. Overall length
4. Connections required (size and type)
5. Indicate preference for pressed or cast steel thread protectors
6. Special features desired, for example:

Slick or Spiral
Stress Relief Features
Slip and/or Elevator Recess
Hardbanding

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