Manufactured to Handle Torque & Weight, used in beam pumping and in the PCP systems as drive strings.
Sucker Rods connected with an internally thread coupling which is specified by API 11B; Class T (or through hard) and Class SM (or spray metal) do form the Rod string.
The sucker-rod string; is the Key component of the pumping system. It provides the link between the surface pumping unit and the sub-surface pump (sucker-rod lift type of artificial lift system).
Design Standard:
– API 11B
* Sucker Rod Size:
– Length: 25 or 30 ft.
* Diameter:
– 5/8”, ¾”, 7/8”, 1”, & 1-1/4”.
* End Connections:
– Pin x Pin
– Pin x BOX using a Coupling (Class T / Class SM), Full Size (FS) or Slim Hole (SH)
* Test: API 11B
Drill pipes are steel tubular fitted with threaded ends called Tool Joints, which are commonly used in tension in the
top part of the drill string to “pump fluid and transmit torque to the bit”. The DRILL STRING is the drill pipe with the tool joints attached.
The drill pipe connects the rig surface equipment with the bottom hole assembly and the bit, both to pump drilling
fluid to the bit and to be able to raise, lower and rotate the bottom hole assembly and bit.
High Strength Drill Pipe – Because of deeper drilling and higher stress levels, grades of drill pipe stronger than Grade E-75 have been developed. Grades and minimum tensile yield strengths are:
Drill Pipe Grade Minimum Tensile Yield Strength
X-95 95,000
G-105 105,000
S-135 135,000
V-150* 150,000
*V-150 is not a standard API grade but is listed as the next higher grade above S-135.
Markings on Tool Joints for Identification of Drill String Components.- MONTH AND YEAR WELDED
-Longitudinally furnace butt welded or by mean of continuous welded process.
* Continuous welded pipes are considered as the lowest cost variants among all steel pipes.
Specifications
* ASTM A-53 Type F, which is (Grade A only).
* ASTM A-53A/53M, Federal, Specification WW-P404 & ASME B36.10M & B36.19M.
* ASTM A-120 (withdrawn 1988). A-501. A-589, A-618.and API5L.
Derives its name from the welding process wherein the welding arc is submerged in flux while the welding takes place.
Both inside and outside welds are required and are usually accomplished in separate processes, hence the word “double.”
These separate welds consume a portion of the other resulting in a single high quality weld nugget.
The processing of Electric Resistance Welded (ERW, induction welding and contact welding)pipe begins as a coiled
plate of steel with appropriate thickness and specific width to form a pipe that conforms to its relevant specification.
Longitudinally Submerged Arc Welded Steel pipes. – Longitudinal edges of steel plates as raw material, are first beveled using carbide milling equipment; Beveled plates are then formed into a U shape using a U-press and subsequently
into an O shape using an O-press.UOE is the name of the method used for production of longitudinally welded large
diameter pipes.
* API 6A Design & Test.
* Working Pressure Ratings (PSI) 3000 – 15000.
* Specially designed for mud, cement, fracturing and
water service to handle high and fluctuating pressure
and abrasives.
* Forged bodied and through conduit.
* Sizes 1-13/16”- 5-1/8”
* Grease injection fitting in bonnet.
* Available in standard flange ends, hammer union, hub,
threaded, or butt weld ends.
* Serviced in-line.
* Hard facing of components ensures better protection
highly corrosive, erosive and abrasive conditions.
* Material Class: AA- HH-NL
* Product Specification Level PSL1, PSL2, PSL3, PSL4.
* Performance Requirement Level PR1, PR2
* Working Temperature (-200 to 3500F).
