Slotted pipe

Short Description:


  • Standard: API 5CT
  • Grade: API J55, API K55, API N80, API L80, API P110
  • Thickness: 6.88mm - 11.51mm
  • Certification: ISO, API, TPI
  • Sorts: API casing
  • Length: ≤15m (each)
  • Outside Diameter: 50~200mm
  • Slot Width: (0.10~4)mm ±0.03mm
  • Slot Number: as per customer’s requirement
  • Slot Shapes: straight in line pattern, staggered pattern, spiral pattern
  • Slot space: as per customer’s requirement
  • Description

    Specifications

    Standards

    Packing

    The slotted casing pipes using in oil exploration can prevent 99% sand, decrease 80% of oil well heavy maintenance, as well increase the strength of the oil well, integrality and stability of keeping sand off. Meanwhile, the laser incision tech can make the slot be smooth and precision. The structure of slotted casing pipe is sample, but it works highly efficient.

    Slotted tube processing is on high strength steel body with cold or hot working methods, cutting out hundreds of thousands of longitudinal cracks, cracks commonly used specifications for: seam width 0.15 3 mm, even more wide, gap length 50-200 mm.Cross section types are: rectangular, ladder shaped, specific and various, also has a circular groove screen, aperture diameter specifications range 5-20 mm in meters.Slotted sieve tube hole seam cutting quality mainly depends on the precision of seam width, hole seam cross-section shape neat degree, on the edge of the hole seam smoothness and the degree of corrosion resistance of hole seam.

    slotted pipe

    Straight Slots Slots are cut with equal width through the wall of the pipe both ID and OD. Specified where sand grain bridging at the slot is not of major importance, straight slots are more wear-resistant than seamed keystone slots and are less costly to produce. Common applications of Straight cut slots are for Cold Production and CBM horizontal wells in addition to SAGD injector wells.

    Seamed Keystone Slots -are milled wider on the pipe interior and are self cleaning to help prevent plugging. Narrow at the liner surface and increasing in width at the interior, they let sand that does enter pass easily through the slots without plugging.

    slotted pipe


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  • API Casing pipe

    ID
    mm

    Length
    m

    Slot Length
    mm

    Slot No.
    No./m

    Slot width 
    mm

    Slot 
    Tolerance

    Valid Filter
    Area
    cm/m

    Max.
    Strength
    KN

    Spec

    mm

    Thickness
    mm

    Per Weight 
    kg/m

    60.32

    5

    6.84

    50.3

    3

    80

    200

    0.3

    ±50

    48

    512.54

    73.02

    5.5

    9.15

    62

    240

    57.6

    688.55

    88.9

    6.5

    13.22

    75.9

    280

    67.2

    995.1

    101.6

    6.5

    15.22

    88.6

    300

    72

    1151.2

    114.3

    7

    18.47

    100.3

    10

    320

    76.8

    1400.4

    127

    7.52

    22.13

    112

    340

    81.6

    1673.8

    139.7

    7.72

    25.11

    124.3

    360

    86.4

    1900.2

    9.17

    29.48

    121.4

    360

    86.4

    2232.4

    168.3

    8.94

    35.09

    150.4

    400

    96

    2672.95

    177.8

    8.05

    33.68

    161.7

    440

    105.6

    2559.2

    9.19

    38.19

    159.4

    440

    105.6

    2940.7

     

    Sreen pipe dimension (in) OD(mm) Wall thickness(mm) ID (mm) Stitch number of each circle Slot width(mm) Slot length (mm) Length(mm)
    2-3/8″ 60.3 4.83 50.64 12~18 0.2~0.8 45~100 1000~12000
    2-7/8″ 73 5.51 61.98 20~24 45~100
    3-1/2″ 88.9 6.45 76 24~28 45~100
    4″ 101.6 6.65 88.29 24~30 45~100
    4-1/2″ 114.3 5.69 102.92 24~30 45~100
    6.35 101.6 45~100
    7.37 99.57 45~100
    8.56 97.18 45~100
    5″ 127 5.59 115.82 28~36 0.25~0.8 45~100
    6.43 114.15 45~100
    7.52 111.96 45~100
    9.19 108.61 45~100
    5-1/2″ 139.7 6.2 127.3 30~38 45~100
    6.99 125.73 45~100
    7.72 124.26 45~100
    9.17 121.36 45~100
    10.54 118.62 45~100
    7″ 177.8 6.91 163.98 36~50 45~100
    8.05 161.7 45~100
    9.19 159.41 45~100
    10.36 157.07 45~100

    1. Our perforated pipe use J55/K55/N80 casing and tubings of API standard, with High overall strength, not    so easy to deformation.

    2. The edge of the slot is vertical, smooth, without burrs, and the slot is uniformity.

    3. The perforated pipe is suitable for sandy well, which the diameter of the sand greater than 0.3mm.

    4. The slot can be longitudinal and transverse, the section of the slot can be parallel and trapezoidal types, with a wide open area.

    5. Slotted screen pipe has a big inner diameter.

    API Spec 5CT Specification 5CT/ISO 11960, Specification for Casing and Tubing, Eighth Edition, Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells

    Standard Grade Chemical compositions(%)
    API SPEC 5CT J55 C Si Mn P S Cr Ni Cu Mo V
    K55 0.34~0.39 0.20~0.35 1.25~1.50 ≤0.020 ≤0.015 ≤0.15 ≤0.20 ≤0.20 / /
    N80 0.34~0.38 0.20~0.35 1.45~1.70 ≤0.020 ≤0.015 ≤0.15 / / / 0.11~0.16
    L80 0.15~0.22 ≤1.00 0.25~1.00 ≤0.020 ≤0.010 12.0~14.0 ≤0.20 ≤0.20 / /
    P110 0.26~0.395 0.17~0.37 0.40~0.70 ≤0.020 ≤0.010 0.80~1.10 ≤0.20 ≤0.20 0.15~0.25 ≤0.08

    Mechanical Properties

    Grade Type Total elongation under load (%) Yield strength (min) Yield strength (max) Tensile strength min Mpa Hardness Max (HRC) Hardness Max(HBW)
    J55 - 0.5 379 552 517 - -
    K55 - 0.5 379 552 655 - -
    N80 1 0.5 552 758 689 - -
    N80 Q 0.5 552 758 689 - -
    L80 1 0.5 552 655 655 23 241
    L80 9Cr 0.5 552 655 655 23 241
    L80 13Cr 0.5 552 655 655 23 241
    C90 - 0.5 621 724 689 25.4 255
    C95 - 0.5 655 758 724 - -
    T95 - 0.5 655 758 724 25.4 255
    P110 - 0.6 758 965 862 - -
    Q125 All 0.65 862 1034 931 - -

    Single with bubble bag and then in wooden case (fumigation certificate). Each case is clearly marked with:

    1. Name & identification mark of manufacturer-HuaDong Brand

    2. Batch number

    3. Date of manufacturer

    4. Material

    5. Safe heating & application temperature

    Hot-and-Cold-Finished-Tubes-Pipes-Package