Yantai Enerserva Machinery Co., Ltd.

Yantai Enerserva Machinery Co., Ltd.

Landing String

Category: Landing String
Views: 1292

  • PRODUCT DETAIL

A Landing String is a heavy duty thick wall drill pipe, usually 0.500" wall or greater. It is used in many instances where regular drill pipe does not have sufficient tensile strength. A landing string can be used not only for drilling, but also to land heavy casing strings in the well or heavy equipment on the sea bed. A slip crushing resistant landing string is designed to resist to a phenomenon called slip crushing when gripped by the slips on the rotary table. Manufactured from the same grade of steel, the tensile rating directly correlates to the wall thickness.


Landing String sizes include 5", 5-1/2", 5-7/8, 6-5/8", & 6-5/8" Slip Proof. Grades S-135, Z-140, & V-150.


Our landing Strings offer a variety of drill pipe-based designs for non-slip crushing resistant landing strings: typically those landing strings exhibit large OD (up to 6-5/8"), proprietary high strength steel grades, and heavy wall sections (up to 0.938" wall).



Special Features:

• Higher running speed.

• Higher tensile and hoisting capacity.

• Increased elevator loading capacity.

• Better slip crushing resistance.


OD

Connection

Grade

Range

Wall

Nominal Weight

TJ OD

TJ ID

Tube ID

TJ Yield

Min MUT

Max MUT

Prem Tube Tensile

(in)

(in)

(lb/ft)

(in)

(in)

(ft-lbs)

(ft-lbs)

(ft-lbs)

(lbs)

5

NC50

S-135

II

0.5

25.6

6-5/8

2-3/4

4

63,400

31,700

38,000

746,442

5

NC50

V-150

II

0.5

25.6

6-5/8

2-3/4

4

63,400

31,700

38,000

829,380

5-1/2

HT55

S-135

II

0.75

38.05

7-1/8

3-1/4

4

107,100

53,500

64,200

1,170,556

5-1/2

5-1/2" FH

S-135

II

0.75

38.05

7-1/8

3-1/4

4

70,700

35,400

42,400

1,170,556

5-1/2

5-1/2" FH

S-135

II

0.75

38.05

7-1/4

3-1/4

4

78,700

39,400

47,200

1,170,556

6-5/8

6-5/8" FH

S-135

II

0.625

40.05

8-1/2

4-1/4

5.375

108,353

54,200

65,000

1,245,837

6-5/8

6-5/8" FH

S-135

III

0.625

40.05

8-1/2

4-1/4

5.375

108,353

54,200

65,000

1,245,837

6-5/8

6-5/8" FH

V-150

III

0.625

40.05

8-1/2

4-1/4

5.375

108,353

54,200

65,000

1,384,263

6-5/8

6-5/8" FH

S-135

II

0.750

47.06

8-1/2

4-1/4

5.125

108,353

54,200

65,000

1,456,834

6-5/8

6-5/8" FH

S-135

II

0.813

50.46

8-1/2

3-1/2

4.999

130,200

65,100

71,000

1,558,354

6-5/8

6-5/8" FH

V-150

II

0.813

50.46

8-1/2

3-1/2

4.999

130,200

65,100

71,000

1,731,504

6-5/8

DS65

V-150

II

0.813

50.46

8-1/2

4

4.999

146,000

82,600

87,600

1,731,504

6-5/8

6-5/8" FH

V-150

III

0.938

56.95

8-11/16

3-1/2

4.749

138,500

69,500

78,000

1,944,683

6-5/8

6-5/8" FH

V-150

II

0.938-1.703

56.95

8-11/16

3-1/2

4.749

138,500

69,500

78,000

1,944,683

6-5/8

6-5/8" FH

V-150

III

1.093-1.719

64.58

8-11/16

3-1/2

4.44

155,741

69,500

78,000

2,189,804




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