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 |