Product classification
API petroleum casing 88.90 * 7.34
API oil casing has a hollow cross-section and is widely used as a pipeline for transporting fluids, such as oil, natural gas, gas, water, etc. API petroleum casing is mainly used for drilling oil and gas wells and transporting oil and gas. It includes oil drill pipes, oil casings, and oil extraction pipes. Petroleum drill pipes are mainly used to connect drill collars and drill bits and transmit drilling power. Petroleum casing is mainly used to support the wellbore during drilling and after completion, to ensure the normal operation of the entire oil well during the drilling process and after completion.
- 产品描述
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API oil casing has a hollow cross-section and is widely used as a pipeline for transporting fluids, such as oil, natural gas, gas, water, etc. API petroleum casing is mainly used for drilling oil and gas wells and transporting oil and gas. It includes oil drill pipes, oil casings, and oil extraction pipes. Petroleum drill pipes are mainly used to connect drill collars and drill bits and transmit drilling power. Petroleum casing is mainly used to support the wellbore during drilling and after completion, to ensure the normal operation of the entire oil well during the drilling process and after completion.

API oil casing has a hollow cross-section and is widely used as a pipeline for transporting fluids, such as oil, natural gas, gas, water, etc.
API petroleum casing is mainly used for drilling oil and gas wells and transporting oil and gas. It includes oil drill pipes, oil casings, and oil extraction pipes. Petroleum drill pipes are mainly used to connect drill collars and drill bits and transmit drilling power. Petroleum casing is mainly used to support the wellbore during drilling and after completion, to ensure the normal operation of the entire oil well during the drilling process and after completion.
Oil casing is the lifeline for maintaining the operation of oil wells. Due to different geological conditions, the stress state underground is complex, and the combined effects of tension, compression, bending, and torsion stress on the casing body pose high requirements for the quality of the casing itself. Once the casing itself is damaged for some reason, it may lead to a reduction in production or even scrapping of the entire well.
Anti corrosion measures for petroleum casing:
Firstly, ensure that the water quality meets the standards and strictly monitor and manage the water quality. Implement separate injection of clean and dirty water, strengthen the cleaning of the main water pipeline, ensure that the water quality inside the station and at the bottom of the well meets the standard, and reduce the entry of corrosion sources into the annular space;
2. For newly put into operation water injection wells, the main method is to use annular protective fluid mainly for adding sterilization, and establish a system for regular addition;
3. Considering the accelerated effect of mechanical scraping on the corrosion of petroleum casing, it is recommended to add rubber rings to the tubing couplings or centralizers in severely deviated areas;
4. Considering the severe corrosion of bacteria under the scale and the slow growth and killing of SRB under high temperature, it is possible to regularly inject 100 degrees Celsius high-temperature water or steam into the annulus to kill the SRB under the scale;
5. It is not recommended to promote the use of cathodic protection and coated casing until the corrosion inside the casing of the water injection well is effectively controlled.
Size
Linear Mass lb/ft
Outside diameter
Wall thickness
Type of end-finish
Grade
Nonupset
T﹠CEx-Upset
T﹠Cln.
mm
ln.
mm
J-55
L-80
N-801 Class、Q Class
C-90
T-95
P-110
2 3/8”
4.00
--
2.375
60.33
0.167
4.24
PN
PN
PN
PN
PN
--
4.60
4.70
2.375
60.33
0.190
4.83
PNU
PNU
PNU
PNU
PNU
PNU
5.80
5.95
2.375
60.33
0.254
6.45
--
PNU
PNU
PNU
PNU
PNU
6.60
--
2.375
60.33
0.295
7.49
--
P
--
P
P
--
7.35
7.45
2.375
60.33
0.336
8.53
--
PU
--
PU
PU
--
2 7/8”
6.40
6.50
2.875
73.03
0.217
5.51
PUN
PNU
PNU
PNU
PNU
PNU
7.80
7.90
2.875
73.03
0.276
7.01
--
PNU
PNU
PNU
PNU
PNU
8.60
8.70
2.875
73.03
0.308
7.82
--
PNU
PNU
PNU
PNU
PNU
9.35
9.45
2.875
73.03
0.340
8.64
--
PU
--
PU
PU
--
10.50
--
2.875
73.03
0.392
9.96
--
P
--
P
P
--
11.50
--
2.875
73.03
0.440
11.18
--
P
--
P
P
--
3 1/2”
7.70
--
3.500
88.90
0.216
5.49
PN
PN
PN
PN
PN
--
9.20
9.30
3.500
88.90
0.254
6.45
PNU
PNU
PNU
PNU
PNU
PNU
10.20
--
3.500
88.90
0.289
7.34
PN
PN
PN
PN
PN
--
12.70
12.95
3.500
88.90
0.375
9.52
--
PNU
PNU
PNU
PNU
PNU
14.30
--
3.500
88.90
0.430
10.92
--
P
--
P
P
--
15.50
--
3.500
88.90
0.476
12.09
--
P
--
P
P
--
17.00
--
3.500
88.90
0.530
13.46
--
P
--
P
P
--
4”
9.50
--
4.000
101.60
0.226
5.74
PN
PN
PN
PN
PN
PU
--
11.00
4.000
101.60
0.262
6.65
PU
PU
PU
PU
PU
PU
13.20
--
4.000
101.60
0.33.
8.38
--
P
--
P
P
--
16.10
--
4.000
101.60
0.415
10.54
--
P
--
P
P
--
18.90
--
4.000
101.60
0.500
12.70
--
P
--
P
P
--
22.20
--
4.000
101.60
0.610
15.49
--
P
--
P
P
--
4 1/2”
12.60
12.75
4.500
114.30
0.271
6.88
PNU
PNU
PNU
PNU
PNU
--
15.20
--
4.500
114.30
0.337
8.56
--
P
--
P
P
--
17.00
--
4.500
114.30
0.380
9.65
--
P
--
P
P
--
18.90
--
4.500
114.30
0.43
10.92
--
P
--
P
P
--
21.50
--
4.500
114.30
0.500
12.70
--
P
--
P
P
--
23.70
--
4.500
114.30
0.560
14.22
--
P
--
P
P
--
26.10
--
4.500
114.30
0.630
16.00
--
P
--
P
P
--
Non-Upset T﹠C—Non-upset threaded and coupled
P—Plain end
Ex-Upset T﹠C—External upset threaded and coupled
N—Non-upset threaded and coupled
U—External upset threaded and coupled关键词:- API petroleum casing
- Oil casing
- Oil casing manufacturer
- Cangzhou oil casing
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Main business: American standard oil casing, pipeline pipe, Cangzhou oil casing, API oil casing, Hebei oil casing, polyurethane insulation pipe, galvanized wire steel pipe, 3PE anti-corrosion steel pipe, thickened oil pipe, large diameter oil casing, oil casing factory, insulation pipe, oil casing, anti-corrosion steel pipe, etc.
Address: Zhenggang Development Zone, Yanshan County, Hebei Province
Email:czbggy@163.com
Telephone:18831708666 18931747888