What is P110 Oil Casing
P110 oil casing is a crucial oil drilling tools, the main tools also petroleum equipment services anchorage melbourne includes a drill, core and casing pipe, drill collar and small-diameter steel pipe and different drilling. Domestic steel ca…
P110 oil casing is a crucial oil drilling tools, the primary gear additionally includes a drill, core and casing pipe, drill collar and small-diameter steel pipe and other drilling. Domestic steel casing are all sizzling rolled or chilly drawn with geological drilling steel, steel grade with (DZ), frequent casing steel petroleum equipment services anchorage melbourne grade are DZ40, DZ55, DZ753 species.
Used as oil effectively drilling pipe.
In response to SY / T6194-96 “oil casing”, divided into short thread casing and couplings and lengthy thread casing and coupling two sorts.
3. specifications and appearance quality
(1) domestic casing in accordance with SY / T6194-96 rules, casing size no reduce to size, its range eight-13m. But the casing of no lower than 6m could also be provided, which shall not exceed 20%.
(2) the interior and outer floor of the casing shall don’t have any folded, hair sample, separation, crack, rolled off and scarring. These defects should be completely eliminated, and the clear depth shouldn’t exceed 12.5% of the nominal wall thickness.
(Three) coupling the outer floor may not have folded, hair sample, separation, crack, rolled off, scarring and other United defects.
(4) casing and threaded coupling floor must be clean, doesn’t allow burr, tear and impact energy enough to interrupt threads and other defects in shut connection.
Four. chemical composition inspection
(1) in keeping with SY / T6194-96 rules. Casing and couplings utilizing the same grade. Sulfur content <0.045%, phosphorus content <0.045%.
(2) according to the provisions of GB222-84 chemical analysis of samples taken. Chemical analysis in accordance with the provisions of the relevant parts of GB223.
(3) American Petroleum Institute ARISPEC5CT1988 1st edition rules: Chemical analysis of sample preparation by ASTME59 latest version, chemical analysis according to the latest version ASTME350.
5. physical efficiency check
(1) based on SY / T6194-96 rules. For flattening take a look at (GB246-ninety seven) tensile testing (GB228-87) and hydrostatic testing.
(2) based on the American Petroleum Institute APISPEC5CT1988 1st edition supplies for the hydrostatic test, flattening test, sulfide stress corrosion cracking test, hardness test (ASTME18 or the most recent version of the provisions E10), tensile check, the lateral affect check (ASTMA370, ASTME23 and the related provisions of the most recent version of the usual), grain dimension determination (ASTME112 latest version or different strategies).
In accordance with SY / T6194-96 rules, domestic casing ought to be strapped with wire or steel. Each casing pipe and the exposed portion of the threaded couplings must be screwed on the guard ring to protect the threads.
In accordance with the American Petroleum Institute Customary APISPEC5CT 1988 1st version, oil casing steel fraction H-40, J-55, Okay-fifty five, N-80, C-seventy five, L-80, C-ninety, C-ninety five, P- 110, Q-125 a total of 10 kinds.
Casing ought to be obtainable with threaded and couplings, or by any of the following supply:
Flat end, spherical thread without coupling or with coupling, buttress thread couplings with or with out coupling, direct sort thread, special finish processing, ring structure.