JP2012214875A - 優れた性能用の変化する機械的特性を持つコイル管とその連続熱処理製法 - Google Patents
優れた性能用の変化する機械的特性を持つコイル管とその連続熱処理製法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 66
- 238000010438 heat treatment Methods 0.000 title claims abstract description 63
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- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 238000005260 corrosion Methods 0.000 claims description 19
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- 229910052751 metal Inorganic materials 0.000 description 13
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- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 12
- 238000005336 cracking Methods 0.000 description 12
- 238000005098 hot rolling Methods 0.000 description 11
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 7
- 239000011651 chromium Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 229910052804 chromium Inorganic materials 0.000 description 6
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
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- 239000010936 titanium Substances 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- QFGIVKNKFPCKAW-UHFFFAOYSA-N [Mn].[C] Chemical compound [Mn].[C] QFGIVKNKFPCKAW-UHFFFAOYSA-N 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 238000011088 calibration curve Methods 0.000 description 3
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- QDMRQDKMCNPQQH-UHFFFAOYSA-N boranylidynetitanium Chemical compound [B].[Ti] QDMRQDKMCNPQQH-UHFFFAOYSA-N 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
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- 239000007795 chemical reaction product Substances 0.000 description 1
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- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
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- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
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- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
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- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
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- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
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Abstract
【解決手段】連続動的熱処理過程(CDHT)を使うことにより生産され、長さに沿って改良され、変化する特性を有するコイル管。コイル管はスプールからほどかれ、連続動的熱処理過程に供され、そしてスプール上に捲かれる。連続動的熱処理過程は“複合”管を、該管の長さに沿った該管の特性が選択的に変えられるよう、作ることが出来る。例えば、該管の特性は、該管が使用される特定応用のために該管の長さに沿って選択的に誂えられることが出来る。
【選択図】なし
Description
内径を有することにより、管の長さ全体に沿って内径が検査されてもよい。例えば、該内径を検査するために、ドリフトボール(drift ball)が使われてもよい。しかしながら、ドリフトボールはテーパ付き管では最小内径を検査するために使われるのみである。加えて、テーパ付き管を通る流体流量(例えば、容量)は、該管の最小内径に限定される。従って、壁厚さを増加することにより管の或る部分の内径を減少させないことにより、該管の容積及び容量は増加される。
フィートの間又は約10,000フィートと約40,000フィートの間)の長さを有してもよい。該管の第1部分は約304.8m(1,000フィート又は約1,000フィート)と約1,219.2m(4,000フィート又は約4,000フィート)の間の長さを有してもよい。更に、該管は一緒に溶接された複数の管部分を有してもよく、該管部分の各々は少なくとも約457.2m(1,500フィート又は約1,500フィート)の長さを有してもよい。各管部分の長さは該管を形成する斜め溶接部間の間隔に関係する。該管部分は管に形成された後一緒に溶接されてもよく、或いは平板ストリップとして一緒に溶接され、次いで管に形成されてもよい。該管は実質的に一定の壁厚さを有する。例えば、第1部分は第1壁厚さを有し、第2部分は該第1壁厚さと実質的に同じであってもよい第2壁厚さを有する。該第1部分は第1内径を有し、第2部分は該第1内径と実質的に同じ第2内径を有する。
れており、そして取り外し時、該コイル管は該油井内部の摩擦力に抗して引かれるであろう。これらの例で、該油井の頂部の該コイル管の材料は最大軸方向負荷に供される。加えて、より深い油井用では、該コイル管の上部部分の壁厚さは、該軸方向負荷(吊り又は引きの両者)に耐えるよう増加されてもよい。テーパ付き管の使用は、該コイル管の合計重量を減じるために、該コイル管の上部部分内でのみ壁厚さを増やすことを可能にするため使われて来た。軸方向負荷の耐久性を増やすために高い機械的特性を有する種々の組成の材料が使用されたが、これらの材料はより高価で、処理が難しく、低い対腐食耐久性しか有しない傾向がある。
12はボックス20で表される連続動的熱処理過程を通過し、次いで第2スプール14b上に巻き直しされる。
クロムベアリング鋼:0.23から0.28重量%(又は約0.23から約0.28重量%)の炭素、1.20から1.60重量%(又は約1.20から約1.60重量%)のマンガン、0.15から0.35重量%(又は約0.15から約0.35重量%)のケイ素、0.015から0.070重量%(又は約0.015から約0.070重量%)のアルミニウム、0.020重量%(又は約0.020重量%)より少ないリン、0.005重量%(又は約0.005重量%)より少ない硫黄、そして0.15から0.35重量%(約0.15から約0.35重量%)のクロムを含むコイル管;
炭素−マンガン:0.25から0.29重量%(又は約0.25から約0.29重量%)の炭素、1.30から1.45重量%(又は約1.30から約1.45重量%)のマンガン、0.15から0.35重量%(又は約0.15から0.35重量%)のケイ素、0.015から0.050重量%(又は約0.015から約0.050重量%)のアルミニウム、0.020重量%(又は約0.020重量%)より少ないリン、0.005重量%(又は約0.005重量%)より少ない硫黄を含むコイル管;
ボロン−チタン:0.23から0.27重量%(又は約0.23から約0.27重量%)の炭素、1.30から1.50重量%(又は約1.30から1.50重量%)のマンガン、0.15から0.35重量%(又は約0.15から0.35重量%)のケイ素、0.015から0.070重量%(又は約0.015から約0.070重量%)のアルミニウム、0.020重量%(又は約0.020重量%)より少ないリン、0.005重量%(又は約0.005重量%)より少ない硫黄、0.010から0.025重量%(又は約0.010から約0.025重量%)のチタン、0.0010から0.0025重量%(又は約0.0010から約0.0025重量%)のボロン、0.0080重量%(又は約0.0080重量%)より少ない窒素そして3.4(又は約3.4)より大きいチタン対窒素の比を有するコイル管;そして
マルテンサイトステンレス鋼:0.12重量%(又は約0.12重量%)の炭素、0.19重量%(又は約0.19重量%)のマンガン、0.24重量%(又は約0.24重量%)のケイ素、11.9重量%(又は約11.9重量%)のクロム、0.15重量%(又は約0.15重量%)のコロンビウム、0.027重量%(又は約0.027重量%)のモリブデン、0.020重量%(又は約0.020重量%)より少ないリン、0.005重量%(又は約0.005重量%)より少ない硫黄を含むコイル管、である。
質的部分とであるが、該第1セットの特性の少なくとも1つの特性が第2セットの特性の少なくとも1つの特性と異なるようにして、該両実質的部分を備える。更に、該コイル管は2つより多い実質的部分を有してもよい。例えば、該コイル管は第3セットの特性を有する管の第3の実質的な部分であるが、該第3セットの少なくとも1つの特性が、該第1セットの特性の少なくとも1つの特性及び該第2セットの特性の少なくとも1つ特性と異なる、該第3の実質的部分を有してもよい。ここで説明される実質的な部分は、該部分の少なくとも1つの特性の測定を可能にするのに充分なサイズ(例えば、長さ)を有する部分である。或る実施例では、該コイル管の少なくとも1つ特性は連続的に(例えば、無限に近い数の部分)変わる。
示される様に、その使用法を最適化するよう変えられた変化する特性を有する独特のコイル管製品を発生するため使われてもよい。該熱処理された顕微鏡組織は熱間圧延の顕微鏡組織より遙かに微細で均質であり、改良された対腐食耐久性及び疲労特性を提供出来る。該熱処理は又成形(例えば、熱間圧延動作及び管成形動作)時発生される材料の内部応力を緩和することが出来る。
0.70×SMYS=A(面積)×L(長さ)×密度/A=L×密度
SMYS=L×密度/0.70=約6,858m×約7.84×106g/m3/0.7={(22,500フィート)×(0.283ポンド/インチ3)×(12インチ/フィート)/0.70}
SMYS≒約758.42MPa(110,000psi)
とにより改良された疲労寿命を有することが出来る。硫化物応力割れに対する耐久性は非特許文献4及び1に従って評価されてもよい。炭素−マンガン鋼での1つの強い相関性は硬さと硫化物応力割れ耐久性の間の関係である。前に論じられた様に、一般に、より高い硬さを有する鋼はより低い硫化物応力割れ耐久性に帰着する。又、一般に、より高い強度を有する鋼はより低い硫化物応力割れ耐久性に帰着する高い硬さを有する。該複合コイル管は硫化物応力割れに甚だしく見舞われる該コイル管の下部部分に限定した低強度管を有してもよい。更に、複合コイル管は硫化物応力割れに見舞われ難い該コイル管上部部分に限定した高強度管を有してもよい。
範囲から離れることなく、図解された装置の詳細の形のみならず、それらの使用法の種々の省略、置換及び変更が当業者により行われ得ることは理解されるであろう。従って、本開示の範囲は前記論議に限定されるべきではない。
Claims (23)
- 管を処理する方法であって、
該管のスプールを提供する過程と、
該スプールから該管をほどく過程と、
該ほどかれた管の長さに沿って変化する特性を提供するために該ほどかれた管を熱処理する過程と、そして
熱処理後該管を捲く過程と、を具備する方法。 - 該変化する特性が機械的特性を有する請求項1記載の方法。
- 該ほどかれた管の長さに沿って変化する特性を提供するために、該ほどかれた管の熱処理時に、温度、均熱化時間、加熱速度及び冷却速度の少なくとも1つが変えられる請求項1記載の方法。
- 該管が該管全体を通して実質的に一定の壁厚さを有する請求項1記載の方法。
- コイル管であって、
第1セットの特性を有する該管の第1の実質的な部分と、そして
第2セットの特性であって、第1セットの特性の少なくとも1つの特性が第2セットの特性の少なくとも1つの特性と異なるように、該第2セットの特性を有する該管の第2の実質的な部分と、を具備するコイル管。 - 該第1及び該第2セットの特性の該少なくとも1つの特性が降伏強さ、引っ張り強さ、疲労寿命、粒度、対腐食耐久性又は硬さを有する請求項5記載のコイル管。
- 該管が該管全体を通して実質的に一定壁厚さを有する請求項5記載のコイル管。
- 該管が該管全体を通して実質的に均一な組成を有する請求項5記載のコイル管。
- 該管の該第1の実質的な部分が第1の降伏強さを有し、該管の該第2の実質的な部分が該第1の降伏強さと異なる第2の降伏強さを有する請求項5記載のコイル管。
- 一緒に溶接された複数の管部分を更に具備しており、該複数の管部分の1つの該管部分の少なくとも1部分が該第1の実質的な部分を有しており、同じ管部分の少なくとももう1つの部分が該第2の実質的な部分を有する請求項5記載のコイル管。
- 油井で使用するコイル管であって、
該管の全長に沿って実質的に均一な組成を有する鋼材料を備える長尺の管を具備しており、該長尺の管が、該油井の頂部に位置付けられるよう構成された少なくとも第1の部分と、該第1の部分に対し該油井の底部の方へ位置付けられるよう構成された少なくとも第2の部分と、を有しており、そして
該長尺の管の該第1の部分は第1の降伏強さを有し、該長尺の管の該第2部分は第2の降伏強さを有し、該第1の降伏強さは該第2の降伏強さと異なるコイル管。 - 該長尺の管が該第1及び第2の降伏強さの間の第3の降伏強さを有する該管の第3の部分を更に有し、該第3の部分が該第1及び該第2の部分の間に配置される請求項11記載のコイル管。
- 該長尺の管が一緒に溶接された複数の管部分を有し、該管部分の各々が少なくとも約4
57.2m(約1,500フィート)の長さを有する請求項11記載のコイル管。 - 該第1の部分が第1の内径を有し、該第2の部分が該第1の内径と実質的に同じ第2の内径を有する請求項11記載のコイル管。
- 該第1の部分が第1の壁厚さを有し、該第2の部分が該第1の壁厚さと実質的に同じ第2の壁厚さを有する請求項11記載のコイル管。
- 該長尺の管が約3,048m(約10,000フィート)と約12,192m(約40,000フィート)の間の長さを有する請求項11記載のコイル管。
- 該第1の部分が約689.48MPa(約100ksi)より大きい降伏強さを有し、該第2の部分が約620.53MPa(約90ksi)より小さい降伏強さを有する請求項11記載のコイル管。
- 該長尺の管が該長尺の管の全長に沿って実質的に一定の壁厚さを有する請求項11記載のコイル管。
- 該長尺の管が約25.4mm(約1インチ)と約127mm(約5インチ)の間の外径を有する請求項11記載のコイル管。
- 該長尺の管が約2.032mm(約0.080インチ)と約7.620mm(約0.300インチ)の間の壁厚さを有する請求項11記載のコイル管。
- 該長尺の管が該長尺の管の全長に沿って実質的に一定の内径を有する請求項11記載のコイル管。
- 該長尺の管がテーパを有しない請求項11記載のコイル管。
- 該長尺の管が少なくとも1つのテーパを有する請求項11記載のコイル管。
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Publication number | Publication date |
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US20120186686A1 (en) | 2012-07-26 |
RU2582326C2 (ru) | 2016-04-20 |
JP5937365B2 (ja) | 2016-06-22 |
CA2765294A1 (en) | 2012-07-25 |
US11952648B2 (en) | 2024-04-09 |
CN102618709B (zh) | 2017-03-22 |
US20200102633A1 (en) | 2020-04-02 |
EP2479294A1 (en) | 2012-07-25 |
US10480054B2 (en) | 2019-11-19 |
CA2765294C (en) | 2019-06-11 |
US9163296B2 (en) | 2015-10-20 |
CN102618709A (zh) | 2012-08-01 |
US20160024625A1 (en) | 2016-01-28 |
RU2012102444A (ru) | 2013-07-27 |
EP2479294B1 (en) | 2021-11-17 |
DK2479294T3 (da) | 2022-02-14 |
US20240247351A1 (en) | 2024-07-25 |
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