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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0200345 (1998-11-25) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 419 인용 특허 : 16 |
An expandable tubing (12) for a well bore hole (14) in which selected length portions (24, 26, 28) are weakened by a slot configuration (FIGS. 2, 3, 4) to obtain predetermined expansion characteristics. The slot configurations are tailored or selected for a predetermined bore hole length and may be
An expandable tubing (12) for a well bore hole (14) in which selected length portions (24, 26, 28) are weakened by a slot configuration (FIGS. 2, 3, 4) to obtain predetermined expansion characteristics. The slot configurations are tailored or selected for a predetermined bore hole length and may be expanded to different radial diameters to conform generally to the peripheral contour of the bore hole. Tubing portions (29) between the slotted length potions (24, 26, 28) are unweakened.
1. A lining tube for a well bore hole to expand against predetermined length portions of the bore hole; said lining tube having selected length portions in transverse alignment with said bore hole length portions and constructed for controlled radial expansion against said bore hole length portions
1. A lining tube for a well bore hole to expand against predetermined length portions of the bore hole; said lining tube having selected length portions in transverse alignment with said bore hole length portions and constructed for controlled radial expansion against said bore hole length portions relative to the remainder of said lining tube, and relieving means at each of said selected length portions for relieving said selected length portions in response to the application of force, said relieving means being varied at different selected length portions to provide different predetermined expansion characteristics for different selected length portions.
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