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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0543299 (1995-10-16) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 8 인용 특허 : 0 |
The basic method is to raise the temperatures of the tube, rod and liquid in the well into a range in which paraffin and asphaltene are removable by fluid flow in and from the well. The temperatures are raised by circulating the liquid through the well and a heat exchanger which heats the fluid whic
A method for removing paraffin and asphaltene from an oil well, said well comprising a tube having an outer surface, a rod, a casing and an annulus containing liquid, said rod being installed in said tube, said tube being installed in said casing, said annulus being between said outer surface and sa
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