An intelligent heating device for oil well thermal fluid
An intelligent heating and thermal fluid technology, applied in isolation devices, production fluids, wellbore/well components, etc., can solve problems such as large heat loss, large pressure changes, and inability to keep fluids warm
Active Publication Date: 2020-06-09
盘锦辽河油田金宇集团有限公司
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Problems solved by technology
However, in the actual use process, it was found that the device has the following problems: although the concentric inner insulation pipe is wrapped with insulation material, because the oil well is deep and the pressure changes greatly, the current insulation material cannot effectively insulate the fluid in the concentric inner insulation pipe , when the fluid flows in the concentric inner insulation tube, the heat loss is relatively large, and the heat cannot be effectively transferred to the crude oil
Method used
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[0036] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0037] In the present invention, unless otherwise specified, the used orientation words such as "upper, lower, top, and bottom" usually refer to the orientation in the state of installation and use. "Inner and outer" refer to inner and outer relative to the outline of each component itself.
[0038] The invention provides an intelligent heating device for oil well thermal fluid, comprising:
[0039] The oil pipe 11, the oil pipe 11 is coaxially inserted in the oil well 10 extending in the vertical direction, and there is a radial gap between the oil pipe 11 and the oil well 10 to form a first annular space;
[0040] The fluid circulation pipe 12, the fluid cir...
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The invention relates to the technical field of oil recovery engineering and discloses an intelligent heating device for a hot fluid of an oil well. The intelligent heating device comprises the oil well, an oil pipe, a fluid circulating pipe, a fluid circular heating system and an oil pumper. When the intelligent heating device for the hot runner of the oil well is used for recovering oil, the continuous circulating fluid can convey heat generated by combustion of gas in a stratum into the oil well continuously to be transferred to crude oil in a second annulus, so that the oil well is recovered smoothly. By arranging the annulus in a vacuum state in an inner pipe, heat loss in a process that the fluid flows downward in the inner pipe can be reduced effectively and efficient heat transferto the crude oil is achieved, so that the intelligent heating device for the hot fluid of the oil well can achieve high-efficiency and low-cost recovery of thickened oil and super thickened oil by fully utilizing natural gas in the stratum.
Description
technical field [0001] The invention relates to the technical field of oil production engineering, in particular to an intelligent heating device for oil well thermal fluid. Background technique [0002] In recent years, with the continuous exploitation of oilfields, the production of thin oil wells has become less and less, making heavy oil and super heavy oil the focus of exploitation. However, due to the high viscosity of heavy oil and super heavy oil, they cannot be successfully collected from oil wells, which greatly restricts the exploitation and utilization of heavy oil and super heavy oil. [0003] In order to smoothly collect heavy oil and ultra-heavy oil from the oil well, the utility model patent CN204804801U discloses an intelligent oil well thermal fluid heating device, which inserts concentric inner insulation pipes into the oil well to heat the fluid heated by the heater through The concentric inner insulation pipe is injected into the oil well, and the heat ...
Claims
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IPC IPC(8): E21B43/24E21B36/02
CPCE21B36/02E21B36/025E21B43/24
Inventor 赵可
Owner 盘锦辽河油田金宇集团有限公司