Steam injection and oil extraction integrated lifting device for offshore heavy-oil thermal production well and operation method of steam injection and oil extraction integrated lifting device
A lifting device, a technology for thermal recovery of heavy oil, which is applied to the components of a pumping device for elastic fluid, production fluid, and earth-moving drilling, etc. Solving problems such as cold damage of oil layer, to achieve the effect of improving development efficiency, reducing operating costs, and increasing peak oil production period
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[0044] Such as figure 1 As shown, the present invention first provides a steam injection and oil production integrated lifting device for offshore heavy oil thermal recovery wells. The device is arranged in the casing and includes a cable packer 1, a seat joint 2, a production sliding sleeve 3, and a production casing 4. Hydraulic control pipeline 5, power pipe 6, heat insulation oil pipe 7, drain valve 8, high temperature downhole docking device 9, upper cylinder body 10, reciprocating plunger 11, positioning seal 12, working cylinder 13, traveling valve 14 , Lower cylinder 15, fixed valve 16, steel pipe cable 17, pressure / temperature measurement device 18, high temperature deep well safety valve 19, top packer 20, sand control section 21.
[0045] The production casing 3 is provided with a heat-insulated oil pipe 7, the annular space between the heat-insulated oil pipe 7 and the production casing 3 is installed with a cable packer 1, and the heat-insulated oil p...
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