Operation device for stripping sucker rod at pressure
A technology for operating devices and sucker rods, which is applied in the direction of drill pipes, cleaning equipment, and mining fluids, and can solve problems such as formation pressure drop, affecting oil production rate, and hurting people with fire and poisonous gas
Active Publication Date: 2013-09-04
盐城市金巨石油机械制造有限公司
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
The first type of direct spraying will not only cause a drop in formation pressure and affect future oil production rates, but also pose a series of safety hazards such as fires, ground pollution, and poisonous gas injuries.
Although the second method of killing the well can eliminate blowout, if the specific gravity of the well killing fluid is too small, there is still a possibility of blowout
Due to the many specifications of downhole sucker rods, there is neither a universal blowout preventer as a guarantee; nor a universal sucker rod clamping tool; spray job causing difficulty
Method used
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Embodiment
[0019] Embodiment: the operating device for the lower sucker rod with pressure, such as figure 1 As shown, it includes a fully sealed blowout preventer 1, a sucker rod clamping device 2, a sucker rod hydraulic blowout preventer 3, a lower beam 4, a lower sleeve seat 5, a tee 6, and a sucker rod coupling detection device 7. Hydraulic blowout preventer valve 8, blowout preventer telescopic tube 9, lifting cylinder 10, middle beam 11, upper beam 12, upper sleeve seat 13, sucker rod clamping device 14, sucker rod hydraulic blowout preventer 15 and oil wiper 16, two lifting oil cylinders 10 are fixed on the lower crossbeam 4 and the middle crossbeam 11, and the center of the lower crossbeam 4 is fixedly equipped with a lower sleeve 5, and the lower end of the lower sleeve 5 is sequentially connected with a sucker rod hydraulic protection Injector 3, sucker rod clamping device 2 and fully sealed blowout preventer 1, lower casing 5, sucker rod hydraulic blowout preventer 3, sucker ro...
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The invention discloses an operation device of stripping a sucker rod at the pressure, comprising a fully-sealed blowout preventer, a sucker rod clamping device, a sucker rod blowout preventer, a hydraulic blow-off valve, a blowout-preventing extension tube, a lifting oil cylinder and an oil wiper, wherein the fully-sealed blowout preventer, the sucker rod clamping device, the sucker rod blowout preventer and the lifting oil cylinder are controlled by a hydraulic control system. No matter whether the pressure exists underground or not, the device can solve the problems of reducing and blowout prevention of the sucker rod, reducing diameter and clamping, positioning detection of a coupling or a centralizer and oil wiping, realize the pump detection at the pressure under the conditions of not killing well and blowing off and provide the guarantee for the operation device to strip the sucker rod at the pressure.
Description
technical field [0001] The invention relates to an oil well inspection pump operation process equipment, in particular to an operation equipment for lifting and lowering a sucker rod with pressure. Background technique [0002] During the pumping process of the pumping unit, when there is no oil output or insufficient oil output, it indicates that the suction device has failed, and the wellhead must be opened immediately, and the sucker rod must be pulled out for inspection, commonly known as pump inspection. If there is no pressure display on the wellhead pressure gauge, and there is no kick phenomenon when the wellhead is opened (commonly known as blowout precursor), you can directly pull out the sucker rod according to the conventional operation method; Corresponding work measures must be taken. At present, there are two kinds of operation measures: the first one is to directly release the spray, and then perform the pump inspection operation after release to no pressure...
Claims
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IPC IPC(8): E21B17/00E21B43/00E21B19/10E21B33/06E21B37/02
Inventor 李呈祥杜红缪建丁曙东
Owner 盐城市金巨石油机械制造有限公司