Wellhead filling device for thick oil viscosity reducer
A technology of thick oil viscosity reducer and filling device, which is applied in the direction of wellbore/well components, production fluid, earthwork drilling and production, etc. It can solve the problems of large waste, hanging on the pipe wall, low efficiency, etc., and achieve the improvement effect , the effect of reducing loss
Active Publication Date: 2022-05-20
安塞海翔工贸有限责任公司
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Problems solved by technology
[0007] The existing technology of injecting crude oil viscosity reducer into crude oil usually adopts relatively simple direct injection. This method has two disadvantages. First, the crude oil viscosity reducer will be concentrated on the upper side of the crude oil and needs to be gradually diffused downward, which is inefficient. Second, the viscosity reducer will inevitably hang on the pipe wall. If the length of the pipe wall is relatively deep, the waste will be large. Therefore, the present invention proposes a capsule-type viscosity reducer delivery method to solve the above problems
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[0030] Combine below Figure 1-5 The present invention is described in detail, wherein, for the convenience of description, the orientations mentioned below are defined as follows: figure 1 The up, down, left, right, front and back directions of the projection relationship itself are the same.
[0031] combined with Figure 1-5 The wellhead filling device for a thick oil viscosity reducer comprises a capsule body 11, a capsule chamber 12 is provided in the capsule body 11, a capsule outlet 13 is connected to the upper side of the capsule chamber 12, and the capsule chamber 12 There are two groups of cooling bodies 20 inside, and the cooling body 20 is provided with a hemispherical cavity. The two groups of cooling bodies 20 are close to each other to form a spherical groove 22. A central tube 25 distributed longitudinally is arranged inside, and a first elastic membrane 26 is arranged on the outside of the central tube 25, and a first cavity 37 is formed by sealing between t...
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The invention relates to the technical field of oil exploitation, and discloses a thickened oil viscosity reducer wellhead filling device which comprises a capsule making body, a capsule making cavity is formed in the capsule making body, the upper side of the capsule making cavity is communicated with a capsule outlet, two sets of cooling bodies are arranged in the capsule making cavity, the cooling bodies are provided with hemispherical cavities, and the hemispherical cavities are communicated with the capsule outlet. The two sets of cooling bodies are close to each other and abut against each other to form a spherical groove, the upper side of the spherical groove is communicated with the outside and provided with a retreating opening, a longitudinally-distributed center pipe is arranged in the spherical groove, and a first elastic film is arranged on the outer side of the center pipe. A spherical shell space is formed between the expanded first elastic film and the spherical groove wall body, water is filled into the space and cooled to form a spherical shell, the viscosity reducer is filled into the spherical shell to form a capsule for transportation, the viscosity reducer wrapped by the ice shell cannot adhere to the pipe wall when falling in a pipeline, and loss is reduced.
Description
technical field [0001] The invention relates to the technical field of petroleum exploitation, in particular to a wellhead filling device for a heavy oil viscosity reducer. Background technique [0002] As the temperature decreases, the viscosity of crude oil increases greatly, which is not conducive to flow and is difficult to mine. Crude oil viscosity reducer is used to reduce the interfacial tension of oil and water, so that the heavy oil in the formation changes from the emulsified state of water in oil to the external phase of water The emulsified state of the heavy oil greatly reduces the viscosity of the heavy oil and significantly increases the recovery factor. [0003] CN103132951A discloses a high-pressure wellhead continuous dosing device, which includes a plunger pump fixed to the wellhead through a pump fixing cylinder (10) and a bracket, and a casing dosing head (7) arranged on the high-pressure wellhead casing. The plunger pump is communicated with the dosing...
Claims
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IPC IPC(8): E21B43/22
CPCE21B43/16
Inventor 刘达
Owner 安塞海翔工贸有限责任公司