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Oil field wellhead device with automatic chemical adding mechanism

A technology of automatic dosing and wellhead devices, which is applied in the direction of wellbore/well components, production fluid, earthwork drilling and production, etc. It can solve the problems of no dosing mechanism, time-consuming and laborious operation, and inability to do automatic dosing, etc. To achieve the effect of improving the operation effect and operation efficiency, and the operation is simple

Inactive Publication Date: 2021-08-06
东营浩辰石油技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a kind of oilfield wellhead device with automatic dosing mechanism, rotate through the stirring plate, the resistance of the colloidal mixture in the oil well applies pressure to the pressure sensor through the movable plate, and the pressure sensor detects the received pressure, The viscosity of the colloidal mixture is judged by the pressure received. By moving the piston up and down, the drug solution in the drug storage chamber enters the drug outlet cavity through the drug inlet tube, and the drug output tube outputs the drug solution. Realize automatic dosing without manual dosing, save time and effort in operation, solve the problem that existing oilfield wellhead devices do not have a dosing mechanism and cannot automatically do dosing, and manual viscosity detection and manual dosing are required. time consuming problem

Method used

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  • Oil field wellhead device with automatic chemical adding mechanism
  • Oil field wellhead device with automatic chemical adding mechanism
  • Oil field wellhead device with automatic chemical adding mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as Figure 1-6 As shown, the present invention proposes an oilfield wellhead device with an automatic dosing mechanism, comprising a medicine storage tank body 1, a wellhead casing 2, a medicine storage chamber 3 and a dosing pipe joint 12, and the wellhead casing 2 is fixedly installed At the wellhead of the oilfield, the medicine storage tank body 1 is fixedly installed on the wellhead casing 2 by bolts and extends into the oilfield wellhead. The inside of the medicine storage tank body 1 is provided with a medicine storage chamber 3, which stores medicine The dosing pipe joint 12 is arranged on the medicine storage tank body 1 and communicates with the medicine storage chamber 3. The medicine dosing pipe joint 12 is used to connect the dosing pipe, and the medicine liquid is added to the medicine storage chamber 3 through the dosing pipe. The drug storage tank body 1 is provided with a medicine discharge chamber 4, and a piston 8 is slidably arranged in the medi...

Embodiment 2

[0037] Such as Figure 5 As shown, this embodiment is basically the same as Embodiment 1. Preferably, multiple sets of second guide rods 46 are fixedly installed in the groove 41 by bolts, and the movable plate 43 is slidably connected with the second guide rods 46, and the movable plate 43 is along the The second guide rod 46 slides; the second guide rod 46 is sleeved with a second spring 47, the second spring 47 is a compression spring, the second spring 47 connects the movable plate 43 and the stirring plate 39, and the movable plate 43 is pressed and constantly squeezed. Press the second spring 47, and the second spring 47 plays a buffering role, which helps to avoid quickly hitting the pressure sensor 44 and causing damage to it; the side of the movable plate 43 facing the pressure sensor 44 is fixed with an extruding ball 45 by bolts, When the movable plate 43 slides in the groove 41, it drives the extrusion ball 45 to move, and the extrusion ball 45 squeezes the pressur...

Embodiment 3

[0039] Such as Figure 7-8 As shown, this embodiment is basically the same as Embodiment 1. Preferably, a drug infusion channel 35 is vertically opened in the rotating column 15, and the drug infusion channel 35 transports the drug liquid, and the bottom of the drug storage tank body 1 is fixed by bolts. A medicine collection box 33 is installed, and the other end of the medicine discharge pipe 11 communicates with the medicine collection box 33, and the medicine discharge pipe 11 transports the medicine liquid to the medicine collection box 33, and the medicine collection box 33 collects the medicine liquid; the rotating column 15 runs through The drug collecting box 33, and the rotating column 15 is provided with a drug inlet 34 connecting the drug collecting box 33 and the drug delivery channel 35, and the drug solution enters the drug delivery channel 35 through the drug inlet 34; the rotating column 15 is close to one end of the stirring plate 39 There is a drug discharge...

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Abstract

The invention belongs to the technical field of oil extraction equipment for oil fields, particularly relates to an oil field wellhead device with an automatic chemical adding mechanism, and aims to solve the problems that an existing oil field wellhead device is not provided with the chemical adding mechanism, cannot perform chemical adding automatically, can only perform manual viscosity detection and manual chemical adding, and is time-consuming and labor-consuming in operation. The oil field wellhead device with the automatic chemical adding mechanism comprises a chemical storage tank body; a chemical storage cavity is formed in the chemical storage tank body; a chemical feeding pipe joint is arranged on the chemical storage tank body and communicates with the chemical storage cavity; a chemical outlet cavity is formed in the chemical storage tank body; a piston is arranged in the chemical outlet cavity in a sliding mode; a chemical inlet pipe communicating with the chemical storage cavity and the chemical outlet cavity is installed on the chemical storage tank body; a chemical outlet pipe communicating with the chemical outlet cavity is installed on the chemical storage tank body; and one-way valves are arranged on the chemical inlet pipe and the chemical outlet pipe. According to the invention, the viscosity degree of a colloidal mixture is judged according to the magnitude of received pressure; and by enabling the piston to move up and down, the chemical outlet pipe outputs chemical liquid, so that automatic chemical adding is achieved, manual chemical adding is not needed, and the operation is time-saving and labor-saving.

Description

technical field [0001] The invention relates to the technical field of oil production equipment in oilfields, in particular to an oilfield wellhead device with an automatic dosing mechanism. Background technique [0002] An oil well is a hole drilled according to the well layout system of the oil field development plan for the exploitation of oil. It is a channel for oil to rise from the bottom of the well to the well head. Oil well cement is injected into the annular space between the walls to maintain the well wall and seal the oil, gas, and water layers. Then, according to the requirements of oil field development, the oil layer is shot with a perforating gun to form a channel, and the tubing is lowered. Oil rises from the bottom of the well to the head of the well; [0003] With the prolongation of oil field development time, affected by oil well pressure, temperature and other parameters, colloidal asphalt will continue to precipitate, and the viscosity of crude oil wi...

Claims

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Application Information

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IPC IPC(8): E21B33/03E21B43/22
CPCE21B33/03E21B43/16
Inventor 程玉臻
Owner 东营浩辰石油技术开发有限公司
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