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Integrated device and method for continuous on-line production and injection of flow regulating agent particles

A technology of flow regulating agent and granules, which is applied in chemical instruments and methods, mixers with rotating stirring devices, earth drilling and mining, etc. It can solve the problems that flow regulating agent particles cannot be produced online, the construction volume is large, and the process is cumbersome. Achieve the effect of simple structure, small construction amount and simple process

Active Publication Date: 2019-12-10
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a flow-regulating agent particle continuous flow-regulating agent particle in order to overcome the technical problems existing in the prior art that cannot be produced and injected online, the process is cumbersome, the construction volume is large, special equipment is required, and the cost is high. The method and device for the integration of online production and injection realize the integration of online production and injection of flow regulating agent particles, and can continuously produce flow regulating agent particles online and inject flow regulating agent particles into water injection wells online

Method used

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  • Integrated device and method for continuous on-line production and injection of flow regulating agent particles
  • Integrated device and method for continuous on-line production and injection of flow regulating agent particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] This implementation is used to illustrate the integrated device for continuous on-line production and injection of flow regulator particles.

[0095] Continuous online production and injection of flow regulating agent particles integrated device, including mixing mixer 1, feeder 2 is a screw automatic feeder, extruder 3 is a twin-screw extruder, and screen changer 4 is an online screen changer , melt valve 5, granulator 6, water injection unit 7, plunger pump 8, pour flow modifier particle raw material into stirring mixer 1 and stir and mix; start twin-screw extruder, twin-screw extruder Preheat the temperature to near the melting point of the viscoelastic main agent; open the outlet valve of the mixing mixer 1, and feed the material to the twin-screw extruder at a set rate from the screw automatic feeder; the raw material of the flow regulator particles is extruded through the twin-screw After high-temperature mixing in the machine, it is extruded through an online scr...

Embodiment 2

[0097] This implementation is used to illustrate the method for continuous on-line production and injection of flow regulating agent particles using the device described in Example 1.

[0098] (S1) Get 70 parts by weight of polystyrene, 20 parts by weight of C9 petroleum resin, 2 parts by weight of artificial chopped fiber, 3 parts by weight of fly ash, and 5 parts by weight of cross-linked carboxymethyl cellulose, and add them to the stirring mixer , start the agitator mixer for full mixing;

[0099] (S2) Preheat the twin-screw extruder to 180°C, start the twin-screw extruder; open the outlet of the mixing mixer, start the screw automatic feeder, 3 Feed to the twin-screw extruder at a rate of / h; the mesh size of the online screen changer is 3.0mm. For flow regulating agent particles of about 3.0 mm, the injection volume of injection water in the granulator is such that the mass ratio of flow regulating agent particles obtained after underwater shear granulation to the injec...

Embodiment 3

[0101] This implementation is used to illustrate the method for continuous on-line production and injection of flow regulating agent particles using the device described in Example 1.

[0102] Adopt the method of embodiment 2 to carry out continuous on-line production and injection of flow regulating agent particles, the difference is that (1) the mesh size of the online screen changer is 5.0mm, the particle diameter of flow regulating agent particles is 5.0mm, (2) close Open the safety valve between the granulator and the water injection unit, open the safety valve between the granulator and the plunger pump, the plunger pump and the water injection unit, and start the plunger pump. Various properties of the flow regulator particles were measured, and the results are shown in Table 1.

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Abstract

The invention relates to the field of petroleum development, and discloses an integrated device for continuous on-line production and injection of flow regulating agent particles. The device comprises a stirring mixer (1), an extruder (3), a pelletizer (6) and a water injection unit (7). Also disclosed is a continuous on-line production and injection integration method of flow regulating agent particles, the method includes raw material mixing, blending extrusion, underwater shear granulation, and realizes the integration of flow regulating agent particle production and injection, While injecting the flow-regulating agent particles into the water injection well, the preparation of the flow-regulating agent particles is carried out at the same time, that is, the production is injected, which greatly shortens the production and injection time of the flow-regulating agent, and can meet the needs of large-scale flow regulation in multiple well groups or regions.

Description

technical field [0001] The invention belongs to the field of petroleum development, and in particular relates to an integrated device for continuous on-line production and injection of flow regulating agent particles and a method thereof. Background technique [0002] Carbonate fracture-vuggy and fractured reservoirs are relatively abundant in western my country, which is one of the important fields for increasing oil reserves and production. Carbonate fracture-vuggy and fractured reservoirs are quite different from conventional sandstone reservoirs. The fractures are the main communication channels, the fractures are large in size, the spatial distribution is complex, and the heterogeneity is extremely strong. In addition, the formation conditions of the reservoir are extremely harsh, the reservoir is buried ultra-deep (well depth > 5000m), and the temperature is ultra-high temperature (temperature > 120°C). The EOR of cave-type reservoirs is low (<20%). [0003]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/13B01F7/16B01F15/02C09K8/42B29B9/06
CPCE21B33/13C09K8/426B29B9/065B01F27/80B01F35/75455
Inventor 戴彩丽方吉超焦保雷巫光胜何龙柏森赵光刘逸飞
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)