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Device for dynamically monitoring water supplementing effect of water curtain in large underground water sealing stone cavern

A dynamic monitoring and groundwater technology, applied in the direction of measuring devices, test water, suspension and porous material analysis, etc., can solve problems such as waste and pollution, and achieve the effect of early warning and forecasting

Inactive Publication Date: 2019-02-22
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The underground water-sealed cavern requires a large amount of seepage water from the formation and artificial water replenishment to maintain the tightness of the cavern to crude oil, and a large amount of water will be produced tomorrow, and the discharge of this water will cause pollution and waste, so mining is often used. Reinjection of effluent, but whether the quality of reinjection water meets the requirements of reinjection needs to be studied, and experimental devices and test methods in this area are urgently needed

Method used

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  • Device for dynamically monitoring water supplementing effect of water curtain in large underground water sealing stone cavern
  • Device for dynamically monitoring water supplementing effect of water curtain in large underground water sealing stone cavern
  • Device for dynamically monitoring water supplementing effect of water curtain in large underground water sealing stone cavern

Examples

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Effect test

Embodiment 1

[0023] see Figure 1-6 As shown, a device for dynamically monitoring the water curtain water replenishment effect of a large-scale underground water-sealed rock cavern includes an experimental container 7, and support plates 15 are arranged on both sides of the experimental container 7, and a cracked rock mass 8 is arranged between the support plates 15. The rock mass 8 is sequentially provided with water delivery holes 26, water curtain holes 25, and water-sealed oil holes 23 from top to bottom. Split hole 30, the inner surface of split hole 30 is provided with a convex spherical surface 32 that is convex to the central axis, the upper end of water-sealed oil hole 23 is provided with a water inlet 33 connected to the external constant pressure liquid supply pump, and the middle and lower end of water-sealed oil hole 23 is provided with Drain 34. The invention can simulate the water curtain system of a large-scale crude oil water-sealed rock cavern, and through the water deli...

Embodiment 2

[0032] The above-mentioned cavern sealing plate 5 is made of metal, and the surface is coated with an anti-corrosion layer. The anti-corrosion coating is composed of the following components and parts by weight: 40-50 parts of acrylic / epoxy resin primer, 0.02-1 part of nano-titanium dioxide polymer , 5-15 parts of silicon-aluminum-based vitrified microspheres, 1-5 parts of xylene, 90-95 parts of silicone polyurethane resin paint / perchlorethylene anti-corrosion varnish, 5-10 parts of epoxy resin primer, 1-5 parts of silica sol 6 parts, 1-3 parts of cobalt nitrate, 1-3 parts of cerium nitrate, this coating can effectively protect against harsh environments such as salt spray, humidity, acid and alkali, high and low temperature impact, etc. The added nano-titanium dioxide polymer has good Anti-corrosion performance, and belongs to nano-scale materials, uniform coating, can fill very small structural holes, as an anti-corrosion coating, it can have a good bonding force with the met...

Embodiment 3

[0035] The working principle of a device for dynamically monitoring the water curtain replenishment effect of a large-scale underground water-sealed stone cave reservoir of the present invention is as follows: the cracked rock mass 8 is placed in the experimental container 7, and the oil delivery tank 19 injects oil into the water-sealed petroleum cavern 23 through the oil delivery pipe 20, and the water The curtain hole water delivery barrel 17 injects water into the water curtain hole 25 through the water delivery pipe 16, and the water curtain hole 23 transports water to the surrounding of the water-sealed oil hole 23 through the cracks of the cracked rock mass 8, and then increases the water pressure above and below the water-sealed oil hole 23 At the same time, the pressure control valve 21 is adjusted by the computer to adjust the oil inlet pressure and the water inlet pressure, so that the water outlet pressure and the oil pressure in the water-sealed oil hole 23 are anal...

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Abstract

The invention discloses a device for dynamically monitoring a water supplementing effect of a water curtain in a large underground water sealing stone cavern. The device comprises an experiment container, wherein support plates are arranged on two sides in the experiment container, a jointed rock mass is arranged between the support plates, the jointed rock mass is successively provided with a water delivery hole, a water curtain hole and a water sealing petroleum hole from top to bottom, criss-cross division plates are uniformly arranged in the water sealing petroleum hole, the division plates are provided with flow splitting holes, the inner surfaces of the flow splitting holes are provided with convex spherical surfaces which are bulged towards central axes, the upper end of the water sealing petroleum hole is provided with a water inlet connected with an outer constant pressure liquid supplying pump, and the lower end in the water sealing petroleum hole is provided with a water outlet. By uniformly arranging the criss-cross division plates in the water sealing petroleum hole, arranging the flow splitting holes in the division plates and arranging the convex spherical surfaces,which are bulged towards the central axes, on the inner surfaces of the flow splitting holes, the flow velocity of liquid can be changed when the liquid gets in and out of the flow splitting holes, and the influence on cavern stone permeability is detected under the circumstance that the seepage velocities are different when water is injected back.

Description

technical field [0001] The invention belongs to an oil and gas storage and transportation project, and in particular relates to a device for dynamically monitoring the water replenishment effect of a large-scale underground water-sealed rock cave reservoir. Background technique [0002] With the rapid development of China's economy, the demand for oil is increasing day by day. For China, strategic oil reserves play a very important role in ensuring national security and sustainable development of the national economy. Underground water-sealed caverns have the advantages of safety, economy, high efficiency, and large storage capacity. Therefore, they have been greatly developed in recent decades and are widely used in national strategic petroleum reserves. The underground water-sealed cavern requires a large amount of seepage water from the formation and artificial water replenishment to maintain the tightness of the cavern to crude oil, and a large amount of water will be p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08G01N33/18
CPCG01N15/082G01N33/18
Inventor 赵东锋殷丹丹朱根民竺柏康高建丰
Owner ZHEJIANG OCEAN UNIV