CN204041049U - The hydrocyclone downhole oil-water separation device of drive revolving vane - Google Patents

Abstract

A hydrocyclone downhole oil-water separation device for drive revolving vane, tangential direction mouth is by communicating with oil-producing formation after the tube wall of production string; The top of central axis flowline is stretched out hydrocyclone and above oil reservoir packer, is provided with oil-out and is communicated with the suction chamber of oil extraction pump; Hydrocyclone, revolving vane, central axis flowline are coaxially arranged; The tube wall of the production string between oil-water-layer packer with water layer packer has the water filling port being communicated with water filling target zone, the bottom cone of hydrocyclone is communicated with cyclone outlet pipe, the water outlet of cyclone outlet pipe downwards after the broken husky pump assembly pressurization of underground water-injection, by injecting water filling target zone through water filling port again after injection well downhole flow regulator.The utility model is before by oil extraction oil well, and first oil reservoir fluid carries out water-oil separating in down-hole, is directly recycled into water filling target zone with isolated water, goes out outside well by remaining low wet oil extraction; Greatly reduce cost of winning.

Description

The hydrocyclone downhole oil-water separation device of drive revolving vane

Technical field

The utility model relates to technical field of oil extraction equipment, especially relates to a kind of oil well water-oil separating water filling device with rotating oar cyclone pipe.

Background technology

In oil exploitation industry, oily and water always association in underground.Meanwhile, in existing oil exploitation technology, usually need to underground high-voltage reinjected water, the water filling realizing oil reservoir drives exploitation.In existing oil recovery technique, by outside profit together extraction well, and then carry out the process of water-oil separating; Simultaneously other to underground injection water under high pressure again, cause the cost of winning of oil significantly to rise like this.

Utility model content

The purpose of this utility model is the hydrocyclone downhole oil-water separation device designing a kind of novel drive revolving vane, solves the problem.

To achieve these goals, the technical solution adopted in the utility model is as follows:

A hydrocyclone downhole oil-water separation device for drive revolving vane, comprises production string, hydrocyclone, revolving vane, central axis flowline, power set, cyclone outlet pipe, the broken husky pump assembly of underground water-injection, injection well downhole flow regulator, oil reservoir packer, oil-water-layer packer and water layer packer;

Described hydrocyclone, described cyclone outlet pipe, the broken husky pump assembly of described underground water-injection and described injection well downhole flow regulator are arranged within described production string, described hydrocyclone is between described oil reservoir packer and described oil-water-layer packer, and described injection well downhole flow regulator is between described oil-water-layer packer and described water layer packer;

Described hydrocyclone comprises top cylindrical shell and bottom cone composition, the wall of described top cylindrical shell is provided with tangential direction mouth, described tangential direction mouth is by communicating with oil-producing formation after the tube wall of described production string, the centre of described top cylindrical shell arranges described revolving vane, the central axis of described revolving vane is that hollow circular tube forms central axis flowline, and the top of described central axis is stretched out described hydrocyclone and is connected with power set; The shaft core position of bottom end opening below described revolving vane of described central axis flowline, the top of described central axis flowline is stretched out described hydrocyclone and be provided with oil-out above described oil reservoir packer and is communicated with the suction chamber of described oil extraction pump; Described hydrocyclone, described revolving vane, described central axis flowline are coaxially arranged; Described revolving vane and described central axis flowline rotate under the drive of power set;

The tube wall of the described production string between described oil-water-layer packer with described water layer packer has the water filling port being communicated with water filling target zone, the bottom cone of described hydrocyclone is communicated with described cyclone outlet pipe, the water outlet of described cyclone outlet pipe downwards after the broken husky pump assembly pressurization of described underground water-injection, by injecting described water filling target zone through described water filling port again after described injection well downhole flow regulator.

The cone angle of the bottom cone of described hydrocyclone is 5 °-25 °.

Principle of the present utility model is as follows:

Oil reservoir mixed liquor tangentially enters the top cylindrical shell of hydrocyclone, and accelerate to rotate under the drive of revolving vane, the crude oil of light phase is gathered near axis of rotation, enters oil extraction pump suction chamber under the differential pressure action in oil extraction pump suction chamber and described hydrocyclone; Mixed liquor accelerates to rotate in the Taper Pipe section (namely in the cone of bottom) of described hydrocyclone, due to the density contrast of profit, profit is separated further, oil is inhaled into central axis flowline, water and silt due to density larger, enter the broken husky pump general name of water filling downwards, after pressurization, inject water filling target zone through injection well downhole flow regulator.

The beneficial effects of the utility model can be summarized as follows:

1, the utility model is before by oil extraction oil well, and first oil reservoir fluid carries out water-oil separating in down-hole, is directly recycled into water filling target zone with isolated water, goes out outside well by remaining low wet oil extraction; Greatly reduce cost of winning.

2, enforcement of the present utility model makes Separation of Water avoid sudden and violent oxygen, miscellaneous bacteria infection risk, alleviates the corrosion failure of Separation of Water to ground processing facility, decreases the outer discharge capacity of recovered water, alleviate environment pollution.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Detailed description of the invention

The technical problem solved to make the utility model, technical scheme and beneficial effect are clearly understood, below in conjunction with drawings and Examples, are further elaborated to the utility model.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.

The hydrocyclone downhole oil-water separation device of a kind of drive revolving vane 3 as shown in Figure 1, comprises production string 1, hydrocyclone 2, revolving vane 3, central axis flowline 4, power set 5, cyclone outlet pipe 6, the broken husky pump assembly 7 of underground water-injection, injection well downhole flow regulator 8, oil reservoir packer 9, oil-water-layer packer 10 and water layer packer 11; The broken husky pump assembly 7 of described hydrocyclone 2, described cyclone outlet pipe 6, described underground water-injection and described injection well downhole flow regulator 8 are arranged within described production string 1, described hydrocyclone 2 is between described oil reservoir packer 9 and described oil-water-layer packer 10, and described injection well downhole flow regulator 8 is between described oil-water-layer packer 10 and described water layer packer 11; Described hydrocyclone 2 comprises top cylindrical shell 12 and bottom cone 13 forms, the wall of described top cylindrical shell 12 is provided with tangential direction mouth 14, described tangential direction mouth 14 is by communicating with oil-producing formation 15 after the tube wall of described production string 1, the centre of described top cylindrical shell 12 arranges described revolving vane 3, the central axis of described revolving vane 3 is that hollow circular tube forms central axis flowline 4, and the top of described central axis is stretched out described hydrocyclone 2 and is connected with power set 5; The shaft core position of bottom end opening below described revolving vane 3 of described central axis flowline 4, the top of described central axis flowline 4 is stretched out described hydrocyclone 2 and above described oil reservoir packer 9, is provided with oil-out 16 and is communicated with the suction chamber 17 of described oil extraction pump; Described hydrocyclone 2, described revolving vane 3, described central axis flowline 4 are coaxially arranged; Described revolving vane 3 and described central axis flowline 4 rotate under the drive of power set 5; The tube wall of the described production string 1 between described oil-water-layer packer 10 with described water layer packer 11 has the water filling port 19 being communicated with water filling target zone 18, the bottom cone 13 of described hydrocyclone 2 is communicated with described cyclone outlet pipe 6, the water outlet of described cyclone outlet pipe 6 downwards after the broken husky pump assembly 7 of described underground water-injection pressurizes, by injecting described water filling target zone 18 through described water filling port 19 again after described injection well downhole flow regulator 8.

In the embodiment be more preferably, the cone angle of the bottom cone 13 of described hydrocyclone 2 is 5 °-25 °.

Before use, the oil reservoir perforating site bottom oil well will be entered under described hydraulic cyclone pipe, by between described oil reservoir packer 9, described oil-water-layer packer 10 and the segmentation of described water layer packer 11 fixing, form oil extraction pump suction chamber 17 spaced apart from each other, cyclone pipe oil suction chamber 20 simultaneously and inject chamber 21, the tangential oil-in of described hydrocyclone 2 communicates with the oil-out of cyclone pipe oil suction chamber 20 and oil reservoir; The oil-out of described hydraulic cyclone pipe communicates with oil extraction pump suction chamber 17; Delivery port and the water filling target zone 18 of described injection chamber and the broken husky assembly of underground water-injection pump communicate; Start described oil extraction pump, the wet crude in described oil reservoir enters described cyclone pipe oil suction chamber through the oil-out of oil reservoir, then enters described tangential oil-in and enter and carry out water-oil separating in described hydrocyclone 2.Enter the wet crude of described hydraulic cyclone pipe, under the drive of described revolving vane 3, form whirlpool, under gravitational and centrifugal forces, profit starts to be separated; Low-density oil upwards, to center is assembled, and finally enters oil extraction pump suction chamber 17 from the described central axis flowline 4 of the top center being positioned at described hydraulic cyclone pipe by the oil-out on pipe top; Highdensity water is to surrounding, assemble downwards, finally enter after the broken husky pump assembly 7 of described underground water-injection boosts from the described cyclone outlet pipe 6 being arranged in described eddy flow Taper Pipe (i.e. bottom cone 13) bottom and inject chamber 21, then inject described water filling target zone 18 through injection well downhole flow regulator 8.

The water-oil separating of wet crude in down-hole that above process implementation oil reservoir flows out, and the water that will obtain, direct weighting injects water filling layer, significantly improves oil recovery business efficiency.

The utility model is described in detail in preferred embodiment above by concrete; but those skilled in the art should be understood that; the utility model is not limited to the above embodiment; all within spirit of the present utility model and principle; any amendment of doing, equivalent replacement etc., all should be included within protection domain of the present utility model.

Claims (2)

1. a hydrocyclone downhole oil-water separation device for drive revolving vane, is characterized in that: comprise production string, hydrocyclone, revolving vane, central axis flowline, power set, cyclone outlet pipe, the broken husky pump assembly of underground water-injection, injection well downhole flow regulator, oil reservoir packer, oil-water-layer packer and water layer packer;

Described hydrocyclone, described cyclone outlet pipe, the broken husky pump assembly of described underground water-injection and described injection well downhole flow regulator are arranged within described production string, described hydrocyclone is between described oil reservoir packer and described oil-water-layer packer, and described injection well downhole flow regulator is between described oil-water-layer packer and described water layer packer;

Described hydrocyclone comprises top cylindrical shell and bottom cone composition, the wall of described top cylindrical shell is provided with tangential direction mouth, described tangential direction mouth is by communicating with oil-producing formation after the tube wall of described production string, the centre of described top cylindrical shell arranges described revolving vane, the central axis of described revolving vane is that hollow circular tube forms central axis flowline, and the top of described central axis is stretched out described hydrocyclone and is connected with power set; The shaft core position of bottom end opening below described revolving vane of described central axis flowline, the top of described central axis flowline is stretched out described hydrocyclone and be provided with oil-out above described oil reservoir packer and is communicated with the suction chamber of oil extraction pump; Described hydrocyclone, described revolving vane, described central axis flowline are coaxially arranged; Described revolving vane and described central axis flowline rotate under the drive of power set;

The tube wall of the described production string between described oil-water-layer packer with described water layer packer has the water filling port being communicated with water filling target zone, the bottom cone of described hydrocyclone is communicated with described cyclone outlet pipe, the water outlet of described cyclone outlet pipe downwards after the broken husky pump assembly pressurization of described underground water-injection, by injecting described water filling target zone through described water filling port again after described injection well downhole flow regulator.

2. the hydrocyclone downhole oil-water separation device of drive revolving vane according to claim 1, is characterized in that: the cone angle of the bottom cone of described hydrocyclone is 5 °-25 °.