CN106499379A - A kind of hydrate slurry bromhidrosis sand piece-rate system - Google Patents

A kind of hydrate slurry bromhidrosis sand piece-rate system Download PDF

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Publication number
CN106499379A
CN106499379A CN201610990054.6A CN201610990054A CN106499379A CN 106499379 A CN106499379 A CN 106499379A CN 201610990054 A CN201610990054 A CN 201610990054A CN 106499379 A CN106499379 A CN 106499379A
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China
Prior art keywords
silt
outlet
gas
section
pipeline section
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CN201610990054.6A
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CN106499379B (en
Inventor
伍开松
贾玉丹
赵金洲
董辉
周守为
李清平
代茂林
张弭
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Southwest Petroleum University
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Southwest Petroleum University
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/34Arrangements for separating materials produced by the well
    • E21B43/36Underwater separating arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D19/00Degasification of liquids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/26Separation of sediment aided by centrifugal force or centripetal force
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0099Equipment or details not covered by groups E21B15/00 - E21B40/00 specially adapted for drilling for or production of natural hydrate or clathrate gas reservoirs; Drilling through or monitoring of formations containing gas hydrates or clathrates
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations

Abstract

The present invention relates to a kind of hydrate slurry bromhidrosis sand piece-rate system, including gas isolated subsystem and silt isolated subsystem, the entrance of gas isolated subsystem is connected with the outlet of multiphase mixture slurry storage tank, the gaseous phase outlet of gas isolated subsystem is connected with air accumulator, the non-gaseous outlet of gas isolated subsystem is connected with the entrance of silt isolated subsystem, the silt outlet of silt isolated subsystem is connected with the entrance of silt pumping installations, the outlet of silt pumping installations is connected with sand tank, the water of silt isolated subsystem and hydrate outlet are connected with water and hydrate slurry storage tank, gas isolated subsystem includes that at least one-level gas separates arcuate limb tubular construction, silt isolated subsystem includes at least one-level silt isolating construction.It is an advantage of the current invention that:Separation efficiency is high, simple structure and be difficult husky stifled, gas isolating construction sum of series silt isolating construction series, can require be adjusted according to gas and silt separation efficiency.

Description

A kind of hydrate slurry bromhidrosis-sand piece-rate system
Technical field
The present invention relates to the gas of sea bottom hydrate slurry is separated and solid phase silt separation technology field, particularly a kind of water Compound slurry gas-sand piece-rate system.
Background technology
Gas hydrates possess the advantages of energy density is high, resource reserve is big, and the exploration of hydrate and exploitation become The study hotspot of scientific circles.Existing sea-bottom natural gas exploitation is mostly using hot exploitation, blood pressure lowering exploitation, chemical injection exploitation, CO2 The routine recovery method such as replacement exploitation, but the exploitation for the non-diagenesis hydrate layer in seabed, these conventional recovery methods are all deposited Production efficiency is low, difficulty big, high cost the shortcomings of, and hydrate slurry is typically the multiphases such as gas and water, hydrate, sand and mixes Liquid is closed, how the gas sand in the multiphase mixed liquor that produces is separated, is to need the difficult point for overcoming badly.
Patent CN103628844A proposes " the lasting exploit methods of the non-diagenesis gas hydrates of deep seafloor shallow-layer ", should Invention gas hydrates described in digging in solid form, the solid matter containing the gas hydrates is collected simultaneously Crush as particulate matter, sea water is mixed to form gas-liquid-solid multiphase mixture stream with the particulate matter by injection;For save energy, Need efficiently to separate the gas-liquid-solid multiphase mixture slurry for being formed in seabed, to remove silt, so as to obtain Natural gas in slurry.
Patent CN 101160448A " pipe separator inlet " device belongs to gas fractionation unit, and which is structurally characterized in that general Lead to the combination of T-shaped pipe, gas separation effect can be properly increased.Patent CN 1146526A " sand controller for crude oil well end " belongs to Silt separation apparatus, its are structurally characterized in that, without special catch husky structure and Sand discharge structure, easily causes the blocking of silt, and separation of sediment effect is limited.
For this purpose, the present invention proposes one kind can improve gas and silt separation efficiency, and the knockdown height of reliable operation The gas of effect-sand piece-rate system.
Content of the invention
It is an object of the invention to overcoming the shortcoming of prior art, there is provided a kind of separation efficiency is high, simple structure and be difficult Husky stifled hydrate slurry bromhidrosis-sand piece-rate system.
The purpose of the present invention is achieved through the following technical solutions:A kind of hydrate slurry bromhidrosis-sand piece-rate system, including gas The outlet of body isolated subsystem and silt isolated subsystem, the entrance of the gas isolated subsystem and multiphase mixture slurry storage tank Connection, the gaseous phase outlet of the gas isolated subsystem are connected with air accumulator, the non-gaseous outlet of the gas isolated subsystem It is connected with the entrance of silt isolated subsystem, the silt outlet of the silt isolated subsystem is connected with the entrance of silt pumping installations Connect, the outlet of silt pumping installations is connected with sand tank, the water of the silt isolated subsystem and hydrate are exported and water and water Compound slurry storage tank connects.
The gas isolated subsystem separates arcuate limb tubular construction by least one-level gas and a discharge is constituted, gas Body is separated the gas outlet of arcuate limb tubular construction and is connected with the entrance of discharge, and the outlet of discharge is connected with air accumulator.
The gas isolated subsystem includes that three-level gas separates arcuate limb tubular construction, wherein,
First order gas separate arcuate limb tubular construction by horizontal straight tube section, transitional pipe segment A, sinking arc pipeline section A lower slope sections with And gas separates arc arm A composition, the entrance of horizontal straight tube section is connected with multiphase mixture slurry storage tank, and horizontal straight tube section goes out Mouth is connected with the entrance of transitional pipe segment A, and the gaseous phase outlet of transitional pipe segment A separates the lower end connection of arc arm A, transition with gas The non-gaseous outlet of pipeline section A is connected with sinking arc pipeline section A lower slope section entrances;
Second level gas separates arcuate limb tubular construction by arc pipeline section A upward slope sections of sinking, transitional pipe segment B, sinking arc pipeline section B Lower slope section and gas separate arc arm B compositions, and the outlet of sinking arc pipeline section A upward slope sections is connected with the entrance of transitional pipe segment B, The gaseous phase outlet of transitional pipe segment B separates the lower end connection of arc arm B, non-gaseous outlet and the sinking of transitional pipe segment B with gas Arc pipeline section B lower slope sections entrance connects;
The third level separates arcuate limb tubular construction by arc pipeline section B upward slope sections, transitional pipe segment C, transitional straight pipe and the gas of sinking Body separates arc arm C compositions, and the outlet of sinking arc pipeline section B upward slope sections is connected with the entrance of transitional pipe segment C, transitional pipe segment C Gaseous phase outlet separates the lower end connection of arc arm C, the non-gaseous outlet of transitional pipe segment C and the entrance of transitional straight pipe with gas Connection;
Gas separates the upper end of arc arm A, the upper end of gas separation arc arm B and gas and separates the upper of arc arm C End is connected with discharge respectively.
The silt isolated subsystem is by least one-level silt isolating construction and a water and hydrate slurry outlet group Into the silt outlet of silt isolating construction is connected with the entrance of silt pumping installations, the water and hydrate slurry of silt isolating construction Body outlet is connected with one end of water and hydrate slurry outlet, the other end of water and hydrate slurry outlet and water and hydration Thing slurry storage tank connects.
The silt isolated subsystem includes two-stage silt isolating construction, wherein,
First order silt isolating construction is separated spiral pipeline section A, is caught husky structure A, sand discharge branched pipe A and separate with silt by silt Spiral pipeline section B front half sections are constituted, and silt is separated the entrance of spiral pipeline section A and gone out with the non-gaseous of gas isolated subsystem Mouth connection, the exit of silt separation spiral pipeline section A is provided with catches husky structure A, catches the first outlet and sand discharge of husky structure A The upper end connection of branched pipe A, the second outlet and silt for catching husky structure A separate the entrance connection of spiral pipeline section B front half sections;
Second level silt isolating construction is separated the spiral pipeline section B second half sections, is caught husky structure B, sand discharge branched pipe B and mud by silt The husky spiral pipeline section C that separates is constituted, and silt separation spiral pipeline section B second half section exits are provided with catches husky structure B, catches sand The first outlet of structure B is connected with the upper end of sand discharge branched pipe B, and the second outlet for catching husky structure B separates spiral with silt The entrance connection of pipeline section C, silt are separated the outlet of spiral pipeline section C and are connected with water and hydrate slurry outlet.
Described catch husky structure A and include catching husky groove A and catch hourglass bucket A, catch husky groove A at fluid cross-section more than silt separation spiral Rise the fluid cross-section of pipeline section A, catch hourglass bucket A and be arranged at the lower section for catching husky groove A, and the silt of husky groove A collections will be caught by catching Hourglass bucket A streams enter in sand discharge branched pipe A.
Described catch husky structure B and include catching husky groove B and catch hourglass bucket B, catch husky groove B at fluid cross-section more than silt separation spiral Rise the fluid cross-section of pipeline section B, catch hourglass bucket B and be arranged at the lower section for catching husky groove B, and the silt of husky groove B collections will be caught by catching Hourglass bucket B streams enter in sand discharge branched pipe B.
The silt pumping installations include that pump, collection sandpipe and screw feeder, pump are pushed away installed in one end of collection sandpipe, spiral Glassware is placed in collection sandpipe, and the outfan of pump is connected with screw feeder.
The present invention has advantages below:
1st, the present invention is due to using gas isolated subsystem and silt isolated subsystem, at the same be furnished with multiphase mixture slurry storage tank, Air accumulator, sand storage tank, water and hydrate slurry storage tank and silt pumping installations etc., its structure are simpler, movement-less part, Separation efficiency is high, is difficult the features such as sand is stifled, and frictional resistance is little.
2nd, the present invention separates arc arm and sinking arc pipeline section due to employing gas in gas isolated subsystem.Due to The upward slope section of sinking arc pipeline section is used for the arrival end that gas separates arcuate limb tubular construction, is conducive to entrance pipeline section top Gas imports gas and separates arc arm;Arcuate limb tubular construction is separated as the lower slope section of sinking arc pipeline section is used for gas The port of export so that gas is not easily accessible the outlet pipe section that gas separates arcuate limb tubular construction;In addition gas separates arc arm Have and gas effect is caught than straight tube with higher, so as to improve the separation efficiency of gas, reduce gas and separate series.
3rd, the present invention separates spiral pipeline section as the inlet and outlet of silt isolated subsystem employs silt, in weight The lower silt of power effect is more easy to husky schematic capture of being caught, and improves the separation efficiency of silt.Catch to employ in husky structure and catch husky groove so that Fluid cross-section sudden enlargement at husky groove is caught, causes slurry flow velocity to reduce, silt flowing slows down, and silt is easy to settle and is captured. Catch husky structure and additionally use the structure that to catch hourglass bucket combined with husky groove is caught so that catch the silt in husky groove and will not form accumulation, So that it is smooth to catch husky and sand discharge process.
4th, gas isolating construction sum of series silt isolating construction series of the present invention, can be according to gas and silt separation efficiency Requirement is adjusted, or increases or decreases.
5 the present invention is especially suitable for sea bottom hydrate slurry gas separation separate with solid phase silt, while can also use In offshore production platform and the gas-solid-liquid three phase separation of Land petroleum well head.
6th, the present invention is can be widely used in various gas-solid-slurry body piece-rate systems, has good prospects for commercial application.
Description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the schematic diagram of the arcuate limb tubular construction of the present invention;
Fig. 3 is the schematic diagram for catching husky structure of the present invention;
In figure:1- multiphase mixture slurry storage tanks, 2- gas isolated subsystems, 201- horizontal straight tube sections, 202- transitional pipe segments A, 203- sinking arc pipeline section A, 204- transitional pipe segments B, 205- sinking arc pipeline section B, 206- transitional pipe segments C, 207- gases are separated Arc arm A, 208- gases separate arc arm B, and 209- gases separate arc arm C, 210- discharges, 3- silt segregants System, 301- silts separate spiral pipeline section A, and 302- catches husky structure A, and 302a- catches husky groove A, and 302b- catches hourglass bucket A, 303- Sand discharge branched pipe A, 304- silts separate spiral pipeline section B, and 305- catches husky structure B, 306- sand discharge branched pipe B, 307- silts Separate spiral pipeline section C, 4- transition straight lengths, 5- silt pumping installations, 501- pumps, 502- collection sandpipes, 6- sand storage tanks, 7- water With hydrate slurry outlet, 8- water and hydrate slurry storage tank, 9- air accumulators.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to following institute State.
As shown in figure 1, a kind of hydrate slurry bromhidrosis-sand piece-rate system, including gas isolated subsystem 2 and silt segregant System 3, the entrance of the gas isolated subsystem 2 are connected with the outlet of multiphase mixture slurry storage tank 1, and the gas separates subsystem The gaseous phase outlet of system 2 is connected with air accumulator 9, non-gaseous outlet and the silt isolated subsystem 3 of the gas isolated subsystem 2 Entrance connects, and the silt outlet of the silt isolated subsystem 3 is connected with the entrance of silt pumping installations 5, silt pumping installations 5 Outlet be connected with sand tank 6, the water of the silt isolated subsystem 3 and hydrate outlet and water and hydrate slurry storage tank 8 Connection.
The gas isolated subsystem 2 separates 210 groups of arcuate limb tubular construction and discharge by least one-level gas Into gas is separated the gas outlet of arcuate limb tubular construction and is connected with the entrance of discharge 210, the outlet and storage of discharge 210 Gas tank 9 connects.
Preferably, the gas isolated subsystem 2 includes that three-level gas separates arcuate limb tubular construction, wherein, the One-level gas separates arcuate limb tubular construction by horizontal straight tube section 201, transitional pipe segment A202, sinking arc pipeline section A203 lower slope sections And gas separates arc arm A207 compositions, the entrance of horizontal straight tube section 201 is connected with multiphase mixture slurry storage tank 1, level The outlet of straight length 201 is connected with the entrance of transitional pipe segment A202, and the gaseous phase outlet of transitional pipe segment A202 separates arc with gas The lower end connection of arm A207, the non-gaseous outlet of transitional pipe segment A202 are connected with sinking arc pipeline section A203 lower slope section entrances; As shown in Fig. 2 second level gas separate arcuate limb tubular construction by arc pipeline section A203 upward slope sections of sinking, transitional pipe segment B204, Sinking arc pipeline section B205 lower slope sections and gas separate arc arm B208 compositions, and sinking arc pipeline section A203 upward slope sections are exported It is connected with the entrance of transitional pipe segment B204, the gaseous phase outlet of transitional pipe segment B204 is separated the lower end of arc arm B208 and connected with gas Connect, the non-gaseous outlet of transitional pipe segment B204 is connected with sinking arc pipeline section B205 lower slope section entrances;The third level separates arc point Manifold configuration separates arc arm by arc pipeline section B205 upward slope sections of sinking, transitional pipe segment C206, transitional straight pipe 4 and gas C209 is constituted, and the outlet of sinking arc pipeline section B205 upward slope sections is connected with the entrance of transitional pipe segment C206, the gas of transitional pipe segment C206 The lower end connection that with gas separate arc arm C209, non-gaseous outlet and the transitional straight pipe 4 of transitional pipe segment C206 are mutually exported Entrance connection;Gas separates upper end and the gas separation that the upper end of arc arm A207, gas separate arc arm B208 The upper end of arc arm C209 is connected with discharge 210 respectively.
The silt isolated subsystem 3 is by least one-level silt isolating construction and a water and hydrate slurry outlet 7 Composition, the silt outlet of silt isolating construction are connected with the entrance of silt pumping installations 5, the water and hydrate of silt isolating construction Slurry outlet is connected with one end of water and hydrate slurry outlet 7, the other end of water and hydrate slurry outlet 7 and water and Hydrate slurry storage tank 8 connects.
Preferably, the silt isolated subsystem 3 includes two-stage silt isolating construction, wherein, first order silt point Separated spiral pipeline section A301, caught husky structure A302, sand discharge branched pipe A303 and separate on spiral with silt by silt from structure Riser section B304 front half section is constituted, and silt separates the entrance of spiral pipeline section A301 and the non-gaseous of gas isolated subsystem 2 Outlet connection, silt separate the exit of spiral pipeline section A301 and are provided with and catch husky structure A302, catch the of husky structure A302 One outlet is connected with the upper end of sand discharge branched pipe A303, and the second outlet and silt for catching husky structure A302 separates spiral pipeline section The entrance connection of B304 front half sections;Second level silt isolating construction is separated the spiral pipeline section B304 second half sections, is caught sand by silt Structure B305, sand discharge branched pipe B306 separate spiral pipeline section C307 compositions with silt, and silt separates spiral pipeline section B304 second half section exits are provided with catches husky structure B305, and the first outlet for catching husky structure B305 is upper with sand discharge branched pipe B306 End connection, the second outlet and silt for catching husky structure B305 separate the entrance connection of spiral pipeline section C307, and silt separates spiral shell The outlet for screwing on riser section C307 is connected with water and hydrate slurry outlet 7.
Catch husky structure A302 and include catching husky groove A302a and catch hourglass bucket A302b as shown in figure 3, described, catch husky groove A302a Place's fluid cross-section separates the fluid cross-section of spiral pipeline section A301 more than silt, catches hourglass bucket A302b and is arranged at and catches husky groove The lower section of A302a, and the silt for catching husky groove A302a collections is entered in sand discharge branched pipe A303 by catching hourglass bucket A302b streams.
Described catch husky structure B305 and include catching husky groove B and catch hourglass bucket B, catch husky groove B at fluid cross-section more than silt separation The fluid cross-section of spiral pipeline section B304, catches hourglass bucket B and is arranged at the lower section for catching husky groove B, and will catch the silt that husky groove B is collected Entered in sand discharge branched pipe B306 by catching hourglass bucket B streams.
The silt pumping installations 5 include pump 501, collection sandpipe 502 and screw feeder, and pump 501 is installed in collection sandpipe 502 One end, screw feeder be placed in collection sandpipe 502 in, the outfan of pump 501 is connected with screw feeder.
The course of work of the present invention is as follows:In hydrate slurry storage tank 1, air-water-hydrate-mortar body is through horizontal straight tube The first order gas that section 201 is entered in gas isolated subsystem 2 separates arcuate limb tubular construction, as gas separates arc arm 207 effect, causes which very big with the junction pressure drop of transitional pipe segment A202, and gas " is sucked " gas and separates arc arm 207.It is sinking arc pipeline section A203 lower slope sections as first order gas separates the outlet of arcuate limb pipe so that supervisor top Gas is detained, and is not easily accessible sinking arc pipeline section A203, enters the effect that gas separates arc arm A207 so as to improve gas. Then hydrate slurry enters second level gas and separates arcuate limb tubular construction.Its entrance is the upward slope of sinking arc pipeline section A203 Section, when passing through the pipeline section due to slurry, the gas on its top is easily accessible gas and separates arc arm B208, improves arc point Manifold configuration gas separation effect;Its outlet is sinking arc pipeline section B205 lower slope sections, separates arc with first order gas The same separating effect of the sinking arc pipeline section A203 lower slope sections in branch's tubular construction.After again, hydrate slurry enters third level gas Body separates arcuate limb tubular construction, and the structure is separated arcuate limb tubular construction and there is similar separation function with the gas of front two-stage And effect.Three-level gas separates the separated gas out of arcuate limb tubular construction, is transported to air accumulator 9 through discharge 210. In supervisor, the mixture slurry of remaining water-hydrate-sand enters transition straight length 4.After completing gas separation, transition straight length Hydrate slurry in 4 enters first order silt isolating construction, separates spiral in the silt of first order silt isolating construction In pipeline section A301, as husky density is larger, under the influence of centrifugal force, silt is along the outer wall for separating spiral pipeline section A301 Lower flow, in husky structure A302 is caught, catches husky groove A302a and flow section is expanded, and local helical formed therein that Flowing, silt are collected through catching hourglass bucket A302b, along sand discharge branched pipe under the collective effect of local helical stream and gravity A303 is flowed in collection sandpipe 502.Simultaneously because the outlet for catching husky structure A302 is silt separates spiral pipeline section B304, in weight In the presence of power, prevent silt to enter main flow conduit, further increase silt separating effect.In the same manner, through the first fraction Hydrate slurry after silt enters second level silt isolating construction, the function and effect of its separation of sediment and the phase of the first order With.
Complete water-hydrate after silt is separated water and hydrate slurry storage tank is entered along water and hydrate slurry outlet 7 8, the silt that the first order and second level silt isolating construction are isolated is flowed in collection sandpipe 502, drives collection sand by shell pump 501 Screw feeder in pipe 502 rotates and silt is transported in sand storage tank 6.
The above is only the better embodiment to the present invention, not makees any pro forma limit to the present invention System, any simple modification made to embodiment of above by every technical spirit according to the present invention, equivalent variations and modification, Belong to the scope of technical solution of the present invention.

Claims (8)

1. a kind of hydrate slurry bromhidrosis-sand piece-rate system, it is characterised in that:Including gas isolated subsystem(2)Separate with silt Subsystem(3), the gas isolated subsystem(2)Entrance and multiphase mixture slurry storage tank(1)Outlet connection, the gas Isolated subsystem(2)Gaseous phase outlet and air accumulator(9)Connection, the gas isolated subsystem(2)Non-gaseous outlet and mud Husky isolated subsystem(3)Entrance connection, the silt isolated subsystem(3)Silt outlet with silt pumping installations(5)'s Entrance connects, silt pumping installations(5)Outlet and sand tank(6)Connection, the silt isolated subsystem(3)Water and hydration Thing outlet and water and hydrate slurry storage tank(8)Connection.
2. a kind of hydrate slurry bromhidrosis-sand piece-rate system according to claim 1, it is characterised in that:The gas segregant System(2)Arcuate limb tubular construction and a discharge are separated by least one-level gas(210)Composition, gas separate arcuate limb The gas outlet of tubular construction and discharge(210)Entrance connection, discharge(210)Outlet and air accumulator(9)Connection.
3. a kind of hydrate slurry bromhidrosis-sand piece-rate system according to claim 2, it is characterised in that:The gas segregant System(2)Arcuate limb tubular construction is separated including three-level gas, wherein,
First order gas separates arcuate limb tubular construction by horizontal straight tube section(201), transitional pipe segment A(202), sinking arc pipeline section A(203)Lower slope section and gas separate arc arm A(207)Composition, horizontal straight tube section(201)Entrance and multiphase mixing slurry Body storage tank(1)Connection, horizontal straight tube section(201)Outlet and transitional pipe segment A(202)Entrance connection, transitional pipe segment A(202) Gaseous phase outlet separate arc arm A with gas(207)Lower end connection, transitional pipe segment A(202)Non-gaseous outlet with sink Arc pipeline section A(203)Lower slope section entrance connects;
Second level gas separates arcuate limb tubular construction by the arc pipeline section A that sinks(203)Upward slope section, transitional pipe segment B(204), under Heavy arc pipeline section B(205)Lower slope section and gas separate arc arm B(208)Composition, sinking arc pipeline section A(203)Upward slope section Outlet and transitional pipe segment B(204)Entrance connection, transitional pipe segment B(204)Gaseous phase outlet separate arc arm B with gas (208)Lower end connection, transitional pipe segment B(204)Non-gaseous outlet with sinking arc pipeline section B(205)Lower slope section entrance connects;
The third level separates arcuate limb tubular construction by the arc pipeline section B that sinks(205)Upward slope section, transitional pipe segment C(206), transition straight Spool(4)And gas separates arc arm C(209)Composition, sinking arc pipeline section B(205)Upward slope section outlet and transitional pipe segment C (206)Entrance connection, transitional pipe segment C(206)Gaseous phase outlet separate arc arm C with gas(209)Lower end connection, mistake Cross pipeline section C(206)Non-gaseous outlet with transitional straight pipe(4)Entrance connection;
Gas separates arc arm A(207)Upper end, gas separate arc arm B(208)Upper end and gas separate arc Arm C(209)Upper end respectively with discharge(210)Connection.
4. a kind of hydrate slurry bromhidrosis-sand piece-rate system according to claim 1, it is characterised in that:The silt segregant System(3)By at least one-level silt isolating construction and a water and hydrate slurry outlet(7)Composition, silt isolating construction Silt outlet and silt pumping installations(5)Entrance connection, the water of silt isolating construction and hydrate slurry outlet and Shui Heshui Compound slurry outlet pipe(7)One end connection, water and hydrate slurry outlet(7)The other end and water and hydrate slurry store up Tank(8)Connection.
5. a kind of hydrate slurry bromhidrosis-sand piece-rate system according to claim 4, it is characterised in that:The silt segregant System(3)Including two-stage silt isolating construction, wherein,
First order silt isolating construction separates spiral pipeline section A by silt(301), catch husky structure A(302), sand discharge branched pipe A (303)Spiral pipeline section B is separated with silt(304)Front half section is constituted, and silt separates spiral pipeline section A(301)Entrance With gas isolated subsystem(2)Non-gaseous outlet connection, silt separate spiral pipeline section A(301)Exit be provided with Catch husky structure A(302), catch husky structure A(302)First outlet and sand discharge branched pipe A(303)Upper end connection, catch husky structure A (302)Second outlet separate spiral pipeline section B with silt(304)The entrance connection of front half section;
Second level silt isolating construction separates spiral pipeline section B by silt(304)Second half section, catch husky structure B(305), sand discharge Branched pipe B(306)Spiral pipeline section C is separated with silt(307)Composition, silt separate spiral pipeline section B(304)Second half section Exit is provided with catches husky structure B(305), catch husky structure B(305)First outlet and sand discharge branched pipe B(306)Upper end connect Connect, catch husky structure B(305)Second outlet separate spiral pipeline section C with silt(307)Entrance connection, silt separate spiral shell Screw on riser section C(307)Outlet and water and hydrate slurry outlet(7)Connection.
6. a kind of hydrate slurry bromhidrosis-sand piece-rate system according to claim 5, it is characterised in that:Described catch husky structure A (302)Including catching husky groove A(302a)With catch hourglass bucket A(302b), catch husky groove A(302a)Place's fluid cross-section separates spiral shell more than silt Screw on riser section A(301)Fluid cross-section, catch hourglass bucket A(302b)It is arranged at and catches husky groove A(302a)Lower section, and sand will be caught Groove A(302a)The silt of collection is by catching hourglass bucket A(302b)Stream enters sand discharge branched pipe A(303)Interior.
7. a kind of hydrate slurry bromhidrosis-sand piece-rate system according to claim 5, it is characterised in that:Described catch husky structure B (305)Including catching husky groove B and catching hourglass bucket B, catch fluid cross-section at husky groove B and spiral pipeline section B is separated more than silt(304)'s Fluid cross-section, catches hourglass bucket B and is arranged at the lower section for catching husky groove B, and the silt for catching husky groove B collections is entered by catching hourglass bucket B streams Sand discharge branched pipe B(306)Interior.
8. a kind of hydrate slurry bromhidrosis-sand piece-rate system according to claim 1 or 4, it is characterised in that:The silt pumping Device(5)Including pump(501), collection sandpipe(502)And screw feeder, pump(501)Installed in collection sandpipe(502)One end, spiral shell Rotation pusher is placed in collection sandpipe(502)Interior, pump(501)Outfan be connected with screw feeder.
CN201610990054.6A 2016-11-10 2016-11-10 A kind of hydrate slurry gas-sand separation system Expired - Fee Related CN106499379B (en)

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CN106499379A true CN106499379A (en) 2017-03-15
CN106499379B CN106499379B (en) 2019-10-01

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CN108643879A (en) * 2018-05-08 2018-10-12 中国石油大学(华东) A kind of underwater desanding device
CN108716361A (en) * 2018-06-06 2018-10-30 西南石油大学 A kind of ocean gas hydrate original position Dynamic Separation backfilling apparatus
CN109403944A (en) * 2018-12-06 2019-03-01 青岛海洋地质研究所 A kind of hydrate mortar thickening separator and separation method
CN113323646A (en) * 2021-08-04 2021-08-31 四川凌耘建科技有限公司 High-pressure buffering sand separation device for wellhead of compact gas well

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CN204981768U (en) * 2015-08-26 2016-01-20 甘肃蓝科石化高新装备股份有限公司 Skid -mounted tubular multistage separator

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CN103990556A (en) * 2014-04-29 2014-08-20 成都市龙泉驿区齐盛机械厂 Desander
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108643879A (en) * 2018-05-08 2018-10-12 中国石油大学(华东) A kind of underwater desanding device
CN108643879B (en) * 2018-05-08 2020-06-02 中国石油大学(华东) Underwater sand removing device
CN108716361A (en) * 2018-06-06 2018-10-30 西南石油大学 A kind of ocean gas hydrate original position Dynamic Separation backfilling apparatus
CN109403944A (en) * 2018-12-06 2019-03-01 青岛海洋地质研究所 A kind of hydrate mortar thickening separator and separation method
CN113323646A (en) * 2021-08-04 2021-08-31 四川凌耘建科技有限公司 High-pressure buffering sand separation device for wellhead of compact gas well
CN113323646B (en) * 2021-08-04 2021-12-14 四川凌耘建科技有限公司 High-pressure buffering sand separation device for wellhead of compact gas well

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