CN101135235A - Two-tube reverse circulation continuous sand flushing device - Google Patents
Two-tube reverse circulation continuous sand flushing device Download PDFInfo
- Publication number
- CN101135235A CN101135235A CNA2007101575260A CN200710157526A CN101135235A CN 101135235 A CN101135235 A CN 101135235A CN A2007101575260 A CNA2007101575260 A CN A2007101575260A CN 200710157526 A CN200710157526 A CN 200710157526A CN 101135235 A CN101135235 A CN 101135235A
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- Prior art keywords
- pipe
- reciprocating sealing
- hydrodynamic reciprocating
- cylindrical shell
- sand flushing
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- 239000004576 sand Substances 0.000 title claims abstract description 46
- 238000011010 flushing procedure Methods 0.000 title claims description 35
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 238000012856 packing Methods 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 abstract description 8
- 238000003825 pressing Methods 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- Branch Pipes, Bends, And The Like (AREA)
Abstract
The double pipe reverse circulating continuous sand washing apparatus for petroleum extracting workover treatment consists of two barrels, one connecting pipe joint, two movable sealing pipe, one inner pipe, one stopping block, one spring, one oil pipe joint, one O-ring, one flange, one middle seat, one L-shaped sealing rubber core, two pressing blocks and two end joints. The present invention can complete continuous sand washing to low pressure leaker with double pipe, and may be applied in petroleum extracting operation.
Description
Technical field:
The present invention relates to a kind of two-tube reverse circulation continuous sand flushing device that a kind of oil exploitation workover treatment sand washing is used.
Background technology:
The continuous sand flushing device that oil exploitation well workover sand washing is at present used is at single tube direct circulation sand washing, and only the well of not missing at routine could adopt, when running into serious low-pressure absorption well, the sand cleaning fluid stratum of will bleeding, do not set up the circulating system, so this device can not satisfy absorption well sand flushing operation needs .CN2410413Y and the patent No. is the 02281034x continuous sand flushing device, though they have realized the continuous sand flushing operation of conventional well, production timeliness and sand washing efficient have been improved, but these install only suitable single-stage sand washing tubing string, can not cooperate the twin-stage tubing string that low-pressure absorption well is carried out the continuous sand flushing operation.Therefore need a kind of sand flushing device that solves the operation of low-pressure absorption well continuous sand flushing of development.
Summary of the invention:
The purpose of this invention is to provide this device solves of a kind of two-tube reverse circulation continuous sand flushing device exist in the prior art can only can not cooperate the problem of twin-stage tubing string to conventional single-stage tubing string absorption well continuous sand flushing not to the low-pressure absorption well continuous sand flushing.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of two-tube reverse circulation continuous sand flushing device is by two-tube continuous sand flushing inner tube assembly and two-tube continuous sand flushing well head is self-styled constitutes; Promptly form by cylindrical shell, tube connector male joint, hydrodynamic reciprocating sealing pipe, cylindrical shell II, core pipe, scotch, following hydrodynamic reciprocating sealing pipe, spring, oil pipe change snapping head, O RunddichtringO, method indigo plant, middle base, 7 font packing units, briquetting I, briquetting II, outlet connection, inlet union; Core pipe is placed on oil pipe and becomes on the snapping head, spring housing is in the core pipe bottom, following hydrodynamic reciprocating sealing pipe passes the core pipe center and is pressed on the spring, scotch is pressed in down on the hydrodynamic reciprocating sealing pipe, the hydrodynamic reciprocating sealing pipe passes the tube connector male joint and is pressed in down on the hydrodynamic reciprocating sealing pipe, cylindrical shell II and oil pipe become the snapping head, tube connector male joint and core pipe, cylindrical shell and cylindrical shell II, upper flange and middle base (putting upside down), lower flange and middle base are screwed connection, outlet connection, inlet union and middle base welding, and keep outlet connection to become 180 degree angles with inlet union, 7 font packing units pass and are placed on the middle base, briquetting I, briquetting II directly is pressed on the 7 font packing units; A whole set of sand flushing device has two cover turnover circulation canals, and realizes the conversion of two cover circulation canals under fluid pressure and spring action; Axial cross aisle does not stagger on the following hydrodynamic reciprocating sealing pipe.During this sand flushing device work; Two-tube continuous sand flushing inner tube assembly is by 4
1/
2Pipe elevator blocks the outside seat of cylindrical shell and is enclosed in twin-stage continuous sand flushing well head from sealing up, the self-styled inlet union of two-tube continuous sand flushing well head connects hose, in liquid enters annular space between middle base and the cylindrical shell II from well head joint endoporus, owing in the annular space 7 font packing unit and O-ring seals are arranged, make liquid can not go up current downflow, and the hole from cylindrical shell II wall enters in the annular space of cylindrical shell II and core pipe, liquid moves upward by the axial hole that staggers that distributes on the following hydrodynamic reciprocating sealing pipe, under spring action, make the hydrodynamic reciprocating sealing pipe conical surface and scotch conical surface seal down, make the liquid that moves upward to flow downward owing to top seal, by the axial distribution hole on spring and the core pipe, flow to pipe in the next two-tube continuous sand flushing.In the two-tube continuous sand flushing of the next one in the pipe, because the effect of fluid pressure, the hydrodynamic reciprocating sealing pipe is moved down, hydrodynamic reciprocating sealing pipe and spring make down hydrodynamic reciprocating sealing pipe bottom be sitting on the step of cylindrical shell II inwall at last to pressing down under driving, and seal up import and outlet on the cylindrical shell II, liquid flows downward in the annular space of cylindrical shell and tube connector male joint, to dirty,, flow to pipe in the next two-tube continuous sand flushing from the axial hole of following hydrodynamic reciprocating sealing pipe by the axial hole on spring and the core pipe; The interior core pipe of digging under when the silt particle that impacts upwards returns, thereby the core pipe inside that enters pipe in the twin-stage continuous sand flushing is upwards returned, because the outlet of core pipe is by the hydrodynamic reciprocating sealing pipe plug is dead down, can only continue upwards general, hole from the wall enters down the annular space of hydrodynamic reciprocating sealing pipe and hydrodynamic reciprocating sealing pipe, continue the pipe upwards in hole from tube connector male joint wall enters again, return again in the two-tube continuous sand flushing of upper level in the pipe.Be enclosed in two-tube continuous sand flushing well head from sealing up up to the seat of going up most a place, because the hydrodynamic reciprocating sealing Guan Wei effect of being under pressure of this inner tube assembly, liquid is upwards blocked from the endoporus of core pipe, can only return out from outlet, returns out through outlet connection sand body is instead arrived ground.
The invention has the beneficial effects as follows that this device can be realized being lowered to continuously of sand washing tubing string under the situation of not termination of pumping; It can guarantee that liquid uninterruptedly circulates, and has avoided sand plug nozzle and trunnion; It is single, easy to operate, safe and reliable to use this device construction tube.
Description of drawings:
Accompanying drawing is an overall structure schematic diagram of the present invention.
Among the figure 1, cylindrical shell, 2, the tube connector male joint, 3, the hydrodynamic reciprocating sealing pipe, 4, cylindrical shell II, 5, core pipe, 6, scotch, 7, following hydrodynamic reciprocating sealing pipe, 8, spring, 9, oil pipe becomes the snapping head, 10, O RunddichtringO, 11, flange, 12, middle base, 13,7 font packing units, 14, briquetting I, 15, briquetting II, 16, outlet connection, 17, inlet union.
The specific embodiment:
In the accompanying drawings, a kind of two-tube reverse circulation continuous sand flushing device is by two-tube continuous sand flushing inner tube assembly with two-tube continuous sand flushing well head is self-styled constitutes; Promptly form by cylindrical shell 1, tube connector male joint 2, hydrodynamic reciprocating sealing pipe 3, cylindrical shell II4, core pipe 5, scotch 6, following hydrodynamic reciprocating sealing pipe 7, spring 8, oil pipe change snapping head 9,0 RunddichtringO 10, flange 11, middle base 12,7 font packing units 13, briquetting I14, briquetting II15, outlet connection 16, inlet union 17; Core pipe 5 is placed on oil pipe and becomes on the snapping head 9, spring 8 is enclosed within the core pipe bottom, following hydrodynamic reciprocating sealing pipe 7 passes core pipe 5 centers and is pressed on the spring 8, scotch 6 is pressed in down on the hydrodynamic reciprocating sealing pipe 7, hydrodynamic reciprocating sealing pipe 3 passes tube connector male joint 2 and is pressed in down on the hydrodynamic reciprocating sealing pipe 7, cylindrical shell II4 and oil pipe become snapping head 9, tube connector male joint 2 and core pipe 5, cylindrical shell 1 and cylindrical shell II4, upper flange 11 and middle base 12 (being sidelong), lower flange 11 is screwed connection with middle base 12, outlet connection 16, inlet union 17 and middle base 12 welding, and keep outlet connection to become 180 degree angles with inlet union, 7 font packing units 13 pass and are placed on the middle left side 12, briquetting I14, briquetting II15 directly is pressed on the 7 font packing units 13; A whole set of sand flushing device has two cover turnover circulation canals, and realizes the conversion of two cover circulation canals under fluid pressure and spring action; Axial cross aisle does not stagger on the following hydrodynamic reciprocating sealing pipe 7.
Claims (1)
1. a two-tube reverse circulation continuous sand flushing device is by two-tube continuous sand flushing inner tube assembly with two-tube continuous sand flushing well head is self-styled constitutes by cylindrical shell (1), tube connector male joint (2), hydrodynamic reciprocating sealing pipe (3), cylindrical shell II (4), core pipe (5), scotch (6), following hydrodynamic reciprocating sealing pipe (7), spring (8), oil pipe becomes snapping head (9), 0 RunddichtringO (10), flange (11), middle base (12), 7 font packing units (13), briquetting I (14), briquetting II (15), outlet connection (16), inlet union (17) is formed, it is characterized in that: core pipe (5) is placed on oil pipe and becomes on the snapping head (9), spring (8) is enclosed within the core pipe bottom, following hydrodynamic reciprocating sealing pipe (7) passes core pipe (5) center and is pressed on the spring (8), scotch (6) is pressed in down on the hydrodynamic reciprocating sealing pipe (7), hydrodynamic reciprocating sealing pipe (3) passes tube connector male joint (2) and is pressed in down on the hydrodynamic reciprocating sealing pipe (7), cylindrical shell II (4) becomes snapping head (9) with oil pipe, tube connector male joint (2) and core pipe (5), cylindrical shell (1) and cylindrical shell II (4), upper flange (11) and middle base (12), lower flange (11) is screwed connection with middle base (12), outlet connection (16), inlet union (17) and middle base (12) welding, and keep outlet connection to become 180 degree angles with inlet union, 7 font packing units (13) pass and are placed on the middle base (12), briquetting I (14), briquetting II (15) directly is pressed on the 7 font packing units (13); A whole set of sand flushing device has two cover turnover circulation canals, and realizes the conversion of two cover circulation canals under fluid pressure and spring action; Axial cross aisle does not stagger on the following hydrodynamic reciprocating sealing pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710157526A CN100585122C (en) | 2007-10-18 | 2007-10-18 | A double-pipe reverse circulation continuous sand washing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710157526A CN100585122C (en) | 2007-10-18 | 2007-10-18 | A double-pipe reverse circulation continuous sand washing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101135235A true CN101135235A (en) | 2008-03-05 |
| CN100585122C CN100585122C (en) | 2010-01-27 |
Family
ID=39159535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710157526A Expired - Fee Related CN100585122C (en) | 2007-10-18 | 2007-10-18 | A double-pipe reverse circulation continuous sand washing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100585122C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388464A (en) * | 2012-05-10 | 2013-11-13 | 中国石油大学(华东) | Concentric double pipe column reverse circulation continuous coal dust washing system well head device |
| CN105625969A (en) * | 2014-10-29 | 2016-06-01 | 中国石油化工股份有限公司 | Continuous sand flushing conversion tool |
| CN105804679A (en) * | 2016-02-06 | 2016-07-27 | 高伟时 | Horizontal well shaft processing process tubing string device for realizing continuous circulation by ordinary oil pipe |
-
2007
- 2007-10-18 CN CN200710157526A patent/CN100585122C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388464A (en) * | 2012-05-10 | 2013-11-13 | 中国石油大学(华东) | Concentric double pipe column reverse circulation continuous coal dust washing system well head device |
| CN105625969A (en) * | 2014-10-29 | 2016-06-01 | 中国石油化工股份有限公司 | Continuous sand flushing conversion tool |
| CN105804679A (en) * | 2016-02-06 | 2016-07-27 | 高伟时 | Horizontal well shaft processing process tubing string device for realizing continuous circulation by ordinary oil pipe |
| CN105804679B (en) * | 2016-02-06 | 2018-05-08 | 高伟时 | Continuously circulating water horizontal well wellbore treatments process pipe string device is realized using plain tubing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100585122C (en) | 2010-01-27 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20131018 |