CN201517369U - Multi-angle horizontal branch well natural gas exploitation simulator - Google Patents
Multi-angle horizontal branch well natural gas exploitation simulator Download PDFInfo
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- CN201517369U CN201517369U CN2009202464471U CN200920246447U CN201517369U CN 201517369 U CN201517369 U CN 201517369U CN 2009202464471 U CN2009202464471 U CN 2009202464471U CN 200920246447 U CN200920246447 U CN 200920246447U CN 201517369 U CN201517369 U CN 201517369U
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 239000003345 natural gas Substances 0.000 title claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract description 25
- 239000007924 injection Substances 0.000 claims abstract description 25
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 12
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- 239000004576 sand Substances 0.000 abstract description 10
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- 238000000034 method Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 7
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- 230000000694 effects Effects 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract 1
- 238000002474 experimental method Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 9
- 238000000605 extraction Methods 0.000 description 7
- 238000011160 research Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
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Abstract
A multi-angle horizontal branch well natural gas exploitation simulation device is applied to a physical simulation test special for an unconventional natural gas development horizontal well. Is characterized in that: the multi-angle branch well model comprises house steward and bleeder, and the welding has 4 ~ 12 bleeders on the house steward, bleeder and house steward UNICOM, and the contained angle of the central line of bleeder and house steward is between 25 ~ 65 degrees, and the length of bleeder is between 500 ~ 1000 mm. The outlet end of the main pipe is fixed with a main pipe end socket. End covers are arranged at the liquid inlet ends of the branch pipe and the main pipe, a pipeline and an injection pump are connected to the end covers, and a flow meter and a valve are connected to the pipeline in series and connected with a pressure sensor. The effect is as follows: the method can simulate the technical parameters of the fluid exploitation of multi-angle and multi-branch wells, study the formation sand production condition of unconventional natural gas in the exploitation process of the horizontal branch well, study the sand washing process, and provide basic parameters such as formation pressure distribution, discharge and exploitation degree and the like for the unconventional natural gas exploitation.
Description
Technical field
The utility model relates to oil and gas industry construction of natural gas fields technical field.Being particularly related to a kind of natural gas extraction indoor simulation device, is the special-purpose physical simulating device of a kind of unconventional construction of natural gas fields horizontal well.
Background technology
At present, unconventional natural gas is the natural gas that a kind of non-structure control, large tracts of land become to hide, and the main type of present unconventional natural gas has three kinds of shale gas, coal bed gas and tight gas.Horizontal branch well is a kind of effective means of the unconventional gas field of exploitation, and it can significantly improve the comprehensive benefit of unconventional natural gas pool exploration and development.After nineteen twenty-eight, the first in the world saliva horizontal well was drilled to, horizontal well technology developed rapidly, and increased with the speed of annual 3000-5000 mouth water horizontal well, and China has been drilled to first mouthful of water horizontal well in nineteen sixty-five in the Sichuan Basin, and calendar year 2001 is finished first mouthful of horizontal branch well.Successively begun the application of horizontal well technology in each oil field, formation sand production feature in the horizontal branch well recovery process, technology in sand-flushing technology and the straight well has very big difference, not only show the increase of task difficulty, but also restricting the formulation of technology measure and the effect behind the construction operation, mainly be because in the water horizontal well, there is the straight well section simultaneously, inclination section, horizontal segment, four kinds of pit shafts of son field, particularly under long horizontal well wellbore conditions, the complex relationship of gravity and horizontal branch pit shaft direction, the existence form and the mobile migration rule of medium in the horizontal wellbore have been influenced, add complicated net horizontal section track, need the eyelet number of perforation many, perforation orientation is changeable, the difference that eyelet distributes, and liquid injection process, operating types etc. have all strengthened horizontal well sand-flushing difficulty; And at present horizontal well sand-flushing technology adopts the method for experience mostly, just observes on one side, gropes on one side, Yi Bian improvement is adjusted according to site specific, does not have science, quantitative technology, in this case, just is difficult to carry out technology optimization; From the technical literature request for information, though abroad the research of horizontal well technology there is long history, about the technical literature of horizontal branch well shaft sand-flushing is not seen as yet.Therefore, press for one of research and development both rapidly and efficiently, meet the air content fast desorption experimental facilities of air content testing experiment principle again.
The utility model content
The purpose of this utility model is: a kind of natural gas exploitation simulator of multi-angle horizontal branch well is provided, can simulate the production technique parameter of multi-angle, multilateral well, be used for studying unconventional natural gas formation sand production situation, research sand washing process in the horizontal branch well recovery process, multiphase porous flow problem in the exploitation of research level well provides underlying parameters such as strata pressure distribution, row's degree of gathering and processing for unconventional natural gas extraction.
The technical solution adopted in the utility model is: natural gas exploitation simulator of multi-angle horizontal branch well, mainly form by valve, pressure sensor, total channel closure, multi-angle branch well model, temperature pick up, flow meter, injection pump, feed flow pond and liquid storage tank, it is characterized in that: multi-angle branch well model is made up of house steward and branched pipe, on house steward, be welded with 4～12 branched pipes, branched pipe and house steward UNICOM, the angle of the center line of branched pipe and house steward's center line is between 25～65 degree, and the length of branched pipe is between 500～1000mm.Be fixed with temperature pick up on house steward's outlet end outer wall, be fixed with total channel closure in house steward's fluid end, the liquid feeding end of total channel closure is connected with pipeline and valve, is connected with pressure sensor at total channel closure to the pipeline between the valve.Liquid can pass through total channel closure, valve and pipeline and flow out.Liquid feeding end branched pipe and house steward has end cap, is connected with pipeline on the end cap.This pipeline is connected with injection pump, is in series with flow meter and valve at the end cap of branched pipe and house steward's liquid feeding end to the pipeline between the injection pump, is connected with pressure sensor at the end cap of branched pipe and house steward's liquid feeding end to the pipeline between the injection pump.The inlet of injection pump is connected with pipeline, and this pipeline is connected to the feed flow pond.
In order to test the experimental data contrast of different angles, different length Multilateral Wells, two of described branched pipes are one group, and the end cap of each branch pipe liquid feeding end connects an injection pump.
Described total channel closure is made up of joint, little pressure cap, plain cushion, small sealing ring, transparent pipe, big pressure cap, large sealing packing ring, block head, screen pack and filter screen pressure cap.Block head is the stairstepping cylinder, and block head has centre bore.The large cylinder end of block head in total tube end, the large cylinder end outer wall of block head with always between the inside pipe wall sealing ring is arranged.Big pressure cap is connected with house steward's end thread and the fixed sealing plug.There is screen pack end at block head, adopts the filter screen pressure cap screen pack to be fixed on the end of block head.A transparent pipe is arranged in the centre bore of block head.On block head roundlet post jamb, have window.End at the block head small column is fixed with joint by little pressure cap.Between joint end and transparent tube end, plain cushion is arranged, between transparent pipe outer wall and block head center hole wall, the O RunddichtringO is arranged.Liquid can enter transparent pipe in the block head by screen pack, flows out by transparent pipe.Can see through the liquid flow that window sees that transparent pipe is interior.Liquid can flow out by the joint centre bore.
The operating principle of natural gas exploitation simulator of multi-angle horizontal branch well and process of the test: before experimentizing, at first determine experimental program, use the branched pipe of varying number as required.When experimentizing, at first put into the formation water of preparation in proportion in the feed flow pond, open experiment branched pipe feed liquor end cap, insert sand grains in the outer tube of experiment branched pipe, close fork pipe feed liquor end cap inserts the interior pipe of testing from the branched pipe top then, be in assigned address up to interior pipe tail end, to fill clear water in the branched pipe then, the experiment liquid of the capacity of packing in the feed flow pond starts injection pump then the injection in the feed flow pond is pumped into different branched pipes.During experiment, injection pump is set at different rotating speeds, so just has different reservoir quantities, reach and carry out the test that different flow drags interior pipe, the test under the condition that pipe is static in perhaps carrying out.By observing transparent pipe visualization window, the sand grains of inserting in the outer tube of experiment pit shaft is taken out of the experiment branched pipe fully and has just been finished test.The overall process that camera is observed and record is tested in the process of test, the upper pressure sensor that acquisition processing device connects by cable, afterbody pressure sensor, electronic balance etc. are noted parameters such as the pressure, flow of experiment, be used for the result of test is analyzed, open the feed liquor end cap of experiment branched pipe after experiment finishes and discharge raffinate.Computer processing system can monitor and control temperature, the pressure of system in real time, and data such as flow are handled and explained.
The beneficial effects of the utility model: the utility model natural gas exploitation simulator of multi-angle horizontal branch well, can simulate the technical data of the production fluid of multi-angle, multilateral well, horizontal branch well to different angles is simulated, under simulation Different Strata temperature, the pressure condition, unconventional natural gas extraction multilateral well under certain pump drainage working system, the speed of outputs such as natural gas, formation water, landwaste and sand washing process technical data etc.Study unconventional natural gas formation sand production situation, research sand washing process in the horizontal branch well recovery process, multiphase porous flow problem in the exploitation of research level well provides underlying parameters such as strata pressure distribution, row's degree of gathering and processing for unconventional natural gas extraction.
According to said structure, made a unconventional natural gas extraction analogue experiment installation, successfully carried out unconventional natural gas extraction experimental work.By to regional exploitation simulated experiments such as Sichuan, Shanxi, the data of being surveyed are used in this area's low infiltration sandrock, coal bed gas and the shale gas exploitation, obtained the good effect that instructs.Simulating data such as the gas flow surveyed under the temperature, pressure condition of the same degree of depth, earth cuttings output is identical, show that this apparatus can finish on-the-spot unconventional natural gas extraction analog operation smoothly, the experimental data that is provided is accurately credible, can instruct unconventional construction of natural gas fields practice efficiently and easily.Utilize this experimental facilities can simulate the production technique parameter of multi-angle, multilateral well, be used to estimate somewhere unconventional gas resource potentiality and DEVELOPMENT PROSPECT.
Description of drawings
Fig. 1 is the utility model natural gas exploitation simulator of multi-angle horizontal branch well structural representation.
Fig. 2 is the structural representation of multi-angle branch well model 4 of the present utility model.
Fig. 3 is the structural profile schematic diagram of total channel closure 3 of the present utility model.
Among the figure, 1. valve, 2. pressure sensor, 3. total channel closure, 4. multi-angle branch well model, 5. temperature pick up, 6. flow meter, 7. injection pump, 8. feed flow pond, 9. liquid storage tank.
The specific embodiment
Embodiment 1: with a natural gas exploitation simulator of multi-angle horizontal branch well is example, and the utility model is described in further detail.
Consult Fig. 1.The utility model natural gas exploitation simulator of multi-angle horizontal branch well mainly is made up of valve 1, pressure sensor 2, total channel closure 3, multi-angle branch well model 4, temperature pick up 5, flow meter 6, injection pump 7, feed flow pond 8 and liquid storage tank 9.
Consult Fig. 2.Multi-angle branch well model 4 is made up of house steward 4.0 and 8 branched pipes.Weld root branched pipe on the house steward 4.0, branched pipe and house steward 4.0 UNICOMs.House steward 4.0 diameter 100mm, length 2000mm; Six roots of sensation branched pipe is arranged, and promptly the diameter of first branched pipe 4.1, second branched pipe 4.2, the 3rd branched pipe 4.3, the 4th branched pipe 4.4, quintafurcation pipe 4.5 and the 6th branched pipe 4.6 is 50mm, length 800mm; The diameter of the 7th branched pipe 4.7, the 8th branched pipe 4.8 is 50mm, length 600mm.
First branched pipe 4.1, second branched pipe 4.2, the 6th branched pipe 4.6, the 7th branched pipe 4.7 and the 8th branched pipe 4.8 are 30 degree with house steward 4.0 horizontal sextant angle.The 3rd branched pipe 4.3 and the 4th branched pipe 4.4 are 45 degree with house steward 4.0 horizontal sextant angle.Quintafurcation pipe 4.5 is 60 degree with house steward 4.0 horizontal sextant angle.Second branched pipe 4.2, the 3rd branched pipe 4.3, the 4th branched pipe 4.4, the 7th branched pipe 4.7 and the 8th branched pipe 4.8 and house steward 4.0 are in same plane; First branched pipe 4.1 is 20 degree with the angle on plane; Quintafurcation pipe 4.5 is 45 degree with the angle on plane; The 6th branched pipe 4.6 is 60 degree with the angle on plane.
On house steward 4.0 outlet end outer wall, be fixed with a temperature pick up 5, be fixed with a total channel closure 3 in house steward 4.0 fluid end, the liquid feeding end of total channel closure 3 is connected with pipeline and a valve 1, is connected with a pressure sensor 2 at total channel closure 3 to the pipeline between the valve 1.Liquid can pass through total channel closure 3, valve 1 and pipeline and flow out.The line end of house steward 4.0 outlet end has a liquid storage tank 9, stores the liquid of discharging.
First branched pipe 4.1 and second branched pipe 4.2 are one group, and the liquid feeding end of first branched pipe 4.1 and second branched pipe 4.2 is connected an injection pump 7.Be in series with a flow meter 6 and a valve 1 and be connected with a pressure sensor 2 to the pipeline of injection pump 7 at first branched pipe 4.1 and second branched pipe, 4.2 end caps.
Equally, the 3rd branched pipe 4.3 and the 4th branched pipe 4.4 are one group, and quintafurcation pipe 4.5 and the 6th branched pipe 4.6 are one group, and the 7th branched pipe 4.7 and the 8th branched pipe 4.8 are one group, are connected with an injection pump 7 respectively at liquid feeding end.On connecting line, be in series with a flow meter 6 and a valve 1 equally and be connected with a pressure sensor 2.There is pipeline to connect house steward 4.0 liquid feeding end at the injection pump 7 that is connected with the 7th branched pipe 4.7, the 8th branched pipe 4.8, and is in series with a flow meter 6 and a valve 1 and is connected with a pressure sensor 2.
The inlet of four injection pumps 7 is connected with pipeline, and pipeline is connected to feed flow pond 8.
Described total channel closure 3 is made up of joint 3.1, little pressure cap 3.2, plain cushion 3.3, small sealing ring 3.4, transparent pipe 3.5, big pressure cap 3.6, large sealing packing ring 3.7, block head 3.8, screen pack 3.9 and filter screen pressure cap 3.10.Block head 3.8 is the stairstepping cylinder, and block head 3.8 has centre bore.The large cylinder end of block head 3.8 has a sealing ring 3.7 between the large cylinder end outer wall of block head 3.8 and house steward's 4.0 inwalls in house steward 4.0 ends.Big pressure cap 3.6 is connected with house steward's 4.0 end thread and fixed sealing plug 3.8.A screen pack 3.9 is arranged in the end of block head 3.8, adopt filter screen pressure cap 3.10 screen pack 3.9 to be fixed on the end of block head 3.8.A transparent pipe 3.5 is arranged in the centre bore of block head 3.8.On block head 3.8 roundlet post jambs, have window.End at block head 3.8 small columns is fixed with joint 3.1 by little pressure cap 3.2.Between joint 3.1 ends and transparent pipe 3.5 ends, plain cushion 3.3 is arranged, between transparent pipe 3.5 outer walls and block head 3.8 center hole walls, an O RunddichtringO 3.4 is arranged.
Multi-angle branch well model 4 is installed on the support, can rotate multi-angle branch well model 4, makes the angle of multi-angle branch well model 4 adjustings and horizontal plane.
The maximum stream flow of injection pump 7 is 20mL/min, and maximum pressure is 10Mpa, employing be constant-flux pump.This kind pump adopts non-circular gear or linear cam to drive, and has the good double plunger kinetic characteristic that constant current requires that satisfies.
Natural gas exploitation simulator of multi-angle horizontal branch well can also adopt microcomputer control monitoring, gather parameters such as pressure, temperature, flow, be provided with computer communication interface, printer, data collecting card, collection and process software etc., flow, pressure etc. is shown, running parameter is imported by keyboard, simple to operate, easy to maintenance.For safety, can also set up the high-low pressure protective device.
Claims (2)
1. natural gas exploitation simulator of multi-angle horizontal branch well, mainly by valve (1), pressure sensor (2), total channel closure (3), multi-angle branch well model (4), temperature pick up (5), flow meter (6), injection pump (7), feed flow pond (8) and liquid storage tank (9) are formed, it is characterized in that: multi-angle branch well model (4) is made up of house steward (4.0) and branched pipe, on house steward (4.0), be welded with 4～12 branched pipes, branched pipe and house steward (4.0) UNICOM, the angle of the center line of branched pipe and house steward's (4.0) center line is between 25～65 degree, and the length of branched pipe is between 500～1000mm; On house steward's (4.0) outlet end outer wall, be fixed with temperature pick up (5), be fixed with total channel closure (3) in house steward's (4.0) fluid end, the liquid feeding end of total channel closure (3) is connected with pipeline and valve (1), is connected with pressure sensor (2) at total channel closure (3) to the pipeline between the valve (1); Liquid feeding end branched pipe and house steward (4.0) has end cap, be connected with pipeline on the end cap, pipeline is connected with injection pump (7), end cap at branched pipe and house steward (4.0) liquid feeding end is in series with flow meter (6) and valve (1) to the pipeline between the injection pump (7), end cap at branched pipe and house steward (4.0) liquid feeding end is connected with pressure sensor (2) to the pipeline between the injection pump (7), the inlet of injection pump (7) is connected with pipeline, this pipeline is connected to feed flow pond (8), two of described branched pipes are one group, and the end cap of each branch pipe liquid feeding end connects an injection pump (7).
2. natural gas exploitation simulator of multi-angle horizontal branch well according to claim 1, it is characterized in that: described total channel closure (3) is by joint (3.1), little pressure cap (3.2), plain cushion (3.3), small sealing ring (3.4), transparent pipe (3.5), big pressure cap (3.6), large sealing packing ring (3.7), block head (3.8), screen pack (3.9) and filter screen pressure cap (3.10) are formed, block head (3.8) is the stairstepping cylinder, block head (3.8) has centre bore, the large cylinder end of block head (3.8) is in house steward (4.0) end, between the large cylinder end outer wall of block head (3.8) and house steward (4.0) inwall, sealing ring (3.7) is arranged, big pressure cap (3.6) is connected with house steward (4.0) end thread and fixed sealing plug (3.8), in the end of block head (3.8) screen pack (3.9) is arranged, filter screen pressure cap (3.10) is fixed on screen pack (3.9) end of block head (3.8), a transparent pipe (3.5) is arranged in the centre bore of block head (3.8), on block head (3.8) roundlet post jamb, have window, end at block head (3.8) small column is fixed with joint (3.1) by little pressure cap (3.2), between joint (3.1) end and transparent pipe (3.5) end, plain cushion (3.3) is arranged, between transparent pipe (3.5) outer wall and block head (3.8) center hole wall, O RunddichtringO (3.4) is arranged.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202464471U CN201517369U (en) | 2009-10-30 | 2009-10-30 | Multi-angle horizontal branch well natural gas exploitation simulator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009202464471U CN201517369U (en) | 2009-10-30 | 2009-10-30 | Multi-angle horizontal branch well natural gas exploitation simulator |
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| CN201517369U true CN201517369U (en) | 2010-06-30 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800000B (en) * | 2009-10-30 | 2011-08-03 | 中国石油天然气股份有限公司 | Multi-angle horizontal branch well natural gas exploitation simulator |
| CN103015985A (en) * | 2012-12-21 | 2013-04-03 | 中国石油大学(北京) | Two-dimensional visual simulation device for inflow performances of horizontal well and vertical well |
| CN104499938A (en) * | 2014-10-24 | 2015-04-08 | 湖南五新重型装备有限公司 | Load simulation device of horizontal directional drilling machine |
| CN108756827A (en) * | 2018-05-17 | 2018-11-06 | 中国石油天然气集团有限公司 | A kind of mining system and method for seabed combustible ice |
-
2009
- 2009-10-30 CN CN2009202464471U patent/CN201517369U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800000B (en) * | 2009-10-30 | 2011-08-03 | 中国石油天然气股份有限公司 | Multi-angle horizontal branch well natural gas exploitation simulator |
| CN103015985A (en) * | 2012-12-21 | 2013-04-03 | 中国石油大学(北京) | Two-dimensional visual simulation device for inflow performances of horizontal well and vertical well |
| CN104499938A (en) * | 2014-10-24 | 2015-04-08 | 湖南五新重型装备有限公司 | Load simulation device of horizontal directional drilling machine |
| CN104499938B (en) * | 2014-10-24 | 2017-05-24 | 湖南五新隧道智能装备股份有限公司 | Load simulation device of horizontal directional drilling machine |
| CN108756827A (en) * | 2018-05-17 | 2018-11-06 | 中国石油天然气集团有限公司 | A kind of mining system and method for seabed combustible ice |
| CN108756827B (en) * | 2018-05-17 | 2021-08-03 | 中国石油天然气集团有限公司 | Exploitation system and method for seabed combustible ice |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100630 Effective date of abandoning: 20091030 |