CN104675369A - Sand control sieve pipe and manufacturing method of sand control sieve pipe - Google Patents
Sand control sieve pipe and manufacturing method of sand control sieve pipe Download PDFInfo
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- CN104675369A CN104675369A CN201510076352.XA CN201510076352A CN104675369A CN 104675369 A CN104675369 A CN 104675369A CN 201510076352 A CN201510076352 A CN 201510076352A CN 104675369 A CN104675369 A CN 104675369A
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- tube
- connecting ring
- screen pack
- base tube
- sand control
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- 239000004576 sand Substances 0.000 title claims abstract description 131
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 238000001914 filtration Methods 0.000 claims abstract description 103
- 238000000034 method Methods 0.000 claims abstract description 58
- 238000003466 welding Methods 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 9
- 238000004080 punching Methods 0.000 claims description 31
- 230000004308 accommodation Effects 0.000 claims description 13
- 229910000679 solder Inorganic materials 0.000 claims description 13
- 238000003754 machining Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 abstract description 9
- 230000009467 reduction Effects 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000004804 winding Methods 0.000 abstract 1
- 239000011148 porous material Substances 0.000 description 12
- 230000008859 change Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 239000003129 oil well Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 210000002268 wool Anatomy 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000004927 clay Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- -1 mechanical admixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000009288 screen filtration Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
- E21B43/086—Screens with preformed openings, e.g. slotted liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
- E21B43/084—Screens comprising woven materials, e.g. mesh or cloth
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Filtering Materials (AREA)
Abstract
The invention provides a sand control sieve pipe and a manufacturing method of the sand control sieve pipe, relates to the field of petroleum equipment and mainly aims at reducing the pipe diameter of the sand control sieve pipe. The sand control sieve pipe comprises a base pipe and a filtering component, wherein a through hole is formed in the pipe wall of the base pipe, the filtering component comprises a layer of filtering screen, the filtering screen is provided with an open hole with the first dimension hole diameter, the first side edge of the filtering screen and the second side edge of the filtering screen are welded through a welding process for forming a first sleeve structure, and the first sleeve structure is arranged on the outer side of the base pipe in a sleeving way for forming a first filtering layer of the base pipe. The hole diameter dimension of an open hole formed by welding the open hole formed in the first side edge part of the filtering screen with the open hole formed in the second side edge part of the filtering screen is smaller than or equal to the first dimension. Compared with a structural mode of winding 2 to 5 coils of metal screens on the periphery of the base pipe in the prior art, the sand control sieve pipe and the manufacturing method have the advantages that the pipe diameter of the sand control sieve pipe can be reduced, the sand control sieve pipe after the pipe diameter reduction can be put into an oil gas well hole. In addition, the seepage rate and the anti-blocking capability of the sand control sieve pipe can also be improved.
Description
Technical field
The present invention relates to oil equipment field, particularly relate to the manufacture method of the less sand control screen of a kind of diameter and sand control screen.
Background technology
Sand production in oil is that it is relevant with the factor such as cementing strength, stress state, mining conditions, well water of rock because the rock texture of pre-bore destroys the phenomenon caused.In field of petroleum exploitation, particularly in loose oil-gas reservoir exploitation, usually phenomenon of shaking out can be attended by.Sand production of oil-gas wells can cause formation depletion, formation collapse, damages sleeve pipe; The oil well underproduction is caused to stop production; Enhance faster wear down-hole string, instrument and ground installation; Increase crude Treatment difficulty; Increase the problems such as environment pollution and transport processing.
At present, oil, gas well anti-sand method are a lot, according to sand control principle, roughly can be divided into arch sand control, chemical sand control, heating power coking sand control, mechanical sand control, composite sand prevention and other anti-sand method.In mechanical sand control technique, usually use sand control screen as the instrument of sand control.In oil well production process, enter under described sand control screen in the well of oil well, when surrounding formation fluid carries the materials such as stratum fine sand, mechanical admixture, clay shale by described sand control screen, particulate matter in fluid is blocked in external discrete by described sand control screen, and fluid flow to ground by described sand control screen.Wherein, the sand control screen used in oil well mainly contains following several:
1, slotted liner: be cut out many gaps according to necessarily putting in order to form on sleeve pipe or oil pipe, perforated area (or area of passage) generally only has 2% ~ 6%.Slotted liner is usually used in that cementing strength is high, shake out few reservoir, to prevent cave-in for main purpose, so be bushing pipe.
2, wire-wrapped screen: primarily of base tube and screen jacket two parts composition, area of passage is 15% ~ 30%, can be used in the reservoir of various lithology., the clastic reservoir rock of easily shaking out low at cementing strength usually want and gravel pack with the use of, be called for short gravel filling sand prevention.Gravel filling sand prevention effective, the life-span is long, but complex process, the engineering time is long, easily pollutes near wellbore zone reservoir, and when constructing in high angle hole and horizontal well, success rate is low.
3, metal wool screen casing: the water environment capacity of metal wool is higher.When using metal wool screen sand control, do not do gravel pack, this, simplifies construction technology, shorten the engineering time.In recent years, in high angle hole and horizontal well sand control, metal wool screen casing obtains a wide range of applications.Metal wool screen casing also has its weak point, when fine sand, flour sand, reservoir that viscous crude, clay content are high use, still there is blockage problem.
4, wire lath screen casing: form primarily of base tube and 2 ~ 5 layers of wire lath be wrapped in outside base tube, area of passage is 25% ~ 35%, and its purposes, performance and problem and wire-wrapped screen are closely.
Wherein, on wire lath screen casing, 2 ~ 5 layers of wire lath of base tube parcel on base tube, are wound around 2 ~ 5 volumes by a wire lath and surround, add the diameter of wire lath screen casing, in order to by the well of wire lath screen insertion oil well, need to create wider well, with by wire lath screen casing lower going-into-well eye larger for diameter, add the cost of oil exploitation.
Summary of the invention
In view of this, the invention provides the manufacture method of a kind of sand control screen and sand control screen, main purpose is the caliber reducing sand control screen, so that enter Oil/gas Well intraocular by under the sand control screen of reduction caliber.
For achieving the above object, the present invention mainly provides following technical scheme:
On the one hand, embodiments of the invention provide a kind of sand control screen to comprise:
Base tube, the tube wall of described base tube is provided with through hole;
Filter element, described filter element comprises one deck screen pack, described screen pack has the perforate in first size aperture, the first side of described screen pack and the second side of described screen pack are welded by welding procedure and are formed first set barrel structure, and the outside that described first set barrel structure is set in described base tube constitutes the first filtration beds of described base tube;
Wherein, the first side of described screen pack is the relative side of the second side of described screen pack;
At the solder joint place of described first set barrel structure, the aperture size of the perforate be welded by the perforate at the perforate of the first side of described screen pack and the second side place of described screen pack is less than or equal to described first size.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Optionally, aforesaid sand control screen, wherein said filter element comprises one deck seepage flow net, and described seepage flow netting gear has the perforate in the second size aperture, and described seepage flow net volume becomes the second tube-in-tube structure, and described second tube-in-tube structure is set in outside described base tube;
Wherein, described seepage flow net is between the outside of described base tube and described screen pack, and described second size aperture is greater than described first size aperture.
Optionally, aforesaid sand control screen, wherein said screen pack is wire net;
And/or
Described seepage flow net is metal wire knitted square hole net.
Optionally, aforesaid sand control screen, wherein
Also comprise:
Be positioned at the connecting ring of described filter element both sides;
Described filter element also comprises filtration protection tube, and the tube wall of described filtration protection tube is provided with calking;
Described base tube, described screen pack, described seepage flow net are located in described filtration protection tube, and described filtration protection tube constitutes the second filtration beds of described base tube;
Described connecting ring is located in the both sides of described base tube, and the inner ring of described connecting ring and the outer wall of described base tube are welded and fixed, and the outer shroud/sidewall of described connecting ring welds with the two ends of described filtration protection tube.
Optionally, aforesaid sand control screen, wherein
Punching stay pipe is provided with between described base tube and described filter element;
Described connecting ring comprises the first group of connecting ring and second group of connecting ring that lay respectively at described filter element both sides;
Described first group of connecting ring is provided with first the organizing a performance terrace, second the organizing a performance terrace of tube wall second distance apart from described base tube of tube wall first distance apart from described base tube, described second distance is greater than described first distance;
Described first group of connecting ring is connected with the tube wall of described base tube;
The both sides of the seepage flow net of described filter element are arranged on first of described first group of connecting ring and organize a performance on terrace;
The both sides of the screen pack of described filter element are arranged on second of described first group of connecting ring and organize a performance on terrace;
Described second group of connecting ring is provided with the 3rd the organizing a performance terrace of tube wall the 3rd distance apart from described base tube, described 3rd distance is greater than described second distance;
Described second group of connecting ring is connected with the tube wall of described base tube;
Described filtration protection tube is arranged on the 3rd of described second group of connecting ring and organizes a performance on terrace;
Described second group of connecting ring, described filtration protection tube and described base tube cross spatial accommodation;
Described punching stay pipe, described filtration first floor, described seepage flow net and described first group of connecting ring are positioned at described spatial accommodation.
On the other hand, embodiments of the invention provide a kind of manufacture method of sand control screen, comprising:
The first set barrel structure being formed and have screen pack described in one deck is welded in the second side of the first side with described screen pack with the screen pack of first size aperture by welding procedure, using first filtration beds of described first set barrel structure as filter element;
Described filter element is set on base tube;
Wherein, at the solder joint place of described first set barrel structure, the aperture size of the perforate be welded by the perforate at the perforate of the first side of described screen pack and the second side place of described screen pack is less than or equal to described first size, and the first side of described screen pack is the relative side of the second side of described screen pack.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Optionally, the manufacture method of aforesaid sand control screen, wherein
Also comprise:
The seepage flow net volume with the second size aperture is become the second tube-in-tube structure, and described second tube-in-tube structure is as the seepage flow layer of described filter element;
Described seepage flow is placed on the inner side of described first filtration beds;
Wherein, described second size aperture is greater than described first size aperture.
Optionally, the manufacture method of aforesaid sand control screen, wherein
Described filter element also comprises: filter protection tube and punching stay pipe; Accordingly, described described filter element is set on base tube, is specially:
Described seepage flow layer and described first filtration beds are welded on the outer wall of described punching stay pipe by a welding procedure;
The described punching stay pipe being welded with described seepage flow layer and described first filtration beds is set on described base tube;
The sheathed described filtration protection tube in the outside of described first filtration beds;
Wherein, between described first filtration beds and described filtration protection tube, there is predeterminable range.
Optionally, the manufacture method of aforesaid sand control screen, wherein
Also comprise:
Wear connecting ring in the both sides of going up in the axial direction of described base tube, make connecting ring be positioned at the both sides of described first filtration beds;
The outer wall of the inner ring of described connecting ring and described base tube is welded and fixed, the two ends of the outer shroud/sidewall of described connecting ring with described filtration protection tube are welded.
Optionally, the manufacture method of aforesaid sand control screen, wherein
On first group of connecting ring of described connecting ring, machining is apart from first the organizing a performance terrace, second the organizing a performance terrace of tube wall second distance apart from described base tube of tube wall first distance of described base tube, and described second distance is greater than described first distance;
Described first group of connecting ring is welded with the tube wall of described base tube;
The both sides of the seepage flow net of described filter element are wrapped in first of described first group of connecting ring organizes a performance on terrace;
The both sides of the screen pack of described filter element being wrapped in second of described first group of connecting ring organizes a performance on terrace;
On second group of connecting ring of described connecting ring, machining is apart from the 3rd the organizing a performance terrace of tube wall the 3rd distance of described base tube, and described 3rd distance is greater than described second distance;
Described second group of connecting ring is connected with the tube wall of described base tube;
The both sides of described filtration protection tube are arranged on the 3rd of described second group of connecting ring organizes a performance on terrace; make described second group of connecting ring, described filtration protection tube and described base tube cross spatial accommodation, described punching stay pipe, described first filtration beds, described seepage flow net and described first group of connecting ring are positioned at described spatial accommodation.
By technique scheme, the manufacture method of the sand control screen that technical solution of the present invention provides and sand control screen at least has following advantages:
One, the tube wall of the base tube of sand control screen that technical solution of the present invention provides is provided with through hole, filter element includes one deck screen pack, described screen pack has the perforate in first size aperture, the first side of described screen pack and the second side of described screen pack are welded by welding procedure and are formed first set barrel structure, and the outside that described first set barrel structure is set in described base tube constitutes the first filtration beds of described base tube.Wherein, the first side of described screen pack is the relative side of the second side of described screen pack.At the solder joint place of described first set barrel structure, the aperture size of the perforate be welded by the perforate at the perforate of the first side of described screen pack and the second side place of described screen pack is less than or equal to described first size.Relative in prior art, the frame mode of the wire lath of 2 ~ 5 volumes is wound around in described base tube periphery, change into and one deck screen pack is set outside base tube, the first set barrel structure into tubular is rolled into by screen pack, when welding first side and second side, control the pore size of the perforate that described first side and described second side weld are newly formed, meet the new open pore size formed and be less than described first size.In the base tube situation adopting same size, the sand control capability of sand control screen can not be reduced, the caliber of sand control screen can be reduced in addition, be convenient to enter Oil/gas Well intraocular by under the sand control screen of reduction caliber.
Two, the tube wall of the base tube of sand control screen that technical solution of the present invention provides is provided with through hole, filter element includes one deck screen pack, described screen pack has the perforate in first size aperture, the first side of described screen pack and the second side of described screen pack are welded by welding procedure and are formed first set barrel structure, and the outside that described first set barrel structure is set in described base tube constitutes the first filtration beds of described base tube.Wherein, the first side of described screen pack is the relative side of the second side of described screen pack.At the solder joint place of described first set barrel structure, the aperture size of the perforate be welded by the perforate at the perforate of the first side of described screen pack and the second side place of described screen pack is less than or equal to described first size.Relative in prior art, when described base tube periphery is wound around the frame mode of the wire lath of 2 ~ 5 volumes, the oil leaking hole of the tube-in-tube structure that the wire lath of 2 ~ 5 volumes is formed can be superimposed mutually, differ in the position of the oil leaking hole of mutual superposition, the size of the oil leaking hole after superposing can be caused to diminish, and it is uneven, make the permeance property of sand control screen unstable, and it is poor, change into and one deck screen pack is set outside base tube, the first set barrel structure into tubular is rolled into by screen pack, when welding first side and second side, control the pore size of the perforate that described first side and described second side weld are newly formed, meet the new open pore size formed and be less than described first size.The sand control screen that technical solution of the present invention provides can make the perforate in the first size aperture on described first set barrel structure relative to comparatively even by the oil leaking hole of the tube-in-tube structure formed of the wire lath of 2 ~ 5 volumes in prior art, improves the permeability of sand control screen, anti-stifled ability.
Three, the tube wall of the base tube of sand control screen that technical solution of the present invention provides is provided with through hole, filter element includes one deck screen pack, described screen pack has the perforate in first size aperture, the first side of described screen pack and the second side of described screen pack are welded by welding procedure and are formed first set barrel structure, and the outside that described first set barrel structure is set in described base tube constitutes the first filtration beds of described base tube.Wherein, the first side of described screen pack is the relative side of the second side of described screen pack.At the solder joint place of described first set barrel structure, the aperture size of the perforate be welded by the perforate at the perforate of the first side of described screen pack and the second side place of described screen pack is less than or equal to described first size.Relative in prior art, the frame mode of the wire lath of 2 ~ 5 volumes is wound around in described base tube periphery, change into and one deck screen pack is set outside base tube, the first set barrel structure into tubular is rolled into by screen pack, when welding first side and second side, control the pore size of the perforate that described first side and described second side weld are newly formed, meet the new open pore size formed and be less than described first size.In the base tube situation adopting same size, the sand control screen that technical solution of the present invention provides can simplify structure, saves and produces material, reduces cost of production.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of manual, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred embodiment, and does not think limitation of the present invention.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Fig. 1 is the structural representation of a kind of sand control screen that embodiments of the invention one provide;
Fig. 2 is the structure for amplifying schematic diagram of A in Fig. 1;
Fig. 3 is the structure for amplifying schematic diagram of B in Fig. 1;
Fig. 4 is the process flow diagram of the manufacture method of a kind of sand control screen that embodiments of the invention two provide;
Fig. 5 is the process flow diagram of the manufacture method of a kind of concrete sand control screen that embodiments of the invention two provide.
Detailed description of the invention
The present invention solves the problem that in prior art, sand control screen caliber is larger, provides the manufacture method of a kind of sand control screen and sand control screen, with at the caliber reducing sand control screen, so that enter Oil/gas Well intraocular by under the sand control screen of reduction caliber.
The technical scheme of the embodiment of the present invention is for solving the problems of the technologies described above, and general thought is as follows:
A kind of sand control screen provided by the invention comprises:
Base tube, the tube wall of described base tube is provided with through hole;
Filter element, described filter element comprises one deck screen pack, described screen pack has the perforate in first size aperture, the first side of described screen pack and the second side of described screen pack are welded by welding procedure and are formed first set barrel structure, and the outside that described first set barrel structure is set in described base tube constitutes the first filtration beds of described base tube;
Wherein, the first side of described screen pack is the relative side of the second side of described screen pack;
At the solder joint place of described first set barrel structure, the aperture size of the perforate be welded by the perforate at the perforate of the first side of described screen pack and the second side place of described screen pack is less than or equal to described first size.
The manufacture method of a kind of sand control screen provided by the invention comprises:
The first set barrel structure being formed and have screen pack described in one deck is welded in the second side of the first side with described screen pack with the screen pack of first size aperture by welding procedure, using first filtration beds of described first set barrel structure as filter element;
Described filter element is set on base tube;
Wherein, at the solder joint place of described first set barrel structure, the aperture size of the perforate be welded by the perforate at the perforate of the first side of described screen pack and the second side place of described screen pack is less than or equal to described first size, and the first side of described screen pack is the relative side of the second side of described screen pack.
The tube wall of the base tube of the sand control screen that technical solution of the present invention provides is provided with through hole, filter element includes one deck screen pack, described screen pack has the perforate in first size aperture, the first side of described screen pack and the second side of described screen pack are welded by welding procedure and are formed first set barrel structure, and the outside that described first set barrel structure is set in described base tube constitutes the first filtration beds of described base tube.Wherein, the first side of described screen pack is the relative side of the second side of described screen pack.At the solder joint place of described first set barrel structure, the aperture size of the perforate be welded by the perforate at the perforate of the first side of described screen pack and the second side place of described screen pack is less than or equal to described first size.Relative in prior art, the frame mode of the wire lath of 2 ~ 5 volumes is wound around in described base tube periphery, change into and one deck screen pack is set outside base tube, the first set barrel structure into tubular is rolled into by screen pack, when welding first side and second side, control the pore size of the perforate that described first side and described second side weld are newly formed, meet the new open pore size formed and be less than described first size.In the base tube situation adopting same size, the sand control capability of sand control screen can not be reduced, the caliber of sand control screen can be reduced in addition, be convenient to enter Oil/gas Well intraocular by under the sand control screen of reduction caliber.
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, the sand control screen propose foundation the present invention and its detailed description of the invention of manufacture method of sand control screen, structure, feature and effect thereof, be described in detail as follows.In the following description, the not necessarily same embodiment that different " embodiment " or " embodiment " refers to.In addition, special characteristic, structure or feature in one or more embodiment can be combined by any suitable form.
Term "and/or" herein, being only a kind of incidence relation describing affiliated partner, can there are three kinds of relations in expression, such as, A and/or B, concrete is interpreted as: can include A and B simultaneously, can individualism A, also can individualism B, above-mentioned three kinds of arbitrary middle situations can be possessed.
As depicted in figs. 1 and 2, a kind of sand control screen that embodiments of the invention one propose, it comprises: base tube 1 and filter element 2.The tube wall of described base tube 1 is provided with through hole 11.Described filter element 2 comprises one deck screen pack 21, described screen pack 21 has the perforate in first size aperture, the first side of described screen pack 21 and the second side of described screen pack 21 are welded by welding procedure and are formed first set barrel structure, and the outside that described first set barrel structure is set in described base tube 1 constitutes the first filtration beds of described base tube 1.Wherein, the first side of described screen pack 21 is the relative side of the second side of described screen pack 21.At the solder joint place of described first set barrel structure, the aperture size of the perforate be welded by the perforate at the perforate of the first side of described screen pack 21 and the second side place of described screen pack 21 is less than or equal to described first size.Wherein, described base tube can adopt the tubing and casing of API standard, or arranges at steel pipe two ends and connect oil jacket joint, and on steel pipe, offers through hole form.
After in the well entering oil well under described sand control screen, when surrounding formation fluid carries the materials such as stratum fine sand, mechanical admixture, clay shale by described sand control screen, particulate matter in fluid is blocked in sand control screen external discrete by the first filtration beds of described sand control screen, and fluid is by flowing to ground through described base tube after the through hole of the filter element of described sand control screen, described base tube.
The tube wall of the base tube of the sand control screen that the embodiment of the present invention one provides is provided with through hole, filter element includes one deck screen pack, described screen pack has the perforate in first size aperture, the first side of described screen pack and the second side of described screen pack are welded by welding procedure and are formed first set barrel structure, and the outside that described first set barrel structure is set in described base tube constitutes the first filtration beds of described base tube.Wherein, the first side of described screen pack is the relative side of the second side of described screen pack.At the solder joint place of described first set barrel structure, the aperture size of the perforate be welded by the perforate at the perforate of the first side of described screen pack and the second side place of described screen pack is less than or equal to described first size.Relative in prior art, the frame mode of the wire lath of 2 ~ 5 volumes is wound around in described base tube periphery, change into and one deck screen pack is set outside base tube, the first set barrel structure into tubular is rolled into by screen pack, when welding first side and second side, control the pore size of the perforate that described first side and described second side weld are newly formed, meet the new open pore size formed and be less than described first size.In the base tube situation adopting same size, the sand control capability of sand control screen can not be reduced, the caliber of sand control screen can be reduced in addition, be convenient to enter Oil/gas Well intraocular by under the sand control screen of reduction caliber.
In addition, relative in prior art, when described base tube periphery is wound around the frame mode of the wire lath of 2 ~ 5 volumes, oil leaking hole on the wire lath of 2 ~ 5 volumes can be superimposed mutually, differ in the position of the oil leaking hole of mutual superposition, the size of the oil leaking hole after superposing can be caused to diminish, and it is uneven, make the permeance property of sand control screen unstable, and it is poor, change into and one deck screen pack is set outside base tube, the first set barrel structure into tubular is rolled into by screen pack, when welding first side and second side, control the pore size of the perforate that described first side and described second side weld are newly formed, meet the new open pore size formed and be less than described first size.The perforate in the first size aperture on described first set barrel structure can be made comparatively even, improve the permeability of sand control screen, anti-stifled ability.
Meanwhile, in the base tube situation adopting same size, the sand control screen that the embodiment of the present invention one provides can simplify structure, saves and produces material, reduces cost of production.
Further, in order to improve the osmotic effect of sand control screen, as shown in Figure 2, sand control screen described in embodiments of the invention one also provides following embodiment, wherein said filter element comprises one deck seepage flow net 22, described seepage flow net 22 has the perforate in the second size aperture, and described seepage flow net 22 is rolled into the second tube-in-tube structure, and described second tube-in-tube structure is set in outside described base tube 1.Wherein, described seepage flow net is between the outside of described base tube and described screen pack, and described second size aperture is greater than described first size aperture.At independent, the first set barrel structure be made up of described screen pack is set in after on described base tube, due to the limited amount of the through hole on base tube tube wall, cause the area on described screen pack can not be superimposed upon through hole on described base tube tube wall, filter effect is poor.Set up seepage flow net between described base tube and described screen pack after, seepage flow net can play the effect of confluxing, be not superimposed upon the liquid of the filter screen filtration outside described base tube tube wall through hole, the perforate of the second size of described seepage flow net can be flowed to, and flow in the through hole of described base tube, thus increase the permeability of described sand control screen.
Concrete, the sand control screen described in above-described embodiment, described screen pack is wire net, and/or described seepage flow net is metal wire knitted square hole net.
In concrete manufacturing process, also comprise in the sand control screen described in above-described embodiment one: the connecting ring being positioned at described filter element both sides.Described filter element also comprises filtration protection tube, and the tube wall of described filtration protection tube is provided with calking.Described base tube, described screen pack, described seepage flow net are located in described filtration protection tube, and described filtration protection tube constitutes the second filtration beds of described base tube.Described connecting ring is located in the both sides of described base tube, and the inner ring of described connecting ring and the outer wall of described base tube are welded and fixed, and the outer shroud/sidewall of described connecting ring welds with the two ends of described filtration protection tube.Because the material of screen pack is more easily destroyed, described filtration protection tube is for the protection of described screen pack.In addition, described filtration protection tube and described screen pack can also play classified filtering effect.Described connecting ring is for fixing described base tube by filter element.
For the ease of installing, further, as shown in Figures 2 and 3, the sand control screen described in embodiments of the invention one also provides following embodiment, is provided with punching stay pipe 3 between wherein said base tube 1 and described filter element 2.Described connecting ring comprises the first group of connecting ring 41 and second group of connecting ring 42 that lay respectively at described filter element both sides.Described first group of connecting ring 41 is provided with first the organizing a performance terrace 411, second the organizing a performance terrace 412 of tube wall second distance apart from described base tube 1 of tube wall first distance apart from described base tube 1, described second distance is greater than described first distance.Described first group of connecting ring 41 is connected with the tube wall of described base tube 1.The both sides of described filter element 2 seepage flow net 22 are arranged on first of described first group of connecting ring 41 and organize a performance on terrace 411.The both sides of the screen pack 21 of described filter element 2 are arranged on second of described first group of connecting ring 41 and organize a performance on terrace 412.Described second group of connecting ring 42 is provided with the 3rd the organizing a performance terrace 421 of tube wall the 3rd distance apart from described base tube, described 3rd distance is greater than described second distance.Described second group of connecting ring 42 is connected with the tube wall of described base tube 1.Described filtration protection tube 5 is arranged on the 3rd of described second group of connecting ring 42 and organizes a performance on terrace 421.Described second group of connecting ring 42, described filtration protection tube 5 and described base tube 1 cross spatial accommodation.Described punching stay pipe 3, described first filtration beds, described seepage flow net and described first group of connecting ring 41 are positioned at described spatial accommodation.
Carrying out in assembling process to described sand control screen, because the weight of base tube is comparatively large, directly described screen pack, described seepage flow net are being wrapped up and are being welded in base tube process, operation is inconvenience comparatively.Thus, can first screen pack, seepage flow net be welded on the less punching stay pipe of quality, and then be enclosed within base tube by punching stay pipe, be convenient to assembling filter net, seepage flow net.In concrete assembling link, described filtration seepage flow net, screen pack are wrapped on described punching stay pipe successively.Again described punching stay pipe is arranged on outside the tube wall of described base tube.Described connecting ring is set to two groups, first group of connecting ring is located on described base tube, to the both sides being pressed in described punching stay pipe, described seepage flow net both sides are wrapped in first of described first group of connecting ring organizes a performance on terrace, the both sides of described screen pack is wrapped in second of described first group of connecting ring and organizes a performance on terrace.Afterwards; again described filtration protection tube is located in outside described base tube; second group of connecting ring to be located on described base tube, and to being pressed in the both sides of described filtration protection tube, and to make described filtration protection tube be arranged on the 3rd of described second group of connecting ring to organize a performance on terrace.Described punching stay pipe, described first filtration beds, described seepage flow net and described first group of connecting ring are positioned at and cross spatial accommodation by described second group of connecting ring, described filtration protection tube and described base tube.Namely the assembling of sand control screen is completed.Fixed form wherein can adopt and be welded to connect.Connecting ring is divided into two parts; first group of connecting ring is used for fixing screen pack and seepage flow net, and second group of connecting ring is used for fixingly filtering protection tube, relative to being that employing a pair connecting ring is arranged on described filtration protection tube both sides; the assembling of sand control screen can be convenient to, improve the efficiency of assembling.
Wherein, when screen pack and seepage flow net being fixed on described punching stay pipe, can welding procedure be adopted, screen pack and seepage flow net are welded on punching stay pipe.Described punching stay pipe has through hole, and described punching stay pipe is provided with the weld zone for welding seepage flow net and screen pack and the aperture area for offering through hole.Need the butted part of welding to be wound to the weld zone of described punching stay pipe described screen pack and described seepage flow net, then weld.
As shown in Figure 4, the embodiment of the present invention two provides a kind of manufacture method of sand control screen, comprising:
100, the first set barrel structure being formed and have screen pack described in one deck is welded in the second side of the first side with described screen pack with the screen pack of first size aperture by welding procedure, using first filtration beds of described first set barrel structure as filter element;
200, described filter element is set on base tube.
Wherein, at the solder joint place of described first set barrel structure, the aperture size of the perforate be welded by the perforate at the perforate of the first side of described screen pack and the second side place of described screen pack is less than or equal to described first size, and the first side of described screen pack is the relative side of the second side of described screen pack.
The sand control screen that the manufacture method of the sand control screen that the embodiment of the present invention two provides is made, in the base tube situation adopting same size, the sand control capability of sand control screen can not be reduced, the caliber of sand control screen can be reduced in addition, be convenient to enter Oil/gas Well intraocular by under the sand control screen of reduction caliber.
In the manufacture method of the sand control screen of above-described embodiment, " the first set barrel structure being formed and have screen pack described in one deck is welded in the second side of the first side with described screen pack with the screen pack of first size aperture by welding procedure ", concrete welding process is:
First kind of way: docked the second side of the first side of described screen pack with described screen pack, welds the second side of the first side of described screen pack with described screen pack afterwards;
The second way: superposed the second side of the first side of described screen pack with described screen pack, welds the second side of the first side of described screen pack with described screen pack afterwards.
Further, in order to improve the permeance property of sand control screen, as shown in Figure 5, the manufacture method of above-mentioned sand control screen also comprises:
300, the seepage flow net volume with the second size aperture is become the second tube-in-tube structure, described second tube-in-tube structure is as the seepage flow layer of described filter element;
Described seepage flow is placed on the inner side of described first filtration beds.
Wherein, described second size aperture is greater than described first size aperture.
In order to protect filtration beds, the manufacture method of above-mentioned sand control screen, described filter element also comprises: filter protection tube and punching stay pipe; Accordingly, described described filter element is set on base tube, is specially:
Described seepage flow layer and described first filtration beds are welded on the outer wall of described punching stay pipe by a welding procedure;
The described punching stay pipe being welded with described seepage flow layer and described first filtration beds is set on described base tube;
The sheathed described filtration protection tube in the outside of described first filtration beds;
Wherein, between described first filtration beds and described filtration protection tube, there is predeterminable range.
Described predeterminable range be greater than zero numerical value.Described filtration protection tube be subject to external force bending after, can not directly touch the screen pack being positioned at described filtration protection tube.
One time welding procedure refers in welding process, described seepage flow layer and the first filtration beds is welded on described punching stay pipe simultaneously.Seepage flow layer being wrapped in after on described punching stay pipe, when being wound around screen pack, needing the region of welding to need the region of welding to superpose with described seepage flow layer screen pack, can once weld.
Carrying out in assembling process to described sand control screen, the manufacture method of above-mentioned sand control screen also comprises:
Wear connecting ring in the both sides of going up in the axial direction of described base tube, make connecting ring be positioned at the both sides of described first filtration beds;
The outer wall of the inner ring of described connecting ring and described base tube is welded and fixed, the two ends of the outer shroud/sidewall of described connecting ring with described filtration protection tube are welded.
Manufacture in link concrete, the manufacture method of above-mentioned sand control screen,
On first group of connecting ring of described connecting ring, machining is apart from first the organizing a performance terrace, second the organizing a performance terrace of tube wall second distance apart from described base tube of tube wall first distance of described base tube, and described second distance is greater than described first distance;
Described first group of connecting ring is welded with the tube wall of described base tube;
The both sides of the seepage flow net of described filter element are wrapped in first of described first group of connecting ring organizes a performance on terrace;
The both sides of the screen pack of described filter element being wrapped in second of described first group of connecting ring organizes a performance on terrace;
On second group of connecting ring of described connecting ring, machining is apart from the 3rd the organizing a performance terrace of tube wall the 3rd distance of described base tube, and described 3rd distance is greater than described second distance;
Described second group of connecting ring is connected with the tube wall of described base tube;
The both sides of described filtration protection tube are arranged on the 3rd of described second group of connecting ring organizes a performance on terrace; make described second group of connecting ring, described filtration protection tube and described base tube cross spatial accommodation, described punching stay pipe, described first filtration beds, described seepage flow net and described first group of connecting ring are positioned at described spatial accommodation.
Wherein, the described first interface, described second terrace, the described 3rd terrace of organizing a performance of organizing a performance of organizing a performance is anchor ring.
Organize a performance after on terrace the both sides of screen pack being wrapped in second of described first group of connecting ring, can second organize a performance terrace a chow ring on weld, the both sides of screen pack are welded on second and organize a performance on terrace.
Be arranged on the 3rd of described second group of connecting ring organizing a performance filtering the both sides of protection tube after on terrace, can the 3rd organize a performance terrace a chow ring on weld, the both sides of filtering protection tube are welded on the 3rd and organize a performance on terrace.
" first ", " second ", " the 3rd " in above-described embodiment etc. are for distinguishing each embodiment, and do not represent the quality of each embodiment.
The above, it is only preferred embodiment of the present invention, not do any pro forma restriction to the present invention, any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a sand control screen, is characterized in that, comprising:
Base tube, the tube wall of described base tube is provided with through hole;
Filter element, described filter element comprises one deck screen pack, described screen pack has the perforate in first size aperture, the first side of described screen pack and the second side of described screen pack are welded by welding procedure and are formed first set barrel structure, and the outside that described first set barrel structure is set in described base tube constitutes the first filtration beds of described base tube;
Wherein, the first side of described screen pack is the relative side of the second side of described screen pack;
At the solder joint place of described first set barrel structure, the aperture size of the perforate be welded by the perforate at the perforate of the first side of described screen pack and the second side place of described screen pack is less than or equal to described first size.
2. sand control screen according to claim 1, is characterized in that,
Described filter element comprises one deck seepage flow net, and described seepage flow netting gear has the perforate in the second size aperture, and described seepage flow net volume becomes the second tube-in-tube structure, and described second tube-in-tube structure is set in outside described base tube;
Wherein, described seepage flow net is between the outside of described base tube and described screen pack, and described second size aperture is greater than described first size aperture.
3. sand control screen according to claim 2, is characterized in that,
Described screen pack is wire net;
And/or
Described seepage flow net is metal wire knitted square hole net.
4. sand control screen according to claim 2, is characterized in that, also comprises:
Be positioned at the connecting ring of described filter element both sides;
Described filter element also comprises filtration protection tube, and the tube wall of described filtration protection tube is provided with calking;
Described base tube, described screen pack, described seepage flow net are located in described filtration protection tube, and described filtration protection tube constitutes the second filtration beds of described base tube;
Described connecting ring is located in the both sides of described base tube, and the inner ring of described connecting ring and the outer wall of described base tube are welded and fixed, and the outer shroud/sidewall of described connecting ring welds with the two ends of described filtration protection tube.
5. sand control screen according to claim 4, is characterized in that,
Punching stay pipe is provided with between described base tube and described filter element;
Described connecting ring comprises the first group of connecting ring and second group of connecting ring that lay respectively at described filter element both sides;
Described first group of connecting ring is provided with first the organizing a performance terrace, second the organizing a performance terrace of tube wall second distance apart from described base tube of tube wall first distance apart from described base tube, described second distance is greater than described first distance;
Described first group of connecting ring is connected with the tube wall of described base tube;
The both sides of the seepage flow net of described filter element are arranged on first of described first group of connecting ring and organize a performance on terrace;
The both sides of the screen pack of described filter element are arranged on second of described first group of connecting ring and organize a performance on terrace;
Described second group of connecting ring is provided with the 3rd the organizing a performance terrace of tube wall the 3rd distance apart from described base tube, described 3rd distance is greater than described second distance;
Described second group of connecting ring is connected with the tube wall of described base tube;
Described filtration protection tube is arranged on the 3rd of described second group of connecting ring and organizes a performance on terrace;
Described second group of connecting ring, described filtration protection tube and described base tube cross spatial accommodation;
Described punching stay pipe, described first filtration beds, described seepage flow net and described first group of connecting ring are positioned at described spatial accommodation.
6. a manufacture method for sand control screen, is characterized in that, comprising:
The first set barrel structure being formed and have screen pack described in one deck is welded in the second side of the first side with described screen pack with the screen pack of first size aperture by welding procedure, using first filtration beds of described first set barrel structure as filter element;
Described filter element is set on base tube;
Wherein, at the solder joint place of described first set barrel structure, the aperture size of the perforate be welded by the perforate at the perforate of the first side of described screen pack and the second side place of described screen pack is less than or equal to described first size, and the first side of described screen pack is the relative side of the second side of described screen pack.
7. the manufacture method of sand control screen according to claim 6, is characterized in that, also comprises:
The seepage flow net volume with the second size aperture is become the second tube-in-tube structure, and described second tube-in-tube structure is as the seepage flow layer of described filter element;
Described seepage flow is placed on the inner side of described first filtration beds;
Wherein, described second size aperture is greater than described first size aperture.
8. the manufacture method of sand control screen according to claim 8, is characterized in that, described filter element also comprises: filter protection tube and punching stay pipe; Accordingly, described described filter element is set on base tube, is specially:
Described seepage flow layer and described first filtration beds are welded on the outer wall of described punching stay pipe by a welding procedure;
The described punching stay pipe being welded with described seepage flow layer and described first filtration beds is set on described base tube;
The sheathed described filtration protection tube in the outside of described first filtration beds;
Wherein, between described first filtration beds and described filtration protection tube, there is predeterminable range.
9. the manufacture method of sand control screen according to claim 8, is characterized in that, also comprises:
Wear connecting ring in the both sides of going up in the axial direction of described base tube, make connecting ring be positioned at the both sides of described first filtration beds;
The outer wall of the inner ring of described connecting ring and described base tube is welded and fixed, the two ends of the outer shroud/sidewall of described connecting ring with described filtration protection tube are welded.
10. the manufacture method of sand control screen according to claim 9, is characterized in that,
On first group of connecting ring of described connecting ring, machining is apart from first the organizing a performance terrace, second the organizing a performance terrace of tube wall second distance apart from described base tube of tube wall first distance of described base tube, and described second distance is greater than described first distance;
Described first group of connecting ring is welded with the tube wall of described base tube;
The both sides of the seepage flow net of described filter element are wrapped in first of described first group of connecting ring organizes a performance on terrace;
The both sides of the screen pack of described filter element being wrapped in second of described first group of connecting ring organizes a performance on terrace;
On second group of connecting ring of described connecting ring, machining is apart from the 3rd the organizing a performance terrace of tube wall the 3rd distance of described base tube, and described 3rd distance is greater than described second distance;
Described second group of connecting ring is connected with the tube wall of described base tube;
The both sides of described filtration protection tube are arranged on the 3rd of described second group of connecting ring organizes a performance on terrace; make described second group of connecting ring, described filtration protection tube and described base tube cross spatial accommodation, described punching stay pipe, described first filtration beds, described seepage flow net and described first group of connecting ring are positioned at described spatial accommodation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510076352.XA CN104675369A (en) | 2015-02-12 | 2015-02-12 | Sand control sieve pipe and manufacturing method of sand control sieve pipe |
| PCT/CN2015/081646 WO2016127534A1 (en) | 2015-02-12 | 2015-06-17 | Sand prevention screen pipe and method for manufacturing same |
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| CN201510076352.XA CN104675369A (en) | 2015-02-12 | 2015-02-12 | Sand control sieve pipe and manufacturing method of sand control sieve pipe |
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| WO (1) | WO2016127534A1 (en) |
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