CN108131109A - Sidetracking radial well window opening tool and method - Google Patents
Sidetracking radial well window opening tool and method Download PDFInfo
- Publication number
- CN108131109A CN108131109A CN201711344612.2A CN201711344612A CN108131109A CN 108131109 A CN108131109 A CN 108131109A CN 201711344612 A CN201711344612 A CN 201711344612A CN 108131109 A CN108131109 A CN 108131109A
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- China
- Prior art keywords
- pipe nipple
- card slot
- steering gear
- sidetracking
- claw
- Prior art date
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/06—Cutting windows, e.g. directional window cutters for whipstock operations
Abstract
The invention discloses a kind of sidetracking radial well window opening tool and method, which includes：Steering gear, abradant jet pipe nipple, nozzle, card slot pipe nipple, claw pipe nipple and orienting device, the cone-shaped cavity for setting card slot pipe nipple and the steering slideway for setting abradant jet pipe nipple are formed on the inside of steering gear, the lower end of steering gear can be coordinated by way of rotation connection with tubing anchor；Abradant jet pipe nipple has opposite arrival end and the port of export, and arrival end is mutually fixed with card slot pipe nipple, port of export connection nozzle；The outside of card slot pipe nipple mutually seals cooperation with steering gear, and the inside of card slot pipe nipple can be matched with claw pipe nipple；The upper end of claw pipe nipple is connected with coiled tubing；Orienting device includes the orientation lever being connect with steering gear and the directional tube being set in outside orientation lever.The present invention can not only smoothly complete windowing by abradant jet, and can also greatly improve sidetracking radial well operating efficiency.
Description
Technical field
The present invention relates to water-jet radially horizontal well technical field, more particularly to a kind of sidetracking radial well window opening tool and
Method.
Background technology
In recent years, east China oil gas field generally enters exploitation later stage, stable yields arduous task.It is low in added reserves
Hole, hypotonic, low mobility ratio clostridium difficitis account for larger specific gravity, it is difficult to exploited using routine techniques.In addition, China's coal bed gas resource
It is abundant, but be mostly special hypotonic, low pressure adsorbed gas, conventional hydraulic fracturing technology can not form in coal seam reservoirs stablizes long crack,
It is difficult cost-effective exploitation.Therefore, there is an urgent need for a kind of technological means of safe and efficient economy to exploit above type of resource, to protect
Demonstrate,prove Chinese energy safety.
Super short radius horizontal well technology (sidetracking radially horizontal well technology) is one to grow up in recent decades
Novel oilfield yield-increasing technology.The technology can radially drill out in vertical boreholes in one or more levels to be radially distributed
The horizontal eyelets of one or more, contaminated zone near well can be penetrated, greatly increase drainage radius, be the one kind for improving well yield
Effective way.The technology realizes safe and efficient drilling well, and operating cost is greatly saved, increase production especially suitable for old filed,
The exploitation of special oil reservoir and coal bed gas.
At present mainly universal joint drive is driven using screw motor in casing window sidetracking radially horizontal well technology both at home and abroad
Alloy mechanical drill bit opens a window.The technology can drill out multiple radial level wellbores in underground, but often bore a radial direction wellbore, need
It makes a trip twice, duty cycle is longer, and operation procedure is complex.In addition, if operation well section takes more complicated completion
Mode such as using wire-wrapped screen sand control technique, then when opening a window, is easily destroyed mechanical drill tooth or even easily will appear bit freezing
The phenomenon that.For example, when currently used mechanical drill breaks screen casing, to hold since there are eyelets, drill teeth on screen casing tube body
The phenomenon that causing bit freezing phenomenon or tooth wear is caused even to fall easily is stuck at eyelet, leads to the efficiency reduction that opens a window, seriously
Situation can lead to not open a window.
Therefore, it is necessary to a kind of novel sidetracking radial well window opening tool is provided, to overcome at least one of prior art
Defect.
Invention content
The object of the present invention is to provide a kind of sidetracking radial well window opening tool and methods, can overcome of the prior art lack
It falls into, while windowing is smoothly completed by abradant jet, primary lower bore can complete all predetermined holes in same layer position simultaneously
Windowing task reduces the number that makes a trip, and improves sidetracking radial well operating efficiency.
Following technical proposal can be used to realize in the above-mentioned purpose of the present invention：
A kind of sidetracking radial well window opening tool, including：Steering gear, abradant jet pipe nipple, nozzle, card slot pipe nipple, claw
Pipe nipple and orienting device,
Cone-shaped cavity for setting the card slot pipe nipple is formed on the inside of the steering gear and for setting the mill
Expect the steering slideway of jet stream pipe nipple, the lower end of the steering gear can be coordinated by way of rotation connection with tubing anchor；
The abradant jet pipe nipple is arranged in the steering slideway, and the abradant jet pipe nipple has opposite arrival end
With the port of export, the arrival end is mutually fixed with the card slot pipe nipple, and the port of export is connected with the nozzle；
The outside of the card slot pipe nipple mutually seals cooperation with the steering gear, sets on the top of the steering gear, described
The inside of card slot pipe nipple can be matched with the claw pipe nipple, form docking mechanism；
The upper end of the claw pipe nipple is connected with coiled tubing；
The orienting device includes the orientation lever being connect with the steering gear and the directional tube being set in outside the orientation lever,
Direct orbit is provided on the outer wall of the orientation lever, threaded hole is provided on the directional tube, is provided in the threaded hole
Bolt is oriented, the orientation bolt is caught in the direct orbit, and can carry out the movement that switches tracks.
In one preferred embodiment, the upper end of the directional tube is connected with tubing string, by described in put-on and delegated
Tubing string so that the orientation bolt switches tracks movement in the direct orbit, and the orientation lever drives the steering gear steering.
In one preferred embodiment, round ring boss is provided on the inside of the directional tube upper end, for sealing
Gap between the directional tube and the orientation lever.
In one preferred embodiment, the card slot pipe nipple upper inner is formed with aperture and tapers into from top to bottom
Inverted cone surface,
Cylindrical card slot is formed in the middle part of the card slot pipe nipple, the internal diameter of the card slot is more than the inverted cone surface lower end
Diameter.
In one preferred embodiment, the lower end of the claw pipe nipple is circumferentially equably provided with multiple activities
Claw；The inside of the claw pipe nipple is formed with the claw cavity for accommodating the movable jaw；The movable jaw can block
Behind the card slot inside for entering the card slot pipe nipple, docking mechanism is formed with the card slot pipe nipple.
In one preferred embodiment, it is provided with claw spring between the two neighboring movable jaw.
In one preferred embodiment, it is provided with bearing between the lower end of the steering gear and tubing anchor, described turn
It is realized by the bearing to device and is rotated relative to the tubing anchor.
In one preferred embodiment, the card slot pipe nipple outside wall surface and the wall surface of the cone-shaped cavity of the steering gear
Between use washer sealing.
In one preferred embodiment, the steering gear includes two steering gear pieces being connected to each other, the steering gear
Piece is connected by dismountable mode.
A kind of sidetracking radial well windowing method based on above-mentioned sidetracking radial well window opening tool, including：
Lower tubing anchor is to precalculated position；
Using tubing string by sidetracking radial well window opening tool assembly down toward side-drilling windowing position；
Abradant jet is pumped into tubing string, abradant jet is successively penetrated by oil pipe, orienting device, card slot pipe nipple, abrasive material
Pipe nipple is flowed, finally ejects, opens a window from nozzle；
After completing primary windowing, put-on and delegated tubing string by the cooperation between orienting device internal mechanism, makes oil pipe
Vertical move up and down be converted into rotary motion of the orientation lever along pit shaft axis, and then drive lower part sidetracking radial well window opening tool
Assembly is turned to, until nozzle direction is located at another predetermined wellbore direction in same layer position；
The step of repeating to open a window, after the completion of windowing, continues the windowing task of next wellbore, until same layer position owns
Intended radial wellbore windowing task is completed；
Using coiled tubing into well tripping in claw pipe nipple, when claw pipe nipple and card slot pipe nipple are connected to each other, above carry continuous
Oil pipe acts abradant jet pipe nipple, nozzle, claw pipe nipple and card slot pipe nipple.
The features and advantages of the invention are：Novel sidetracking radial well window opening tool provided herein and method utilize mill
Material jet stream breaks casing, screen casing etc. and opens a window, overcome it is existing when being opened a window in the art using junk bit, due to bit freezing,
The reasons such as tooth wear can cause operating efficiency low, and the shortcomings that operation fails is resulted even in when serious, improves windowing efficiency.
In addition, during using the tool operation, it is primary it is lower bore after, the windowing task of all wellbores in same layer position can be completed, reduce and remove
Number is bored, the duty cycle of entire radial well technique is reduced, improves operating efficiency, be both to have saved operating cost.In addition,
After windowing, tripping in claw pipe nipple can be utilized, docking mechanism is cooperatively formed with card slot pipe nipple, above carries coiled tubing, i.e.,
Abradant jet pipe nipple, nozzle, claw pipe nipple and card slot pipe nipple can be achieved out, fishing operation is simple, reliable on the whole.
With reference to following explanation and attached drawing, the particular implementation of the application is disclosed in detail, specifies the original of the application
Reason can be in a manner of adopted.It should be understood that presently filed embodiment is not so limited in range.In appended power
In the range of the spirit and terms of profit requirement, presently filed embodiment includes many changes, modifications and is equal.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
Used in a other embodiment, with the feature in other embodiment it is combined or substitute other embodiment in feature.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when being used herein, but simultaneously
It is not excluded for the presence or additional of one or more other features, one integral piece, step or component.
Description of the drawings
Figure 1A is cross-sectional view of the structure when being bored under a kind of sidetracking radial well window opening tool in the application embodiment；
Figure 1B is cross-sectional view of the structure when a kind of sidetracking radial well window opening tool pulls out of hole in the application embodiment；
Fig. 2A is claw pipe nipple front view；
Fig. 2 B are the A-A sectional views of claw pipe nipple；
Fig. 3 A are card slot pipe nipple front views；
Fig. 3 B are the B-B sectional views of card slot pipe nipple；
Fig. 4 is the docking mechanism that card slot pipe nipple educates the formation of claw pipe nipple；
Fig. 5 A are steering gear A piece front views；
Fig. 5 B are steering gear B piece front views；
Fig. 6 is directional tube sectional view；
Fig. 7 is orientation lever front view.
Reference sign：
1- casings；2- tubing strings；3- coiled tubings；4- orienting devices；41- directional tubes；411- round ring boss；42- determines
To bolt；43- orientation levers；431- direct orbits；5- claw pipe nipples；51- movable jaws；52- claw cavitys；53- claw springs；
6- card slot pipe nipples；61- inverted cone surfaces；62- card slots；7- abradant jet pipe nipples；8- steering gears；81- steering gear A pieces；82- steering gears B
Piece；83- turns to slideway；84- cone-shaped cavities；9- nozzles；10- bearings；11- tubing anchors；12- washers.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, elaborate to technical scheme of the present invention, it should be understood that these
Embodiment is only illustrative of the invention and is not intended to limit the scope of the invention, after the present invention has been read, this field skill
Art personnel each fall in the application range as defined in the appended claims the modification of the various equivalent forms of the present invention.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.
It should be noted that when element is referred to as " being set to " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " on ",
" under ", "left", "right" and similar statement for illustrative purposes only, it is unique embodiment to be not offered as.
The liquid-solid two-phase medium agent jet that abrasive water-jet is abrasive material mutually to be mixed with the water phase of High Voltage, high flow rate is
A kind of novel jet flow developed rapidly the eighties.Abrasive water-jet has in industry cleaning link, derusting and cutting etc. at present
It and is widely applied.Due to abradant jet under high pressure, it is stronger to the cutting power of metal, therefore can be in window sidetracking radial water
It is opened a window in horizontal well technology using abradant jet, this can be avoided occurring tooth chips, card when cutting screen casing using mechanical drill
Phenomena such as brill, can improve operating efficiency.The present invention mainly proposes a kind of sidetracking radial well windowing work to open a window using abradant jet
Tool.
The present invention provides a kind of sidetracking radial well window opening tool and method, the defects of can overcoming in the prior art, logical
While crossing abradant jet and smoothly complete windowing, primary lower bore can complete the windowings of all predetermined holes in same layer position and make simultaneously
Industry reduces the number that makes a trip, and improves sidetracking radial well operating efficiency.
A to Fig. 7 is please referred to Fig.1, a kind of sidetracking radial well window opening tool in the application embodiment is provided, can be wrapped
It includes：Steering gear 8, abradant jet pipe nipple 7, nozzle 9, card slot pipe nipple 6, claw pipe nipple 5 and orienting device 4, the steering gear 8
Inside is formed with the cone-shaped cavity 84 for setting the card slot pipe nipple 6 and the steering for setting the abradant jet pipe nipple 7
Slideway 83, the lower end of the steering gear 8 can be coordinated by way of rotation connection with tubing anchor 11；The abradant jet pipe nipple 7
Be arranged on it is described steering slideway 83 in, the abradant jet pipe nipple 7 have opposite arrival end and the port of export, the arrival end with
6 phase of card slot pipe nipple is fixed, and the port of export is connected with the nozzle 9；The outside of the card slot pipe nipple 6 and the steering gear
The sealing cooperation of 8 phases is set on the top of the steering gear 8, and the inside of the card slot pipe nipple 6 can match with the claw pipe nipple 5
It closes, forms docking mechanism；The upper end of the claw pipe nipple 5 is connected with coiled tubing 3；The orienting device 4 include with it is described
The orientation lever 43 that steering gear 8 connects and the directional tube 41 that is set in outside the orientation lever 43 are set on the outer wall of the orientation lever 43
Direct orbit 431 is equipped with, threaded hole is provided on the directional tube 41, orientation bolt 42 is provided in the threaded hole, it is described
Orientation bolt 42 is caught in the direct orbit 431, and can carry out the movement that switches tracks.
In the present embodiment, the upper end of the directional tube 41 is connected with tubing string 2, passes through oil pipe described in put-on and delegated
Column 2 so that the orientation bolt 42 switches tracks movement in the direct orbit 431, and the orientation lever 43 drives the steering gear 8
It turns to.
A kind of novel sidetracking radially horizontal well window opening tool that the application provides mainly includes：Steering gear 8, abradant jet
Pipe nipple 7, nozzle 9, card slot pipe nipple 6, claw pipe nipple 5 and orienting device 4.With reference to specific attached drawing, it is discussed in detail lower
Each component part in application.
Fig. 5 A, Fig. 5 B are please referred to, steering gear 8 mainly by the runner direction of working string by switching to level vertically.Turn
The cone-shaped cavity 84 for setting card slot pipe nipple 6 is formed with to the inside of device 8 and for the steering of abradant jet pipe nipple 7 to be set to slide
Road 83.Wherein, which is the guide rail with specific shape, is used to that abrasive material be set to penetrate in the guider slideway 83
Flow pipe nipple 7.The upper end of steering gear 8 is provided with the back taper structure that cooperation can be sealed with card slot pipe nipple 6.The lower end energy of the steering gear 8
Coordinated by way of rotation connection with tubing anchor 11.
In one embodiment, which includes two steering gears being connected to each other 8, and the steering gear 8 passes through
Dismountable mode is connected.For example, steering gear 8 can include：The steering gear A pieces 81 of docking and steering gear B pieces 82 so will
Steering gear 8 divides for two-piece type, easy to process and installation.It wherein, can be by spiral shell between steering gear A pieces 81 and steering gear B pieces 82
Tether and connect, certainly, the connection mode of the two is not limited to be bolted, can also be other connection modes, such as it is hinged or
It is hinged and is threadedly coupled matched mode etc., specifically, the application does not make specific limit herein.
In one embodiment, bearing 10, the steering are provided between the lower end of the steering gear 8 and tubing anchor 11
Device 8 is realized by the bearing 10 and is rotated relative to the tubing anchor 11.By between the lower end of the steering gear 8 and tubing anchor 11
The rotation of the steering gear 8 can be more reliably achieved by being provided with the mode of bearing 10.
As shown in Figure 1A, Figure 1B, abradant jet pipe nipple 7, which is located at, to be turned in slideway 83.The abradant jet pipe nipple 7 generally one
Bending metal tube, metal tube pipeline is as abradant jet runner, and 7 one end of abradant jet pipe nipple dress nozzle 9, abradant jet leads to
It crosses the abradant jet pipe nipple 7 and acts on casing 1 with nozzle 9 and open a window.
Specifically, the metal tube one end is in bending, bending degree is consistent with turning to 83 bending degree of slideway, bending section
The port of export of the i.e. abradant jet pipe nipple 7 in end be provided with nozzle 9.The nozzle 9 is tapered, and the nozzle 9 of the taper can be right
The abradant jet that abradant jet pipe nipple 7 flows out is further speeded up.Specifically, the end of the bending section of abradant jet pipe nipple 7
It can be by being threadedly coupled between conical nozzle 9.Between the other end (arrival end) and card slot pipe nipple 6 of abradant jet pipe nipple 7
Using threaded connection.
Fig. 3 A, Fig. 3 B are please referred to, card slot pipe nipple 6 is located in 8 cone-shaped cavity 84 of steering gear.Specifically, the card slot
The outside of pipe nipple 6 and 8 phase of steering gear sealing coordinate, and set on the top of the steering gear 8, the card slot pipe nipple 6 it is interior
Side can be matched with the claw pipe nipple 5, form docking mechanism.Wherein, the outside wall surface of the card slot pipe nipple 6 and steering gear 8
It is sealed between 84 wall surface of cone-shaped cavity using washer 12, to ensure the leakproofness of the two cooperation position.
Specifically, card slot pipe nipple 6 can be connected through a screw thread with abradant jet pipe nipple 7, outer shape can be with steering gear 8
Top is set.6 upper inner of card slot pipe nipple is formed with aperture gradually smaller inverted cone surface 61 from top to bottom, and middle part is formed with cylinder
The card slot 62 of shape, 62 diameter of card slot are more than 61 lower end circular diameter of inverted cone surface.The lower inside of the card slot pipe nipple 6 be provided with for and
The 7 matched threaded hole of abradant jet pipe nipple.
6 upper inner of card slot pipe nipple is inverted cone surface 61 convenient for fishing tool tripping in, and existing in 61 lower part of inverted cone surface can be with
The inside cylindrical cavity of fishing tool docking, internal diameter is bigger than inverted cone shape minimum diameter, is installed in 8 conical bores 84 of steering gear,
Its outside wall surface and 8 conical bores of steering gear are sealed between 84 wall surface face using washer 12.
Fig. 2A, Fig. 2 B, Fig. 4 are please referred to, claw pipe nipple 5 is is used to implement salvaging function, the upper end and coiled tubing 3
By being threadedly coupled, lower end is circumferentially evenly distributed multiple movable jaws 51.The number of the movable jaw 51 can be 4,
Can certainly be more than or less than 4, specific the application does not make specific limit herein.Have one inside claw pipe nipple 5
Cylindrical claw cavity 52, movable jaw 51 can be radially taken in claw cavity 52, also outside extended claw cavity 52.Card
The movable jaw 51 of pawl pipe nipple 5 can be caught in inside the card slot 62 of card slot pipe nipple 6, docking mechanism is formed, to connect coiled tubing 3
With lower tool.
Wherein, claw spring 53 is provided between two neighboring movable jaw 51, positioned at two active cards of same radial direction
Pawl 51 is connected by claw spring 53.The claw spring 53 can set one or more layers along the axial direction of the claw pipe nipple 5,
Specifically, the application does not make specific limit herein.
Please refer to figure Figure 1A, Figure 1B, Fig. 6, Fig. 7, orienting device 4 is located at 8 upper end of steering gear, be divided into directional tube 41 with
43 two parts of orientation lever, by being threadedly coupled between orientation lever 43 and steering gear A pieces 81, directional tube 41 is located at 43 outside of orientation lever,
Several threaded holes are uniformly distributed circumferentially at 414 wall surface certain level position of directional tube, orientation bolt 42 is packed into threaded hole, and
It is caught in the direct orbit 431 of 43 outside wall surface of orientation lever.Further, there is a round ring boss 411 on the inside of 41 upper end of directional tube,
To seal gap between directional tube 41 and orientation lever 43.
In the present embodiment, it can realize that window opening tool turns to by lifting from the top and puting down tubing string 2, realize the set of one layer of position
1 windowing task of pipe.When raising and decentralizing tubing string 2, realize that window opening tool steering principle is as follows：
The directional tube 41 and tubing string 2 to link together cannot rotate, and the steering gear 8 that orientation lever 43 is connect with its lower end
It is freely rotatable, orientation bolt 42 is stuck in the direct orbit 431 of orientation lever 43, and tubing anchor 11 is used to ensure orientation lever 43 and turn
It cannot be moved up and down to device 8.
When above carrying tubing string 2 and driving 41 uplink of directional tube, the upper lifting force of orientation bolt 42, which acts on orientation lever 43, to be determined
To the ramp of track 431, lateral thrust is generated, orientation lever 43 is pushed to rotate.As orientation bolt 42 goes upward to direct orbit
During 431 top dead-centre, tubing string 2 is carried in stopping, switching to transfer tubing string 2.When orientation bolt 42 touches lower inclined plane, downwards
Thrust lateral thrust is generated on lower inclined plane, the lateral thrust direction generated when the lateral thrust is with above carrying tubing string 2 is consistent,
Orientation lever 43 is continued to press on to rotate.When coming downwards to 431 bottom dead centre of direct orbit with orientation bolt 42, stop decentralization tubing string, until
This completes steering gear 8 and once turns to.
In the application embodiment one kind is also provided for the sidetracking radial well window opening tool provided in the above embodiment
Sidetracking radial well windowing method, the windowing method may include steps of：
(1) tubing anchor 11 is to precalculated position under；
(2) using tubing string 2 by sidetracking radial well window opening tool assembly down toward side-drilling windowing position；
(3) be pumped into abradant jet into tubing string 2, abradant jet successively by oil pipe, orienting device 4, card slot pipe nipple 6,
Abradant jet pipe nipple 7 is finally ejected from nozzle 9, is opened a window；
(4) after completing primary windowing, put-on and delegated tubing string 2 by the cooperation between 4 internal mechanism of orienting device, makes
Vertical move up and down of tubing string 2 is converted into rotary motion of the orientation lever 43 along pit shaft axis, and then drives lower part sidetracking radially
Well window opening tool assembly is turned to, until 9 direction of nozzle is located at another predetermined wellbore direction in same layer position；
(5) (3) step operating type is repeated, after the completion of windowing, continues the windowing task of next wellbore, until same
All intended radial wellbore windowing tasks in layer position are completed；
(6) using coiled tubing 3 into well tripping in claw pipe nipple 5, when claw pipe nipple 5 and card slot pipe nipple 6 are connected to each other, on
Coiled tubing 3 is carried, acts abradant jet pipe nipple 7, nozzle 9, claw pipe nipple 5 and card slot pipe nipple 6.
In the present embodiment, Figure 1A is please referred to, sidetracking radial well window opening tool assembly refers to tripping in card not yet
The sidetracking radial well window opening tool of pawl pipe nipple 5.After windowing, 3 tripping in claw pipe nipple 5 of coiled tubing, tripping in can be utilized
Claw pipe nipple 5 educate after the card slot pipe nipple 6 docks, above carry coiled tubing 3, you can realized out abradant jet pipe nipple 7, nozzle
9th, claw pipe nipple 5 and card slot pipe nipple 6.Fishing operation is simple, reliable on the whole.
Novel sidetracking radial well window opening tool proposed by the present invention and method, using abradant jet break casing 1, screen casing etc. into
Row windowing, overcomes existing when being opened a window in the art using junk bit, can cause to make due to bit freezing, tooth wear etc.
Industry efficiency is low, and the shortcomings that operation fails is resulted even in when serious, improves windowing efficiency.In addition, during using the tool operation,
After primary lower brill, the windowing task of all wellbores in same layer position can be completed, reduces the number that makes a trip, reduces entire radial well
The duty cycle of technique, operating efficiency is improved, be both to have saved operating cost.In addition, after windowing, can utilize down
Enter claw pipe nipple 5, cooperatively form docking mechanism with card slot pipe nipple 6, above carry coiled tubing 3, you can realized out that abradant jet is short
Section 7, nozzle 9, claw pipe nipple 5 and card slot pipe nipple 6, fishing operation is simple, reliable on the whole.
Under a specific application scenarios, before the tool operation, it is total to complete window opening tool on the ground first
Into assembling, including orienting device 4, card slot pipe nipple 6, abradant jet pipe nipple 7, steering gear 8, nozzle 9.Erection sequence is as follows：It is first
First nozzle 9 is installed and 7 bending section end of abradant jet pipe nipple, the installation of 7 other end of abradant jet pipe nipple and 6 bottom of card slot pipe nipple
Portion；Then the connector of abradant jet pipe nipple 7 and card slot pipe nipple 6 is packed into steering gear A pieces 81, wherein abradant jet pipe nipple 7
Positioned at turning in slideway 83, card slot pipe nipple 6 is located in 8 cone-shaped cavity 84 of steering gear；And then, steering gear B pieces are connected with
82 with steering gear A pieces 81；Finally, by orientation lever 43 loaded on 81 upper end of steering gear A pieces, 41 sets of directional tube on the outside of orientation lever 43,
And orientation bolt 42 is packed into 41 wall surface threaded hole of directional tube.
After window opening tool assembly is completed, using tubing string 2 by it in well at preassembled tubing anchor 11.
In order to be rotated in orientation convenient for steering gear 8, bearing 10 is equipped between tubing anchor 11 and steering gear 8.And then, to tubing string
It is pumped into abradant jet in 2, abradant jet is successively by tubing string 2, orienting device 4, card slot pipe nipple 6, abradant jet pipe nipple 7, most
It ejects and opens a window from conical nozzle 9 eventually.After completing primary windowing, tubing string 2 is lifted from the top and puted down, inside orienting device 4
Cooperation between mechanism causes vertical move up and down of tubing string 2 to be converted into rotary motion of the orientation lever 43 along pit shaft axis, into
And lower part window opening tool assembly is driven to be turned to, until 9 direction of conical nozzle is located at another predetermined wellbore direction in same layer position.
After the completion of positioning operation, into well, pump abradant jet opens a window.
After completing all intended radial wellbore windowing tasks in same layer position with above-mentioned operating type, coiled tubing 3 is utilized
The tripping in claw pipe nipple 5 into well.After claw pipe nipple 5 is contacted with 6 inverted cone surface 61 of card slot pipe nipple, claw pipe nipple 5 can slide to card slot
The card slot 62 of pipe nipple 6, under the action of 6 inverted cone surface of card slot pipe nipple, 61 extruding force, movable jaw 51 is contracted to claw pipe nipple 5 at this time
In claw cavity 52.When claw pipe nipple 5 is completely into card slot 62, movable jaw 51 can stretch out claw cavity 52, and be stuck in
In card slot 62, at this point, the part gravity of claw pipe nipple 5 and coiled tubing 3 is on card slot pipe nipple 6, therefore ground tubing string is drawn
Power load show value reduces.By the cooperation of claw pipe nipple 5 and card slot pipe nipple 6, coiled tubing 3 and lower part abradant jet pipe nipple 7,
Conical nozzle 9 connects.And then, coiled tubing 3 is above carried, acts abradant jet pipe nipple 7, nozzle 9, claw pipe nipple 5 and card slot
Pipe nipple 6.So far, windowing task is completed.
Herein cited any digital value all include between lower limiting value to upper limit value with the lower value of an incremented and
The all values of upper value, there are the intervals of at least two units between any lower value and any much higher value.For example, such as
Fruit elaborates that the quantity of component or the value of process variable (such as temperature, pressure, time etc.) are from 1 to 90, preferably from 20
To 80, more preferably from 30 to 70, then purpose is arrived in order to illustrate also clearly listing such as 15 to 85,22 in the specification
68th, 43 to 51,30 to 32 is equivalent.For being less than 1 value, it is 0.0001,0.001,0.01,0.1 suitably to think a unit.
These are only intended to the example clearly expressed, it is believed that the numerical value enumerated between minimum and peak is possible to
Combination is all expressly set forth in the specification in a similar manner.
Unless otherwise indicated, all ranges all include all numbers between endpoint and endpoint.It is used together with range
" about " or " approximation " be suitable for two endpoints of the range.Thus, " about 20 to 30 " are intended to covering " about 20 to about
30 ", including at least the endpoint indicated.
All articles and reference disclosed herein, including patent application and publication, for various purposes by helping
Draw and be hereby incorporated by.Describe combination term " substantially by ... forms " should including identified element, ingredient, component or step with
And other elements, ingredient, component or step essentially without the basic novel feature for influencing the combination.Use term "comprising"
Or " comprising " describes the combination of element here, ingredient, component or step it is also contemplated that substantially by these elements, ingredient, portion
The embodiment that part or step are formed.Here by using term " can with ", it is intended to illustrate described that " can with " includes
What attribute is all optional.
Multiple element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Optionally
Ground, single integrated component, ingredient, component or step can be divided into multiple element, ingredient, component or the step of separation.It is used for
The open "a" or "an" for describing element, ingredient, component or step is not said to exclude other elements, ingredient, component
Or step.
Above-mentioned each embodiment in this specification is described by the way of progressive, identical between each embodiment
Similar portion is cross-referenced, and what each embodiment stressed is and other embodiment difference.
The foregoing is merely several embodiments of the invention, although disclosed herein embodiment as above, institute
Content is stated only to facilitate the embodiment for understanding the present invention and using, is not intended to limit the present invention.Any institute of the present invention
Belong to those skilled in the art, do not depart from disclosed herein spirit and scope under the premise of, can be in embodiment
Formal and details on make any modification and variation, but the scope of patent protection of the present invention, still must be with appended claims
Subject to the range that book is defined.
Claims (10)
1. a kind of sidetracking radial well window opening tool, which is characterized in that including：Steering gear, abradant jet pipe nipple, nozzle, card slot are short
Section, claw pipe nipple and orienting device,
Cone-shaped cavity for setting the card slot pipe nipple is formed on the inside of the steering gear and for the abrasive material to be set to penetrate
The steering slideway of pipe nipple is flowed, the lower end of the steering gear can be coordinated by way of rotation connection with tubing anchor；
The abradant jet pipe nipple is arranged in the steering slideway, and the abradant jet pipe nipple has opposite arrival end with going out
Mouth end, the arrival end are mutually fixed with the card slot pipe nipple, and the port of export is connected with the nozzle；
The outside of the card slot pipe nipple mutually seals cooperation with the steering gear, sets in the top of the steering gear, the card slot
The inside of pipe nipple can be matched with the claw pipe nipple, form docking mechanism；
The upper end of the claw pipe nipple is connected with coiled tubing；
The orienting device includes the orientation lever being connect with the steering gear and the directional tube being set in outside the orientation lever, described
Direct orbit is provided on the outer wall of orientation lever, threaded hole is provided on the directional tube, orientation is provided in the threaded hole
Bolt, the orientation bolt are caught in the direct orbit, and can carry out the movement that switches tracks.
2. sidetracking radial well window opening tool as described in claim 1, which is characterized in that the upper end of the directional tube is connected with oil
Tubing string passes through tubing string described in put-on and delegated so that the orientation bolt switches tracks movement in the direct orbit, described fixed
The steering gear is driven to turn to bar.
3. sidetracking radial well window opening tool as claimed in claim 2, which is characterized in that the inside setting of the directional tube upper end
There is round ring boss, for sealing the gap between the directional tube and the orientation lever.
4. sidetracking radial well window opening tool as described in claim 1, which is characterized in that the card slot pipe nipple upper inner is formed
There is aperture gradually smaller inverted cone surface from top to bottom,
Cylindrical card slot is formed in the middle part of the card slot pipe nipple, the internal diameter of the card slot is more than the straight of the inverted cone surface lower end
Diameter.
5. sidetracking radial well window opening tool as claimed in claim 4, which is characterized in that the lower end of the claw pipe nipple is along week
To being equably provided with multiple movable jaws；The inside of the claw pipe nipple is formed with the claw for accommodating the movable jaw
Cavity；After the movable jaw can be caught in the card slot inside of the card slot pipe nipple, docking mechanism is formed with the card slot pipe nipple.
6. sidetracking radial well window opening tool as claimed in claim 5, which is characterized in that set between two neighboring movable jaw
There is claw spring.
7. sidetracking radial well window opening tool as described in claim 1, which is characterized in that the lower end of the steering gear and tubing anchor
Between be provided with bearing, the steering gear is realized by the bearing and is rotated relative to the tubing anchor.
8. sidetracking radial well window opening tool as described in claim 1, which is characterized in that the card slot pipe nipple outside wall surface with it is described
Washer sealing is used between the wall surface of the cone-shaped cavity of steering gear.
9. sidetracking radial well window opening tool as described in claim 1, which is characterized in that the steering gear is connected to each other including two
Steering gear piece, the steering gear piece is connected by dismountable mode.
10. the sidetracking radial well windowing method based on sidetracking radial well window opening tool described in claim 1, which is characterized in that
Including：
Lower tubing anchor is to precalculated position；
Using tubing string by sidetracking radial well window opening tool assembly down toward side-drilling windowing position；
Abradant jet is pumped into tubing string, abradant jet is successively short by oil pipe, orienting device, card slot pipe nipple, abradant jet
Section, finally ejects from nozzle, opens a window；
After completing primary windowing, put-on and delegated tubing string by the cooperation between orienting device internal mechanism, makes the perpendicular of oil pipe
Straight move up and down is converted into rotary motion of the orientation lever along pit shaft axis, and then drives lower part sidetracking radial well window opening tool assembly
It is turned to, until nozzle direction is located at another predetermined wellbore direction in same layer position；
The step of repeating to open a window, after the completion of windowing, continues the windowing task of next wellbore, until same layer position is all predetermined
Radial direction wellbore windowing task is completed；
Using coiled tubing into well tripping in claw pipe nipple, when claw pipe nipple and card slot pipe nipple are connected to each other, above carry coiled tubing,
Act abradant jet pipe nipple, nozzle, claw pipe nipple and card slot pipe nipple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711344612.2A CN108131109B (en) | 2017-12-15 | 2017-12-15 | Sidetracking radial well windowing tool and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711344612.2A CN108131109B (en) | 2017-12-15 | 2017-12-15 | Sidetracking radial well windowing tool and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108131109A true CN108131109A (en) | 2018-06-08 |
| CN108131109B CN108131109B (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711344612.2A Active CN108131109B (en) | 2017-12-15 | 2017-12-15 | Sidetracking radial well windowing tool and method |
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| CN108952580A (en) * | 2018-07-27 | 2018-12-07 | 中国石油大学(华东) | Drilling pipe recoverable abradant jet fishbone well bores completion system |
| CN109594922A (en) * | 2018-10-23 | 2019-04-09 | 中国石油天然气集团有限公司 | The method that water jet bores radial well operations |
| CN110005358A (en) * | 2019-04-04 | 2019-07-12 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of continuous pipe side-drilling windowing method |
| CN110656905A (en) * | 2019-10-17 | 2020-01-07 | 中国石油大学(北京) | Abrasive jet windowing device and method |
| CN111485826A (en) * | 2020-04-07 | 2020-08-04 | 中煤科工集团西安研究院有限公司 | Coal mine underground directional drilling branch hole sidetracking device and method |
| CN114059986A (en) * | 2021-08-20 | 2022-02-18 | 大庆辰平钻井技术服务有限公司 | Open hole hydraulic sand blasting deep penetration system and penetration method for ultra-short radius horizontal well |
| CN114183076A (en) * | 2020-09-15 | 2022-03-15 | 中国石油天然气股份有限公司 | Hydraulic jet drilling pipe column and hydraulic jet drilling method |
| CN117052333A (en) * | 2023-08-01 | 2023-11-14 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Radial horizontal well sealing device, drilling equipment and drilling method |
| CN114059986B (en) * | 2021-08-20 | 2024-04-30 | 大庆辰平钻井技术服务有限公司 | Open hole hydraulic sand blasting deep penetration system and penetration method for ultra-short radius horizontal well |
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| CN114059986A (en) * | 2021-08-20 | 2022-02-18 | 大庆辰平钻井技术服务有限公司 | Open hole hydraulic sand blasting deep penetration system and penetration method for ultra-short radius horizontal well |
| CN114059986B (en) * | 2021-08-20 | 2024-04-30 | 大庆辰平钻井技术服务有限公司 | Open hole hydraulic sand blasting deep penetration system and penetration method for ultra-short radius horizontal well |
| CN117052333A (en) * | 2023-08-01 | 2023-11-14 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Radial horizontal well sealing device, drilling equipment and drilling method |
| CN117052333B (en) * | 2023-08-01 | 2024-04-05 | 天津斯图智能钻探有限公司 | Radial horizontal well sealing device, drilling equipment and drilling method |
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