CN106321004A - Horizontal well coiled tube drilling plug tubular column - Google Patents
Horizontal well coiled tube drilling plug tubular column Download PDFInfo
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- CN106321004A CN106321004A CN201510386536.6A CN201510386536A CN106321004A CN 106321004 A CN106321004 A CN 106321004A CN 201510386536 A CN201510386536 A CN 201510386536A CN 106321004 A CN106321004 A CN 106321004A
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- horizontal well
- tubing string
- plug
- anchor
- centre bore
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Abstract
The invention provides a horizontal well coiled tube drilling plug tubular column which comprises a milling shoe, a motor, a motor head, an anchoring and pressurizing device and a jar knocker, wherein the milling shoe, the motor, the motor head, the anchoring and pressurizing device and the jar knocker are sequentially connected. The horizontal well coiled tube drilling plug tubular column comprises the anchoring and pressurizing device which can anchor a drilling plug tubular column body into a horizontal well casing tube. After the drilling plug tubular column body is anchored into the horizontal well casing tube through the anchoring and pressurizing device, the milling shoe is pressurized to guarantee the drilling pressure of the milling shoe. The anchored drilling plug tubular column can balance the axial force generated when the milling shoe drills and removes a bridge plug, and the drilling process of the milling shoe is stable. Accordingly, the efficiency of the drilling and removing of the bridge plug is improved, and the time for drilling and removing the bridge plug is shortened.
Description
Technical field
The present invention relates to unconventionaloil pool exploration and development technical field, particularly relate to a kind of horizontal well coiled tubing
Bore plug tubing string.
Background technology
The exploitation of unconventionaloil pool, improves well yield mainly by staged fracturing of horizontal well technology, wherein waterpower
Pumping bridging plug perforating and fracturing integration staged fracturing Technology has become unconventionaloil pool and has hidden, particularly shale oil
The important means of gas reservoir development, after this technique subsection pressure break completes, leaves bridging plug in pit shaft, protect for recovering pit shaft
Card production of hydrocarbons is unimpeded, it is necessary to boring milling and fall bridging plug, existing brill milling bridging plug tubular column structure mode includes oil
Pipe working string and two kinds of work patterns of continuous oil pipe operation tubing string.
Using oil pipe to bore milling bridging plug, its ground installation is workover rig, uses continuous tubing drill milling bridging plug, ground
Face equipment is the equipment such as coild tubing unit and supporting crane.Oil pipe bores plug operation needs lower oil tube to make
Industry, to Active workings require height, workover rig lower oil tube expend the time long, and the installation of well-control equipment, pressure testing,
The operation that dismounting and well head are installed not only requires height but also there is secondary kill-job operation, can bring the secondary of oil-gas reservoir
Pollute, affect fracturing yield increasing effect.
The continuous lower oil tube of cylinder is leaned in continuous tubing drill plug operation, and the used time is short, and well control safety.Bore after filling in permissible
Directly carry out test to produce, there is not the pollution problem that secondary kill-job brings, be conducive to playing the effect of fracturing yield increasing
Really, be conducive to protecting oil-gas reservoir.Continuous tubing drill plug operation is particularly suitable for the scene of " well factory " pattern and executes
Work industry, is that the optimal of institutional operation pattern bores plug mode.
The continuous tubing drill plug tubing string used at present is: tubing string mainly by coiled tubing joint, ball-and-seat, give up,
Bumper jar, motor and junk mill etc. form.Along with the increase of current horizontal well length, horizontal section length is increasingly
Long, the pressure of the drill that coiled tubing is applied on drilling tool also becomes difficulty, causes bridging plug bottom horizontal segment to bore except the time becomes
Increase again, had a strong impact on the raising boring plug efficiency, added the development cost of shale gas reservoir, reduce exploitation
Benefit.
Summary of the invention
The technical problem to be solved is to overcome on the drilling tool boring plug tubing string of the prior art
The pressure of the drill is not enough and causes horizontal segment bridging plug to bore the deficiency except overlong time.
For the problems referred to above, the present invention proposes a kind of horizontal well continuous tubing drill plug tubing string, including: phase successively
Junk mill, motor, motor head, grappling pressue device and the bumper jar connected.
Horizontal well continuous tubing drill plug tubing string according to the present invention, it includes to be anchored on level by boring plug tubing string
Grappling pressue device in casing.After brill plug tubing string is anchored in horizontal well casing pipe by grappling pressue device,
Junk mill is pressurizeed, to ensure the pressure of the drill of junk mill.Brill plug tubing string after grappling can balance junk mill and bore except bridging plug
Time the axial force that produces so that junk mill drilling process is stable, thus improves and bore the efficiency except bridging plug, shortens
Bore the time except bridging plug.
In one embodiment, described grappling pressue device includes the anchor mechanism basis being connected with described bumper jar
Body and can be along the anchor fluke of described anchor mechanism body radial expansion.
In one embodiment, described anchor mechanism body include centre bore and be connected with described centre bore and
The shoulder hole radially extended along described anchor mechanism body, described anchor fluke is arranged on the first shoulder hole that aperture is bigger
In and seal between described anchor fluke and the hole wall of described first shoulder hole and coordinate.
In one embodiment, described anchor fluke includes base and protrudes described base the axle along described centre bore
To the leg extended, the end face of described leg is provided with projection.
In one embodiment, the outer peripheral face of described anchor mechanism main body is fixedly connected with crosses described first rank
The anchor fluke pressing plate in the aperture in ladder hole, is provided with spring between described base and described anchor fluke pressing plate.
In one embodiment, described grappling pressue device includes the pressing mechanism basis being connected with described motor head
Body and the central canal in being set in the centre bore of described pressing mechanism body, described central canal outer peripheral face is provided with
Annular flange flange, the outer peripheral face of described annular flange flange seals with the hole wall of described centre bore and coordinates.
In one embodiment, described centre bore include the less first paragraph in aperture and aperture bigger second
Section, described annular flange flange be positioned at described centre bore second segment and can be along the axle of the second segment of described centre bore
To movement.
In one embodiment, described central canal also includes the circular pipeline section being arranged on described annular flange flange side,
Described circular pipeline section be inserted into described centre bore first paragraph and and described centre bore first paragraph hole wall between
It is formed with gap.
In one embodiment, described central canal also includes the regular prism shape being arranged on described annular flange flange opposite side
Pipeline section, the second segment of described centre bore connects end cap, being provided centrally with and described regular prism shape of described end cap
The through hole of pipeline section form fit.
In one embodiment, described horizontal well continuous tubing drill plug tubing string also includes pressurizeing with described grappling respectively
The agitator that device is connected with bumper jar.
Grappling pressue device according to the present invention, relative to prior art, bores plug tubing string by grappling pressue device
Anchor mechanism be anchored in horizontal well casing pipe, such that it is able to balance the moment of torsion that coiled tubing is applied by motor,
Extend the service life of coiled tubing.Meanwhile, the pressing mechanism in grappling pressue device can ensure that the brill of junk mill
Pressure, it is provided that bore except bridging plug efficiency.When entering to be hampered under brill plug tubing string is in horizontal well, agitator can eliminate brill
Enter, under plug tubing string, the problem being hampered, solve and bore the problem that plug tubing string is not in place under net horizontal section.
Accompanying drawing explanation
Hereinafter based on embodiment reference accompanying drawing, the present invention will be described in more detail.
Fig. 1 is the overall structure schematic diagram boring plug tubing string of the embodiment of the present invention.
Fig. 2 is the overall structure schematic diagram of the grappling pressue device of the embodiment of the present invention.
Fig. 3 is A-A cross-sectional schematic in Fig. 2.
Fig. 4 is partial enlarged drawing at B in Fig. 3.
Fig. 5 is the first anchor fluke structural representation of the embodiment of the present invention.
Fig. 6 is the second anchor fluke structural representation of the embodiment of the present invention.
Fig. 7 is the structural representation of the central canal of the embodiment of the present invention.
In the accompanying drawings, identical parts use identical reference.Accompanying drawing is not drawn according to actual ratio.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As it is shown in figure 1, the horizontal well continuous tubing drill plug tubing string 10 of the embodiment of the present invention, including for boring except bridge
The junk mill 11 of plug, and the motor 12 of junk mill 11 drive connection, the motor head 13 being fixedly attached on motor 12,
The grappling pressue device 14 that be connected fixing with motor head 13, the agitator that be connected fixing with grappling pressue device 14
15 bumper jars 16 that are connected fixing with agitator 15 and the coiled tubing that be connected fixing with bumper jar 16 connect
17.Behind the precalculated position that horizontal well continuous tubing drill plug tubing string 10 is lowered in horizontal well casing pipe, to boring plug
In tubing string 10, input is with the liquid of pressure.Grappling pressue device 14 enters duty and brill is filled in tubing string 10
Grappling, liquid can drive motor 12 to rotate, and then motor 12 drives junk mill 11 to rotate to bore except being positioned at water
Bridging plug in horizontal well sleeve pipe.
Grappling pressue device 14 includes anchor mechanism, righting mechanism and pressing mechanism.Anchor mechanism and jarring
Device 16 is connected, and pressing mechanism is connected with motor head 13, righting mechanism respectively with anchor mechanism and pressuring machine
Structure is connected.Grappling pressue device 14 can be anchored on boring plug tubing string 10 in horizontal well casing pipe, and to mill
Footwear 11 apply certain thrust to increase the pressure of the drill of junk mill 11 such that it is able to improve and bore the efficiency except bridging plug, contracting
Stub boring removes the time.
Behind the precalculated position that horizontal well continuous tubing drill plug tubing string 10 is lowered in horizontal well casing pipe, bore plug tubing string
10 are anchored in horizontal well casing pipe by anchor mechanism, and the circumference boring plug tubing string 10 is moved and moved axially
To restriction effect, the twisting resistance and the junk mill 11 that produce when junk mill 11 can be driven to rotate with balancing motor 12 bore
Except the axial force produced during bridging plug such that it is able to ensure that the position that junk mill 11 bores except boring plug tubing string 10 during bridging plug is steady
Qualitative.
As in figure 2 it is shown, anchor mechanism includes the anchor mechanism body 18 threadeded with agitator 15, arranges
Anchor fluke 19 on anchor mechanism body 18 and the anchor fluke pressing plate 20 that be connected fixing with anchor mechanism body 18.
As shown in Figure 3, Figure 4, anchor mechanism body 18 includes centre bore and is connected and along grappling with this centre bore
The shoulder hole that mechanism body 18 radially extends.Shoulder hole includes towards outside and that aperture is bigger the first shoulder hole
And be connected with centre bore and the second shoulder hole that aperture is less.Anchor fluke 19 be placed on aperture relatively big and towards
In the first outside shoulder hole and can extending radially out or retracting along anchor mechanism body 18.The present embodiment
In, as it is shown on figure 3, the angle α of the axis of the axis of shoulder hole and centre bore is 90 degree.
In embodiments of the invention, as it is shown in figure 5, anchor fluke 19 include base 191 and with base 191 phase
Connect and symmetrically arranged two legs 192.Circumferential slot 193 it is provided with on the outer peripheral face of base 191.Circumference
Groove 193 is provided with sealing ring.When anchor fluke 19 is put in the first shoulder hole, circumferential slot 193 and the first rank
The hole wall crush seal circle in ladder hole is to form sealing.Be formed along base 191 between two legs 192 is axial
The grooving 194 of " one " font that direction extends.Anchor mechanism also includes the aperture striding across the first shoulder hole and incites somebody to action
The anchor fluke pressing plate 20 that this aperture is divided into two.The two ends of anchor fluke pressing plate 20 are fixedly attached to anchor by screw respectively
Determine in mechanism body 18.Anchor fluke pressing plate 20 is corresponding with the grooving 194 on anchor fluke 19.
As shown in Figure 4, it is provided with spring 21 between bottom and the anchor fluke pressing plate 20 of grooving 194.Anchor fluke 19
After base 191 stress, two legs 192 of anchor fluke 19 can stretch out from the first shoulder hole and move closer to water
The inwall of horizontal well sleeve pipe, and anchor fluke pressing plate 20 can enter in grooving 194, spring 21 is compressed simultaneously.Stretch
Two legs 192 gone out eventually are pressed on the inwall of horizontal well casing pipe, thus bore plug tubing string 10 by whole
It is anchored in horizontal well casing pipe.Releasing in anchoring process, spring 21 is used for promoting anchor fluke 19 to retract the first rank
With homing in ladder hole.
As it is shown in figure 5, be provided with protruding 195 on the end face of the two of anchor fluke 19 legs 192.With projection
The leg 192 of 195 can produce bigger pressure to the inwall of horizontal well casing pipe, it is possible to ensures to bore plug tubing string 10
The stability of anchoring states and reliability.The leg 192 of anchor fluke 19 can produce the anchor of axial and circumferential respectively
Determine power such that it is able to the twisting resistance produced when balancing motor 12 rotates and junk mill 11 bore except generation during bridging plug
Axial force, extends the service life of continuous tubing drill plug tubing string 10.In the present embodiment, as shown in Figure 5, Figure 6,
The strip projected parts perpendicular or parallel with grooving 194 it is provided with on the end face of two legs 192 of anchor fluke 19
195, the top of protruding 195 is most advanced and sophisticated, and top contacts with the hole wall of horizontal well casing pipe, such that it is able to support
It is pressed onto on horizontal well casing pipe inwall.In other embodiments, protruding 195 it is so structured that orthopyramid shape or hemispherical.
Certain pressure is applied in the centre bore of liquid entrance anchor mechanism body 18 and to the base 191 of anchor fluke 19
And promote anchor fluke 19 to move.After two legs 192 of anchor fluke 19 stretch out the first shoulder hole, anchor fluke pressing plate 20
Entering this grooving 194, two legs 192 of anchor fluke 19 are from two apertures being split formation by anchor fluke pressing plate 20
Stretch out until being pressed on the inwall of horizontal well casing pipe.Anchor fluke pressing plate 20 is used for preventing anchor fluke 19 from the first ladder
Hole is deviate from, also jointly spring 21 is applied extruding force with anchor fluke 19 simultaneously.
Such as figure Fig. 3, shown in 4, righting mechanism includes the pipeline short section 22 threadeded with anchor mechanism body 18
And the centralizer 23 being set on the outer peripheral face of pipeline short section 22.Righting mechanism is used for adjusting brill plug tubing string 10
Under enter during position in horizontal well casing pipe, it is ensured that smoothly complete down process.Bore plug tubing string 10 to pass through
After anchor mechanism grappling, the pressing mechanism of grappling pressue device 14 applies a thrust to increase mill to junk mill 11
The pressure of the drill of footwear 11, it is ensured that the cutting pressure between junk mill 11 and bridging plug is stable, thus improves junk mill 11 and bore
Except the efficiency of bridging plug, shorten and bore the time except bridging plug.
As shown in Figure 3, Figure 4, pressing mechanism includes the pressurization that the pipeline short section 22 with righting mechanism is threadeded
Mechanism body 24 and the central canal 25 being arranged in pressing mechanism body 24.Pressing mechanism body 24 includes
Centre bore.This centre bore includes the bigger second segment of the less first paragraph in aperture and aperture.In as it is shown in fig. 7,
Annular flange flange 251 it is provided with on heart pipe 25.Annular flange flange 251 is positioned at the second segment of this centre bore.Annular flange flange
Circumferential slot 193 it is provided with on the outer peripheral face of 251.Set between the hole wall of the second segment of circumferential slot 193 and centre bore
It is equipped with sealing ring.
As it is shown in fig. 7, central canal 25 also includes the circular pipeline section 252 laying respectively at annular flange flange 251 both sides
And regular prism shape pipeline section 253.Circular pipeline section 252 insert centre bore first paragraph and with the hole wall of first paragraph it
Between be formed with gap.Liquid enters this gap and directly contacts with annular flange flange 251, thus liquid is to annular
The end face of flange 251 applies thrust, and then promotes central canal 25 to move.During regular prism shape pipeline section 253 is positioned at
The second segment of central hole.
As shown in Figure 3, Figure 4, threaded in the aperture of the second segment of centre bore have end cap 26.End cap 26
It is provided centrally with the through hole matched with the outer peripheral face of regular prism shape pipeline section 253.It is provided with appearance on the hole wall of through hole
Receive the circumferential slot 193 of sealing ring.The hole wall crush seal circle of the outer peripheral face of regular prism shape pipeline section 253 and through hole with
Formed and seal.A part for regular prism shape pipeline section 253 stretches out the second segment of centre bore through this through hole.
End cap 26 1 aspect is for coordinating to prevent central canal 25 from pressing mechanism body 24 with annular flange flange 251
Middle abjection；On the other hand, when regular prism shape pipeline section 253 coordinates with the through hole of end cap 26, can be by motor 12
Rotate the moment of torsion produced finally to be passed by pressing mechanism body 24, pipeline short section 22 and anchor mechanism body 18
It is delivered on horizontal well casing pipe, it is to avoid continuous tubing drill plug tubing string 10 is caused damaging by torsional impact, from
And add the service life of continuous tubing drill plug tubing string 10.In embodiments of the invention, regular prism shape pipeline section
253 is positive eight prismatic pipeline sections.
As shown in Figure 3, Figure 4, through screw thread on the end of the regular prism shape pipeline section 253 of the through hole of end cap 26 even
It is connected to pipe joint 27.The other end of pipe joint 27 is threadedly coupled on motor head 13.Boring, plug tubing string 10 is complete
After becoming grappling, the liquid of the first paragraph entering into the centre bore of pressing mechanism body 24 can be to annular flange flange 251
Apply an axial thrust to promote annular flange flange 251 to move axially in the second segment of centre bore.Central canal
25 move axially can drive motor head 13, motor 12 and junk mill 11 to move axially, it is thus possible to
Enough ensure stablizing of the pressure of the drill that junk mill 11 is applied on bridging plug during boring except bridging plug, improve brill except bridge
The efficiency of plug, it is to avoid junk mill 11 the pressure of the drill is not enough and causes boring the situation except time length.It addition, annular flange flange 251
The distance moved axially in the second segment of centre bore is more than or equal to the length of a bridging plug, thus ensures to move
The dynamic plug tubing string 10 that bores the most just can bore except bridging plug.
In embodiments of the invention, bore plug tubing string 10 also include respectively with grappling pressue device 14 and bumper jar
The agitator 15 that 16 are connected.When entering to be hampered under continuous tubing drill plug tubing string 10 is in net horizontal section, vibration
Device 15 can produce vibratory forces, eliminates the resistance hindering continuous tubing drill plug tubing string to enter for 10 times such that it is able to solves
Certainly bore plug tubing string 10 and transfer problem not in place at net horizontal section.
The work process boring plug tubing string 10 of the present invention is as follows:
Step one: be sequentially connected with on the ground junk mill 11, motor 12, motor head 13, grappling pressue device 14,
Agitator 15, bumper jar 16 and coiled tubing joint 17, be threaded connection between each component.
Step 2: brill plug tubing string 10 and lubricator are connected to well head.
Step 3: at first bridging plug that will bore in plug tubing string 10 lower going-into-well.
Step 4: start grappling pressue device 14 and motor 12, bores plug tubing string 10 and is anchored in horizontal well casing pipe,
Motor 12 drives junk mill 11 to bore except first bridging plug.
Step 5: after boring except first bridging plug, uses flushing liquor circulation to be cleaned up by drilling cuttings.
Step 6: stop motor 12, enters to bore at plug 10 to the second bridging plugs of tubing string under continuation.
Step 7: repeat step 4, step 5, step 6, bore bridging plug unless each successively.
Step 8: stop motor 12, trips out brill plug tubing string 10.
Bore plug tubing string enter for 10 times process be hampered time, start agitator 15, eliminate bore plug tubing string enter resistance 10 times,
Thus brill plug tubing string 10 is lowered into position.After boring except whole bridging plugs, brill plug tubing string 10 is tripped out.Tripped out
When journey brill plug tubing string 10 is hampered, starting bumper jar 16, elimination brill is filled in tubing string 10 and is tripped out resistance, thus smoothly will
Bore plug tubing string 10 to trip out.Being hampered seriously when boring plug tubing string 10, bumper jar 16 can not contact when tripping out resistance,
Pitching, carries out hydraulic releasing, trips out top and bores plug tubing string 10.
Although by reference to preferred embodiment, invention has been described, but without departing from the scope of the present invention
In the case of, it can be carried out various improvement and parts therein can be replaced with equivalent.Especially, only
Otherwise there is structural hazard, the every technical characteristic being previously mentioned in each embodiment all can combine in any way
Come.The invention is not limited in specific embodiment disclosed herein, but include falling within the scope of the appended claims
All technical schemes.
Claims (10)
1. a horizontal well continuous tubing drill plug tubing string, including: the most interconnective junk mill, motor, horse
Reach head, grappling pressue device and bumper jar.
Horizontal well continuous tubing drill plug tubing string the most according to claim 1, it is characterised in that described anchor
Determine pressue device and include the anchor mechanism body being connected with described bumper jar and can be along described anchor mechanism
The anchor fluke of body radial expansion.
Horizontal well continuous tubing drill plug tubing string the most according to claim 2, it is characterised in that described anchor
Determine mechanism body include centre bore and be connected with described centre bore and radially prolong along described anchor mechanism body
The shoulder hole stretched, described anchor fluke is arranged in the first shoulder hole that aperture is bigger and described anchor fluke and described first rank
Seal between the hole wall in ladder hole and coordinate.
Horizontal well continuous tubing drill plug tubing string the most according to claim 3, it is characterised in that described anchor
Pawl includes base and protrudes described base the axially extended leg along described centre bore, the end of described leg
Projection it is provided with on face.
Horizontal well continuous tubing drill plug tubing string the most according to claim 4, it is characterised in that described anchor
Determine to be fixedly connected with on the outer peripheral face of mechanism body the anchor fluke pressing plate in the aperture crossing described first shoulder hole, described
It is provided with spring between base and described anchor fluke pressing plate.
Horizontal well continuous tubing drill plug tubing string the most according to claim 1, it is characterised in that described anchor
Determine pressue device include the pressing mechanism body being connected with described motor head and be set in described pressing mechanism
Central canal in the centre bore of body, described central canal outer peripheral face is provided with annular flange flange, described annular flange flange
Outer peripheral face seals with the hole wall of described centre bore and coordinates.
Horizontal well continuous tubing drill plug tubing string the most according to claim 6, it is characterised in that in described
Central hole includes the bigger second segment of the less first paragraph in aperture and aperture, and described annular flange flange is positioned at described center
In the second segment in hole and can moving axially along the second segment of described centre bore.
Horizontal well continuous tubing drill plug tubing string the most according to claim 7, it is characterised in that in described
Heart pipe also includes that the circular pipeline section being arranged on described annular flange flange side, described circular pipeline section are inserted into described center
The first paragraph in hole and and described centre bore first paragraph hole wall between be formed with gap.
Horizontal well continuous tubing drill plug tubing string the most according to claim 8, it is characterised in that in described
Heart pipe also includes the regular prism shape pipeline section being arranged on described annular flange flange opposite side, and the second segment of described centre bore is even
It is connected to end cap, being provided centrally with and the through hole of described regular prism shape pipeline section form fit of described end cap.
Horizontal well continuous tubing drill plug tubing string the most according to claim 1, it is characterised in that described water
Horizontal well continuous tubing drill plug tubing string also includes the vibration being connected respectively with described grappling pressue device and bumper jar
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510386536.6A CN106321004B (en) | 2015-06-30 | 2015-06-30 | A kind of horizontal well continuous tubing drill plug tubing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510386536.6A CN106321004B (en) | 2015-06-30 | 2015-06-30 | A kind of horizontal well continuous tubing drill plug tubing string |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106321004A true CN106321004A (en) | 2017-01-11 |
| CN106321004B CN106321004B (en) | 2019-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510386536.6A Active CN106321004B (en) | 2015-06-30 | 2015-06-30 | A kind of horizontal well continuous tubing drill plug tubing string |
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| CN (1) | CN106321004B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107605410A (en) * | 2017-07-17 | 2018-01-19 | 中国石油集团长城钻探工程有限公司 | A kind of tubular column structure for strengthening the horizontal-extending ability of coiled tubing drilling |
| CN109519136A (en) * | 2017-09-18 | 2019-03-26 | 中国石油化工股份有限公司 | A kind of automatic rotoblast cutting technique tubing string of coiled tubing and method |
| CN112343534A (en) * | 2019-08-07 | 2021-02-09 | 中国石油化工股份有限公司 | Drilling-out tool and drilling-out method |
| CN112412378A (en) * | 2020-12-08 | 2021-02-26 | 中国石油天然气集团有限公司 | Drilling and plugging operation method for oil pipe of compact oil long horizontal well |
| CN114109287A (en) * | 2020-08-28 | 2022-03-01 | 中国石油天然气股份有限公司 | Anchoring device for hydraulic jet drilling and hydraulic jet drilling pipe column |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605410A (en) * | 2017-07-17 | 2018-01-19 | 中国石油集团长城钻探工程有限公司 | A kind of tubular column structure for strengthening the horizontal-extending ability of coiled tubing drilling |
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| CN112343534A (en) * | 2019-08-07 | 2021-02-09 | 中国石油化工股份有限公司 | Drilling-out tool and drilling-out method |
| CN114109287A (en) * | 2020-08-28 | 2022-03-01 | 中国石油天然气股份有限公司 | Anchoring device for hydraulic jet drilling and hydraulic jet drilling pipe column |
| CN112412378A (en) * | 2020-12-08 | 2021-02-26 | 中国石油天然气集团有限公司 | Drilling and plugging operation method for oil pipe of compact oil long horizontal well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106321004B (en) | 2019-01-01 |
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