CN114183076B - Hydraulic jet drilling pipe column and hydraulic jet drilling method - Google Patents
Hydraulic jet drilling pipe column and hydraulic jet drilling method Download PDFInfo
- Publication number
- CN114183076B CN114183076B CN202010964943.1A CN202010964943A CN114183076B CN 114183076 B CN114183076 B CN 114183076B CN 202010964943 A CN202010964943 A CN 202010964943A CN 114183076 B CN114183076 B CN 114183076B
- Authority
- CN
- China
- Prior art keywords
- pipe
- butt joint
- hydraulic jet
- tube
- jet drilling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 119
- 238000000034 method Methods 0.000 title claims abstract description 33
- 210000001503 joint Anatomy 0.000 claims abstract description 89
- 238000006243 chemical reaction Methods 0.000 claims abstract description 64
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000002347 injection Methods 0.000 claims abstract description 28
- 239000007924 injection Substances 0.000 claims abstract description 28
- 230000009471 action Effects 0.000 claims abstract description 19
- 238000010008 shearing Methods 0.000 claims abstract description 10
- 230000008878 coupling Effects 0.000 claims description 29
- 238000010168 coupling process Methods 0.000 claims description 29
- 238000005859 coupling reaction Methods 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 23
- 239000004570 mortar (masonry) Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 15
- 210000002445 nipple Anatomy 0.000 claims description 13
- 239000004576 sand Substances 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 description 11
- 238000003032 molecular docking Methods 0.000 description 9
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 210000000078 claw Anatomy 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
-
- 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
- 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
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a hydraulic jet drilling pipe column and a hydraulic jet drilling method, wherein the hydraulic jet drilling pipe column comprises an outer pipe column and an inner pipe column arranged in the outer pipe column; the outer pipe column comprises an outer pipe body and a guide device, and the inner wall of the outer pipe body is provided with a first step and a second step which are distributed from bottom to top; the inner tube post includes: the device comprises a nozzle, an injection rubber tube, an action conversion mechanism, a first butt joint tube, a second butt joint tube and an inner tube column lower oil inlet tube, wherein the action conversion mechanism comprises a pin spring, a conversion tube body connected to the upper end of the injection rubber tube and a positioning limiting pin shaft arranged on the conversion tube body; the first butt joint pipe is connected to the upper end of the conversion pipe body, the second butt joint pipe can be spliced and communicated with the first butt joint pipe, and the inner pipe column lower oil pipe is connected to the upper end of the second butt joint pipe and fixedly connected with the second butt joint pipe through a shearing pin. According to the hydraulic jet drilling device, the technical problems that in hydraulic jet drilling operation, the drilling pipe column is difficult to put in, the operation links are more, and the operation cost is high are solved.
Description
Technical Field
The invention relates to the field of oil extraction in oil fields, in particular to a hydraulic jet drilling pipe column and a hydraulic jet drilling method.
Background
The hydraulic jet drilling technology is a production increasing technology, firstly, the underground designated layer sleeve is windowed, then the drilling tubular column forms long-distance radial holes on the stratum through the window, and the hydraulic jet drilling technology can directly and effectively dredge the far-end cracks of the reservoir or the near-wellbore zone to realize blocking removal, improve the permeability of the production interval, enable the residual oil between wells to be used, and realize production increase and efficiency. The hydraulic jet drilling technology can be applied to the field of low permeability oilfield development, such as geological exploration, oil well yield increase, steam injection improvement, water injection effect improvement and the like.
The hydraulic jet drilling mainly comprises casing windowing and stratum drilling, can adopt a pure water jet mode to drill underground, and has the problem that the rock breaking effect of various underground reservoir lithology is difficult to meet due to the limited rock breaking capacity of pure water; meanwhile, the windowing mode can adopt a mode of mechanically drilling and milling the sleeve, and the technical problem of low windowing success rate exists. As an improvement of the hydraulic jet drilling technique, an abrasive hydraulic jet drilling technique is proposed, that is, abrasive is added into high-pressure water jet fluid, thereby improving the rock breaking capability of water jet under unit pressure.
The abrasive hydraulic jet drilling technology mainly comprises casing windowing and stratum drilling, wherein the casing windowing and stratum drilling are carried out step by step in general, and a drilling tubular column is put into after the casing windowing is completed. The lower end of the drilled pipe column is provided with a high-pressure rubber pipe with 15-100 m, the high-pressure rubber pipe has weak rigidity, and the drilled pipe column is difficult to be put into an oil well pipe column with the depth of about 2000-3000 m, so that the drilled pipe column is easy to be blocked in the oil well pipe column and can not be put into the oil well pipe column. In addition, the casing windowing and stratum drilling are implemented step by step, and the technical problems of high operation cost, multiple operation links, long construction period, poor stability of a process pipe column and the like exist.
Disclosure of Invention
The invention aims to provide a hydraulic jet drilling pipe column and a hydraulic jet drilling method, which are used for solving the technical problems of high difficulty in setting the drilling pipe column, multiple operation links and high operation cost in hydraulic jet drilling operation.
The above object of the present invention can be achieved by the following technical solutions:
the invention provides a hydraulic jet drilling string comprising: an outer pipe column and an inner pipe column arranged in the outer pipe column;
the outer tubular post includes:
the inner wall of the outer pipe body is provided with a first step and a second step which are distributed from bottom to top;
the guide device is connected to the lower end of the outer pipe body and is provided with a rubber pipe advancing channel;
the inner tubular post includes:
a nozzle;
the spray hose can move in the hose travelling channel, and the nozzle is connected to the lower end of the spray hose;
the action conversion mechanism comprises a pin spring, a conversion tube body connected to the upper end of the injection rubber tube and a positioning limiting pin shaft arranged on the conversion tube body, the conversion tube body is arranged between the first step and the second step, and can pass over the first step and can be blocked by the second step; the pin shaft spring is connected with the positioning limiting pin shaft, so that the positioning limiting pin shaft has a trend of extending outwards to prevent the action conversion mechanism from crossing the first step; the positioning limiting pin shaft can shrink inwards under the condition that the conversion pipe body is filled with sand slurry;
a first butt joint pipe connected to the upper end of the conversion pipe body;
the second butt joint pipe can be spliced with the first butt joint pipe and is communicated with the first butt joint pipe;
the inner pipe column is connected with the upper end of the second butt joint pipe through a shearing pin.
In a preferred embodiment, the conversion pipe body is provided with a pipe body channel and a pin shaft piston cavity, the upper end of the pipe body channel is communicated with the first butt joint pipe, and the lower end of the pipe body channel is communicated with the injection rubber pipe; the pin shaft piston cavity is communicated with the pipe body channel, and the positioning limiting pin shaft is arranged in the pin shaft piston cavity.
In a preferred embodiment, a filter screen is arranged between the pin shaft piston cavity and the pipe body channel.
In a preferred embodiment, the first butt joint pipe is provided with a first plug hole and a second plug hole which are distributed from top to bottom, and the inner diameter of the first plug hole is smaller than that of the second plug hole; the second butt joint pipe is provided with a plug connector, the plug connector can shrink inwards to cross the first plug hole, and the plug connector can be clamped in the second plug hole.
In a preferred embodiment, the first butt joint pipe is provided with a sealing hole positioned above the first plug hole, the second butt joint pipe is provided with a sealing column positioned above the plug connector, and the side wall of the sealing column is provided with a sealing ring which can be matched with the inner wall of the sealing hole.
In a preferred embodiment, a first centralizer is connected between the first docking tube and the transfer tube body.
In a preferred embodiment, the first centralizer comprises a centralizing tube body, a centralizing spring and a plurality of centralizing blocks, and two ends of the centralizing tube body are respectively connected with the first butt joint tube and the conversion tube body; the centralizing block is connected with the centralizing pipe body and can move along the radial direction of the centralizing pipe body, and a plurality of centralizing pipe bodies are distributed around the circumference of the centralizing pipe body; the centralizing spring is connected with the centralizing block and can drive the centralizing block to move outwards to be abutted with the outer pipe column.
In a preferred embodiment, a second centralizer is provided between the second nipple and the inner tubular string run-in tubing.
In a preferred embodiment, the lower end of the lower oil pipe of the inner pipe column is connected with a lower oil pipe lower joint, the upper end of the second butt joint pipe is connected with a disconnecting joint, and the lower oil pipe lower joint can be spliced on the disconnecting joint; the shearing pin is arranged along the radial direction of the disconnecting joint and is connected with the lower joint of the lower oil pipe and the disconnecting joint.
In a preferred embodiment, the outer pipe body comprises a butt joint outer pipe, an uplink limit coupling, a fixture positioning coupling and a rubber pipe outer pipe which are sequentially distributed from top to bottom, and the guide device is connected to the lower end of the rubber pipe outer pipe; the first step is arranged between the tool positioning coupling and the outer tube of the rubber tube, and the second step is arranged between the uplink limiting coupling and the tool positioning coupling.
In a preferred embodiment, the outer tubular post comprises a guide shell connected to the lower end of the outer tubular body, the guide shell is provided with a through groove penetrating radially, and the guide is fixedly arranged in the through groove.
The invention provides a hydraulic jet drilling method, which adopts the hydraulic jet drilling pipe column, and comprises the following steps:
s10, installing the nozzle, the injection rubber tube, the motion conversion mechanism and the first butt joint pipe in the outer pipe column;
step S20, the outer tubular column is lowered into a designated stratum;
step S30, the second butt joint pipe and the inner pipe column are sequentially put into the oil pipe, so that the second butt joint pipe is spliced and communicated with the first butt joint pipe;
step S40, introducing mortar liquid into the inner pipe column, enabling the mortar liquid entering the conversion pipe body to enable the positioning limiting pin to shrink inwards, and simultaneously, spraying the mortar liquid outwards through the nozzle to window the sleeve;
and S50, pushing the inner pipe column to descend, and enabling the nozzle to enter the stratum through the windowed window to drill holes.
In a preferred embodiment, the hydraulic jet drilling method comprises: step S60, lifting the inner pipe column so as to keep the inner pipe column in a stretched state; step S60 is provided between step S30 and step S40.
The invention has the characteristics and advantages that:
by using the hydraulic jet drilling pipe column, the outer pipe column and the inner pipe column can be firstly put into a specified stratum, then casing windowing is carried out, and stratum drilling is carried out.
When the pipe column is put down, a first butt joint pipe, a motion conversion mechanism, a nozzle and an injection rubber pipe in the inner pipe column can be firstly arranged in the outer pipe column and put down into a specified stratum along with the outer pipe column; then, the inner pipe column in the inner pipe column is put into the oil pipe and the second butt joint pipe is put into the outer pipe column, and the inner pipe column is in butt joint with the first butt joint pipe, so that the inner pipe column is assembled; and then introducing sand slurry into the inner tubular column, windowing the casing, and then drilling the stratum.
The length of the inner pipe column lower oil pipe in the inner pipe column is longer, and the inner pipe column lower oil pipe and the outer pipe column can be separately lowered in the hydraulic jet drilling pipe column; in the process of the inner pipe column going into the oil pipe, the inner pipe column can be in butt joint with the first butt joint pipe, the action conversion mechanism, the nozzle and the injection rubber pipe which are already going into the oil pipe, so that the inner pipe column and the outer pipe column can be conveniently and smoothly gone into a specified stratum.
In the hydraulic jet drilling pipe column, the jet rubber pipe, the nozzle and the outer pipe column are arranged in a descending mode, so that the situation that the jet rubber pipe cannot be arranged in a descending mode due to blockage can be reduced.
In the process of butting the second butting pipe and the first butting pipe, the positioning limiting pin shaft in the action conversion mechanism is in an extending state, the action conversion mechanism can be prevented from crossing the first step, the first step provides upward supporting force for the action conversion mechanism and the first butting pipe, and impact force generated by butting acts on the positioning limiting pin shaft and the first step, so that the second butting pipe and the first butting pipe can be ensured to finish butting smoothly.
After the casing is windowed, the inner tubular string is required to be moved downward so that the nozzle enters the formation through the windowed window for drilling. When the sleeve is windowed and the stratum is drilled, mortar liquid is introduced into the inner pipe column, and flows through the action switching mechanism, so that the positioning limiting pin axially contracts inwards.
In the process of opening the window, the positioning limiting pin shaft is in a contracted state under the action of the mortar liquid, but the conversion tube body can be blocked by the second step, so that the movement conversion mechanism can be blocked from moving upwards, the movement conversion mechanism is limited to the second step, the pretightening force required for opening the window is provided for the inner tube column, and the position of the nozzle is kept stable.
After drilling, stopping introducing the mortar liquid, and positioning the limiting pin to axially extend outwards, wherein the conversion tube body can be blocked by the second step, so that the action conversion mechanism, the nozzle and the injection rubber tube are limited below the second step; lifting the inner pipe column, namely shearing a shearing pin between the lower oil pipe of the inner pipe column and the second butt joint pipe, disconnecting the lower oil pipe of the inner pipe column from the second butt joint pipe, and continuously lifting the lower oil pipe of the inner pipe column; and lifting the outer pipe column, and lifting out the hydraulic jet drilling pipe column. By adopting the tripping-out mode, the tripping-out operation of the pipe column is conveniently and smoothly completed.
The hydraulic jet drilling pipe column avoids the operation mode of putting into the drilling pipe column after the casing windowing is finished, but firstly completes the pipe column putting into operation, then carries out casing windowing and stratum drilling, can smoothly complete the pipe column putting into operation and the pipe column lifting operation, and relieves the technical problems of high difficulty in putting into the drilling pipe column, multiple operation links and high operation cost in hydraulic jet drilling operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a first embodiment of a hydraulic jet drilling string provided by the present invention;
FIG. 2 is an enlarged view of a portion at A in FIG. 1;
FIG. 3 is a partial enlarged view at B in FIG. 1;
FIG. 4 is an enlarged view of a portion at C in FIG. 1;
FIG. 5 is a schematic illustration of the motion translating mechanism in the hydraulic jet borehole string of FIG. 1;
FIG. 6 is a schematic structural view of a partial schematic of an inner tubular string in a second embodiment of a hydraulic jet drilling string provided by the present invention;
FIG. 7 is a schematic view of the upper portion of the hydraulic jet drilling string of FIG. 1 in a run-in configuration;
FIG. 8 is a schematic view of the lower portion of the hydraulic jet drilling string of FIG. 1 in a run-in configuration;
FIG. 9 is a schematic illustration of the construction of the upper half of the hydraulic jet drilling string of FIG. 1 in a docked state;
FIG. 10 is a schematic view of the lower portion of the hydraulic jet drilling string of FIG. 1 in a docked state;
FIG. 11 is a schematic illustration of the construction of the upper half of the hydraulic jet drilling string of FIG. 1 in a windowed condition;
FIG. 12 is a schematic view of the lower half of the hydraulic jet drilling string of FIG. 1 in a windowed condition;
FIG. 13 is a schematic view of the construction of the upper half of the hydraulic jet drilling string of FIG. 1 in a drilling configuration;
FIG. 14 is a schematic view of the lower section of the hydraulic jet drilling string of FIG. 1 in a drilled state;
FIG. 15 is a schematic view of the upper portion of the hydraulic jet drilling string of FIG. 1 in a disengaged condition;
FIG. 16 is a schematic view of the lower portion of the hydraulic jet drilling string of FIG. 1 in a disengaged condition;
FIG. 17 is a cross-sectional view of a guide housing in the hydraulic jet drilling string shown in FIG. 1;
FIG. 18 is a sectional view taken along the direction D-D of FIG. 17;
fig. 19 is a schematic view of a hydraulic jet drilling method provided by the invention.
Reference numerals illustrate:
1. an outer tubular column; 3. a bottom-up direction;
10. an outer tube body; 11. a first step; 12. a second step;
20. butting an outer tube; 21. an uplink limit coupling; 22. positioning a coupling by a tool; 23. a rubber tube outer tube;
30. a guide; 302. a snap-in guide; 301. a rubber tube advancing channel;
31. a guide housing; 311. a through groove;
32. a guide upper joint; 33. a rubber tube guide ring; 34. a guide limiting ring; 35. positioning and righting the joint by a guide;
2. an inner tubular column;
40. a nozzle; 41. spraying a rubber tube;
50. a motion conversion mechanism;
51. a conversion tube body; 511. a tube body passage; 512. a pin shaft piston cavity;
52. positioning a limiting pin shaft; 521. a small diameter portion; 522. a large diameter portion;
53. a pin spring; 54. a pin fixing ring; 55. a filter screen;
61. a first butt joint pipe; 611. a first plug hole; 612. a second plug hole; 613. sealing the hole;
62. a second butt joint pipe; 621. a plug; 622. a sealing column; 623. a seal ring;
70. the inner pipe column is put into an oil pipe; 71. shearing pins; 72. a lower joint of the oil pipe is lowered; 73. disconnecting the joint;
81. a first centralizer; 811. centralizing the pipe body; 812. centralizing blocks; 813. centralizing the spring; 814. centralizing the upper ring; 815. centralizing the lower ring;
82. a second centralizer; 83. and (5) butting a transition pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The present invention provides a hydraulic jet drilling string, as shown in fig. 1 to 4, comprising: an outer pipe column 1 and an inner pipe column 2 arranged in the outer pipe column 1; the outer column 1 includes: an outer tube body 10 and a guide 30, wherein the inner wall of the outer tube body 10 is provided with a first step 11 and a second step 12 which are distributed along the direction 3 from bottom to top; the guide 30 is connected to the lower end of the outer tube body 10 and is provided with a rubber tube travel channel 301; the inner tube post includes: the nozzle 40, the injection hose 41, the motion converting mechanism 50, the first butt joint pipe 61, the second butt joint pipe 62 and the inner tubular column lower oil pipe 70; the injection rubber tube 41 is arranged in the rubber tube travelling channel 301 and can move in the rubber tube travelling channel 301, and the nozzle 40 is connected to the lower end of the injection rubber tube 41; the motion conversion mechanism 50 comprises a pin spring 53, a conversion tube body 51 connected to the upper end of the injection hose 41, and a positioning limiting pin 52 mounted on the conversion tube body 51, wherein the conversion tube body 51 is arranged between the first step 11 and the second step 12, and the conversion tube body 51 can pass over the first step 11 and can be blocked by the second step 12; the pin spring 53 is connected to the positioning restricting pin 52 so that the positioning restricting pin 52 has a tendency to protrude outward to block the motion converting mechanism 50 from passing over the first step 11; the positioning limiting pin shaft 52 can shrink inwards under the condition that the conversion pipe body 51 is filled with the sand slurry; the first interfacing tube 61 is connected to the upper end of the switching tube body 51; the second butt joint pipe 62 can be spliced with the first butt joint pipe 61 and is communicated with the first butt joint pipe 61; an inner tubular string lower run in pipe 70 is connected to the upper end of the second nipple 62 and secured by shear pins 71.
By using the hydraulic jet drilling pipe column, the outer pipe column 1 and the inner pipe column can be firstly put into a specified stratum, then casing windowing is carried out, and stratum drilling is carried out.
As shown in fig. 7 and 8, when the pipe string is run down, the first butt joint pipe 61, the motion converting mechanism 50, the nozzle 40 and the injection hose 41 in the inner pipe string may be installed in the outer pipe string 1, and run down into a specified formation together with the outer pipe string 1; then, as shown in fig. 9 and 10, the inner tubular string of the inner tubular string is lowered into the oil pipe 70 and the second butt joint pipe 62 are lowered into the outer tubular string 1, and are butt-jointed with the first butt joint pipe 61, completing the assembly of the inner tubular string; as shown in fig. 11 and 12, a sand slurry is then introduced into the inner string 2 to perform casing windowing, as shown in fig. 13 and 14, followed by formation drilling.
The length of the inner tubular string 70 in the inner tubular string 2 is determined according to the well depth to be operated, and is generally long, and in the hydraulic jet drilling tubular string, the inner tubular string 70 and the outer tubular string 1 can be separately run; in the process of the inner string running-in oil pipe 70 running-in, the first butt joint pipe 61, the action switching mechanism 50, the nozzle 40 and the injection rubber pipe 41 which are already running can be in butt joint, so that the inner string and the outer string 1 can be conveniently and smoothly run into a specified stratum.
In the hydraulic jet drilling pipe column, the jet pipe 41 and the nozzle 40 are arranged in the outer pipe column 1 together, so that the situation that the jet pipe 41 is blocked and can not be arranged in the outer pipe column 1 can be reduced.
In the process of butting the second butting pipe 62 with the first butting pipe 61, the positioning limiting pin shaft 52 in the motion conversion mechanism 50 is in an extending state, so that the motion conversion mechanism 50 can be prevented from crossing the first step 11, the first step 11 provides upward supporting force for the motion conversion mechanism 50 and the first butting pipe 61, and impact force generated by butting acts on the positioning limiting pin shaft 52 and the first step 11, so that the second butting pipe 62 and the first butting pipe 61 can be ensured to finish butting smoothly.
After casing windowing is completed, the inner tubular string is required to be moved downward to allow the nozzles 40 to pass through the windowed window and into the formation for drilling. When the sleeve is windowed and the stratum is drilled, the mortar liquid is introduced into the inner pipe column, and flows through the action switching mechanism 50, so that the positioning limiting pin shaft 52 is contracted inwards, and the action switching mechanism 50 can downwards pass through the first step 11 due to the fact that the switching pipe body 51 in the action switching mechanism 50 can pass through the first step 11, and at the moment, the inner pipe column 2 is opened in a descending state, and the nozzle 40 can downwards move to enter the stratum through the windowed window, so that the stratum is drilled smoothly.
In the process of opening the window, the positioning limiting pin shaft 52 is in a contracted state under the action of the sand slurry, but the conversion tube body 51 can be blocked by the second step 12, so that the movement conversion mechanism 50 can be blocked from moving upwards, the movement conversion mechanism 50 is limited to the second step 12, the pretightening force required for opening the window is provided for the inner tube column 2, and the position of the nozzle 40 is kept stable.
After the drilling is completed, the nozzle 40 and the injection hose 41 are retracted to the in-process state; stopping the introduction of the mortar slurry, and positioning the stopper pin 52 to protrude outward, and restricting the motion converting mechanism 50, the nozzle 40, and the injection hose 41 below the second step 12 because the converting pipe body 51 can be blocked by the second step 12; lifting the inner pipe column, namely shearing a shearing pin 71 between the inner pipe column lower oil pipe 70 and the second butt joint pipe 62, disconnecting the inner pipe column lower oil pipe 70 from the second butt joint pipe 62, and continuously lifting the inner pipe column lower oil pipe 70; and lifting the outer pipe column 1, and lifting the hydraulic jet drilling pipe column. By adopting the tripping-out mode, the tripping-out operation of the pipe column is conveniently and smoothly completed.
The hydraulic jet drilling pipe column avoids the operation mode of putting into the drilling pipe column after the casing windowing is finished, but firstly completes the pipe column putting into operation, then carries out casing windowing and stratum drilling, can smoothly complete the pipe column putting into operation and the pipe column lifting operation, and relieves the technical problems of high difficulty in putting into the drilling pipe column, multiple operation links and high operation cost in hydraulic jet drilling operation.
As shown in fig. 1 and 4, the lower end of the hose traveling passage 301 may extend laterally, and the injection hose 41 may move in the hose traveling passage 301. The lower end of the rubber tube travelling channel 301 is provided with a third step, the nozzle 40 is provided with a fourth step matched with the third step, and the nozzle 40 can be prevented from moving into the rubber tube travelling channel 301 by clamping the fourth step on the third step so as to position the nozzle 40. The injection rubber tube 41 is respectively connected with the conversion tube 51 and the nozzle 40 by adopting a sealing tube in a threaded manner and is sealed, and the length of the injection rubber tube 41 can be designed according to the drilling length; preferably, the seal tube thread is a 60 ° seal tube thread.
In one embodiment of the invention, the outer pipe body 10 comprises a butt joint outer pipe 20, an uplink limiting coupling 21, a fixture positioning coupling 22 and a rubber pipe outer pipe 23 which are sequentially distributed from top to bottom, and the guide 30 is connected to the lower end of the rubber pipe outer pipe 23; the first step 11 is arranged between the fixture positioning coupling 22 and the outer tube 23 of the rubber tube, and the second step 12 is arranged between the uplink limiting coupling 21 and the fixture positioning coupling 22. As shown in fig. 3, in the initial state, the conversion pipe body 51 is installed between the upward limit collar 21 and the outer pipe 23 of the rubber pipe, and by setting the upward limit collar 21, the tooling positioning collar 22, and the valve inner wall size of the outer pipe 23 of the rubber pipe, and the outer diameter size of the conversion pipe body 51, it is possible to realize that the conversion pipe body 51 can go over the first step 11 and can be blocked by the second step 12. By providing the second step 12, the inner string is prevented from moving upward; the first step 11 is provided, and the degree of freedom of downward movement of the inner pipe string 2 can be controlled by the mortar liquid in the inner pipe string 2.
Specifically, two ends of the outer butt joint pipe 20 are oil pipe buckles, the upper end of the outer butt joint pipe 20 is used for being connected with an anchor, and the lower end of the outer butt joint pipe 20 is connected with an uplink limiting coupling 21; the upward limit coupling 21, the tooling positioning coupling 22 and the outer tube 23 of the rubber tube are connected by adopting oil pipe buckles, the butt joint outer tube 20 can be the same as the inner diameter of the outer tube 23 of the rubber tube, and the inner diameter of the upward limit coupling 21 is smaller than the inner diameter of the outer tube 23 of the rubber tube; the two ends of the tooling positioning coupling 22 are provided with couplings; the two ends of the outer tube 23 of the rubber tube are provided with oil pipe buckles, and the length of the outer tube 23 of the rubber tube is related to the drilling length index. The butting outer tube 20, the ascending limiting coupling 21, the fixture positioning coupling 22, the rubber tube outer tube 23 and the guider upper joint 32 can be connected by adopting a tubing buckle. The anchor can be fixed by adopting a unidirectional slip, and the slip is anchored and released by lifting and lowering.
In one embodiment of the present invention, as shown in fig. 3, the conversion tube 51 is provided with a tube passage 511 and a pin piston cavity 512, the upper end of the tube passage 511 is communicated with the first butt joint tube 61, and the lower end of the tube passage 511 is communicated with the injection rubber tube 41; the pin shaft piston cavity 512 is communicated with the pipe body channel 511, the positioning limiting pin shaft 52 is arranged in the pin shaft piston cavity 512, and the sand slurry in the pin shaft piston cavity 512 can generate an outward driving force for the positioning limiting pin shaft 52.
The pin shaft piston cavity 512 is disposed along the radial direction of the conversion tube body 51, and the positioning limiting pin shaft 52 is slidably matched with the side wall of the pin shaft piston cavity 512 and can move along the radial direction of the conversion tube body 51 in the pin shaft piston cavity 512. Further, the motion conversion mechanism 50 includes a pin fixing ring 54, a mounting hole for mounting a pin spring 53 is provided at the bottom of the positioning limiting pin 52, and the pin spring 53 is disposed in the mounting hole along the radial direction of the conversion tube 51; as shown in fig. 3 and 5, the positioning limiting pin 52 is designed with steps to form a small diameter part 521 and a large diameter part 522, the side wall of the large diameter part 522 is designed with an O-ring groove for matching with the side wall of the pin piston cavity 512, and the O-ring groove is provided with a sealing O-ring; the pin shaft fixing ring 54 is in threaded connection with the opening of the pin shaft piston cavity 512 and is sealed by an O-ring, the small diameter part 521 of the positioning limiting pin shaft 52 penetrates out of the pin shaft fixing ring 54, the small diameter part 522 of the positioning limiting pin shaft 52 is sealed by the O-ring, the pin shaft piston cavity 512 is divided into two first cavities and second cavities which are separated from each other, the first cavities are positioned on the inner side of the large diameter part 522, the second cavities are positioned on the outer side of the large diameter part 522, the pipe body channel 511 is communicated with the second cavities in the axial direction, and mortar liquid flows into the second cavities, so that the positioning limiting pin shaft 52 can be pushed to move inwards. Preferably, the positioning limiting pin 52 is designed with an orifice in communication with the first chamber, which orifice acts as a breathing orifice. More preferably, both end surfaces of the large diameter portion 522 are respectively designed with bosses for preventing hydraulic locking. As shown in FIG. 5, the body passage 511 is of an eccentric design for the passage of slurry containing abrasive materials.
Further, a filter screen 55 is arranged between the pin shaft piston cavity 512 and the pipe body channel 511. The mortar liquid enters the second cavity in the pin shaft piston cavity 512 through the filter screen 55, and the purpose of driving the positioning limiting pin shaft 52 to retract during operation is achieved.
In one embodiment of the present invention, as shown in fig. 2, the lower end of the lower oil pipe 70 of the inner pipe column is connected with a lower oil pipe lower joint 72, the upper end of the second butt joint pipe 62 is connected with a disconnecting joint 73, and the lower oil pipe lower joint 72 can be plugged into the disconnecting joint 73; the shear pin 71 is disposed radially of the trip joint 73 and is connected to the lower run-in tubing joint 72 and the trip joint 73.
Specifically, the inner tubular string lower run-in tubing 70 is threaded with the lower run-in tubing lower joint 72 and sealed with an O-ring; the lower joint 72 of the lower oil pipe is connected with the disconnecting joint 73 by adopting disconnecting nails and is sealed by O rings; the disconnection fitting 73 is screwed with the second butt joint 62 and sealed with an O-ring.
In an embodiment of the present invention, as shown in fig. 2, the first connecting tube 61 is provided with a first jack 611 and a second jack 612 which are distributed from top to bottom, and the inner diameter of the first jack 611 is smaller than the inner diameter of the second jack 612; the second butt joint pipe 62 is provided with a plug connector 621, the plug connector 621 can be retracted inwards to pass over the first plug hole 611, and the plug connector 621 can be clamped in the second plug hole 612. Specifically, the plug connector 621 may include a plurality of circumferentially distributed engagement claws, the engagement claws have elasticity, the plug connector 621 is inserted into the first insertion hole 611, the engagement claws can retract inward to pass over the first insertion hole 611 and enter the second insertion hole 612, and the engagement claws are prevented from moving toward the first insertion hole 611, and the plug connector 621 is clamped to the second insertion hole 612, so as to achieve the engagement of the first engagement pipe 61 and the second engagement pipe 62.
Further, the first butt joint pipe 61 is provided with a sealing hole 613 above the first insertion hole 611, the second butt joint pipe 62 is provided with a sealing post 622 above the insertion hole 621, and a side wall of the sealing post 622 is provided with a sealing ring 623 capable of being matched with an inner wall of the sealing hole 613. Specifically, the side wall of the sealing post 622 is designed with a sealing groove for mounting the sealing ring 623. Preferably, the upper end of the sealing hole 613 is designed with a flare so that the second docking tube 62 is docked.
In one embodiment of the present invention, a first centralizer 81 is connected between the first docking tube 61 and the transfer tube body 51. By providing the first centralizer 81, the position of the first nipple 61 may be maintained stable, reducing deflection of the first nipple 61 within the outer tubular string 1, facilitating the second nipple 62 to be docked with the first nipple 61. As shown in fig. 3, the switching tube 51 is connected with the first centralizer 81 through a butt joint transition tube 83; the butt-joint transition pipe 83 is screwed with the conversion pipe body 51 and is sealed at the end face.
Further, the first centralizer 81 includes a centralizing pipe body 811, a centralizing spring 813, and a plurality of centralizing blocks 812, both ends of the centralizing pipe body 811 being connected to the first docking pipe 61 and the switching pipe body 51, respectively; the centering blocks 812 are connected to the centering pipe body 811 and are movable in the radial direction of the centering pipe body 811, and a plurality of centering pipe bodies 811 are circumferentially distributed around the centering pipe body 811; the centering spring 813 is connected with the centering block 812, and can drive the centering block 812 to move outwards to be abutted with the outer pipe column 1 so as to reduce deflection of the inner pipe column. Specifically, the centering pipe body 811 is screwed with the butt transition pipe 83 and sealed at the end face, and the first butt pipe 61 is screwed with the centering pipe body 811 and sealed at the O-ring.
As shown in fig. 3, a sinking groove for placing the centering block 812 is designed in the circumferential direction of the centering pipe body 811, and a centering spring 813 is installed inside the inner pipe centering block 812. Preferably, four groups of centralizing blocks 812 are uniformly arranged on the circumference, and the centralizing blocks play a role in centralizing after being expanded. The first centralizer 81 further includes a centralizing upper ring 814 and a centralizing lower ring 815, the centralizing upper ring 814 and the centralizing lower ring 815 are respectively in threaded connection with the centralizing pipe body 811, and the centralizing upper ring 814 and the centralizing lower ring 815 radially limit the centralizing block 812.
Further, as shown in fig. 6, a second centralizer 82 is disposed between the second nipple 62 and the inner tubular string run-in tubing 70, and the second centralizer 82 performs a centralizing function on the second nipple 62 to reduce deflection of the second nipple 62 during run-in, thereby facilitating the second nipple 62 to be butted against the first nipple 61.
In one embodiment of the present invention, the outer tubular post 1 includes a guide housing 31 connected to the lower end of the outer tubular body 10, and as shown in fig. 17 and 18, the guide housing 31 is provided with a through groove 311 penetrating radially, and the guide 30 is fixedly disposed in the through groove 311. With this structure, the assembly between the guide 30 and the guide housing 31 can be facilitated. In some cases, fixation between the guide 30 and the guide housing 31 may be achieved by connecting nails; preferably, the connecting pin is perpendicular to the axial direction of the guide housing 31 and perpendicular to the penetrating direction of the through groove 311.
As shown in fig. 4, the outer string 1 includes a guide upper joint 32, a hose guide ring 33, a guide stopper ring 34, and a guide positioning and centering joint 35. The two ends of the guide shell 31 are provided with common threads, and are respectively connected with the guide upper joint 32 and the guide positioning and righting joint 35, the guide upper joint 32 is connected with the guide shell 31 through the common threads, the guide positioning and righting joint 35 is connected with the guide shell 31 through the threads, and the rubber tube outer tube 23 and the guide upper joint 32 are connected through a tubing buckle; the upper end of the guide positioning and centering joint 35 is provided with a solid step which is embedded into a positioning hole at the lower end of the guide 30, and the lower side of the guide positioning and centering joint 35 is provided with centering. The guide limiting ring 34 is sleeved outside the guide shell 31, the guide limiting ring 34 surrounds the guide 30, and the guide 30 can be radially limited; the rubber tube guide ring 33 is inserted into the guide housing 31 and abuts against the guide 30, and can perform circumferential alignment of the guide 30.
In one embodiment of the present invention, the guide 30 is a snap-in guide 302 and the nozzle 40 is a snap-in nozzle. The hydraulic jet drilling pipe column can be applied to the case of casing, and can also be applied to open hole and direct drilling.
Example two
The present invention provides a hydraulic jet drilling method, using the hydraulic jet drilling pipe column described above, as shown in fig. 19, comprising: step S10, installing the nozzle 40, the injection hose 41, the motion conversion mechanism 50 and the first butt joint pipe 61 in the outer tubular column 1; step S20, the outer pipe column 1 is lowered into a designated stratum; step S30, a second butt joint pipe 62 and an inner pipe column lower oil pipe 70 are sequentially put in, so that the second butt joint pipe 62 is spliced and communicated with the first butt joint pipe 61; step S40, introducing mortar liquid into the inner pipe column, enabling the mortar liquid entering the conversion pipe body 51 to enable the positioning limiting pin shaft 52 to shrink inwards, and simultaneously, spraying the mortar liquid outwards through the nozzle 40 to window the sleeve; step S50, pushing the inner pipe column to descend, enabling the nozzle 40 to enter the stratum through the windowed window to drill holes, and continuously advancing to achieve long-distance drilling of the stratum.
By using the hydraulic jet drilling pipe column, the outer pipe column 1 and the inner pipe column 2 can be firstly put into a specified stratum, then casing windowing is carried out, and stratum drilling is carried out. In the process of the pipe column running, the first butt joint pipe 61, the motion conversion mechanism 50, the nozzle 40 and the injection rubber pipe 41 in the inner pipe column 2 can be installed in the outer pipe column 1 and run into a specified stratum along with the outer pipe column 1; then, the inner pipe column in the inner pipe column 2 is lowered into the oil pipe 70 and the second butt joint pipe 62 are lowered into the outer pipe column 1, and are in butt joint with the first butt joint pipe 61, so that the assembly of the inner pipe column 2 is completed; and then introducing sand slurry into the inner pipe column 2, windowing the casing, and then drilling the stratum.
The hydraulic jet drilling pipe column avoids the operation mode of putting into the drilling pipe column after the casing windowing is finished, but firstly completes the pipe column putting into operation, then carries out casing windowing and stratum drilling, can smoothly complete the pipe column putting into operation and the pipe column lifting operation, and relieves the technical problems of high difficulty in putting into the drilling pipe column, multiple operation links and high operation cost in hydraulic jet drilling operation.
In one embodiment of the present invention, the hydraulic jet drilling method includes: step S60, lifting the inner pipe column to enable the inner pipe column to be in a stretching state; step S60 is provided between step S30 and step S40. With the hydraulic jet drilling pipe column, the outer diameter of the conversion pipe body 51 is larger than the inner diameter of the upward limit coupling 21, so that the upward limit coupling 21 bears upward force, the jet rubber pipe 41 cannot bear force, and the jet rubber pipe 41 and the nozzle 40 are effectively protected.
The hydraulic jet drilling method may employ the hydraulic jet drilling apparatus shown in fig. 1, and the hydraulic jet drilling method will be specifically described below by way of example for ease of understanding.
In step S10, before being run into the well, as shown in fig. 7 and 8, the main composition of the drill string includes the entire outer string 1 and a part of the inner string, wherein the inner string includes the first docking pipe 61, the first centralizer 81, the docking transition pipe 83, the motion converting mechanism 50, the injection hose 41 and the nozzle 40, and the part of the inner string is built into the outer string 1 at the time of assembly.
In a pressureless environment, the positioning limiting pin shaft 52 is in an extending state and is clamped at a first step 11 formed by the tool positioning coupling 22 and the rubber tube outer tube 23. The detent pin 52 is designed to withstand 10-15t pressures.
The centralizing block 812 is always in an expanded state due to the centralizing spring 813, thereby performing a centralizing function, and ensuring that the first docking pipe 61 is in a central position.
Step S20 includes: the upper end of the butt joint outer pipe 20 in the outer pipe column 1 is connected with an anchor, and the outer pipe column 1 is anchored after the anchor is lowered into a specified stratum by a common oil pipe. As shown in fig. 7 and 8, the hydrajet borehole string is in a run-in condition.
Step S30 includes: the second butt joint pipe 62, the disconnecting joint 73, the lower joint 72 of the lower oil pipe and the small-diameter oil pipe are sequentially arranged in the oil pipe, the butt joint claw at the front end of the second butt joint pipe 62 passes through the first plug hole 611 and enters the second plug hole 612, and then the inner pipe column is lifted up, so that the butt joint is realized without disconnection. During the docking process, the positioning limiting pin shaft 52 is always in an extended state, and the impact force generated by the docking of the inner pipe column is completely acted on the positioning limiting pin shaft. After the butt joint is completed, the inner pipe column is lifted up, and the inner pipe column is kept in a stretching state. As shown in fig. 9 and 10, the hydraulic jet borehole string is in a docked state.
Step S40 includes: after the butt joint is completed, the stratum can be radially drilled. When the sleeve needs to be windowed, high-pressure sand slurry is injected into the inner pipe column, the sand slurry flows downwards through the inner pipe column, and when the sand slurry passes through the motion conversion mechanism 50, a part of the sand slurry enters the pin shaft piston cavity 512 through the filter screen 55, and the positioning limiting pin shaft 52 is pushed to retract, so that the inner pipe column descending space is opened; the other part of the sand slurry passes through the pipe body channel 511 with the motion converted and then passes through the injection rubber pipe 41 and the nozzle 40 to realize the windowing motion of the sleeve. As shown in fig. 11 and 12, the hydraulic jet borehole string is in a windowed state.
Step S50 includes: after the window is opened, the inner pipe column is pushed to descend by the ground at the moment because the inner pipe column is opened in a descending state, and the nozzle 40 enters the stratum to drill holes through the window to form effective holes for communicating stratum energy. As shown in fig. 13 and 14, the hydraulic jet borehole string is in a borehole state.
After the drilling is completed, the inner pipe column is lifted up, the nozzle 40 and the injection rubber pipe 41 are retracted to a lower state, and reset is carried out; as shown in fig. 15 and 16, the motion converting mechanism 50 is moved upward to the upward-moving limiting collar 21 due to the disappearance of the pressure in the inner column 2; the positioning limiting pin shaft 52 extends out, and meanwhile, the inner pipe column 2 is clamped at the upper limiting coupling 21 due to the difference of inner diameters. At this time, the lifting tonnage of the inner pipe column is continuously increased, the shear pin 71 is sheared, the upper part of the inner pipe column is lifted, the inner pipe column is separated, and then the upper part of the inner pipe column 2 can be lifted. After the inner pipe column 2 is separated, the outer pipe column 1 can be lifted up. As shown in fig. 15 and 16, the hydraulic jet borehole string is in a disengaged and tripped out condition.
After the tubular column is pulled out, continuous windowing and drilling actions can be carried out on different stratum according to the procedures of running-in, abutting joint, windowing, drilling, disengaging and pulling out.
According to the hydraulic jet drilling pipe column and the hydraulic jet drilling method, the abrasive hydraulic radial drilling operation on different strata can be realized without ball throwing and displacement compensation and step-by-step implementation of two procedures of the windowing pipe column and the drilling pipe column, the process flow is simplified, the operation is simple, the design is novel, convenience and practicability are realized, and the site construction process is met.
The size of the illustration is schematic, and the actual length of the pipe column is matched according to the drilling length requirement. The foregoing is merely a few embodiments of the present invention and those skilled in the art may make various modifications or alterations to the embodiments of the present invention in light of the disclosure herein without departing from the spirit and scope of the invention.
Claims (12)
1. A hydraulic jet drilling string, comprising: an outer pipe column and an inner pipe column arranged in the outer pipe column;
the outer tubular post includes:
the inner wall of the outer pipe body is provided with a first step and a second step which are distributed from bottom to top;
the guide device is connected to the lower end of the outer pipe body and is provided with a rubber pipe advancing channel;
the inner tubular post includes:
a nozzle;
the spray hose can move in the hose travelling channel, and the nozzle is connected to the lower end of the spray hose;
the action conversion mechanism comprises a pin spring, a conversion tube body connected to the upper end of the injection rubber tube and a positioning limiting pin shaft arranged on the conversion tube body, the conversion tube body is arranged between the first step and the second step, and can pass over the first step and can be blocked by the second step; the pin shaft spring is connected with the positioning limiting pin shaft, so that the positioning limiting pin shaft has a trend of extending outwards to prevent the action conversion mechanism from crossing the first step; the positioning limiting pin shaft can shrink inwards under the condition that the conversion pipe body is filled with sand slurry;
a first butt joint pipe connected to the upper end of the conversion pipe body;
the second butt joint pipe can be spliced with the first butt joint pipe and is communicated with the first butt joint pipe;
the inner pipe column is connected with the upper end of the second butt joint pipe through a shearing pin.
2. The hydraulic jet drilling string of claim 1, wherein the transition tube body is provided with a tube body channel and a pin piston cavity, the upper end of the tube body channel is communicated with the first butt joint tube, and the lower end of the tube body channel is communicated with the jet rubber tube; the pin shaft piston cavity is communicated with the pipe body channel, and the positioning limiting pin shaft is arranged in the pin shaft piston cavity.
3. The hydraulic jet drilling string of claim 2, wherein a filter screen is disposed between the pin piston chamber and the tubular body passage.
4. The hydraulic jet drilling string according to claim 1, wherein the first butt joint pipe is provided with a first plug hole and a second plug hole which are distributed from top to bottom, and the inner diameter of the first plug hole is smaller than the inner diameter of the second plug hole;
the second butt joint pipe is provided with a plug connector, the plug connector can shrink inwards to cross the first plug hole, and the plug connector can be clamped in the second plug hole.
5. The hydraulic jet drilling string of claim 4 wherein the first butt joint pipe is provided with a sealing hole above the first plug hole, the second butt joint pipe is provided with a sealing post above the plug, and a side wall of the sealing post is provided with a sealing ring capable of being matched with an inner wall of the sealing hole.
6. The hydraulic jet drilling string of claim 1, wherein a first centralizer is connected between the first nipple and the transition tube body.
7. The hydraulic jet drilling string of claim 6 wherein a second centralizer is disposed between the second nipple and the inner string run-in tubing.
8. The hydraulic jet drilling string according to claim 1, wherein a lower end of the lower oil pipe of the inner tubular is connected with a lower oil pipe lower joint, an upper end of the second butt joint pipe is connected with a disconnecting joint, and the lower oil pipe lower joint can be plugged into the disconnecting joint; the shearing pin is arranged along the radial direction of the disconnecting joint and is connected with the lower joint of the lower oil pipe and the disconnecting joint.
9. The hydraulic jet drilling tubular column according to claim 1, wherein the outer tubular body comprises a butt joint outer tube, an uplink limiting coupling, a tool positioning coupling and a rubber tube outer tube which are sequentially distributed from top to bottom, and the guide is connected to the lower end of the rubber tube outer tube; the first step is arranged between the tool positioning coupling and the outer tube of the rubber tube, and the second step is arranged between the uplink limiting coupling and the tool positioning coupling.
10. The hydraulic jet drilling string of claim 1, wherein the outer tubular string comprises a guide housing connected to the lower end of the outer tubular body, the guide housing having a through slot extending radially therethrough, the guide being fixedly disposed within the through slot.
11. A hydraulic jet drilling method employing the hydraulic jet drilling string of any one of claims 1-10, the hydraulic jet drilling method comprising:
s10, installing the nozzle, the injection rubber tube, the motion conversion mechanism and the first butt joint pipe in the outer pipe column;
step S20, the outer tubular column is lowered into a designated stratum;
step S30, the second butt joint pipe and the inner pipe column are sequentially put into the oil pipe, so that the second butt joint pipe is spliced and communicated with the first butt joint pipe;
step S40, introducing mortar liquid into the inner pipe column, enabling the mortar liquid entering the conversion pipe body to enable the positioning limiting pin to shrink inwards, and simultaneously, spraying the mortar liquid outwards through the nozzle to window the sleeve;
and S50, pushing the inner pipe column to descend, and enabling the nozzle to enter the stratum through the windowed window to drill holes.
12. The method of hydraulic jet drilling according to claim 11, characterized in that the method of hydraulic jet drilling comprises: step S60, lifting the inner pipe column so as to keep the inner pipe column in a stretched state;
step S60 is provided between step S30 and step S40.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010964943.1A CN114183076B (en) | 2020-09-15 | 2020-09-15 | Hydraulic jet drilling pipe column and hydraulic jet drilling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010964943.1A CN114183076B (en) | 2020-09-15 | 2020-09-15 | Hydraulic jet drilling pipe column and hydraulic jet drilling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114183076A CN114183076A (en) | 2022-03-15 |
| CN114183076B true CN114183076B (en) | 2023-07-25 |
Family
ID=80539682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010964943.1A Active CN114183076B (en) | 2020-09-15 | 2020-09-15 | Hydraulic jet drilling pipe column and hydraulic jet drilling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114183076B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876370B (en) * | 2022-06-01 | 2023-03-28 | 中国石油大学(北京) | Multi-point directional jet drilling tool and method of use thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2377719B (en) * | 2000-02-16 | 2004-08-25 | Performance Res & Drilling Llc | Horizontal directional drilling in wells |
| CN101748970B (en) * | 2009-12-15 | 2013-09-04 | 中国石油集团长城钻探工程有限公司 | Ultra-short radius radial drilling tool system |
| CN203847087U (en) * | 2013-11-08 | 2014-09-24 | 中国石油天然气股份有限公司 | Hydraulic jet drilling string |
| CN103615226A (en) * | 2013-11-08 | 2014-03-05 | 中国石油天然气股份有限公司 | Drilling and fracturing method by hydraulic jetting |
| CN204113117U (en) * | 2014-09-29 | 2015-01-21 | 中国石油天然气股份有限公司 | Abrasive water-jet radial bore device |
| CN104832092A (en) * | 2015-05-18 | 2015-08-12 | 山东科瑞国际油气工程有限公司 | Hydraulic jet sidetracking process |
| CN108131109B (en) * | 2017-12-15 | 2020-06-16 | 中国石油大学(北京) | Sidetracking radial well windowing tool and method |
-
2020
- 2020-09-15 CN CN202010964943.1A patent/CN114183076B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114183076A (en) | 2022-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2018204195B2 (en) | Apparatus and method for controlling the connection and disconnection speed of downhole connectors | |
| CN106574492B (en) | Multilateral well system | |
| US8720561B2 (en) | Sliding stage cementing tool and method | |
| US8794337B2 (en) | Apparatus and method for controlling the connection and disconnection speed of downhole connectors | |
| US4474243A (en) | Method and apparatus for running and cementing pipe | |
| CN115324550B (en) | Hydraulic coiled tubing dragging fracturing tool and technological method | |
| EP3004521B1 (en) | System and methods for recovering hydrocarbons | |
| US11111738B2 (en) | Releasable connection mechanism for use within a well | |
| CN114183076B (en) | Hydraulic jet drilling pipe column and hydraulic jet drilling method | |
| CN109441399A (en) | One kind can sand washing bridge plug | |
| CN203420698U (en) | Well completion fracture integrated pipe column for open hole horizontal well | |
| CN110017127B (en) | Acid fracturing water control integrated device, acid fracturing water control pipe column and acid fracturing water control method | |
| US2495642A (en) | Wash valve for wells | |
| CN108952665B (en) | Hydraulic slotting device of semi-submersible drilling platform or drilling ship | |
| CN113090227B (en) | Multilayer quick-dissolving fracturing string | |
| US4192378A (en) | Port valve isolation packer | |
| CN113931591A (en) | Whipstock with recyclable top and use method thereof | |
| CN113803019B (en) | Well completion method and string for horizontal well | |
| CN114876370B (en) | Multi-point directional jet drilling tool and method of use thereof | |
| CN115263200A (en) | Multilateral well drilling and completion pipe string and construction method | |
| CN117759213A (en) | Fracturing nipple, fracturing nipple method and tubular column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |