CN108071342B - Adjustable reposition of redundant personnel unbalance weight synergism formula drilling tool - Google Patents
Adjustable reposition of redundant personnel unbalance weight synergism formula drilling tool Download PDFInfo
- Publication number
- CN108071342B CN108071342B CN201810092369.8A CN201810092369A CN108071342B CN 108071342 B CN108071342 B CN 108071342B CN 201810092369 A CN201810092369 A CN 201810092369A CN 108071342 B CN108071342 B CN 108071342B
- Authority
- CN
- China
- Prior art keywords
- threaded connection
- drill collar
- adjustable
- drill
- joint
- 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 84
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 238000009991 scouring Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 8
- 238000012937 correction Methods 0.000 abstract description 8
- 239000003208 petroleum Substances 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 239000011435 rock Substances 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000003068 static effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000011160 research Methods 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
- E21B7/04—Directional drilling
- E21B7/10—Correction of deflected boreholes
-
- 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
- E21B10/00—Drill bits
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/16—Drill collars
-
- 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
- E21B7/04—Directional drilling
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses an adjustable shunt weight bias synergistic drilling tool, which consists of an adjustable weight bias drill collar, an adjustable single-acting mechanism, an anti-scouring mechanism, an outer pipe, an inner pipe, a shunt element, a reamer, a core clamping mechanism and a drill bit, wherein the adjustable weight bias drill collar, the adjustable single-acting mechanism, the inner pipe, the shunt element and the core clamping mechanism are sequentially connected together in a threaded manner, the anti-scouring mechanism is positioned at the lower part of the adjustable single-acting mechanism and is connected with the adjustable single-acting mechanism in a threaded manner, and the adjustable weight bias drill collar, the outer pipe, the reamer and the drill bit are sequentially connected together in a threaded manner. The invention can realize two functions of straightening and correcting the inclination, the conversion between the two functions is convenient, the practicability is strong, the invention can be used in various fields of geological core drilling, hydrologic well construction, petroleum drilling and the like, the application range is wide, and the three principles of the centrifugal force of the unbalanced drill collar and the pendulum force of the heavy drilling tool are combined for correcting the inclination of the drilling, the effect is obvious, and the inclination correction efficiency is high.
Description
Technical Field
The invention relates to the field of drilling straightening and correcting in drilling engineering, in particular to an adjustable diversion and weight deviation cooperative drilling tool.
Background
In engineering construction of drilling engineering, the actual drilling trajectory often deviates from the designed trajectory due to natural and technical factors, a phenomenon called drilling bending or drilling deflection. The direct consequence of the deviation of the borehole from the design trajectory (bending) is that it affects the accuracy of the geological data and the calculation of the reserves of the deposit, or it does not reach the intended geological purpose at all, resulting in the borehole being scrapped, with a significant economic loss. Thus, the provision of the degree of borehole bending is one of six basic indicators for evaluating the quality of drilling engineering.
Meanwhile, the damage of drilling bending to drilling construction is also great. Curved drilling will increase the frictional resistance of the drill tool to the bore wall, also easily causing drill pipe breakage and increased useless power consumption. In a severely bent hole section, the hole wall of an incomplete rock and mineral layer is often collapsed due to the violent knocking of a drill rod, so that the clamping and drilling accidents are caused. Moreover, accidents in the bending drilling are complex and difficult to treat. Drilling bending can also lead to the deep-well pump unable to go into the water well or prematurely damage, and drilling pile construction can cause pile foundation slope, reduces pile foundation bearing capacity scheduling problem.
By adopting a reasonable drilling tool structure, higher concentricity can be ensured, the rigidity of the drilling tool is improved, the gap between the drilling tool and the hole wall is reduced, hole bottom pressurization is realized, the stability and the guide effect of the drilling tool are enhanced so as to improve the inclination prevention capability of the drilling tool, and the common inclination prevention tools mainly comprise three types, namely a pendulum drilling tool, a unbalanced drilling tool and a full-hole drilling tool, which have certain defects. The pendulum drilling tool has large mass and low anti-tilting capability; the unbalanced drilling tool has higher requirements on equipment; full-bore drilling tools do not have the ability to correct skew. Therefore, all three are not practical, and the requirements of high-speed development of drilling engineering in China are difficult to meet. Therefore, the research on the inclination correction drilling tool with good inclination correction effect, complete functions and wide practicability has very important significance.
Disclosure of Invention
The invention aims to solve the defects of the conventional pendulum drilling tool, the unbalanced drilling tool and the full-bore drilling tool in the process of drilling and correcting inclination: the pendulum drilling tool has the advantages of large mass, low anti-tilting capability, high requirement on equipment by the unbalanced drilling tool, low practicality of the three drilling tools, poor tilting correction effect and the like, and the adjustable split-flow unbalanced cooperative drilling tool is provided.
The invention consists of an adjustable unbalanced drill collar, an adjusting single-acting mechanism, an anti-scouring mechanism, an outer tube, an inner tube, a flow dividing element, a reamer, a core clamping mechanism and a drill bit, wherein the adjustable unbalanced drill collar, the adjusting single-acting mechanism, the inner tube, the flow dividing element and the core clamping mechanism are sequentially connected together through threads, the anti-scouring mechanism is positioned at the lower part of the adjusting single-acting mechanism and is in threaded connection with the adjusting single-acting mechanism, and the adjustable unbalanced drill collar, the outer tube, the reamer and the drill bit are sequentially connected together through threads.
The adjustable unbalanced weight drill collar comprises a reducing joint, a weight, a drill collar shell and a drill collar lower joint, wherein the weight is inserted into a positioning groove arranged in the drill collar shell, the reducing joint, the drill collar shell and the drill collar lower joint are sequentially connected in a threaded manner, the upper part of the reducing joint is connected with a drill rod in a threaded manner, and the lower part of the drill collar lower joint is connected with an outer pipe and a mandrel in a threaded manner;
the adjusting single-acting mechanism comprises a mandrel, an adjusting nut, a sealing ring, a bearing upper joint, a bearing support sleeve, a gasket, a nut and a bearing sleeve, wherein the adjusting nut is screwed into threads on the upper part of the mandrel for a certain distance, the upper part of the mandrel is in threaded connection with the lower part of the drill collar lower joint, the sealing ring is positioned in a groove on the inner wall of the bearing upper joint, the bearing support sleeve and the gasket are sleeved on the mandrel in sequence from top to bottom, and then the bearing upper joint, the bearing support sleeve and the gasket are in threaded connection with the mandrel by the nut so as to be fixed on the mandrel;
the anti-scouring mechanism comprises a ball valve and a ball valve seat, the ball valve is positioned in a chute at the upper part of the ball valve seat, and the ball valve seat is in threaded connection with the lower part of the bearing sleeve;
the upper part of the outer tube is in threaded connection with the lower part of the drill collar lower joint, and the lower part of the outer tube is in threaded connection with the reamer;
the upper part of the inner tube is in threaded connection with the lower part of the bearing sleeve, and the lower part of the inner tube is in threaded connection with the shunt element;
the shunt element comprises a thin-wall part and a thick-wall part, the upper part of the shunt element is in threaded connection with the lower part of the inner tube, and the lower part of the shunt element is in threaded connection with the clamp spring seat;
the upper part of the reamer is in threaded connection with the lower part of the outer tube, and the lower part of the reamer is in threaded connection with the drill bit;
the core clamping mechanism comprises a clamping spring retainer ring, a clamping spring and a clamping spring seat, wherein the clamping spring retainer ring and the clamping spring are sequentially positioned in the clamping spring seat from top to bottom, and the clamping spring seat is in threaded connection with the shunt element;
the upper part of the drill bit is in threaded connection with the lower part of the reamer.
The working principle and the process of the invention are as follows:
1. before drilling, firstly, assembling a drilling tool on the ground surface, adjusting the position of an adjusting nut to adjust the gap between a clamping spring seat and a drill bit, and simultaneously, determining the number of weight blocks placed in the unbalanced drill collar and the selection of flow dividing elements with different thickness differences between a thin wall part and a thick wall part according to specific inclination correction requirements of different drilling holes, wherein the weight difference between one side of the unbalanced drill collar where the weight blocks are placed and one side of the unbalanced drill collar where the weight blocks are not placed, namely, the weight difference between a heavy side and a light side is between 0% and 20%;
2. in the lowering process of the drilling tool, drilling fluid in the hole is filled with the inner pipe through the clamp spring seat, the ball valve is opened, the drilling fluid flows into the annular space between the inner pipe and the outer pipe through the passage, original gas in the inner pipe is discharged, after the drilling tool reaches the bottom of the hole, the slurry pump is started, the drilling fluid enters the adjusting single-acting mechanism and the annular space between the inner pipe and the outer pipe through the reducing joint and the passage, the thin-wall part and the thick-wall part of the flow dividing element are divided into two semi-annular flows with large thin-side flow and small thick-side flow, the two flows are respectively sprayed out from two sides of the drill through the water gap of the drill, auxiliary rock crushing and hole bottom cleaning are carried, the rock debris is carried, the large-side rock flow crushing and slag discharging effect is good, the small-side flow effect is poor, therefore, the drilling track can deviate towards the large-side flow, and the flow dividing element always keeps a static state and can not rotate along with the outer pipe due to the effect of the adjusting single-acting mechanism, so that stable uneven flow can be provided, and the purpose of correcting the drilling tool can be achieved as long as the position is adjusted before lowering;
3. in the drilling process, the mandrel, the adjusting nut, the sealing ring, the bearing upper joint, the bearing support sleeve, the gasket, the nut and the bearing sleeve form an adjusting single-acting system, so that the gap between the clamping spring seat and the drill bit can be adjusted, the mandrel and the mandrel above can rotate along with the drill rod, and the bearing upper joint and the bearing below keep static;
4. meanwhile, because the weight of the adjustable unbalanced drill collar is larger than the weight of the drill collar required by the bottom of the hole, the neutral point is positioned on the adjustable unbalanced drill collar, the drill bit is pushed to the lower side of the hole wall due to the transverse component force (deflection force) caused by the drill below the tangential point of the drill and the hole wall, and the centrifugal force is generated by the eccentric weight when the drill rotates due to the existence of the adjustable unbalanced drill collar, and the higher the rotating speed is, the larger the centrifugal force is, when the eccentric weight is in drilling, the centrifugal force is consistent with the pendulum force direction when the eccentric weight is in the direction of the lower side of the hole wall, so that larger impact deflection force can be generated on the hole wall, the inclination angle of the drill is gradually reduced, meanwhile, due to the periodical rotation unbalance, the lower drill string is forced to vibrate, the elastic transverse vibration can increase the capability of the drill bit to cut the lower side of the hole wall, in addition, the gravity of the adjustable unbalanced drill collar is always attached to the hole wall when rotating due to the centrifugal force, the lower drill string has the motion characteristic of revolution when the rotation is eliminated, and the influence on the inclined hole is prevented from being in the inclined hole;
5. when the straight hole needs to be protected from being inclined, the shunting element is dismounted, and the purpose of protecting from being inclined can be achieved by means of the combined action of pendulum force (inclination reducing force) and centrifugal force.
The invention has the beneficial effects that:
the invention has reasonable structure, safety and reliability, convenient installation and disassembly, relatively low cost, and can realize two functions of keeping straight and correcting inclined, and the conversion between the two functions is convenient and has strong practicability. The method can be used in various fields such as geological core drilling, hydrologic well construction, petroleum drilling and the like, and has a wide application range. The three principles of the centrifugal force of the unbalanced drill collar and the pendulum force of the heavy drilling tool are combined with the hole bottom diversion effect, so that the effect is obvious, and the inclination correction efficiency is high.
Drawings
FIG. 1 is a cross-sectional view of the structure of the present invention;
FIG. 2 is a cross-sectional view of the invention at A-A';
FIG. 3 is a cross-sectional view at B-B' of the present invention;
FIG. 4 is a cross-sectional view of a first portion of the present invention;
FIG. 5 is a cross-sectional view of a second portion of the present invention;
fig. 6 is a structural cross-sectional view of a third portion of the present invention.
Detailed Description
Referring to fig. 1, 2, 3, 4, 5 and 6, the invention is composed of an adjustable unbalanced drill collar 1, an adjusting single action mechanism 2, an anti-scouring mechanism 3, an outer tube 4, an inner tube 5, a flow dividing element 6, a reamer 7, a core clamping mechanism 8 and a drill bit 9, wherein the adjustable unbalanced drill collar 1, the adjusting single action mechanism 2, the inner tube 5, the flow dividing element 6 and the core clamping mechanism 8 are connected together in sequence by screw threads, the anti-scouring mechanism 3 is positioned at the lower part of the adjusting single action mechanism 2 and connected with the screw threads thereof, and the adjustable unbalanced drill collar 1, the outer tube 4, the reamer 7 and the drill bit 9 are connected together in sequence by screw threads;
the adjustable unbalanced weight drill collar 1 comprises a reducing joint 11, a weighting block 12, a drill collar shell 13 and a drill collar lower joint 14, wherein the weighting block 12 is inserted into a positioning groove 16 arranged in the drill collar shell 13, the reducing joint 11, the drill collar shell 13 and the drill collar lower joint 14 are sequentially connected in a threaded manner, the upper part of the reducing joint 11 is connected with a drill rod in a threaded manner, and the lower part of the drill collar lower joint 14 is connected with an outer pipe 4 and a mandrel 21 in a threaded manner;
the adjusting single-acting mechanism 2 comprises a mandrel 21, an adjusting nut 22, a sealing ring 23, a bearing upper joint 24, a bearing 25, a bearing support sleeve 26, a gasket 27, a nut 28 and a bearing sleeve 29, wherein the adjusting nut 22 is arranged at the upper part of the mandrel 21, the upper part of the mandrel 21 is in threaded connection with the lower part of the drill collar lower joint 14, the sealing ring 23 is positioned in a groove on the inner wall of the bearing upper joint 24, the bearing 25, the bearing support sleeve 26 and the gasket 27 are sequentially sleeved on the mandrel 21 from top to bottom, and are in threaded connection with the mandrel 21 through the nut 28 so as to fix the bearing upper joint 24 and the bearing sleeve 29 on the mandrel 21, and the lower part of the bearing sleeve 29 is in threaded connection with the inner pipe 5 and the ball valve seat 32 respectively;
the anti-scouring mechanism 3 comprises a ball valve 31 and a ball valve seat 32, the ball valve 31 is positioned in an upper chute of the ball valve seat 32, and the ball valve seat 32 is in threaded connection with the lower part of the bearing sleeve 29;
the upper part of the outer tube 4 is in threaded connection with the lower part of the drill collar lower joint 14, and the lower part is in threaded connection with the reamer 7;
the upper part of the inner tube 5 is in threaded connection with the lower part of the bearing sleeve 29, and the lower part is in threaded connection with the shunt element 6;
the shunt element 6 comprises a thin-wall part 61 and a thick-wall part 62, the upper part of the shunt element 6 is in threaded connection with the lower part of the inner tube 5, and the lower part is in threaded connection with the clamp spring seat 83;
the upper part of the reamer 7 is in threaded connection with the lower part of the outer tube 4, and the lower part is in threaded connection with the drill bit 9;
the core clamping mechanism 8 comprises a clamping spring retainer ring 81, a clamping spring 82 and a clamping spring seat 83, wherein the clamping spring retainer ring 81 and the clamping spring 82 are sequentially positioned in the clamping spring seat 83 from top to bottom, and the clamping spring seat 83 is in threaded connection with the shunt element 6;
the upper part of the drill bit 9 is in threaded connection with the lower part of the reamer 7.
The working principle and the process of the invention are as follows:
referring to fig. 1, 2, 3, 4, 5 and 6, according to the actual type (straightening or correcting) and degree of drilling (well) construction, the corresponding drilling tool structure (including a diverter element, a full-face or core bit), the number of weight blocks placed, and the diverter element with the thickness difference between the thin wall portion and the thick wall portion being suitable are selected.
According to the diameter of the hole (well) and the condition of construction equipment, an adjustable shunt weight bias synergistic drilling tool with a proper size is selected, the external diameters of the drilling tool size specifications applied to geological core drilling and hydrologic well construction are 89mm, 114mm, 131mm and 140mm respectively, and the external diameter of the drilling tool size specification applied to petroleum drilling is5in、6in、/>7in、/>8in、9in、/>10in、11in。
Before the adjustable diversion and unbalance cooperative drilling tool is used, the drilling tool is assembled on the ground, the position of the adjusting nut 22 can be adjusted to adjust the gap between the clamping spring seat 83 and the drill bit 9, meanwhile, the number of the weighting blocks 12 placed in the adjustable unbalance drilling collar 1 and the selection of the diversion elements 6 with different thickness differences between the thin wall part 61 and the thick wall part 62 are determined according to the specific inclination correction requirements of different drilling holes, and the weight difference between one side of the adjustable unbalance drilling collar 1 where the weighting block 12 is placed and one side where the weighting block 12 is not placed, namely the weight difference between the heavy side and the light side is between 0% and 20%;
in the process of lowering the drilling tool, drilling fluid in the hole fills the inner pipe 5 through the clamp spring seat 83, the ball valve 31 is opened, the original gas in the inner pipe 4 and the outer pipe 5 is discharged through the channel 33, after the drilling tool reaches the hole bottom, a slurry pump is started, the drilling fluid enters the adjusting single-acting mechanism 1 and the annular space of the inner pipe 4 and the outer pipe 5 from the inside of the drilling rod through the reducing joint 11 and the flow channel 15, the drilling fluid is divided into two semi-annular flows with large thin-side flow and small thick-side flow through the thin-wall part 61 and the thick-wall part 62 of the flow dividing element 6, the two flows are respectively sprayed out from the two sides (C and C') of the drill bit through the water gap of the drill bit 9, auxiliary rock crushing is carried out, the hole bottom is cleaned, rock fragments are carried, the large-side rock crushing flow and slag discharging effect is good, the small-side effect is poor, therefore, the drilling track can deviate towards the large-side flow because the flow dividing element 6 is connected below the inner pipe 4, the flow dividing element 6 keeps a static state and can not rotate together with the outer pipe 5 due to the effect of the adjusting single-acting mechanism 2, so that the stable non-uniform flow can be provided, and the purpose of correcting the drilling tool can be achieved as long as the position is well adjusted before lowering;
during the drilling process, the mandrel 21, the adjusting nut 22, the sealing ring 23, the bearing upper joint 24, the bearing 25, the bearing support sleeve 26, the gasket 27, the nut 28 and the bearing sleeve 29 form an adjusting single-acting system 2, so that the clearance between the clamping spring seat 83 and the drill bit 9 can be adjusted, the mandrel 21 and above can rotate along with a drill rod, and the bearing upper joint 24 and the following parts remain stationary;
meanwhile, because the weight of the adjustable unbalanced drill collar is larger than the weight of the drill collar required by the bottom of the hole, the neutralization point is positioned on the adjustable unbalanced drill collar 1, under the tangential point of the drilling tool and the hole wall, the transverse component force caused by the weight of the drilling tool, namely the pendulum force (inclination reducing force), can push the drill bit 9 to the lower side of the hole wall, and due to the existence of the adjustable unbalanced drill collar 1, when the drilling tool rotates, the centrifugal force facing the heavy side is generated due to the eccentric weight, and the higher centrifugal force is the higher, when the eccentric side faces the lower side of the hole wall during drilling, the centrifugal force is consistent with the pendulum force direction, larger impact correction force can be generated on the hole wall, so that the inclination angle of the drill is gradually reduced, meanwhile, because of the periodical rotation unbalance, the forced vibration occurs on the lower drill string, the elastic transverse vibration can increase the capability of the drill bit to cut the lower side of the hole wall, in addition, the heavy side of the adjustable unbalanced drill collar 1 is attached to the hole wall when rotating due to the centrifugal force, so that the lower part has the motion characteristic of the drill string and has revolution effect on the rotation of the drill collar, and the inclination preventing the hole from being forever;
when the straight hole needs to be kept straight and prevented from inclining, the split element 6 is dismounted, and the purpose of keeping straight and preventing from inclining can be achieved by the combined action of the pendulum force (inclination reducing force) and the centrifugal force.
Claims (1)
1. An adjustable diverting and unbalanced cooperative drilling tool, which is characterized in that: the drill bit comprises an adjustable unbalanced drill collar (1), an adjustable single-acting mechanism (2), an anti-scouring mechanism (3), an outer tube (4), an inner tube (5), a flow dividing element (6), a reamer (7), a core clamping mechanism (8) and a drill bit (9), wherein the adjustable unbalanced drill collar (1), the adjustable single-acting mechanism (2), the inner tube (5), the flow dividing element (6) and the core clamping mechanism (8) are sequentially connected together in a threaded manner, the anti-scouring mechanism (3) is positioned at the lower part of the adjustable single-acting mechanism (2) and is in threaded connection with the adjustable single-acting mechanism, and the adjustable unbalanced drill collar (1), the outer tube (4), the reamer (7) and the drill bit (9) are sequentially connected together in a threaded manner;
the adjustable unbalanced weight drill collar (1) comprises a reducing joint (11), a weighting block (12), a drill collar shell (13) and a drill collar lower joint (14), wherein the weighting block (12) is inserted into a positioning groove (16) arranged in the drill collar shell (13), the reducing joint (11), the drill collar shell (13) and the drill collar lower joint (14) are sequentially connected in a threaded manner, the upper part of the reducing joint (11) is connected with a drill rod in a threaded manner, and the lower part of the drill collar lower joint (14) is connected with an outer pipe (4) and a mandrel (21) in a threaded manner;
the adjusting single-acting mechanism (2) comprises a mandrel (21), an adjusting nut (22), a sealing ring (23), a bearing upper joint (24), a bearing (25), a bearing support sleeve (26), a gasket (27), a nut (28) and a bearing sleeve (29), wherein the adjusting nut (22) is arranged at the upper part of the mandrel (21), the upper part of the mandrel (21) is in threaded connection with the lower part of the drill collar lower joint (14), the sealing ring (23) is positioned in a groove on the inner wall of the bearing upper joint (24), the bearing (25), the bearing support sleeve (26) and the gasket (27) are sequentially sleeved on the mandrel (21) from top to bottom, then the bearing upper joint (24) is in threaded connection with the bearing sleeve (29), and the lower part of the bearing sleeve (29) is in threaded connection with the inner pipe (5) and the ball valve seat (32);
the anti-scouring mechanism (3) comprises a ball valve (31) and a ball valve seat (32), the ball valve (31) is positioned in an upper chute of the ball valve seat (32), and the ball valve seat (32) is in threaded connection with the lower part of the bearing sleeve (29);
the upper part of the outer tube (4) is in threaded connection with the lower part of the drill collar lower joint (14), and the lower part is in threaded connection with the reamer (7);
the upper part of the inner tube (5) is in threaded connection with the lower part of the bearing sleeve (29), and the lower part is in threaded connection with the shunt element (6);
the shunt element (6) comprises a thin-wall part (61) and a thick-wall part (62), the upper part of the shunt element (6) is in threaded connection with the lower part of the inner tube (5), and the lower part of the shunt element is in threaded connection with the clamp spring seat (83);
the upper part of the reamer (7) is in threaded connection with the lower part of the outer tube (4), and the lower part of the reamer is in threaded connection with the drill bit (9);
the core clamping mechanism (8) comprises a clamping spring retainer ring (81), a clamping spring (82) and a clamping spring seat (83), wherein the clamping spring retainer ring (81) and the clamping spring (82) are sequentially positioned inside the clamping spring seat (83) from top to bottom, and the clamping spring seat (83) is in threaded connection with the shunt element (6);
the upper part of the drill bit (9) is in threaded connection with the lower part of the reamer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810092369.8A CN108071342B (en) | 2018-01-31 | 2018-01-31 | Adjustable reposition of redundant personnel unbalance weight synergism formula drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810092369.8A CN108071342B (en) | 2018-01-31 | 2018-01-31 | Adjustable reposition of redundant personnel unbalance weight synergism formula drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108071342A CN108071342A (en) | 2018-05-25 |
| CN108071342B true CN108071342B (en) | 2023-09-29 |
Family
ID=62156925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810092369.8A Active CN108071342B (en) | 2018-01-31 | 2018-01-31 | Adjustable reposition of redundant personnel unbalance weight synergism formula drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108071342B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944428A (en) * | 2020-07-15 | 2022-01-18 | 中国石油化工股份有限公司 | Quality-improving and speed-increasing drilling tool for oil and gas well |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2282057Y (en) * | 1996-12-17 | 1998-05-20 | 大庆石油管理局钻井二公司 | Eccentric anti-inclining drill combination |
| CN2532227Y (en) * | 2002-03-11 | 2003-01-22 | 郑龙男 | Deviation control tool for gone off hole |
| RU2007144849A (en) * | 2007-12-03 | 2009-06-10 | Государственное образовательное учреждение высшего профессионального образования "Тюменский государственный нефтегазовый университ | DEVICE AND METHOD FOR ROTARY-SPINDLE DRILLING OF WELLS |
| CN202140021U (en) * | 2011-06-28 | 2012-02-08 | 中国石油化工股份有限公司 | Laterality flow-dividing type pneumodynamics automatic vertical drilling tool |
| CN202249823U (en) * | 2011-10-26 | 2012-05-30 | 中国石油集团西部钻探工程有限公司 | Asymmetrical unbalanced centralizing strip drill collar |
| CN102852459A (en) * | 2011-06-28 | 2013-01-02 | 中国石油化工股份有限公司 | Automatic vertical drilling tool on basis of eccentric divided gas dynamics |
| CN104165051A (en) * | 2013-05-17 | 2014-11-26 | 中国石油化工股份有限公司 | Well hole high-low side identification mechanism for automatic vertical drilling tool |
| CN105041250A (en) * | 2015-06-30 | 2015-11-11 | 中国地质大学（武汉） | Rope coring percussive drill tool |
| CN106703695A (en) * | 2017-01-18 | 2017-05-24 | 中国石油大学(华东) | High WOB anti-deviation well straightening drill assembly |
| CN207813498U (en) * | 2018-01-31 | 2018-09-04 | 吉林大学 | Synergistic effect formula drilling tool is laid particular stress in the adjustable shunting of one kind |
-
2018
- 2018-01-31 CN CN201810092369.8A patent/CN108071342B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2282057Y (en) * | 1996-12-17 | 1998-05-20 | 大庆石油管理局钻井二公司 | Eccentric anti-inclining drill combination |
| CN2532227Y (en) * | 2002-03-11 | 2003-01-22 | 郑龙男 | Deviation control tool for gone off hole |
| RU2007144849A (en) * | 2007-12-03 | 2009-06-10 | Государственное образовательное учреждение высшего профессионального образования "Тюменский государственный нефтегазовый университ | DEVICE AND METHOD FOR ROTARY-SPINDLE DRILLING OF WELLS |
| CN202140021U (en) * | 2011-06-28 | 2012-02-08 | 中国石油化工股份有限公司 | Laterality flow-dividing type pneumodynamics automatic vertical drilling tool |
| CN102852459A (en) * | 2011-06-28 | 2013-01-02 | 中国石油化工股份有限公司 | Automatic vertical drilling tool on basis of eccentric divided gas dynamics |
| CN202249823U (en) * | 2011-10-26 | 2012-05-30 | 中国石油集团西部钻探工程有限公司 | Asymmetrical unbalanced centralizing strip drill collar |
| CN104165051A (en) * | 2013-05-17 | 2014-11-26 | 中国石油化工股份有限公司 | Well hole high-low side identification mechanism for automatic vertical drilling tool |
| CN105041250A (en) * | 2015-06-30 | 2015-11-11 | 中国地质大学（武汉） | Rope coring percussive drill tool |
| CN106703695A (en) * | 2017-01-18 | 2017-05-24 | 中国石油大学(华东) | High WOB anti-deviation well straightening drill assembly |
| CN207813498U (en) * | 2018-01-31 | 2018-09-04 | 吉林大学 | Synergistic effect formula drilling tool is laid particular stress in the adjustable shunting of one kind |
Non-Patent Citations (1)
| Title |
|---|
| 气动潜孔锤钻进技术在云南旱区找水工程中的应用;黄晟辉;赵大军;马银龙;于磊;;探矿工程(岩土钻掘工程)(04);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108071342A (en) | 2018-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4618009A (en) | Reaming tool | |
| CA2738548C (en) | Reamer | |
| SE454196B (en) | EARTH AND MOUNTAIN DRILLING DEVICE FOR SIMILAR AND DRILLING | |
| AU623926B2 (en) | Straight hole drilling method and assembly | |
| CN105298421B (en) | Continuous pipe abradant jet speed limit rotary cutting tool | |
| US9637989B2 (en) | Vibration tool | |
| CN103291213A (en) | Water pressure torsional impact device for well drilling | |
| CN108071342B (en) | Adjustable reposition of redundant personnel unbalance weight synergism formula drilling tool | |
| CN112483006B (en) | Rock threaded hole drilling bit of rotary drilling rig, and use method and application thereof | |
| CN106761416B (en) | A kind of reaming drilling machine | |
| CN210460489U (en) | Torsional impact device for well drilling | |
| CN207813498U (en) | Synergistic effect formula drilling tool is laid particular stress in the adjustable shunting of one kind | |
| CN107060649B (en) | A kind of reaming drilling machine | |
| CN213807571U (en) | Rock threaded hole drilling bit of rotary drilling rig | |
| CN101713279A (en) | Deviation prevention and fast drilling technology of eccentric drilling tool assembly | |
| CN110725651B (en) | Shell type package anti-sticking coring drill bit | |
| CN2679342Y (en) | Pallet double-core broaching tool | |
| CN114776226B (en) | PDC drill bit with different inside and outside and manufacturing method of PDC drill bit | |
| CN109931013A (en) | Heavy weight drill pipe with wellbore cleaning action | |
| CN217106866U (en) | High gas is drag reduction centralizer for mine | |
| CN212249896U (en) | Vortex rotation type reaming guide shoe | |
| Wen | A Novel and High-Efficiency Reaming Assembly for Underground Pipelines Pulling Back Laying in Horizontal Directional Drilling | |
| CN110469267B (en) | Device and method for reducing drag and increasing speed through shaft-torsion composite action in drilling process | |
| CN208950495U (en) | Horizontal well is with brill booster | |
| CN207686617U (en) | A kind of working double-wall drill pipe of oil drilling |
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 |