CN110607988A - Drilling speed increasing device for deep well hard formation - Google Patents
Drilling speed increasing device for deep well hard formation Download PDFInfo
- Publication number
- CN110607988A CN110607988A CN201910988414.2A CN201910988414A CN110607988A CN 110607988 A CN110607988 A CN 110607988A CN 201910988414 A CN201910988414 A CN 201910988414A CN 110607988 A CN110607988 A CN 110607988A
- Authority
- CN
- China
- Prior art keywords
- mandrel
- rigid body
- upper joint
- deep well
- turbine
- 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.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/02—Adaptations for drilling wells
Abstract
The invention relates to a deep well hard formation drilling speed-up device, which comprises a drill rod joint system, a high-speed rotating rigid body system and a turbine; the drill rod joint system comprises an upper joint, a lower joint and an outer cylinder; the high-speed rotating rigid body system comprises a mandrel, a control torque rigid body and a fixed clamp, wherein one end of the mandrel is in relative motion with an upper joint through a pair of wear-resistant check rings, the other end of the mandrel is fixedly connected with the turbine, the control torque rigid body is arranged around the periphery of the mandrel, one end of the control torque rigid body is provided with a plurality of grooves, the grooves are meshed with protruding key bodies on the fixed clamp, the fixed clamp is arranged around a mounting clamp and fixed at the necking part of the mandrel, a first bearing is arranged between a shaft seal seat and the fixed clamp, and a second bearing is arranged between the control torque rigid body and the upper joint; drilling fluid flows through the turbine from the upper connector through the mandrel, and the turbine rotates to drive the mandrel and control the torque rigid body to rotate. The invention can improve the drilling efficiency in the drilling process of the deep well hard formation.
Description
Technical Field
The invention belongs to the technical field of petroleum drilling, and particularly relates to a deep well hard formation drilling speed increasing device.
Background
With the development of petroleum drilling technology, deep well and ultra-deep well technology has become the key aspect of petroleum drilling research. The rock texture of deeper stratum is hard, and the drill bit receives dynamic unbalance force great in the drilling process, makes the drill bit produce phenomenons such as beating, whirling, and the drill bit whirling makes cutting tooth direction of motion and cutting face constantly change, and then makes the cutting tooth receive anomalous alternating load and impact load, and this kind of drilling mode is harmful to PDC drill bit effective cutting rock stratum, seriously influences drilling efficiency, reduces the drill bit life-span. The torsional impact and vertical impact accelerating tool widely adopted at present has obvious effect on common hard strata, but cannot provide higher impact frequency, so that the accelerating effect of the tool is weakened along with the increase of the hardness of the strata.
Therefore, based on the problems, the speed increasing device capable of improving the drilling efficiency and prolonging the service life of the drill bit in the drilling process of the deep well hard formation has important practical significance.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the speed-up device which can improve the drilling efficiency and prolong the service life of a drill bit in the process of drilling a well in a deep well and a hard stratum.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the deep well hard formation drilling speed-up device comprises a drill rod joint system, a high-speed rotating rigid body system and a turbine;
the drill rod joint system comprises an upper joint, a lower joint and an outer cylinder, wherein one end of the upper joint is fixedly connected with one end of the outer cylinder, and one end of the lower joint and the other end of the outer cylinder are respectively and fixedly connected with a shaft seal seat;
the high-speed rotating rigid body system comprises a mandrel, a control torque rigid body and a fixed hoop, wherein one end of the mandrel is in relative motion with an upper joint through a pair of wear-resistant check rings, the other end of the mandrel is fixedly connected with the turbine, the control torque rigid body is arranged around the periphery of the mandrel, one end of the control torque rigid body is provided with a plurality of grooves, the grooves are meshed with convex keys on the fixed hoop, the fixed hoop is arranged around a mounting clamp and fixed at the necking part of the mandrel, a first bearing is arranged between a shaft seal seat and the fixed hoop, and a second bearing is arranged between the control torque rigid body and the upper joint;
the mandrel, the control moment rigid body and the turbine are all located inside a cylinder body formed by the drill rod joint system, drilling fluid flows through the turbine from the inside of the upper joint through the mandrel to drive the turbine to rotate, and the turbine rotates to drive the mandrel and the control moment rigid body to rotate.
Furthermore, an oil filling hole is formed in the side wall of the upper joint and connected with an oil way, lubricating oil enters the bearing through the oil way, and an oil filling hole cover is arranged on the oil filling hole.
Furthermore, be equipped with the flowing back passageway on the top connection, the drilling fluid that the flowing back passageway will be oozed by wear-resisting retaining ring discharges, and the flowing back passageway exit is equipped with the single current sealing washer.
Further, a disc spring is arranged between the wear-resistant retainer ring and the mandrel.
Furthermore, the wear-resisting check ring is of an annular convex structure, and the side wall of the wear-resisting check ring is connected with the inner side wall of the upper joint and the inner side wall of the mandrel through sealing rings.
Further, fixed clamp comprises two semicircle ring-shaped clamps, and two semicircle ring-shaped clamps pass through the bolt-up.
Further, shaft sealing rings are arranged between the upper joint and the second bearing and between the shaft sealing seat and the first bearing.
Furthermore, threaded connection is passed through with urceolus one end to top connection one end, the bottom connection one end and the urceolus other end pass through threaded connection with the shaft seal seat respectively, and threaded connection department all is equipped with the sealing washer.
The invention has the advantages and positive effects that:
1. the invention utilizes the fluid kinetic energy of the drilling fluid in the drill rod to drive the turbine to rotate so as to provide power for the high-speed rotating rigid body system, does not need additional power sources, has simple and reliable structure, utilizes the characteristic that the high-speed rotating rigid body can inhibit the external force action which is dozens of times of the self weight and keeps the direction of the rotating shaft unchanged, and inhibits the bit whirl and jump caused by over-hard stratum in the drilling process;
2. the disc spring is arranged between the wear-resistant check ring and the mandrel, axial pressing force is provided for the two wear-resistant check rings, drilling fluid leaking between the two wear-resistant check rings is reduced as much as possible, the upper joint is provided with a liquid drainage channel, a small amount of leaked drilling fluid can be drained out of the device, the tail end of the liquid drainage channel is provided with the single-flow sealing ring, liquid in a shaft cannot enter the device through the liquid drainage channel, the upper joint is provided with the oil injection hole and the oil way, lubricating oil can be injected into the bearing after the assembly is finished, and compared with the assembly with lubricating ester, the lubricating oil is filled more fully;
3. the contact surface of the mandrel and the upper joint is provided with the wear-resistant check ring, so that friction is reduced, the rotation resistance of a high-speed rotating rigid system is further reduced, the reliability of the tool can be improved, and the whole service life of the tool can be prolonged.
Drawings
The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus do not limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.
FIG. 1 is a sectional view of a deep well hard formation drilling speed-increasing device according to an embodiment of the present invention;
FIG. 2 is a top view of an upper joint of the deep well hard formation drilling speed-increasing device provided by the embodiment of the invention;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 4 is a cross-sectional view taken along line C-C of FIG. 2;
FIG. 5 is a schematic structural diagram of a fixing clamp of the deep well hard formation drilling speed-increasing device according to an embodiment of the present invention;
Detailed Description
First, it should be noted that the specific structures, features, advantages, etc. of the present invention will be specifically described below by way of example, but all the descriptions are for illustrative purposes only and should not be construed as limiting the present invention in any way. Furthermore, any single feature described or implicit in any embodiment or any single feature shown or implicit in any drawing may still be combined or subtracted between any of the features (or equivalents thereof) to obtain still further embodiments of the invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.
Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The present invention will be specifically described with reference to fig. 1 to 5.
Example 1
FIG. 1 is a sectional view of a deep well hard formation drilling speed-increasing device according to an embodiment of the present invention; FIG. 2 is a top view of an upper joint of the deep well hard formation drilling speed-increasing device provided by the embodiment of the invention; FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2; FIG. 4 is a cross-sectional view taken along line C-C of FIG. 2; FIG. 5 is a schematic structural diagram of a fixing clamp of the deep well hard formation drilling speed-increasing device according to an embodiment of the present invention; as shown in fig. 1 to 5, the deep well hard formation drilling speed-increasing device provided by the present embodiment includes a drill pipe joint system 1, a high-speed rotating rigid body system 2, and a turbine 3;
the drill rod joint system 1 comprises an upper joint 11, a lower joint 13 and an outer cylinder 12, wherein one end of the upper joint 11 is fixedly connected with one end of the outer cylinder 12, and one end of the lower joint 13 and the other end of the outer cylinder 12 are respectively and fixedly connected with a shaft seal seat 26;
the high-speed rotating rigid body system 2 comprises a mandrel 21, a control torque rigid body 22 and a fixed hoop 23, one end of the mandrel 21 is in relative motion with an upper joint 11 through a pair of wear-resistant check rings 115, the other end of the mandrel 21 is fixedly connected with a turbine 3, the control torque rigid body 22 is arranged around the mandrel 21, one end of the control torque rigid body 22 is provided with a plurality of grooves (not shown in the figure), the grooves are engaged with protruding keys 232 on the fixed hoop 23, the fixed hoop 23 is fixed at the necking position of the mandrel 21 around an installation clamp, a first bearing 241 is arranged between a shaft seal seat 26 and the fixed hoop 23, the shaft seal seat 26 is fixed with the first bearing 241 and provides support for the first bearing 241, the mandrel 21 is fixedly connected with the inner ring of the first bearing 241, and a second bearing 242 is arranged between the control torque rigid body 22 and the upper joint 11, the mandrel 21 is fixedly connected with the inner ring of the second bearing 242;
the mandrel 21, the control moment rigid body 22 and the turbine 3 are all located inside a cylinder formed by the drill rod joint system 1, drilling fluid flows through the turbine 3 through the mandrel 21 from the upper joint 11 to drive the turbine 3 to rotate, and the turbine 3 rotates to drive the mandrel 21 and the control moment rigid body 22 to rotate.
Further, it is also considered in the present invention that an oil hole 112 is provided on a sidewall of the upper joint 11, the oil hole 112 is connected to an oil path 113, the lubricating oil enters the bearing through the oil path 113, and an oil hole cover 116 is provided on the oil hole 112; in addition, a drainage channel 111 is arranged on the upper joint 11, the drainage channel 111 discharges the drilling fluid seeped out by the wear-resistant check ring 115, and a single-flow sealing ring 114 is arranged at the outlet of the drainage channel 111.
Still further, it is also contemplated by the present invention that a disc spring 27 is disposed between the anti-friction retainer 115 and the mandrel 21.
It should be noted that the wear-resistant check ring 115 is in an annular "convex" structure, and the side wall of the wear-resistant check ring 115 is connected to the inner side wall of the upper joint 11 and the inner side wall of the mandrel 21 through a sealing ring a.
It should be pointed out that fixed clamp 23 comprises two semicircle ring-shaped clamps, and two semicircle ring-shaped clamps pass through the bolt-up, and is concrete, as shown in fig. 5, fixed clamp 23 comprises two the same semicircle rings, and relative chucking is in the necking down department of dabber 21, is locked from left and right sides screw 231 respectively by two bolts, and a plurality of protrusion key bodies 232 interlock mutually with control moment rigid body 22 bottom recess, make dabber 21, fixed clamp 23, control moment rigid body 22 rotate in step.
Further, in the present invention, it is considered that shaft seal rings 25 are respectively disposed between the upper joint 11 and the second bearing 242 and between the shaft seal holder 26 and the first bearing 241, and are used for sealing the bearing and the control torque rigid body 22 during operation, thereby preventing drilling fluid from entering the bearing system, reducing the service life of the bearing, and affecting the rotation speed of the control torque rigid body.
It should be noted that one end of the upper joint 11 is connected with one end of the outer cylinder 12 through a thread, one end of the lower joint 13 and the other end of the outer cylinder 12 are respectively connected with the shaft seal seat 26 through a thread, and the thread joints are provided with seal rings a.
It should be noted that the fixing and connecting manner in the present invention adopts conventional means such as bolts, rivets, welding, etc. which are mature in the prior art, and is not described herein again, but due to the above reasons, the repeated reproduction of those skilled in the art will not be affected.
Claims (8)
1. Deep well hard formation well drilling accelerating device which characterized in that: the high-speed rotating rigid body system comprises a drill rod joint system, a high-speed rotating rigid body system and a turbine;
the drill rod joint system comprises an upper joint, a lower joint and an outer cylinder, wherein one end of the upper joint is fixedly connected with one end of the outer cylinder, and one end of the lower joint and the other end of the outer cylinder are respectively and fixedly connected with a shaft seal seat;
the high-speed rotating rigid body system comprises a mandrel, a control torque rigid body and a fixed hoop, wherein one end of the mandrel is in relative motion with an upper joint through a pair of wear-resistant check rings, the other end of the mandrel is fixedly connected with the turbine, the control torque rigid body is arranged around the periphery of the mandrel, one end of the control torque rigid body is provided with a plurality of grooves, the grooves are meshed with convex keys on the fixed hoop, the fixed hoop is arranged around a mounting clamp and fixed at the necking part of the mandrel, a first bearing is arranged between a shaft seal seat and the fixed hoop, and a second bearing is arranged between the control torque rigid body and the upper joint;
the mandrel, the control moment rigid body and the turbine are all located inside a cylinder body formed by the drill rod joint system, drilling fluid flows through the turbine from the inside of the upper joint through the mandrel to drive the turbine to rotate, and the turbine rotates to drive the mandrel and the control moment rigid body to rotate.
2. The deep well hard formation drilling speed-increasing device according to claim 1, characterized in that: and an oil filling hole is formed in the side wall of the upper joint and is connected with an oil way, lubricating oil enters the bearing through the oil way, and an oil filling hole cover is arranged on the oil filling hole.
3. The deep well hard formation drilling acceleration device according to claim 1 or 2, characterized in that: and a liquid drainage channel is arranged on the upper joint, the drilling fluid seeped out by the wear-resistant check ring is discharged from the liquid drainage channel, and a single-flow sealing ring is arranged at the outlet of the liquid drainage channel.
4. The deep well hard formation drilling speed-increasing device according to claim 1, characterized in that: and a disc spring is arranged between the wear-resistant retainer ring and the mandrel.
5. The deep well hard formation drilling speed-increasing device according to claim 1, characterized in that: the wear-resisting retaining ring is of an annular convex structure, and the side wall of the wear-resisting retaining ring is connected with the inner side wall of the upper joint and the inner side wall of the mandrel through sealing rings respectively.
6. The deep well hard formation drilling speed-increasing device according to claim 1, characterized in that: the fixed clamp is composed of two semicircular ring-shaped clamps, and the two semicircular ring-shaped clamps are fastened through bolts.
7. The deep well hard formation drilling speed-increasing device according to claim 1, characterized in that: and shaft sealing rings are arranged between the upper joint and the second bearing and between the shaft sealing seat and the first bearing.
8. The deep well hard formation drilling speed-increasing device according to claim 1, characterized in that: the upper joint one end and urceolus one end pass through threaded connection, lower joint one end and urceolus other end pass through threaded connection with the shaft seal seat respectively, and threaded connection department all is equipped with the sealing washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910988414.2A CN110607988B (en) | 2019-10-17 | 2019-10-17 | Drilling speed increasing device for deep well hard formation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910988414.2A CN110607988B (en) | 2019-10-17 | 2019-10-17 | Drilling speed increasing device for deep well hard formation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110607988A true CN110607988A (en) | 2019-12-24 |
| CN110607988B CN110607988B (en) | 2021-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910988414.2A Active CN110607988B (en) | 2019-10-17 | 2019-10-17 | Drilling speed increasing device for deep well hard formation |
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| Country | Link |
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| CN (1) | CN110607988B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4308927A (en) * | 1980-04-01 | 1982-01-05 | Engineering Enterprises, Inc. | Well drilling tool |
| WO1998020228A1 (en) * | 1996-11-04 | 1998-05-14 | Tiebo Tiefbohrservice Gmbh & Co. Kg | Turbodrill with reduction gear |
| US20110100715A1 (en) * | 2009-10-29 | 2011-05-05 | Trican Well Service, Ltd. | Center discharge gas turbodrill |
| CN102913165A (en) * | 2012-11-06 | 2013-02-06 | 北京六合伟业科技股份有限公司 | Well-drilling downhole turbine-drive while-drilling vibrator |
| CN204386510U (en) * | 2014-12-22 | 2015-06-10 | 四川省贝特石油技术有限公司 | The constant device of a kind of new and effective rotating speed the pressure of the drill |
| CN105201403A (en) * | 2015-09-06 | 2015-12-30 | 四川省贝特石油技术有限公司 | Autonomous and efficient torque-constant and pressure-constant rock breaking tool |
| CN108360974A (en) * | 2018-04-12 | 2018-08-03 | 中国石油大学(北京) | Composite impact tool |
| CN109469445A (en) * | 2019-01-17 | 2019-03-15 | 北京工业大学 | Two-way resonance drilling speed tool |
-
2019
- 2019-10-17 CN CN201910988414.2A patent/CN110607988B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4308927A (en) * | 1980-04-01 | 1982-01-05 | Engineering Enterprises, Inc. | Well drilling tool |
| WO1998020228A1 (en) * | 1996-11-04 | 1998-05-14 | Tiebo Tiefbohrservice Gmbh & Co. Kg | Turbodrill with reduction gear |
| US20110100715A1 (en) * | 2009-10-29 | 2011-05-05 | Trican Well Service, Ltd. | Center discharge gas turbodrill |
| CN102913165A (en) * | 2012-11-06 | 2013-02-06 | 北京六合伟业科技股份有限公司 | Well-drilling downhole turbine-drive while-drilling vibrator |
| CN204386510U (en) * | 2014-12-22 | 2015-06-10 | 四川省贝特石油技术有限公司 | The constant device of a kind of new and effective rotating speed the pressure of the drill |
| CN105201403A (en) * | 2015-09-06 | 2015-12-30 | 四川省贝特石油技术有限公司 | Autonomous and efficient torque-constant and pressure-constant rock breaking tool |
| CN108360974A (en) * | 2018-04-12 | 2018-08-03 | 中国石油大学(北京) | Composite impact tool |
| CN109469445A (en) * | 2019-01-17 | 2019-03-15 | 北京工业大学 | Two-way resonance drilling speed tool |
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| CN110607988B (en) | 2021-01-12 |
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Effective date of registration: 20201209 Address after: 300457 Tianjin Binhai New Area Development Zone Second Avenue 83, China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd. Applicant after: CNPC Bohai Drilling Engineering Co.,Ltd. Applicant after: CHINA NATIONAL PETROLEUM Corp. Address before: 300457 Tianjin Binhai New Area Development Zone Second Avenue 83, China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd. Applicant before: CNPC Bohai Drilling Engineering Co.,Ltd. |
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