CN211598607U - Coiled tubing drilling, grinding and drifting device with screw - Google Patents
Coiled tubing drilling, grinding and drifting device with screw Download PDFInfo
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- CN211598607U CN211598607U CN201922146094.4U CN201922146094U CN211598607U CN 211598607 U CN211598607 U CN 211598607U CN 201922146094 U CN201922146094 U CN 201922146094U CN 211598607 U CN211598607 U CN 211598607U
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Abstract
The utility model relates to a coiled tubing takes screw rod to bore and bores and grind drifting device belongs to oil gas field and repaiies well completion technical field, the utility model provides a pair of coiled tubing takes screw rod to bore and bores and grind drifting device, a serial communication port, include: the continuous oil pipe connector, the check valve, the hydraulic safety joint, the screw motor and the tricone bit are sequentially connected from front to back. The utility model discloses can fast satisfy the pit shaft complicacy that well drilling mud cemented precipitation caused, improve the production ageing, open up new mode for horizontal well coiled tubing leads to the well-flushing operation.
Description
Technical Field
The utility model belongs to the technical field of the well completion is repaiied to the oil gas field, is applied to coiled tubing and bores and grinds drifting construction operation, concretely relates to coiled tubing takes screw rod to bore and bores and grinds drifting device.
Background
Oil clothing companies at home and abroad research and develop that a coiled tubing drilling, drilling and grinding drifting process pipe column is adopted to perform drifting on a drilled well.
In the process of implementing the embodiments of the present invention, the inventor finds that at least the following defects exist in the background art:
the drilling and grinding tool has the advantages that the completion time of the slurry is long, the slurry is cemented and precipitated, and the drilling and grinding tool is easy to block in the slurry during drilling and grinding, so that the drilling and grinding efficiency is extremely low, and the risk of damaging a casing exists.
SUMMERY OF THE UTILITY MODEL
The utility model provides a coiled tubing takes screw rod to bore and bores and grind drifting device, aim at solves above-mentioned problem, solves longer to mud well completion time, and mud cemented precipitation bores when grinding and grinds the instrument and easily blocks up in mud, causes to bore to grind efficiency extremely low to the problem of harm sheathed tube risk exists.
In order to achieve the above object, the utility model adopts the following technical scheme:
a coiled tubing drilling and grinding drifting device with a screw comprises: the continuous oil pipe connector, the check valve, the hydraulic safety joint, the screw motor and the tricone bit are sequentially connected from front to back.
The continuous oil pipe connector, the check valve, the hydraulic safety joint, the screw motor and the tricone bit are sequentially in threaded connection from front to back.
The check valve is a bivalve type one-way valve.
The screw motor is in transmission connection with the tricone bit.
Cutting teeth for breaking rock are arranged on the outer side of the tricone bit.
The check valve is a butterfly type buffering check valve.
The hydraulic safety joint is made of hard alloy materials.
The beneficial effects of the utility model are that, the guargum base fluid of adoption reduces the liquid and rubs and hinder, improves the construction discharge capacity, strengthen carrying capacity, finally effectively wash out well mud, can successfully lead to the artificial shaft bottom, provide a qualified pit shaft environment for later stage construction, the sheathed tube risk of damage has also been got rid of, when not influencing normal construction operation, can relieve the pit shaft complicacy that well mud cemented precipitation caused fast, the production ageing is improved, the well washing operation has opened up new mode for horizontal well continuous oil pipe leads to.
Drawings
Fig. 1 is the utility model discloses in a coiled tubing area screw rod bores the overall structure schematic diagram that bores and grinds drifting device.
Labeled as: 1. a coiled tubing connector; 2. a double-flap check valve; 3. a hydraulic safety joint; 4. a screw motor; 5. a tricone bit.
Detailed Description
The coiled tubing drilling and milling drifting scheme provided by the embodiment of the invention will be described in detail through several specific embodiments.
Example 1
A coiled tubing drill-in and mill-out method for drifting a well with a screw, the method comprising:
and (3) circulating the guanidine gum base fluid in the well during drilling and grinding drifting.
In the embodiment, the guanidine gum base solution is generally used in the oilfield fracturing technology, and the guanidine gum plays a role in tackifying.
Example 2
Further, the utility model relates to a coiled tubing takes screw rod to bore and bores another embodiment of mill drifting method, before well-internal circulation guanidine gum base fluid when boring mill drifting, still include:
and preparing the guanidine gum base solution according to the concentration of 0.2-0.25%.
In the embodiment, in the guanidine gum base liquid, the concentration is controlled to be between 0.2% and 0.25%, namely, the purposes of improving the construction discharge capacity by liquid friction resistance, enhancing the carrying capacity and effectively washing out mud in a well are achieved, and meanwhile, the concentration has the minimum influence on various operations in normal construction in consideration of the acting force of liquid viscosity.
Example 3
Furthermore, in another embodiment of the coiled tubing drilling and grinding drifting method of the present invention, a coiled tubing drilling and grinding drifting tubular column with a tricone bit at the end is used for drifting in the well;
and (5) dredging the well to the bottom of the artificial well.
In the embodiment, the flat-bottom shoe grinding drilling tool is adopted at the end part of the coiled tubing drilling and grinding drifting tubular column with the screw in the existing construction, and aiming at the problems that the mud completion time is long, the mud is cemented and precipitated, and the flat-bottom shoe grinding is easy to block in the mud, so that the drilling and grinding efficiency is extremely low, the tricone bit is adopted at the end part of the coiled tubing drilling and grinding drifting tubular column with the screw, so that the bit can be guaranteed to have good adaptability in the cemented and precipitated mud, and the smoothness of a water hole of the bit can also be effectively guaranteed.
The tricone bit can effectively break shaft mud and improve the well dredging efficiency
Example 4
Further, the utility model relates to a coiled tubing takes screw drill to bore and grinds another embodiment of drifting method, the coiled tubing that adopts the tip to be tricone bit takes screw drill to bore and grinds the drifting tubular column and specifically does to drift in the well:
and (3) putting the coiled tubing drilling and grinding drifting tubular column with the screw drill and the grinding of the tricone bit at the end part to a position where the coiled tubing drilling and grinding drifting tubular column meets a resistance, and adding the bit pressure of 2KN for drilling and grinding.
Above-mentioned embodiment adopts guanidine gum base liquid to open the pump circulation, reduces the liquid and rubs and hinder, improves the construction discharge capacity, strengthens carrying capacity, owing to adopted guanidine gum base liquid, consequently adds weight on bit 2KN and drills and grinds and can accelerate the construction progress and do not influence construction quality.
Example 5
Further, the utility model relates to a coiled tubing takes screw rod to bore and bores another embodiment of mill drifting method increases the circulation discharge capacity of guanidine gum base fluid during the pressure on bit 2KN carries out the drilling and grinding.
The increase of the circulating discharge capacity can effectively carry impurities and reduce the abrasion resistance between the continuous oil pipe and the casing wall.
Example 6
Further, the utility model relates to a coiled tubing area screw rod bores another embodiment of boring and milling drifting method, the guargum base fluid of concentration that circulates in the well when boring and milling the drifting is 0.2% concentration.
In the above embodiment, the concentration of the guar gum base fluid is 0.2%, which is a preferred embodiment, and it is cost effective and can effectively wash out mud in the well.
Example 7
Please refer to fig. 1, which shows an overall structure diagram of a coiled tubing drill-mill drifting tubular column with a screw according to the present invention, the coiled tubing drill-mill drifting tubular column with a screw comprises: the continuous oil pipe connector 1, the check valve, the hydraulic safety joint 3, the screw motor 4 and the tricone bit 5 are sequentially connected in the front and back direction.
In the above embodiment, in the prior art, the flat-bottom mill shoe is usually adopted to dredge a well, and aiming at the problems that the mud completion time is long, the mud is cemented and precipitated, the flat-bottom mill shoe is easy to block in the mud, and the drilling and grinding efficiency is extremely low, the tricone bit is adopted at the end part of the drilling and grinding pipe column of the coiled tubing with the screw, so that the drill bit can be guaranteed to have very good adaptability in the cemented and precipitated mud, and the smoothness of a water hole of the drill bit can also be effectively guaranteed.
The tricone bit 5 can ensure that the bit has good adaptability in slurry of cemented sediment, can effectively ensure the smoothness of a water hole of the bit, reduces the risk of damaging a casing pipe, and does not influence the drilling and grinding drifting construction operation of the continuous oil pipe screw-in drilling.
Example 8
Further, the utility model relates to a coiled tubing takes screw drill to bore another embodiment of mill drifting tubular column, coiled tubing connector 1, check valve, hydraulic pressure safety joint 3, screw motor 4 and tricone bit 5, and threaded connection is in proper order around coiled tubing connector 1, check valve, hydraulic pressure safety joint 3, screw motor 4 and the tricone bit 5.
In the above embodiment, in the field construction, the coiled tubing connector 1, the check valve, the hydraulic safety joint 3, the screw motor 4 and the tricone bit 5 are connected by the screw thread, so that the field construction can be facilitated, the difficulty of the whole drilling tool in transportation is reduced, and the transportation of the drilling tool is more flexible.
Example 9
Further, the utility model relates to a coiled tubing takes screw drill to bore another embodiment of mill drifting tubular column, the check valve is bivalve formula check valve 2.
In the above embodiment, the check valve adopts the double-flap check valve 2, so that clean liquid can be ensured to enter the screw motor, and slurry generated by drilling and grinding is prevented from entering the screw motor to block the rotor.
Further, the utility model relates to a coiled tubing takes screw drill to bore another embodiment of mill drifting tubular column, screw motor 4 is connected with tricone bit 5 transmission.
In the above embodiments, the progressive cavity motor 4 is used to power the tri-cone drill bit 5.
Further, the utility model relates to a coiled tubing takes screw drill to bore and grinds another embodiment of drifting tubular column, the 5 outsides of tricone bit dispose the cutting teeth that are used for broken rock usefulness.
In the above embodiment, the tricone bit 5 is provided with the cutting teeth for cutting the crushed rock, which can accelerate the construction efficiency.
Further, the utility model relates to a coiled tubing takes screw drill to bore another embodiment of mill drifting tubular column, the check valve is butterfly buffer check valve.
In the above embodiments, the check valve is a butterfly cushion check valve that opens automatically by virtue of the flow of the medium itself.
Further, the hydraulic safety joint 3 is made of hard alloy materials.
In the above embodiment, the hydraulic safety joint 3 is made of hard alloy material, which can enhance the wear resistance and the use efficiency.
Example 10
The application of coiled tubing drilling and grinding drifting with a screw drill comprises the following steps: the coiled tubing screw-on drill-and-mill drifting string of any one of embodiments 7 to 8 is applied to the coiled tubing screw-on drill-and-mill drifting method of any one of embodiments 1 to 6.
In the embodiment, the coiled tubing drill with the screw drill and the mill drifting pipe column are adopted in the coiled tubing drill with the screw drill and the mill drifting method, so that the drill bit can be guaranteed to have good adaptability in slurry of cemented sediment, and smoothness of a water hole of the drill bit can be effectively guaranteed. Meanwhile, the guanidine gum base fluid with the concentration is used for reducing the liquid abrasion resistance, improving the construction discharge capacity, enhancing the carrying capacity, finally effectively washing out the slurry in the well, and successfully leading the slurry to the bottom of the artificial well, providing a qualified shaft environment for later construction, eliminating the risk of damaging a sleeve and meeting the technical requirements of the drilling, abrasion and well dredging process of the screw drill with the continuous oil pipe.
Technical solutions between various embodiments may be combined with each other, but must be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Claims (6)
1. The utility model provides a coiled tubing takes screw drill to bore and grinds drifting device which characterized in that includes: the continuous oil pipe connector (1), the check valve, the hydraulic safety joint (3), the screw motor (4) and the tricone bit (5) are sequentially connected from front to back.
2. The coiled tubing drill and mill drift device of claim 1, wherein the check valve is a two-piece check valve (2).
3. The coiled tubing screw-in drill-and-drill mill drift device of claim 1, characterized in that the screw motor (4) is in driving connection with the tricone bit (5).
4. The coiled tubing screw-equipped drill-and-mill drift device of claim 1, characterized in that the tricone drill bit (5) is provided with cutting teeth on its outer side for breaking rock.
5. The coiled tubing drilling, grinding and drifting device of claim 1 wherein the check valve is a butterfly cushion check valve.
6. The coiled tubing drill-and-drill well-cleaning device with screw of claim 1, characterized in that the hydraulic safety joint (3) is made of hard alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922146094.4U CN211598607U (en) | 2019-12-04 | 2019-12-04 | Coiled tubing drilling, grinding and drifting device with screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922146094.4U CN211598607U (en) | 2019-12-04 | 2019-12-04 | Coiled tubing drilling, grinding and drifting device with screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211598607U true CN211598607U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922146094.4U Active CN211598607U (en) | 2019-12-04 | 2019-12-04 | Coiled tubing drilling, grinding and drifting device with screw |
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| CN (1) | CN211598607U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101897A (en) * | 2019-12-04 | 2020-05-05 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Coiled tubing drilling, drilling and grinding well dredging method and device with screw and application |
| CN115614000B (en) * | 2022-12-21 | 2023-03-10 | 中国石油集团川庆钻探工程有限公司 | Continuous oil pipe cleaning and scraping integrated tool and cleaning and scraping process |
-
2019
- 2019-12-04 CN CN201922146094.4U patent/CN211598607U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101897A (en) * | 2019-12-04 | 2020-05-05 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Coiled tubing drilling, drilling and grinding well dredging method and device with screw and application |
| CN115614000B (en) * | 2022-12-21 | 2023-03-10 | 中国石油集团川庆钻探工程有限公司 | Continuous oil pipe cleaning and scraping integrated tool and cleaning and scraping process |
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Effective date of registration: 20201027 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: 710018 Shaanxi province Xi'an Weiyang Changqing Changqing prosperous Park District Building Room 1203 Patentee before: CHANGQING DOWNHOLE TECHNOLOGY OPERATION COMPANY OF CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. Patentee before: CHINA NATIONAL PETROLEUM Corp. Patentee before: CNPC Chuanqing Drilling Engineering Co.,Ltd. |