CN104863503A - Anti-jamming drilling device based on double-wall drilling rod and downhole power drilling tool - Google Patents
Anti-jamming drilling device based on double-wall drilling rod and downhole power drilling tool Download PDFInfo
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- CN104863503A CN104863503A CN201510226550.XA CN201510226550A CN104863503A CN 104863503 A CN104863503 A CN 104863503A CN 201510226550 A CN201510226550 A CN 201510226550A CN 104863503 A CN104863503 A CN 104863503A
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Abstract
The invention discloses an anti-jamming drilling device based on a double-wall drilling rod and a downhole power drilling tool, which comprises a plurality of double-wall drilling rods that are sequentially arranged and concatenated; a rotary spraying sand-removing device is connected between each pair of the double-wall drilling rods; the bottom end of the last double-wall drilling rod is connected to a shifting joint; and the lower end of the shifting joint is connected to the downhole power drilling tool. According to the invention, the rotary spraying sand-removing device and the shifting joint of a single double-wall drilling rod are applied on a drilling column, so the flow velocity of the drill well liquid in an outer ring hollow flow channel between and outer pipe of the double-wall drilling rod and the well wall can be increased and the deposite of solid particles can be reduced; the filter cake deposited on the well wall is decreased and reduced, thus the accident of sticking and jamming is prevented from occurring.
Description
Technical field
The invention relates to a kind of preventing sticking drilling rig, particularly relate to a kind of preventing sticking drilling rig based on double-wall drill pipe and mud motor.
Background technology
Can bore water-sensitive strata such as meeting unconsolidated formation, clay, mud stone, shale in drilling process, due to problems such as expansion, undergauge easily appear in rock stratum chance water electrode and peel off in this kind of stratum, thus the safety of drilling tool in well in serious threat.In the drilling process of this kind of stratum mud use careless slightly or prominent chances has a power failure, mud does not circulate, be easy to cause sticky the card.So when creeping in this stratum, modal problem is exactly sticky suction lock of tool drilling.
Research draws, and the borehole wall has the existence of filter cake to be cause the sticky immanent cause inhaling bit freezing.Filter cake be formed with three kinds of reasons: first be absorption, the solid phase particles in drilling fluid is adsorbed on rock surface; Second is deposition, and drilling fluid is in flow process, and the flow velocity of the close borehole wall is no better than zero, and the solid phase particles in drilling fluid is just deposited on the borehole wall; 3rd is leak-off effect, and it to accelerate in drilling fluid solid phase particles in the deposition on permeable formation surface; Therefore, first sticky preventive action of inhaling bit freezing are wanted can avoid and reduce the filter cake be deposited on the borehole wall.
In prior art, the measure of pre-antiseized suction bit freezing mainly concentrates on the use of rational manual operation and drilling fluid, such as: carry out solid controlling work and use neutral drilling fluid; Prior art still can not from the generation of the pre-antiseized suction lock of tool drilling of boring method and drilling rig aspect; Further, the selection requirements of preventive action of the prior art to the operation of driller and drilling fluid is very harsh, the careless slightly generation just very easily causing sticky suction lock of tool drilling; The lighter, hales or overlaps milling and can be disposed in 3 ~ 5 days; Severe one, then take 10 ~ 30 days and be disposed, and even causes drilling tool and oil well to scrap, thus cause huge economic loss.
Thus, the present inventor relies on and is engaged in experience and the practice of relevant industries for many years, proposes a kind of preventing sticking drilling rig based on double-wall drill pipe and mud motor, to overcome the defect of prior art.
Summary of the invention
The object of the present invention is to provide a kind of preventing sticking drilling rig based on double-wall drill pipe and mud motor, when to manual operation and drilling fluid selection requirements not harsh, effectively can reduce and reduce filter cake and be deposited on the borehole wall, and then pre-antiseized suction lock of tool drilling occurs.
The object of the present invention is achieved like this, a kind of preventing sticking drilling rig based on double-wall drill pipe and mud motor, described preventing sticking drilling rig includes the double-wall drill pipe of many order arrangement serial connections, a rotary-jet desanding device is connected with between each double-wall drill pipe, the bottom of the last root double-wall drill pipe connects a crossover sub, this crossover sub lower end connecting downhole power drilling tool.
In a better embodiment of the present invention, the shell body that described rotary-jet desanding device is arranged at outside central tube by central tube and concentric spacing is formed; Described central tube upper/lower terminal is fixedly connected with pipe in the double-wall drill pipe above and below it respectively, the upper/lower terminal of described shell body respectively with a top connection and once joint sealing be rotationally connected, the outer seal of tube grafting of described top connection and the double-wall drill pipe above it, the outer seal of tube grafting of described lower contact and the double-wall drill pipe below it; Described central tube outside wall surface order fixed cover is provided with multiple stator, and the position fixed cover that described shell body internal face is relative with described multiple stator is provided with multiple rotor; Described shell body is evenly equipped with multiple jet orifice running through its shell wall along its circumference.
In a better embodiment of the present invention, described central tube to be fixedly connected with lower center tube screw thread by the upper center tube coaxially arranged and to form, described lower center tube epimere outer wall is provided with the first ladder positioning section that external diameter is less than upper center tube external diameter, and described multiple stator order fixed cover is located at the first ladder positioning section.
In a better embodiment of the present invention, described shell body to be fixedly connected with lower house screw thread by the upper shell coaxially arranged and to form; Described lower house epimere inwall is provided with the second ladder positioning section that internal diameter is greater than upper shell internal diameter, and this second ladder positioning section and described first ladder positioning section are oppositely arranged, and described multiple rotor order fixed cover is located at this second ladder positioning section.
In a better embodiment of the present invention, the upper and lower end of described multiple stator is provided with one first spacer with one heart; The upper and lower end of described multiple rotor is provided with one second spacer with one heart.
In a better embodiment of the present invention, between described upper enclosure inner wall and top connection outer wall, be provided with a TC bearing, form described shell body upper end thus and be connected with the sealed rotational of top connection; Be provided with the 2nd TC bearing and the 3rd TC bearing between described lower house inwall and lower contact outer wall, between the 2nd TC bearing and the 3rd TC bearing, be also provided with multiple ball bearing, form described shell body lower end thus and be connected with the sealed rotational of lower contact.
In a better embodiment of the present invention, the quiet external threading of TC of a TC bearing is fixedly connected on top connection outer wall, and the TC of a TC bearing moves external threading and is fixedly connected on upper enclosure inner wall; The quiet external threading of TC of the 2nd TC bearing and the 3rd TC bearing is fixedly connected on lower contact outer wall, and the TC of the 2nd TC bearing and the 3rd TC bearing moves external threading and is fixedly connected on lower house inwall; The upper and lower end of described multiple ball bearing is provided with one the 3rd spacer with one heart.
In a better embodiment of the present invention, described jet orifice arranges four; Each jet orifice tilts upward setting from inside to outside from shell body.
In a better embodiment of the present invention, described crossover sub is one-body molded by the single joint of the concentric twin adapter in top and bottom, described concentric twin adapter comprises the interior pipe of joint and the joint outer tube of bottom end seal connection, joint outer tube is evenly equipped with the return port of multiple through tube wall along its circumference; The single joint in described bottom be provided with upwards with the central duct of pipe conducting in joint; Described concentric twin adapter is connected with the double-wall drill pipe above it, the outer seal of tube grafting of described joint outer tube and the double-wall drill pipe above it, and the interior pipe of the double-wall drill pipe in described joint above Guan Yuqi is fixedly connected with; Described single joint is connected with the mud motor below it.
In a better embodiment of the present invention, described return port arranges four.
From the above mentioned, invent the preventing sticking drilling rig based on double-wall drill pipe and mud motor, when to manual operation and drilling fluid selection requirements not harsh, effectively can reduce and reduce filter cake being deposited on the borehole wall, and then pre-antiseized suction lock of tool drilling occurs.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein:
Fig. 1: for the present invention is based on the structural representation of the preventing sticking drilling rig of double-wall drill pipe and mud motor;
Fig. 2: be the structural representation of rotary-jet desanding device in the present invention;
Fig. 3: be C place partial enlargement structural representation in Fig. 1;
Fig. 4: be A-A place cross-sectional view in Fig. 1;
Fig. 5: be the structural representation of crossover sub in the present invention;
Fig. 6: be B-B place cross-sectional view in Fig. 5.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and the specific embodiment of the present invention is described.
As shown in Figure 1, the present invention proposes a kind of preventing sticking drilling rig 100 based on double-wall drill pipe and mud motor, described preventing sticking drilling rig 100 includes the double-wall drill pipe 1 of many order arrangement serial connections, a rotary-jet desanding device 2 is connected with between each double-wall drill pipe 1, the bottom of the last root double-wall drill pipe 1 connects a crossover sub 3, this crossover sub 3 lower end connecting downhole power drilling tool 4.
As shown in Figure 2, Figure 3 and Figure 4, the shell body 22 that described rotary-jet desanding device 2 is arranged at outside central tube 21 by central tube 21 and concentric spacing is formed; Described central tube 21 upper/lower terminal is fixedly connected with pipe 11 in the double-wall drill pipe 1 above and below it respectively, the upper/lower terminal of described shell body 22 is connected with a top connection 23 and lower contact 24 sealed rotational respectively, the outer tube 12 of described top connection 23 and the double-wall drill pipe 1 above it seals grafting, and the outer tube 12 of described lower contact 24 and the double-wall drill pipe 1 below it seals grafting; Described central tube 21 outside wall surface order fixed cover is provided with multiple stator 25, and the position fixed cover that described shell body 22 internal face is relative with described multiple stator 25 is provided with multiple rotor 26; Described shell body 22 is evenly equipped with multiple jet orifice 2211 running through its shell wall along its circumference.In the present embodiment, described jet orifice 2211 arranges four; Each jet orifice 2211 tilts upward setting (as shown in Figure 2) from inside to outside from shell body 22.
Further, as shown in Figure 2, Figure 4 shows, in the present embodiment, described central tube 21 to be fixedly connected with lower center tube 212 screw thread by the upper center tube 211 coaxially arranged and to form, described lower center tube 212 epimere outer wall is provided with the first ladder positioning section 2121 that external diameter is less than upper center tube external diameter, and described multiple stator 25 order fixed cover is located on the first ladder positioning section 2121.Described shell body 22 to be fixedly connected with lower house 222 screw thread by the upper shell 221 coaxially arranged and to form; Described lower house 222 epimere inwall is provided with the second ladder positioning section 2221 that internal diameter is greater than upper shell internal diameter, this the second ladder positioning section 2221 is oppositely arranged with described first ladder positioning section 2121, and described multiple rotor 26 order fixed cover is located on this second ladder positioning section 2221.The upper and lower end of described multiple stator 25 is provided with one first spacer 251 with one heart, and stator 25 circumference is fixed on lower center tube 212 by key 252; The upper and lower end of described multiple rotor 26 is provided with one second spacer 261 with one heart, and rotor 26 circumference is fixed on lower house 222 by key 262.
In the present embodiment, as shown in Figure 5, Figure 6, single joint 32 is one-body molded forms by the concentric twin adapter in top 31 and bottom for described crossover sub 3, described concentric twin adapter 31 comprise bottom end seal connect joint in pipe 311 and joint outer tube 312, joint outer tube 312 is evenly equipped with the return port 3121 of multiple through tube wall along its circumference; In the present embodiment, described return port 3121 arranges four; The single joint 32 in described bottom be provided with upwards with the central duct 321 of pipe in joint 311 conducting; Described concentric twin adapter 31 is connected with the double-wall drill pipe 1 above it, concrete, and the outer tube 12 of described joint outer tube 312 and the double-wall drill pipe 1 above it seals grafting, and in described joint, pipe 311 is fixedly connected with interior pipe 11 screw thread of the double-wall drill pipe 1 above it; Described single joint 32 is connected with the mud motor 4 below it.
From the above mentioned, the present invention is based on the preventing sticking drilling rig 100 of double-wall drill pipe and mud motor, be that rotary-jet desanding device 2 is arranged on double-wall drill pipe appropriate position, (multiple rotary-jet desanding device 2 can be installed; Such as: between two double-wall drill pipes 1, a rotary-jet desanding device 2 is installed), a single double-wall drill pipe crossover sub 3 is installed between the bottom of the last root double-wall drill pipe 1 and mud motor 4; When creeping into, this preventing sticking drilling rig 100 G.I.H, as shown in Figure 1, outer annular space flow channels 91 is formed between the borehole wall 9 and preventing sticking drilling rig 100, drilling fluid is in the mode of direct circulation, respectively in double-wall drill pipe 1 Nei Guan 11 center flow channels and double-wall drill pipe between pipe 11 and outer tube 12 in annular space flow channels 13, simultaneously in well, pump into a certain amount of drilling fluid, for mud motor 6 provides power; Drilling fluid in the flow channels of center arrives shaft bottom, after mud motor centre bore, upwards return to ground along the outer annular space flow channels 91 between double-wall drill pipe outer tube and the borehole wall; Drilling fluid in interior annular space flow channels 13 is at rotary-jet desanding device 2 place, part drilling fluid drives the multistage turbine (multiple stator 25 and multiple rotor 26) of rotary-jet desanding device 2 to rotate, now, drilling fluid impulse turbine rotor 26, make its partial pressure can be converted to the mechanical energy of turbine rotor 26, turbine rotor 26 drives upper shell 221, lower house 222 synchronous axial system by key, thus to achieve in rotary-jet desanding device 2 jet orifice 2211 with the rotation (drilling fluid is rotary-jet) of upper shell 221; Drilling fluid after multistage turbine continues to inject downwards, finally at single double-wall drill pipe crossover sub 3 place, enters outer annular space flow channels 91 and upwards return to ground by return port 3121; Another part drilling fluid, by jet orifice 2211 high velocity jet to outer annular space flow channels 91, increases drilling fluid flow velocity upwards in outer annular space flow channels 91, and reduces the deposition of solid phase particles, play the effect preventing bit freezing; The High Rotation Speed of high pressure, high-velocity fluid and shell body 22 that the outside annular space flow channels 91 of rotary-jet desanding device 2 is sprayed can form hydrodynamic lubrication effect, effectively reduces the friction between drill string and the borehole wall 9.
In the present embodiment, the reaction torque produced when described mud motor creeps into is born primarily of pipe in double-wall drill pipe, and double-wall drill pipe outer tube works mainly for forming interior annular space flow channels between interior pipe the drilling fluid that circulates.
The preventing sticking drilling rig that the present invention is based on double-wall drill pipe and mud motor has following beneficial effect:
1. double-wall drill pipe and conventional mud motor combine by the present invention, significantly improve efficiency of breaking rock, increase substantially rate of penetration, shorten well construction period, thus reduce drilling cost.
2. rotary-jet desanding device and single double-wall drill pipe crossover sub are applied on drill string by the present invention, drilling fluid flow velocity and the deposition reducing solid phase particles in the outer annular space flow channels between double-wall drill pipe outer tube and the borehole wall can be increased, the filter cake that minimizing and reduction are deposited on the borehole wall, the generation of effective pre-antiseized suction lock of tool drilling.
3. the High Rotation Speed of high pressure, high-velocity fluid and shell body that the outside annular space flow channels of rotary-jet desanding device is sprayed can form hydrodynamic lubrication effect, the friction between effectively less drill string and the borehole wall.
Further, in the present embodiment, as shown in Figure 2 and Figure 3, between described upper shell 221 inwall and top connection 23 outer wall, be provided with a TC bearing 5, form described shell body 22 upper end thus and be connected with the sealed rotational of top connection 23; Concrete, TC quiet cover 51 screw thread of a TC bearing 5 is fixedly connected on top connection 23 outer wall, and the TC of a TC bearing 5 moves cover 52 screw thread and is fixedly connected on upper shell 221 inwall.
The 2nd TC bearing 6 and the 3rd TC bearing 7 is provided with between described lower house 222 inwall and lower contact 24 outer wall, also be provided with multiple ball bearing 8 between 2nd TC bearing 6 and the 3rd TC bearing 7, form described shell body 22 lower end thus and be connected with the sealed rotational of lower contact 24; Concrete, TC quiet cover 61,71 screw thread of the 2nd TC bearing 6 and the 3rd TC bearing 7 is fixedly connected on lower contact 24 outer wall, and the TC of the 2nd TC bearing 6 and the 3rd TC bearing 7 moves cover 62,72 screw thread and is fixedly connected on lower house 222 inwall; The upper and lower end of described multiple ball bearing 8 is provided with one the 3rd spacer 81 with one heart.
The present invention is based on the preventing sticking drilling rig of double-wall drill pipe and mud motor, when to manual operation and drilling fluid selection requirements not harsh, effectively can reduce and reduce filter cake being deposited on the borehole wall, and then pre-antiseized suction lock of tool drilling occurs.
The foregoing is only the schematic detailed description of the invention of the present invention, and be not used to limit scope of the present invention.Any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present invention and principle and amendment, all should belong to the scope of protection of the invention.
Claims (10)
1. the preventing sticking drilling rig based on double-wall drill pipe and mud motor, it is characterized in that: described preventing sticking drilling rig includes the double-wall drill pipe of many order arrangement serial connections, a rotary-jet desanding device is connected with between each double-wall drill pipe, the bottom of the last root double-wall drill pipe connects a crossover sub, this crossover sub lower end connecting downhole power drilling tool.
2., as claimed in claim 1 based on the preventing sticking drilling rig of double-wall drill pipe and mud motor, it is characterized in that: the shell body that described rotary-jet desanding device is arranged at outside central tube by central tube and concentric spacing is formed; Described central tube upper/lower terminal is fixedly connected with pipe in the double-wall drill pipe above and below it respectively, the upper/lower terminal of described shell body respectively with a top connection and once joint sealing be rotationally connected, the outer seal of tube grafting of described top connection and the double-wall drill pipe above it, the outer seal of tube grafting of described lower contact and the double-wall drill pipe below it; Described central tube outside wall surface order fixed cover is provided with multiple stator, and the position fixed cover that described shell body internal face is relative with described multiple stator is provided with multiple rotor; Described shell body is evenly equipped with multiple jet orifice running through its shell wall along its circumference.
3. as claimed in claim 2 based on the preventing sticking drilling rig of double-wall drill pipe and mud motor, it is characterized in that: described central tube to be fixedly connected with lower center tube screw thread by the upper center tube coaxially arranged and to form, described lower center tube epimere outer wall is provided with the first ladder positioning section that external diameter is less than upper center tube external diameter, and described multiple stator order fixed cover is located at the first ladder positioning section.
4. as claimed in claim 3 based on the preventing sticking drilling rig of double-wall drill pipe and mud motor, it is characterized in that: described shell body to be fixedly connected with lower house screw thread by the upper shell coaxially arranged and to form; Described lower house epimere inwall is provided with the second ladder positioning section that internal diameter is greater than upper shell internal diameter, and this second ladder positioning section and described first ladder positioning section are oppositely arranged, and described multiple rotor order fixed cover is located at this second ladder positioning section.
5., as claimed in claim 4 based on the preventing sticking drilling rig of double-wall drill pipe and mud motor, it is characterized in that: the upper and lower end of described multiple stator is provided with one first spacer with one heart; The upper and lower end of described multiple rotor is provided with one second spacer with one heart.
6. as claimed in claim 4 based on the preventing sticking drilling rig of double-wall drill pipe and mud motor, it is characterized in that: between described upper enclosure inner wall and top connection outer wall, be provided with a TC bearing, form described shell body upper end thus and be connected with the sealed rotational of top connection; Be provided with the 2nd TC bearing and the 3rd TC bearing between described lower house inwall and lower contact outer wall, between the 2nd TC bearing and the 3rd TC bearing, be also provided with multiple ball bearing, form described shell body lower end thus and be connected with the sealed rotational of lower contact.
7. as claimed in claim 6 based on the preventing sticking drilling rig of double-wall drill pipe and mud motor, it is characterized in that: the quiet external threading of TC of a TC bearing is fixedly connected on top connection outer wall, and the TC of a TC bearing moves external threading and is fixedly connected on upper enclosure inner wall; The quiet external threading of TC of the 2nd TC bearing and the 3rd TC bearing is fixedly connected on lower contact outer wall, and the TC of the 2nd TC bearing and the 3rd TC bearing moves external threading and is fixedly connected on lower house inwall; The upper and lower end of described multiple ball bearing is provided with one the 3rd spacer with one heart.
8., as claimed in claim 2 based on the preventing sticking drilling rig of double-wall drill pipe and mud motor, it is characterized in that: described jet orifice arranges four; Each jet orifice tilts upward setting from inside to outside from shell body.
9. as claimed in claim 1 or 2 based on the preventing sticking drilling rig of double-wall drill pipe and mud motor, it is characterized in that: described crossover sub is one-body molded by the single joint of the concentric twin adapter in top and bottom, described concentric twin adapter comprises the interior pipe of joint and the joint outer tube of bottom end seal connection, joint outer tube is evenly equipped with the return port of multiple through tube wall along its circumference; The single joint in described bottom be provided with upwards with the central duct of pipe conducting in joint; Described concentric twin adapter is connected with the double-wall drill pipe above it, the outer seal of tube grafting of described joint outer tube and the double-wall drill pipe above it, and the interior pipe of the double-wall drill pipe in described joint above Guan Yuqi is fixedly connected with; Described single joint is connected with the mud motor below it.
10., as claimed in claim 9 based on the preventing sticking drilling rig of double-wall drill pipe and mud motor, it is characterized in that: described return port arranges four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510226550.XA CN104863503B (en) | 2015-05-06 | 2015-05-06 | Preventing sticking drilling rig based on double-wall drill pipe and mud motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510226550.XA CN104863503B (en) | 2015-05-06 | 2015-05-06 | Preventing sticking drilling rig based on double-wall drill pipe and mud motor |
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| CN104863503A true CN104863503A (en) | 2015-08-26 |
| CN104863503B CN104863503B (en) | 2017-03-01 |
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| CN201510226550.XA Expired - Fee Related CN104863503B (en) | 2015-05-06 | 2015-05-06 | Preventing sticking drilling rig based on double-wall drill pipe and mud motor |
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| CN105952407A (en) * | 2016-06-03 | 2016-09-21 | 中国石油天然气股份有限公司 | Drilling tool stuck releasing method and stuck releasing device |
| CN107448160A (en) * | 2017-08-08 | 2017-12-08 | 中国石油大学(北京) | Counterflush drilling device |
| CN113404423A (en) * | 2021-08-20 | 2021-09-17 | 四川深远石油钻井工具股份有限公司 | Anti-sticking structure and anti-sticking drilling tool with same |
| CN113482608A (en) * | 2021-07-13 | 2021-10-08 | 陕西华山路桥集团有限公司 | Soil sampling method for rammed pipe |
| CN115182691A (en) * | 2022-09-07 | 2022-10-14 | 南通欧通石油设备有限公司 | Slurry conveying equipment for oil exploitation |
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| CN107448160B (en) * | 2017-08-08 | 2023-08-15 | 中国石油大学(北京) | Reverse circulation well drilling device |
| CN113482608A (en) * | 2021-07-13 | 2021-10-08 | 陕西华山路桥集团有限公司 | Soil sampling method for rammed pipe |
| CN113482608B (en) * | 2021-07-13 | 2023-08-18 | 陕西华山路桥集团有限公司 | Soil sampling method for ramming pipe |
| CN113404423A (en) * | 2021-08-20 | 2021-09-17 | 四川深远石油钻井工具股份有限公司 | Anti-sticking structure and anti-sticking drilling tool with same |
| CN115182691A (en) * | 2022-09-07 | 2022-10-14 | 南通欧通石油设备有限公司 | Slurry conveying equipment for oil exploitation |
| CN115182691B (en) * | 2022-09-07 | 2022-12-20 | 南通欧通石油设备有限公司 | Slurry conveying equipment for oil exploitation |
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| CN104863503B (en) | 2017-03-01 |
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