CN207436916U - Screw double acting speed-raising instrument - Google Patents
Screw double acting speed-raising instrument Download PDFInfo
- Publication number
- CN207436916U CN207436916U CN201721471914.1U CN201721471914U CN207436916U CN 207436916 U CN207436916 U CN 207436916U CN 201721471914 U CN201721471914 U CN 201721471914U CN 207436916 U CN207436916 U CN 207436916U
- Authority
- CN
- China
- Prior art keywords
- impact
- assembly
- screw
- hammer body
- rotary valve
- 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.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000005553 drilling Methods 0.000 claims abstract description 25
- 239000012530 fluid Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims 5
- 244000258271 Galium odoratum Species 0.000 claims 2
- 235000008526 Galium odoratum Nutrition 0.000 claims 2
- 241000237509 Patinopecten sp. Species 0.000 claims 1
- 238000007373 indentation Methods 0.000 claims 1
- 238000004080 punching Methods 0.000 claims 1
- 235000020637 scallop Nutrition 0.000 claims 1
- 230000035939 shock Effects 0.000 abstract description 6
- 239000011435 rock Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 241001247986 Calotropis procera Species 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
本实用新型提供了一种螺杆式双作用提速工具,包括动力总成、万向轴总成、传动总成和冲击总成。所述的动力总成由螺杆将液体能量转化为旋转的机械能,从而通过万向轴总成和传动总成带动冲击总成的旋转阀旋转,由于在旋转阀和阀盖都开有孔,使钻井液周期性进锤头和锤体筒腔内,在液体的推动下锤头周期性撞击锤体筒产生周向震击,同时旋转阀和阀盖的轴向孔周期性错位使液体压力变化,产生高频的轴向震动,并通过下接头将轴向和周向冲击力传递到钻头,消除粘滑现象,保护了钻头,从而提高钻头破岩效率。本实用新型螺杆式双作用提速工具在钻井液的驱动下产生轴向和周向两种冲击,能有效提高钻井效率。
The utility model provides a screw type double-action speed-increasing tool, which comprises a power assembly, a cardan shaft assembly, a transmission assembly and an impact assembly. The power assembly uses the screw to convert the liquid energy into rotational mechanical energy, thereby driving the rotary valve of the impact assembly to rotate through the cardan shaft assembly and the transmission assembly. Since there are holes in the rotary valve and the valve cover, the Drilling fluid periodically enters the hammer head and the hammer body barrel cavity, and the hammer head periodically hits the hammer body barrel under the impetus of the liquid to produce circumferential shocks. At the same time, the axial holes of the rotary valve and the valve cover are periodically misaligned to make the liquid pressure change, resulting in High-frequency axial vibration, and the axial and circumferential impact force is transmitted to the drill bit through the lower joint, which eliminates the stick-slip phenomenon, protects the drill bit, and improves the rock-breaking efficiency of the drill bit. The screw type double-action speed-increasing tool of the utility model produces axial and circumferential impacts under the drive of drilling fluid, which can effectively improve drilling efficiency.
Description
技术领域technical field
本实用新型是关于一种用于石油钻井的井下工具,尤其涉及一种螺杆式双作用提速工具 。The utility model relates to a downhole tool used for oil drilling, in particular to a screw-type double-action speed-increasing tool.
背景技术Background technique
在石油常规钻井中,PDC钻头得到广泛的应用,在现场操作时,经常会因为司钻技术、经验问题以至于送钻不及时或送钻过快,或是因为井壁摩阻问题,造成施加给钻头的钻压不稳定,影响破岩效率,甚至有可能因为钻压突然增大而损坏钻头、崩裂钻头的切削齿等,影响钻进速度。另一方面PDC钻头在钻硬或研磨性地层时,通常没有足够的扭矩来破碎岩石,从而产生卡钻的现象,井下钻杆扭力释放导致钻头失效。油田深部地层岩石坚硬、研磨极值高,应用常规牙轮钻头钻进,单只钻头进尺少,需要多次起下钻且机械钻速较低。此外,采用气体钻井技术钻进可较大程度提高机械钻速,但在地层出水的情况下易引起井下复杂情况发生,且气体钻井配套设备多,成本相对较大。In conventional oil well drilling, PDC drill bits are widely used. In field operation, due to the driller’s technical and experience problems, the drilling is not timely or too fast, or due to the friction of the well wall. The WOB to the drill bit is unstable, which affects the rock breaking efficiency, and may even damage the drill bit or crack the cutting teeth of the drill bit due to the sudden increase of the WOB, affecting the drilling speed. On the other hand, when the PDC drill bit is drilling hard or abrasive formations, it usually does not have enough torque to break the rock, resulting in the phenomenon of pipe sticking, and the torque release of the downhole drill pipe causes the drill bit to fail. The rock in the deep formation of the oil field is hard and the grinding limit is high. Conventional roller cone bits are used for drilling. The footage of a single bit is small, and multiple trips are required and the ROP is low. In addition, drilling with gas drilling technology can greatly increase the ROP, but it is easy to cause complex downhole situations when the formation is watery, and there are many supporting equipment for gas drilling, and the cost is relatively high.
针对以上问题,国内外已尝试了多种工具,取得了一定的提速效果,其中高频扭转冲击类工具占提速工具的主导地位。该类工具可以给钻头附加高频扭转冲击力,辅助钻头破岩,降低钻柱的粘滑现象,提高机械钻速。近年来也涌现出了轴向冲击类型的提速工具,该类工具可以大幅度提高钻头的岩石吃入深度,增加破岩效率,具有操作简单、提速效果好等特点。因此,有必要研发一种能够通过钻井液提供的动力,既可以提供轴向冲击,也可以提供周向冲击的复合双作用冲击器,同时具有两者的优点,辅助钻头破岩,保护钻头,延长钻头使用寿命,提高钻进速度。In response to the above problems, various tools have been tried at home and abroad, and a certain speed-up effect has been achieved, among which high-frequency torsional impact tools occupy a dominant position in speed-up tools. This type of tool can add high-frequency torsional impact force to the drill bit, assist the drill bit in breaking rock, reduce the stick-slip phenomenon of the drill string, and increase the ROP. In recent years, speed-up tools of the axial impact type have also emerged. This type of tool can greatly increase the rock penetration depth of the drill bit, increase the rock-breaking efficiency, and has the characteristics of simple operation and good speed-up effect. Therefore, it is necessary to develop a compound double-acting impactor that can provide power through drilling fluid, which can provide both axial impact and circumferential impact. Extend the service life of the drill bit and increase the drilling speed.
发明内容Contents of the invention
为了解决钻井过程中的钻头卡钻和钻柱的粘滑现象,提出了一种螺杆式双作用提速工具,以克服现有技术的缺陷,提高钻进速度。该工具同时具有轴向冲击和周向冲击,能有效保护钻头,降低成本,提高破岩效率,增加钻井效率。In order to solve the stick-slip phenomenon of the drill bit and the drill string during the drilling process, a screw-type double-action speed-increasing tool is proposed to overcome the defects of the prior art and increase the drilling speed. The tool has axial impact and circumferential impact at the same time, which can effectively protect the drill bit, reduce costs, improve rock breaking efficiency and increase drilling efficiency.
本实用新型的技术方案是:螺杆式双作用提速工具是由动力总成、万向轴总成、传动总成和冲击总成组成,动力总成前端依次连接万向轴总成、传动总成和冲击总成;所述的动力总成包括上接头、防掉锁母、防掉连杆、定子壳体、橡胶衬套和螺杆转子,橡胶衬套安装在定子壳体内部组成螺杆定子,螺杆转子和螺杆定子相互齿合,在钻井液的驱动下带动转子旋转,上接头通过螺纹与定子壳体连接,防掉连杆前端连接防掉锁母,后端连接螺杆转子;所述的万向轴总成包括活绞、球座、承压球、传动球、密封圈、锁紧套、密封套和连杆,球座安装在活绞内部,承压球按放在球座上,传动球安放在连杆端部凹槽,利用锁紧套将连杆和活绞配合,并利用密封圈和密封套密封活绞内部,连杆两端安装结构相同;所述的传动总成包括水帽、万向轴壳体、垫圈、传动轴、上轴承动圈、上轴承静圈、半圆键、轴承壳体、串轴承和转换接头,万向轴壳体后端连接定子壳体,前端连接轴承壳体,水帽后端连接万向轴总成,前端连接传动轴,并在水帽和传动轴安放垫圈,上轴承动圈通过螺纹安装传动轴上,在轴承壳体依次安装上轴承静圈、串轴承和转换接头,上轴承静圈通过半圆键周向固定在轴承壳体内部;所述的冲击总成包括旋转阀、套筒、阀盖、冲击壳体、锤头、锤体筒、锁紧筒和下接头,旋转阀的后端通过螺纹固定在传动轴前端,阀盖安装在锤体筒的端面,锤头安装在阀盖和锤体筒之间,锤体筒安装在冲击壳体的内部,通过锁紧筒和锤体筒螺纹连接将下接头轴向固定在冲击壳体上,冲击壳体与转换接头螺纹连接,锤体筒和冲击壳体通过牙嵌的方式与下接头周向固定,套筒安装在转换接头和锤体筒之间;通过动力总成的螺杆将液体能量转化为旋转的机械能,从而带动冲击总成的旋转阀旋转,由于在旋转阀和阀盖都开有孔,使钻井液周期性进锤头和锤体筒腔内,在液体的推动下锤头周期性撞击锤体筒产生周向震击,同时旋转阀和阀盖的轴向孔周期性错位使液体压力变化,产生高频的轴向震动,并通过下接头将轴向和周向冲击力传递到钻头,消除粘滑现象,防止卡钻,提高破岩效率。The technical scheme of the utility model is: the screw type double-action speed-up tool is composed of a power assembly, a cardan shaft assembly, a transmission assembly and an impact assembly, and the front end of the power assembly is connected with the cardan shaft assembly and the transmission assembly in sequence. and impact assembly; the power assembly includes an upper joint, an anti-drop lock nut, an anti-drop connecting rod, a stator housing, a rubber bush and a screw rotor, and the rubber bush is installed inside the stator housing to form a screw stator, and the screw The rotor and the screw stator mesh with each other, and the rotor is driven to rotate under the driving of the drilling fluid. The upper joint is connected to the stator shell through threads, the front end of the anti-drop connecting rod is connected to the anti-drop lock nut, and the rear end is connected to the screw rotor; the universal The shaft assembly includes a live twist, a ball seat, a pressure ball, a transmission ball, a sealing ring, a locking sleeve, a seal sleeve and a connecting rod. Place it in the groove at the end of the connecting rod, use the locking sleeve to match the connecting rod and the live twist, and use the sealing ring and the sealing sleeve to seal the inside of the live twist, and the installation structure at both ends of the connecting rod is the same; the transmission assembly includes the water cap , cardan shaft housing, washer, drive shaft, upper bearing moving ring, upper bearing static ring, half-round key, bearing housing, series bearings and conversion joints, the rear end of the cardan shaft housing is connected to the stator housing, and the front end is connected to the bearing The casing, the back end of the water cap is connected to the cardan shaft assembly, the front end is connected to the transmission shaft, and gaskets are placed on the water cap and the transmission shaft, the upper bearing moving ring is installed on the transmission shaft through threads, and the upper bearing static ring is installed in turn on the bearing housing , series bearings and conversion joints, the stationary ring of the upper bearing is circumferentially fixed inside the bearing housing through a semicircular key; the impact assembly includes a rotary valve, a sleeve, a valve cover, an impact housing, a hammer head, a hammer body barrel, Lock the barrel and the lower joint, the rear end of the rotary valve is fixed on the front end of the drive shaft through threads, the valve cover is installed on the end face of the hammer body barrel, the hammer head is installed between the valve cover and the hammer body barrel, and the hammer body barrel is installed on the impact shell Inside the body, the lower joint is axially fixed on the impact shell through the threaded connection of the locking barrel and the hammer barrel, the impact shell is threaded with the conversion joint, and the hammer barrel and the impact shell are connected to the lower joint through teeth. Circumferentially fixed, the sleeve is installed between the conversion joint and the hammer barrel; through the screw of the power assembly, the liquid energy is converted into rotational mechanical energy, thereby driving the rotary valve of the impact assembly to rotate, because both the rotary valve and the valve cover There are holes, so that the drilling fluid periodically enters the hammer head and the hammer body barrel cavity, and the hammer head periodically hits the hammer body barrel under the push of the liquid to produce circumferential shocks, and at the same time, the axial holes of the rotary valve and the valve cover are periodically dislocated so that Fluid pressure changes to generate high-frequency axial vibration, and the axial and circumferential impact force is transmitted to the drill bit through the lower joint to eliminate stick-slip phenomenon, prevent drill sticking and improve rock breaking efficiency.
上述方案中所述的螺杆式双作用提速工具,其特征在于:所述的旋转阀的前端盘面开有两个对称的扇形孔,在后端圆柱周向开有两个对称的圆孔,旋转阀在螺杆转子的带动下旋转,并在阀盖的作用下使液体压力周期性变化,产生轴向震动冲击;所述的阀盖开有4个扇形进液孔,其中包括两个冲击进液孔和两个复位回程进液孔,旋转阀旋转使液体周期性进入冲击进液孔和复位回程进液孔,液体通过进液孔进入锤头和锤体筒的腔内,利用液压推动锤头在锤体筒缺口处旋转,液体从冲击进液孔进入推动锤头周向正方向撞击锤体筒,液体从复位回程进液孔进入推动锤头周向反方向回位,冲击进液孔的截面积比复位回程进液孔的面积大,实现单周向冲击。The screw-type double-acting speed-increasing tool described in the above scheme is characterized in that two symmetrical fan-shaped holes are opened on the front-end disk of the rotary valve, and two symmetrical round holes are opened in the circumferential direction of the rear cylinder. Driven by the screw rotor, the screw rotor rotates, and under the action of the valve cover, the liquid pressure changes periodically, resulting in axial vibration shock; the valve cover has four fan-shaped liquid inlet holes, including two impact liquid inlet holes and There are two reset and return liquid inlet holes. The rotation of the rotary valve makes the liquid periodically enter the impact liquid inlet and the reset return liquid inlet. The body cylinder rotates at the gap, the liquid enters from the impact liquid inlet hole, pushes the hammer head to hit the hammer body cylinder in the positive direction, and the liquid enters from the reset return liquid inlet hole, pushes the hammer head to return in the opposite direction, and the cross-sectional area ratio of the impact liquid inlet hole is reset The area of the return liquid inlet hole is large to realize single circumferential impact.
上述方案中所述的螺杆式双作用提速工具,其特征在于:所述的锤体筒,撞击端开有均分布的两个台阶缺口,在前端加工有内螺纹,用于与锁紧筒的外螺纹配合。The screw-type double-action speed-up tool described in the above scheme is characterized in that: the hammer body barrel has two evenly distributed step gaps at the impact end, and an internal thread is processed at the front end for connecting with the locking barrel. External thread fits.
上述方案中所述的螺杆式双作用提速工具,其特征在于:所述的动力总成只提供旋转阀旋转,不需要提供大的扭矩,所以动力总成的长度较短。The screw-type double-acting speed-increasing tool described in the above solution is characterized in that the power assembly only provides the rotation of the rotary valve and does not need to provide large torque, so the length of the power assembly is relatively short.
本实用新型的有益效果是:(1) 解决了钻井过程中井下钻具容易造成的遇阻或遇卡的难题;(2) 该工具设计合理,性能可靠,产生周向冲击的同时,还可产生轴向振动冲击,从而有效保护钻头,消除钻头的粘滑和卡钻现象,提高机械钻速;(3)该工具适应性强,不仅可应用于深层直井,还可配合螺杆钻具及定向仪器应用于定向井和水平井中;(4) 该工具动力总成能量转化效率高、轴向尺寸短;(5)该工具有动作无死点、在周向正向冲击力大、反向冲击力小等优点冲击总成;(6)操作简单、寿命长、提速效果好等优点,配合PDC钻头使用可有效提高深井硬地层机械钻速。The beneficial effects of the utility model are: (1) It solves the difficult problem of being blocked or stuck by the downhole drilling tool in the drilling process; (2) The tool is reasonable in design, reliable in performance, and can also Axial vibration shock is generated to effectively protect the drill bit, eliminate the stick-slip and sticking phenomenon of the drill bit, and increase the ROP; The instrument is used in directional wells and horizontal wells; (4) The powertrain of the tool has high energy conversion efficiency and the axial dimension is short; (5) The tool has no dead point in action, and the positive impact force in the circumferential direction is large and the reverse impact force is small (6) Simple operation, long service life, good speed-up effect, etc., can effectively improve the ROP of deep wells and hard formations when used with PDC bits.
附图说明Description of drawings
图1是本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.
图2是本实用新型图1中的A-A截面图。Fig. 2 is the A-A sectional view in Fig. 1 of the utility model.
图3是本实用新型图1中的B-B截面图。Fig. 3 is a B-B sectional view in Fig. 1 of the utility model.
图4是本实用新型图1中的C-C截面图。Fig. 4 is a C-C sectional view in Fig. 1 of the utility model.
图5是本实用新型冲击部位三维视图。Fig. 5 is a three-dimensional view of the impact part of the utility model.
图6是旋转阀结构三维示意图。Fig. 6 is a three-dimensional schematic diagram of the structure of the rotary valve.
图7是阀盖结构三维示意图。Fig. 7 is a three-dimensional schematic diagram of the valve cover structure.
图8是锤头结构三维示意图。Fig. 8 is a three-dimensional schematic diagram of the hammer head structure.
图9是锤体筒结构三维示意图。Fig. 9 is a three-dimensional schematic diagram of the structure of the hammer barrel.
图中1.上接头,2.防掉锁母,3.防掉连杆,4.定子壳体,5.橡胶衬套,6.螺杆转子,7.活绞,8.球座,9.承压球,10.传动球,11.密封圈,12.锁紧套,13.密封套,14.连杆,15.水帽,16.万向轴壳体,17.垫圈,18.传动轴,19.上轴承动圈,20.上轴承静圈,21.半圆键,22.轴承壳体,23.串轴承,24.转换接头,25.旋转阀,26.套筒,27.阀盖,28.冲击壳体,29.锤头,30.锤体筒,31.锁紧筒,32.下接头。In the figure 1. Upper joint, 2. Anti-drop lock nut, 3. Anti-drop connecting rod, 4. Stator shell, 5. Rubber bushing, 6. Screw rotor, 7. Live twist, 8. Ball seat, 9. Pressure ball, 10. Transmission ball, 11. Sealing ring, 12. Locking sleeve, 13. Sealing sleeve, 14. Connecting rod, 15. Water cap, 16. Cardan shaft housing, 17. Gasket, 18. Transmission Shaft, 19. Upper bearing moving ring, 20. Upper bearing static ring, 21. Half round key, 22. Bearing shell, 23. String bearing, 24. Adapter, 25. Rotary valve, 26. Sleeve, 27. Valve Cover, 28. impact shell, 29. hammer head, 30. hammer body barrel, 31. locking barrel, 32. lower joint.
具体实施方式Detailed ways
下面结合附图及实施例,对本实用新型进行详细描述。Below in conjunction with accompanying drawing and embodiment, the utility model is described in detail.
参见附图,所述的螺杆式双作用提速工具由动力总成、万向轴总成、传动总成和冲击总成组成,动力总成前端依次连接万向轴总成、传动总成和冲击总成;所述的动力总成包括上接头1、防掉锁母2、防掉连杆3、定子壳体4、橡胶衬套5和螺杆转子6,橡胶衬套5安装在定子壳体4内部组成螺杆定子,螺杆转子6和螺杆定子相互齿合,在钻井液的驱动下带动转子6旋转,上接头1通过螺纹与定子壳体4连接,防掉连杆3前端连接防掉锁母2,后端连接螺杆转子6;所述的万向轴总成包括活绞7、球座8、承压球9、传动球10、密封圈11、锁紧套12、密封套13和连杆14,球座8安装在活绞7内部,承压球9按放在球座8上,传动球10安放在连杆14端部凹槽,利用锁紧套12将连杆(14)和活绞7配合,并利用密封圈11和密封套13密封活绞7内部,连杆14两端安装结构相同,所述的动力总成只提供旋转阀25旋转,不需要提供大的扭矩,所以动力总成的长度较短。Referring to the accompanying drawings, the screw-type double-action speed-up tool is composed of a power assembly, a cardan shaft assembly, a transmission assembly and an impact assembly, and the front end of the power assembly is connected to the cardan shaft assembly, the transmission assembly, and the impact assembly in sequence. Assembly; the power assembly includes an upper joint 1, an anti-drop lock nut 2, an anti-drop connecting rod 3, a stator casing 4, a rubber bush 5 and a screw rotor 6, and the rubber bush 5 is installed on the stator casing 4 The interior consists of a screw stator. The screw rotor 6 and the screw stator mesh with each other. Driven by the drilling fluid, the rotor 6 is driven to rotate. The upper joint 1 is connected to the stator housing 4 through threads, and the front end of the anti-drop connecting rod 3 is connected to the anti-drop lock nut 2 , the rear end is connected to the screw rotor 6; the cardan shaft assembly includes a live twist 7, a ball seat 8, a pressure ball 9, a transmission ball 10, a sealing ring 11, a locking sleeve 12, a sealing sleeve 13 and a connecting rod 14 , the ball seat 8 is installed inside the live twist 7, the pressure bearing ball 9 is placed on the ball seat 8, the transmission ball 10 is placed in the groove at the end of the connecting rod 14, and the connecting rod (14) and the live twist are connected by the locking sleeve 12 7, and use the sealing ring 11 and the sealing sleeve 13 to seal the inside of the live twist 7, the installation structure at both ends of the connecting rod 14 is the same, the power assembly only provides the rotation of the rotary valve 25, and does not need to provide a large torque, so the power assembly The resulting length is shorter.
所述的传动总成包括水帽15、万向轴壳体16、垫圈17、传动轴18、上轴承动圈19、上轴承静圈20、半圆键21、轴承壳体22、串轴承23和转换接头24,万向轴壳体16后端连接定子壳体4,前端连接轴承壳体22,水帽15后端连接万向轴总成,前端连接传动轴18,并在水帽15和传动轴18安放垫圈17,上轴承动圈19通过螺纹安装传动轴18上,在轴承壳体22依次安装上轴承静圈20、串轴承23和转换接头24,上轴承静圈20通过半圆键21周向固定在轴承壳体22内部。The transmission assembly includes water cap 15, cardan shaft housing 16, washer 17, transmission shaft 18, upper bearing moving ring 19, upper bearing static ring 20, half round key 21, bearing housing 22, string bearing 23 and The conversion joint 24, the cardan shaft housing 16 rear end is connected to the stator housing 4, the front end is connected to the bearing housing 22, the water cap 15 rear end is connected to the cardan shaft assembly, the front end is connected to the transmission shaft 18, and the water cap 15 and the transmission Shaft 18 is placed with washer 17, upper bearing moving ring 19 is installed on the transmission shaft 18 through threads, upper bearing static ring 20, series bearing 23 and adapter 24 are installed in sequence on bearing housing 22, upper bearing static ring 20 passes through semicircular key 21 circles fixed in the bearing housing 22.
所述的冲击总成包括旋转阀25、套筒26、阀盖27、冲击壳体28、锤头29、锤体筒30、锁紧筒31和下接头32,旋转阀25的后端通过螺纹固定在传动轴18前端,阀盖27安装在锤体筒30的端面,锤头29安装在阀盖27和锤体筒30之间,锤体筒30安装在冲击壳体28的内部,通过锁紧筒31和锤体筒30螺纹连接将下接头32轴向固定在冲击壳体28上,锤体筒30撞击端开有均分布的两个台阶缺口,在前端加工有内螺纹,用于与锁紧筒31的外螺纹配合,冲击壳体28与转换接头24螺纹连接,锤体筒30和冲击壳体28通过牙嵌的方式与下接头32周向固定,套筒26安装在转换接头24和锤体筒30之间;通过动力总成的螺杆将液体能量转化为旋转的机械能,从而带动冲击总成的旋转阀25旋转,由于在旋转阀25和阀盖27都开有孔,使钻井液周期性进锤头29和锤体筒30腔内,在液体的推动下锤头29周期性撞击锤体筒产生周向震击,同时旋转阀25和阀盖27的轴向孔周期性错位使液体压力变化,产生高频的轴向震动,并通过下接头32将轴向和周向冲击力传递到钻头,消除粘滑现象,防止卡钻,提高破岩效率。The impact assembly includes a rotary valve 25, a sleeve 26, a valve cover 27, an impact shell 28, a hammer head 29, a hammer body barrel 30, a locking barrel 31 and a lower joint 32. The rear end of the rotary valve 25 is threaded Fixed on the front end of the transmission shaft 18, the valve cover 27 is installed on the end face of the hammer body barrel 30, the hammer head 29 is installed between the valve cover 27 and the hammer body barrel 30, the hammer body barrel 30 is installed inside the impact shell 28, through the lock The tight cylinder 31 and the hammer cylinder 30 are threadedly connected to axially fix the lower joint 32 on the impact shell 28. The impact end of the hammer cylinder 30 is provided with two evenly distributed step gaps, and an internal thread is processed at the front end for connecting with the impact shell 28. The outer thread of the locking cylinder 31 cooperates, the impact shell 28 is threadedly connected with the adapter 24, the hammer body barrel 30 and the impact shell 28 are circumferentially fixed with the lower joint 32 by means of tooth fitting, and the sleeve 26 is installed on the adapter 24 and the hammer barrel 30; through the screw rod of the power assembly, the liquid energy is converted into mechanical energy of rotation, thereby driving the rotary valve 25 of the impact assembly to rotate. Since there are holes in the rotary valve 25 and the valve cover 27, the drilling The liquid periodically enters the cavity of the hammer head 29 and the hammer body barrel 30, and under the push of the liquid, the hammer head 29 periodically hits the hammer body barrel to produce circumferential shocks, and at the same time, the axial holes of the rotary valve 25 and the valve cover 27 are periodically misaligned to make the liquid Pressure changes generate high-frequency axial vibration, and the axial and circumferential impact force is transmitted to the drill bit through the lower joint 32 to eliminate stick-slip phenomenon, prevent drill sticking and improve rock breaking efficiency.
所述的旋转阀25的前端盘面开有两个对称的扇形孔,在后端圆柱周向开有两个对称的圆孔,旋转阀25在螺杆转子6的带动下旋转,并在阀盖27的作用下使液体压力周期性变化,产生轴向震动冲击;所述的阀盖27开有4个扇形进液孔,其中包括两个冲击进液孔和两个复位回程进液孔,旋转阀25旋转使液体周期性进入冲击进液孔和复位回程进液孔,液体通过进液孔进入锤头29和锤体筒30的腔内,利用液压推动锤头29在锤体筒30缺口处旋转,液体从冲击进液孔进入推动锤头29周向正方向撞击锤体筒30,液体从复位回程进液孔进入推动锤头29周向反方向回位,冲击进液孔的截面积比复位回程进液孔的面积大,可实现单周向冲击。The front-end disc surface of the rotary valve 25 has two symmetrical fan-shaped holes, and two symmetrical round holes are opened in the circumferential direction of the rear end cylinder. The rotary valve 25 rotates under the drive of the screw rotor 6, and under the action of the valve cover 27 The pressure of the liquid changes periodically to produce axial shocks; the valve cover 27 has four fan-shaped liquid inlets, including two impact liquid inlets and two reset return liquid inlets, and the rotary valve 25 rotates Make the liquid periodically enter the impact liquid inlet hole and the reset return liquid inlet hole, the liquid enters the cavity of the hammer head 29 and the hammer body barrel 30 through the liquid inlet hole, and uses hydraulic pressure to push the hammer head 29 to rotate at the gap of the hammer body barrel 30, and the liquid Enter from the impact liquid inlet hole and push the hammer head 29 to hit the hammer body barrel 30 in the positive direction, and the liquid enters from the reset return liquid inlet hole and push the hammer head 29 to return in the opposite direction. The cross-sectional area of the impact liquid inlet hole is larger than the reset return liquid inlet hole. The large area can realize single circumferential impact.
Claims (4)
- The instrument 1. screw double acting is raised speed, it is characterised in that:The screw double acting raises speed instrument by power assembly, ten thousand To axle assembly, drive assembly and impact assembly composition, power assembly front end is sequentially connected universal axle assembly, drive assembly and impact Assembly;The power assembly includes top connection (1), anti-lost locknut (2), anti-lost connecting rod (3), stator case (4), rubber bushing (5) and screw rotor (6), rubber bushing (5) are mounted on composition screw stator, screw rotor (6) and spiral shell inside stator case (4) Bar stator is mutually ratcheting, and in driving lower band turn sub (6) rotation of drilling fluid, top connection (1) passes through screw thread and stator case (4) Connection, anti-lost connecting rod (3) front end connect anti-lost locknut (2), rear end connecting screw rotor (6);The universal axle assembly includes It is living to twist (7), ball seat (8), pressure-bearing ball (9), drive ball (10), sealing ring (11), lock sleeve (12), sealing shroud (13) and connecting rod (14), ball seat (8) is mounted on strand (7) inside living, and for pressure-bearing ball (9) by being placed on ball seat (8), drive ball (10) is placed in connecting rod (14) connecting rod (14) and twist (7) living using lock sleeve (12) are coordinated, and utilize sealing ring (11) and sealing shroud by end recesses (13) sealing twist (7) living are internal, and connecting rod (14) both ends mounting structure is identical;The drive assembly includes water cap (15), universal Shaft housing (16), washer (17), transmission shaft (18), upper bearing (metal) moving-coil (19), upper bearing (metal) Jing Quan (20), woodruff key (21), bearing Housing (22), string bearing (23) and crossover sub (24), universal shaft housing (16) rear end connecting stator housing (4), front end connection Bear box (22), water cap (15) rear end connects universal axle assembly, front end connection transmission shaft (18), and in water cap (15) and is driven Axis (18) places washer (17), and upper bearing (metal) moving-coil (19) is installed by screw thread on transmission shaft (18), in bear box (22) successively Upper bearing (metal) Jing Quan (20), string bearing (23) and crossover sub (24) are installed, upper bearing (metal) Jing Quan (20) is circumferential by woodruff key (21) It is internal to be fixed on bear box (22);The impact assembly includes rotary valve (25), sleeve (26), valve deck (27), impact shell Body (28), tup (29), hammer body cylinder (30), locking cylinder (31) and lower contact (32), the rear end of rotary valve (25) are consolidated by screw thread Transmission shaft (18) front end is scheduled on, valve deck (27) is mounted on the end face of hammer body cylinder (30), and tup (29) is mounted on valve deck (27) and hammer Between body cylinder (30), hammer body cylinder (30) is mounted on the inside of impact housing (28), passes through locking cylinder (31) and hammer body cylinder (30) spiral shell Lower contact (32) is axially fixed on impact housing (28) by line connection, and impact housing (28) connects with crossover sub (24) screw thread It connects, hammer body cylinder (30) and impact housing (28) are circumferentially fixed with lower contact (32) by way of dental inlay, and sleeve (26) is mounted on Between crossover sub (24) and hammer body cylinder (30);Liquid energy is converted into the mechanical energy of rotation by the screw rod of power assembly, So as to drive rotary valve (25) rotation of impact assembly, due to being all provided with hole in rotary valve (25) and valve deck (27), make drilling fluid Periodically into tup (29) and hammer body cylinder (30) intracavitary, periodically hit hammer body cylinder in the promotion lower ram (29) of liquid and generate week To jarring, while the periodically dislocation of the axial hole of rotary valve (25) and valve deck (27) changes fluid pressure, generates the axis of high frequency To vibrations, and pass through lower contact (32) and axial and circumferential impact force is transferred to drill bit.
- The instrument 2. screw double acting according to claim 1 is raised speed, it is characterised in that:Before the rotary valve (25) End plate face is opened there are two symmetrical scallop hole, is circumferentially opened there are two symmetrical circular hole in back end cylindrical, rotary valve (25) is in screw rod It is rotated under the drive of rotor (6), and makes fluid pressure cyclically-varying under the action of valve deck (27), generate axial vibrations punching It hits.
- The instrument 3. screw double acting according to claim 1 is raised speed, it is characterised in that:The valve deck (27) is provided with 4 A sector inlet opening, including two impact inlet openings and two reset backhaul inlet openings, rotary valve (25) rotation makes liquid Periodically into impact inlet opening and backhaul inlet opening is resetted, liquid enters tup (29) and hammer body cylinder (30) by inlet opening Intracavitary is rotated using hydraulic drive tup (29) in hammer body cylinder (30) indentation, there, and liquid enters promotion tup from impact inlet opening (29) circumferential positive direction hits hammer body cylinder (30), and liquid enters from reset backhaul inlet opening promotes the circumferential negative direction of tup (29) to return Position, impacts that the sectional area of inlet opening is bigger than the area for resetting backhaul inlet opening, it can be achieved that single-revolution is to impact.
- The instrument 4. screw double acting according to claim 1 is raised speed, it is characterised in that:The hammer body cylinder (30), hits It hits end and is provided with two step notches being distributed, internal thread is machined in front end, for coordinating with the external screw thread of locking cylinder (31).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721471914.1U CN207436916U (en) | 2017-11-07 | 2017-11-07 | Screw double acting speed-raising instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721471914.1U CN207436916U (en) | 2017-11-07 | 2017-11-07 | Screw double acting speed-raising instrument |
Publications (1)
Publication Number | Publication Date |
---|---|
CN207436916U true CN207436916U (en) | 2018-06-01 |
Family
ID=62292134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201721471914.1U Expired - Fee Related CN207436916U (en) | 2017-11-07 | 2017-11-07 | Screw double acting speed-raising instrument |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN207436916U (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108756732A (en) * | 2018-08-02 | 2018-11-06 | 西南石油大学 | Circumferential impactor based on screw rod and spring |
CN108798503A (en) * | 2018-07-31 | 2018-11-13 | 西南石油大学 | Screw circumferential direction percussion drilling tool |
CN110454083A (en) * | 2019-08-21 | 2019-11-15 | 北京众英泰科能源科技有限公司 | Drill bit with circumferential rotary impact force |
CN110513036A (en) * | 2019-08-21 | 2019-11-29 | 北京众英泰科能源科技有限公司 | Screw drill with circumferential rotary impact force |
CN112112556A (en) * | 2020-11-20 | 2020-12-22 | 东营市正能石油科技有限公司 | Screw drill for oil field drilling operation |
CN112627721A (en) * | 2020-12-19 | 2021-04-09 | 李永和 | Continuous axial impact rock breaking hammer |
CN113756709A (en) * | 2021-09-14 | 2021-12-07 | 中海石油(中国)有限公司湛江分公司 | A composite impactor for high-efficiency auxiliary rock breaking |
CN114059918A (en) * | 2020-07-30 | 2022-02-18 | 中国石油化工集团有限公司 | Hydraulic pulse vibration integrated tool based on rotor driving |
-
2017
- 2017-11-07 CN CN201721471914.1U patent/CN207436916U/en not_active Expired - Fee Related
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108798503A (en) * | 2018-07-31 | 2018-11-13 | 西南石油大学 | Screw circumferential direction percussion drilling tool |
CN108798503B (en) * | 2018-07-31 | 2023-08-08 | 西南石油大学 | Screw Type Percussion Drilling Tools |
CN108756732A (en) * | 2018-08-02 | 2018-11-06 | 西南石油大学 | Circumferential impactor based on screw rod and spring |
CN108756732B (en) * | 2018-08-02 | 2023-11-14 | 西南石油大学 | Circumferential impactor based on screw and spring |
CN110454083B (en) * | 2019-08-21 | 2021-09-14 | 北京众英泰科能源科技有限公司 | Drill bit with circumferential rotary impact force |
CN110513036B (en) * | 2019-08-21 | 2021-09-17 | 东营利丰化工新材料有限公司 | Screw drill with circumferential rotary impact force |
CN110513036A (en) * | 2019-08-21 | 2019-11-29 | 北京众英泰科能源科技有限公司 | Screw drill with circumferential rotary impact force |
CN110454083A (en) * | 2019-08-21 | 2019-11-15 | 北京众英泰科能源科技有限公司 | Drill bit with circumferential rotary impact force |
CN114059918A (en) * | 2020-07-30 | 2022-02-18 | 中国石油化工集团有限公司 | Hydraulic pulse vibration integrated tool based on rotor driving |
CN112112556A (en) * | 2020-11-20 | 2020-12-22 | 东营市正能石油科技有限公司 | Screw drill for oil field drilling operation |
CN112627721A (en) * | 2020-12-19 | 2021-04-09 | 李永和 | Continuous axial impact rock breaking hammer |
CN112627721B (en) * | 2020-12-19 | 2022-11-01 | 盘锦卓汇钻井技术开发有限责任公司 | Continuous axial impact rock breaking hammer |
CN113756709A (en) * | 2021-09-14 | 2021-12-07 | 中海石油(中国)有限公司湛江分公司 | A composite impactor for high-efficiency auxiliary rock breaking |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107664015B (en) | Screw type double-acting accelerating tool | |
CN107664013B (en) | Impeller Type Axial and Circumferential Composite Impactor | |
CN207436916U (en) | Screw double acting speed-raising instrument | |
CN107664012B (en) | Turbine type bidirectional high-frequency composite impactor | |
CN201778652U (en) | Low-amplitude and high-frequency torsional pulse generator | |
CN104847259B (en) | A kind of power drilling tool rotary impact speed enhancing apparatus | |
CN104499941B (en) | Device for converting longitudinal vibration of drill string into torsional shock of drill bit | |
CN106121513A (en) | A kind of composite impact drilling tool | |
CN202990851U (en) | Screw type high-frequency percussion drilling tool | |
CN108798503B (en) | Screw Type Percussion Drilling Tools | |
CN105971492B (en) | A kind of magnetic base torsion impact drilling tool | |
CN109098654B (en) | Mechanical axial rotation percussion drilling tool based on screw drilling tool | |
CN106639943A (en) | High-frequency torsion-restoration axial vibration impacting tool | |
CN108798502A (en) | Screw composite impact device | |
CN108756732B (en) | Circumferential impactor based on screw and spring | |
CN112983254B (en) | Screw drilling tool for directional drilling and workover | |
CN108915583A (en) | Mechanical composite impact drilling speed tool | |
CN108547571B (en) | An eccentric torsional percussion drilling tool | |
CN107120062A (en) | A kind of high speed impact drilling tool | |
CN106050177A (en) | Stick slip prevention torsion impact drilling tool | |
CN108661550A (en) | One-way fashion impactor based on turbine and spring | |
CN112502609A (en) | Full-open type rotary-punching screw drill | |
CN207436906U (en) | The two-way high frequency composite impact device of turbine type | |
CN204326969U (en) | Method of longitudinal vibration of drilling string is converted into the device of drill bit torsional pulse | |
CN207377489U (en) | Vane type axial and circumferential composite impact device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20181107 |