WO2006125373A1 - A intermittent creeping push-type driller - Google Patents
A intermittent creeping push-type driller Download PDFInfo
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- WO2006125373A1 WO2006125373A1 PCT/CN2006/001000 CN2006001000W WO2006125373A1 WO 2006125373 A1 WO2006125373 A1 WO 2006125373A1 CN 2006001000 W CN2006001000 W CN 2006001000W WO 2006125373 A1 WO2006125373 A1 WO 2006125373A1
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- Prior art keywords
- unit
- hydraulic
- drilling machine
- positioning
- intermittent
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- 238000005553 drilling Methods 0.000 claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 239000000725 suspension Substances 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims description 22
- 230000002572 peristaltic effect Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/18—Anchoring or feeding in the borehole
Definitions
- the present invention relates to a drilling apparatus, and more particularly to a drilling apparatus capable of intermittently propelling.
- the inventor of the present invention proposed a peristaltic extension drilling machine in the Chinese patent document No. CN2357120Y, which adopts a suspension with a top suspension.
- the structure can be suspended on the derrick via a corresponding suspension device, wherein a positioning mechanism for mutual positioning with the peripheral wall structure of the wellbore is disposed, and a pusher capable of intermittent axial expansion and contraction movement is disposed in the drill body Institutional recognition
- a drill pipe propulsion unit that drives the advance and retreat, through which the intermittent axial expansion movement can be used
- the propulsion mechanism synchronously drives the drill pipe propulsion unit to perform the intermittent alternate telescopic movement to complete the drilling operation, thereby freeing the traditional bulky and complicated drilling equipment and the long drill pipe, so that the drilling equipment structure is simplified and compact, the cost is reduced, and the Limited by the depth of the well.
- a pressurized telescopic airbag structure as an intermittent telescopic mechanism. For example, when the drilling aperture is large, the advancement pressure during drilling is easily limited, and the airbag is easily restricted. The structure is vulnerable to damage and affects the service life.
- the present invention provides an intermittent creeping propulsion drilling machine with improved structure, which makes the structure more reliable, the intermittent drilling operation process is more stable, and has more desirable wide adaptability.
- the intermittent peristaltic propulsion drilling machine of the present invention is based on the structure of the drilling machine of the above document, that is, in the structure of the drilling machine body with the top suspension structure and suspended by the suspension device on the derrick.
- a positioning mechanism that is positioned relative to the peripheral wall structure of the wellbore, and is provided with a propulsion mechanism capable of intermittent axial expansion and contraction movement in the drilling machine body and driven by the same
- a drill pipe propulsion unit that advances and retreats.
- the rig body structure includes a rig front unit body and a rig rear unit body which are sequentially connected.
- the unit body of the rig is connected to the first hydraulic unit via a support connection structure.
- a positioning mechanism for mutually positioning with the peripheral wall structure of the wellbore is respectively disposed outside the rig front unit body and the rig rear unit body.
- the front and rear rig units are connected to each other by the first hydraulic unit, and the two rig units are respectively provided with positioning mechanisms for mutually positioning with the peripheral wall structure of the wellbore, Any one of the two rig unit bodies is in a relatively fixed positioning state with the wellbore peripheral wall structure, and the other rig unit body is in a non-positioned relaxed state, and the first hydraulic unit is connected through the two rig unit bodies.
- the telescopic movement of the piston enables the drilling unit body in the non-positioned relaxed state to make an axial advance and retreat motion.
- the front and rear rig units are alternately positioned and relaxed, and combined with the piston movement of the first hydraulic unit connected therebetween, the intermittent creeping of the drilling equipment can be realized.
- the current two rig unit bodies are in a fixed state with the peripheral wall of the wellbore, and the piston jacking unit in the second hydraulic unit can provide the driving force for the forward drilling operation of the drill pipe propulsion unit. Since the intermittent propulsion movement of the rig unit and the drilling driving force of the drill pipe unit are carried out by the hydraulic unit, the structural performance and the working performance are more stable and reliable, and the propulsion force is more powerful and easy to control.
- the specific arrangement manners of the front and rear rig unit and the first hydraulic unit connected therebetween may have different forms, for example, used in a specific embodiment to make the rig
- the supporting connection structure of the rear unit body is a structural member having an axially extending content cavity, and the first hydraulic unit is fixedly connected to the content chamber, and the front end of the hydraulic unit telescopic piston is fitted to the positioning guide in the supporting connection structure.
- the structure is telescopic and is connected at its front end to the rear end of the second hydraulic unit.
- the axially extending content cavity of the supporting connection structure may have a through-opening at least at one end, and the telescopic piston of the first hydraulic unit fixed therein is engaged with the positioning of a through-opening direction side thereof
- the guiding structure is telescopically moved and connected at its front end to the rear end of the second hydraulic unit. Since the telescopic movement of the second hydraulic unit can penetrate into the content cavity of the support connection structure through the axially extending content cavity through opening of the support connection structure, the structure can be made more compact, which is advantageous for further reducing the volume of the device. .
- the further improvement may further include: locating the positioning mechanism of the front unit body of the drilling machine and/or the outer unit of the drilling machine for mutually positioning with the peripheral wall structure of the well hole, and adopting a symmetric arrangement along the circumference At least two hydraulic devices, the hydraulic telescopic piston end can be positioned and supported with the peripheral wall structure of the wellbore.
- the positioning of the drilling device and the peripheral wall structure of the wellbore depends on the positive pressure of the telescopic piston in the positioning hydraulic device acting on the peripheral wall of the wellbore in the radial plane, thus
- the positioning hydraulic device is preferably generated in addition to the positive thrust component in the radial plane direction when the piston is obliquely arranged to cause the piston to move in the oblique direction. It is arranged in the radial plane direction so that the thrust piston can directly engage with the circumferential wall by the telescopic movement in the radial plane direction, and the maximum radial positioning top thrust can be obtained.
- the influence of the complex geological structure around the wellbore is reduced and/or avoided, and the well can be connected to the positioning hydraulic device.
- the top end portion of the piston in contact with the peripheral wall structure of the hole may be further provided with an thrust fitting body capable of expanding the range of the pushing.
- the above structure includes hydraulic units and/or hydraulic devices provided for providing intermittent creeping propulsion, drill pipe propulsion and positioning jacking, etc., which can be selected among various conventional hydraulic equipments, and there are no special requirements. .
- FIG. 1 is a schematic axial sectional view showing a intermittent peristaltic push-type drilling machine of the present invention.
- Figure 2 is a schematic cross-sectional view of the A-A of Figure 1.
- a positioning mechanism for supporting the wellbore peripheral wall structure 5 such as the well casing and the like is disposed in a relatively fixed positioning mechanism;
- a propulsion mechanism that can perform intermittent axial telescopic movement and a drill pipe propulsion unit 10 that is driven forward and backward, including a drilling drive motor 11, a drill rod 15, and a drill bit 16 that are sequentially connected from the rear to the front.
- the rig body includes two parts of the rig front unit body 18 and the rig rear unit body 17 which are sequentially connected.
- the rear unit body 17 has a support connecting structure 2 disposed axially in the center and having an axially extending content chamber 19, the front of which is a through opening 20.
- a first hydraulic unit 6 is fixed to the inner cavity of the support connecting structure 2, and the telescopic piston is telescopically moved by a positioning guide structure 21 that is fitted to the support connecting structure on the side of the through-mouth 20.
- the front unit body 18 of the rig has a support structure 12 disposed along the same axial direction, which also has an axially extending content space, and the drill pipe propulsion unit 10 is coupled to the support structure in an axially reciprocable manner via a corresponding guiding structure. 12 in.
- Another second hydraulic unit 8 is provided, which is simultaneously firmly connected with the rear end of the front unit body 18 of the drilling machine and the front end of the telescopic piston 7 of the first hydraulic unit 6, and the front end of the telescopic piston 9 of the second hydraulic unit 8 is
- the drill pipe propulsion unit 10 is coupled to provide the propulsion force required to drill the drill pipe propulsion unit 10 by the extrapolation of its piston 9.
- the positioning mechanism disposed outside the rig front unit body 18 and the rig rear unit body 17 for positioning with the wellbore peripheral wall structure 5 is respectively positioned in three sets of hydraulic machines arranged in a radial plane direction at a circumferentially symmetrical position.
- the hydraulic device 3, 13, each set of positioning hydraulic mechanism has two hydraulic machines arranged along the same axial direction, and the piston end portions of the two hydraulic machines in each group are respectively provided with the top support body 4 connected as a whole structure. 14, to expand the hydraulic thrusting piston and the wellbore casing and other wellbore peripheral wall structure 5 in the positioning of the top support contact, improve the stability of the positioning.
- the intermittent peristaltic drilling machine of the above structure of the present invention can satisfactorily solve the shortage of the CN2357120Y peristaltic drilling machine, especially when the drilling hole diameter is large, and the drilling pressure limitation is improved when drilling.
- the reliability and stability of positioning and locking the drilling machine with the peripheral wall of the wellbore or the casing of the wellbore are effectively solved during the drilling operation, and can be free from pebble, sand layer, The influence of complex geological structures such as voids and water layers.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
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- Earth Drilling (AREA)
Abstract
An intermittent creeping push-type driller comprises a positioning mechanism for positioning with hole-wall structure in a driller body structure, wherein the driller body structure is provided with a top-hang structure and is suspended from a bracket by suspension unit. In the driller body, an intermittent axial telescopic pushing mechanism and a drill pipe pushing unit driven by the pushing mechanism are provided. The driller body structure comprises a front unit body and a back unit body. The back unit body connects with a first hydraulic unit by a support mechanism. The rear end of the front unit body and the front end of a telescopic piston of the first hydraulic unit are respectively connected to the two ends of a second hydraulic unit. The front end of a telescopic piston of the second hydraulic unit connects with the pushing unit. The telescopic pistons of two hydraulic units move intermittently and alternately to drive the two hydraulic units moving up and down synchronously in order to complete the drilling operation. Its structure and working process are reliable and stable.
Description
间歇蠕动推进式钻井机 技术领域 Intermittent peristaltic propulsion drilling machine
本发明涉及的是一种钻井设备， 特别是一种能以间歇蠕动式推进 的钻井设备。 The present invention relates to a drilling apparatus, and more particularly to a drilling apparatus capable of intermittently propelling.
背景技术 Background technique
为解决传统钻井设备的体积庞大沉重， 能耗高等问题， 本技术发 明人在公告号为 CN2357120Y的中国专利文献中提出了一种蠕动式延伸 作业的钻井机， 采用了一种在带有顶部悬挂结构并可经相应的悬挂装 置悬置于井架上的结构， 其中设确置有用于与井孔周壁结构相互定位的 定位机构， 并在钻机体中设置有可作间歇式轴向伸縮运动的推进机构 认 In order to solve the problems of the bulky and heavy energy consumption of the conventional drilling equipment, the inventor of the present invention proposed a peristaltic extension drilling machine in the Chinese patent document No. CN2357120Y, which adopts a suspension with a top suspension. The structure can be suspended on the derrick via a corresponding suspension device, wherein a positioning mechanism for mutual positioning with the peripheral wall structure of the wellbore is disposed, and a pusher capable of intermittent axial expansion and contraction movement is disposed in the drill body Institutional recognition
和由其带动进退的钻杆推进单元， 通过该可作间歇式轴向伸缩运动的 本 And a drill pipe propulsion unit that drives the advance and retreat, through which the intermittent axial expansion movement can be used
推进机构同步带动钻杆推进单元作间歇交替式伸缩运动而完成钻进作 业， 从而摆脱了传统笨重庞杂的钻井设备及硕长的钻杆， 使钻井设备 结构简化小巧， 成本降低， 而且还可以不受钻井深度的限制。 实践中 发现， 该文献提出通过由加压伸缩气囊结构作为间歇式伸缩机构， 有 时尚难以令人满意， 例如当钻井孔径较大时， 其钻进时推进压力的提 高易受到限制， 且该气囊式结构易损坏失效， 影响使用寿命。 另一方 面， 在进行钻进作业时， 使钻井机与井孔周壁或井壁套管间相互定位 是必须的， 其也是通过高压气囊结构的膨胀力实现的， 在有些情况下， 特别是在遇有如卵石、 沙层、 空洞、 水层等复杂的地质结构时， 该高 压气囊式的定位结构与井孔周壁间的定位锁紧效果也常有不够理想之 处。 The propulsion mechanism synchronously drives the drill pipe propulsion unit to perform the intermittent alternate telescopic movement to complete the drilling operation, thereby freeing the traditional bulky and complicated drilling equipment and the long drill pipe, so that the drilling equipment structure is simplified and compact, the cost is reduced, and the Limited by the depth of the well. In practice, it has been found that the document proposes that it is unsatisfactory to be fashionable by using a pressurized telescopic airbag structure as an intermittent telescopic mechanism. For example, when the drilling aperture is large, the advancement pressure during drilling is easily limited, and the airbag is easily restricted. The structure is vulnerable to damage and affects the service life. On the other hand, it is necessary to position the drilling machine with the peripheral wall of the wellbore or the casing of the wellbore during the drilling operation, which is also achieved by the expansion force of the high-pressure airbag structure, in some cases, especially When there are complex geological structures such as pebbles, sand layers, voids, and water layers, the positioning and locking effect between the high-pressure bladder-type positioning structure and the peripheral wall of the wellbore is often not ideal.
发明内容 Summary of the invention
针对上述情况， 本发明将提供一种改进结构的间歇蠕动推进式钻 井机， 使其结构更加可靠， 间歇式的钻进作业过程更加稳定， 且具有 更理想的广泛适应性。 In view of the above, the present invention provides an intermittent creeping propulsion drilling machine with improved structure, which makes the structure more reliable, the intermittent drilling operation process is more stable, and has more desirable wide adaptability.
本发明的间歇蠕动推进式钻井机， 是在上述文献的钻井机结构的 基础上， 即同样是在带有顶部悬挂结构、 并可经悬挂装置悬置于井架 上的钻机体结构中， 设置有用于与井孔周壁结构相互定位的定位机构， 并在钻机体中设置有可作间歇式轴向伸縮运动的推进机构和由其带动
进退的钻杆推进单元。 所说的钻机体结构中包括有顺序连接的钻机前 单元体和钻机后单元体。 其中该钻机后单元体经支承连接结构与第一 液压单元连接。 另有一第二液压单元， 其同时分别与钻机前单元体的 后端和第一液压单元伸縮活塞的前端相连接， 第二液压单元伸缩活塞 的前端与钻杆推进单元连接。 在钻机前单元体和钻机后单元体外分别 设置有用于与井孔周壁结构相互定位的定位机构。 The intermittent peristaltic propulsion drilling machine of the present invention is based on the structure of the drilling machine of the above document, that is, in the structure of the drilling machine body with the top suspension structure and suspended by the suspension device on the derrick. a positioning mechanism that is positioned relative to the peripheral wall structure of the wellbore, and is provided with a propulsion mechanism capable of intermittent axial expansion and contraction movement in the drilling machine body and driven by the same A drill pipe propulsion unit that advances and retreats. The rig body structure includes a rig front unit body and a rig rear unit body which are sequentially connected. The unit body of the rig is connected to the first hydraulic unit via a support connection structure. There is a second hydraulic unit which is simultaneously connected to the rear end of the front unit body of the drilling machine and the front end of the first hydraulic unit telescopic piston, and the front end of the second hydraulic unit telescopic piston is connected to the drill pipe propulsion unit. A positioning mechanism for mutually positioning with the peripheral wall structure of the wellbore is respectively disposed outside the rig front unit body and the rig rear unit body.
在上述的结构中， 由于前、 后两个钻机单元体是通过第一液压单 元相互连接的， 且两钻机单元体外分别又都设置有用于与井孔周壁结 构相互定位的定位机构， 因此， 使两钻机单元体中的任何一个与井孔 周壁结构处于相对固定的定位状态， 而另一个钻机单元体处于非定位 的放松状态， 则通过两钻机单元体间起连接作用的该第一液压单元中 的活塞伸缩运动， 即可使该非定位放松状态的钻井单元体作轴向的进 退运动。 如此使前后两钻机单元体被交替定位和放松， 并结合其间连 接的该第一液压单元的活塞运动， 即可实现钻井设备的间歇蠕动式推 进。 而当前后两钻机单元体均处于与井孔周壁的定位固定状态， 通过 第二液压单元中的活塞顶伸运动， 即可提供钻杆推进单元作向前钻进 作业的推动力。 由于钻机单元的间歇式的推进运动和钻杆单元的钻进 推动力都是通过液压单元进行的， 因此无论其结构性能还是工作性能 都更加稳定可靠， 推进作用力也更加强大且易于调控。 In the above structure, since the front and rear rig units are connected to each other by the first hydraulic unit, and the two rig units are respectively provided with positioning mechanisms for mutually positioning with the peripheral wall structure of the wellbore, Any one of the two rig unit bodies is in a relatively fixed positioning state with the wellbore peripheral wall structure, and the other rig unit body is in a non-positioned relaxed state, and the first hydraulic unit is connected through the two rig unit bodies. The telescopic movement of the piston enables the drilling unit body in the non-positioned relaxed state to make an axial advance and retreat motion. In this way, the front and rear rig units are alternately positioned and relaxed, and combined with the piston movement of the first hydraulic unit connected therebetween, the intermittent creeping of the drilling equipment can be realized. However, the current two rig unit bodies are in a fixed state with the peripheral wall of the wellbore, and the piston jacking unit in the second hydraulic unit can provide the driving force for the forward drilling operation of the drill pipe propulsion unit. Since the intermittent propulsion movement of the rig unit and the drilling driving force of the drill pipe unit are carried out by the hydraulic unit, the structural performance and the working performance are more stable and reliable, and the propulsion force is more powerful and easy to control.
上述结构中， 所说该前、 后两钻机单元体及连接于其间的该第一 液压单元的具体设置方式可以有不同的形式， 例如在一个具体实施例 中采用的， 是使所说该钻机后单元体的支承连接结构为具有轴向延伸 内容腔形式的结构件， 并将第一液压单元固连于该内容腔中， 其液压 单元伸縮活塞的前端经配合于支承连接结构中的定位导向结构作伸缩 运动， 并以其前端连接于第二液压单元的后端处。 进一步， 还可以使 所说该支承连接结构的轴向延伸内容腔至少在一端具有贯通丌口， 固 定于其中的该第一液压单元的伸缩活塞经配合于其一贯通开口方向侧 的所说定位导向结构作伸缩运动， 并以其前端连接于第二液压单元的 后端。 由于其可以使第二液压单元的伸縮运动能经支承连接结构的轴 向延伸内容腔贯通开口处深入到支承连接结构的内容腔中， 因而可以 使结构更加紧凑， 有利于进一步减小设备的体积。
在上述结构的基础上， 进一步的改进还可以包括： 将所说的钻机 前单元体和 /或钻机后单元体外设置的用于与井孔周壁结构相互定位 的定位机构， 采用沿圆周对称设置的至少两个液压装置， 其液压伸缩 活塞端可与井孔周壁结构相互顶撑定位。 In the above structure, the specific arrangement manners of the front and rear rig unit and the first hydraulic unit connected therebetween may have different forms, for example, used in a specific embodiment to make the rig The supporting connection structure of the rear unit body is a structural member having an axially extending content cavity, and the first hydraulic unit is fixedly connected to the content chamber, and the front end of the hydraulic unit telescopic piston is fitted to the positioning guide in the supporting connection structure. The structure is telescopic and is connected at its front end to the rear end of the second hydraulic unit. Further, the axially extending content cavity of the supporting connection structure may have a through-opening at least at one end, and the telescopic piston of the first hydraulic unit fixed therein is engaged with the positioning of a through-opening direction side thereof The guiding structure is telescopically moved and connected at its front end to the rear end of the second hydraulic unit. Since the telescopic movement of the second hydraulic unit can penetrate into the content cavity of the support connection structure through the axially extending content cavity through opening of the support connection structure, the structure can be made more compact, which is advantageous for further reducing the volume of the device. . Based on the above structure, the further improvement may further include: locating the positioning mechanism of the front unit body of the drilling machine and/or the outer unit of the drilling machine for mutually positioning with the peripheral wall structure of the well hole, and adopting a symmetric arrangement along the circumference At least two hydraulic devices, the hydraulic telescopic piston end can be positioned and supported with the peripheral wall structure of the wellbore.
在这一改进结构中， 由于使钻井装置与井孔周壁结构相互定位所 依靠的， 是该定位液压装置中的伸缩活塞在径向平面上作用于井孔周 壁上的顶推正压力， 因此在设置该定位液压顶推装置时， 除釆用斜向 设置而使其活塞在斜向运动时同样能产生在径向平面方向上的正向顶 推分力外， 最好是将该定位液压装置沿径向平面方向设置， 以使其顶 推活塞能直接通过在径向平面方向上的伸缩运动与周壁作正向的顶推 配合， 能获得最大的径向定位顶推力。 In this improved structure, the positioning of the drilling device and the peripheral wall structure of the wellbore depends on the positive pressure of the telescopic piston in the positioning hydraulic device acting on the peripheral wall of the wellbore in the radial plane, thus When the positioning hydraulic pushing device is arranged, the positioning hydraulic device is preferably generated in addition to the positive thrust component in the radial plane direction when the piston is obliquely arranged to cause the piston to move in the oblique direction. It is arranged in the radial plane direction so that the thrust piston can directly engage with the circumferential wall by the telescopic movement in the radial plane direction, and the maximum radial positioning top thrust can be obtained.
进一步， 为提高上述定位液压装置的顶推活塞作用于井孔周壁结 构上的定位可靠性， 减少和 /或避免受井孔周围复杂地质结构的影响， 在所说该定位液压装置中可与井孔周壁结构相接触的活塞顶触端部还 可以再设置有能扩大顶推范围的顶推配合体。 Further, in order to improve the positioning reliability of the pushing piston of the positioning hydraulic device acting on the peripheral wall structure of the wellbore, the influence of the complex geological structure around the wellbore is reduced and/or avoided, and the well can be connected to the positioning hydraulic device. The top end portion of the piston in contact with the peripheral wall structure of the hole may be further provided with an thrust fitting body capable of expanding the range of the pushing.
上述结构中包括为用于提供间歇蠕动推进、 钻杆推进及定位顶推 等所设置的液压单元和 /或液压装置， 均可以在目前的常规使用的各 种液压设备中选用， 并无特殊要求。 The above structure includes hydraulic units and/or hydraulic devices provided for providing intermittent creeping propulsion, drill pipe propulsion and positioning jacking, etc., which can be selected among various conventional hydraulic equipments, and there are no special requirements. .
以下通过由附图所示实施例的具体实施方式， 对本发明的上述内 容再作进一步的详细说明。 但不应将此理解为本发明上述主题的范围 仅限于以下的实例。 在不脱离本发明上述技术思想情况下， 根据本领 域普通技术知识和惯用手段做出的各种替换或变更， 均应包括在本发 明的范围内。 The above contents of the present invention will be further described in detail below by way of specific embodiments of the embodiments shown in the drawings. However, the scope of the above-mentioned subject matter of the present invention should not be construed as being limited to the following examples. Various alterations and modifications may be made without departing from the spirit and scope of the invention.
附图说明 DRAWINGS
图 1是本发明一种间歇蠕动推迸式钻井机的轴向剖面结构示意图。 图 2是图 1的 A-A剖面结构示意图。 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic axial sectional view showing a intermittent peristaltic push-type drilling machine of the present invention. Figure 2 is a schematic cross-sectional view of the A-A of Figure 1.
具体实施方式 detailed description
如图 1和图 2所示， 本例间歇蠕动推进式钻井机的基本结构和原 理，与前述文献类似， 即在带有顶部悬挂结构 1并可经悬挂装置悬置于 井架 (图中未表示出)上的钻机体结构中，设置有用于与井孔套管等井孔 周壁结构 5相互撑顶而处于被相对固定的定位机构构； 在钻机体中设
置有可作间歇式轴向伸缩运动的推进机构和由其带动进退的钻杆推进 单元 10， 其中包括由后向前顺序连接的钻进驱动电机 11、 钻杆 15和 钻头 16。所说的该钻机体中包括有顺序连接的钻机前单元体 18和钻机 后单元体 17两部分。 As shown in Fig. 1 and Fig. 2, the basic structure and principle of the intermittent peristaltic drilling machine of this example are similar to the above-mentioned documents, that is, with the top suspension structure 1 and can be suspended by the suspension device on the derrick (not shown in the figure) In the drilling machine body structure, a positioning mechanism for supporting the wellbore peripheral wall structure 5 such as the well casing and the like is disposed in a relatively fixed positioning mechanism; There is provided a propulsion mechanism that can perform intermittent axial telescopic movement and a drill pipe propulsion unit 10 that is driven forward and backward, including a drilling drive motor 11, a drill rod 15, and a drill bit 16 that are sequentially connected from the rear to the front. The rig body includes two parts of the rig front unit body 18 and the rig rear unit body 17 which are sequentially connected.
钻机后单元体 17中有一沿轴向中心设置并具有轴向延伸内容腔 19 的支承连接结构 2， 该内容腔的前方为贯通的开口 20。 在该支承连接 结构 2的内容腔中固连有第一液压单元 6，其伸缩活塞 Ί经配合于支承 连接结构在贯通幵口 20方向侧的定位导向结构 21作伸缩运动。 The rear unit body 17 has a support connecting structure 2 disposed axially in the center and having an axially extending content chamber 19, the front of which is a through opening 20. A first hydraulic unit 6 is fixed to the inner cavity of the support connecting structure 2, and the telescopic piston is telescopically moved by a positioning guide structure 21 that is fitted to the support connecting structure on the side of the through-mouth 20.
钻机前单元体 18中有一沿同一轴向设置的支承结构 12，其同样也 具有轴向延伸内容空间， 钻杆推进单元 10经相应的导向结构以可作轴 向往复运动的方式配合于支承结构 12中。 The front unit body 18 of the rig has a support structure 12 disposed along the same axial direction, which also has an axially extending content space, and the drill pipe propulsion unit 10 is coupled to the support structure in an axially reciprocable manner via a corresponding guiding structure. 12 in.
另设置的一个第二液压单元 8， 其同时分别与钻机前单元体 18的 后端和第一液压单元 6的伸縮活塞 7前端稳固连接， 第二液压单元 8 的伸缩活塞 9前端则与上述的钻杆推进单元 10连接， 以便通过其活塞 9的外推实现向钻杆推进单元 10提供钻进所需的推进力。 Another second hydraulic unit 8 is provided, which is simultaneously firmly connected with the rear end of the front unit body 18 of the drilling machine and the front end of the telescopic piston 7 of the first hydraulic unit 6, and the front end of the telescopic piston 9 of the second hydraulic unit 8 is The drill pipe propulsion unit 10 is coupled to provide the propulsion force required to drill the drill pipe propulsion unit 10 by the extrapolation of its piston 9.
上述在钻机前单元体 18和钻机后单元体 17外设置的用于与井孔 周壁结构 5相互定位的定位机构， 分别均为在圆周对称位置上沿径向 平面方向设置的三组液压机等定位液压装置 3、 13， 每组定位液压机构 中均有沿同一轴向设置的两个液压机， 且每组中两液压机的活塞端部 间分别都设置有连接为整体结构形式的顶撑配合体 4、 14， 以扩大液压 顶推活塞与井孔套管等井孔周壁结构 5在定位时的顶撑接触范围， 提 高定位的稳定可靠性。 The positioning mechanism disposed outside the rig front unit body 18 and the rig rear unit body 17 for positioning with the wellbore peripheral wall structure 5 is respectively positioned in three sets of hydraulic machines arranged in a radial plane direction at a circumferentially symmetrical position. The hydraulic device 3, 13, each set of positioning hydraulic mechanism has two hydraulic machines arranged along the same axial direction, and the piston end portions of the two hydraulic machines in each group are respectively provided with the top support body 4 connected as a whole structure. 14, to expand the hydraulic thrusting piston and the wellbore casing and other wellbore peripheral wall structure 5 in the positioning of the top support contact, improve the stability of the positioning.
由此可以看出， 本发明上述结构的间歇蠕动推进式钻井机可以满 意地解决 CN2357120Y的蠕动式钻井机的不足， 特别是当钻井孔径较 大时， 解决了钻进时提高推迸压力受限的问题， 并且解决了其气囊式 结构易损坏失效和影响使用寿命的问题。 另一方面， 在进行钻进作业 时， 也有效地解决了使钻井机与井孔周壁或井壁套管间相互定位锁紧 的可靠性和稳定性， 并且可以不受如卵石、 沙层、 空洞、 水层等复杂 的地质结构的影响。
It can be seen that the intermittent peristaltic drilling machine of the above structure of the present invention can satisfactorily solve the shortage of the CN2357120Y peristaltic drilling machine, especially when the drilling hole diameter is large, and the drilling pressure limitation is improved when drilling. The problem, and solved the problem that the airbag structure is vulnerable to damage and affects the service life. On the other hand, the reliability and stability of positioning and locking the drilling machine with the peripheral wall of the wellbore or the casing of the wellbore are effectively solved during the drilling operation, and can be free from pebble, sand layer, The influence of complex geological structures such as voids and water layers.
Claims
1、 间歇蠕动推进式钻井机， 在带有顶部悬挂结构（1)并可经悬挂 装置悬置于井架上的钻机体结构中， 设置有用于与井孔周壁结构 (5)相 互定位的定位机构， 钻机体中设置有可作间歇式轴向伸缩运动的推进 机构和由其带动进退的钻杆推进单元 (10)， 其特征是所说的钻机体结 构包括顺序连接的钻机前单元体 (18)和钻机后单元体（17)， 钻机后单 元体 (17)经支承连接结构 (2)与第一液压单元 (6)连接； 另有一第二液 压单元 (8)， 其同时分别与钻机前单元体 (18)的后端和第一液压单元 (6) 的伸缩活塞 (7)的前端相连接， 第二液压单元 (8)的伸缩活塞 (9)的前端 与钻杆推进单元 (10)连接， 钻机前单元体 (18)和钻机后单元体 (17)外 分别设置有用于与井孔周壁结构 (5)相互定位的定位机构。 1. An intermittent peristaltic propulsion drilling machine, in a drilling body structure with a top suspension structure (1) and suspended by a suspension device on a derrick, is provided with a positioning mechanism for mutual positioning with the peripheral wall structure (5) of the wellbore The drill body is provided with a propulsion mechanism capable of intermittent axial telescopic movement and a drill rod propulsion unit (10) driven by the advancement and retreat, wherein the drill body structure comprises a rig front unit body (18) And the rear unit body (17), the rear unit body (17) is connected to the first hydraulic unit (6) via the supporting connection structure (2); and the second hydraulic unit (8) is simultaneously connected to the front of the drilling machine The rear end of the unit body (18) is connected to the front end of the telescopic piston (7) of the first hydraulic unit (6), and the front end of the telescopic piston (9) of the second hydraulic unit (8) and the drill pipe propulsion unit (10) The connection, the front unit body (18) of the drilling rig and the rear unit body (17) of the drilling rig are respectively provided with positioning mechanisms for mutually positioning with the peripheral wall structure (5) of the wellbore.
2、 如权利要求 1所述的间歇蠕动推进式钻井机， 其特征是所说的 钻机后单元体 (17)的支承连接结构 (2)为具有轴向延伸内容腔 (19)的结 构件， 第一液压单元 (6)固定于该内容腔 (19)中， 其伸缩活塞 (7)经配合 于支承连接结构 (2)的定位导向结构 (21)作伸縮运动，并以其前端连接于 第二液压单元 (8)的后端。 2. The intermittent peristaltic propulsion drilling machine according to claim 1, wherein the supporting connection structure (2) of the rear unit body (17) is a structural member having an axially extending content chamber (19). The first hydraulic unit (6) is fixed in the content chamber (19), and the telescopic piston (7) is telescopically moved by the positioning guiding structure (21) matched with the supporting connecting structure (2), and is connected to the front end thereof by the front end thereof. The rear end of the second hydraulic unit (8).
3、 如权利要求 2所述的间歇蠕动推进式钻井机， 其特征是所说的 支承连接结构 (2)的轴向延伸内容腔 (19)至少在一端具有贯通开口 (20)， 固定于其中的第一液压单元 (6)的伸缩活塞 (7)经配合于其一贯通开口 (20)侧的所说定位导向结构 (21)作伸缩运动， 并以其前端连接于第二液 压单元 (8)的后端。 3. The intermittent peristaltic drilling machine according to claim 2, wherein the axially extending content chamber (19) of the supporting connection structure (2) has a through opening (20) at least at one end, and is fixed therein. The telescopic piston (7) of the first hydraulic unit (6) is telescopically moved by the positioning guide structure (21) fitted to one of the through openings (20), and is connected to the second hydraulic unit with its front end (8). ) the back end.
4、 如权利要求 1所述的间歇蠕动推进式钻井机， 其特征是所说的 钻杆推进单元 (10)包括由后向前顺序连接的驱动电机 (11)、 钻杆 (15)和 钻头 (16)， 钻杆推进单元 (10)以可沿轴向往复移动的方式与钻机前单元 体 (18)的支承结构 (12)的定位导向结构动配合连接。 4. The intermittent peristaltic drilling machine according to claim 1, wherein said drill pipe propulsion unit (10) comprises a drive motor (11), a drill pipe (15) and a drill bit which are sequentially connected from the rear to the front. (16) The drill pipe propulsion unit (10) is movably coupled to the positioning guide structure of the support structure (12) of the front unit body (18) of the rig front unit in a reciprocable manner.
5、 如权利要求 1至 4之一所述的间歇蠕动推进式钻井机， 其特征 是所说钻机前单元体 (18)和 /或钻机后单元体 (17)外设置的用于与井孔 周壁结构 (5)相互定位的定位机构， 为沿圆周对称设置的至少两个液压 装置 (3， 13), 其液压伸缩活塞端可与井孔周壁结构 (5)相互顶撑定位。 The intermittent peristaltic propulsion drilling machine according to any one of claims 1 to 4, characterized in that the front unit body (18) of the drilling machine and/or the rear unit body (17) of the drilling machine are provided for the well hole. The positioning mechanism of the peripheral wall structure (5) positioned at each other is at least two hydraulic devices (3, 13) symmetrically disposed along the circumference, and the hydraulically-expandable piston end can be positioned and supported with the wellbore peripheral wall structure (5).
6、 如权利要求 5所述的间歇蠕动推进式钻井机， 其特征是所说的 液压装置 (3， 13)均沿其所在钻井单元体的径向平面方向设置。
6. The intermittent peristaltic propulsion drilling machine according to claim 5, wherein said hydraulic devices (3, 13) are disposed along a radial plane direction of the drilling unit body in which they are located.
7、 如权利要求 5所述的间歇蠕动推进式钻井机， 其特征是在所说 的液压装置 (3， 13)的液压伸缩活塞端部均设置有扩大顶撑范围的顶撑 配合体4)。
7. The intermittent peristaltic drilling machine according to claim 5, characterized in that the end of the hydraulic telescopic piston of the hydraulic device (3, 13) is provided with a top support body for expanding the range of the top support 4) .
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200342880U CN2821127Y (en) | 2005-05-26 | 2005-05-26 | Intermittent creeping pusher drilling machine |
| CN200520034288.0 | 2005-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006125373A1 true WO2006125373A1 (en) | 2006-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2006/001000 WO2006125373A1 (en) | 2005-05-26 | 2006-05-16 | A intermittent creeping push-type driller |
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| Country | Link |
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| CN (1) | CN2821127Y (en) |
| WO (1) | WO2006125373A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009062718A2 (en) * | 2007-11-15 | 2009-05-22 | Services Petroliers Schlumberger | Anchoring systems for drilling tools |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364027B (en) * | 2011-11-18 | 2013-12-04 | 中煤矿山建设集团有限责任公司 | Coning type hydraulic life-saving hole drill in mining life-saving capsule |
| CN105569662B (en) * | 2016-01-16 | 2018-07-31 | 成都航天烽火精密机电有限公司 | Can intermittently be stretched the mole retreated |
| CN107542481A (en) * | 2016-06-28 | 2018-01-05 | 成都航天烽火精密机电有限公司 | Spell coating apparatus in the section of jurisdiction of hole tunnel/tunnel wall |
| CN109441344B (en) * | 2018-11-20 | 2020-06-09 | 湖南达道新能源开发有限公司 | Processing technology of bent recharge well |
| CN109594923A (en) * | 2018-11-20 | 2019-04-09 | 湖南达道新能源开发有限公司 | Creeping pusher drilling machine |
| CN109899061B (en) * | 2019-03-29 | 2020-09-25 | 浙江大学 | Drilling and pushing type robot for in-situ seabed stratum real-time measurement |
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| US4339007A (en) * | 1980-07-25 | 1982-07-13 | Oncor Corporation | Progressing cavity motor governing system |
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|---|---|
| CN2821127Y (en) | 2006-09-27 |
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