WO2012130144A1 - Hydraulically-controlled multi-switch valve and positioning instrument therefor - Google Patents
Hydraulically-controlled multi-switch valve and positioning instrument therefor Download PDFInfo
- Publication number
- WO2012130144A1 WO2012130144A1 PCT/CN2012/073226 CN2012073226W WO2012130144A1 WO 2012130144 A1 WO2012130144 A1 WO 2012130144A1 CN 2012073226 W CN2012073226 W CN 2012073226W WO 2012130144 A1 WO2012130144 A1 WO 2012130144A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wall
- piston
- central tube
- positioning
- sliding sleeve
- Prior art date
Links
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 13
- 230000013011 mating Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
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- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
Definitions
- the utility model relates to an oil field downhole tool, in particular to a hydraulic control multiple switching valve and a positioning tool thereof.
- the utility model aims to provide a hydraulic control multiple-switching valve and a positioning tool thereof, which has a simple structure and can conveniently realize multiple switching valve operations in an oil well underground, especially a horizontal well, and greatly improves oilfield production efficiency.
- a hydraulically controlled multiple-opening valve comprising two upper central tubes and a lower central tube coaxially connected together, at the lower end of the upper central tube and at the outer periphery of the middle portion
- Upper and lower annular flanges respectively fitted with sealing rings are arranged on the upper circumference of the lower central tube near the lower annular flange, and an upper liquid inlet hole is arranged on the outer peripheral edge of the lower central tube.
- An outer annular shoulder having a sealing ring the sliding sleeve is sleeved outside the upper and lower central tubes between the outer annular shoulder and the upper annular flange, and the outer circumference of the lower end of the sliding sleeve is fluidly sealed a sliding sleeve extending sleeve outside the outer annular shoulder, the inner circumference of the lower end of the piston sleeve is provided with an inner annular shoulder with a sealing ring, located at a lower center between the inner and outer annular shoulders
- a piston lower inlet hole is arranged on the outer circumference of the tube, and an outer peripheral wall of the lower central tube between the inner and outer annular shoulders and an inner peripheral wall of the lower end of the piston sleeve form a connection with the lower inlet hole of the piston.
- the inner annular shoulder and the lower annular flange form an outlet chamber communicating with the inlet hole of the piston, and the upper central tube between the upper and lower annular flanges and the outer peripheral wall of the piston sleeve are respectively disposed on each other
- the circulating holes for communication and the sleeve circulation holes are respectively disposed on each other.
- a positioning tool for positioning the hydraulically controlled multiple switching valves comprising a positioning joint and a positioner, wherein the positioning joint is connected with a short section at a lower end of the lower central tube, and has an inner peripheral wall of the middle portion of the short joint
- An annular groove, the upper inner wall and the lower inner wall of the groove are both tapered surfaces, and the angle between the normal of the upper inner wall and the axis of the lower central tube is 75°-87°, and the normal and lower center of the lower inner wall
- the angle formed between the axes of the tubes is 20°-30°, and the positioner is fitted in the short joints on the tile on the positioner.
- the lower end faces are in mating contact with the upper inner wall and the lower inner wall of the groove in the short segment, respectively.
- the lower central pipe is first fixed on the vise, the sealing ring is installed, and then the piston sliding sleeve with the sealing ring is set on the outer annular shoulder, and then the upper part with the sealing ring
- the center tube is pushed into the inner cavity of the sliding sleeve and rotated to connect with the thread of the lower central tube.
- the sliding sleeve extension tube is placed on the outer annular shoulder of the lower central tube and connected with the sliding sleeve.
- Closing the on-off valve requires the switch tool to align the lower inlet hole of the piston so that the inlet hole is between the two opposed cups on the switch tool, and the liquid pressure is raised in the switch tool, and the high-pressure liquid is pumped through the piston.
- the hole enters the liquid inlet chamber, and pushes the piston sleeve and the extension tube to move toward the top end of the center tube.
- the circulation hole and the sleeve circulation hole are staggered and respectively located on both sides of the upper annular flange, and the switch valve is in the closed position.
- the switch tool needs to be aligned with the inlet hole on the piston and the liquid pressure is raised in the switch tool.
- the piston sleeve and its extension tube move under the hydraulic action to the lower end of the central tube, then the cycle
- the hole is aligned with the sleeve circulation hole again, and the on-off valve is opened.
- the switch tool has been described in detail in Chinese Patent 200820103440.X, and will not be described again here.
- the positioning principle of the positioning tool of the utility model is as follows: when the positioner and the switch tool at the lower end of the coiled tubing are connected to the positioning joint, the spring compressed by the retainer under the tile is opened, because the right end of the positioning joint is a slow angle structure. The left end is a steep angle structure. The coiled tubing can continue to descend (to the right) against a relatively small resistance. However, at this time, the coiled tubing will encounter a relatively large resistance, which can be detected on the ground. Combined with the depth of entry of each switching valve, it is possible to determine which switching valve the switching tool is aimed at.
- the structure of the positioner used in the present invention is basically the same as that of the switch tool in Chinese Patent 200820103439.7, and will not be described herein.
- the characteristic of this type of positioning tool is that the positioning joints of each on-off valve are the same.
- One positioner is enough. It is suitable for the case where there are many on-off valves in one well. The more the on-off valves, the stronger their superiority. There is no step-down of the inner diameter of the on-off valve. To open or close any of the on-off valves, you only need to replace the short section between the switch tool and the positioner (the short section used to close the valve is shorter, and the short section used to open the valve is a little longer). The coiled tubing enters the well once to open or close several valves without the need to change tools.
- the utility model has the advantages of simple structure, convenient operation of multiple on-off valves in oil wells, especially horizontal wells, and greatly improves oilfield production efficiency.
- Figure 1 is a front perspective view showing the structure of the on-off valve of the utility model; 2 is a schematic structural view of the closed state of the on-off valve of the present invention;
- Figure 3 is a schematic view showing the connection structure of the on-off valve and the positioning joint of the utility model
- Figure 4 is a schematic view of the main view half-section structure of the positioner of the present invention.
- a hydraulically controlled multiple switching valve as shown in FIG. 1 and FIG. 2, the switching valve includes two upper central tubes 1 and a lower central tube 2 coaxially connected together, at the lower end of the upper central tube 1 and at the middle thereof Upper and lower annular flanges 11, 12 fitted with sealing rings are respectively disposed on the outer circumference.
- a piston upper liquid inlet hole 7 is provided on an outer peripheral edge of the lower center tube 2 near the lower annular flange 12, and the number of the liquid inlet holes 7 on the piston is four, and the distribution is evenly spaced on the upper outer circumference of the lower center tube 2. .
- An outer annular shoulder 41 with a sealing ring is disposed on the outer peripheral edge of the central portion of the lower central tube 2, and slides outside the upper and lower central tubes between the outer annular shoulder 41 and the upper annular flange 11.
- the piston sleeve 3 is fitted, and the outer periphery of the lower end of the piston sleeve 3 is fluidly sealed with a sliding sleeve extension tube 4 which is sealed and fitted outside the outer annular shoulder.
- a sealing ring 20 is disposed between the lower end of the piston sleeve 3 and the connecting end surface of the sleeve extension tube 4, so that a liquid-tight connection structure is formed between the piston sleeve 3 and the sleeve extension tube 4.
- An inner annular shoulder having a sealing ring is disposed on the inner circumference of the lower end of the piston sleeve 3, and a piston lower inlet hole 8 is disposed on the outer circumference of the lower central tube between the inner and outer annular shoulders, and the inner and outer annular blocks are disposed.
- An inlet chamber 18 communicating with the lower piston inlet 8 is formed between the outer peripheral wall of the lower central tube between the shoulders and the inner peripheral wall of the lower end of the piston sleeve.
- a liquid discharge chamber 19 communicating with the inlet hole 7 of the piston is formed.
- the upper central tube 1 between the upper and lower annular flanges 11, 12 and the outer peripheral wall of the piston sleeve 3 are respectively provided with a circulating hole 5 and a sliding sleeve circulating hole 6 which communicate with each other.
- Closing the on-off valve requires the switch tool 14 to be aligned with the lower piston inlet port 8 such that the inlet port 8 is between the two opposed cups on the switch tool 14 and raises the liquid pressure within the switch tool 14, high pressure liquid
- the piston sleeve 3 and its extension tube 4 are pushed into the top end of the center tube 1 through the piston lower inlet hole 8, and the circulation hole 5 and the sleeve circulation hole 6 are staggered and respectively located on the upper portion.
- the switching valve is in the closed position.
- a positioning tool for positioning the hydraulically controlled multiple switching valves comprising a positioning joint 16 and a positioner, the structure of the positioner used in the utility model and the patent 200820103439.7
- the structure of the switch tool is basically the same and will not be described here.
- the positioning joint 16 has a short joint connected to the lower end of the lower central tube 2.
- the inner peripheral wall of the middle portion of the short joint has an annular groove, and the upper inner wall 15 and the lower inner wall 17 of the groove are tapered surfaces, and the upper inner wall 15
- the angle formed between the normal line and the lower central tube axis is 75°-87°, and the angle formed between the normal line of the lower inner wall 17 and the axis of the lower central tube is 20°-30°.
- the positioner is fitted in the short section, and the positioner is embedded.
- the upper end face 25 and the lower end face 27 of the shoe 26 are in mating contact with the upper inner wall 15 and the lower inner wall of the groove in the short segment, respectively.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Multiple-Way Valves (AREA)
Abstract
A hydraulically-controlled multi-switch valve comprises an upper central pipe (1) and a lower central pipe (2) which are coaxially connected together. A piston sliding sleeve (3) is matchingly sleeved on the outside of the pipes, and a liquid inlet chamber (18) and a liquid outlet chamber (19) which are sealingly separated from each other are formed between the piston sliding sleeve (3) and the lower central pipe (2). The piston sliding sleeve (3) and the pipe wall of the middle portion of the upper central pipe (1) are provided with a sliding sleeve circulation hole (6) and a circulation hole (5), respectively. A positioning instrument for positioning the hydraulically-controlled multi-switch valve comprises a positioning joint and a positioning device. The positioning joint is a short section connected to the lower end of the lower central pipe. The inner circumferential wall of the middle of the short section is provided with an annular groove. The positioning device is matchingly sleeved in the short section, and the upper end face and the lower end face of an embedded tile arranged on the positioning device are in matching contact with the inner wall of the upper portion and the inner wall of the lower portion of the groove, respectively. The hydraulically-controlled multi-switch valve and the positioning instrument therefor can be used in a vertical well of an oil field, and in particular in a water exploration and separation pipe string and a multifunctional well-completion pipe string of a horizontal well.
Description
一种液压控制多次开关阀及其定位工具 技术领域 Hydraulic control multiple switching valve and positioning tool thereof
本实用新型涉及一种油田井下工具， 特别是一种液压控制多次开关阀及其定 位工具。 The utility model relates to an oil field downhole tool, in particular to a hydraulic control multiple switching valve and a positioning tool thereof.
背景技术 Background technique
目前， 在油田生产的井下作业中， 一般是通过投钢球蹩压打开或关闭流体控 制阀以及通过钢丝作业打开或关闭流体控制阀。 这些阀要么只能打开一次或关闭 一次， 不能实现多次开关， 因此无法满足油水井多层段分层处理或油井分层找隔 水的技术要求， 要么不能应用于水平井。 Currently, in downhole operations in oil field production, it is common to open or close the fluid control valve by ball casting and to open or close the fluid control valve through wire work. These valves can only be opened once or closed once, and multiple switches cannot be realized. Therefore, the technical requirements for multi-layer stratification of oil and water wells or stratification of oil wells should not be met, or they should not be applied to horizontal wells.
发明内容 Summary of the invention
本实用新型的目的在于提供一种液压控制多次开关阀及其定位工具， 其结构 简单， 能够方便地实现油田井下特别是水平井的多次开关阀作业， 大大提高油田 生产效率。 The utility model aims to provide a hydraulic control multiple-switching valve and a positioning tool thereof, which has a simple structure and can conveniently realize multiple switching valve operations in an oil well underground, especially a horizontal well, and greatly improves oilfield production efficiency.
本实用新型的目的是这样实现的， 一种液压控制多次开关阀， 该开关阀包括两根 同轴连接在一起的上中心管与下中心管， 在上中心管的下端以及其中部外周缘上 分别设置着嵌装有密封圈的上下环形凸缘， 在靠近所述下环形凸缘的下中心管上 部外周缘上设置着活塞上进液孔， 下中心管的中部外周缘上设置着嵌装有密封圈 的外环形挡肩， 在该外环形挡肩与所述的上环形凸缘之间的上下中心管外呈滑动 配合套装着活塞滑套， 活塞滑套下端外周缘上液密封连接着一根密封配合套装在 所述外环形挡肩外部的滑套延长管， 活塞滑套的下端内周缘上设置着具有密封圈 的内环形挡肩， 位于内、 外环形挡肩之间的下中心管外周缘上设置着活塞下进液 孔， 内外环形挡肩之间的下中心管外周壁与活塞滑套下端内周壁之间构成与所述 活塞下进液孔相连通的进液室， 内环形挡肩与下环形凸缘之间构成与所述活塞上 进液孔相连通的出液室， 位于上下环形凸缘之间的上中心管以及活塞滑套外周壁 上分别设置着相互沟通的循环孔以及滑套循环孔。 The object of the present invention is achieved by a hydraulically controlled multiple-opening valve comprising two upper central tubes and a lower central tube coaxially connected together, at the lower end of the upper central tube and at the outer periphery of the middle portion Upper and lower annular flanges respectively fitted with sealing rings are arranged on the upper circumference of the lower central tube near the lower annular flange, and an upper liquid inlet hole is arranged on the outer peripheral edge of the lower central tube. An outer annular shoulder having a sealing ring, the sliding sleeve is sleeved outside the upper and lower central tubes between the outer annular shoulder and the upper annular flange, and the outer circumference of the lower end of the sliding sleeve is fluidly sealed a sliding sleeve extending sleeve outside the outer annular shoulder, the inner circumference of the lower end of the piston sleeve is provided with an inner annular shoulder with a sealing ring, located at a lower center between the inner and outer annular shoulders A piston lower inlet hole is arranged on the outer circumference of the tube, and an outer peripheral wall of the lower central tube between the inner and outer annular shoulders and an inner peripheral wall of the lower end of the piston sleeve form a connection with the lower inlet hole of the piston. a chamber, the inner annular shoulder and the lower annular flange form an outlet chamber communicating with the inlet hole of the piston, and the upper central tube between the upper and lower annular flanges and the outer peripheral wall of the piston sleeve are respectively disposed on each other The circulating holes for communication and the sleeve circulation holes.
一种用以对所述液压控制多次开关阀进行定位的定位工具， 包括定位接头以及定 位器， 所说的定位接头为在下中心管的下端连接着一短节， 短节中部内周壁上具 有一环形凹槽， 凹槽的上部内壁以及下部内壁均为锥形面， 上部内壁的法线与下 中心管轴线之间构成的夹角为 75°-87°， 下部内壁的法线与下中心管的轴线之间构 成的夹角为 20°-30°， 所说的定位器配合套装在所说的短节内， 定位器上的嵌瓦上
下端面分别与短节内凹槽的上部内壁以及下部内壁相配合接触。 A positioning tool for positioning the hydraulically controlled multiple switching valves, comprising a positioning joint and a positioner, wherein the positioning joint is connected with a short section at a lower end of the lower central tube, and has an inner peripheral wall of the middle portion of the short joint An annular groove, the upper inner wall and the lower inner wall of the groove are both tapered surfaces, and the angle between the normal of the upper inner wall and the axis of the lower central tube is 75°-87°, and the normal and lower center of the lower inner wall The angle formed between the axes of the tubes is 20°-30°, and the positioner is fitted in the short joints on the tile on the positioner. The lower end faces are in mating contact with the upper inner wall and the lower inner wall of the groove in the short segment, respectively.
本实用新型开关阀安装时先将下中心管固定在台钳上， 装好密封圈， 然后将 带有密封圈的活塞滑套套装在其外环形挡肩上， 之后将带有密封圈的上中心管推 入滑套内腔并旋转与下中心管的螺纹接好， 最后将滑套延长管套装在下中心管凸 起的外环形挡肩上并与滑套连接好。 开关阀处于打开位置时， 所述的循环孔与滑 套循环孔对齐， 中心管内部空间与滑套外面是连通的。 关闭开关阀需要开关工具 对准活塞下进液孔， 使进液孔处于开关工具上的两个对装的皮碗之间， 并在开关 工具内升高液体压力， 高压液体通过活塞下进液孔进入所说的进液室内， 推动活 塞滑套及其延长管向上中心管顶端运动， 此时循环孔与滑套循环孔错开并分别位 于上环形凸缘两侧， 则开关阀处于关闭位置。 When the on-off valve of the utility model is installed, the lower central pipe is first fixed on the vise, the sealing ring is installed, and then the piston sliding sleeve with the sealing ring is set on the outer annular shoulder, and then the upper part with the sealing ring The center tube is pushed into the inner cavity of the sliding sleeve and rotated to connect with the thread of the lower central tube. Finally, the sliding sleeve extension tube is placed on the outer annular shoulder of the lower central tube and connected with the sliding sleeve. When the on-off valve is in the open position, the circulation hole is aligned with the sleeve circulation hole, and the inner space of the center tube is in communication with the outside of the sleeve. Closing the on-off valve requires the switch tool to align the lower inlet hole of the piston so that the inlet hole is between the two opposed cups on the switch tool, and the liquid pressure is raised in the switch tool, and the high-pressure liquid is pumped through the piston. The hole enters the liquid inlet chamber, and pushes the piston sleeve and the extension tube to move toward the top end of the center tube. At this time, the circulation hole and the sleeve circulation hole are staggered and respectively located on both sides of the upper annular flange, and the switch valve is in the closed position.
同样， 要打开已关闭的开关阀则需要将开关工具对准活塞上进液孔并在开关 工具内升高液体压力， 活塞滑套及其延长管在液压作用下向下中心管下端运动， 则循环孔与滑套循环孔再次对齐， 开关阀打开。 该开关工具已在中国专利 200820103440.X中有详细描述， 此处不再赘述。 Similarly, to open the closed switch valve, the switch tool needs to be aligned with the inlet hole on the piston and the liquid pressure is raised in the switch tool. The piston sleeve and its extension tube move under the hydraulic action to the lower end of the central tube, then the cycle The hole is aligned with the sleeve circulation hole again, and the on-off valve is opened. The switch tool has been described in detail in Chinese Patent 200820103440.X, and will not be described again here.
本实用新型定位工具的定位原理是： 当接在连续油管下端的定位器及开关工 具下到定位接头里时， 定位器嵌瓦下被压縮的弹簧弹开， 由于定位接头右端是缓 角结构， 左端是陡角结构， 连续油管克服相对较小的阻力就可继续下行 （向右）， 但此时上提 （向左） 连续油管就会遇到比较大的阻力， 在地面可以探测到， 结合 每个开关阀的下入深度记录就可以确定开关工具对准哪个开关阀了。 本实用新型 中所用的定位器的结构与中国专利 200820103439.7中的开关工具结构基本相同， 此处不再赘述。 The positioning principle of the positioning tool of the utility model is as follows: when the positioner and the switch tool at the lower end of the coiled tubing are connected to the positioning joint, the spring compressed by the retainer under the tile is opened, because the right end of the positioning joint is a slow angle structure. The left end is a steep angle structure. The coiled tubing can continue to descend (to the right) against a relatively small resistance. However, at this time, the coiled tubing will encounter a relatively large resistance, which can be detected on the ground. Combined with the depth of entry of each switching valve, it is possible to determine which switching valve the switching tool is aimed at. The structure of the positioner used in the present invention is basically the same as that of the switch tool in Chinese Patent 200820103439.7, and will not be described herein.
该型定位工具的特点是每个开关阀所配套定位接头都是一样的， 一个定位器 就够用了， 适用于一口井里有很多开关阀的情况， 开关阀越多其优越性越强， 开 关阀内径不存在逐级縮小的情况。 打开或关闭任何一个开关阀只需要更换开关工 具与定位器之间的短节即可 （关阀所用的短节短一点， 开阀所用的短节长一点）。 连续油管一次入井开启或关闭几个阀而不需要更换工具。 The characteristic of this type of positioning tool is that the positioning joints of each on-off valve are the same. One positioner is enough. It is suitable for the case where there are many on-off valves in one well. The more the on-off valves, the stronger their superiority. There is no step-down of the inner diameter of the on-off valve. To open or close any of the on-off valves, you only need to replace the short section between the switch tool and the positioner (the short section used to close the valve is shorter, and the short section used to open the valve is a little longer). The coiled tubing enters the well once to open or close several valves without the need to change tools.
本实用新型结构简单，能够方便地实现油田井下特别是水平井的多次开关阀作 业， 大大提高油田生产效率。 The utility model has the advantages of simple structure, convenient operation of multiple on-off valves in oil wells, especially horizontal wells, and greatly improves oilfield production efficiency.
附图说明 DRAWINGS
下面将结合附图对本实用新型作进一步详细的说明。 The present invention will be further described in detail below with reference to the accompanying drawings.
图 1为本实用新型开关阀的主视半剖面结构示意图；
图 2为本实用新型开关阀的关闭状态结构示意图； Figure 1 is a front perspective view showing the structure of the on-off valve of the utility model; 2 is a schematic structural view of the closed state of the on-off valve of the present invention;
图 3为本实用新型开关阀与定位接头的连接结构示意图； Figure 3 is a schematic view showing the connection structure of the on-off valve and the positioning joint of the utility model;
图 4为本实用新型定位器主视半剖面结构示意图。 Figure 4 is a schematic view of the main view half-section structure of the positioner of the present invention.
具体实肺式 Specific lung
一种液压控制多次开关阀， 如图 1、 图 2所示， 该开关阀包括两根同轴连接在 一起的上中心管 1与下中心管 2，在上中心管 1的下端以及其中部外周缘上分别设 置着嵌装有密封圈的上、 下环形凸缘 11、 12。 在靠近所述下环形凸缘 12的下中心 管 2上部外周缘上设置着活塞上进液孔 7， 活塞上进液孔 7的数量为 4个， 均布间 隔布置在下中心管 2的上部外周缘上。 下中心管 2的中部外周缘上设置着嵌装有 密封圈的外环形挡肩 41， 在该外环形挡肩 41与所述的上环形凸缘 11之间的上、 下中心管外呈滑动配合套装着活塞滑套 3，活塞滑套 3下端外周缘上液密封连接着 一根密封配合套装在所述外环形挡肩外部的滑套延长管 4。活塞滑套 3的下端与滑 套延长管 4的连接端面之间设置着密封圈 20， 使得活塞滑套 3与滑套延长管 4二 者之间构成液密封连接结构。 活塞滑套 3 的下端内周缘上设置着具有密封圈的内 环形挡肩， 位于内、 外环形挡肩之间的下中心管外周缘上设置着活塞下进液孔 8， 内、 外环形挡肩之间的下中心管外周壁与活塞滑套下端内周壁之间构成与所述活 塞下进液孔 8相连通的进液室 18。 内环形挡肩与下环形凸缘之间构成与所述活塞 上进液孔 7相连通的出液室 19。 位于上、 下环形凸缘 11、 12之间的上中心管 1以 及活塞滑套 3外周壁上分别设置着相互沟通的循环孔 5以及滑套循环孔 6。 A hydraulically controlled multiple switching valve, as shown in FIG. 1 and FIG. 2, the switching valve includes two upper central tubes 1 and a lower central tube 2 coaxially connected together, at the lower end of the upper central tube 1 and at the middle thereof Upper and lower annular flanges 11, 12 fitted with sealing rings are respectively disposed on the outer circumference. A piston upper liquid inlet hole 7 is provided on an outer peripheral edge of the lower center tube 2 near the lower annular flange 12, and the number of the liquid inlet holes 7 on the piston is four, and the distribution is evenly spaced on the upper outer circumference of the lower center tube 2. . An outer annular shoulder 41 with a sealing ring is disposed on the outer peripheral edge of the central portion of the lower central tube 2, and slides outside the upper and lower central tubes between the outer annular shoulder 41 and the upper annular flange 11. The piston sleeve 3 is fitted, and the outer periphery of the lower end of the piston sleeve 3 is fluidly sealed with a sliding sleeve extension tube 4 which is sealed and fitted outside the outer annular shoulder. A sealing ring 20 is disposed between the lower end of the piston sleeve 3 and the connecting end surface of the sleeve extension tube 4, so that a liquid-tight connection structure is formed between the piston sleeve 3 and the sleeve extension tube 4. An inner annular shoulder having a sealing ring is disposed on the inner circumference of the lower end of the piston sleeve 3, and a piston lower inlet hole 8 is disposed on the outer circumference of the lower central tube between the inner and outer annular shoulders, and the inner and outer annular blocks are disposed. An inlet chamber 18 communicating with the lower piston inlet 8 is formed between the outer peripheral wall of the lower central tube between the shoulders and the inner peripheral wall of the lower end of the piston sleeve. Between the inner annular shoulder and the lower annular flange, a liquid discharge chamber 19 communicating with the inlet hole 7 of the piston is formed. The upper central tube 1 between the upper and lower annular flanges 11, 12 and the outer peripheral wall of the piston sleeve 3 are respectively provided with a circulating hole 5 and a sliding sleeve circulating hole 6 which communicate with each other.
关闭开关阀需要开关工具 14对准活塞下进液孔 8， 使进液孔 8处于开关工具 14上的两个对装的皮碗之间， 并在开关工具 14内升高液体压力， 高压液体通过活 塞下进液孔 8进入所说的进液室 18内， 推动活塞滑套 3及其延长管 4向上中心管 1顶端运动， 此时循环孔 5与滑套循环孔 6错开并分别位于上环形凸缘 11两侧， 如图 2所示， 则开关阀处于关闭位置。 Closing the on-off valve requires the switch tool 14 to be aligned with the lower piston inlet port 8 such that the inlet port 8 is between the two opposed cups on the switch tool 14 and raises the liquid pressure within the switch tool 14, high pressure liquid The piston sleeve 3 and its extension tube 4 are pushed into the top end of the center tube 1 through the piston lower inlet hole 8, and the circulation hole 5 and the sleeve circulation hole 6 are staggered and respectively located on the upper portion. On both sides of the annular flange 11, as shown in Fig. 2, the switching valve is in the closed position.
一种用以对所述液压控制多次开关阀进行定位的定位工具，如图 3、图 4所示， 包括定位接头 16 以及定位器， 本实用新型中所用的定位器的结构与专利 200820103439.7中的开关工具结构基本相同， 此处不再赘述。 所说的定位接头 16 为在下中心管 2 的下端连接着一短节， 短节中部内周壁上具有一环形凹槽， 凹槽 的上部内壁 15以及下部内壁 17均为锥形面， 上部内壁 15的法线与下中心管轴线 之间构成的夹角为 75°-87°，下部内壁 17的法线与下中心管的轴线之间构成的夹角 为 20°-30°。 如图 4所示， 所说的定位器配合套装在所说的短节内， 定位器上的嵌
t A positioning tool for positioning the hydraulically controlled multiple switching valves, as shown in FIG. 3 and FIG. 4, comprising a positioning joint 16 and a positioner, the structure of the positioner used in the utility model and the patent 200820103439.7 The structure of the switch tool is basically the same and will not be described here. The positioning joint 16 has a short joint connected to the lower end of the lower central tube 2. The inner peripheral wall of the middle portion of the short joint has an annular groove, and the upper inner wall 15 and the lower inner wall 17 of the groove are tapered surfaces, and the upper inner wall 15 The angle formed between the normal line and the lower central tube axis is 75°-87°, and the angle formed between the normal line of the lower inner wall 17 and the axis of the lower central tube is 20°-30°. As shown in FIG. 4, the positioner is fitted in the short section, and the positioner is embedded. t
WO 2012/130144 WO 2012/130144
瓦 26上端面 25以及下端面 27分别与短节内凹槽的上部内壁 15以及下部内壁 相配合接触。
The upper end face 25 and the lower end face 27 of the shoe 26 are in mating contact with the upper inner wall 15 and the lower inner wall of the groove in the short segment, respectively.
Claims
1. 一种液压控制多次开关阀， 其特征是： 该开关阀包括两根同轴连接在一起的上 中心管与下中心管， 在上中心管的下端以及其中部外周缘上分别设置着嵌装有密 封圈的上下环形凸缘， 在靠近所述下环形凸缘的下中心管上部外周缘上设置着活 塞上进液孔， 下中心管的中部外周缘上设置着嵌装有密封圈的外环形挡肩， 在该 外环形挡肩与所述的上环形凸缘之间的上下中心管外呈滑动配合套装着活塞滑 套， 活塞滑套下端外周缘上液密封连接着一根密封配合套装在所述外环形挡肩外 部的滑套延长管， 活塞滑套的下端内周缘上设置着具有密封圈的内环形挡肩， 位 于内、 外环形挡肩之间的下中心管外周缘上设置着活塞下进液孔， 内外环形挡肩 之间的下中心管外周壁与活塞滑套下端内周壁之间构成与所述活塞下进液孔相连 通的进液室， 内环形挡肩与下环形凸缘之间构成与所述活塞上进液孔相连通的出 液室， 位于上下环形凸缘之间的上中心管以及活塞滑套外周壁上分别设置着相互 沟通的循环孔以及滑套循环孔。 A hydraulically controlled multiple switching valve, characterized in that: the switching valve comprises two upper central tubes and a lower central tube coaxially connected together, respectively disposed at a lower end of the upper central tube and an outer circumference of the middle portion thereof An upper and lower annular flange embedded with a sealing ring, a piston upper inlet hole is disposed on an outer peripheral edge of the upper central tube near the lower annular flange, and a sealing ring is disposed on the outer peripheral edge of the central portion of the lower central tube The outer annular shoulder is provided with a sliding sleeve around the upper and lower central tubes between the outer annular shoulder and the upper annular flange, and a piston sliding sleeve is arranged on the outer circumference of the lower end of the sliding sleeve of the piston. a sliding sleeve extension tube disposed outside the outer annular shoulder, and an inner annular shoulder having a sealing ring disposed on an inner circumference of the lower end of the piston sliding sleeve, on the outer circumference of the lower central tube between the inner and outer annular shoulders a piston lower inlet hole is disposed, and an outer liquid inlet wall of the lower central tube between the inner and outer annular shoulders and an inner peripheral wall of the lower end of the piston sleeve form an inlet chamber communicating with the lower inlet hole of the piston, and the inner annular shoulder is Between the annular flanges, an outlet chamber communicating with the inlet hole of the piston is formed, and the upper central tube between the upper and lower annular flanges and the outer peripheral wall of the piston sleeve are respectively provided with a circulating hole for communicating with each other and a sleeve circulation hole.
2. —种用以对权利要求 1所述液压控制多次开关阀进行定位的定位工具， 包括定 位接头以及定位器， 其特征是： 所说的定位接头为在下中心管的下端连接着一短 节， 短节中部内周壁上具有一环形凹槽， 凹槽的上部内壁以及下部内壁均为锥形 面， 上部内壁的法线与下中心管轴线之间构成的夹角为 75°-87°， 下部内壁的法线 与下中心管的轴线之间构成的夹角为 20°-30°， 所说的定位器配合套装在所说的短 节内， 定位器上的嵌瓦上下端面分别与短节内凹槽的上部内壁以及下部内壁相配 合接触。 2. A positioning tool for positioning a hydraulically controlled multiple switching valve according to claim 1, comprising a positioning joint and a positioner, wherein: said positioning joint is connected to a lower end of the lower central tube The inner peripheral wall of the middle portion of the short section has an annular groove, and the upper inner wall and the lower inner wall of the groove are both tapered surfaces, and the angle between the normal of the upper inner wall and the axis of the lower central tube is 75°-87°. The angle between the normal line of the lower inner wall and the axis of the lower central tube is 20°-30°, and the positioner is fitted in the short joint, and the upper and lower end faces of the tile on the positioner are respectively The upper inner wall and the lower inner wall of the groove in the short section are in mating contact.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120089349.9U CN202023535U (en) | 2011-03-30 | 2011-03-30 | Hydraulic-control repeated on-off valve and locating instrument of same |
| CN201120089349.9 | 2011-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012130144A1 true WO2012130144A1 (en) | 2012-10-04 |
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ID=44848487
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2012/073226 WO2012130144A1 (en) | 2011-03-30 | 2012-03-29 | Hydraulically-controlled multi-switch valve and positioning instrument therefor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202023535U (en) |
| WO (1) | WO2012130144A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105649575A (en) * | 2015-12-28 | 2016-06-08 | 中国石油天然气股份有限公司 | Water-finding switch |
| CN108086946A (en) * | 2018-01-18 | 2018-05-29 | 江苏航天鸿鹏数控机械有限公司 | Gas well induced flow switch valve |
| CN110685640A (en) * | 2019-11-12 | 2020-01-14 | 陈爱民 | Switching sliding sleeve device for oil and gas exploitation, oil and gas exploitation tool and switching method for wall body through hole of oil and gas exploitation tool |
| CN111188591A (en) * | 2020-03-20 | 2020-05-22 | 山东普瑞思德石油技术有限公司 | Water control device |
| CN111677481A (en) * | 2020-06-08 | 2020-09-18 | 辽宁新华仪器有限公司 | High-pressure oil drainage tool |
| CN114837612A (en) * | 2022-04-22 | 2022-08-02 | 中海油能源发展股份有限公司 | Diameter-variable sliding sleeve opening and closing tool |
| CN115853466A (en) * | 2023-01-03 | 2023-03-28 | 西南石油大学 | But unlimited level fracturing sliding sleeve of full latus rectum of repeated switch |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202023535U (en) * | 2011-03-30 | 2011-11-02 | 克拉玛依特隆油田技术服务有限责任公司 | Hydraulic-control repeated on-off valve and locating instrument of same |
| CN103573240B (en) * | 2012-08-02 | 2016-05-11 | 中国石油天然气股份有限公司 | Hydraulic fracturing sliding sleeve opening and closing tool |
| CN104790910B (en) * | 2015-05-06 | 2017-08-25 | 克拉玛依特隆石油技术有限公司 | Oil field hydraulic controls multiple switching circulating valve and unlatching, closes instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105649575A (en) * | 2015-12-28 | 2016-06-08 | 中国石油天然气股份有限公司 | Water-finding switch |
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| CN108086946B (en) * | 2018-01-18 | 2024-02-20 | 江苏航天鸿鹏数控机械有限公司 | Gas well blowout inducing switch valve |
| CN110685640A (en) * | 2019-11-12 | 2020-01-14 | 陈爱民 | Switching sliding sleeve device for oil and gas exploitation, oil and gas exploitation tool and switching method for wall body through hole of oil and gas exploitation tool |
| CN110685640B (en) * | 2019-11-12 | 2024-06-04 | 陈爱民 | Switching sliding sleeve device for oil gas exploitation, oil gas exploitation tool and switching method of wall body through hole of oil gas exploitation tool |
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| CN111677481A (en) * | 2020-06-08 | 2020-09-18 | 辽宁新华仪器有限公司 | High-pressure oil drainage tool |
| CN114837612A (en) * | 2022-04-22 | 2022-08-02 | 中海油能源发展股份有限公司 | Diameter-variable sliding sleeve opening and closing tool |
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| CN115853466A (en) * | 2023-01-03 | 2023-03-28 | 西南石油大学 | But unlimited level fracturing sliding sleeve of full latus rectum of repeated switch |
| CN115853466B (en) * | 2023-01-03 | 2024-05-24 | 西南石油大学 | Full-drift-diameter infinite-stage fracturing sliding sleeve capable of being repeatedly opened and closed |
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