WO2013123762A1 - Multi-stage pump cylinder hydraulic self-sealing plunger oil-well pump - Google Patents

Multi-stage pump cylinder hydraulic self-sealing plunger oil-well pump Download PDF

Info

Publication number
WO2013123762A1
WO2013123762A1 PCT/CN2012/079806 CN2012079806W WO2013123762A1 WO 2013123762 A1 WO2013123762 A1 WO 2013123762A1 CN 2012079806 W CN2012079806 W CN 2012079806W WO 2013123762 A1 WO2013123762 A1 WO 2013123762A1
Authority
WO
WIPO (PCT)
Prior art keywords
fixed
pump cylinder
fishing
pump
versail
Prior art date
Application number
PCT/CN2012/079806
Other languages
French (fr)
Chinese (zh)
Inventor
徐金超
李娟�
李举辉
韩修廷
梁宏宝
郭辛阳
张明
杨文哲
Original Assignee
大庆大华宏业石油工程技术有限公司
中国石油大学(华东)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 大庆大华宏业石油工程技术有限公司, 中国石油大学(华东) filed Critical 大庆大华宏业石油工程技术有限公司
Publication of WO2013123762A1 publication Critical patent/WO2013123762A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1002—Ball valves

Definitions

  • the invention relates to the technical field of oil field exploitation, in particular to a multi-stage pump cylinder hydraulic self-sealing plunger pump. Background technique
  • rod plunger pumping In the field of oilfield exploitation, the use of rod plunger pumping is one of the traditional lifting methods of the world oil industry, and it is also the dominant artificial lifting method to date.
  • the first stage of the development of rod plunger pumping technology is the bushing type piston pump, the second stage is the whole barrel piston pump, the third stage is the hydraulic self-sealing plunger pump, and the hydraulic pump and plunger are used.
  • the current hydraulic self-sealing plunger pump In combination with the realization of sealing, the current hydraulic self-sealing plunger pump has achieved ultra-low leakage, ultra-low wear resistance and ultra-high pumping effect.
  • the plunger pump working underground has a short service life due to the long-term eccentric wear of the plunger and the pump cylinder.
  • the fixed Versail is also easy to lose its effect under the wear of the sand or in the ternary drive well. Therefore, the pump cylinder and the fixed Versal need to be replaced regularly.
  • due to the replacement of the pump cylinder and the installation of the valve it takes time and effort to greatly increase the cost of crude oil exploitation. Summary of the invention
  • the present invention provides a multi-stage pump cylinder hydraulic self-sealing plunger pump, which is capable of failing after the fixed Versail and the pump cylinder are worn out. It is not necessary to replace the failed fixed Versail to enable the pump to continue pumping oil, and it is not necessary to start the operation of the pipeline, which reduces the workload of underground operations and saves the cost of crude oil exploitation.
  • the technical solution of the present invention is: a multi-stage pump cylinder hydraulic self-sealing plunger pump, comprising a fixed valve, a plunger, an upper pump cylinder and a lower pump cylinder, and a coupling between the lower pump cylinder and the fixed Versail Connecting, wherein the oil pump further comprises a fishing-type fixed Versal, wherein the inner side of the coupling has a T-shaped boss in a circumferential direction thereof.
  • the upper part of the fixed Versail is provided with a support frame connected with the fishing-type fixed Verne.
  • the outer circumference of the lower end of the support frame is provided with a groove matching the T-shaped boss, and the lower part of the groove is provided with a fixed claw.
  • the upper surface of the liquid outlet hole is provided with a liquid outlet groove, and the liquid outlet hole is matched with the fixed claw.
  • the oil pump further comprises a connecting rod
  • the connecting rod is arranged above the fishing-type fixed Versail and is connected with the upper part of the movable fixed Versail, and the outer circumference of the connecting rod has a bottom with the bottom of the plunger
  • the external thread of the thread is matched, and the outer circumference of the connecting rod is further provided with a groove, and the upper part of the groove is formed with a fishing shoulder.
  • the multi-stage pump cylinder hydraulic self-sealing plunger pump further comprises a fishing head, and the bottom of the fishing head is provided with an inwardly protruding fishing claw, and the fishing claw cooperates with the fishing shoulder.
  • a seal ring is arranged between the outer portion of the fishable fixed Versail and the upper pump cylinder.
  • the invention mainly solves the problems that the existing multi-stage pump cylinder hydraulic self-sealing plunger pump cylinder has a short service life, and the lower oil pipe operation is required when the pump cylinder is replaced.
  • the invention has the following beneficial effects: Since the above solution is adopted, when the fixed Versail can not continue working due to wear, a fishing can be fixed in the upper pump cylinder above the fixed Versail, by making the fishing type fixed The seal is sealed between the upper and lower cylinders so that the plunger can continue to operate in the upper pump section. Therefore, the time for replacing the pump tubing and fixing the valve is saved, and the downhole working workload is reduced compared with the original ordinary pump, thereby saving the crude oil mining cost.
  • FIG. 1 is a schematic structural view of a multi-stage pump cylinder hydraulic self-sealing plunger pump according to the present invention
  • Figure 2 is a schematic view showing the structure of the salvage type fixed Versail
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
  • a multi-stage pump cylinder hydraulic self-sealing plunger pump includes a fixed Versal 1, a plunger 9.
  • the upper pump cylinder 8 and the lower pump cylinder 3 are connected by a pump cylinder coupling 5, and the plunger 9 is a hydraulic self-sealing plunger.
  • the fixed Versail 1 is disposed under the lower pump cylinder 3, and the lower pump cylinder 3 is fixed.
  • the joints 1 are connected by a coupling 2, and the inner side of the inner side of the coupling 2 is provided with a T-shaped boss 11 in the circumferential direction, that is, when the lower pump cylinder 3 and the fixed Versal 1 are connected by the coupling 2, the coupling 2
  • the T-shaped boss 11 is disposed between the bottom of the lower pump cylinder 3 and the upper portion of the fixed Versail 1 and protrudes inward.
  • the multi-stage pump cylinder self-sealing plunger pump further includes a support frame 4 and a fishing-type fixed Versal 7.
  • the support frame 4 is disposed inside the connected upper pump cylinder 8 and the lower pump cylinder 3 and is disposed above the fixed Versal 1, and the fishing-type fixed Versail 7 is disposed inside the upper pump cylinder 8 and is supported Above the frame 4, the upper portion of the support frame 4 is screwed to the lower end of the fishing-type fixed Versal 7, and the outer circumferential direction of the lower end of the support frame 4 is provided with a groove matching the T-shaped boss 11, and the lower end portion of the support frame 4 is further provided.
  • the fixing claws 12 There are fixed claws 12 which are disposed under the grooves, and the fixing claws 12 may be two or three, which are evenly distributed in the circumferential direction of the support frame 4.
  • the upper surface of the liquid outlet of the fixed Versail 1 is provided with a liquid outlet groove 10, and the liquid discharge hole groove 10 is matched with the fixing claw 12, so that the fixing claw 12 can be inserted into the liquid outlet hole 10 , the fishing-type fixed Versal 7 is fixed in the circumferential direction to prevent the fishing-type fixed Versail 7 from rotating; meanwhile, the cross-sectional area of the fixed claw 12 is smaller than the opening of the liquid outlet hole, and the fixing claw 12 is inserted into the liquid outlet hole. After the orifice, it will only hinder the flow of some of the liquid in the outlet, and does not affect the normal operation of the pump.
  • the upper portion of the fishing rod is connected with a connecting rod 13 , and the outer circumference of the connecting rod 13 has an external thread matched with the internal thread of the bottom of the plunger 9 , so that the canel 7 can be fixed and the support frame 4 can be fixed. Together, it is connected to the bottom of the plunger 9, and the cooperation between the fixed claw 12 and the liquid outlet groove 10 ensures the screwing of the screw between the plunger 9 and the connecting rod 13.
  • the outer circumference of the connecting rod 13 is further provided with a groove which extends upward and projects outward to form a fishing shoulder 15.
  • the hydraulic self-sealing plunger pump further includes a fishing head 14, the bottom of the fishing head 14 is provided with an inwardly protruding fishing claw 16, and the fishing claw 16 cooperates with the fishing shoulder 15 to fix the canel in the fishing type 7
  • the fishing head 14 can be salvaged together with the support frame 4 by means of the fishing head 14.
  • a seal ⁇ 6 is arranged between the outer portion of the cantilever-fixed Versal 7 and the upper pump cylinder 8, and the seal ring 6 is a 0-type seal ring, which can ensure that the external and upper pump cylinders of the Versail 7 can be fixed by the fishing rod. Static seal and reciprocating seal between.
  • the plunger 9 can be first used. After taking out, the fishing-type fixed Versail 7 and the support frame 4 are connected to the bottom of the plunger 9 through the connecting rod 13 and into the oil well, and the support frame 4 is further lowered with the cantilever-fixed Versail 7 and the support frame 4.
  • the bottom fixing claw 12 is inserted into the liquid outlet groove 10 of the Versail 1, and the groove above the fixing claw 12 is engaged with the T-shaped boss 11 inside the coupling 2, so that the support frame 4 is fixed to the column.
  • the spare fishing head 14 can be lowered, and the fishing rod 16 and the connecting rod at the bottom of the fishing head 14 can be passed. 13
  • the upper fishing shoulder 15 cooperates to salvage the fishing-type fixed Versal 7 and the support frame 4, since the support frame 4 is screwed to the fishing-type fixed Versail, by unscrewing the support frame 4 has failed
  • the new cantilever-fixed Versail 7 and the support frame 4 can be re-introduced into the oil well and lowered to the original fixed position.
  • the plunger 9 can continue to operate normally in the upper section of the upper pump barrel 8.
  • the invention provides a fishing-type fixed Versail and a support frame in the original oil pump, and is equipped with a connecting rod and a fishing head, so that the multi-stage pump cylinder hydraulic self-sealing plunger pump fails after the fixed Versail and the pump barrel are worn out. , can easily and timely replace the new canned fixed Versail, can ensure that the pump continues to pump oil, and It is not necessary to take off the oil pipe and fix the valve, which saves the time and cost of replacing the pump tube and fixing the valve, reducing the workload of underground operation and saving the cost of crude oil. It is to be understood that the above embodiments are merely exemplary embodiments employed to explain the principles of the invention, but the invention is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and scope of the invention. These modifications and improvements are also considered to be within the scope of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

A multi-stage pump cylinder hydraulic self-sealing plunger oil-well pump comprises a fixed valve (1), a plunger (9), an upper pump cylinder (8) and a lower pump cylinder (3). The lower pump cylinder (3) and the fixed valve (1) are connected through a coupling (2). The oil-well pump also comprises a salvable fixed valve (7). A T-shaped boss (11) is provided in a circumferential direction on a middle portion of the inner side of the coupling (2). An upper portion of the fixed valve (1) is provided with a support frame (4) connected to the salvable fixed valve (7), a groove fitting the T-shaped boss (11) is provided in a circumferential direction on the outside of a lower end of the support frame (4), and a fixed claw (12) is provided on a lower portion of the groove. An upper surface of a liquid hole on the upper portion of the fixed valve (1) is provided with a liquid hole groove (10), and the liquid hole groove (10) fits the fixed claw (12). When the oil-well pump fails because the fixed valve and the pump cylinder are worn, the salvable fixed valve (7) can be descended, and an oil pipeline and the fixed valve do not need to be pulled out, thereby reducing the underground working time and the crude oil extraction cost.

Description

多级泵筒液压自封柱塞抽油泵  Multi-stage pump cylinder hydraulic self-sealing plunger pump
技术领域 Technical field
本发明涉及油田开采技术领域， 具体的说是一种多级泵筒液压自封柱塞抽 油泵。 背景技术  The invention relates to the technical field of oil field exploitation, in particular to a multi-stage pump cylinder hydraulic self-sealing plunger pump. Background technique
在油田开采领域中， 采用有杆柱塞泵抽油是世界石油工业传统的举升方式 之一， 也是迄今为止占主导地位的人工举升方式。 有杆柱塞泵抽油技术发展的 第一阶段是衬套式柱塞泵， 第二阶段为整筒式柱塞泵， 第三阶段为液压自封柱 塞泵， 其釆用液压泵与柱塞配合实现密封， 目前的液压自封柱塞泵已经达到了 超低漏失、 超低磨阻、 超高泵效的效果。  In the field of oilfield exploitation, the use of rod plunger pumping is one of the traditional lifting methods of the world oil industry, and it is also the dominant artificial lifting method to date. The first stage of the development of rod plunger pumping technology is the bushing type piston pump, the second stage is the whole barrel piston pump, the third stage is the hydraulic self-sealing plunger pump, and the hydraulic pump and plunger are used. In combination with the realization of sealing, the current hydraulic self-sealing plunger pump has achieved ultra-low leakage, ultra-low wear resistance and ultra-high pumping effect.
然而， 在井下工作的柱塞泵， 由于柱塞与泵筒的长期偏磨导致泵筒使用寿 命短， 固定凡尔也容易在砂子的磨损下或在三元驱油井中结垢而失去其作用， 因此泵筒及固定凡尔需要定期更换。 但是， 由于更换泵筒及固定凡尔需起下油 管作业， 费时费力， 极大的增加了原油开采成本。 发明内容  However, the plunger pump working underground has a short service life due to the long-term eccentric wear of the plunger and the pump cylinder. The fixed Versail is also easy to lose its effect under the wear of the sand or in the ternary drive well. Therefore, the pump cylinder and the fixed Versal need to be replaced regularly. However, due to the replacement of the pump cylinder and the installation of the valve, it takes time and effort to greatly increase the cost of crude oil exploitation. Summary of the invention
为了克服现有技术中上述的不足， 本发明提供一种多级泵筒液压自封柱塞 抽油泵， 该多级泵筒液压自封柱塞抽油泵在固定凡尔与泵筒磨损后失效时， 可 不用更换失效的固定凡尔而能够使抽油泵继续抽油， 不必起下油管作业， 减少 了井下作业工作量， 节省了原油开采成本。  In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a multi-stage pump cylinder hydraulic self-sealing plunger pump, which is capable of failing after the fixed Versail and the pump cylinder are worn out. It is not necessary to replace the failed fixed Versail to enable the pump to continue pumping oil, and it is not necessary to start the operation of the pipeline, which reduces the workload of underground operations and saves the cost of crude oil exploitation.
本发明的技术方案是：一种多级泵筒液压自封柱塞抽油泵，包括固定凡尔、 柱塞、 上泵筒和下泵筒， 所述下泵筒与固定凡尔之间通过接箍连接， 其中， 该 抽油泵还包括可捞式固定凡尔，所述接箍内侧中部圓周方向设有 T形凸台， 所 述固定凡尔上部设有与可捞式固定凡尔相连的支撑架， 支撑架下端外部圆周 方向设有与 T 形凸台相配合的凹槽， 凹槽下部设有固定爪， 所述固定凡尔上 部的出液孔上平面设有出液孔凹槽， 所述出液孔凹槽与固定爪相配合。 The technical solution of the present invention is: a multi-stage pump cylinder hydraulic self-sealing plunger pump, comprising a fixed valve, a plunger, an upper pump cylinder and a lower pump cylinder, and a coupling between the lower pump cylinder and the fixed Versail Connecting, wherein the oil pump further comprises a fishing-type fixed Versal, wherein the inner side of the coupling has a T-shaped boss in a circumferential direction thereof. The upper part of the fixed Versail is provided with a support frame connected with the fishing-type fixed Verne. The outer circumference of the lower end of the support frame is provided with a groove matching the T-shaped boss, and the lower part of the groove is provided with a fixed claw. The upper surface of the liquid outlet hole is provided with a liquid outlet groove, and the liquid outlet hole is matched with the fixed claw.
优选的是， 该抽油泵还包括有连接杆， 所述连接杆设置在可捞式固定凡尔 上方并与所迷可捞式固定凡尔上部连接， 连接杆外圆周有与柱塞底部的内螺纹 相配合的外螺纹， 且连接杆外部周向还设有凹槽， 凹槽上部形成有打捞台肩。  Preferably, the oil pump further comprises a connecting rod, the connecting rod is arranged above the fishing-type fixed Versail and is connected with the upper part of the movable fixed Versail, and the outer circumference of the connecting rod has a bottom with the bottom of the plunger The external thread of the thread is matched, and the outer circumference of the connecting rod is further provided with a groove, and the upper part of the groove is formed with a fishing shoulder.
优选该多级泵筒液压自封柱塞抽油泵还包括打捞头， 所述打捞头底部设有 向内凸出的打捞爪， 所述打捞爪与打捞台肩相配合。  Preferably, the multi-stage pump cylinder hydraulic self-sealing plunger pump further comprises a fishing head, and the bottom of the fishing head is provided with an inwardly protruding fishing claw, and the fishing claw cooperates with the fishing shoulder.
优选的是， 所述可捞式固定凡尔外部与上泵筒之间设有密封圈。  Preferably, a seal ring is arranged between the outer portion of the fishable fixed Versail and the upper pump cylinder.
本发明主要解决现有的多级泵筒液压自封柱塞泵泵筒使用寿命短、 而更换 泵筒时需起下油管作业的问题。  The invention mainly solves the problems that the existing multi-stage pump cylinder hydraulic self-sealing plunger pump cylinder has a short service life, and the lower oil pipe operation is required when the pump cylinder is replaced.
本发明具有如下有益效果： 由于采取上述方案， 当固定凡尔由于磨损不能 继续工作时， 可以在固定凡尔上方的上泵筒中再设一个可捞式固定凡尔， 通过 使可捞式固定凡尔与上泵筒之间密封， 使得柱塞可以在上泵筒段继续工作。 因 此， 节省了起下油管更换泵筒及固定凡尔的时间， 与原有的普通抽油泵相比减 少了井下作业工作量， 节约了原油开采成本。 附图说明  The invention has the following beneficial effects: Since the above solution is adopted, when the fixed Versail can not continue working due to wear, a fishing can be fixed in the upper pump cylinder above the fixed Versail, by making the fishing type fixed The seal is sealed between the upper and lower cylinders so that the plunger can continue to operate in the upper pump section. Therefore, the time for replacing the pump tubing and fixing the valve is saved, and the downhole working workload is reduced compared with the original ordinary pump, thereby saving the crude oil mining cost. DRAWINGS
图 1是本发明多级泵筒液压自封柱塞抽油泵的结构示意图；  1 is a schematic structural view of a multi-stage pump cylinder hydraulic self-sealing plunger pump according to the present invention;
图 2是打捞可捞式固定凡尔时的结构示意图；  Figure 2 is a schematic view showing the structure of the salvage type fixed Versail;
图 3是图 2中的 A-A剖面图。  Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
图中： 1-固定凡尔， 2-接箍， 3-下泵筒， 4-支撑架， 5-泵筒接箍， 6-密封圈， 7-可捞式固定凡尔， 8-上泵筒， 9-柱塞， 10-出液孔凹槽， 11-T 形凸台， 12-固 定爪， 13-连接杆， 14-打捞头， 15 -打捞台肩， 16-打捞爪。 具体实施方式 下面结合附图对本发明多级泵筒液压自封柱塞抽油泵作进一步说明： 如图 1、 图 2所示， 一种多级泵筒液压自封柱塞抽油泵， 包括固定凡尔 1、 柱塞 9、 上泵筒 8和下泵筒 3。 所述上泵筒 8和下泵筒 3之间通过泵筒接箍 5 连接， 柱塞 9为液压自封柱塞， 所述固定凡尔 1设置在下泵筒 3下方， 下泵筒 3与固定凡尔 1之间通过接箍 2连接， 所述接箍 2内侧中部圓周方向设有 T形 凸台 11， 即当用接箍 2连接下泵筒 3与固定凡尔 1后， 接箍 2中的 T形凸台 11设置在下泵筒 3底部及固定凡尔 1上部之间并向内部凸出。 In the picture: 1-Fixed Versail, 2-clamp, 3-down pump, 4-support frame, 5-pump coupling, 6-seal, 7-fishing fixed Versal, 8-up pump Cartridge, 9-plunger, 10-outlet groove, 11-T boss, 12-claw, 13-link, 14-fishing head, 15 - salvage shoulder, 16-fishing claw. detailed description The multi-stage pump cylinder hydraulic self-sealing plunger pump of the present invention will be further described below with reference to the accompanying drawings: As shown in Fig. 1 and Fig. 2, a multi-stage pump cylinder hydraulic self-sealing plunger pump includes a fixed Versal 1, a plunger 9. Upper pump cylinder 8 and lower pump cylinder 3. The upper pump cylinder 8 and the lower pump cylinder 3 are connected by a pump cylinder coupling 5, and the plunger 9 is a hydraulic self-sealing plunger. The fixed Versail 1 is disposed under the lower pump cylinder 3, and the lower pump cylinder 3 is fixed. The joints 1 are connected by a coupling 2, and the inner side of the inner side of the coupling 2 is provided with a T-shaped boss 11 in the circumferential direction, that is, when the lower pump cylinder 3 and the fixed Versal 1 are connected by the coupling 2, the coupling 2 The T-shaped boss 11 is disposed between the bottom of the lower pump cylinder 3 and the upper portion of the fixed Versail 1 and protrudes inward.
所述多级泵筒自封柱塞抽油泵还包括有支撑架 4和可捞式固定凡尔 7。 所 述支撑架 4设置在连接后的上泵筒 8和下泵筒 3内部并设于所述固定凡尔 1上 方， 所述可捞式固定凡尔 7设置在上泵筒 8内部并处于支撑架 4上方， 支撑架 4上部与可捞式固定凡尔 7的下端螺纹连接， 支撑架 4下端外部圆周方向设有 与 T形凸台 11相配合的凹槽， 支撑架 4的下端部还设有固定爪 12， 所述固定 爪 12设置在凹槽下方， 固定爪 12可以为两个或三个， 沿支撑架 4的圓周方向 均布。所述固定凡尔 1上部的出液孔上平面设有出液孔凹槽 10, 所述出液孔凹 槽 10与固定爪 12相配合， 这样固定爪 12可以插入出液孔凹槽 10内， 在圓周 方向固定住可捞式固定凡尔 7， 以防止可捞式固定凡尔 7旋转； 同时， 固定爪 12的截面面积小于出液孔的孔口， 在固定爪 12插入出液孔的孔口后， 只会对 出液孔中部分液体的流动起到阻碍作用， 并不影响抽油泵的正常工作。  The multi-stage pump cylinder self-sealing plunger pump further includes a support frame 4 and a fishing-type fixed Versal 7. The support frame 4 is disposed inside the connected upper pump cylinder 8 and the lower pump cylinder 3 and is disposed above the fixed Versal 1, and the fishing-type fixed Versail 7 is disposed inside the upper pump cylinder 8 and is supported Above the frame 4, the upper portion of the support frame 4 is screwed to the lower end of the fishing-type fixed Versal 7, and the outer circumferential direction of the lower end of the support frame 4 is provided with a groove matching the T-shaped boss 11, and the lower end portion of the support frame 4 is further provided. There are fixed claws 12 which are disposed under the grooves, and the fixing claws 12 may be two or three, which are evenly distributed in the circumferential direction of the support frame 4. The upper surface of the liquid outlet of the fixed Versail 1 is provided with a liquid outlet groove 10, and the liquid discharge hole groove 10 is matched with the fixing claw 12, so that the fixing claw 12 can be inserted into the liquid outlet hole 10 , the fishing-type fixed Versal 7 is fixed in the circumferential direction to prevent the fishing-type fixed Versail 7 from rotating; meanwhile, the cross-sectional area of the fixed claw 12 is smaller than the opening of the liquid outlet hole, and the fixing claw 12 is inserted into the liquid outlet hole. After the orifice, it will only hinder the flow of some of the liquid in the outlet, and does not affect the normal operation of the pump.
所述可捞式固定凡尔 7上部连接有连接杆 13， 连接杆 13外圓周有与柱塞 9底部的内螺纹相配合的外螺纹， 从而可将可捞式固定凡尔 7与支撑架 4一同 连接在柱塞 9底部， 而固定爪 12与出液孔凹槽 10之间的配合能保证柱塞 9与 连接杆 13之间的螺纹旋合安全。 连接杆 13外部周向还设有凹槽， 凹槽向上延 伸并向外凸出形成打捞台肩 15。 该液压自封柱塞抽油泵还包括打捞头 14， 所 述打捞头 14底部设有向内凸出的打捞爪 16, 所述打捞爪 16与打捞台肩 15相 配合， 在可捞式固定凡尔 7失效时可采用打捞头 14将可捞式固定凡尔 7连同 支撑架 4一起打捞出来。 所述可捞式固定凡尔 7外部与上泵筒 8之间设有密封圏 6， 所述密封圈 6 为 0型密封圈，能保证可捞式固定凡尔 7外部与上泵筒 8之间的静密封和往复 运动密封。 The upper portion of the fishing rod is connected with a connecting rod 13 , and the outer circumference of the connecting rod 13 has an external thread matched with the internal thread of the bottom of the plunger 9 , so that the canel 7 can be fixed and the support frame 4 can be fixed. Together, it is connected to the bottom of the plunger 9, and the cooperation between the fixed claw 12 and the liquid outlet groove 10 ensures the screwing of the screw between the plunger 9 and the connecting rod 13. The outer circumference of the connecting rod 13 is further provided with a groove which extends upward and projects outward to form a fishing shoulder 15. The hydraulic self-sealing plunger pump further includes a fishing head 14, the bottom of the fishing head 14 is provided with an inwardly protruding fishing claw 16, and the fishing claw 16 cooperates with the fishing shoulder 15 to fix the canel in the fishing type 7 In the event of failure, the fishing head 14 can be salvaged together with the support frame 4 by means of the fishing head 14. A seal 圏6 is arranged between the outer portion of the cantilever-fixed Versal 7 and the upper pump cylinder 8, and the seal ring 6 is a 0-type seal ring, which can ensure that the external and upper pump cylinders of the Versail 7 can be fixed by the fishing rod. Static seal and reciprocating seal between.
该抽油泵在开始工作时， 可以先不安装可捞式固定凡尔 7及支撑架 4， 当 该抽油泵中的固定凡尔 1由于磨损等原因失效不能继续工作时， 可以先将柱塞 9取出，然后将可捞式固定凡尔 7与支撑架 4通过连接杆 13连接在柱塞 9底部 下入油井中， 随着可捞式固定凡尔 7与支撑架 4的进一步下降， 支撑架 4底部 的固定爪 12插入固定凡尔 1中的出液孔凹槽 10内， 同时固定爪 12上方的凹 槽与接箍 2内侧的 T形凸台 11相卡合， 使得支撑架 4固定在柱塞 9与固定凡 尔 1之间，由于可捞式固定凡尔 7与支撑架 4是通过螺紋连接在一起的，因此， 能有效防止可捞式固定凡尔 7在周向力的作用下旋转， 如图 3所示。 通过柱塞 9与可捞式固定凡尔 7及上泵筒 8的配合（由于可捞式固定凡尔 7与上泵筒 8 之间密封， 可捞式固定凡尔 7能够起到固定凡尔 1的作用， 即通过可捞式固定 凡尔 7替代固定凡尔 1 ),柱塞 9可以继续在上泵筒 8段继续正常工作进行抽油， 避免了因固定凡尔 1磨损等原因失效而导致的抽油泵不能继续工作， 同时节省 了起下油管更换泵筒和固定凡尔 1的时间， 大大延长了抽油泵的使用寿命。  When the oil pump starts to work, it is not necessary to install the fishing-type fixed Versal 7 and the support frame 4. When the fixed Versail 1 in the oil pump fails to work due to wear and the like, the plunger 9 can be first used. After taking out, the fishing-type fixed Versail 7 and the support frame 4 are connected to the bottom of the plunger 9 through the connecting rod 13 and into the oil well, and the support frame 4 is further lowered with the cantilever-fixed Versail 7 and the support frame 4. The bottom fixing claw 12 is inserted into the liquid outlet groove 10 of the Versail 1, and the groove above the fixing claw 12 is engaged with the T-shaped boss 11 inside the coupling 2, so that the support frame 4 is fixed to the column. Between the plug 9 and the fixed Versail 1, since the fishing-type fixed Versal 7 and the support frame 4 are screwed together, it is possible to effectively prevent the fishing-type fixed Versal 7 from rotating under the action of the circumferential force, such as Figure 3 shows. Through the plunger 9 and the fishing type fixed Versail 7 and the upper pump barrel 8 (due to the seal between the cantilever fixed Versail 7 and the upper pump barrel 8, the canned fixed Versail 7 can be fixed to the Versail The function of 1 is to replace the Versail 1 by means of a fishing-type fixed Versal 7), and the plunger 9 can continue to pump normally in the upper section of the upper pump cylinder to avoid oil failure due to the fixation of the fixed Versail 1 and the like. The resulting oil pump can not continue to work, and saves the time for the lower oil pipe to replace the pump cylinder and the fixed Versail 1, greatly extending the service life of the oil pump.
当可捞式固定凡尔 7上的螺纹因为磨损等原因不能与柱塞 9连接时， 如图 2所示， 可下入备用的打捞头 14，通过打捞头 14底部的打捞爪 16与连接杆 13 上部的打捞台肩 15相配合将可捞式固定凡尔 7与支撑架 4打捞出来， 由于支 撑架 4与可捞式固定凡尔为螺纹连接， 通过拧下支撑架 4上已失效的可捞式固 定凡尔 7， 并在支撑架 4上更换新的可捞式固定凡尔 7后， 可将新的可捞式固 定凡尔 7与支撑架 4重新下入油井中并下降至原固定凡尔 1的上方， 柱塞 9可 以在上泵筒 8段继续正常工作。  When the thread on the fishing fixed Versail 7 cannot be connected to the plunger 9 due to wear or the like, as shown in FIG. 2, the spare fishing head 14 can be lowered, and the fishing rod 16 and the connecting rod at the bottom of the fishing head 14 can be passed. 13 The upper fishing shoulder 15 cooperates to salvage the fishing-type fixed Versal 7 and the support frame 4, since the support frame 4 is screwed to the fishing-type fixed Versail, by unscrewing the support frame 4 has failed After the fishing type is fixed to the Versail 7, and the new cantilever-fixed Versail 7 is replaced on the support frame 4, the new cantilever-fixed Versail 7 and the support frame 4 can be re-introduced into the oil well and lowered to the original fixed position. Above the Versal 1, the plunger 9 can continue to operate normally in the upper section of the upper pump barrel 8.
本发明通过在原抽油泵中设置可捞式固定凡尔与支撑架， 再配以连接杆以 及打捞头， 使得该多级泵筒液压自封柱塞抽油泵在固定凡尔与泵筒磨损后失效 时， 能方便、 及时的更换新的可捞式固定凡尔， 能够保证抽油泵持续抽油， 而 不必起下油管及固定凡尔， 节省了起下油管更换泵筒和固定凡尔的时间及费 用， 减少了井下作业工作量， 节约了原油的开釆成本。 可以理解的是， 以上实施方式仅仅是为了说明本发明的原理而采用的示例 性实施方式， 然而本发明并不局限于此。 对于本领域内的普通技术人员而言， 在不脱离本发明的精神和实质的情况下， 可以做出各种变型和改进， 这些变型 和改进也视为本发明的保护范围。 The invention provides a fishing-type fixed Versail and a support frame in the original oil pump, and is equipped with a connecting rod and a fishing head, so that the multi-stage pump cylinder hydraulic self-sealing plunger pump fails after the fixed Versail and the pump barrel are worn out. , can easily and timely replace the new canned fixed Versail, can ensure that the pump continues to pump oil, and It is not necessary to take off the oil pipe and fix the valve, which saves the time and cost of replacing the pump tube and fixing the valve, reducing the workload of underground operation and saving the cost of crude oil. It is to be understood that the above embodiments are merely exemplary embodiments employed to explain the principles of the invention, but the invention is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and scope of the invention. These modifications and improvements are also considered to be within the scope of the invention.

Claims

权 利 要 求 书 Claim
1、 一种多级泵筒液压自封柱塞抽油泵， 包括固定凡尔（1)、 柱塞（9)、 上泵筒 （8)和下泵筒 （3) ， 所述下泵筒 （3) 与固定凡尔 （1 )之间通过接箍1. A multi-stage pump cylinder hydraulic self-sealing plunger pump, comprising a fixed Versail (1), a plunger (9), an upper pump cylinder (8) and a lower pump cylinder (3), the lower pump cylinder (3) ) through the coupling between the fixed Versail (1)
(2)连接， 其特征在于： 该抽油泵还包括可捞式固定凡尔（7), 所述接箍（2) 内侧中部圓周方向设有 T形凸台 （11) ， 所述固定凡尔 （1)上部设有与可捞 式固定凡尔 （7)相连的支撑架（4)， 支撑架（4)下端外部圓周方向设有与 T 形凸台 （11)相配合的凹槽， 凹槽下部设有固定爪（12) ， 所述固定凡尔 （1 ) 上部的出液孔上平面设有出液孔凹槽（10) , 所述出液孔凹槽（10)与固定爪(2) The connection is characterized in that: the oil pump further comprises a fishing-type fixed Versail (7), and the coupling (2) has a T-shaped boss (11) in a circumferential direction of the inner middle portion, the fixed Versail (1) The upper part is provided with a support frame (4) connected to the fishing-type fixed Versail (7), and the outer circumference of the lower end of the support frame (4) is provided with a groove matching the T-shaped boss (11), concave The lower part of the groove is provided with a fixing claw (12), and the upper surface of the liquid outlet hole of the fixed Versal (1) is provided with a liquid outlet groove (10), the liquid discharge hole groove (10) and the fixed claw
(12)相配合。 (12) Matching.
2、 根据权利要求 1 所述的多级泵筒液压自封柱塞抽油泵， 其特征在于： 该抽油泵还包括有连接杆 （13) , 连接杆 （13)外圆周有与柱塞（9)底部的 内螺纹相配合的外螺纹， 且连接杆（13)外部周向还设有凹槽， 凹槽上部形成 有打捞台肩 （15) 。 2. The multi-stage pump cylinder hydraulic self-sealing plunger pump according to claim 1, wherein the oil pump further comprises a connecting rod (13), and the outer circumference of the connecting rod (13) has a plunger (9) The internal thread of the bottom is matched with the external thread, and the outer circumference of the connecting rod (13) is further provided with a groove, and the upper part of the groove is formed with a fishing shoulder (15).
3、 根据权利要求 2所述的多级泵筒液压自封柱塞抽油泵， 其特征在于： 该多级泵筒液压自封柱塞抽油泵还包括打捞头 （14) , 所述打捞头 （14)底部 设有向内凸出的打捞爪（16) ， 所述打捞爪（16)与打捞台肩 （15)相配合。 3. The multi-stage pump cylinder hydraulic self-sealing plunger pump according to claim 2, wherein: the multi-stage pump cylinder hydraulic self-sealing plunger pump further comprises a fishing head (14), the fishing head (14) The bottom is provided with an inwardly projecting fishing pawl (16) which cooperates with the fishing shoulder (15).
4、 根据权利要求 1-3之一所述的多级泵筒液压自封柱塞抽油泵， 其特征 在于： 所述可捞式固定凡尔 （7)外部与上泵筒 （8)之间设有密封圈 （6) 。 The multi-stage pump cylinder hydraulic self-sealing plunger pump according to any one of claims 1 to 3, characterized in that: the outer portion of the fishing-type fixed Versail (7) and the upper pump cylinder (8) are provided. There are sealing rings (6).
PCT/CN2012/079806 2012-02-22 2012-08-08 Multi-stage pump cylinder hydraulic self-sealing plunger oil-well pump WO2013123762A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210040145.5 2012-02-22
CN201210040145.5A CN102562546B (en) 2012-02-22 2012-02-22 Hydraulic self-sealed oil plunger pump with multistage pump cylinder

Publications (1)

Publication Number Publication Date
WO2013123762A1 true WO2013123762A1 (en) 2013-08-29

Family

ID=46408864

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/079806 WO2013123762A1 (en) 2012-02-22 2012-08-08 Multi-stage pump cylinder hydraulic self-sealing plunger oil-well pump

Country Status (2)

Country Link
CN (1) CN102562546B (en)
WO (1) WO2013123762A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102562546B (en) * 2012-02-22 2016-08-17 大庆大华宏业石油工程技术有限公司 Hydraulic self-sealed oil plunger pump with multistage pump cylinder
CN203499965U (en) * 2013-08-14 2014-03-26 大庆大华宏业石油工程技术有限公司 Double-layer self-sealing overlength stroke oil well pump
CN107218013A (en) * 2017-01-22 2017-09-29 宋丽梅 A kind of laddering synchronous oil recovery method and a kind of laddering multistage simultaneous pumping system pump

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4557668A (en) * 1985-01-09 1985-12-10 Jones William A Down hole pump having a gas release valve
CN2157333Y (en) * 1993-02-18 1994-02-23 新疆石油管理局重油开发公司 Oil injection stopping-up removing pump
CN2670628Y (en) * 2003-12-06 2005-01-12 王清 Multifunctional oil sucking pumps
CN102562546A (en) * 2012-02-22 2012-07-11 大庆大华宏业石油工程技术有限公司 Hydraulic self-sealed oil plunger pump with multistage pump cylinder
CN202441566U (en) * 2012-02-22 2012-09-19 大庆大华宏业石油工程技术有限公司 Hydraulic self-sealing plunger oil well pump with multi-stage pump barrels
CN202500752U (en) * 2012-03-03 2012-10-24 李辽江 Salvageable valve type oil well pump

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4478285A (en) * 1982-01-25 1984-10-23 Mas Mfg. Corp. Method and apparatus for removal of downhole well debris
CN2257570Y (en) * 1995-09-22 1997-07-09 董献民 Tubing extracting pump
CN2711410Y (en) * 2004-06-09 2005-07-20 大庆油田有限责任公司 Dowble fixation valve pump for deep well
CN2844499Y (en) * 2005-10-31 2006-12-06 王福勇 Many valves oil extraction pump
CN2830708Y (en) * 2005-11-11 2006-10-25 张铁人 High efficiencyenvironment protection oil-well pump
CN201144785Y (en) * 2007-11-21 2008-11-05 国营第三八八厂 Standing valve-salvageable tube-type gasproof oil-well pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4557668A (en) * 1985-01-09 1985-12-10 Jones William A Down hole pump having a gas release valve
CN2157333Y (en) * 1993-02-18 1994-02-23 新疆石油管理局重油开发公司 Oil injection stopping-up removing pump
CN2670628Y (en) * 2003-12-06 2005-01-12 王清 Multifunctional oil sucking pumps
CN102562546A (en) * 2012-02-22 2012-07-11 大庆大华宏业石油工程技术有限公司 Hydraulic self-sealed oil plunger pump with multistage pump cylinder
CN202441566U (en) * 2012-02-22 2012-09-19 大庆大华宏业石油工程技术有限公司 Hydraulic self-sealing plunger oil well pump with multi-stage pump barrels
CN202500752U (en) * 2012-03-03 2012-10-24 李辽江 Salvageable valve type oil well pump

Also Published As

Publication number Publication date
CN102562546A (en) 2012-07-11
CN102562546B (en) 2016-08-17

Similar Documents

Publication Publication Date Title
CN202520265U (en) Gas production well head device with metallic seals
CN204252931U (en) A kind of water injection packer
WO2013123762A1 (en) Multi-stage pump cylinder hydraulic self-sealing plunger oil-well pump
CN210152618U (en) Double-pump barrel tubular pump take-over production string
CN202706989U (en) Pressure regulating air vent valve
CN203626681U (en) Single-tube wellhead device for thermal recovery with pressure
CN208777944U (en) A kind of well cementation well head connection sealing device
CN203702064U (en) Wellhead oil pipe plugging device
CN109267970A (en) The integrated serialization DP technology of steam injection oil recovery and complete outfit
CN204283825U (en) A kind of novel mechanical grappling sucker rod pump
CN104265233B (en) Barrier film inflatable packer
RU168316U1 (en) DRILLING PUMP UNIT FOR OPERATIONAL COLUMNS OF SMALL DIAMETER
CN213087947U (en) Wellhead metal sealing device
CN205743833U (en) A kind of high pressure VR blocks up
CN209354701U (en) Ball-and-seat
CN208441803U (en) Low power unseals long packing element type well packer capable of flushing well
CN201546672U (en) Preset underground high pressure throttle
CN201679699U (en) Oil-well pump of four-proofing deep well
CN210829205U (en) Coiled tubing downhole choke
CN201614908U (en) Universal corrective energy saving oil-recovery well head device
CN204646167U (en) A kind of well mouth oil pipe plugging device
CN211851772U (en) One-way valve
CN218844274U (en) Open formula oil recovery sliding sleeve by force
CN204646166U (en) A kind of well mouth oil pipe plugging device
CN220849974U (en) Sand-proof oil pump capable of being cleaned well just

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12868973

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12868973

Country of ref document: EP

Kind code of ref document: A1