CN111236903B

CN111236903B - Pumping well pump lower injection agent mixing device

Info

Publication number: CN111236903B
Application number: CN202010062863.7A
Authority: CN
Inventors: 陈亮; 栾娟娟; 其他发明人请求不公开姓名
Original assignee: Shandong Saina Petroleum Technology Co Ltd
Current assignee: Shandong Saina Petroleum Technology Co., Ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2021-01-26
Anticipated expiration: 2040-01-19
Also published as: CN111236903A

Abstract

The invention relates to the technical field of oil well equipment and discloses a pumping well pump lower injection agent mixing device which comprises a connecting sleeve and an injection agent storage device, wherein the top of the connecting sleeve is fixedly communicated with an upper connector, a screw rod is movably sleeved in the upper connector, an upper hook is movably arranged at one end of the screw rod, which is positioned above the upper connector, and a fixing sleeve is movably sleeved in the connecting sleeve. This injection blending device under oil pumping well pump through being connected the screw rod with the sucker rod, with the screw rod, fly the gear, connecting sleeve's cooperation, the power that utilizes the beam-pumping unit drives the screw rod and carries out the up-and-down motion, and then makes fly the gear drive impeller device rotate, thereby make the oil on the beam-pumping unit area carry out abundant thoughtlessly with the medicament in impeller device department, improved the utilization efficiency of medicament, and the installation of device is fairly simple, need not to set up special power equipment, economic input is less.

Description

Pumping well pump lower injection agent mixing device

Technical Field

The invention relates to the technical field of oil well equipment, in particular to a blending device for an injection agent under a pump of an oil pumping well.

Background

When a heavy oil well pumps oil, friction is generated between the heavy oil and a sucker rod to make the sucker rod difficult to descend so that the sucker rod cannot pump oil normally, one method for solving the oil pumping difficulty of the heavy oil well is to add a viscosity reducer into a casing to reduce the viscosity of the heavy oil, but the viscosity reducer added from the casing cannot be fully mixed with well fluid, so that the added viscosity reducer does not achieve an ideal effect, and the problem of difficult oil pumping cannot be solved.

The current medicament adding mode is generally to add the viscosity reducer into an oil casing, the free settling of the viscosity reducer is utilized to mix with oil, the method is poor in mixing effect when in use, waste of a large amount of viscosity reducers is caused, some impeller devices with power are added between pipelines inside an oil well, the medicament is injected into the pipelines by using a pump firstly, after oil is brought into the pipelines from the bottom of the well, the medicament is mixed under the action of an impeller, the mixing effect of the device is improved, but when the device is used, the power device needs to supply power, a cable needs to be laid, the space in the oil well is small, and further the installation of the whole device is troublesome.

When the agent is pumped into the casing, the amount of the agent is ensured, but a time gap exists during oil pumping, so that the special pump needs to work at intervals, the special pump is easy to damage for a long time, and the working efficiency of the oil field during production is lowered.

Disclosure of Invention

The invention provides a blending device for an injection agent under a pump of an oil pumping well, which has the advantages of ensuring the blending effect without providing external power, along with simple installation, longer service life of equipment and high production efficiency of an oil field, and solves the problems in the background art.

The invention provides the following technical scheme: a device for mixing and blending an injection agent under a pump of an oil pumping well comprises a connecting sleeve and an injection agent storage device, wherein the top of the connecting sleeve is fixedly communicated with an upper connector, the inner part of the upper connector is movably sleeved with a screw rod, one end of the screw rod, which is positioned above the upper connector, is movably provided with an upper hook, the inner part of the connecting sleeve is movably sleeved with a fixed sleeve, the inner arm of the fixed sleeve is fixedly connected with a pore plate, the inner part of the fixed sleeve is provided with a communicating cavity, the inner part of the communicating cavity is movably provided with a movable sealing steel ball, the top of the fixed sleeve is communicated with a communicating seat communicated with the communicating cavity, the top of the communicating seat extends to the outer side of the connecting sleeve and is fixedly communicated with a liquid supply hose, the other end of the liquid supply hose is communicated with the side surface of the injection, the bottom of the mixing cylinder is fixedly communicated with a lower joint.

Preferably, the fixed cover of medial surface of mixing drum is equipped with the bearing, the fixed cover in inside of bearing is equipped with the rotary drum, the other end of screw rod runs through connecting sleeve and extends to the inside of mixing drum, and the surface screw thread installs and flies the gear, the external fixed surface cover that flies the gear is equipped with connecting sleeve, the external fixed surface of connecting sleeve is connected with the impeller device that the outside is connected with the rotary drum inner wall.

Preferably, the front surface of the pore plate is provided with a communicating hole, and the communicating hole is provided with a circular hole and an arc-shaped hole.

Preferably, the bottom of the communicating cavity is communicated with the interior of the mixing barrel, and the width value of the bottom of the communicating cavity is smaller than the diameter value of the movable sealing steel ball.

Preferably, one end of the screw rod, which is positioned inside the lower joint, is movably connected with a lower hook, the bottom of the lower hook is connected with the sucker rod, and the top of the upper hook is connected with the suspension connector.

The invention has the following beneficial effects:

1. this injection blending device under oil pumping well pump through being connected the screw rod with the sucker rod, with the screw rod, fly the gear, connecting sleeve's cooperation, the power that utilizes the beam-pumping unit drives the screw rod and carries out the up-and-down motion, and then makes fly the gear drive impeller device rotate, thereby make the oil on the beam-pumping unit area carry out abundant thoughtlessly with the medicament in impeller device department, improved the utilization efficiency of medicament, and the installation of device is fairly simple, need not to set up special power equipment, economic input is less.

2. This injection blending device under pump of oil pumping well, through the intercommunication chamber that sets up in fixed sleeve, the movable seal steel ball that sets up in the intercommunication chamber, and then when making the beam-pumping unit to pump oil toward the mixing drum in, the movable seal steel ball will receive bottom of the well pressure effect, make the injection in the injection storage device enter into the mixing drum with oil from the intercommunication chamber fast under the effect of gravity and mix, need not to install special pump, and simple structure, easily maintain, improve oil pumping efficiency.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present invention;

FIG. 2 is a perspective cross-sectional view of a structural fixing sleeve of the present invention;

FIG. 3 is a cross-sectional view of the interior of a rotating cylinder in accordance with the present invention.

In the figure: 1. connecting a sleeve; 2. an upper connector; 3. an upper hook; 4. an injectant storage device; 5. a liquid supply hose; 6. fixing the sleeve; 7. an orifice plate; 8. a communicating cavity; 9. a movable sealing steel ball; 10. a connecting sleeve; 11. a rotating cylinder; 12. a lower hook; 13. a lower joint; 14. a mixing drum; 15. a bearing; 16. a screw; 17. a communication base; 18. a fly gear; 19. an impeller device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The drawings in the embodiments of the invention: the different types of hatching in the figures are not given the national standards, do not require the material of the elements, and distinguish between cross-sectional views of the elements in the figures.

Referring to fig. 1-3, a pumping well pump injectant mixing device comprises a connecting sleeve 1 and an injectant storage device 4, wherein the top of the connecting sleeve 1 is fixedly communicated with an upper connector 2, a screw 16 is movably sleeved in the upper connector 2, an upper hook 3 is movably mounted at one end of the screw 16 above the upper connector 2, a fixed sleeve 6 is movably sleeved in the connecting sleeve 1, an inner arm of the fixed sleeve 6 is fixedly connected with a pore plate 7, a communication hole is formed in the front of the pore plate 7, the communication hole is provided with a circular hole and an arc-shaped hole, the mixed liquid is subjected to shearing forces in different directions by arranging the circular hole and the arc-shaped hole on the pore plate, so as to ensure the mixing effect, a communication cavity 8 is formed in the fixed sleeve 6, a movable sealing steel ball 9 is movably mounted in the communication cavity 8, a communication seat 17 communicated with the communication cavity 8 is communicated with the top, the top of the communicating seat 17 extends to the outer side of the connecting sleeve 1 and is fixedly communicated with a liquid supply hose 5, the other end of the liquid supply hose 5 is communicated with the side surface of the injection agent storage device 4, the bottom of the connecting sleeve 1 is fixedly communicated with a mixing barrel 14, the bottom of the communicating cavity 8 is communicated with the interior of the mixing barrel 14, the width value of the bottom of the communicating cavity 8 is smaller than the diameter value of the movable sealing steel ball 9, the movable sealing steel ball 9 is ensured not to fall at the bottom of the communicating cavity 8, a certain space is kept at the middle part and the upper part of the communicating cavity 8, the injection agent is favorably entered, the movable sealing steel ball 9 arranged in the communicating cavity 8 is passed through the communicating cavity 8 arranged in the fixed sleeve 6, and further when the oil pumping unit pumps the oil into the mixing barrel 14, the movable sealing steel ball 9 is under the pressure action of the bottom part, so that the injection agent in the injection agent storage device 4 rapidly enters the mixing barrel 14 from the communicating cavity 8 to, the special pump does not need to be installed, the structure is simple, the maintenance is easy, the oil pumping efficiency is improved, the bottom of the mixing cylinder 14 is fixedly communicated with the lower joint 13, the inner side surface of the mixing cylinder 14 is fixedly sleeved with the bearing 15, the rotating cylinder 11 is fixedly sleeved inside the bearing 15, the other end of the screw 16 penetrates through the connecting sleeve 1 and extends into the mixing cylinder 14, the outer surface of the screw is provided with the fly gear 18 in a threaded manner, the outer surface of the fly gear 18 is fixedly sleeved with the connecting sleeve 10, the fly gear 18 is arranged to enable the screw 16 not to be subjected to resistance when moving downwards, the outer surface of the connecting sleeve 10 is fixedly connected with the impeller device 19, the outer side of the impeller device is connected with the inner wall of the rotating cylinder 11, one end of the screw 16, which is positioned inside the lower joint 13, is movably connected with the lower hook 12, the bottom of the lower hook 12 is connected with the oil pumping rod, the top, through being connected screw rod 16 and sucker rod, with screw rod 16, fly gear 18, the cooperation of connecting sleeve 10, utilize the power of beam-pumping unit to drive screw rod 16 and carry out the up-and-down motion, and then make fly gear 18 drive impeller device 19 and rotate, thereby make the oil on the beam-pumping unit area carry out abundant thoughtlessly joining in marriage with the medicament in impeller device 19 department, improved the utilization efficiency of medicament, and the installation of device is fairly simple, need not to set up special power equipment, economic input is less.

The working principle is that when the oil pumping unit works, a hanger of the oil pumping unit is connected with an upper hook 3, when the oil pumping unit moves upwards, a screw rod 16 moves upwards at the moment, the movement of the screw rod 16 drives a fly gear 18 to rotate, the fly gear 18 drives a connecting sleeve 10 to rotate, so that an impeller device 19 is driven to rotate, when the oil pumping unit moves upwards, the screw rod 16 is connected with a sucker rod through a lower hook 12, so that oil in an oil well enters the inside of a rotating cylinder 11, at the moment, a movable sealing steel ball 9 moves above a communication cavity 8 under the action of the pressure of the lower part of the oil well, so that an injection agent in an injection agent storage device 4 cannot synchronously enter the communication cavity 8 and then enters a mixing cylinder 14 through the communication cavity 8 to be fully mixed with oil under the action of the impeller device 19, and meanwhile, when mixed liquid passes through the impeller device 19, when entering the inside of the fixed sleeve 6, the hollow fiber material collides with the orifice plate 7, thereby enhancing the mixing effect of the two.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pumping well pump down injectant blending device, includes adapter sleeve (1) and injectant storage device (4), its characterized in that: the connecting device is characterized in that the top of the connecting sleeve (1) is fixedly communicated with an upper connector (2), a screw rod (16) is movably sleeved in the upper connector (2), one end of the screw rod (16) above the upper connector (2) is movably provided with an upper hook (3), a fixing sleeve (6) is movably sleeved in the connecting sleeve (1), an orifice plate (7) is fixedly connected to the inner wall of the fixing sleeve (6), a communicating cavity (8) is formed in the fixing sleeve (6), a movable sealing steel ball (9) is movably installed in the communicating cavity (8), a communicating seat (17) communicated with the communicating cavity (8) is communicated with the top of the fixing sleeve (6), the top of the communicating seat (17) extends to the outer side of the connecting sleeve (1) and is fixedly communicated with a liquid supply hose (5), and the other end of the liquid supply hose (5) is communicated with the side face of an injection agent storage device (4), the bottom of the connecting sleeve (1) is fixedly communicated with a mixing cylinder (14), and the bottom of the mixing cylinder (14) is fixedly communicated with a lower joint (13).

2. The pump-down injectant mixing unit for the oil pumping well as defined in claim 1, wherein: the fixed cover of medial surface of hybrid cylinder (14) is equipped with bearing (15), the fixed cover in inside of bearing (15) is equipped with and rotates a section of thick bamboo (11), the other end of screw rod (16) runs through connecting sleeve (1) and extends to the inside of hybrid cylinder (14), and the surface thread installs and flies gear (18), the fixed surface cover that flies gear (18) is equipped with connecting sleeve (10), the fixed surface of connecting sleeve (10) is connected with outside and rotates impeller device (19) that a section of thick bamboo (11) inner wall is connected.

3. The pump-down injectant mixing unit for the oil pumping well as defined in claim 1, wherein: the front surface of the pore plate (7) is provided with a communicating hole, and the communicating hole is provided with a circular hole and an arc-shaped hole.

4. The pump-down injectant mixing unit for the oil pumping well as defined in claim 1, wherein: the bottom of the communicating cavity (8) is communicated with the interior of the mixing barrel (14), and the width value of the bottom of the communicating cavity (8) is smaller than the diameter value of the movable sealing steel ball (9).

5. The pump-down injectant mixing unit for the oil pumping well as defined in claim 1, wherein: the screw rod (16) is located inside one end swing joint of lower clutch (13) and has lower couple (12), the bottom of lower couple (12) is connected with the sucker rod, the top of going up couple (3) is connected with the suspension connector.