CN202148890U - Device for producing pressure pulse at wellhead of water injection well - Google Patents
Device for producing pressure pulse at wellhead of water injection well Download PDFInfo
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- CN202148890U CN202148890U CN201120217654U CN201120217654U CN202148890U CN 202148890 U CN202148890 U CN 202148890U CN 201120217654 U CN201120217654 U CN 201120217654U CN 201120217654 U CN201120217654 U CN 201120217654U CN 202148890 U CN202148890 U CN 202148890U
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- gate valve
- pressure
- water injection
- switch gate
- injection well
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Abstract
The utility model provides a device for producing pressure pulse at a wellhead of a water injection well, which belongs to the filed of petrochemical industries and comprises a blowout preventing pipe, a pressure gauge interface, a switch gate valve, a liquid outlet and a motor transmission mechanism. The switch gate valve is initially in a close state. Under the condition that a pump of the water injection well does not stop working, a computer (such as a PC) controls the motor transmission mechanism in a program control mode, the motor transmission mechanism controls the switch gate valve, and a pressure control type water distributing device underground utilizes an accurate pressure pulse signal produced by pressure drop at the wellhead and finishes actions corresponding to coded signals, thereby achieving the purpose of adjusting size of an water injection nozzle, reducing labor cost and improving reliability and accuracy simultaneously. The action of the switch gate valve is controlled by the program control type motor actuating mechanism, thereby being simple in operation. The motor transmission mechanism can be automatically started only by giving out corresponding instructions through computer softwares, and the corresponding instructions are given out in pre-set time.
Description
Technical field
The utility model belongs to petrochemical industry, is specifically related to a kind of device at water injection well well head generation pressure pulse, is used for producing pressure pulse in water injection well intelligence water distribution process at well head.
Background technology
In existing water injection well water distribution technology, mainly be to adopt the Purely mechanical injection well downhole flow regulator, control water distribution quantity, various, the complicated operation of its operation through changing water nozzle.Adopt intelligent decreasing water distribution method through the mode of sending pressure pulse the downhole intelligent injection well downhole flow regulator to be carried out Long-distance Control, regulate injection well downhole flow regulator water nozzle size through pulse signal, this method has shortened construction greatly and has done and higher reliability and safety arranged.The current ground installation of compression wave regulation and control water that utilizes adopts methods such as high-pressure pump supercharging mostly, needs high-pressure pump equipment, and trivial operations lacks the reliability and the degree of accuracy.
The patent No. is that 200410061228 patent discloses a kind of method with compression wave regulation and control seperated layer water injection; It is the interval quantity according to the water distribution of water injection well needs; On one group of voltage-controlled injection well downhole flow regulator that can receive the ground pressure signal, set the pressure code signal of position and action; The program that receives and carry out these signals is set, and the water injection string that the voltage-controlled injection well downhole flow regulator that possesses above-mentioned setting will be housed then is lowered in the water injection well, and makes that each injection well downhole flow regulator is positioned at corresponding interval on it; The water under high pressure of producing with the ground high-pressure pump is as pressure source, and through the valve on operating pressure source and the wellhead assembly, the voltage-controlled injection well downhole flow regulator of needs being adjusted on the interval of the water yield sends and the corresponding pressure code signal of its action, makes it to produce the variation of discharge area.This utility model has greatly reduced the difficulty of carrying out the layering water distribution with the mode of pulling operation with the mode of ground remote control, has simplified implement and required manual work, and success rate is high, reliable for effect.
Above-mentioned patent adopts high-pressure pump as pressure source at well head; Thereby the voltage-controlled injection well downhole flow regulator that reaches on the adjustment water yield interval sends and the corresponding pressure code signal of its action; The method need adopt high-pressure pump equipment, and cost is higher, and is manual manipulation; The time precision that produces pulse is low, and operates consuming time.Its major defect is following:
(1) absorbs water when serious when the stratum, adopt high-pressure pump to be difficult to produce obvious pressure reduction, the effect that produces compression wave is had bigger influence;
(2) after needing termination of pumping behind the pressure pulse of high-pressure pump completion one-period, start high-pressure pump once more, the bigger and length consuming time of this operation energy consumption;
(3) use the stability of high-pressure pump supercharging not enough, and cost is higher.
The utility model content
The purpose of the utility model is to solve a difficult problem that exists in the above-mentioned prior art, and a kind of device at water injection well well head generation pressure pulse is provided, and adopts program control type control motor power system; The breaker valve is controlled; Under the situation of not termination of pumping of water injection well, carry out accurate periodically reduced pressure operation, produce the periodic pressure pulse, control the voltage-controlled injection well downhole flow regulator in down-hole; When reducing labour cost, improve the reliability and the degree of accuracy.
The utility model is realized through following technical scheme:
A kind of device at water injection well well head generation pressure pulse comprises lubricator 1, pressure gauge connection 2, switch gate valve 3, liquid outlet 4 and motor transmission mechanism 5;
One of lubricator 1 terminates on the tubing thread, and the other end is connected with the entrance point of switch gate valve 3, and the port of export of switch gate valve 3 is connected with liquid outlet 4; Switch gate valve 3 is connected with motor transmission mechanism 5, and motor transmission mechanism 5 links to each other with computer;
On the pipeline between lubricator 1 and the switch gate valve 3, have pressure gauge connection 2,2 places connect pressure meter at pressure gauge connection.
Said computer control motor transmission mechanism 5, the switching of motor transmission mechanism 5 gauge tap gate valves 3 is carried out pressure release and then is produced periodically pressure drop water injection well, forms pressure pulse.
Said lubricator 1 is connected on the well head, when opening head valve and said switch gate valve 3 and be in closed condition, prevents that the well flow from going out, the sealing well head.
What said switch gate valve 3 adopted is Parallel gate valve Parallel slide valve.
Said switch gate valve 3 comprises valve rod, water nozzle stator and water nozzle rotor, and said motor transmission mechanism 5 drives valve rod and rotates, and valve rod closely is connected with the water nozzle rotor, thereby drives the water nozzle rotor rotation, controls the switch of valve nozzle with this.
Said motor transmission mechanism 5 comprises control circuit and motor; Said computer is through the rotation of the program control motor of control circuit, and the valve rod that motor provides moment of torsion to drive the switch gate valve again rotates.
Said liquid outlet 4 is the outlet of said device pressure release, and when the switch gate valve 3 of said device was opened, the liquid in the pit shaft sprayed from liquid outlet 4, thereby reaches the purpose that produces pressure drop.
Behind the well head gate opening, pressure gauge connection 2 keeps connected state with liquid in the pit shaft, connects the pressure that can monitor the water injection well pit shaft behind the pressure meter in real time and changes, and judges the pressure state when said switch gate valve 3 is opened or closed.
Compared with prior art, the beneficial effect of the utility model is:
(1) this device is under the situation of not termination of pumping of water injection well work; Utilize the well head pressure drop and produce the pressure-controlled injection well downhole flow regulator that the accurate pressure pulse signal is given the down-hole; Make it to accomplish in the corresponding action of code signal; To reach the purpose of regulating the water-filling nozzle size, when reducing labour cost, the reliability and the degree of accuracy have been improved;
(2) adopt program control type to control the action of motor power system manipulation of switches gate valve, implementation result is good, and the good seal performance of switch gate valve;
(3) simple to operate, only need on computer software, to send the corresponding command and get final product automatic starter motor transmission mechanism, sent command adapted thereto at the appointed time;
(4) cost of this device is low, is suitable for promoting.
Description of drawings
Fig. 1 is the utility model produces the device of pressure pulse at the water injection well well head a structural representation.
Fig. 2 is the utility model produces the device of pressure pulse at the water injection well well head a fundamental diagram.
Wherein, 1 is lubricator, and 2 is pressure gauge connection, and 3 is the switch gate valve, and 4 is liquid outlet, and 5 is motor transmission mechanism.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
As shown in Figure 1; A kind of device that produces pressure pulse at the water injection well well head; Comprise lubricator 1, pressure gauge connection 2, switch gate valve 3 (the employed gate valve of the utility model; By flashboard structure is to belong to Parallel gate valve Parallel slide valve, is to belong to inside screw nonrising stem type gate valve, liquid outlet 4 and motor transmission mechanism 5 by stem structure.One of lubricator 1 is terminated on the tubing thread, and the other end of lubricator 1 is connected with the entrance point of switch gate valve 3, and switch gate valve 3 is connected with motor transmission mechanism 5, and motor transmission mechanism 5 links to each other with computer (like notebook computer); On the pipeline between lubricator 1 and the switch gate valve 3, have pressure gauge connection 2,2 places connect pressure meter at pressure gauge connection, and the port of export of switch gate valve 3 is connected with liquid outlet 4.
The operating principle of this device is as shown in Figure 2; Switch gate valve 3 is initially closed condition; In the water injection well course of work, computer (PC) is with stored program control system control motor transmission mechanism 5, and motor transmission mechanism 5 is gauge tap gate valve 3 again; Utilize 3 pairs of water injection wells of switch gate valve to carry out pressure release and produce periodically pressure drop, thereby reach the purpose that produces pressure pulse.
This device is born the vital task that produces pressure pulse in intelligent decreasing water distribution method; Under the situation of not termination of pumping of water injection well, pass through stored program control system by-pass cock gate valve; Utilize the periodicity pressure drop of water injection well self to come to produce efficiently and accurately pressure pulse, downhole intelligent injection well downhole flow regulator water nozzle is regulated.
The workflow of this device is as shown in Figure 2; Under the situation of not termination of pumping of water injection well; Send one group by computer software and instruct, motor transmission mechanism manipulation of switches gate valve, the moment that the switch gate valve is opened to motor transmission mechanism; Thereby the liquid state in the water injection well flows out from liquid outlet and produces pressure drop, and the gauge tap gate valve is closed subsequently.So the periodic switch valve produces pressure pulse signal, and voltage-controlled injection well downhole flow regulator sends the compression wave coded command to the down-hole, and voltage-controlled injection well downhole flow regulator is accomplished in the corresponding action of instruction after receiving the signal coded command, thereby reaches the purpose of regulating the water nozzle size.
The innovative point of the utility model is:
(1) the pressure pulse producing method is the pressure drop formula, and adopts the high-pressure pump supercharging mode at present usually;
(2) adopt motor transmission mechanism to drive the switch gate valve and rotate, the sealing performance of controlled valve is high;
(3) adopting program control type control motor transmission mechanism to come the gauge tap gate valve, was that one-period gauge tap gate valve switch state obtains one group of pressure waveform with this with 30 seconds, and 16 bit bytes are group coding instruction, 450 seconds promptly consuming time.
Technique scheme is a kind of embodiment of the utility model; For those skilled in the art; On the basis that the utility model discloses application process and principle, be easy to make various types of improvement or distortion, and be not limited only to the described method of the above-mentioned specific embodiment of the utility model; Therefore the mode of front description is just preferred, and does not have restrictive meaning.
Claims (8)
1. one kind produces the device of pressure pulse at the water injection well well head, and it is characterized in that: said device comprises lubricator (1), pressure gauge connection (2), switch gate valve (3), liquid outlet (4) and motor transmission mechanism (5);
One of said lubricator (1) terminates on the tubing thread, and the other end is connected with the entrance point of switch gate valve (3), and the port of export of switch gate valve (3) is connected with liquid outlet (4); Switch gate valve (3) is connected with motor transmission mechanism (5), and motor transmission mechanism (5) links to each other with computer;
On the pipeline between said lubricator (1) and the switch gate valve (3), have pressure gauge connection (2), locate to connect pressure meter at pressure gauge connection (2).
2. the device that produces pressure pulse at the water injection well well head according to claim 1; It is characterized in that: said computer is controlled motor transmission mechanism (5) with stored program control system; The switching of motor transmission mechanism (5) gauge tap gate valve (3); Water injection well is carried out pressure release and then produces periodically pressure drop, form pressure pulse.
3. the device at water injection well well head generation pressure pulse according to claim 1, it is characterized in that: said lubricator (1) is connected on the well head, opening head valve and said switch gate valve (3) when being in closed condition, prevents that the well flow from going out, the sealing well head.
4. the device at water injection well well head generation pressure pulse according to claim 1, it is characterized in that: what said switch gate valve (3) adopted is Parallel gate valve Parallel slide valve.
5. the device that produces pressure pulse at the water injection well well head according to claim 4; It is characterized in that: said switch gate valve (3) comprises valve rod, water nozzle stator and water nozzle rotor; Said motor transmission mechanism (5) drives valve rod and rotates; Valve rod closely is connected with the water nozzle rotor, thereby drives the water nozzle rotor rotation, controls the switch of valve nozzle with this.
6. the device at water injection well well head generation pressure pulse according to claim 5, it is characterized in that: said motor transmission mechanism (5) comprises control circuit and motor; Said computer is through the rotation of the program control motor of control circuit, and the valve rod that motor provides moment of torsion to drive the switch gate valve again rotates.
7. the device that produces pressure pulse at the water injection well well head according to claim 1; It is characterized in that: said liquid outlet (4) is the outlet of said device pressure release; When the switch gate valve (3) of said device is opened; Liquid in the pit shaft sprays from liquid outlet (4), thereby reaches the purpose that produces pressure drop.
8. the device that produces pressure pulse at the water injection well well head according to claim 1; It is characterized in that: behind the well head gate opening; Pressure gauge connection (2) keeps connected state with the interior liquid of pit shaft; Connect the pressure that to monitor the water injection well pit shaft behind the pressure meter in real time and change, judge the pressure state when said switch gate valve (3) is opened or closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120217654U CN202148890U (en) | 2011-06-24 | 2011-06-24 | Device for producing pressure pulse at wellhead of water injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120217654U CN202148890U (en) | 2011-06-24 | 2011-06-24 | Device for producing pressure pulse at wellhead of water injection well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202148890U true CN202148890U (en) | 2012-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120217654U Expired - Lifetime CN202148890U (en) | 2011-06-24 | 2011-06-24 | Device for producing pressure pulse at wellhead of water injection well |
Country Status (1)
| Country | Link |
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| CN (1) | CN202148890U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514545A (en) * | 2013-09-29 | 2015-04-15 | 中国石油天然气股份有限公司 | Pressure drop tester for wellhead of water injection well |
| CN105587312A (en) * | 2016-03-10 | 2016-05-18 | 西南石油大学 | High-pressure water injection well head pressure gauge connector and matched wrench thereof |
| CN108222902A (en) * | 2017-10-24 | 2018-06-29 | 中国石油化工股份有限公司 | Intelligent water injection device and method |
| CN108590637A (en) * | 2018-05-02 | 2018-09-28 | 高原 | A kind of sucker rod pumping well downhole data pressure pulse transmitting device and method |
| CN109424357A (en) * | 2017-08-16 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of rotary valve pressure pulse generator |
| CN110397426A (en) * | 2019-08-16 | 2019-11-01 | 四川航天烽火伺服控制技术有限公司 | Well head frequency pressure pulses signal receiving/transmission device and oil exploration equipment |
| CN113124186A (en) * | 2021-04-22 | 2021-07-16 | 中海油田服务股份有限公司 | Pulse injection device for removing blockage and blockage removing system |
-
2011
- 2011-06-24 CN CN201120217654U patent/CN202148890U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514545A (en) * | 2013-09-29 | 2015-04-15 | 中国石油天然气股份有限公司 | Pressure drop tester for wellhead of water injection well |
| CN105587312A (en) * | 2016-03-10 | 2016-05-18 | 西南石油大学 | High-pressure water injection well head pressure gauge connector and matched wrench thereof |
| CN105587312B (en) * | 2016-03-10 | 2019-05-03 | 西南石油大学 | High-pressure water injection well well head pressure gauge connector and its associated spanner |
| CN109424357A (en) * | 2017-08-16 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of rotary valve pressure pulse generator |
| CN109424357B (en) * | 2017-08-16 | 2023-09-01 | 中国石油化工股份有限公司 | Rotary valve type pressure pulse generator |
| CN108222902A (en) * | 2017-10-24 | 2018-06-29 | 中国石油化工股份有限公司 | Intelligent water injection device and method |
| CN108590637A (en) * | 2018-05-02 | 2018-09-28 | 高原 | A kind of sucker rod pumping well downhole data pressure pulse transmitting device and method |
| CN110397426A (en) * | 2019-08-16 | 2019-11-01 | 四川航天烽火伺服控制技术有限公司 | Well head frequency pressure pulses signal receiving/transmission device and oil exploration equipment |
| CN113124186A (en) * | 2021-04-22 | 2021-07-16 | 中海油田服务股份有限公司 | Pulse injection device for removing blockage and blockage removing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120222 |
|
| CX01 | Expiry of patent term |