CN104806229B - Plunger lift water pumping gas production production logging system and its control method - Google Patents

Plunger lift water pumping gas production production logging system and its control method Download PDF

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Publication number
CN104806229B
CN104806229B CN201510151418.7A CN201510151418A CN104806229B CN 104806229 B CN104806229 B CN 104806229B CN 201510151418 A CN201510151418 A CN 201510151418A CN 104806229 B CN104806229 B CN 104806229B
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plunger
microprocessor
production
production logging
module
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CN104806229A (en
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黄长兵
田宝
陈科贵
陈愿愿
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Southwest Petroleum University
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Southwest Petroleum University
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121Lifting well fluids
    • E21B43/122Gas lift
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/06Measuring temperature or pressure
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/06Measuring temperature or pressure
    • E21B47/07Temperature
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/12Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/26Storing data down-hole, e.g. in a memory or on a record carrier

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Geophysics (AREA)
  • Remote Sensing (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The present invention relates to a kind of measuring system and its control method, specially plunger lift water pumping gas production production logging system, including host computer and slave computer;Host computer includes the wireless communication module and well head controller being arranged on lubricator;Slave computer includes production logging module, and production logging module is arranged on the top of plunger body or plunger;Production logging module is connected with travel switch, and travel switch is connected with the collision bar in plunger;Its control method combines production logging with plunger lift technique, the stage is pressed to carry out production logging again using the closing well of gaslift process operation process, measure bottom hole temperature (BHT), flowing bottomhole pressure (FBHP) and production fluid flow amount information, measurement data is first preserved on the spot in shaft bottom, until the up stage is transferred to well head controller by radio communication system again, the safety collection of log data is realized, the accuracy and data acquisition diversity of data is improved.

Description

Plunger lift water pumping gas production production logging system and its control method
Technical field
The present invention relates to a kind of measuring system and its control method, specially plunger lift water pumping gas production production logging system And its control method.
Background technology
Plunger Airlift Draining Gas Recovery is a kind of technique of intermittent gaslift christmas, due to lifting gas and being lifted A kind of seal interface-plunger of solid is provided between liquid, therefore the process reduces the channelling of gas and the falling of liquid, So as to effectively improve the lifting efficiency of gas energy, greatly improve well yield.
Current Plunger Airlift Draining Gas Recovery, can not direct measurement down-hole formation in running once installing and using Aerogenesis situation, is only capable of estimating and judge that indirectly stratum is actual by measuring oil pressure, casing pressure, aerogenesis and aquifer yield in ground well head Situation, can not provide more parameters, it is impossible to the excellent of the technique merely with these data to the solution of the technology theory model Change and more actual information be provided, it is impossible to the adjustment of its work period during process operation is provided it is reliable it is actual according to According to, it is impossible to the production status and development behavior of monitoring and analyzing oil and gas layer.And the gas producing technology enters down again once operation It is extremely inconvenient that production logging instrument carries out production logging.
The patent of invention of Application No. 201110402030.1《System for tracking downhole running state of gas production plunger and its work Method》There is provided a kind of plunger underground location and running status tracking system, the technology is just for plunger determining in underground in itself Position and its motion state are monitored, and detection object is single, it is impossible to which the geo-logical terrain situation to the natural gas well is detected, it is impossible to The aerogenesis situation and water outlet degree of gas-bearing formation are grasped in time.Its data transfer collides tubing coupling when being run using plunger in oil pipe Sound wave pulse signal is produced to be transferred to ground along body or directly launch sound wave pulse signal by pipe by plunger detection subsystem Interior gas medium is transmitted to well head, and this transmission means has shortcoming:(1) intersymbol interference.Have between oil connection The influence time that this high emission characteristic result in drill string pulse lasts up to hundred milliseconds, intersymbol is significantly interfered with production Raw, this influence is the principal element for restricting channel transfer capability.(2) noise jamming.By multi-phase fluid movement during aerogenesis progress The noise of generation can change signal to noise ratio, so as to influence the transmission of channel.(3) SATT.Sound wave spreads with spherical manner While can be influenceed by medium and barrier so that energy is absorbed to change into other forms by medium or barrier Energy.(4) measurement parameter is few.
The content of the invention
For above-mentioned technical problem, the present invention provides a kind of production logging system and its control method, realizes log data Safety collection, improve data accuracy and data acquisition diversity.
Concrete technical scheme is:
Plunger lift water pumping gas production production logging system, including host computer and slave computer;
Host computer includes the wireless communication module and well head controller being arranged on lubricator;
Slave computer includes production logging module, and production logging module is arranged on the top of plunger body or plunger;Production is surveyed Well module is connected with travel switch, and travel switch is connected with the collision bar in plunger;
Production logging module is used for the log data for gathering and storing flow, temperature, pressure signal, and log data is sent out Give wireless communication module, receive host computer instruction, when production logging module goes wrong, to host computer alert and Diagnostic message;
Wireless communication module is responsible for receiving the log data of production logging module, and gives well head control by logging data transmission system Device, well head controller is connected by cable with wireless communication module, is received and is stored log data, warning message and diagnosis are believed Breath, or oil field central control room is passed data to by Supervisory control and data acquisition and monitoring system (SCADA).
Production logging module includes flow sensor, temperature sensor, pressure sensor, microprocessor, well logging channel radio Believe module, memory and battery;Described flow sensor is connected by flow signal modulate circuit with microprocessor, and temperature is passed Sensor is connected by temperature signal regulation circuit, temperature A/D change-over circuits with microprocessor;Pressure sensor passes through pressure signal Modulate circuit, pressure A/D change-over circuits are connected with microprocessor;Described pressure A/D change-over circuits are connected with reference voltage electricity Road;Described well logging wireless communication module and memory are connected with microprocessor respectively;Microprocessor has control circuit and stroke Switch connection, battery is respectively flow sensor, temperature sensor, pressure sensor, microprocessor, well logging wireless communication module Power supply is provided.
Plunger lift water pumping gas production production logging control method:
Since well shut-in period, plunger falls from earth's surface, and the ball-and-seat in plunger is opened, and forms a passage, makes gas-liquid Pass through, plunger falls in the presence of self gravitation, gas and water passes through the interstitial flow between central tube and collision bar;Fallen under Behind shaft bottom, plunger is collided with shaft bottom buffer, and stress part is valve rod, and valve rod is moved upwards, promotes the collision bar at plunger center Move upwardly together, last valve rod is contacted with the central tube in plunger, the channel enclosed that oil gas is transmitted;Transported upwards in collision bar While dynamic, the power moved upwards by valve rod pushes up travel switch, when travel switch is moved, transmits a signal to life Produce the microprocessor of logging module;Microprocessor receives signal, sends signal 11, shows that plunger has been occupied stably on fastener, Measurement instruction is sent, flow sensor, temperature sensor, pressure sensor is opened and measures, measurement result is stored in In reservoir;
During plunger is up, i.e., after plunger leaves fastener, travel switch automatically resets to original state, together When be transferred to microprocessor reset signal 10, microprocessor stops measurement after receiving 11-10 signals;
When plunger is given rise to earth's surface lubricator together with liquid, plunger is grabbed device by catching in lubricator and fixed, post Cushion pad collision in center-pole and lubricator in plug, collision bar stress moves downward, and promotes valve rod to move downward, valve rod with The central tube of plunger is separated, and forms the passage of oil gas transmission, the gas of plunger bottom is reached sales line by plunger valve, this When collision bar the travel switch in production logging module is pushed down on by cushion pad impact force, travel switch be pushed under it is same When, one switching signal 00 of microprocessor of production logging module is transferred to, microprocessor receives signal, and finds that signal becomes Change is 10-00, shows that plunger is had arrived in shaft mouth anti-blowout pipe, and microprocessor is to send instruction unpack well logging radio communication mold Block, well logging wireless communication module and host computer wireless communication module set up contacts, by the flow stored in memory, temperature, The well head controller of pressure detection well information, transmitting fault information to host computer, well logging wireless communication module receives host computer simultaneously Information;
Plunger start it is descending when, leave after lubricator, travel switch resets to original state, simultaneous transmission gives micro- place Device reset signal 10 is managed, microprocessor stops data transfer after receiving 00-10 variable signals, waits plunger to go downwards to locking Start next period measurement on device.
Flow sensor measures flow, and flow is that sign dynamic change of oil wells and evaluate gas-bearing formation industry characteristics one are important Parameter, for water-producing gas well, its meaning is bigger, formulation to working system, realizes that productivity effect is maximized and had a significant impact.Oil In gas field exploration development process, the change of reservoir temperature and borehole fluid temperature is very important parameter and information.
Temperature sensor measurement records the well temperature or the temperature change along well profile of a certain depth, and its well-log information can be used for Reservoir temperature is determined, borehole fluid flow regime is understood, injection profile is divided, aerogenesis, production liquid mouthful position is determined, inspection, which is kept a grip on, lets out Leakage, channelling, evaluate many aspects such as acidifying, fracturing effect.
Pressure sensor is used for the flowing pressure of measurement stratum pressure (static pressure) and Oil/gas Well, strata pressure and flowing pressure Difference be exactly producing pressure differential.The size of oil gas well potential has direct relation with producing pressure differential, and the big production capacity of pressure difference is just Greatly.The two manufacturing parameters are measured, by dynamic analysis, are grasped and Pressure Variation and oil reservoir pressure in analysis development process The regularity of distribution of power, it is reasonable development oil field to take corresponding measure to be adjusted in time, it is ensured that oil field high yield, stable yields, improves oil The important means of field ultimate recovery.Conventional plunger lift technique can only indirectly be estimated by measuring the oil pressure and casing pressure of well head This producing pressure differential is counted, and the plunger lift water pumping gas production production logging system that this present invention is provided can go deep into pressure sensor Shaft bottom and sustainable measurement is for a period of time, obtains substantial amounts of bottom pressure information.
Plunger lift water pumping gas production production logging system and its control method that the present invention is provided, by production logging and plunger Gaslift technique combines, using the closing well of gaslift process operation process press again the stage carry out production logging, measurement bottom hole temperature (BHT), Flowing bottomhole pressure (FBHP) and production fluid flow amount information, measurement data is first preserved on the spot in shaft bottom, until the up stage passes through radio communication again Scheme transmission realizes the safety collection of log data, improves the accuracy and data acquisition diversity of data to well head controller.
Brief description of the drawings
Fig. 1 is the plunger lift water pumping gas production production logging system structure diagram of the present invention;
Fig. 2 is the structural representation of the production logging module of the present invention;
Fig. 3 is the control method flow chart of the present invention.
Embodiment
The specific embodiment of the present invention is described with reference to the drawings.
As shown in figure 1, plunger lift water pumping gas production production logging system, including host computer and slave computer;
Host computer includes the wireless communication module 1 and well head controller 2 being arranged on lubricator 100;
Slave computer includes production logging module 3, and production logging module 3 is arranged on the upper of the inside of plunger 200 or plunger 200 Portion;Production logging module 3 is connected with travel switch 314, and travel switch 314 is connected with the collision bar in plunger 200;
Production logging module 3 is used to gathering and store the log data of flow, temperature, pressure signal, and by log data Wireless communication module 1 is sent to, receives host computer instruction, when production logging module 3 goes wrong, alarm signal is sent to host computer Breath and diagnostic message;
Wireless communication module 1 is responsible for receiving the log data of production logging module 3, and gives well head control by logging data transmission system Device 2 processed, well head controller 2 is connected by cable with wireless communication module 1, is received and is stored log data, warning message and examines Disconnected information, or oil field central control room is passed data to by Supervisory control and data acquisition and monitoring system (SCADA).
As shown in Fig. 2 production logging module 3 include flow sensor 301, temperature sensor 302, pressure sensor 303, Microprocessor 311, well logging wireless communication module 312, memory 313 and battery 310;Described flow sensor 301 passes through stream Amount signal conditioning circuit 304 is connected with microprocessor 311, and temperature sensor 302 passes through temperature signal regulation circuit 305, temperature A/D change-over circuits 307 are connected with microprocessor 311;Pressure sensor 303 passes through pressure signal conditioning circuit 306, pressure A/D Change-over circuit 308 is connected with microprocessor 311;Described pressure A/D change-over circuits 308 are connected with reference voltage circuit 309;Institute The well logging wireless communication module 312 and memory 313 stated are connected with microprocessor 311 respectively;Microprocessor 311 has control circuit It is connected with travel switch 314, battery 310 is respectively flow sensor 301, temperature sensor 302, pressure sensor 303, Wei Chu Manage device 311, well logging wireless communication module 312 and power supply is provided.
As shown in figure 3, plunger lift water pumping gas production production logging control method:
Since well shut-in period, plunger 200 falls from earth's surface, and the ball-and-seat in plunger 200 is opened, and forms a passage, Pass through gas-liquid, plunger 200 falls in the presence of self gravitation, and gas and water passes through the interstitial flow between central tube and collision bar; After falling on shaft bottom under, plunger 200 is collided with shaft bottom buffer, and stress part is valve rod, and valve rod is moved upwards, promotes plunger The collision bar at 200 centers is moved upwardly together, and last valve rod is contacted with the central tube in plunger 200, the passage that oil gas is transmitted Closing;While collision bar is moved upwards, the power moved upwards by valve rod pushes up travel switch 314, travel switch During 314 motion, the microprocessor 311 of production logging module 3 is transmitted a signal to;Microprocessor 311 receives signal, sends letter Numbers 11, show that plunger 200 has been occupied stably on fastener, send measurement instruction, open flow sensor 301, temperature sensor 302nd, pressure sensor 303 is measured, and measurement result is stored in memory 313;
During plunger 200 is up, i.e., after plunger 200 leaves fastener, travel switch 314 is automatically reset to just Beginning state, simultaneous transmission to the reset signal 10 of microprocessor 311, microprocessor 311 to stop surveying after receiving 11-10 signals Amount;
When plunger 200 is given rise to earth's surface lubricator 100 together with liquid, plunger grabs device by catching in lubricator 100 Fix, the center-pole in plunger 200 is collided with the cushion pad in lubricator 100, collision bar stress is moved downward, promote valve rod Move downward, the central tube of valve rod and plunger 200 is separated, form the passage of oil gas transmission, pass through the gas of the bottom of plunger 200 Plunger valve reach sales line, now collision bar by cushion pad impact force by the travel switch 314 in production logging module 3 to Under push away, travel switch 314 be pushed under while, be transferred to 311 1 switching signals of microprocessor of production logging module 3 00, microprocessor 311 receives signal, and finds that signal intensity is 10-00, shows that plunger 200 has arrived at shaft mouth anti-blowout pipe In 100, microprocessor 311 i.e. send instruction unpack well logging wireless communication module 312, well logging wireless communication module 312 with it is upper The wireless communication module 1 of machine sets up contact, by the flow of the inner storage of memory 313, temperature, pressure detection well information, fault message The well head controller 2 of host computer is transferred to, well logging wireless communication module 312 receives the information of host computer simultaneously;
Plunger 200 start it is descending when, leave after lubricator 100, travel switch 314 resets to original state, simultaneously The reset signal 10 of microprocessor 311 is transferred to, microprocessor 311 stops data transfer after receiving 00-10 variable signals, etc. Treat that plunger 200 is gone downwards on fastener and start next period measurement.

Claims (1)

1. the control method of plunger lift water pumping gas production production logging system, described plunger lift water pumping gas production production logging system System, including host computer and slave computer;
Described host computer includes the wireless communication module (1) and well head controller (2) being arranged on lubricator (100);
Described slave computer includes production logging module (3), and production logging module (3) is arranged on plunger (200) inside or plunger (200) top;Production logging module (3) is connected with travel switch (314), travel switch (314) and touching in plunger (200) Lance is connected;
Described production logging module (3) is used for the log data for gathering and storing flow, temperature, pressure signal, and will well logging Data are sent to wireless communication module (1), receive host computer instruction, when production logging module (3) goes wrong, are sent out to host computer Go out warning message and diagnostic message;
Described wireless communication module (1) is responsible for receiving the log data of production logging module (3), and logging data transmission system is given Well head controller (2), well head controller (2) is connected by cable with wireless communication module (1), receive and store log data, Warning message and diagnostic message, or pass data to oil field central control room:
Described production logging module (3) include flow sensor (301), temperature sensor (302), pressure sensor (303), Microprocessor (311), well logging wireless communication module (312), memory (313) and battery (310);Described flow sensor (301) it is connected by flow signal modulate circuit (304) with microprocessor (311), temperature sensor (302) passes through temperature signal Modulate circuit (305), temperature A/D change-over circuits (307) are connected with microprocessor (311);Pressure sensor (303) passes through pressure Signal conditioning circuit (306), pressure A/D change-over circuits (308) are connected with microprocessor (311);Described pressure A/D conversion electricity Road (308) is connected with reference voltage circuit (309);Described well logging wireless communication module (312) and memory (313) respectively with Microprocessor (311) is connected;Microprocessor (311) has control circuit to be connected with travel switch (314), and battery (310) is respectively Flow sensor (301), temperature sensor (302), pressure sensor (303), microprocessor (311), well logging radio communication mold Block (312) provides power supply;
Characterized in that, production logging control method, including procedure below:
Since well shut-in period, plunger (200) falls from earth's surface, and the ball-and-seat in plunger (200) is opened, and forms a passage, Pass through gas-liquid, plunger (200) falls in the presence of self gravitation, gas and water is flowed by the space between central tube and collision bar It is dynamic;After falling on shaft bottom under, plunger (200) is collided with shaft bottom buffer, and stress part is valve rod, and valve rod is moved upwards, is promoted The collision bar at plunger (200) center is moved upwardly together, and last valve rod is contacted with the central tube in plunger (200), and oil gas is passed Defeated channel enclosed;While collision bar is moved upwards, the power moved upwards by valve rod, by travel switch (314) upwards Push away, when travel switch (314) is moved, transmit a signal to the microprocessor (311) of production logging module (3);Microprocessor (311) signal is received, signal 11 is sent, shows that plunger (200) has been occupied stably on fastener, measurement instruction is sent, stream is opened Quantity sensor (301), temperature sensor (302), pressure sensor (303) are measured, and measurement result is stored in into memory (313) in;
During plunger (200) is up, i.e., after plunger (200) leaves fastener, travel switch (314) is automatically reset to Original state, simultaneous transmission is to microprocessor (311) reset signal 10, and microprocessor (311) stops after receiving 11-10 signals Only measure;
When plunger (200) is given rise to earth's surface lubricator (100) together with liquid, plunger grabs dress by catching in lubricator (100) Put and fix, the collision bar in plunger (200) is collided with the cushion pad in lubricator (100), collision bar stress is moved downward, pushed away Ovable valve stem is moved downward, and valve rod and the central tube of plunger (200) are separated, and is formed the passage of oil gas transmission, is made plunger (200) bottom Gas by plunger valve reach sales line, now collision bar by cushion pad impact force by production logging module (3) Travel switch (314) is pushed down on, travel switch (314) be pushed under while, be transferred to the microprocessor of production logging module (3) (311) switching signals 00 of device, microprocessor (311) receives signal, and finds that signal intensity is 10-00, shows plunger (200) have arrived in shaft mouth anti-blowout pipe (100), microprocessor (311) is to send instruction unpack well logging wireless communication module (312), well logging wireless communication module (312) is set up with the wireless communication module (1) of host computer and contacted, and memory (313) is inner Well head controller (2) of the flow, temperature, pressure detection well information, transmitting fault information of storage to host computer, radio communication of logging well Module (312) is while receive the information of host computer;
When plunger (200) beginning is descending, leave after lubricator (100), travel switch (314) resets to original state, together When be transferred to microprocessor (311) reset signal 10, microprocessor (311) stops data after receiving 00-10 variable signals Transmission, waits plunger (200) to go downwards on fastener and starts next period measurement.
CN201510151418.7A 2015-04-01 2015-04-01 Plunger lift water pumping gas production production logging system and its control method Expired - Fee Related CN104806229B (en)

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