CN206235858U - The fast automatic control device of well head of gas drilling safe-guard system - Google Patents

Abstract

The utility model discloses a kind of fast automatic control device of well head of gas drilling safe-guard system, it is related to oil, gas drilling technology and field of security guarantee, including closing well control cabinet, driller station, relief line liquid-operated flat valve controls pipeline, annular preventer controls pipeline, sediment outflow pipeline liquid-operated flat valve and sediment outflow pipeline liquid-operated flat valve control pipeline, wherein, closing well control cabinet is connected with uni-directional wireless communication line f with Centralized Monitoring room, remote control commands for transmitting well head, closing well control cabinet is by hydraulic line respectively to annular preventer, relief line liquid-operated flat valve and sediment outflow pipeline liquid-operated flat valve are controlled.Using the utility model, the remote auto control realized to well head can be crossed, novel, simple structure is suitable to popularity application, is applied in gas drilling safe-guard system, making a concerted effort for comprehensive guarantee gas drilling safety can be formed.

Description

The fast automatic control device of well head of gas drilling safe-guard system

Technical field

The utility model is related to oil, gas drilling technology and field of security guarantee, specifically relates to a kind of gas The fast automatic control device of well head of drilling safety safeguards system.

Background technology

Gas drilling be solve low pressure, low hole, low permeability reservoirs it is difficult find, the effective means of difficult mining problem, can be with 100% ground finds oil bearing reservoir, obtains the initial production capacity of reservoir；Reservoir zero is injured, effective reservoir protec-tion, improve well yield And recovery ratio；Avoid drilling well leakage from occurring, greatly improve bit speed, save cost of exploration ＆ development.In recent years in Sichuan, tower Wood, Jilin, Kelamayi, tell the oil gas fields such as Kazakhstan and obtained large-scale application, well yield increases by more than 80%, while promoting one Criticize construction and obtain breakthrough exploration results.But because the object of nitrogen injection drilling is often the indefinite reservoir of geology, well control Risk is high, and the reliability and emergency capability to ground installation and technology have higher requirements.If none of comprehensive The drilling well of safe-guard system real-time monitoring and gas sample parameter, grasp ground and underground state, for engineer provide decision-making judge according to According to, and automation emergency function and essential safety ability by equipment reduces the probability that is made a mistake in emergency disposal of people, So nitrogen injection drilling still has misgivings in well control risk, it is impossible to play its huge advantage for finding and protecting reservoir.

Harry's Bowden company of the U.S. starts to develop underbalance data collecting system for 1999, and the data of collection include reservoir pressure Power, flow, gas component, drilling machinery parameter etc..Wellsite gases detection Co., Ltd digital data recording system can be continuous Some months is recorded and display well site information, and its software is in a leading position level in field of gas detection.Domestic many research institutions and Specialized company also have developed multiple gases situ of drilling well safety monitoring system, and apply for patent.For example, Publication No. 104675382A, publication date is that the Chinese patent literature on June 3 in 2015 discloses a kind of gas drilling landwaste and returns out monitoring system System and monitoring method, it includes that solid flowmeter and winch transmitter return out landwaste amount and the corresponding rock of winch angular displacement to measure Discharge capacity is considered to be worth doing to obtain more accurately returning out landwaste state.The systemic-function is single, and the safety to gas drilling does not constitute essence Property protection.Publication No. 204200209U, publication date is that the Chinese patent literature on March 11 in 2015 discloses a kind of gas brill Well pre-warning system for monitoring, it includes engineering parameter monitoring unit, monitoring server and alarm unit, wherein engineering parameter prison Survey includes injection gas pressure, flow, returns out gas pressure, component, returns out landwaste amount and formation water output, moment of torsion and is supervised when boring The functions such as survey, can more early find that stratum is produced regimen condition and gas drilling downhole safety is commented with reference to Other Engineering parameter Estimate.The system lays particular emphasis on the anticipation to gas drilling down hole problem, lacks to the Centralized Monitoring of ground equipment state and right The shut-off control in case of emergency of well head, sediment outflow pipeline and gas injection equipment.Publication No. 202031579U, publication date is 2015 The Chinese patent literature on March 11, in discloses a kind of field detection system for gas drilling, and it includes data collection processor, nothing Line transmitter, wireless receiver and host computer, wireless launcher are communicated by data radio station wireless network with wireless receiver.Should System only carries out data acquisition to air compressor machine, supercharger, and object does not include nitrogen making machine, while unitary function, not to entering well, going out The function that well gas and underground state are monitored.Publication No. 202914075U, during publication date is on May in 2013 1 State's patent document discloses a kind of gas drilling information integration monitoring system, and it includes harvester, integrated acquirer, data processing And memory, integration release device, technical grade wireless router and distal end monitoring computer, monitoring result has been concentrated on into a work Make on interface, improve operating efficiency.Collection content includes compound logging, sampling, safety monitoring and data etc. equipment, same to lack The weary shut-off control to well head, sediment outflow pipeline and gas injection equipment in case of emergency.Publication No. 202914075U, publication date is The Chinese patent literature on May 1 discloses a kind of air drilling gas controlling device within 2013, it include sulfur dioxide, hydrogen, The monitoring of carbon monoxide, oxygen, methane and concentration of hydrogen sulfide, is mainly used in well gas and underground status monitoring, lacks into gas well gas Body and equipment condition monitoring, more control without shut-off in emergency circumstances, are difficult to give full play to safety guarantee in gas drilling Effect.

Equipment or systemic-function are not perfect disclosed in above-mentioned patent, and monitoring object is more unilateral, without solution practice process Present in mix that the nitrogen gas purity monitoring after supercharging is inaccurate, probe tube is easily blocked, well head toxic and harmful lacks after water outlet The problems such as actively monitoring and in case of emergency equipment, well head and sediment outflow pipeline lack automatic cut-off function.There is no unified end Scattered Monitoring Data is gathered and facilitates engineer's integrated decision-making and judgement by end, and the level of informatization is not high.Only possesses prison Brake, neither one harbor can carry out remote control to equipment, well head and sediment outflow pipeline, and self-protection means are lacked, Supportability to gas drilling safety is limited, and this largely weakens the essential safety performance of gas drilling.

The content of the invention

The utility model is intended to defect and deficiency existing for above-mentioned prior art, there is provided a kind of gas drilling safety The fast automatic control device of well head of safeguards system, using the utility model, can cross the remote auto control realized to well head, structure Think novel, simple structure, be suitable to popularity application, be applied in gas drilling safe-guard system, comprehensive guarantor can be formed Barrier gas drilling is safe to make a concerted effort.

The utility model is realized by using following technical proposals：

A kind of well head fast automatic control device of gas drilling safe-guard system, it is characterised in that：Including closing well control Case processed, driller station, relief line liquid-operated flat valve control pipeline, annular preventer control pipeline, sediment outflow pipeline liquid-operated flat valve Pipeline is controlled with sediment outflow pipeline liquid-operated flat valve, wherein, closing well control cabinet is connected with uni-directional wireless connection with Centralized Monitoring room Road f, the remote control commands for transmitting well head, closing well control cabinet is by hydraulic line respectively to annular preventer, blooie pipe Line liquid-operated flat valve and sediment outflow pipeline liquid-operated flat valve are controlled.

Compared with prior art, what the utility model was reached has the beneficial effect that：

1st, using the utility model, the remote auto control realized to well head can be crossed, novel, simple structure is suitable to Popularity application.

2nd, by the utility model application safe-guard system, polynary, scattered Monitoring Data is concentrated on into unified work Make on interface, it is convenient to observe and record, while having equipment, well head remote control function, form comprehensive guarantee gas and bore Well is safe to make a concerted effort.

Brief description of the drawings

Below in conjunction with specification drawings and specific embodiments, the utility model is described in further detail, its In：

Fig. 1 is the connection signal sketch that the utility model is applied to gas drilling safe-guard system；

Fig. 2 be Fig. 1 in connect detail drawing.

Marked in figure：

1- aspiration pumps；2- well head toxic and harmful monitoring alarms；3- data radio stations radio network device one；4- is supervised Survey instrument；5- rotating blowout preventers；6- annular preventers；7- sediment outflow pipeline liquid-operated flat valves；8- sediment outflow pipelines liquid-operated flat valve is controlled Pipeline；9- driller stations；10- relief lines liquid-operated flat valve controls pipeline；11- annular preventers control pipeline；12- closing wells are controlled Case；13- audible-visual annunciators；14- well heads are met an urgent need remote control button；15- enters well gas remote control button；16- Centralized Monitorings Room；17- central processing units；18- host computers；19- video surveillance instrument；20- drilling parameter display terminals；21- data radio stations are wireless Network equipment two；22- returns out fluid monitoring device；23- dry dust removal casees；24- equipment remote control buttons；25- enters well gas Remote control pipeline；26- equipment condition monitoring display terminals；27- enters well well head gas and returns out fluid inspection display terminal； 28- video surveillance display terminals；29- data radio stations radio network device three；30- returns out fluid inspection instrument；31- wet dust removals Case；32- setting pots；33- samples pipe nipple one；34- nitrogen gas purity monitors；35- second depressurized valves；36- one-level pressure relief valves；37- Differential intelligent flow meter；38- sediment outflow pipelines；39- enters well gas monitoring and control device；40- samples pipe nipple；41- gauge orifices Plate；42- throttling pipe nipples；43- gas supply lines；44- enters well gas control valve group；45- device controllers；46- superchargers；47- films Nitrogen making machine；48- air compressor machines；49- status information of equipment Acquisition Processors；50- data radio stations radio network device four；51- equipment Status monitoring and control device；52- relief line liquid-operated flat valves；53- radio communication lines a；54- radio communication lines b； 55- radio communication lines c；56- radio communication lines d；57- radio communication lines e；58- radio communication lines f.

Specific embodiment

Embodiment 1

Used as a better embodiment of the present utility model, it includes closing well control cabinet 12, driller station 9 and its control pipeline 10th, 11, sediment outflow pipeline liquid-operated flat valve 7 and its control pipeline 8.Wherein, closing well control cabinet 12 is connected with Centralized Monitoring room 16 One uni-directional wireless communication line f58, for transmission engineering teacher to the remote control commands of well head；Closing well control cabinet 12 passes through liquid Pressure pipeline is controlled to annular preventer 6, relief line liquid-operated flat valve 52 and sediment outflow pipeline liquid-operated flat valve 7 respectively, its In the control of annular preventer 6 and relief line liquid-operated flat valve 52 is performed indirectly by driller station 9, sediment outflow pipeline is surged The control of flap type 7 is then directly performed by closing well control cabinet 12.

Embodiment 2

The utility model is applied in gas drilling safe-guard system, it is mainly made up of six big devices, is respectively Centralized Monitoring room 16, equipment condition monitoring and control device 51, enter well gas monitoring with control device 39, return out fluid inspection dress Put 22, well head toxic and harmful monitoring alarm 2 and the fast automatic control device of well head.

Wherein, Centralized Monitoring room 16 includes equipment condition monitoring display terminal 26 and its remote control button 24, enters gas well gas Body monitors display terminal 27 and its remote control button 15, returns out fluid inspection display terminal 27, well head toxic and harmful prison Display terminal 27, video surveillance instrument 19 and its emergent remote control of display terminal 28, drilling parameter display terminal 20, well head is surveyed to press Button 14, central processing unit 17, host computer 18, audible-visual annunciator 13 and data radio station radio network device 2 21；Enter well gas, return Go out fluid and well head toxic and harmful monitoring parameter sets are displayed on same screen 27；Equipment and enter well gas control valve group State set is displayed on same screen 26；Drilling parameter display terminal 20 realizes data with comprehensive logging instrument using wired connection It is shared；Equipment condition monitoring, enter well gas monitoring, return out fluid inspection and well head toxic and harmful monitoring display terminal 26, Data radio station wireless network transmissions are used between 27 and corresponding outdoor instrument；Equipment remote control button 24 by data radio station without Gauze network is connected to realize to the remote of equipment with the device controller 45 on air compressor machine 48, nitrogen making machine 47 and supercharger 46 Process control；Enter the control that well gas remote control button 15 is realized to entering well gas control valve group 44 by wire cable 25；Well The emergent remote control button 14 of mouth is realized to well head 52, sediment outflow pipeline lock by data radio station wireless network and closing well control cabinet 12 The control of valve 7 and preventer 5；Audible-visual annunciator 13 according to pressure in well head toxic and harmful monitoring result and sediment outflow pipeline and Concentration of hydrogen sulfide monitoring result automated tos respond to send alarm signal.

Equipment condition monitoring includes the equipment being installed on air compressor machine 48, nitrogen making machine 47, supercharger 46 with control device 51 Status information capture processor 49, device controller 45 and data radio station radio network device 4 50；Information acquisition processor 49 The device parameter of collection includes engine loading, rotating speed, oil pressure, oil temperature, admission pressure, pressure at expulsion, fuel liquid level and compression Engine oil pressure；Information acquisition processor 49, device controller 45 and the equal integrated installation of radio transmitting device 50 control system in equipment In system；Information acquisition processor 49 is connected by serial port data line with radio transmitting device 50, then by data radio station network with One-way communication is realized in Centralized Monitoring room 16, by upper after the data modem that Centralized Monitoring room central processing unit 17 will be received Machine 18 is displayed on screen 26；The trigger signal of equipment state remote control button 24 passes to each equipment by Centralized Monitoring room 16 The radio transmitting device 50 for carrying, passes to device controller 45 and holds after the modulating and demodulating signal that radio transmitting device 50 will be received Row equipment start-stop is operated.

Enter well gas monitoring includes into well gas control valve group 44, nitrogen gas purity monitor 34 and pressure difference with control device 39 Formula intelligent flow meter 37；Enter well gas control valve group 44, nitrogen gas purity monitor 34 and differential intelligent flow meter 37 by downstream Direction installed in series in order is on gas supply line 43；The gas parameter of the measurement of nitrogen gas purity monitor 34 includes nitrogen gas purity；Pressure The gas parameter of the measurement of differential intelligent flow meter 37 includes gas temperature, humidity, pressure and gas flow；Nitrogen gas purity monitor 34 and the data that measure of differential intelligent flow meter 37 Centralized Monitoring room 16 is passed to by the radio transmitting device that instrument is carried, Included on screen by host computer 18 after the data modem that Centralized Monitoring room central processing unit 17 will be received；Enter well gas Control valve group 44 is controlled by the remote control button 15 in Centralized Monitoring room 16 by wire cable 25, and valve opening data are simultaneously Centralized Monitoring room 16, the data that Centralized Monitoring room central processing unit 17 will be received are fed back to by its radio transmitting device for carrying Shown on a screen 27 by host computer 18 after modulation /demodulation；

Nitrogen gas purity monitor 34 is made up of sampling pipe nipple 40, one-level pressure relief valve 36, second depressurized valve 35 and monitor 34； Gas sampled pressure is reduced to below 2.0MPa by one-level pressure relief valve 36, and be reduced to for gas sampled pressure by second depressurized valve 35 Near 0.1MPa.

Intelligent pressure/differential flowmeter 37 is made up of throttling pipe nipple 42, standard orifice plate 41 and flowmeter 37；Standard orifice plate 41 is installed In the pipe nipple 42 that throttles, its flow measurement precision 0.1m3/min, more than 450m3/min, meeting gas drilling will for measurement range Ask.

Returning out fluid monitoring device 22 includes sampling pipe nipple 1, dry dust removal case 23, wet dust removal case 31 and returns out stream Body monitor 30；Sampling pipe nipple 1 is arranged on sediment outflow pipeline 38, and dry dust removal case 23 and the import of wet dust removal case 31 pass through Flexible pipe is connected in parallel with sampling pipe nipple 1, and dry dust removal case 23 and the outlet of wet dust removal case 31 are supervised by flexible pipe with fluid is returned out Instrument 30 is surveyed to connect；Stop valve is separately installed with dry dust removal case 23 and the import of wet dust removal case 31 to be selected with according to gas type Select different dedusting methods；Return out fluid inspection instrument 30 measurement parameter include low-concentration methane content, high concentration methane content, Gas temperature, gas humidity, carbon dioxide content, oxygen content, hydrogen sulfide content and carbon monoxide content；Return out fluid inspection The data that instrument 30 is measured pass to Centralized Monitoring room 16, Centralized Monitoring room centre by the radio transmitting device 29 that instrument is carried Included on screen by host computer 18 after the data modem that reason device 17 will be received.

Well head toxic and harmful monitoring alarm 2 includes aspiration pump 1, monitor 4 and radio transmitting device 3；Pumping Pump 1 is installed on the upper surface of rotating blowout preventer 5, extracts the gas leaked from the seal of rotating blowout preventer 5；Monitor 4 is arranged on On rotating blowout preventer 5, the data for measuring are wirelessly transferred dress by what instrument was carried to be detected to the gas sample that aspiration pump 1 is obtained Put 3 and pass to Centralized Monitoring room 16, by upper after the data modem that the central processing unit 17 of Centralized Monitoring room 16 will be received Machine 18 shows on a screen 27.The parameter of the measurement of monitor 4 includes low-concentration methane content, high concentration methane content and hydrogen sulfide Content；Audible-visual annunciator 13 is excited to send alarm signal when well head toxic and harmful concentration reaches the alarming value of setting.

The fast automatic control device of well head includes closing well control cabinet 12, driller station 9 and its control pipeline 10,11, sediment outflow pipe Line liquid-operated flat valve 7 and its control pipeline 8.Driller station 9 is arranged in driller station, can be simultaneously closed off by controlling pipeline 10,11 Annular preventer 6 and opening liquid-operated flat valve 52；Closing well control cabinet 12 is arranged on driller station 9, according to the signal for receiving certainly Dynamic control driller station 9 is acted；Closing well control cabinet 12 utilizes wireless communication, excitation signal to be supervised to concentrate with Centralized Monitoring room 16 The emergent trigger signal of remote control button 14 of well head in control room 16 and return out the sediment outflow pipeline 38 that fluid inspection instrument 30 measures and press Power and concentration of hydrogen sulfide；When pressure in sediment outflow pipeline 38 or concentration of hydrogen sulfide can excite audible-visual annunciator 13 to send more than setting value Alarm signal, order closing well control cabinet 12 and driller station 9 are automatically switched off annular preventer 6, open relief line liquid-operated flat valve 52, sediment outflow pipeline liquid-operated flat valve 7 can also be simultaneously closed off according to setting；Closing well control cabinet 12 performs automatic closing well operating and setting The pressure value of sediment outflow pipeline 38 has 0.1MPa, 0.2MPa, 0.3MPa, the concentration of hydrogen sulfide value of setting have 10ppm, 20ppm, 30ppm, 40ppm。

Claims (1)

1. the fast automatic control device of well head of a kind of gas drilling safe-guard system, it is characterised in that：Including closing well control Case, driller station, relief line liquid-operated flat valve control pipeline, annular preventer control pipeline, sediment outflow pipeline liquid-operated flat valve and Sediment outflow pipeline liquid-operated flat valve controls pipeline, wherein, closing well control cabinet is connected with uni-directional wireless communication line with Centralized Monitoring room F, the remote control commands for transmitting well head, closing well control cabinet is by hydraulic line respectively to annular preventer, relief line Liquid-operated flat valve and sediment outflow pipeline liquid-operated flat valve are controlled.