Utility model content
The purpose of this utility model is to provide a kind of ocean type drilling parameter instrument system, can carry out Real-time Collection, process, transmission and display to the well data on ocean platform, bores record work provide important evidence for scene; Realize explosion-proof, corrosion-resistant design object, for the smooth use of the various kinds of equipment used on ocean platform provides safeguard simultaneously.
In order to achieve the above object, the utility model is achieved through the following technical solutions: a kind of ocean type drilling parameter instrument system, comprises: sensor unit, gathers the well data on ocean platform; The explosion-proof interface of multichannel CAN, its input is connected with described sensor unit, and the well data collected by sensor unit is transmitted by CAN; Explosion-proof data acquisition unit, its input is connected with the output of the described explosion-proof interface of multichannel CAN, the well data collected by CAN receiving sensor unit; Drilling well monitor, its input is connected with the output of described explosion-proof data acquisition unit, analyzes the well data collected, process and shows, and generates engineering parameter; Background computer, its input is connected with the output of described explosion-proof data acquisition unit and the output of drilling well monitor, receives the engineering parameter of well data and the drilling well monitor generation collected respectively, and carries out showing and storing.
Described sensor unit comprises: analog sensor, and its operating voltage is 15 ~ 25V, and output signal is 4 ~ 20mA; Digital sensors, its operating voltage is 9V, and output signal is 1 ~ 3mA.
Described analog sensor comprises vertical pressure sensor and weight transduser; Described digital sensors comprises pump and rushes sensor and drawworks sensor.
The output signal of the described explosion-proof interface of multichannel CAN comprises: C type CAN node, adopts two passage NAMUR intrinsic safety standard proximity switch inputs; Type B CAN node, adopts the input of single channel NAMUR intrinsic safety standard proximity switch; A type CAN node, adopts the input of single channel intrinsic safety two-wire system 4 ~ 20mA analog signal.
Described explosion-proof data acquisition unit comprises: signal interface board, and it is connected with the described explosion-proof interface of multichannel CAN by CAN; ARM master control borad, it is connected with described signal interface board; Network extender, it is connected with described signal interface board, and by Ethernet respectively with described drilling well monitor and background computer connecting communication; The well data transmitted by CAN is transferred to ARM master control borad by described signal interface board, after ARM master control borad to process according to communications protocol the well data received and analyzes, then transfer to drilling well monitor and background computer via signal interface board and network extender respectively according to communications protocol.
Described explosion-proof data acquisition unit also comprises: Switching Power Supply, and it is connected with described signal interface board and ARM master control borad respectively, to provide working power.
Described explosion-proof data acquisition unit also comprises: lightning protection module of power source, and it is connected with described Switching Power Supply and signal interface board.
Described explosion-proof data acquisition unit also comprises: signal lighting protection module, and its connection is arranged between described signal interface board and the explosion-proof interface of multichannel CAN.
Each sensor that described sensor unit comprises, the explosion-proof interface of multichannel CAN, explosion-proof data acquisition unit and drilling well monitor are provided with isolation explosion-resistant enclosure.
In sum, the ocean type drilling parameter instrument system that the utility model provides, can carry out Real-time Collection, process, transmission and display to the well data on ocean platform, bores record work provide important evidence for scene; Realize explosion-proof, corrosion-resistant design object, for the smooth use of the various kinds of equipment used on ocean platform provides safeguard simultaneously.
Detailed description of the invention
Below in conjunction with Fig. 1 and Fig. 2, by describing a preferably specific embodiment in detail, the utility model is further elaborated.
As shown in Figure 1, be ocean type drilling parameter instrument system provided by the utility model, comprise: sensor unit 1, gather the well data on ocean platform; Multichannel CAN(controller local area network, ControllerAreaNetwork) the explosion-proof interface 2 of bus, its input is connected with described sensor unit 1, the well data that sensor unit 1 collects is transmitted by CAN; Explosion-proof data acquisition unit 3, its input is connected with the output of the explosion-proof interface 2 of described multichannel CAN, the well data collected by CAN receiving sensor unit 1; Drilling well monitor 4, its input is connected with the output of described explosion-proof data acquisition unit 3, analyzes the well data collected, process and shows, and generates engineering parameter; Background computer 5, its input is connected with the output of described explosion-proof data acquisition unit 3 and the output of drilling well monitor 4, receives the engineering parameter of well data and drilling well monitor 4 generation collected respectively, and carries out showing and storing.
Described sensor unit 1 comprises: analog sensor, and its operating voltage is 15 ~ 25V, and output signal is 4 ~ 20mA; Digital sensors, its operating voltage is 9V, and output signal is the NAMUR signal of 1 ~ 3mA.
As shown in Figure 1, described sensor unit 1 comprises: vertical pressure sensor 11, weight transduser 12, pump rushes sensor 13 and drawworks sensor 14 etc.Wherein, vertical pressure sensor 11 is analog sensor, is generally arranged on the standpipe on drilling floor surface, for gathering measurement standpipe pressure.Weight transduser 12 is analog sensor, is connected with the joint of derrick dead line anchor, for gathering measurement hook weigh.Pump rushes sensor 13 for digital sensors, is arranged on mud pump head pull bar or on slush pump belt pulley, for gathering measurement strokes per minute.And drawworks sensor 14 is digital sensors, be arranged on winch axle, by gathering hook height, drilling depth and the hook speed etc. calculating and can obtain in drilling process.
The output signal of the explosion-proof interface 2 of described multichannel CAN comprises: C type CAN node, with drawworks sensor 14 with the use of, it adopts two passage NAMUR intrinsic safety standard proximity switch inputs, the setting of counter values is carried out by CAN, simultaneously according to 90 degree of phase relation forward countings or the negative counting of two switch inputs, carry out 4 frequency multiplication countings according in two switch inputs, error is ± 1, allows the frequency conducted interviews by CAN to be up to 10Hz; Wherein, setting value and the output valve of counter values are count value, and unit is umber of pulse, and data type is 16bits integer; Type B CAN node, with pump rush sensor 13 with the use of, it adopts single channel NAMUR intrinsic safety standard proximity switch to input, frequency range be 0 ~ 1920 punching/point, allowable error 1 rushes/point; Wherein, output valve is frequency number, unit for punching/point, data type is 16bits integer; A type CAN node, main and analog sensor (comprising vertical pressure sensor 11 and weight transduser 12 etc.) with the use of, it adopts single channel intrinsic safety two-wire system 4 ~ 20mA analog signal to input, exporting digital quantity is DeviceNet protocol digital signals, electric current number unit is uA value, and data type is 16bits integer.
In the present embodiment, the maximum node number of every section of CAN is 64, makes the number of sensors in sensor unit 1 also can extend to 64; Output analog quantity is 4 ~ 20mA, and the outside 24V of its power acquisition, 4 ~ 20mA is positive source just very.The well data of collection carries out isolating and signal transacting by the explosion-proof interface 2 of described multichannel CAN, is then transferred to explosion-proof data acquisition unit 3 by CAN.
As shown in Figure 2, described explosion-proof data acquisition unit 3 comprises: signal interface board 31, and it is connected with the explosion-proof interface 2 of described multichannel CAN by CAN; ARM master control borad 32, it is connected with described signal interface board 31; Network extender 33, it is connected with described signal interface board 31, and by Ethernet respectively with described drilling well monitor 4 and background computer 5 connecting communication, support the two-shipper dual control of drilling well monitor 4 and background computer 5; The well data transmitted by CAN is transferred to ARM master control borad 32 by described signal interface board 31, after ARM master control borad 32 to process according to communications protocol the well data received and analyzes, then transfer to drilling well monitor 4 and background computer 5 via signal interface board 31 and network extender 33 respectively according to communications protocol.
Described explosion-proof data acquisition unit 3 also comprises: Switching Power Supply 34, it is connected with described signal interface board 31 and ARM master control borad 32 respectively, 220V alternating current is converted to 24V direct current to export, for signal interface board 31 and ARM master control borad 32 provide working power.
Described explosion-proof data acquisition unit 3 also comprises: lightning protection module of power source 35; it is connected with described Switching Power Supply 34 and signal interface board 31; the 24V direct current of Switching Power Supply 34 output is played to the effect of lightning protection, and control to report to the police by signal interface board 31.
Described explosion-proof data acquisition unit 3 also comprises: signal lighting protection module 36; its connection is arranged between described signal interface board 31 and the explosion-proof interface 2 of multichannel CAN; the well data transmitted by CAN is played to the effect of lightning protection, and control to report to the police by signal interface board 31.
Each sensor that described sensor unit 1 comprises, the explosion-proof interface of multichannel CAN 2, explosion-proof data acquisition unit 3 and drilling well monitor 4 are provided with isolation explosion-resistant enclosure, both the requirement of the full explosion proof and corrosion protection of situ of drilling well had been met, the filtering impact of part interfering signal on sensor useful signal again, improves precision and stability.Further, the making material of described isolation explosion-resistant enclosure have passed through anticorrosion, aseismatic design, and degree of protection, more than IP65, can meet the requirement of on-the-spot bad working environments.
And all cables all adopt cable for ship in the utility model, to make it possible to meet the requirement worked in the saturated atmospheric environment of ocean salt fog.
The ocean type drilling parameter instrument system that the utility model provides, its specific works principle is as described below.The supplemental characteristic of each detected object in sensor unit 1 Real-time Collection each sensor location region, the well data of sensor unit 1 Real-time Collection is transferred to explosion-proof data acquisition unit 3 by CAN by the explosion-proof interface of multichannel CAN 2, drilling well monitor 4 is transferred to after explosion-proof data acquisition unit 3 pairs of well data process according to communications protocol, by after dissection process to generate various engineering parameter, and this project parameter is transferred to background computer 5 by Ethernet, reach the object of monitoring in real time, provide important evidence for ocean platform bores well logging work.
In sum, the ocean type drilling parameter instrument system that the utility model provides, can carry out Real-time Collection, process, transmission and display to the well data on ocean platform, bores record work provide important evidence for scene; Realize explosion-proof, corrosion-resistant design object, for the smooth use of the various kinds of equipment used on ocean platform provides safeguard simultaneously.
Although content of the present utility model has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple amendment of the present utility model and substitute will be all apparent.Therefore, protection domain of the present utility model should be limited to the appended claims.