CN105569632A - Safety management control device for annulus in oil jacket of gas well and management control method for management control device - Google Patents
Safety management control device for annulus in oil jacket of gas well and management control method for management control device Download PDFInfo
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- CN105569632A CN105569632A CN201610019060.7A CN201610019060A CN105569632A CN 105569632 A CN105569632 A CN 105569632A CN 201610019060 A CN201610019060 A CN 201610019060A CN 105569632 A CN105569632 A CN 105569632A
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- annular space
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
Abstract
The invention discloses a safety management control device for an annulus in an oil jacket of a gas well and an operation method for the management control device, and belongs to the technical field of oil gas well safety. The method for the safety management control device for the annulus in the oil jacket of the gas well has the key points that the annulus fluid level is monitored through an annulus fluid level monitor; a metal corrosion monitor device monitors the corrosion condition of an annulus medium to a jacket pipe and an oil pipe; the annulus medium is sampled through a gas sampling device and a fluid sampling device, and the performance change of the annulus medium is regularly monitored; an annulus fluid is collected through a sewage tank, so that the annulus fluid can be safely discharged; and annulus gas is discharged through a blowout preventer of a well field. According to the safety management control device, the installation and construction processes of the whole device are simple and convenient; an independent and safe pipeline system is formed; various parameters of the annulus of the gas well can be accurately monitored; the operation process is simple and convenient; and other work of the gas well is not influenced.
Description
Technical field
The present invention relates to a kind of gas well oil jacket annular space security management and control device and management-control method thereof, belong to Oil/gas Well security technology area.
Background technology
Along with the development of industrial gas oil, the natural gas well is produced and is mostly faced high temperature, high pressure or the high subsurface environment containing corrosive gas.The abnormal phenomenon with pressure of the annular spaces such as Technology In Gas Well At Home And Abroad oil jacket annular space, skill pipe ring are empty increases gradually, and annular space (SCP) with pressure refers to that the annular pressure at well head place returns to the phenomenon of stress level before release again after release.Oil/gas Well is all made up of plurality of layers sleeve pipe, forms several annular spaces.Different according to annular space present position, annular space can be expressed as A annular space, B annular space, C annular space from inside to outside successively.A annular space represents the annular space between oil pipe and production casing, and B annular space represents the annular space between production casing and last layer intermediate casing adjacent with it, up represents the annular space between every layer of sleeve pipe and last layer sleeve pipe adjacent with it afterwards in alphabetical order.The main cause of gas well annular space generation with pressure has: the annular space that the with pressure and seal failure of the annular space that brings out of with pressure, the annular space channelling of annular space that the annular space that temperature causes annular fluid thermal expansion to be brought out is with pressure, underground work applies causes is with pressure.Gas well annular space is with pressure affects wellbore integrity, seriously jeopardizes pit shaft essential safety, is the common difficulty that faces of whole world petroleum industrial circle and safety problem.
At present; protect gas well oil jacket annular space, the technical measures of minimizing annular space generation with pressure annotates annular protective liquid in oil jacket annular space; it has the effect of sterilization, scale removal, inhibition, can reduce the pressure reduction between oil pipe and annular space simultaneously, alleviates the pressure that casing head and packer bear.For the annular space situation with pressure that part gas well still occurs, the means usually adopted are by direct for annular space pressure release.But these measures are perfect not enough, one is the monitoring lacking annular protective liquid liquid level, can not the Timeliness coverage annular protective liquid leakage situation that may exist and auxiliary underground work; Two is lack to carry out dynamic monitoring to the parameter such as pressure, temperature of the annular protective liquid corrosion mitigating effect in annular space and liquid phase medium, and cannot carry out sample analysis, causes effectively analyzing judging annular space reason with pressure and taking appropriate measures.
For the problems referred to above, need to study a kind of gas well oil jacket annular space security management and control device and management-control method thereof, solve five problems: one is the liquid level of monitoring A annular space; Two is pressure, temperature, the flow of monitoring oil jacket annular space medium; Three is detect annular space medium to the corrosion rate of tubing; Four is open flows of gate ring air body; Five is the every monitored data according to monitoring oil jacket annular space, judges annular space reason with pressure.
Summary of the invention
The object of the invention is to provide a kind of gas well oil jacket annular space security management and control device and management-control method thereof, for monitor liquid phase pressure medium in oil jacket annular space, temperature, flow, to corrosion of metal situation and to control the abnormal annular space of oil jacket with pressure.
For achieving the above object, the present invention is by the following technical solutions:
A kind of gas well oil jacket annular space security management and control device, mainly comprises casing head (23), production tree (24), metal erosion checkout gear (35), gas-liquid separation device (37), exhaust line (39), tapping line (40), open flow igniting pipeline (48), gas sample collector (50), liquid sampler (46), Water Tank (53), gas flowmeter (41).Upper A annular space blowdown line (58) one end of described production tree (24) is by the upper 7# gate valve (10) of production tree (24), 8# gate valve (11) is communicated with A annular space (63) in wellbore apparatus (59), upper B annular space blowdown line (18) one end of described casing head (23) and the upper 9# gate valve (15) of casing head (23), 10# gate valve (17) is communicated with B annular space (64) in wellbore apparatus (59), upper C annular space blowdown line (22) one end of described casing head (23) and the upper 11# gate valve (19) of casing head (23), 12# gate valve (21) is communicated with C annular space (65) in wellbore apparatus (59), 1# stop valve (13) is gone up with production tree (24) in upper annular space liquid level monitor (14) one end of described production tree (24), 1# pressure sensor (12) has and connects, and the signal cable of 1# pressure sensor (12), 2# pressure sensor (16), 3# pressure sensor (20), gas flowmeter (41), A annulus liquid level monitor (14) comes together in data terminal processor (67), the other end of A annular space blowdown line (58) and B annular space blowdown line (18), be connected with metal erosion checkout gear (35) by 4# stop valve (34) in corrosion detecting element (61) after the other end of C annular space blowdown line (22) collects, metal erosion checkout gear (35) is connected with gas-liquid separation device (37) by 1# control valve (36) in annular space medium sampling unit (62), gas-liquid separation device (37) top is connected to exhaust line (39), exhaust line (39) is provided with 7# stop valve (43), gas flowmeter (41), 1# thermometer (47), 5# pressure meter (49), 9# stop valve (51), gas sample mouth (50), exhaust line (39) is connected with relief line (48) by 21# gate valve (55) in open flow igniting dress unit (60), in annular space medium sampling unit (62), gas-liquid separator (37) bottom is connected to tapping line (40), tapping line (40) is provided with 6# stop valve (42), 4# pressure meter (44), 8# stop valve (45), liquid sampler (46), and tapping line (40) is connected with Water Tank (53) by 20# gate valve (52), Water Tank (53) is provided with content gauge (54), relief line (48) is connected by the upper 3# stop valve (33) of 5# stop valve (38) and christmas tree (24).
The method of operating of the gas well oil jacket annular space security management and control device that the present invention relates to comprises the following steps:
1, casing head (23) upper 7# gate valve (10), 9# gate valve (15), 11# gate valve (19) is often opened;
2,1# pressure sensor (12), 2# pressure sensor (16), 3# pressure sensor (20) is started, every the pressure signal that 1min collection 1# pressure sensor (12), 2# pressure sensor (16), 3# pressure sensor (20) send, and record corresponding A annular space (63) pressure value, B annular space (64) pressure value, C annular space (65) pressure value;
3, the upper 1# stop valve (13) of casing head (23) is opened;
4, start A annulus liquid level monitor (14), monitoring A annular space (63) level, gathers every 15min and records A annular space (63) level in terminal handler;
5, close A annulus liquid level monitor (14), close 1# stop valve (13);
6,8# gate valve (11), 10# gate valve (17), 12# gate valve (21) is opened;
7, open 1# control valve (34), make annular space medium by metal erosion checkout gear (40);
8, open 5# stop valve (36), make annular space medium by gas-liquid separation device (37);
9, open 7# stop valve (43) and 9# stop valve (51), after taking out 1-5L annular space gas phase media, close 9# stop valve (51);
10, open 6# stop valve (42) and 8# stop valve (45), after taking out 0.5-1L annular space liquid phase Jie, close 8# stop valve (45);
11, open 21# gate valve (55), 22# gate valve (56), gas enters the igniting of open flow igniter (57) open flow;
12, after liquid sampling terminates, open 20# gate valve (52), liquid enters Water Tank (53);
13, gather the data of gas flowmeter (41) every 30s, and record corresponding gas medium flow;
14, read 4# pressure meter (44), record liquid phase medium pressure every 1h;
15, read 1# thermometer (47), 5# pressure meter (49), record gas phase media temperature, pressure every 1h;
16,8# gate valve (11) is closed after A annular space (63) pressure value reduces by 50%;
17,4# stop valve (34), 1# control valve (36), 6# stop valve (42), 8# gate valve (11), 10# gate valve (17), 12# gate valve (21) is closed successively when the data that 1# pressure sensor (12) gathers show normal;
18, confirm, after the open flow of well site, to close 21# gate valve (55), 22# gate valve (56);
19,10# gate valve (17), 12# gate valve (21) is opened;
20, step 7 is repeated to 15;
21,10# gate valve (17) is closed after B annular space (64) pressure value reduces by 50%;
22,4# stop valve (34), 5# stop valve (36), 6# stop valve (42), 10# gate valve (17), 12# gate valve (21) is closed successively when the data that 2# pressure sensor (16) gathers show normal;
23, step 18 is repeated;
24,12# gate valve (21) is opened;
25, step 7 is repeated to 15;
26,12# gate valve (21) is closed after C annular space (65) pressure value reduces by 50%;
27,4# stop valve (34), 5# stop valve (36), 6# stop valve (42), 12# gate valve (21) is closed successively when the data that 3# pressure sensor (19) gathers show normal;
28, step 18 is repeated.
Beneficial effect of the present invention is:
(1) this device monitors the pressure condition of A annular space (63), B annular space (64), C annular space (65) simultaneously;
(2) this device monitoring annular space medium is to the corrosion condition of pit shaft tubing;
(3) this device can be separated the liquid phase medium in annular space, and samples respectively, realizes the further evaluation to gas well annular space safe condition by the character analyzing liquid phase medium;
(4) gas after being separated leads to relief line igniting open flow, and the liquid collection after separation enters sewage and fills with, can not to environment;
(5) according to every monitored data of monitoring oil jacket annular space, annular space reason with pressure is judged;
(6) form a set of independent, safe pipe-line system, can monitor gas well annular space parameters accurately, operating process is simple and convenient, does not affect other operations of gas well.
Accompanying drawing explanation
Fig. 1 is gas well oil jacket annular space control device flow chart.
In figure: 1, 1# pressure meter, 2, 1# gate valve, 3, 2# gate valve, 4, 3# gate valve, 5, 2# pressure meter, 6, 4# gate valve, 7, 5# gate valve, 8, 3# pressure meter, 9, 6# gate valve, 10, 7# gate valve, 11, 8# gate valve, 12, 1# pressure sensor, 13, 1# stop valve, 14, annulus liquid level monitor, 15, 9# gate valve, 16, 2# pressure gauge sensor, 17, 10# gate valve, 18, B annular space blowdown line, 19, 11# gate valve, 20, 3# pressure gauge sensor, 21, 12# gate valve, 22, C annular space blowdown line, 23, casing head, 24, production tree, 25, 13# gate valve, 26, 14# gate valve, 27, 2# stop valve, 28, 15# gate valve, 29, 16# gate valve, 30, 17# gate valve, 31, 18# gate valve, 32, 19# gate valve, 33, 3# stop valve, 34, 4# stop valve, 35, metal erosion checkout gear, 36, 1# control valve, 37, gas-liquid separation device, 38, 5# stop valve, 39, exhaust line, 40, tapping line, 41, gas flowmeter, 42, 6# stop valve, 43, 7# stop valve, 44, 4# pressure meter, 45, 8# stop valve, 46, liquid sampler, 47, 1# thermometer, 48, relief line, 49, 5# pressure meter, 50, gas sample collector, 51, 9# stop valve, 52, 20# gate valve, 53, Water Tank, 54, content gauge, 55, 21# gate valve, 56, 22# gate valve, 57, open flow igniter, 58, A annular space blowdown line, 59, wellbore apparatus, 60, open flow igniting unit, 61, corrosion detecting element, 62, annular space medium sampling unit, 63, A annular space, 64, B annular space, 65, C annular space, 66, wellhead assembly unit, 67, data terminal processor.
Fig. 2 is signals collecting flow chart.
Fig. 3 is that the A annular space that example is caused by seepage is with pressure.
Fig. 4 is that the A annular space that example is caused by pit shaft thermal expansion is with pressure.
Fig. 5 is that example has pressure transmission by A, B annular space, is interconnected.
Detailed description of the invention
Below in conjunction with accompanying drawing, enforcement of the present invention is described further.
A kind of gas well oil jacket annular space security management and control device, is characterized in that comprising pit shaft unit (59), wellhead assembly unit (66), corrosion detecting element (61), annular space medium sampling unit (62), open flow igniting unit (60).Described pit shaft unit (59) comprises A annular space (63), B annular space (64), C annular space (65), and described wellhead assembly unit (66) comprises casing head (23), production tree (24), described casing head (23) comprises 3# gate valve (4), 4# gate valve (6), 5# gate valve (7), 6# gate valve (9), B annular space blowdown line (18), C annular space blowdown line (22), 2# pressure meter (5), 3# pressure meter (8), 2# pressure sensor (16), 3# pressure sensor (20), described production tree (24) comprises gate valve (2), gate valve (3), gate valve (10), gate valve (11), A annular space blowdown line (58), stop valve (13), A annulus liquid level monitor (14), 1# pressure sensor (12), 13# gate valve (25), 14# gate valve (26), 15# gate valve (28), 16# gate valve (29), 17# gate valve (30), 18# gate valve (31), 19# gate valve (32), 2# stop valve (27), 3# stop valve (33), data terminal processor (67).
Described corrosion detecting element (61) comprises 4# stop valve (34), corrosion testing device (35), described annular space medium sampling unit (62) comprises 1# control valve (36), 7# stop valve (43), 6# stop valve (42), 8# stop valve (45), 9# stop valve (51), 20# gate valve (52), gas-liquid separation device (37), exhaust line (39), tapping line (40), flow meter (41), gas sample collector (50), liquid sampler (46), Water Tank (53), content gauge (54), 5# pressure meter (49), 1# thermometer (47).
Described well site open flow unit (60) comprises 5# stop valve (38), 22# gate valve (56), blow-out release device (57), open flow igniting pipeline (48).
Upper A annular space blowdown line (58) one end of described production tree (24) is by the upper 7# gate valve (10) of production tree (24), 8# gate valve (11) is communicated with A annular space in wellbore apparatus (59), B annular space blowdown line (18) one end and the upper 9# gate valve (15) of casing head (23), 10# gate valve (17) is communicated with B annular space (64) in wellbore apparatus (59), C annular space blowdown line (22) one end and casing head 23) upper 11# gate valve (19), 12# gate valve (21) is communicated with C annular space (65) in wellbore apparatus (59), annulus liquid level monitor (14) one end and the upper 1# stop valve (13) of production tree (24), 1# pressure sensor (12) has and connects, the other end of A annular space blowdown line (58) and B annular space blowdown line (18), be connected with metal erosion checkout gear (35) by 1# control valve (34) in corrosion detecting element (61) after the other end of C annular space blowdown line (22) collects, metal erosion checkout gear (35) is connected with gas-liquid separation device (37) by 5# stop valve (36) in annular space medium sampling unit (62), gas-liquid separation device (37) top is connected to exhaust line (39), exhaust line (39) is provided with 7# stop valve (43), vapor phase stream gauge (41), 1# thermometer (47), 5# pressure meter (49), 9# stop valve (51), gas sample collector (50), exhaust line (39) is connected with relief line (48) by 21# gate valve (55) in well site open flow igniting dress unit (60), in annular space medium sampling unit (62), gas-liquid separator (37) bottom is connected to tapping line (40), tapping line (40) is provided with 6# stop valve (42), 4# pressure meter (44), 8# stop valve (45), liquid sampler (46), and tapping line (40) is connected with Water Tank (53) by 20# gate valve (52), Water Tank (53) is provided with content gauge (54), relief line is connected by the upper 3# stop valve (33) of 5# stop valve (38) and christmas tree (24), the signal cable of 1# pressure sensor (12), 2# pressure sensor (16), 3# pressure sensor (20), vapor phase stream gauge (41), A annulus liquid level monitor (14) comes together in data terminal processor (67).
The method of operating of the gas well oil jacket annular space security management and control device that the present invention relates to comprises the following steps:
1, casing head (23) upper 7# gate valve (10), 9# gate valve (15), 11# gate valve (19) is often opened;
2,1# pressure sensor (12), 2# pressure sensor (16), 3# pressure sensor (20) is started, every the pressure signal that 1min collection 1# pressure sensor (12), 2# pressure sensor (16), 3# pressure sensor (20) send, and record corresponding A annular space (63) pressure value, B annular space (64) pressure value, C annular space (65) pressure value;
3, the upper 1# stop valve (13) of casing head (23) is opened;
4, start A annulus liquid level monitor (14), monitoring A annular space (63) level, gathers every 15min and records A annular space (63) level in terminal handler;
5, close A annulus liquid level monitor (14), close 1# stop valve (13);
6,8# gate valve (11), 10# gate valve (17), 12# gate valve (21) is opened;
7, open 1# control valve (34), make annular space medium by metal erosion checkout gear (40);
8, open 5# stop valve (36), make annular space medium by gas-liquid separation device (37);
9, open 7# stop valve (43) and 9# stop valve (51), after taking out 1-5L annular space gas phase media, close 9# stop valve (51);
10, open 6# stop valve (42) and 8# stop valve (45), after taking out 0.5-1L annular space liquid phase Jie, close 8# stop valve (45);
11, open 21# gate valve (55), 22# gate valve (56), gas enters well site open flow igniter (57) open flow igniting;
12, after liquid sampling terminates, open 20# gate valve (52), liquid enters Water Tank (53);
13, gather the data of gas flowmeter (41) every 30s, and record corresponding gas medium flow;
14, read 4# pressure meter (44), record liquid phase medium pressure every 1h;
15, read 1# thermometer (47), 5# pressure meter (49), record gas phase media temperature, pressure every 1h;
16,8# gate valve (11) is closed after A annular space (63) pressure value reduces by 50%;
17,4# stop valve (34), 1# control valve (36), 6# stop valve (42), 8# gate valve (11), 10# gate valve (17), 12# gate valve (21) is closed successively when the data that 1# pressure sensor (12) gathers show normal;
18, confirm, after the open flow of well site, to close 21# gate valve (55), 22# gate valve (56);
19,10# gate valve (17), 12# gate valve (21) is opened;
20, step 7 is repeated to 15;
21,10# gate valve (17) is closed after B annular space (64) pressure value reduces by 50%;
22,4# stop valve (34), 5# stop valve (36), 6# stop valve (42), 10# gate valve (17), 12# gate valve (21) is closed successively when the data that 2# pressure sensor (16) gathers show normal;
23, step 18 is repeated;
24,12# gate valve (21) is opened;
25, step 7 is repeated to 15;
26,12# gate valve (21) is closed after C annular space (65) pressure value reduces by 50%;
27,4# stop valve (34), 5# stop valve (36), 6# stop valve (42), 12# gate valve (21) is closed successively when the data that 3# pressure sensor (19) gathers show normal;
28, step 18 is repeated;
29: using casing pressure pressure reduce by 20% time and pressure as the origin of coordinates, abscissa is the time, ordinate be casing pressure mapping.Example is as shown in chart:
A: as shown in Figure 3: the A annular space caused by seepage is with pressure.
B: as shown in Figure 4: the A annular space that pit shaft thermal expansion causes is with pressure.
C: as shown in Figure 5: A, B annular space has pressure transmission, is interconnected.
Claims (10)
1. a gas well oil jacket annular space security management and control device, is characterized in that comprising pit shaft unit (59), wellhead assembly unit (66), corrosion detecting element (61), annular space medium sampling unit (62), open flow igniting unit (60).
2. a kind of gas well oil jacket annular space security management and control device as claimed in claim 1, it is characterized in that: described pit shaft unit (59) comprises A annular space (63), B annular space (64), C annular space (65), described wellhead assembly unit (66) comprises casing head (23), production tree (24).
3. a kind of gas well oil jacket annular space security management and control device as claimed in claim 2, is characterized in that: described casing head (23) comprises 3# gate valve (4), 4# gate valve (6), 5# gate valve (7), 6# gate valve (9), B annular space blowdown line (18), C annular space blowdown line (22), 2# pressure meter (5), 3# pressure meter (8), 2# pressure sensor (16), 3# pressure sensor (20), described production tree (24) comprises 1# gate valve (2), 2# gate valve (3), 7# gate valve (10), 8# gate valve (11), A annular space blowdown line (58), 1# stop valve (13), annulus liquid level monitor (14), 1# pressure sensor (12), 13# gate valve (25), 14# gate valve (26), 15# gate valve (28), 16# gate valve (29), 17# gate valve (30), 18# gate valve (31), 19# gate valve (32), 2# stop valve (27), 3# stop valve (33), data terminal processor (67).
4. a kind of gas well oil jacket annular space security management and control device as claimed in claim 1, is characterized in that: described corrosion detecting element (61) comprises 4# stop valve (36), metal erosion checkout gear (35).
5. a kind of gas well oil jacket annular space security management and control device as claimed in claim 1, it is characterized in that: described annular space medium sampling unit (62) comprises 1# control valve (36), 7# stop valve (43), 6# stop valve (42), 8# stop valve (45), 9# stop valve (51), 20# gate valve (52), gas-liquid separation device (37), exhaust line (39), tapping line (40), gas flowmeter (41), gas sample collector (50), liquid sampler (46), Water Tank (53), content gauge (54), 5# pressure meter (49), 1# thermometer (47).
6. a kind of gas well oil jacket annular space security management and control device as claimed in claim 1, is characterized in that: described well site open flow unit (60) comprises 5# stop valve (38), 22# gate valve (56), blow-out release device (57), open flow igniting pipeline (48).
7. a kind of gas well oil jacket annular space security management and control device as claimed in claim 1, it is characterized in that: upper A annular space blowdown line (58) one end of production tree (24) is by the upper 7# gate valve (10) of production tree (24), 8# gate valve (11) is communicated with A annular space (63) in wellbore apparatus (59), B annular space blowdown line (18) one end and the upper 9# gate valve (15) of casing head (23), 10# gate valve (17) is communicated with B annular space (64) in wellbore apparatus (59), C annular space blowdown line (22) one end and casing head 23) upper 11# gate valve (19), 12# gate valve (21) is communicated with C annular space (65) in wellbore apparatus (59), annulus liquid level monitor (14) one end and the upper 1# stop valve (13) of production tree (24), 1# pressure sensor (12) has and connects, the other end of A annular space blowdown line (58) and B annular space blowdown line (18), be connected with metal erosion checkout gear (35) by 4# stop valve (34) in corrosion detecting element (61) after the other end of C annular space blowdown line (22) collects, metal erosion checkout gear (35) is connected with gas-liquid separation device (37) by 1# control valve (36) in annular space medium sampling unit (62), gas-liquid separation device (37) top is connected to exhaust line (39), exhaust line (39) is provided with 7# stop valve (43), vapor phase stream gauge (41), 1# thermometer (47), 5# pressure meter (49), 9# stop valve (51), gas sample collector (50), exhaust line (39) is connected with relief line (48) by 21# gate valve (55) in well site open flow igniting unit (60), in annular space medium sampling unit (62), gas-liquid separator (37) bottom is connected to tapping line (40), tapping line (40) is provided with 6# stop valve (42), 4# pressure meter (44), 8# stop valve (45), liquid sampler (46), and tapping line (40) is connected with Water Tank (53) by 20# gate valve (52), Water Tank (53) is provided with content gauge (54), relief line is connected by the upper 3# stop valve (33) of 5# stop valve (38) and christmas tree (24), the signal cable of 1# pressure sensor (12), 2# pressure sensor (16), 3# pressure sensor (20), vapor phase stream gauge (41), A annulus liquid level monitor (14) comes together in data terminal processor (67).
8. adopt a kind of gas well oil jacket annular space security management and control device as claimed in claim 1, realize the on-line monitoring to A annular space (63) pressure, B annular space (64) pressure, C annular space (65) pressure and record, it is characterized in that comprising the following steps:
Step one: often open casing head (23) upper 7# gate valve (10), 9# gate valve (15), 11# gate valve (19);
Step 2: start 1# pressure sensor (12), 2# pressure sensor (16), 3# pressure sensor (20), every the pressure signal that 1min collection 1# pressure sensor (12), 2# pressure sensor (16), 3# pressure sensor (20) send, and record corresponding A annular space (63) pressure value, B annular space (64) pressure value, C annular space (65) pressure value.
9. adopt a kind of gas well oil jacket annular space security management and control device as claimed in claim 1, realize, to the liquid level monitoring method of A annular space, it is characterized in that comprising the following steps:
Step one: open the upper 1# stop valve (13) of casing head (23);
Step 2: start A annulus liquid level monitor (14), monitoring A annular space (63) level, gathers every 15min and records A annular space (63) level in terminal handler;
Step 3: close A annulus liquid level monitor (14); Close 1# stop valve (13).
10. adopt a kind of gas well oil jacket annular space security management and control device as claimed in claim 1, realize the management-control method to gas well oil jacket annular space, it is characterized in that comprising the following steps:
Step one: open 8# gate valve (11), 10# gate valve (17), 12# gate valve (21);
Step 2: open 4# stop valve (34), makes annular space medium by metal erosion checkout gear (35);
Step 3: open 1# control valve (36), makes annular space medium by gas-liquid separation device (37);
Step 4: open 7# stop valve (43) and 9# stop valve (51), after taking out 1-5L annular space gas phase media, closes 9# stop valve (51);
Step 5: open 6# stop valve (42) and 8# stop valve (45), after taking out 0.5-1L annular space liquid phase Jie, closes 8# stop valve (45);
Step 6: open 21# gate valve (55), 22# gate valve (56), gas enters well site open flow igniter (57) open flow igniting;
Step 7: after liquid sampling terminates, opens 20# gate valve (52), and liquid enters Water Tank (53);
Step 8: the data gathering gas flowmeter (41) every 30s, and record corresponding gas medium flow;
Step 9: read 4# pressure meter (44), records liquid phase medium pressure every 1h;
Step 10: read 1# thermometer (47), 5# pressure meter (49), records gas phase media temperature, pressure every 1h;
Step 11: close 8# gate valve (11) after A annular space (63) pressure value reduces by 50%;
Step 12: close 4# stop valve (34), 1# control valve (36), 6# stop valve (42), 8# gate valve (11), 10# gate valve (17), 12# gate valve (21) successively when the data display that 1# pressure sensor (12) gathers is normal;
Step 13: after confirming well site open flow, closes 21# gate valve (55), 22# gate valve (56);
Step 14: open 10# gate valve (17), 12# gate valve (21);
Step 15: repeat step 2 to step 10;
10# gate valve (17) is closed after step 10 six: B annular space (64) pressure value reduces by 50%;
4# stop valve (34), 1# control valve (36), 6# stop valve (42), 10# gate valve (17), 12# gate valve (21) is closed successively when the data display that step 10 seven: 2# pressure sensor (16) gathers is normal;
Step 10 nine: repeat step 13;
Step 2 ten: open 12# gate valve (21);
Step 2 11: repeat step 2 to step 10;
12# gate valve (21) is closed after step 2 12: C annular space (65) pressure value reduces by 50%;
4# stop valve (34), 1# control valve (36), 6# stop valve (42), 12# gate valve (21) is closed successively when the data display that step 2 14: 3# pressure sensor (20) gathers is normal;
Step 2 15: repeat step 13.
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