CN206399794U - Simulate the drill rod materials corrosion fatigue test apparatus of actual well drilled environment - Google Patents
Simulate the drill rod materials corrosion fatigue test apparatus of actual well drilled environment Download PDFInfo
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- CN206399794U CN206399794U CN201720045371.0U CN201720045371U CN206399794U CN 206399794 U CN206399794 U CN 206399794U CN 201720045371 U CN201720045371 U CN 201720045371U CN 206399794 U CN206399794 U CN 206399794U
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Abstract
The utility model discloses a kind of drill rod materials corrosion fatigue test apparatus for simulating actual well drilled environment, including cylinder, end cap, monitoring system, the circulatory system and fatigue tester, sensing heater is provided with around cylinder, sensing heater imitates Formation heat and cylinder is heated, and is tested with the resistance to corrosion fatigue for carrying out sample under Different Strata i.e. different temperatures；In end cap insertion cylinder, junction sets O-shaped corrosion-resistant sealing ring；Clamping hole is provided with end cap and monitoring holes pass through O-shaped corrosion-resistant sealing ring and spring fitted seal in inner side, it is ensured that fatigue tester sealing of device in periodicity loading procedure ensures that the accuracy of testing machine test；The utility model sealing is strong, safe and reliable, it is possible to achieve different temperatures, pressure, flow rate of liquid, oxygen content, CO2Content, H2The test environments such as S contents, can largely simulate real well environment, can meet the test request to drilling rod sample resistance to corrosion fatigue performance.
Description
Technical field
The utility model is related to drill rod materials Corrosion Fatigue Properties experiment field, more particularly to a kind of actual brill of simulation
The drill rod materials corrosion fatigue test apparatus of well environment.
Background technology
Have the generation that drill string failure causes drilling accident, drill string often in fields such as petroleum drilling and mining, geological drillings
Part failure caused by stress corrosion, thus resistance to corrosion fatigue property relationship of the drill rod materials in drilling environment
The life-span of drill string.At present, it is only capable of determining fatigue performance of the drill rod materials in air weight, and can not be to drill rod materials in drilling well
Corrosion Fatigue Properties in environment are measured.
In drilling process, because the difference on stratum causes the parameters such as drilling fluid temperature, pressure, flow velocity to change；Meeting
During to special formation, the CO in stratum2Or H2In the sour gas such as S intrusion drilling fluid, the corrosivity of drilling fluid is improved.Temperature
The mechanical property of material is affected, flow velocity and pressure are then embodied in drilling fluid in the erosion of drill string, once crackle is produced, boring
The corrosive environment of well liquid can accelerate the extension of crackle, cause the corrosion-resistant of drill rod materials fatigue can decline rapidly.Therefore need badly and set
Meter more can really simulate the corrosion fatigue test apparatus of actual well drilled environment, to the brill of drill rod materials at different conditions
Resistance to corrosion fatigue performance in well liquid is measured.
The content of the invention
The purpose of this utility model is to provide a kind of drill rod materials corrosion fatigue test side of more real drilling environment
Method and device, are measured to the resistance to corrosion fatigue performance in the drilling fluid of drill rod materials at different conditions.
The utility model includes cylinder, end cap, monitoring system, the circulatory system and fatigue tester；
Described cylinder bottom, which is provided with around water inlet, air inlet, cylinder, is provided with sensing heater, sensing heater
Imitate Formation heat to heat cylinder, tested with the resistance to corrosion fatigue for carrying out sample under Different Strata i.e. different temperatures；
Described end cap is embedded on cylinder, is closely connected by bolts and nuts, and end cap sets O-shaped with cylinder contact position
Corrosion-resistant sealing ring, the close connection of embedded encryption seal can ensure the intact sealing of cylinder；On end cap set clamping hole,
Monitoring holes and delivery port, clamp hole and monitoring holes and inner side by O-shaped corrosion-resistant sealing ring and spring and spring cup fitted seal,
It can ensure during fatigue tester start-up operation rear jig type frequently reciprocating not because loss of seal energy ensure that experiment
The accuracy of machine test ensures that the sealing of device, big to simulate deeper stratum i.e. temperature height, pressure；
Described monitoring system includes high-precision thermometer probe, oxygen probe, pH value probe, fluid flowmeter, pressure gauge,
Monitoring fluid temperature, oxygen content, the flow velocity of liquid, fluid pressure at any time can be achieved；Thermometer probe, oxygen probe, pH value probe
Fluid flowmeter is arranged in the monitoring holes of end cap；Thermometer probe, oxygen probe, pH value probe and fluid flowmeter and end cap it
Between with O-shaped corrosion-resistant sealing ring, spring and spring cup seal；Pressure gauge is connected and is arranged on outside cylinder with cylinder；
The described circulatory system includes slurry tank, noncorrosive pump, oral siphon, the first valve, outlet pipe, the second valve, sky
Air compressor or CO2Tank or H2S tanks, air inlet pipe and check valve, the import of outlet pipe are connected with the delivery port of end cap, outlet pipe
Outlet is located in slurry tank, and noncorrosive pump is located in slurry tank, the import of oral siphon and the outlet of noncorrosive pump, oral siphon
Outlet connected with the water inlet of cylinder, oral siphon and outlet pipe set the first valve and the second valve, slurry tank, air respectively
Compressor or CO2Tank or H2S tanks are connected by air inlet pipe with the air inlet of cylinder, and check valve is set in air inlet pipe, can be by the first valve
Fluid pressure in the state modulator cylinder of door and the second valve and regulation noncorrosive pump；Check valve is provided with air inlet pipe, is led to
Cross air compressor or CO2Tank or H2S tanks can control the inlet of gas, with the oxygen content or CO of liquid in adjustment barrel body2Content
Or H2S contents；Slurry tank has pulp-inlet pipe；
Described fatigue tester includes the seat of honour, fixture, cylinder cushion cap and lower seat, and cylinder is placed on lower seat, and the seat of honour is located at
Above cylinder, fixture is arranged on seat of honour bottom surface, and fixture passes through the clamping hole of end cap, with O-shaped corrosion-resistant between fixture and clamping hole
Sealing ring, spring and spring cup sealing, cylinder cushion cap is threaded on the base of cylinder, on the bottom of sample and cylinder cushion cap
End threaded connection, the upper end of sample 6 is threadedly coupled with fixture.
The course of work of the present utility model：
The first valve and the second valve of oral siphon and outlet pipe are opened, starts noncorrosive pump, drilling well is pumped into cylinder
When pH value parameter is changed in liquid, system to be monitored, show to fill with drilling fluid in now cylinder；Sensing heater is opened
Open, while opening air compressor or CO2Tank or H2S tanks are passed through gas into cylinder, by turn down outlet pipe the second valve and
The rotating speed of increase noncorrosive pump causes pressure rise to design load, when temperature parameter is shown as design load, by sensing heater
It is tuned into keeping warm mode, the parameters of record now；Open fatigue tester and start test, and keep all setup parameters not change
Become, until test is completed.Temperature, pH value, pressure, flow velocity, oxygen content, CO can be monitored in test process over the display at any time2
Content, H2The parameters such as S contents, and be stored in connected computer.
PH value can be by changing the formula and CO of drilling fluid2、H2The intrusion volume control of S contents, pressure and flow velocity pass through regulation
The rotating speed and oral siphon of noncorrosive pump and the first valve of outlet pipe and the second Valve controlling.
The beneficial effects of the utility model are：
A kind of drill rod materials for simulating actual well drilled environment are provided for fatigue tester by the utility model and corrode tired
Labor test method and device, and can be simulated by switching from valve regulated into different test environments encountered in drilling process
Different Strata, obtains resistance to corrosion fatigue performance of the drill rod materials under different drilling environments, may occur with prediction early
Accident simultaneously takes corresponding measure, reduces the accident caused by drill string corrosion-fatigue failure.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is end cover structure schematic diagram of the present utility model.
Embodiment
Refer to shown in Fig. 1 and Fig. 2, the utility model includes cylinder 1, end cap 2, monitoring system 3, the circulatory system 4 and tired
Labor testing machine 5；
The described bottom of cylinder 1 is provided with around water inlet 111, air inlet 112, cylinder 1 and is provided with sensing heater 11,
Sensing heater 11 imitates Formation heat and cylinder 1 is heated, to carry out the corrosion resistant of sample under Different Strata i.e. different temperatures
Lose fatigability test；
Described end cap 2 is embedded on cylinder 1, is closely connected by bolts and nuts, and end cap 2 is set with the contact position of cylinder 1
O-shaped corrosion-resistant sealing ring is put, the close connection of embedded encryption seal can ensure the intact sealing of cylinder 1；Set on end cap 2
Clamp hole 221, monitoring holes 222 and delivery port 223, clamping hole 221 and the inner side of monitoring holes 222 by O-shaped corrosion-resistant sealing ring with
Spring 21 and the fitted seal of spring cup 22, it is ensured that during fatigue tester start-up operation rear jig type frequently reciprocating not
Because loss of seal energy ensure that the accuracy of testing machine test ensures that the sealing of device, to simulate deeper stratum i.e.
Temperature is high, pressure is big；
Described monitoring system 3 includes high-precision thermometer probe 31, oxygen probe 32, pH value probe 33, fluid flowmeter
34th, pressure gauge 35, can be achieved monitoring fluid temperature, oxygen content, the flow velocity of liquid, fluid pressure at any time；Thermometer probe 31, oxygen
Probe 32, the fluid flowmeter 34 of pH value probe 33 are arranged in the monitoring holes 222 of end cap 2；Thermometer probe 31, oxygen probe 32,
Sealed between pH value probe 33 and fluid flowmeter 34 and end cap 2 with O-shaped corrosion-resistant sealing ring, spring 21 and spring cup 22；Pressure
Power meter 35 is connected and is arranged on outside cylinder 1 with cylinder 1；
The described circulatory system 4 include slurry tank 41, noncorrosive pump 42, oral siphon 43, the first valve 44, outlet pipe 45,
Second valve 46, air compressor or CO2Tank or H2S tanks 47, air inlet pipe 48 and check valve 49, import and the end cap 2 of outlet pipe 45
Delivery port 223 connect, the outlet of outlet pipe 45 is located in slurry tank 41, and noncorrosive pump 42 is located in slurry tank 41, oral siphon
43 import and the outlet of noncorrosive pump 42, the outlet of oral siphon 43 are connected with the water inlet 111 of cylinder 1, oral siphon 43
First valve 44 and the second valve 46, slurry tank 41, air compressor or CO are set respectively with outlet pipe 452Tank or H2S tanks 47 lead to
Cross air inlet pipe 48 to connect with the air inlet 112 of cylinder 1, check valve 49 is set in air inlet pipe 48, can be by the first valve 44 and second
Fluid pressure in the state modulator cylinder 1 of valve 46 and regulation noncorrosive pump 42；Check valve 49 is provided with air inlet pipe 48, is led to
Cross air compressor or CO2Tank or H2S tanks 47 can control the inlet of gas, to adjust the oxygen content or CO of liquid in cylinder 12
Content or H2S contents；Slurry tank 41 has pulp-inlet pipe 411；
Described fatigue tester 5 includes the seat of honour 51, fixture 52, cylinder cushion cap 53 and lower seat 54, and cylinder 1 is placed in lower seat 54
On, the seat of honour 51 is located at the top of cylinder 1, and fixture 52 is arranged on the bottom surface of the seat of honour 51, and fixture 52 passes through the clamping hole 221 of end cap 2, fixture
Sealed between 52 and clamping hole 221 with O-shaped corrosion-resistant sealing ring, spring 21 and spring cup 22, cylinder cushion cap 53 is threaded in
On the base of cylinder 1, the bottom of sample 6 is connected with the threaded upper ends of cylinder cushion cap 53, and upper end and the screw thread of fixture 52 of sample 6 connect
Connect.
The course of work of the present utility model：
The first valve 44 and the second valve 46 of oral siphon 43 and outlet pipe 45 are opened, starts noncorrosive pump 42, to cylinder 1
When being inside pumped into that pH value parameter is changed in drilling fluid, system 3 to be monitored, show to fill with drilling fluid in now cylinder 1；Will sense
Heater 11 is answered to open, while opening air compressor or CO2Tank or H2S tanks 47 are passed through gas into cylinder 1, by turning down out
Second valve 46 of water pipe 45 and the rotating speed of increase noncorrosive pump 42 cause pressure rise to design load, treat that temperature parameter is shown as
During design load, sensing heater 11 is tuned into keeping warm mode, the parameters of record now；Fatigue tester 5 is opened to start to survey
Examination, and keep all setup parameters not change, until test is completed.Can be monitored over the display at any time in test process temperature,
PH value, pressure, flow velocity, oxygen content, CO2Content, H2The parameters such as S contents, and be stored in connected computer.
PH value can be by changing the formula and CO of drilling fluid2、H2The intrusion volume control of S contents, pressure and flow velocity pass through regulation
The rotating speed and oral siphon 43 of noncorrosive pump 42 are controlled with the first valve 44 of outlet pipe 45 and the second valve 46.
Claims (1)
1. a kind of drill rod materials corrosion fatigue test apparatus for simulating actual well drilled environment, including cylinder (1), end cap (2), monitoring
System (3), the circulatory system (4) and fatigue tester (5)；
Described cylinder (1) bottom is provided with around water inlet (111), air inlet (112), cylinder (1) and is provided with sensing heating
Device (11)；
Described end cap (2) is embedded on cylinder (1), is closely connected by bolts and nuts, and end cap (2) is contacted with cylinder (1)
Place sets O-shaped corrosion-resistant sealing ring；Clamping hole (221), monitoring holes (222) and delivery port (223) are set on end cap (2)；
Described monitoring system (3) includes high-precision thermometer probe (31), oxygen probe (32), pH value probe (33), liquid flow
Gauge (34), pressure gauge (35), can be achieved monitoring fluid temperature, oxygen content, the flow velocity of liquid, fluid pressure at any time；Thermometer
Probe (31), oxygen probe (32), pH value probe (33) and fluid flowmeter (34) are arranged in the monitoring holes of end cap (2) (222)；
With O-shaped corrosion resistant between thermometer probe (31), oxygen probe (32), pH value probe (33) and fluid flowmeter (34) and end cap (2)
Lose sealing ring, spring (21) and spring cup (22) sealing；Pressure gauge (35) connects with cylinder (1) and is arranged on cylinder (1) outside；
The described circulatory system (4) includes slurry tank (41), noncorrosive pump (42), oral siphon (43), the first valve (44), water outlet
Manage (45), the second valve (46), air compressor or CO2Tank or H2S tanks (47), air inlet pipe (48) and check valve (49), outlet pipe
(45) import is connected with the delivery port (223) of end cap (2), and the outlet of outlet pipe (45) is located in slurry tank (41), corrosion-resistant
Pump (42) is located in slurry tank (41), the import of oral siphon (43) and the outlet of noncorrosive pump (42), oral siphon (43)
Outlet is connected with the water inlet (111) of cylinder (1), and oral siphon (43) and outlet pipe (45) set the first valve (44) and the respectively
Two valves (46), slurry tank (41), air compressor or CO2Tank or H2S tanks (47) are entered by air inlet pipe (48) and cylinder (1)
Gas port (112) is connected, and check valve (49) is set in air inlet pipe (48), by the first valve (44) and the second valve (46) and can be adjusted
Save the fluid pressure in the state modulator cylinder (1) of noncorrosive pump (42)；Check valve (49), mud are provided with air inlet pipe (48)
Tank (41) has pulp-inlet pipe (411)；
Described fatigue tester (5) includes the seat of honour (51), fixture (52), cylinder cushion cap (53) and lower seat (54), and cylinder (1) is put
In on lower seat (54), the seat of honour (51) are located above cylinder (1), and fixture (52) is arranged on the seat of honour (51) bottom surface, and fixture (52) is passed through
The clamping hole (221) of end cap (2), with O-shaped corrosion-resistant sealing ring, spring (21) and spring between fixture 52 and clamping hole (221)
(22) sealing is covered, cylinder cushion cap (53) is threaded on the base of cylinder (1), bottom and the cylinder cushion cap (53) of sample (6)
Threaded upper ends are connected, and the upper end of sample (6) is threadedly coupled with fixture (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720045371.0U CN206399794U (en) | 2017-01-16 | 2017-01-16 | Simulate the drill rod materials corrosion fatigue test apparatus of actual well drilled environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720045371.0U CN206399794U (en) | 2017-01-16 | 2017-01-16 | Simulate the drill rod materials corrosion fatigue test apparatus of actual well drilled environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206399794U true CN206399794U (en) | 2017-08-11 |
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ID=59518252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720045371.0U Expired - Fee Related CN206399794U (en) | 2017-01-16 | 2017-01-16 | Simulate the drill rod materials corrosion fatigue test apparatus of actual well drilled environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206399794U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769825A (en) * | 2017-01-16 | 2017-05-31 | 吉林大学 | Simulate the drill rod materials corrosion fatigue test apparatus of actual well drilled environment |
| CN113447426A (en) * | 2021-06-29 | 2021-09-28 | 上海摩软通讯技术有限公司 | Erosion corrosion testing device |
-
2017
- 2017-01-16 CN CN201720045371.0U patent/CN206399794U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769825A (en) * | 2017-01-16 | 2017-05-31 | 吉林大学 | Simulate the drill rod materials corrosion fatigue test apparatus of actual well drilled environment |
| CN113447426A (en) * | 2021-06-29 | 2021-09-28 | 上海摩软通讯技术有限公司 | Erosion corrosion testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20190116 |