CN2866805Y - Drilling well leakage plugging simulating experimental instrument - Google Patents
Drilling well leakage plugging simulating experimental instrument Download PDFInfo
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- CN2866805Y CN2866805Y CN 200620068994 CN200620068994U CN2866805Y CN 2866805 Y CN2866805 Y CN 2866805Y CN 200620068994 CN200620068994 CN 200620068994 CN 200620068994 U CN200620068994 U CN 200620068994U CN 2866805 Y CN2866805 Y CN 2866805Y
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- seating nipple
- hydraulic cylinder
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- core seating
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Abstract
The utility model discloses a new drilling leak instrument of modeling test in the drilling technology field comprises a barrel mandrel for placing barrel. An annular packing packer is suited in the barrel mandrel on which an access oil channel connecting the annular space of between the inner surface of the barrel mandrel and the annular packing packer. One end of the barrel mandrel is provided with an end cap on which a testing channel is arranged, the other end of the barrel mandrel is connected with a big hydraulic cylinder on the other end of which a small hydraulic cylinder is arranged. The hydraulic cylinder and the small hydraulic cylinder are respectively arranged a big piston and a small piston connected by a piston rod. The space between the big hydraulic cylinder and the small hydraulic cylinder are separated by a separator on which the oil inlet and the outlet connected to the big hydraulic cylinder and the small hydraulic cylinder is arranged on the separator. The big hydraulic cylinder between the big piston and the barrel mandrel is provided with a stopping inlet and a pressure gage. The utility model can test the loss of the bridging liquid and the bridging regularity and can be used in drilling simulated bridging, formation damage experimental evaluation, PT experimental evaluation and hydrocarbon layer protecting experiment.
Description
Technical field
The utility model is the drilling leakage blockage simulation test apparatus in drilling technology field, and by the artificial core simulation of special large scale down-hole drop ply, test leakage-stop liquid sealing characteristics is estimated its plugging effect, belongs to the drilling technology field.
Background technology
In the drilling process often because of reason generation drilling fluid leakages such as formation pore or formation fractures, indoor must the further investigation to the leak stopping slurry leak stopping performance under difference leakage condition.The drilling leakage blockage experimental rig that multiple model once occurred both at home and abroad, its basic structure unanimity, promptly top is one to add crimp head, and the middle part is a vertical cylinder, and the bottom is used for discharge opeing for the pipeline of band valve.Cylinder interior is used slot plate and ballotini or little steel ball packed layer simulation leakage stratum earlier, injects the leak stopping slurry again on drop ply, and use air pressure etc. drives the leak stopping slurry and invades drop ply, measures its plugging effect.Find that in long-term laboratory test research there is following deficiency in this type of device: 1, the simulation lost-circulation zone degree of depth is not enough, the lost-circulation zone thickness of present glass marble form is generally less than 5cm, loss circulation material is difficult in and forms high strength gathering shutoff band, the distortion of leak stopping evaluation effect in this hobbing depth under a lot of situations; 2, adopt aperture plate or glass pellet simulation leakage stratum, do not consider the complexity in formation rock hole and crack and the rerum natura on stratum, as the imbibition characteristic of rock, wetability, surface roughness, friction factor etc.; 3, distribution and the stopping state of loss circulation material in lost-circulation zone is difficult to directly observe and analyze; 4, can not test the plugged zone of leak stopping formation or the reverse pressure-bearing ability of leak stopping wall.
The utility model content
The utility model purpose is the deficiency at above-mentioned plugging test device, designed and produced the brand-new plugging test device of a cover, make it can simulate the leakage stratum more objectively, true reflection leak stopping process, reflection loss circulation material directly perceived is invaded the situation of simulation core, so that the sealing agent prescription and the leak-stopping technique of designing optimal.
The purpose of this utility model is achieved in that novel drilling leakage blockage simulation test instrument, comprise the core seating nipple that is used to place core, be set with the annular space cartridge in the core seating nipple, the core seating nipple is provided with the turnover oil passage of connecting the annular space between core seating nipple inwall and the annular space cartridge, core seating nipple one end is provided with end cap, and end cap is provided with test channel; The core seating nipple other end is connected with large tank, be provided with a small oil tank away from core seating nipple one end on the large tank, big piston and valve piston are housed respectively in large tank and the small oil tank, be connected through piston rod between big piston and the valve piston, separation assembly through the bar of packed-piston between small oil tank and the large tank is isolated, separate assembly and be provided with two oil inlet and outlets of connecting large tank and small oil tank, the large tank between big piston and the core seating nipple is provided with leak stopping slurry inlet and pressure meter.
During the utility model work, the simulation core is packed in the annular space cartridge in the core seating nipple, by pressurizeing in the annular space of the oil passage of the turnover on the core seating nipple between core seating nipple inwall and annular space cartridge, push annular space cartridge sealing simulation core side, then by filling leak stopping slurry in the large tank of leak stopping slurry inlet between big piston and core, large tank not only uses as oil cylinder, and the sludge barrel of also starching as canned leak stopping uses simultaneously; By giving the pressurization of big piston opposite side, drive the leak stopping slurry and invade under pressure in the simulation core, can test the forward shut-off capacity of leakage-stop liquid; After the leak stopping success, can also shed positive pressure, connect pressure air, can test its reverse pressure-bearing power in end caps; Core pulled down turn around to pack into the annular space cartridge, core after using clear water to shutoff is oppositely pressurization slowly, the reverse pressure-bearing ability of test leak stopping wall, loss circulation material are invaded the degree of depth of artificial core and are distributed and can directly observe by cutting artificial core open after experiment finishes; The utility model can reflect more realistically that the pressure that making a trip in the drilling process caused changes; Can accurately test the leakage and the leak stopping rule of the leakage-stop liquid under difference leakage condition; Can simulate the drilling leakage blockage process under the different hole deviation situations.The utility model not only can be used as the evaluation of drilling simulation plugging test, can also be as formation damage test evaluation, PT test evaluation and the reservoir protection test etc. of full diameter simulation core.
For ease of indicating large and small piston present position, valve piston is provided with and stretches out in the outer scale of small oil tank.
Move and the turned position for convenient, but core seating nipple side is provided with the rotating shaft of level and perpendicular positioning, described rotating shaft is arranged on the bottom and is provided with on the support of castor.During use, also the core seating nipple can be turned to horizontal level by stand up position and detect.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the fundamental diagram of Fig. 1;
Fig. 3 is the right view of Fig. 1;
The specific embodiment
As shown in Figure 1, 2, 3, be the drilling leakage blockage simulation test instrument, mainly comprise the core seating nipple 11 that is used to place core, be set with annular space cartridge 12 in the core seating nipple 11, core seating nipple 11 is provided with the turnover oil passage 16 of connecting annular space between core seating nipple inwall and the annular space cartridge 12, core seating nipple 11 1 ends are provided with end cap 15, and end cap is provided with test channel 12; Core seating nipple 11 other ends are connected with large tank 6, be provided with a small oil tank 2 away from core seating nipple one end on the large tank 6, big piston 8 and valve piston 3 are housed respectively in large tank 6 and the small oil tank 2, be connected through piston rod 7 between big piston 8 and the valve piston 3, separation assembly 4 through the bar of packed-piston between small oil tank 2 and the large tank 6 is isolated, separate assembly 4 and be provided with two oil inlet and outlets 5 of connecting large tank 6 and small oil tank 2, the large tank 6 between big piston 8 and the core seating nipple is provided with leak stopping slurry inlet 10 and pressure meter 9; Valve piston 3 is provided with the scale 1 that stretches out in outside the small oil tank 2; But core seating nipple side is provided with the rotating shaft 18 of level and perpendicular positioning, and described rotating shaft 18 is arranged on the bottom and is provided with on the support 19 of castor 20.
During work, must be equipped with a hydraulic pump 17, its maximum working pressure is 16MPa, and maximum pump discharge is 950L/h; Simulation core 13 adopts the artificial core simulation of the large scale of Φ 100 * 600mm leakage stratum, the high test pressures of the utility model is 25MPa, and flow can be according to the test requirements document flexible modulation, can be according to the constant test pressure reduction of leak stopping needs, pressure control steadily, and is easy and simple to handle.During test, install each accessory, check the pipeline tightness by general assembly drawing; The simulation core of making 13 is sent in the annular space cartridge 12, load onto end cap 15, by being forced into 2-4Mpa in the annular space of the oil passage 16 of the turnover on the core seating nipple 11 between core seating nipple inwall and annular space cartridge, push annular space cartridge 12 sealing simulation cores 13 sides, close import after in large tank, injecting the leak stopping slurry for preparing by leak stopping slurry inlet 10, open hydraulic pump 17, by in large tank 6, injecting hydraulic oil, promote big piston 8, the leak stopping slurry is clamp-oned in the simulation core 13.By being placed in the size of the pressure meter observation loss circulation material bearing capacity on the large tank.After the leak stopping slurry was all clamp-oned in the core, small oil tank 2 work can replenish the leak stopping slurry in the large tank 6 that sucks between big piston 8 and the simulation core by the leak stopping slurry inlet, proceed plugging test.After quiet stifled or other method leak stopping of a period of time is finished, the leak stopping wall forms, pressure meter can show the malleation bearing capacity, after the leak stopping success, lay down the pressure of hydraulic pump, in the external high-pressure air source of test channel, slowly the reverse pressure-bearing ability that accessibility maximum pressure is the leak stopping wall is tested in pressurization then.In addition, can also take out the simulation core, in the core seating nipple of oppositely packing into, the slowly oppositely pressurization of core after using clear water to shutoff, the reverse pressure-bearing ability that can test the leak stopping wall.
Claims (3)
1, novel drilling leakage blockage simulation test instrument, it is characterized in that: comprise the core seating nipple that is used to place core, be set with the annular space cartridge in the core seating nipple, the core seating nipple is provided with the turnover oil passage of connecting annular space between core seating nipple inwall and the annular space cartridge, core seating nipple one end is provided with end cap, and end cap is provided with test channel; The core seating nipple other end is connected with large tank, be provided with a small oil tank away from core seating nipple one end on the large tank, big piston and valve piston are housed respectively in large tank and the small oil tank, be connected through piston rod between big piston and the valve piston, separation assembly through the bar of packed-piston between small oil tank and the large tank is isolated, separate assembly and be provided with two oil inlet and outlets of connecting large tank and small oil tank, the large tank between big piston and the core seating nipple is provided with leak stopping slurry inlet and pressure meter.
2, novel drilling leakage blockage simulation test instrument according to claim 1 is characterized in that: described valve piston is provided with and stretches out in the outer scale of small oil tank.
3, novel drilling leakage blockage simulation test instrument according to claim 1 and 2 is characterized in that: but described core seating nipple side is provided with the rotating shaft of level and perpendicular positioning, and described rotating shaft is arranged on the bottom and is provided with on the support of castor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068994 CN2866805Y (en) | 2006-01-24 | 2006-01-24 | Drilling well leakage plugging simulating experimental instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068994 CN2866805Y (en) | 2006-01-24 | 2006-01-24 | Drilling well leakage plugging simulating experimental instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2866805Y true CN2866805Y (en) | 2007-02-07 |
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ID=37702509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620068994 Expired - Fee Related CN2866805Y (en) | 2006-01-24 | 2006-01-24 | Drilling well leakage plugging simulating experimental instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2866805Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408104B (en) * | 2008-11-28 | 2012-10-17 | 中国地质大学（武汉） | High fidelity simulating stratum well-drilling leakage-plugging evaluation experimental system |
| CN103510944A (en) * | 2012-06-28 | 2014-01-15 | 中国石油化工股份有限公司 | High-temperature and high-pressure plugging / sticking preventing simulation evaluation device and method |
| CN105116113A (en) * | 2015-09-18 | 2015-12-02 | 成都维泰油气能源技术有限公司 | Visualized evaluation device for pressure-bearing drilling fluid plugging and leaking stoppage material property |
| CN106555570A (en) * | 2015-09-25 | 2017-04-05 | 中国石油化工股份有限公司 | Wellhead hydraulic lifting device |
| CN108956047A (en) * | 2018-07-28 | 2018-12-07 | 宁波联城住工科技有限公司 | The spillage detection device and method of grout sleeve |
-
2006
- 2006-01-24 CN CN 200620068994 patent/CN2866805Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408104B (en) * | 2008-11-28 | 2012-10-17 | 中国地质大学（武汉） | High fidelity simulating stratum well-drilling leakage-plugging evaluation experimental system |
| CN103510944A (en) * | 2012-06-28 | 2014-01-15 | 中国石油化工股份有限公司 | High-temperature and high-pressure plugging / sticking preventing simulation evaluation device and method |
| CN103510944B (en) * | 2012-06-28 | 2017-03-29 | 中国石油化工股份有限公司 | A kind of High Temperature High Pressure closure/prevent telling simulating-estimating device and its evaluation methodology |
| CN105116113A (en) * | 2015-09-18 | 2015-12-02 | 成都维泰油气能源技术有限公司 | Visualized evaluation device for pressure-bearing drilling fluid plugging and leaking stoppage material property |
| WO2017045402A1 (en) * | 2015-09-18 | 2017-03-23 | 成都维泰油气能源技术有限公司 | Visualized evaluation device for pressure-bearing drilling-fluid plugging and leaking stoppage material property |
| CN106555570A (en) * | 2015-09-25 | 2017-04-05 | 中国石油化工股份有限公司 | Wellhead hydraulic lifting device |
| CN108956047A (en) * | 2018-07-28 | 2018-12-07 | 宁波联城住工科技有限公司 | The spillage detection device and method of grout sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070207 Termination date: 20100224 |