CN101672725A - Intelligent type high-temperature high-pressure multifunctional dynamic evaluation experimental apparatus of drilling fluid - Google Patents
Intelligent type high-temperature high-pressure multifunctional dynamic evaluation experimental apparatus of drilling fluid Download PDFInfo
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- CN101672725A CN101672725A CN200910017544A CN200910017544A CN101672725A CN 101672725 A CN101672725 A CN 101672725A CN 200910017544 A CN200910017544 A CN 200910017544A CN 200910017544 A CN200910017544 A CN 200910017544A CN 101672725 A CN101672725 A CN 101672725A
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Abstract
The invention provides a high-temperature high-pressure multifunctional dynamic evaluation experimental apparatus of drilling fluid, mainly comprising a boosting pump, an experimental tank, a condenser, an electromagnetic valve, a material storage tank, a filter liquor measuring cylinder, a pulp receiving tank, a sensor, a computer and a time controller, wherein the experimental tank mainly comprises a tank body, a magnetic transmission system, a thermowell, a boosting hole joint, a liquid adding hole joint, a slurry cup, a stirring shaft and a stirring cylinder. The invention has the advantages of simple, convenient and easy operation, enhanced work efficiency, real simulation of an actual underground working condition, higher safety, more stable apparatus and longer service life and alsoforms a high-temperature high-pressure multifunctional dynamic evaluation experimental technique.
Description
Technical field:
The present invention relates to a kind of drilling fluid evaluation experimental instrument, specifically multinomial drilling fluid high-temperature high pressure evaluation experimental technology is integrated in one, reach the purpose of a multi-purpose instrument, the scientific research institutions, the scientific experiment chamber of enterprises and institutions, the product that are suitable for relating to oil/gas drilling detect the drilling fluid high-temperature high pressure multifunctional dynamic evaluation tester that use in the laboratory.
Background technology:
Along with the constantly expansion of zone of oil-gas exploration, the degree of depth of oil/gas drilling is more and more darker, difficulty is increasing, and is also more and more higher to the requirement of drilling fluid.For deep drilling, formation temperature height, pressure are big, and this just requires drilling fluid to have good performance under the High Temperature High Pressure dynamic condition.At present, because High Temperature High Pressure motive seal and mechanical drive and data sensor technical bottleneck problem, the instrument and equipment that causes being used for testing the drilling fluid high-temperature high pressure dynamic property is also not ideal, especially dynamic condition downforce and temperature are lower, can not satisfy the testing research of dynamic property under the drilling fluid superhigh-temperature and-pressure condition, also there are problems such as method of testing mistake, complex operation step in some traditional instrument.In addition, carry out the High Temperature High Pressure all-round property testing, also must just can finish by many instrument and equipments to drilling fluid.This shows that drilling fluid high-temperature high pressure dynamic performance testing technology, especially testing tool are one of gordian technique difficult problems of restriction deep drilling development.Therefore, the development drilling fluid high-temperature high pressure multifunctional dynamic evaluation tester has important practical significance.
Summary of the invention:
Technical matters to be solved by this invention is in order to overcome above-mentioned the deficiencies in the prior art, engineering characteristic and job requirements in conjunction with the oil field different work, utilize advanced dynamic sealing technology, mechanical drive and data sensor technology, develop a multi-functional evaluation experimental device of new type high temperature high pressure that is suitable for underground work liquid.This equipment operation is simple, stable performance, safe in utilization.
The technical scheme that the present invention solves the problems of the technologies described above employing is:
The LH-2 intelligent type high-temperature high-pressure multifunctional dynamic evaluation experimental apparatus of drilling fluid, mainly by supercharge pump, experimental tank, condenser, solenoid valve, storage tank, the filtrate graduated cylinder, connect the slurry jar, sensor, computing machine and time controller are formed, experimental tank is mainly by tank body, the magnetic drives system, thermowell, the pressurized hole joint, the liquid filling hole joint, mud cup, shaft, churn is formed, the experimental tank top is the magnetic drives system, be respectively equipped with thermowell on the experimental tank upper top cover, the pressurized hole joint, the liquid filling hole joint, experimental tank central authorities are mud cup, the mud cup top is the mud cup loam cake, the bottom is the mud cup lower cover, mud cup central authorities are churn, churn central authorities are shaft, shaft links to each other with the magnetic drives system, screw thread is arranged on the churn, and top cover is provided with and connects the liquid hole connector under the experimental tank; Between the welding bottle of experiment instrument and the supercharge pump high-pressure stop valve is installed, supercharge pump is connected with experimental tank, experimental tank is connected with condenser, condenser is connected with the filtrate graduated cylinder by solenoid valve, welding bottle by high pressure by palace gate respectively with connect slurry and jar link to each other with condenser, connecing to starch jar has solenoid control, the switch of time controller control electromagnetic valve, sensor links to each other with computing machine, and computing machine connects output device.
Compared with prior art, the present invention is in use:
(1) utilizes the screw thread of rotating spoon outer peripheral face particular design, make drilling fluid in rotating condition the fluid mechanics aerodynamic field change, can simulate drilling fluid down-hole motion state, both there had been the circumferential movement under the drill string rotating shearing, exist annular space to return motion on axially again, make drilling fluid present compound flowing state.And shear rate is adjustable continuously.
(2) the direct beating action of employing rotating spoon, make drilling fluid be in the compound flow state of annular space, the active state of drilling cuttings and drilling fluid under the real simulation well, overcome conventional roller stove ageing can middle-high density drilling fluid and issued the problem that rubber coagulates back and drilling cuttings mass motion, demonstrated fully under the high-temperature and high-pressure conditions drilling fluid the erosion effect of drilling cuttings in the High Temperature High Pressure effect.
(3) for conventional leak stopping instrument, generally adopt aperture plate as fractured model, have following problem: 1, aperture plate approaches (aperture plate thickness has only 6.4mm), lost circulation additive is difficult to stop in the crack, do not enter the crack, or scurried the crack, be difficult in the crack, form wall; If 2 lost circulation materials enter microfracture, then be stuck in and be difficult in the crack remove.The present invention adopts the post design of split type slit, both has been convenient to clean, and also is convenient to observe lost circulation additive forms wall in the crack state, helps the actual plugging effect of authentic assessment lost circulation material to the crack, down-hole.
(4) conventional pressure multipier generally adopts the method for repeatedly imbibition, repeatedly pressurization to realize the increase of pressure, in the experimentation pressure surge bigger, influence experimental result.The present invention adopts special automatic supercharging voltage stabilizing technique, overcome conventional supercharger manually, supercharging problem intermittently.Make easy to operationly, improved work efficiency, more can real simulation down-hole actual condition.
(5) adopt the mechanical wires sealing, not only solved the easily aging problem of conventional dynamic sealing rubber O-ring seal high temperature, and security is higher, instrument is more stable, longer service life.
(6) adopt the efficient cooling technology of pressure, be convenient to the fast cooling of High Temperature High Pressure kettle, can increase substantially work efficiency.The present invention not only provides a kind of drilling fluid high-temperature high pressure multifunctional dynamic evaluation experimental provision, has also formed the high-temperature high-pressure multifunctional dynamic evaluation experimental technology.
Description of drawings:
Accompanying drawing 1 is the structural representation of experimental tank of the present invention;
Accompanying drawing 2 is a connection diagram of the present invention.
Embodiment:
Be described in detail embodiments of the invention below in conjunction with accompanying drawing.
The LH-2 intelligent type high-temperature high-pressure multifunctional dynamic evaluation experimental apparatus of drilling fluid, mainly by supercharge pump 14, experimental tank 15, condenser 16, solenoid valve 17, storage tank 21, filtrate graduated cylinder 18, connect slurry jar 19, sensor 22, computing machine 23 and time controller 20 are formed, experimental tank 15 is mainly by tank body 12, magnetic drives system 1, thermowell 2, pressurized hole joint 3, liquid filling hole joint 4, mud cup 6, shaft 7, churn 8 is formed, experimental tank 15 tops are magnetic drives system 1, be respectively equipped with thermowell 2 on experimental tank 15 upper top covers, pressurized hole joint 3, liquid filling hole joint 4, experimental tank 15 central authorities are mud cup 6, mud cup 6 tops are mud cup loam cake 5, the bottom is a mud cup lower cover 9, mud cup central authorities are churn 8, churn 8 central authorities are shaft 7, shaft 7 links to each other with magnetic drives system 1, on the churn 8 screw thread is arranged, 15 times top covers of experimental tank are provided with and connect liquid hole connector 10; Between the welding bottle 13 of experiment instrument and the supercharge pump 14 high-pressure stop valve is installed, supercharge pump 14 is connected with experimental tank 15, experimental tank 15 is connected with condenser 16, condenser 16 is connected with filtrate graduated cylinder 18 by solenoid valve 17, welding bottle 13 by high pressure by palace gate respectively with connect slurry jars 19 and link to each other with condenser 16, connecing slurry jar 19 has solenoid control 25, time controller 20 control electromagnetic valve 17 and 25 switch, sensor 22 links to each other with computing machine 23, and computing machine 23 connects output device 24.
Utilize this instrument can carry out following 5 kinds of experimental projects:
Experimental project one: the dynamic leak stopping experiment of drilling fluid high-temperature high pressure
(1) fractured leakage, leak stopping experiment
Because conventional aperture plate is too thin, lost circulation material is difficult to stop in the slit, can not accurately estimate the lost circulation additive performance, therefore, has developed slit post leakage model, keeps the aperture plate that meets API leak stopping standard simultaneously.
1. thin aperture plate leak stopping experiment: crack thickness 6.4mm, fracture width (1.0,2.0,3.0,4.0,5.0mm).Press the API standard design.
2. slit crack post leak stopping experiment: crack thickness 60mm, fracture width is 0.5,1.0,1.5,2.0,2.5,3.0,4.0,5.0mm, than API standard increased by 0.5,1.5, three series of 2.5mm, make scope of experiment wider, and employing split-type design, both be convenient to clean, also be convenient to observe lost circulation additive forms wall in the crack state.
3. the post leak stopping experiment of short slit: for the rule that influences of research crack thickness to plugging effect, increased the post leak stopping experiment of short slit again, crack thickness 20mm, fracture width are 0.5,1.0,1.5,2.0,2.5,3.0,4.0,5.0mm.
(2) porosity leakage, leak stopping experiment
1. casting bed leak stopping experiment: adopt the split design, can conveniently assemble and disassemble, help observing drilling fluid and invade the casting bed degree of depth.
2. pellet shot from a slingshot bed leak stopping experiment: the leakage of simulation glutenite, also adopt the split design.
Experimental project two: drilling fluid high-temperature high pressure dynamic filtration experiment
Can under the dynamic condition of simulation drilling fluid rotational shear and circulation shear, carry out the experiment of High Temperature High Pressure leak-off.
Experimental project three: drilling fluid high-temperature high pressure static filtration experiment
Can under simulation drilling fluid superhigh-temperature and-pressure static condition, carry out the static filtration experiment.
Experimental project four: drilling fluid high-temperature high pressure drilling cuttings dispersion experiment
Under simulation drilling fluid rotational shear and circulation shear dynamic condition, carry out drilling cuttings and disperse recovery experiment.Solved the problem that does not have relative motion between drilling cuttings that conventional rolling dispersion experiment causes and the drilling fluid after the high temperature gelling.
Experimental project five: drilling fluid senile experiment under the superhigh-temperature and-pressure condition
The simulation drilling fluid is in the dynamic aging experiment down of superhigh temperature (300 ℃), high pressure (50MPa).
This instrument can reach following the key technical indexes in above-mentioned experimental project:
(1) the highest design temperature: 300 ℃.
(2) maximum design pressure: 50MPa.
(3) speed range of adjustment: 0～1000r/min stepless speed regulation.
(4) experiment is 0.5-5mm with simulate formation crack gap width.
(5) high temperature and high pressure kettle body bulk: 800mL.
(6) fluid reservoir volume: 600～800mL.
Claims (1)
1, the LH-2 intelligent type high-temperature high-pressure multifunctional dynamic evaluation experimental apparatus of drilling fluid, mainly by supercharge pump, experimental tank, condenser, solenoid valve, storage tank, the filtrate graduated cylinder, connect the slurry jar, sensor, computing machine and time controller are formed, it is characterized in that experimental tank is mainly by tank body, the magnetic drives system, thermowell, the pressurized hole joint, the liquid filling hole joint, mud cup, shaft, churn is formed, the experimental tank top is the magnetic drives system, be respectively equipped with thermowell on the experimental tank upper top cover, the pressurized hole joint, the liquid filling hole joint, experimental tank central authorities are mud cup, the mud cup top is the mud cup loam cake, the bottom is the mud cup lower cover, mud cup central authorities are churn, churn central authorities are shaft, shaft links to each other with the magnetic drives system, screw thread is arranged on the churn, and top cover is provided with and connects the liquid hole connector under the experimental tank; Between the welding bottle of experiment instrument and the supercharge pump high-pressure stop valve is installed, supercharge pump is connected with experimental tank, experimental tank is connected with condenser, condenser is connected with the filtrate graduated cylinder by solenoid valve, welding bottle by high pressure by palace gate respectively with connect slurry and jar link to each other with condenser, connecing to starch jar has solenoid control, the switch of time controller control electromagnetic valve, sensor links to each other with computing machine, and computing machine connects output device.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507629A (en) * | 2011-10-26 | 2012-06-20 | 西南石油大学 | Device for dynamically simulating ageing of drilling fluid at well bottom |
| CN104897858A (en) * | 2015-06-17 | 2015-09-09 | 中国海洋石油总公司 | System for simulating underground dynamic circulation of drilling fluid |
| CN106124741A (en) * | 2016-06-29 | 2016-11-16 | 西南石油大学 | Cement mortar high temperature sedimentary stability test device |
| CN106124702A (en) * | 2016-06-22 | 2016-11-16 | 西南石油大学 | Dynamic drilling fluid mud cake Simulation evaluation instrument under High Temperature High Pressure |
| CN107656036A (en) * | 2017-11-15 | 2018-02-02 | 西南石油大学 | A kind of HTHP dynamic joint seal gas-stopping effect evaluation experimental device and its evaluation method |
| CN110465471A (en) * | 2019-08-08 | 2019-11-19 | 岳阳林纸股份有限公司 | A kind of chemical pulping alkali recovery evaporator plate leakage metal leak repairing new process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1731176A (en) * | 2005-08-08 | 2006-02-08 | 余维初 | Intelligent high-temperature high-voltage experimental instrument for dynamic leak stopping evaluation |
| CN2849724Y (en) * | 2005-08-08 | 2006-12-20 | 余维初 | Intelligent high temp. high pressure dynamic leaking stoppage evaluating tester |
| CN101144805A (en) * | 2007-09-28 | 2008-03-19 | 东营陆海石油科技有限公司 | Drilling fluid high-temperature high pressure multifunctional dynamic evaluation tester |
-
2009
- 2009-08-05 CN CN200910017544A patent/CN101672725A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1731176A (en) * | 2005-08-08 | 2006-02-08 | 余维初 | Intelligent high-temperature high-voltage experimental instrument for dynamic leak stopping evaluation |
| CN2849724Y (en) * | 2005-08-08 | 2006-12-20 | 余维初 | Intelligent high temp. high pressure dynamic leaking stoppage evaluating tester |
| CN101144805A (en) * | 2007-09-28 | 2008-03-19 | 东营陆海石油科技有限公司 | Drilling fluid high-temperature high pressure multifunctional dynamic evaluation tester |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507629A (en) * | 2011-10-26 | 2012-06-20 | 西南石油大学 | Device for dynamically simulating ageing of drilling fluid at well bottom |
| CN104897858A (en) * | 2015-06-17 | 2015-09-09 | 中国海洋石油总公司 | System for simulating underground dynamic circulation of drilling fluid |
| CN106124702A (en) * | 2016-06-22 | 2016-11-16 | 西南石油大学 | Dynamic drilling fluid mud cake Simulation evaluation instrument under High Temperature High Pressure |
| CN106124702B (en) * | 2016-06-22 | 2018-01-23 | 西南石油大学 | Dynamic drilling fluid mud cake Simulation evaluation instrument under HTHP |
| CN106124741A (en) * | 2016-06-29 | 2016-11-16 | 西南石油大学 | Cement mortar high temperature sedimentary stability test device |
| CN106124741B (en) * | 2016-06-29 | 2018-04-20 | 西南石油大学 | Cement mortar high temperature sedimentary stability test device |
| CN107656036A (en) * | 2017-11-15 | 2018-02-02 | 西南石油大学 | A kind of HTHP dynamic joint seal gas-stopping effect evaluation experimental device and its evaluation method |
| CN107656036B (en) * | 2017-11-15 | 2023-07-25 | 兰州城市学院 | Experimental device and method for evaluating high-temperature high-pressure dynamic sealing and blocking effects |
| CN110465471A (en) * | 2019-08-08 | 2019-11-19 | 岳阳林纸股份有限公司 | A kind of chemical pulping alkali recovery evaporator plate leakage metal leak repairing new process |
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Application publication date: 20100317 |