CN204113272U - Deepwater drilling pit shaft gas cut simulation visual experimental apparatus - Google Patents
Deepwater drilling pit shaft gas cut simulation visual experimental apparatus Download PDFInfo
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- CN204113272U CN204113272U CN201420542260.7U CN201420542260U CN204113272U CN 204113272 U CN204113272 U CN 204113272U CN 201420542260 U CN201420542260 U CN 201420542260U CN 204113272 U CN204113272 U CN 204113272U
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Abstract
The utility model provides deepwater drilling pit shaft gas cut to simulate visual experimental apparatus, and it forms primarily of air compressor machine, precise pressure regulating valve, gasholder, glass rotameter, non retern valve, connector, pressure sensor, dc source, data handling system, brush DC water pump, cyclic water tank, motor, simulation wellbore hole, simulation drill string and high-speed camera.Drilling fluid pumps into simulation wellbore hole annular space by brush DC water pump, and return out to cyclic water tank realize circulation of drilling fluid utilize; Air compressor machine stablizes source of the gas as gas, by precise pressure regulating valve adjustment gas pressure and gas cut speed; Adopt pressure sensor real time record bottom pressure simultaneously, adopt high-speed camera record pit shaft flow pattern of gas-liquid two-phase flow situation of change.The utility model structure is simple, easy to use, intuitively truly can reflect that in drilling process, rear pit shaft flow pattern of gas-liquid two-phase flow change and bottom pressure Changing Pattern appear in gas cut, formulate well control plan for science and provide reliable basis, have larger application value.
Description
Technical field
The present invention relates to oil and gas drilling applications, particularly deepwater drilling pit shaft gas cut simulation visual experimental apparatus.
Background technology
In oil/gas drilling process, owing to being subject to the impact of the various factors such as geological environment, drilling condition and manual operation, cause bottom pressure unbalance, formation fluid (oil, gas, water) invades pit shaft, cause down-hole complex accident, especially invade with gas phase the down-hole accident brought out the most serious.After gas invades pit shaft, drilling fluid is ejected pit shaft and causes whole wellbore pressure to decline rapidly by the slippage rising of gas, if process will develop into well kick, blowout not in time, even blowout out of control, baptism is carried out to Oil/gas Well safety belt, as process that could not be proper in time after Northeast Sichuan area Qingxi 1 Well, first Ba222Jing and first land 3 well generation gas cut, finally lead to serious consequence.As can be seen here, only have the gas liquid two-phase flow behavior after correct understanding gas intrusion pit shaft and bottom pressure Changing Pattern, fundamentally could solve the well control problem after gas cut.Bubble is along in mineshaft annulus upwards migration process, and drill string rotating speed, bubble volume, gas cut speed, fluid flow have material impact to flow pattern in pit shaft and pressure distribution.Therefore, be necessary mineshaft annulus multiphase flow actual flow form and Entropy density deviation state in research gas cut process, set up the annulus multi phase flow model being applicable to Oil/gas Well well control.
Mineshaft annulus multiphase flow flow regime after gas cut is complicated, current theoretical model is also difficult to accurate characterization, therefore be necessary to design a kind of deepwater drilling pit shaft gas cut simulation visual experimental apparatus, can simulate after gas cut occurs under specified conditions, mineshaft annulus Multiphase Flow rule, the formulation for well control scheme provides certain technological guidance.
Summary of the invention
The utility model provides deepwater drilling pit shaft gas cut to simulate visual experimental apparatus, its objective is: intuitively in true reflection drilling process, after gas cut appearance, pit shaft flow pattern of gas-liquid two-phase flow changes and bottom pressure Changing Pattern.
For achieving the above object, the technical scheme that the utility model adopts is: deepwater drilling pit shaft gas cut simulation visual experimental apparatus, comprises air compressor machine, precise pressure regulating valve, gasholder, glass rotameter, non retern valve, connector, pressure sensor, dc source, data handling system, brush DC water pump, cyclic water tank, motor, simulation wellbore hole, simulation drill string, high-speed camera; Described connector comprises sealing ring, air inlet port, inlet; It is characterized in that simulation wellbore hole selects transparent organic glass pipe, and wall has leakage fluid dram at its upper end.Carry out gas cut experiment time, drilling fluid pumps into simulation wellbore hole annular space by brush DC water pump, and return out to cyclic water tank realize circulation of drilling fluid utilize; Air compressor machine stablizes source of the gas as gas, and by precise pressure regulating valve adjustment gas pressure and gas cut speed; Adopt pressure sensor real time record bottom pressure simultaneously, adopt high-speed camera record pit shaft flow pattern of gas-liquid two-phase flow situation of change.
Above-mentioned deepwater drilling pit shaft gas cut simulation visual experimental apparatus, described simulation drill string upper end is connected with motor seal, and is positioned between two parties in the middle of simulation wellbore hole by centralizer.
Above-mentioned deepwater drilling pit shaft gas cut simulation visual experimental apparatus, described connector is by sealing ring connecting analog pit shaft, and according to the preferred sealing ring usage quantity of sealing situation, air inlet port and inlet are provided with screw thread, and at air inlet port place built-in relieving stagnant Qi filter core, true reflection formation gas invades wellbore conditions.
The beneficial effects of the utility model are: deepwater drilling pit shaft gas cut simulation visual experimental apparatus, structure is simple, easy to use, intuitively truly can reflect that in drilling process, rear pit shaft flow pattern of gas-liquid two-phase flow change and bottom pressure Changing Pattern appear in gas cut, formulate well control plan for science and reliable basis is provided, there is larger application value.
Accompanying drawing explanation
Fig. 1 is deepwater drilling pit shaft gas cut simulation visual experimental apparatus system schematic.
Fig. 2 is connector schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
As shown in Figure 1, the utility model deepwater drilling pit shaft gas cut simulation visual experimental apparatus, comprises air compressor machine 1, precise pressure regulating valve 2, gasholder 3, glass rotameter 4, non retern valve 5, connector 6, pressure sensor 7, dc source 8, data handling system 9, brush DC water pump 10, cyclic water tank 11, motor 12, simulation wellbore hole 13, simulation drill string 14, high-speed camera 15; Carry out gas cut experiment time, drilling fluid pumps into simulation wellbore hole 13 annular space by brush DC water pump 10, and return out to cyclic water tank 11 realize circulation of drilling fluid utilize; Air compressor machine 1 stablizes source of the gas as gas, and adjusts gas cut speed by precise pressure regulating valve 2; Adopt pressure sensor 2 real time record bottom pressure simultaneously, adopt high-speed camera 15 to record pit shaft flow pattern of gas-liquid two-phase flow situation of change.In order to meet kinds of experiments operating mode, can realizing simulation drill string 14 different rotation rates by regulating motor 12, the different simulation drill string degree of depth can be realized by regulating mine shaft depth residing for simulation drill string 14; Different liquids circular flow is realized by regulating dc source 8 voltage; Different gas cut speed can be realized by adjustment precision pressure regulator valve 2 and glass rotameter 4.As shown in Figure 2, connector 6 is by sealing ring 11 connecting analog pit shaft 13, and according to sealing situation preferred sealing ring 11 usage quantity, air inlet port 62 and inlet 63 are provided with screw thread, and at the built-in relieving stagnant Qi filter core in air inlet port 62 place, true reflection formation gas invades wellbore conditions.
This device has good practicality, reliability and validity, and at utmost can reduce installation cost, has larger application value.
Claims (3)
1. deepwater drilling pit shaft gas cut simulation visual experimental apparatus, comprises air compressor machine (1), precise pressure regulating valve (2), gasholder (3), glass rotameter (4), non retern valve (5), connector (6), pressure sensor (7), dc source (8), data handling system (9), brush DC water pump (10), cyclic water tank (11), motor (12), simulation wellbore hole (13), simulation drill string (14), high-speed camera (15); Described connector (6) comprises sealing ring (61), air inlet port (62), inlet (63); It is characterized in that simulation wellbore hole (13) selects transparent organic glass pipe, and wall has leakage fluid dram at its upper end.
2. deepwater drilling pit shaft gas cut simulation visual experimental apparatus according to claim 1, it is characterized in that: simulation drill string (14) upper end and motor (12) are tightly connected, and be positioned between two parties in the middle of simulation wellbore hole (13) by centralizer.
3. deepwater drilling pit shaft gas cut simulation visual experimental apparatus according to claim 1, it is characterized in that: connector (6) is by sealing ring (11) connecting analog pit shaft (13), and according to sealing situation preferred sealing ring (11) usage quantity, air inlet port (62) and inlet (63) are provided with screw thread, and at the built-in relieving stagnant Qi filter core in air inlet port (62) place, true reflection formation gas invades wellbore conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542260.7U CN204113272U (en) | 2014-09-19 | 2014-09-19 | Deepwater drilling pit shaft gas cut simulation visual experimental apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542260.7U CN204113272U (en) | 2014-09-19 | 2014-09-19 | Deepwater drilling pit shaft gas cut simulation visual experimental apparatus |
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| CN204113272U true CN204113272U (en) | 2015-01-21 |
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| CN201420542260.7U Expired - Fee Related CN204113272U (en) | 2014-09-19 | 2014-09-19 | Deepwater drilling pit shaft gas cut simulation visual experimental apparatus |
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Cited By (21)
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| CN105735965A (en) * | 2016-04-07 | 2016-07-06 | 中国地质大学（武汉） | Coal-bed gas well shaft drainage gas recovery visual simulation experiment device and simulation method |
| CN105937394A (en) * | 2016-05-26 | 2016-09-14 | 杭州电子科技大学 | Downhole annulus pressure simulation experiment apparatus and method |
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| CN106297527A (en) * | 2016-10-21 | 2017-01-04 | 西南石油大学 | A kind of vertical tube flow pattern of gas-liquid two-phase flow demonstrating experiment device |
| CN106351621A (en) * | 2016-09-08 | 2017-01-25 | 中国石油大学(华东) | Experiment equipment used for studying gas invasion and migration mechanism of oil and gas pitshaft |
| CN106677766A (en) * | 2016-12-26 | 2017-05-17 | 中国石油大学(华东) | Experiment device for measuring low-frequency elastic wave response characteristic after liquid annular air cut |
| CN107060737A (en) * | 2017-05-26 | 2017-08-18 | 中国石油天然气集团公司 | One kind is with brill gas cut analogue experiment installation and experimental method |
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| CN108397191A (en) * | 2018-03-28 | 2018-08-14 | 中海石油(中国)有限公司湛江分公司 | A kind of wellbore stability experimental provision of simulation oil/gas well underground actual condition |
| CN108645582A (en) * | 2018-05-31 | 2018-10-12 | 西南石油大学 | A kind of well drilling of shallow sea high gas rate well flow string vibration deformation experimental provision and method |
| CN108798638A (en) * | 2018-08-15 | 2018-11-13 | 中国石油大学(北京) | A kind of experimental provision for simulating Shallow fluid intrusion pit shaft |
| CN108894772A (en) * | 2018-09-14 | 2018-11-27 | 中国石油大学(华东) | A kind of high-temperature and high-pressure visual pit shaft gas-liquid flow morphotype draft experiment device and method |
| CN109000913A (en) * | 2018-07-09 | 2018-12-14 | 西南石油大学 | A kind of high temperature and pressure high yield deep-well completion tubular column dynamics experimental device and method |
| CN110853475A (en) * | 2019-11-25 | 2020-02-28 | 中国海洋石油集团有限公司 | Deep sea drilling process pit shaft oil gas invasion simulation test device |
| CN111028648A (en) * | 2019-12-19 | 2020-04-17 | 中海石油(中国)有限公司 | Deep water drilling deep gas invasion simulation test system and method |
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| CN111175539A (en) * | 2020-02-18 | 2020-05-19 | 中国海洋石油集团有限公司 | Device and method for testing rising speed of bubbles in drilling fluid under high-temperature and high-pressure rotating condition |
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- 2014-09-19 CN CN201420542260.7U patent/CN204113272U/en not_active Expired - Fee Related
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| CN105735965A (en) * | 2016-04-07 | 2016-07-06 | 中国地质大学（武汉） | Coal-bed gas well shaft drainage gas recovery visual simulation experiment device and simulation method |
| CN105735965B (en) * | 2016-04-07 | 2018-09-14 | 中国地质大学（武汉） | Coal bed gas well pit shaft internal drainage gas production visual Simulation experimental provision and analogy method |
| CN105937394A (en) * | 2016-05-26 | 2016-09-14 | 杭州电子科技大学 | Downhole annulus pressure simulation experiment apparatus and method |
| CN105937394B (en) * | 2016-05-26 | 2023-08-15 | 杭州电子科技大学 | Underground annulus pressure simulation experiment device and method |
| CN106089183A (en) * | 2016-08-18 | 2016-11-09 | 重庆科技学院 | Micrometeor test experience device |
| CN106089183B (en) * | 2016-08-18 | 2019-05-03 | 重庆科技学院 | Micrometeor test experience device |
| CN106351621B (en) * | 2016-09-08 | 2018-11-20 | 中国石油大学(华东) | For studying the experimental facilities of oil gas wellbore gas intrusion and migration mechanism |
| CN106351621A (en) * | 2016-09-08 | 2017-01-25 | 中国石油大学(华东) | Experiment equipment used for studying gas invasion and migration mechanism of oil and gas pitshaft |
| CN106297527A (en) * | 2016-10-21 | 2017-01-04 | 西南石油大学 | A kind of vertical tube flow pattern of gas-liquid two-phase flow demonstrating experiment device |
| CN106677766B (en) * | 2016-12-26 | 2018-07-31 | 中国石油大学(华东) | A kind of experimental provision for measuring Breakup of Liquid Ring air and invading rear low-frequency elastic wave response characteristic |
| CN106677766A (en) * | 2016-12-26 | 2017-05-17 | 中国石油大学(华东) | Experiment device for measuring low-frequency elastic wave response characteristic after liquid annular air cut |
| CN107060737B (en) * | 2017-05-26 | 2020-09-08 | 中国石油天然气集团公司 | While-drilling gas invasion simulation experiment device and experiment method |
| CN107060737A (en) * | 2017-05-26 | 2017-08-18 | 中国石油天然气集团公司 | One kind is with brill gas cut analogue experiment installation and experimental method |
| CN107387072A (en) * | 2017-07-20 | 2017-11-24 | 中国石油化工股份有限公司 | A kind of HTHP gas-liquid replaces lab simulation evaluating apparatus |
| CN107842355A (en) * | 2017-09-24 | 2018-03-27 | 西南石油大学 | One kind measurement annulus multi phase flow fluidised form and fluid pressure experimental provision |
| CN108397191A (en) * | 2018-03-28 | 2018-08-14 | 中海石油(中国)有限公司湛江分公司 | A kind of wellbore stability experimental provision of simulation oil/gas well underground actual condition |
| CN108645582B (en) * | 2018-05-31 | 2022-04-22 | 西南石油大学 | Shallow sea drilling high-yield gas well production pipe column vibration deformation experimental device and method |
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| CN108894772A (en) * | 2018-09-14 | 2018-11-27 | 中国石油大学(华东) | A kind of high-temperature and high-pressure visual pit shaft gas-liquid flow morphotype draft experiment device and method |
| CN111089940A (en) * | 2018-10-24 | 2020-05-01 | 中国石油化工股份有限公司 | Evaluation device and evaluation method for desulfurization effect of desulfurizing agent |
| CN110853475A (en) * | 2019-11-25 | 2020-02-28 | 中国海洋石油集团有限公司 | Deep sea drilling process pit shaft oil gas invasion simulation test device |
| CN111028648A (en) * | 2019-12-19 | 2020-04-17 | 中海石油(中国)有限公司 | Deep water drilling deep gas invasion simulation test system and method |
| CN111175539A (en) * | 2020-02-18 | 2020-05-19 | 中国海洋石油集团有限公司 | Device and method for testing rising speed of bubbles in drilling fluid under high-temperature and high-pressure rotating condition |
| CN114541991A (en) * | 2020-11-24 | 2022-05-27 | 中国石油天然气股份有限公司 | Drilling overflow experiment simulation device |
| CN114541991B (en) * | 2020-11-24 | 2023-12-26 | 中国石油天然气股份有限公司 | Drilling overflow experiment simulation device |
| CN113338907B (en) * | 2021-07-08 | 2022-04-12 | 西南石油大学 | Gas drilling stratum effluent gas water carrying simulation experiment device |
| CN113338907A (en) * | 2021-07-08 | 2021-09-03 | 西南石油大学 | Gas drilling stratum effluent gas water carrying simulation experiment device |
| CN116241243B (en) * | 2023-05-12 | 2023-07-21 | 中国石油大学(华东) | Experimental device and method for gas invasion and pressing back of stratum in wellbores with different dip angles |
| CN116241243A (en) * | 2023-05-12 | 2023-06-09 | 中国石油大学(华东) | Experimental device and method for gas invasion and pressing back of stratum in wellbores with different dip angles |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20150919 |
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| EXPY | Termination of patent right or utility model |