CN102518432B - Test device capable of simulating plugging of high temperature and high pressure dropping strata - Google Patents

Test device capable of simulating plugging of high temperature and high pressure dropping strata Download PDF

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CN102518432B
CN102518432B CN 201110439139 CN201110439139A CN102518432B CN 102518432 B CN102518432 B CN 102518432B CN 201110439139 CN201110439139 CN 201110439139 CN 201110439139 A CN201110439139 A CN 201110439139A CN 102518432 B CN102518432 B CN 102518432B
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connected
pressure
tank
reactor body
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CN102518432A (en )
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李早元
郭小阳
邓智中
程小伟
杨绪华
李明
林友建
辜涛
赵启阳
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西南石油大学
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Abstract

本发明涉及高温高压漏失地层模拟封堵测试装置,主要由气源、油箱、上釜体、下釜体、水源、磁力驱动器、中央处理系统、集液罐组成,上釜体连接油箱、气源,下釜体连接水源,上釜体、下釜体既分别连接加压泵、泄压泵,又分别连接压力传感器和热电偶,该压力传感器、热电偶与中央处理系统相连;上釜体内部有浆叶,浆叶转轴通过磁力驱动器被变频电机带动旋转;下釜体内部有模拟岩心并连接集液罐。 The present invention relates to high temperature and pressure leakage formation analog occlusion test device, primarily from the gas source, the tank, the reactor body, the reactor body, water, magnetic drives, central processing system, canister composition, the kettle body connecting the tank, the gas source, connected to the water tank body, the reactor body, the reactor body are connected to both the pressure pump, pump relief, and are connected to a pressure sensor and a thermocouple, connected to the pressure sensors, thermocouples and the central processing system; inner vessel body having upper blade , by a blade shaft is rotated the magnetic drive motor inverter; inside the reactor body and is connected to an analog core collection tank. 本发明能模拟钻井工作液在不同井深、温度、压力、漏失类型的地层条件、浆体流态以及井筒和地层之间高温高压下的压差等复杂工况条件,测试堵漏相关参数确定漏失封堵效果,从而优选出钻井工作液体系。 The present invention can simulate the drilling fluid pressure at high temperature and pressure between the different depth, temperature, pressure, type of leakage formation conditions, and the slurry flow regime of wellbore and formation and other complex working conditions, leakage testing plugging and Parameters plugging effect, whereby preferably the drilling fluid system.

Description

高温高压漏失地层模拟封堵测试装置 High temperature and pressure leakage testing device formation analog occlusion

所属技术领域 Those of skill

[0001] 本发明涉及一种能较好地实时模拟钻完井工作液在井筒内动态流动至漏层全过程并对进行动态封堵的评价仪器。 [0001] The present invention relates to a real-time simulation can well drilling and completion fluid in the wellbore to the dynamic flow of the drain layer and the whole process of evaluation of the dynamic sealing equipment. 通过对不同井深的温度、压力、漏失通道等地层条件,流动状态、压差等复杂工况下封堵效果的测试评价优选出与漏失环境相匹配的堵漏材料及相应的堵漏浆体体系,实现了对石油、天然气勘探开发钻井、固井、完井、修井、打水泥塞、挤水泥等作业过程中井筒和地层都处于高压下的漏失环境模拟及封堵效果的测试。 Evaluation of test conditions by blocking the effect of different depth Complex Formation of temperature, pressure, and other channel loss, the flow state, and the pressure loss or the like is preferably match the environment plugging slurry plugging material and the corresponding system , the realization of oil and gas exploration and development drilling, cementing, completion, workover, cementing plug, squeeze cementing and other operations during the test are in the wellbore and formation and leakage blocking effect simulation environment under high pressure.

背景技术 Background technique

[0002] 钻完井及后续作业过程中经常遇到同一裸眼井段存在多套压力体系,不同方向构造应力作用促使纵横交错裂缝发育,地层水的溶蚀形成大小不同的溶洞等复杂地质条件,由于井筒内的有效液柱压力和地层压力不平衡当连通通道开启时常出现井漏、又漏又喷等复杂井下情况。 [0002] and the subsequent drilling and completion operations are commonly encountered during pressure systems there are multiple sets of the same openhole, configured crisscross cause stress fractures in different directions, the formation water is formed dissolution complicated geological conditions caves and other different sizes, since effective column pressure in the wellbore and the formation pressure imbalance often occur when the communication channel open drain well, and drain and other complex spray hole conditions. 如果不能及时采取有效的防漏堵漏措施将会严重影响继续作业,导致工程周期的延长,相应成本的增加。 If you can not take timely and effective measures to plugging the leak it will seriously affect the continuing operation, resulting in the extension of the project period, a corresponding increase in costs. 金鸡I井由于漏失从开钻到钻至井深520m堵漏100多次,耗时4. 5个月,该井共漏失工作液超过73000m3。 Rooster I drilled well leakage due to the drilling depth of 520m from plugging 100 times, consuming 4.5 months, a total loss of the well fluid than 73000m3. 塔深I井在钻至井深6237. 39m时发生井漏,钻至井深6800m四开完钻,该漏层累计漏失钻井液5624m3。 Tashen I occurs when the well drilled to a depth 6237. 39m drain well, drilled to a depth of 6800m quarto drilled, the drilling fluid leakage drain layer accumulated 5624m3.

[0003] 针对不同的地层特征、工况通过有效的模拟评价仪器优选出与之对应的堵漏材料和堵漏浆体体系,为堵漏工艺的确定及后续措施的制定,提供了有效的参考资料。 [0003] for different formation characteristics, operating conditions and the plugging slurry plugging material corresponding system through effective evaluation simulation apparatus preferably for sealing the development and follow-up of the process is determined to provide an effective reference data. 国内外实验室多用API室内静态堵漏评价装置,一次实验需要浆体多达的4000ML,常温、氮气加压不能对地层高温高压的地层环境得到有效的模拟,通过弹珠的随机堆积或6. 4_厚的缝板对于地层的模拟程度不高;国内相关专利有实用新型专利,如水泥浆堵漏模拟试验装置(ZL200520119105. 5),浆体在该仪器内是静态的模拟对于流态的变化没得到体现;一种钻井堵漏模拟试验装置(ZL200520070609. 4)下同体上下的滤网对封堵效果的影响较大引起模拟失真;钻井堵漏模拟试验装置(ZL02243296. 5),该仪器未能对实验相关参数进行实时采集,不便于实验结束后的分析;发明专利有智能高温高压动态堵漏评价实验仪(ZL200510019252.X)该装置中从不漏到漏失的过程没得到完整的模拟,且为氮气加压,对于高压是否对堵漏有影响没得到体现。 Domestic and laboratory multipurpose indoor API static sealing evaluation apparatus, up to an experiment requires 4000ML slurry, at room temperature, nitrogen pressure can not be effectively simulate the formation of high temperature and pressure formation environment through the random stacking or 6 marbles. 4_ slit plate thickness to simulate the degree of the formation is not high; domestic utility patent patents, such as water, mud plugging simulation test device (ZL200520119105 5.), the slurry is static simulation of variations in the flow patterns in the instrument not reflected; impact drilling a vertical filter plugging simulation test device (. ZL200520070609 4) for sealing the same below body effect caused by large distortion simulation; plugging drilling simulation test device (. ZL02243296 5), the instrument is not experiments can be performed on the real-time acquisition parameters, the end of the experiment after the analysis is not easy; intelligent Patent invention plugging HTHP dynamic evaluation test apparatus (ZL200510019252.X) never leak into the device did not give complete loss of process simulation, nitrogen and pressurized to a high pressure do not affect whether plugging reflected. 这些仪器共同的不足:对浆体是在两个高压系统下的压差下漏失没得到体现,对于封堵后期的继续作业中如果存在井筒压力低于漏层压力的情况对于前期的堵漏效果的影响不能进行有效的评价,对于堵剂随时间的推移由于环境的变化起物理、化学性能变化从而影响堵漏效果评价也没得到体现。 The lack of these instruments common: loss of slurry is under pressure at two high pressure systems have not been reflected, in case of plugging in the latter part of the continuing operation of the wellbore pressure is lower than if there is pressure for plugging the drain layer effect early the effects can not be effectively evaluated, for the blocking agent over time due to environmental changes from the physical and chemical properties change affecting sealing effect evaluation did not get reflected.

[0004] 因此,研究一种能有效模拟地层情况和现场工况的堵漏评价仪器优选出相应的堵漏材料及体系,对油田的开发具有十分重要的意义。 [0004] Thus, an effective tool simulation studies and site conditions of a formation evaluation instrument preferred plugging lost circulation materials and the corresponding system, is very important for the development of oil fields.

发明内容[0005] 本发明的目的在于提供一种高温高压漏失地层模拟封堵测试装置,该装置能够有效模拟钻井工作液在不同的井深、温度、压力、漏失类型的地层条件、浆体流态、以及井筒和地层之间高温高压下的压差等复杂工况条件。 SUMMARY OF THE INVENTION [0005] The object of the present invention is to provide a high temperature high pressure leakage testing device formation plugging simulation, the device can effectively simulate drilling fluid at formation conditions different depth, temperature, pressure, type of leakage, the slurry flow regime and complex conditions under high temperature and pressure conditions differential pressure between the wellbore and the formation. 利用该装置通过浆体漏失量、封堵层位、单位时间地层承压提高能力、反排替压力等堵漏相关参数进行测试基于地层破裂压力的高压下的漏失封堵效果,从而优选出钻井工作液体系,为现场施工提供室内依据。 With this arrangement the amount of leakage through the slurry, the bit sealing layer, formation pressure increase capacity per unit time, the anti-displacement pressure testing and other related parameters plugging leaked sealing effect under high pressure based on formation fracture pressure, preferably so that the drilling working fluid system, to provide a basis for indoor construction site.

[0006] 为达到以上技术目的,本发明提供以下技术方案。 [0006] To achieve the above technical object, the present invention provides the following technical solutions.

[0007] 高温高压漏失地层模拟封堵测试装置,有能模拟井筒内温度、压力、浆体流态的井筒模拟器,模拟不同漏失通道的模拟岩心,模拟井筒压力和地层压力之间压差的地层模拟器,给实验提供电气的能源,对于实验流体提供流通通道并可模拟不同漏失通道延伸方向以及不同类型的井别,实验进程中对相关参数进行实时调控、对实验结果进行采集的控制系统等,通过本发明,能够模拟钻井工作液从井筒模拟器中的前期养护到进入地层模拟器的后期养护连续进行过程、地层温度、地层压力、井筒与地层高温高压下的压差、流态以及不同类型的地层漏失通道等井下环境及在超过地层承压能力后的漏失情况,通过对实验结果的分析、解释从而对现场施工提出更有针对性的施工方案。 [0007] The high temperature high pressure leakage testing device formation plugging simulation, there wellbore simulator can simulate the wellbore temperature, pressure, slurry flow patterns, different analog simulation core leakage channel, the pressure difference between the simulated wellbore and formation pressure formation simulator, provides electrical energy to the experiment, the experimental fluid is supplied to the flow passage loss can simulate different types of channels extending in different directions, and other wells, the experimental parameters of the process for real-time control, the experimental results collected by the system control and the like, by the present invention, it is possible to simulate drilling fluid from the pre-curing the wellbore into the formation simulator post maintenance simulator continuous process, the pressure at the formation temperature, formation pressure, wellbore and formation temperature and high pressure, and flow regime different types of downhole formation leakage channels such as the environment and in case of leakage after the formation pressure exceeds the capacity, through the analysis of experimental results, in order to explain the proposed construction program more targeted on-site construction. [0008] 高温高压漏失地层模拟封堵测试装置,主要由气源、油箱、上釜体、下釜体、水源、磁力驱动器、变频电机、中央处理系统、数据显示系统、集液罐组成,其特征在于,所述上釜体有上釜盖、上釜体加热器,下釜体有下釜盖、下釜体加热器,上釜体和下釜体之间有中间釜盖和连通阀;所述上釜体连接油箱、气源并设有溢油观察口,上釜体还连有回油阀和回油气源,所述上釜体既分别连接上釜体加压泵、上釜体泄压泵,又分别连接上釜体压力传感器和上釜体热电偶,该压力传感器、热电偶与中央处理系统相连;所述下釜体连接水源并设有溢水观察口,所述下釜体既分别连接下釜体加压泵、下釜体泄压泵,又分别连接下釜体压力传感器和下釜体热电偶,该压力传感器、热电偶与中央处理系统相连。 [0008] The high temperature high pressure leakage formation analog occlusion test device, primarily from the gas source, the tank, the reactor body, the reactor body, water, magnetic drive, inverter motor, the central processing system, a data display system, liquid collecting tank, and is characterized said upper body having the pot lid was the heater kettle body, the body having the pot lid was intermediate between the tank lid and the vessel valve body communication heater, the vessel and the lower vessel body; the said reactor body connecting the tank, the gas source and a viewing port spill, the reactor body is also connected with a return valve and a return oil source, the said reactor body are connected to both the vessel body pressure pump, the pump relief kettle body, and are connected to the pressure sensor and the kettle body vessel body thermocouple connected to the pressure sensors, thermocouples and central processing system; kettle body is connected to the lower water overflow and a viewing port, said lower vessel body are both connected to the pressurized reactor body pump, pump relief reactor body, the reactor body and is connected at the pressure sensor and the reactor body thermocouple connected to the pressure sensor, a thermocouple with the central processing system.

[0009] 所述上釜体内部装有浆体和浆叶,浆叶上依次有垫圈、隔膜片和压盖以分隔浆体和上部的加压介质,浆叶转轴通过磁力驱动器被变频电机带动旋转,该电机与中央处理系统相连。 [0009] The slurry containing the kettle body and inner blade, the blade has successively washer, lid and diaphragm to separate the pressurized medium of the slurry and an upper portion, by a blade shaft is driven by magnetic drive motor inverter rotating, the machine is connected to the central processing system.

[0010] 所述下釜体内部装有模拟岩心,所述模拟岩心中有漏失通道,中间釜盖下部通过螺纹和模拟岩心连接,实现密封。 [0010] The interior of the kettle body equipped with an analog core, the cores have a leakage path simulation, the lower portion of the middle tank lid by screwing and simulated core, sealing.

[0011] 所述下釜体连接集液罐,集液罐连有电子天平,电子天平与中央处理系统相连。 The [0011] the liquid collecting tank connected to the reactor body, the liquid collecting tank is connected with an electronic balance, electronic balance connected to a central processing system. 为了冷却从下釜体出来的高温液体,集液罐还连有冷凝器。 In order to cool the high-temperature liquid out from the tank body, the canister is also connected with a condenser.

[0012] 所述上釜体、下釜体分别连接上釜体爆破片、下釜体爆破片,高压管路装有爆破片,用来保护整个超高压系统及操作人员的安全。 [0012] on the reactor body, the reactor body are connected to the reactor body bursting disc, the kettle body rupture disc bursting disc with high-pressure line, to protect the security of the entire system and EHV operator.

[0013] 所述中央处理系统连接数据显示系统。 [0013] The central data processing system connected to the display system.

[0014] 本发明上釜体的釜盖上部装有磁力驱动器,磁力驱动器通过三角带和变频电机相互连接实现同线速度的转动为釜体内部的浆叶的转动提供原动力,上釜盖设计有溢油观察口,上釜体内部设计和稠化浆杯相似,浆叶转轴和磁力驱动器相连,在浆叶和磁力驱动器之间有垫圈、隔膜片和压盖,上釜体通过加压管线和泄压管线分别与加压泵和泄压泵相连,力口压泵通过气源把油箱里面的油推进加压泵然后通过加压泵不断的对上釜体用油作为加压介质进行加压,在实验完毕通过回油管线并对油箱排气把釜体内部的油压回油箱,压力传感器位于高压管路上用来测试釜内压力,热电偶直接插入釜体内部,压力传感器和热电偶终端连接中央处理系统并通过显示系统以图文形式显示出来,用来保护整个超高压系统及操作人员的安全,上釜体和下釜体通过中间釜盖 Rotational [0014] pot cover portion according to the present invention, the kettle body equipped with magnetic drives, magnetic drives connected achieve the same linear velocity through the belt and the inverter motor each for internal tank body paddle provides the motive force on the kettle cover design observation spill port, the kettle body and inner thickened slurry cup design is similar to the rotary shaft and the blades are connected magnetic drive, a gasket, between the lid and the diaphragm blades and the magnetic drive, and the autoclave by a press line relief lines respectively connected to pump pressure pump and the relief force through the air supply port pressure pump inside the tank to promote the oil pressure pump of the reactor body and pressurized by the oil pressure pump as a continuous pressurizing medium in the experiment is completed by the tank exhaust gas return line and the hydraulic pressure inside the vessel back to the tank body, the high pressure piping pressure sensor is located within a test vessel for pressure, thermocouple inserted directly inside the reactor body, a pressure sensor and a thermocouple terminal connecting the central processing system and displayed in graphic form by the display system to protect the security of the entire system and EHV operator, the vessel and the lower vessel through the intermediate body kettle lid 的连通阀实现连通或隔断,中间釜盖下部通过螺纹和模拟岩心连接,在模拟岩心外部是通过水源进行升温、升压的实现,下釜体顶部有溢水观察口,下釜体有加压泵和压力传感器,还连接有热电偶和水源,下釜体也连有泄压泵,还连有集液罐,在釜体之间的连通阀打开时,上釜体的浆体在压差的作用下通过连通阀进入下部裂缝并排出相应体积的水到集液罐,在集液罐收集后进入电子天平的烧杯,电子天平直接和中央处理系统相连。 The communication valve into communication or blocked, the intermediate kettle cover a lower portion by a threaded connection and the analog core, the simulated external core is heated by the water, the top of the voltage boosting of the kettle body with overflow viewing port, the tank body having a pressurizing pump and pressure sensor is also connected with a thermocouple and water, the kettle body there is also connected a pressure relief of the pump, also connected with a liquid collecting tank, when the communication between the kettle body to open the valve, the tank body through the slurry at a pressure differential communication valve into the lower fracture and the corresponding volume of water discharged into the collection tank, in a beaker set into the electronic balance after collection tank, and an electronic balance directly connected to the central processing system.

[0015]本发明中,井筒模拟器由上釜体采用加热器、加压泵和泄压泵并通过上釜体压力传感器、上釜体热电偶和中央处理系统相连,完成对数据进行采集、传输、控制,上釜体使用最高温度为200°C,压力为120MPa,用于模拟不同井深钻井工作液在由井眼到漏失地层流动过程中温度和压力的变化过程。 [0015] In the present invention, the kettle body by a wellbore simulator using the heater, the pump and the relief pressure pump and the pressure sensor through the reactor body, the reactor body is connected to a thermocouple and a central processing system, the data collection is completed, transmission control, the highest temperature of the kettle 200 ° C, a pressure of 120MPa, to simulate different depth of the drilling fluid change process by the temperature and pressure in the eye to the well formation during the flow loss.

[0016] 本发明中,上釜体内部装有浆叶且浆叶上有垫圈、隔膜片、压盖以分隔浆体和上部的加压介质,浆叶转轴连接磁力驱动器和变频电机,用于模拟不同井深钻井工作液在井眼到漏失地层流动过程中流态的变化。 [0016] In the present invention, the inner pot body is provided with a paddle and gaskets, diaphragms, the pressurized medium to separate the slurry gland and the upper paddle, paddle magnetic drive shaft connecting the motor and the inverter, for simulate different depth drilling fluid flow leakage during change of formation in the well flowing state your eyes.

[0017] 本发明中,地层模拟器由下釜体采用加热器、加压泵、泄压泵并通过下釜体压力传感器、下釜体热电偶和中央处理系统相连通,在此系统设计使用最高温度为200°C,压力120MPa,模拟不同井深和类型的漏失层段地层环境并让堵浆在此进行后期养护。 [0017] the present invention, the heater is used by the simulator formation kettle body, the compression pump, the pump and pressure relief by the pressure sensor at the reactor body, the reactor body thermocouples and a central processing system communicates, the highest temperature in the system design 200 ° C, pressure of 120MPa, to simulate different types of leakage and depth intervals so that blocking the formation environment and post-cured in this slurry.

[0018] 本发明中,地层模拟器的的泄压泵保证了在上釜体的高压流体进入地层模拟器时模拟地层在高压下泄压并通过集液罐收集漏失的液体,在集液罐下有电子天平和中央处理系统相连,模拟在现场钻进过程中钻开易漏地层当井眼内有效液柱压力高于地层破裂压力而压破地层引发的钻井工作液在高温高压下漏失的情况。 [0018] In the present invention, the formation of the simulator ensures that the liquid pump relief simulated formation when the high pressure fluid into the formation on the vessel body at a high pressure relief simulator dropout and collected by the liquid collecting tank, the liquid collecting tank there is connected to an electronic balance and a central processing system, the analog in the field during drilling when the drilled formation leaky effective wellbore fluid column pressure above the formation fracture pressure caused by the formation crushing drilling fluid loss at high temperature and pressure conditions .

[0019] 本发明中,与集液罐相连的冷凝器用于对高于100°C的高温高压液体进行收集。 [0019] In the present invention, the condenser is connected to the header tank for a high temperature of 100 ° C higher than the high-pressure liquid collected.

[0020] 本发明中,井筒模拟器上釜体和地层模拟器下釜体通过连通阀实现开启和关闭,模拟井筒和地层在漏失前分别处于两个不同的高温高压体系,在漏失时处于两个高温高压下的压差。 [0020] In the present invention, the kettle body and the formation of the borehole simulator kettle body simulator achieved by opening and closing the communication valve, borehole and formation are simulated at two different temperature and pressure in the system before the loss, when dropout is two pressure at high temperature and pressure. 上釜体和下釜体通过旋转主轴同轴旋转,以模拟不同延伸方向的漏失通道以及水平井、大位移井、定向井等不同类型的井在不同工况下的漏失情况。 The vessel and the lower vessel body by the rotation of the rotary shaft coaxially to simulate different conditions of leakage where leakage channel and horizontal wells, extended reach wells, such as different types of directional drilling wells at different extending directions.

[0021] 与现有技术相比,本发明具有如下有益效果: [0021] Compared with the prior art, the present invention has the following advantages:

[0022] 本发明能够在室内有效的模拟地下温度(最高使用温度200°C )、压力(最高使用120MPa)及浆体在井筒内不同泵送速度下的流动状态;对以前的裂缝进行了延长,在实验结束后可以拆开直接观察封堵效果,并且对岩心设计了孔隙裂缝介质模型和不同的孔喉比以及不同延伸方向;漏失前井筒模拟器内的前期养护和漏失后地层模拟器中的后期养护处于各自独立的温度、压力控制系统,一改以前仪器盛浆筒和模拟岩心相互连通并只能实现正压差情况不能模拟井筒内出现负压差的情况,能有效模拟由于井筒内浆体有效压力高于地层承压能力引发的地层在高温、高压下的漏失情况;仪器整体可以旋转,达到对漏失通道在地层中的不同延伸方向和直井,斜井,水平井等不同类型的井况的模拟;并且对数据实施实时采集,方便下一步的有效分析。 [0022] The present invention can effectively simulate underground chamber temperature (maximum temperature 200 ° C), pressure (maximum use 120MPa) and a slurry state at different pumping flow rate in the well bore; cracks were previously extended , after the end of the experiment plugging effect can be disassembled directly observed, and the design of the core medium pore fracture models and different than the pore throat and extending in different directions; early after curing and leakage loss in the wellbore prior to the formation simulator simulator the separate post maintenance in temperature, pressure control system, a change from the previous simulation and instrumentation tube filled pulp core communicate with each other and can only achieve a negative pressure difference occurs within the wellbore positive pressure situation can not be simulated, since the wellbore can effectively mimics slurry formation pressure is higher than the effective bearing capacity of the formation-induced loss under high-temperature, high pressure; the whole apparatus can be rotated to achieve different directions and extend different types of wells, inclined wells, horizontal wells, the formation of leakage channels in the simulated well conditions; and real-time data acquisition embodiments, effective to facilitate the next analysis.

附图说明 BRIEF DESCRIPTION

[0023] 图I为本发明结构示意图; [0023] Figure I is a structural schematic view of the invention;

[0024] 图2为本发明上釜体、下釜体装配示意图; [0024] FIG. 2 of the present invention the reactor body, the reactor body schematic assembly;

[0025] 图3为本发明上釜体内部结构示意图; [0025] FIG. 3 is a schematic internal configuration of the present invention the reactor body;

[0026] 图4为本发明下釜体内部结构示意图。 [0026] FIG. 4 is a schematic internal configuration of the reactor body of the present invention. [0027] 图中: [0027] FIG:

[0028] I、气源,2、油箱进气阀,3、油箱排气阀,4、油箱,5、进油阀、6、回油阀,7、下釜体泄压泵,8、溢水观察口,9、上釜体,10、上釜盖,11、上釜体泄压泵,12、冷凝器,13、集液罐,14、电子天平,15、下釜盖,16、下釜体加热器,17、下釜体,18、中间釜盖,19、上釜体加热器,20、磁力驱动器,21、溢油观察口,22、变频电机,23、上釜体爆破片,24、上釜体压力传感器,25、上釜体热电偶,26、下釜体压力传感器,27、下釜体热电偶,28、水源,29、下釜体爆破片,30、下釜体加压泵,31、上釜体加压泵,32、回油气源,33、数据显示系统,34、中央处理系统,35、连通阀,36、旋转主轴,37、浆叶转轴,38、压盖,39、隔膜片,40、垫圈,41、浆叶,42、模拟岩心,43、漏失通道 [0028] I, gas source 2, the tank inlet valve 3, the tank ventilation valve 4, the fuel tank 5, the inlet valve 6, the oil return valve 7, the kettle body relief pump, 8, overflow observed port 9, the tank body 10, the tank cover 11, the pump pressure relief vessel body 12, a condenser 13, collection tank, 14, electronic balance 15, the tank cover 16, the tank heater body 17, the lower vessel body 18, the intermediate tank lid 19, the reactor body heater 20, magnetic drives, 21, spill view port 22, inverter motor, 23, the reactor body bursting disc, 24, the reactor body a pressure sensor 25, the reactor body thermocouple 26, the reactor body pressure sensor 27, the reactor body thermocouples, 28, water 29, the reactor body bursting disc 30, the reactor body pressure pump 31, the reactor body plus pump 32, back to the oil and gas source 33, the data display system 34, the central processing system 35, the communication valve, 36, rotation of spindle 37, blade shaft, 38, lid 39, diaphragm 40, a gasket , 41, blades 42, the analog core, 43, the channel leakage

具体实施方式 detailed description

[0029] 参看图I、图2、图3。 [0029] Referring to Figure I, Figure 2, Figure 3.

[0030] 高温高压漏失地层模拟封堵测试装置,主要由气源I、油箱4、上釜体9、下釜体17、水源28、磁力驱动器20、变频电机22、中央处理系统34、数据显示系统33、集液罐13组成,其特征在于,所述上釜体9有上釜盖10、上釜体加热器19,下釜体17有下釜盖15、下釜体加热器16,上釜体和下釜体之间有中间釜盖18和连通阀35 ;所述上釜体通过进油阀5连接油箱4并设有溢油观察口21,油箱4通过油箱进气阀2连接气源I,油箱连有油箱排气阀3,上釜体连有回油阀6和回油气源32,所述上釜体既分别连接上釜体加压泵31、上釜体泄压泵11,又分别连接上釜体压力传感器24和上釜体热电偶25,该压力传感器、热电偶与中央处理系统34相连;所述下釜体连接水源28并设有溢水观察口8,所述下釜体既分别连接下釜体加压泵30、下釜体泄压泵7,又分别连接下釜体压力传感器26和下釜体热 [0030] The high temperature high pressure leakage formation analog occlusion test device, primarily from the gas source I, the tank 4, the reactor body 9, the tank 17, water 28, a magnetic actuator 20, variable frequency motor 22, the central processing system 34, the data display system 33, collection tank 13, and is characterized in that, the upper vessel body 9 has on the kettle cover 10, the reactor body heater 19, the tank 17 has the tank cover 15, the reactor body heater 16, the tank and the lower tank has an intermediate body between the lid 18 and the tank 35 communicates valve; on the kettle body is connected via the inlet valve 5 and the tank 4 is provided with spill viewing port 21, the fuel tank 4 through the tank inlet valve 2 connected to a gas source I, and even a tank oil tank vent valve 3, the tank body 6 is connected with a return valve 32 and back to the source of oil and gas, both the upper member are connected to the kettle reactor body pressurization pump 31, the pump pressure relief vessel body 11, and are connected to the the kettle pressure sensor 24 and the thermocouple on the reactor body 25, which is connected to a pressure sensor, a thermocouple 34 with the central processing system; kettle body is connected to the lower water overflow 28 and a viewing port 8, the lower vessel body are both connected to the reactor body pressurizing pump 30, the pump relief tank body 7, and are connected to the reactor body 26 and lower body heat under autoclave pressure sensor 电偶27,该压力传感器、热电偶与中央处理系统34相连;所述上釜体内部有浆叶41,浆叶转轴37通过磁力驱动器20被变频电机22带动旋转,该电机与中央处理系统34相连;所述下釜体连接冷凝器12和集液罐13,集液罐连有电子天平14,电子天平与中央处理系统34相连;所述中央处理系统连接数据显示系统33。 Thermocouple 27 is connected to the pressure sensor, a thermocouple 34 with the central processing system; said inner vessel body having upper blade 41, blade 20 is shaft 37 rotated by a magnetic force 22 inverter drive motor, the motor and the central processing system 34 connected; said lower vessel body 12 and the current collector connecting the condenser tank 13, the canister 14 is connected with an electronic balance, electronic balance connected to the central processing system 34; the central data processing system connected to the display system 33.

[0031] 所述上釜体、下釜体分别连接上釜体爆破片23、下釜体爆破片29。 [0031] on the reactor body, the reactor body are connected to the reactor body rupture disc 23, the rupture disc 29 at the kettle.

[0032] 参看图2。 [0032] Referring to FIG.

[0033] 上釜体和下釜体之间有中间釜盖18,并通过旋转主轴36同轴旋转,以模拟不同延伸方向的漏失通道以及水平井、大位移井、定向井等不同类型的井在不同工况下的漏失情况。 [0033] Between the upper and lower reactor vessel body and the lid body intermediate tank 18, and by rotation of the spindle 36 rotate coaxially, extending in a direction to simulate different types of channels, and loss of horizontal wells, extended reach wells, wells in directional wells dropout situation different conditions.

[0034] 参看图3。 [0034] Referring to Figure 3.

[0035] 所述上釜体内部装有浆体和浆叶41,浆叶上依次有垫圈40、隔膜片39和压盖38以分隔浆体和上部的加压介质,浆叶转轴37通过磁力驱动器被变频电机带动旋转。 [0035] with the inner blade 41 and slurry, the tank body has paddle washer 40 sequentially, diaphragm 39 and the gland 38 to separate the upper portion of the pressurized medium and the slurry, the rotary shaft 37 by a magnetic blade inverter drive motor is rotated.

[0036] 参看图4。 [0036] Referring to Figure 4.

[0037] 所述下釜体内部装有模拟岩心42,所述模拟岩心有漏失通道43,中间釜盖18通过螺纹和模拟岩心42连接,实现密封。 The interior of [0037] the reactor core body 42 provided with an analog, said analog has a core leakage channel 43, intermediate vessel 18 is connected by a screw cap and the analog core 42, sealing.

[0038] 实验时组装好岩心并和中间釜盖用螺纹无缝连接,放入下釜体中,关闭连通阀,装好上釜体,放入浆叶倒浆,装好垫圈、隔膜片和压盖,上釜盖连接电机,打开气源不断向油箱进气,把油箱的油压入上釜体,直到溢油观察口有油溢出为止,关好溢流口的阀门,同时不断的给下釜体供水,直到溢水口有水溢出为止,关好溢水口的阀门,在中央数据处理系统对温度和压力进行设置,打开上釜体加压泵,下釜体加压泵,上釜体加热器,下釜体加热器,上釜体泄压阀,下釜体泄压阀,让浆体在上釜体进行前期养护,在养护完毕后打开中间釜盖让养护好的浆体在压差的情况下不断进入下釜体,同时下釜体内有等体积的浆体不断从集液罐流出,上釜体内由于浆体流出压力不断的下降,同时上釜体加压泵不断补压,如果浆体能在漏失通道中承受一定的压力则 [0038] When assembling the core and a good test and seamless intermediate threaded lid was placed in the reactor body, closing the communication valve, installed on the tank body, the slurry poured into the blades, installed washers, diaphragms, and pressure lid, the lid connected to the motor vessel, the gas source to keep the intake tank, the tank oil into the kettle body, until the oil spill viewport overflows, an overflow of good close the valve, while continuing to the next pot body water, until the water overflows the weir, weir valves closed, set the temperature and pressure in the central data processing system, to open the reactor body pressure pump, a pressurizing pump under the reactor body, the reactor body of the heater, the heater kettle body, the relief valve on the reactor body, the reactor body relief valve, so that the slurry in the reactor for pre conservation body, after curing is complete in the intermediate open lid was so good conservation of the slurry in the case of differential pressure continuously into the lower vessel body, while the kettle body there is an equal volume of slurry constantly flows from the collector tank, the slurry due to the discharge pressure continues to drop on the kettle body, while the body vessel pressurizing pump pressure continues to fill, if the slurry in the passage loss can some pressure on the 上部的压力将要有所回升直到达到设定压力为止;在封堵住过后,关掉连通阀,清洗上釜体,并对下釜体岩心中的浆体进行养护,在养护时间到一定时间后就对在上釜体加满压裂液对下釜体进行试压,考察不同时间段化学堵浆起结构后的承压能力的变化,如果浆体在裂缝不能承受住压力以至于和上釜体的压力平衡则上釜体加压泵将不断的打压,下釜体泄压泵在超过设定的地层承压能力后将上釜体进入的液体流出,直到上部堵浆漏完为止实验结束;从而筛选出符合要求的堵漏材料及体系。 An upper portion of the pressure to be picked up until it reaches the set pressure; after closure blocked, switch off the communication valve, the cleaning tank body, the tank body and mind slurry Iwashita conservation, the curing time at a predetermined time after to fill the fracturing fluid in the vessel body of the kettle pressure test, effects of different time periods plugging slurry from pressure changes in the ability of the structure, if the slurry can not withstand the pressure and the fracture so that the reactor body balancing the pressure on the autoclave pressurizing pump pressure will continue, under the kettle liquid effluent pump relief into the tank in the body after the formation pressure exceeds the set capacity, slurry drain plug until the upper end of the experiment have been exhausted; such screening to meet the requirements of lost circulation materials and systems.

Claims (5)

  1. 1.高温高压漏失地层模拟封堵测试装置,由气源(I)、油箱(4)、上釜体(9)、下釜体(17)、水源(28)、磁力驱动器(20)、变频电机(22)、中央处理系统(34)、数据显示系统(33)、集液罐(13)组成,其特征在于,所述上釜体(9)有上釜盖(10)、上釜体加热器(19),下釜体(17)有下釜盖(15)、下釜体加热器(16),上釜体和下釜体之间有中间釜盖(18)和连通阀(35);所述上釜体连接油箱(4)和气源(I)并设有溢油观察口(21),上釜体连有回油阀(6)和回油气源(32),所述上釜体既分别连接上釜体加压泵(31)、上釜体泄压泵(11),又分别连接上釜体压力传感器(24)和上釜体热电偶(25),所述上釜体压力传感器、上釜体热电偶与中央处理系统(34)相连;所述下釜体连接水源(28)并设有溢水观察口(8),所述下釜体既分别连接下釜体加压泵(30)、下釜体泄压泵(7),又分 1. The high temperature and pressure leakage formation analog occlusion test device, from the gas source (the I), the tank (4), the vessel (9), (17), water (28), magnetic drives the vessel body (20), inverter motor (22), a central processing system (34), data display system (33), collection tank (13), and is characterized in that, the upper vessel body (9) on the tank lid (10), the heated kettle (19), the vessel body (17) with a lower tank cover (15), the reactor body heater (16), there is between the upper vessel and the lower vessel body intermediate tank lid (18) and the communication valve (35); the upper connected to the tank reactor body (4) and gas source (I) and a spill viewing port (21), the reactor body is connected with a return valve (6) and return oil source (32), the said reactor body are both pressurizing pump connected to the tank body (31), the pump relief kettle body (11), in turn are connected to the reactor body pressure sensor (24) and the thermocouple on the reactor body (25), said upper vessel body pressure sensor, the kettle and the thermocouple central processing system (34) is connected; said lower vessel body connected to a water source (28) and a viewing port overflow (8), said lower vessel body are both connected to the kettle at pressurizing pump (30), the vessel relief body pump (7), divided 连接下釜体压力传感器(26)和下釜体热电偶(27),所述下釜体压力传感器、下釜体热电偶与中央处理系统(34)相连;所述上釜体内部有浆叶(41),浆叶转轴(37)通过磁力驱动器(20)被变频电机(22)带动旋转,该电机与中央处理系统(34)相连;所述下爸体内部有模拟岩心(42),所述模拟岩心有漏失通道(43),中间釜盖(18)通过螺纹和模拟岩心(42)连接;所述下釜体连接集液罐(13)和电子天平(14),电子天平与中央处理系统(34)相连;所述中央处理系统连接数据显示系统(33)。 Connecting the lower vessel body a pressure sensor (26) and a lower vessel body thermocouple (27), said lower vessel body pressure sensor, the reactor body thermocouple to the central processing system (34) is connected; said upper inner vessel body having blade (41), blade shaft (37) driven by a magnetic drive (20) is inverter motor (22) rotation, the motor is connected to the central processing system (34); said inner body lower dad analog core (42), the analog with a core leakage channel (43), an intermediate tank cover (18) by a threaded connection and the analog core (42); said lower vessel body connected to the liquid collecting tank (13) and an electronic balance (14), connected to an electronic balance and the central processing system (34) ; processing system connected to said central data system (33).
  2. 2.如权利要求I所述的模拟封堵测试装置,其特征在于,所述上釜体、下釜体分别连接上釜体爆破片(23 )、下釜体爆破片(29 )。 2. The occlusion simulation test apparatus according to claim I, wherein said upper vessel body, the reactor body are connected to the reactor body bursting disc (23), the reactor body bursting disc (29).
  3. 3.如权利要求I所述的模拟封堵测试装置,其特征在于,所述集液罐连有冷凝器(12)。 I 3. The analog of claim occlusion test device, characterized in that said collection tank is connected with a condenser (12).
  4. 4.如权利要求I所述的模拟封堵测试装置,其特征在于,上釜体和下釜体之间有中间釜盖(18),并通过旋转主轴(36)同轴旋转。 4. The analog of claim I occlusion of the test apparatus and (36) coaxially rotated by the rotary spindle, characterized in that the intermediate tank lid (18) between the upper vessel and the lower vessel body.
  5. 5.如权利要求I所述的模拟封堵测试装置,其特征在于,所述上釜体内部有浆叶(41),浆叶上依次有垫圈(40)、隔膜片(39)和压盖(38)以分隔浆体和上部的加压介质。 5. The occlusion simulation testing apparatus according to claim I, wherein said inner vessel body having upper blade (41), successively washer (40), diaphragm (39) and the gland paddle (38) to separate the upper part of the pressurized medium and the slurry.
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