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申请号:201911072750.9 公开号:CN111154466A 主分类号:C09K8/467
摘要:【中文】本发明提供一种可实现油基钻屑灰资源化利用的固井水泥浆体系,包括如下组分及其质量份数:油井水泥100份,淡水50‑55份,油基钻屑灰10‑40份,激活剂1‑3份,界面润湿剂1‑2份,降失水剂1‑2份,膨胀剂1‑1.5份,缓凝剂0.2‑1.0份,消泡剂0.1‑0.3份;所述激活剂为弱碱无机盐与硫酸铝盐的复配溶液;所述界面润湿剂为HLB值在13‑15之间的非离子表面活性剂的复配溶液。本发明可将油基钻屑环保处理残留的油基钻屑灰有效转化为固井水泥浆体系的外掺料,实现油基钻屑灰的资源化利用,使油基钻屑灰不再占用土地和污染环境,保障页岩气勘探开发的绿色可持续发展。 【EN】The invention provides a well cementation cement slurry system capable of realizing resource utilization of oil-based drilling cutting ash, which comprises the following components in parts by weight: 100 parts of oil well cement, 50-55 parts of fresh water, 10-40 parts of oil-based drilling cutting ash, 1-3 parts of an activator, 1-2 parts of an interfacial wetting agent, 1-2 parts of a fluid loss agent, 1-1.5 parts of an expanding agent, 0.2-1.0 part of a retarder and 0.1-0.3 part of a defoaming agent; the activator is a compound solution of weak base inorganic salt and aluminum sulfate salt; the interfacial wetting agent is a compound solution of a nonionic surfactant with the HLB value of 13-15. The method can effectively convert the oil-based drilling cutting ash remained in the environment-friendly treatment of the oil-based drilling cutting into the admixture of the well cementation cement slurry system, realizes the resource utilization of the oil-based drilling cutting ash, ensures that the oil-based drilling cutting ash does not occupy the land and pollute the environment, and ensures the green sustainable development of shale gas exploration and development.
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申请号:201911111549.7 公开号:CN111119740A 主分类号:E21B7/24
摘要:【中文】本发明涉及钻井设备技术领域,具体指一种水力振荡器感应组件;包括中空的固定器,以及水力振荡器的定子和螺杆转子,所述固定器的下端穿设于定子的上端口内,固定器下端的内壁上设有与螺杆转子上端部相对的感应器,螺杆转子的上端设有至少一个的感应标记;本发明结构简单,改装、维护、试验和运输非常方便,便于在现有水力振荡器上进行改进和推广,实现了螺杆转子运动时间、运动频率的准确记录,使水力振荡器的使用寿命和效果得到准确的评估。 【EN】The invention relates to the technical field of drilling equipment, in particular to a hydraulic oscillator induction assembly; the hydraulic vibrator comprises a hollow fixer, a stator of a hydraulic oscillator and a screw rotor, wherein the lower end of the fixer is arranged in an upper port of the stator in a penetrating manner, an inductor opposite to the upper end of the screw rotor is arranged on the inner wall of the lower end of the fixer, and at least one induction mark is arranged at the upper end of the screw rotor; the invention has simple structure, is very convenient to modify, maintain, test and transport, is convenient to improve and popularize on the existing hydraulic oscillator, realizes the accurate record of the movement time and the movement frequency of the screw rotor, and ensures that the service life and the effect of the hydraulic oscillator are accurately evaluated.
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申请号:201911111571.1 公开号:CN111057527A 主分类号:C09K8/32
摘要:【中文】本发明涉及高密度油基钻井液领域,更具体涉及一种适用于高压页岩气地层的高密度油基钻井液及其制备方法。本发明所述高密度油基钻井液包括以下重量份的原料:基油80‑90份、主乳化剂2‑4份、辅乳化剂0.5‑3份、有机膨润土1‑2份、碱度调节剂2‑3份、降滤失剂3‑5份、质量分数为25‑35%的氯化钙水溶液10‑20份以及加重剂,所述主乳化剂由高级脂肪酸脂二乙烯三胺、顺丁烯聚酰胺、聚氧乙烯醚组成,所述辅乳化剂为十二烷基苯磺酸钠。本发明所述以柴油或白油为连续相的油基钻井体系均具有良好的乳化作用,破乳电压高,高温高压失水小,抑制性强,高固相含量的情况下流动性良好。 【EN】The invention relates to the field of high-density oil-based drilling fluid, and in particular relates to high-density oil-based drilling fluid suitable for a high-pressure shale gas formation and a preparation method thereof. The high-density oil-based drilling fluid comprises the following raw materials in parts by weight: 80-90 parts of base oil, 2-4 parts of a main emulsifier, 0.5-3 parts of an auxiliary emulsifier, 1-2 parts of organic bentonite, 2-3 parts of an alkalinity regulator, 3-5 parts of a filtrate reducer, 10-20 parts of a 25-35% calcium chloride aqueous solution by mass fraction and a weighting agent, wherein the main emulsifier is composed of high fatty acid ester diethylenetriamine, maleic polyamide and polyoxyethylene ether, and the auxiliary emulsifier is sodium dodecyl benzene sulfonate. The oil-based drilling system taking diesel oil or white oil as a continuous phase has good emulsification effect, high demulsification voltage, small high-temperature high-pressure water loss, strong inhibition and good fluidity under the condition of high solid content.
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申请号:202010028785.9 公开号:CN111271025A 主分类号:E21B43/00
摘要:【中文】本发明公开了一种气井用自动排水采气装置,包括地层流体过滤管、旁通阀、自动排水采气机构、反循环阀、采气排液端;所述旁通阀设有混合液出口;所述自动排水采气机构包括地层流体通道、环空积液入口和环空积液出口;所述地层流体过滤管通过旁通阀连通所述地层流体通道;所述地层流体过滤管与所述旁通阀之间还设有封隔装置;所述自动排水采气机构位于旁通阀与反循环阀之间;所述环空积液入口设于环空积液的液面之下;所述环空积液出口通过所述反循环阀连通所述采气排液端。该装置不需施加外部动力即可实现气井自动排水采气。 【EN】The invention discloses an automatic water drainage and gas production device for a gas well, which comprises a formation fluid filter pipe, a bypass valve, an automatic water drainage and gas production mechanism, a reverse circulation valve and a gas production and liquid discharge end, wherein the formation fluid filter pipe is connected with the bypass valve; the bypass valve is provided with a mixed liquid outlet; the automatic water drainage and gas production mechanism comprises a formation fluid channel, an annular effusion inlet and an annular effusion outlet; the formation fluid filter pipe is communicated with the formation fluid channel through a bypass valve; a packing device is also arranged between the formation fluid filter pipe and the bypass valve; the automatic water drainage and gas recovery mechanism is positioned between the bypass valve and the reverse circulation valve; the annular effusion inlet is arranged below the liquid level of the annular effusion; the annular effusion outlet is communicated with the gas production and liquid drainage end through the reverse circulation valve. The device can realize automatic drainage and gas production of the gas well without applying external power.
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申请号:201911415791.3 公开号:CN111021974A 主分类号:E21B23/00
摘要:【中文】本发明涉及一种能防高压冲击的牵引器驱动臂,支撑臂由长、短两个组成,长支撑臂固定在驱动臂本体上,短支撑臂固定在平衡活塞上,长、短支撑臂连接处用固定销和牵引轮固定在一起;与平衡活塞相连的活塞杆外套压缩弹簧,液压仓仓盖与平衡活塞间有密封圈;液压仓仓盖外有防缩帽,防缩帽丝扣与平衡活塞连接,并用固定螺钉固定。本发明在液压仓仓盖外安防缩帽,当射孔枪爆炸后,井筒内液体压力迅速增加时,可以有效防止平衡活塞在射孔作业高压冲击下,向液压仓方向移动;可以防止防缩帽退扣,有效阻隔井筒液体进入液压仓内,而造成液压仓液压油绝缘下降,影响牵引器电气工作。本发明结构简单、防高压冲击效果好,能提高牵引器射孔成功率。 【EN】The invention relates to a tractor driving arm capable of preventing high-pressure impact, wherein a supporting arm consists of a long supporting arm and a short supporting arm, the long supporting arm is fixed on a driving arm body, the short supporting arm is fixed on a balance piston, and the joint of the long supporting arm and the short supporting arm is fixed together by a fixing pin and a traction wheel; a compression spring is sleeved outside a piston rod connected with the balance piston, and a sealing ring is arranged between the hydraulic bin cover and the balance piston; the outside of the hydraulic bin cover is provided with an anti-shrinkage cap, and the screw thread of the anti-shrinkage cap is connected with the balance piston and is fixed by a fixing screw. According to the invention, the safety protection shrinkage cap is arranged outside the hydraulic bin cover, when the liquid pressure in the shaft is rapidly increased after the perforating gun explodes, the balance piston can be effectively prevented from moving towards the hydraulic bin under the high-pressure impact of perforating operation; can prevent the shrink-proof cap from being buckled, effectively prevent the liquid in the shaft from entering the hydraulic chamber, and cause the insulation reduction of the hydraulic oil in the hydraulic chamber to influence the electrical work of the tractor. The invention has simple structure and good high-pressure impact prevention effect, and can improve the perforation success rate of the tractor.
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申请号:201911120730.4 公开号:CN111019616A 主分类号:C09K8/467
摘要:【中文】本发明涉及一种固井作业用低密度水泥浆和固井作业用水泥组合物,属于油井钻井工程技术领域。本发明的固井作业用低密度水泥浆,包括水和以下重量份数的组分:油井水泥70~100份、超细水泥0~30份、减轻材料35~80份、微硅15~20份;所述减轻材料包括漂珠、玻璃微珠中的至少一种。该水泥浆的各组分材料性能好、添加比例适中,通过各组分材料制得的水泥浆密度可达到1.15~1.25g/cm3,且水泥浆的稳定性高、流动性好、强度高,进而可降低固井漏失风险,提高固井质量及顶替效率。 【EN】The invention relates to low-density cement slurry for well cementation operation and a cement composition for the well cementation operation, belonging to the technical field of oil well drilling engineering. The low-density cement slurry for well cementation comprises water and the following components in parts by weight: 70-100 parts of oil well cement, 0-30 parts of superfine cement, 35-80 parts of lightening material and 15-20 parts of micro-silicon; the lightening material comprises at least one of floating beads and glass beads. The cement paste has the advantages that the performance of each component material is good, the addition proportion is moderate, and the density of the cement paste prepared from each component material can reach 1.15-1.25g/cm3And the cement slurry has high stability, good fluidity and high strength, so that the risk of well cementation loss can be reduced, and the well cementation quality and the replacement efficiency are improved.
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申请号:201911120776.6 公开号:CN110995024A 主分类号:H02M7/217
摘要:【中文】本发明涉及一种直流电弧等离子体电源及系统,该电源及系统包括依次连接的输入整流模块、逆变模块、高频变压模块、输出整流模块和电源输出端,还包括电压补偿模块,该电压补偿模块的补偿电压输出端与输出整流模块的直流端串联设置,所述电压补偿模块的补偿电压输出端与所述输出整流模块的直流端串联设置后的电压输出端连接所述电源输出端,当所述输出整流模块的直流端输出直流起弧电压的同时,电压补偿模块输出与所述直流起弧电压方向相同的补偿电压。本发明中的电压补偿模块能够增加起弧时所需的高电压,保证了电弧放电的可靠完成。 【EN】The invention relates to a direct current arc plasma power supply and a system, wherein the power supply and the system comprise an input rectifying module, an inversion module, a high-frequency transformation module, an output rectifying module, a power output end and a voltage compensation module which are sequentially connected, a compensation voltage output end of the voltage compensation module is connected with a direct current end of the output rectifying module in series, a voltage output end of the voltage compensation module after the compensation voltage output end of the voltage compensation module is connected with the direct current end of the output rectifying module in series is connected with the power output end, and when the direct current end of the output rectifying module outputs direct current arcing voltage, the voltage compensation module outputs compensation voltage in the same direction as the direct current arcing voltage. The voltage compensation module can increase the high voltage required during arcing, and ensures reliable completion of arc discharge.
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申请号:201911120911.7 公开号:CN110982498A 主分类号:C09K8/42
摘要:【中文】本发明涉及一种用于钻井裂缝性漏失的堵漏剂及堵漏液。该堵漏剂主要由以下重量份的组分组成:水渣100份,减轻剂10~20份,微硅粉10~15份,激活剂7~10份,降失水剂1.5~3份,增强剂2~4份,缓凝剂1~2份,提粘剂0.5~2份,纤维3~6份。本发明所得堵漏剂针对钻井裂缝性漏失具有以下优点:配方简单可调,大大提高了水渣的使用量,减少了固体废弃物对环境的污染,相比水泥浆堵漏得到的强度适中,扫塞效率高,且与钾铵基钻井液、硅酸盐钻井液均有较好的相容性,对钻井液性能改变小,有效解决水泥浆堵漏后污染钻井液的问题。 【EN】The invention relates to a plugging agent and a plugging liquid for drilling fracture loss. The plugging agent mainly comprises the following components in parts by weight: 100 parts of water granulated slag, 10-20 parts of a lightening admixture, 10-15 parts of micro silicon powder, 7-10 parts of an activator, 1.5-3 parts of a fluid loss agent, 2-4 parts of a reinforcing agent, 1-2 parts of a retarder, 0.5-2 parts of a viscosity enhancer and 3-6 parts of fibers. The plugging agent obtained by the invention has the following advantages aiming at the fractured loss of the drilling well: the formula is simple and adjustable, the using amount of the granulating slag is greatly improved, the pollution of solid wastes to the environment is reduced, compared with cement paste plugging, the obtained strength is moderate, the plug sweeping efficiency is high, the drilling fluid plugging agent has good compatibility with potassium ammonium base drilling fluid and silicate drilling fluid, the drilling fluid performance is slightly changed, and the problem that the drilling fluid is polluted after the cement paste plugging is effectively solved.
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申请号:201911215164.5 公开号:CN111100614A 主分类号:C09K8/36
摘要:【中文】本发明提供一种适合于页岩气老区加密井的随钻封堵防漏油基钻井液,包括如下组分及其体积份数:油相与水相100份、主乳化剂2.4~3.2份、辅乳化剂0.6~1.0份、石灰1~3份、有机土1~3份、降滤失剂1~5份、封堵剂1~3份、10目的刚性粒子1~2份、80目的刚性粒子1.5~3份、100目的刚性粒子2~4份、80目的柔性变形粒子1.5~2.5份、100目的柔性变形粒子1.5~2.5份、加重剂0~100份。本发明产品具有良好的抗温稳定性、封堵性、防漏性,能适应不同压力层位钻井,具有一定的压裂液抗侵污能力,能够适应于页岩气老区加密井钻进施工。 【EN】The invention provides a plugging-while-drilling leakproof oil-based drilling fluid suitable for an encrypted well in a shale gas old area, which comprises the following components in parts by volume: 100 parts of oil phase and water phase, 2.4-3.2 parts of main emulsifier, 0.6-1.0 part of auxiliary emulsifier, 1-3 parts of lime, 1-3 parts of organic soil, 1-5 parts of filtrate reducer, 1-3 parts of plugging agent, 1-2 parts of 10-mesh rigid particles, 1.5-3 parts of 80-mesh rigid particles, 2-4 parts of 100-mesh rigid particles, 1.5-2.5 parts of 80-mesh flexible deformable particles, 1.5-2.5 parts of 100-mesh flexible deformable particles and 0-100 parts of weighting agent. The product of the invention has good temperature resistance stability, plugging property and leak resistance, can adapt to drilling at different pressure layers, has certain anti-contamination capability of the fracturing fluid, and can be suitable for drilling construction of the shale gas old area encrypted well.
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申请号:202010028777.4 公开号:CN111255426A 主分类号:E21B43/26
摘要:【中文】本发明公开了一种页岩气压裂高压管汇旋塞阀的远程控制装置,包括液压站、控制系统、动力分配装置、执行机构以及至少一个高低压管汇撬,所述动力分配装置通过液压管路连接所述液控执行器,所述传感器用于检测所述旋塞阀的阀门状态、并将检测结果传输至所述操作显示屏和控制系统,所述控制系统根据检测结果通过所述液控执行器控制所述旋塞阀的开启与关闭,其可以实现高低压管汇撬不同旋塞阀的集中控制,安全可靠,维护方便,能够有效降低风险隐患源,可直接应用于现场作业施工。 【EN】The invention discloses a remote control device of a shale gas fracturing high-pressure manifold plug valve, which comprises a hydraulic station, a control system, a power distribution device, an execution mechanism and at least one high-low pressure manifold pry, wherein the power distribution device is connected with a hydraulic control actuator through a hydraulic pipeline, a sensor is used for detecting the valve state of the plug valve and transmitting a detection result to an operation display screen and the control system, and the control system controls the opening and closing of the plug valve through the hydraulic control actuator according to the detection result.
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