Numerical simulation of sand washing with high pressure waterjet in horizontal well
水平井段高压水射流冲砂洗井数值模拟研究
In order to enhance continuous-running efficiency,a special centralizer was developed and eliminated the tie back sting,and one trip was needed for the performance of sand washing by slim pipe.
为提高作业时效,成功研发了一种新型套管丢手内专用冲砂扶正工具,其省略了回接管柱,直接在大套管内下入小油管就可准确进入丢手内冲砂。
In view of the shortcoming of sand washing technology with recycled water, the negative-pressure sand fishing technology is put forward.
针对循环水冲砂工艺存在的不足,提出了负压捞砂工艺技术。
Foam fluid is widely used in sand-flushing operations in oilfields, while the prop-carrying capability of foam fluid is very important.
泡沫流体广泛应用于油井的冲砂洗井作业中,携砂能力是衡量其性能的一项重要指标。
Development and application of reversing continuous sand washing device inside the casing;
套管内换向连续冲砂装置的研制与应用
A continuous sand washing apparatus and sand control unit are used in operation, by which stack accidents can be effectively avoided, the pollution in sand washing operation is solved and sand washing efficiency is raised.
在施工过程中通过采用连续冲砂装置及冲砂液除砂装置,可有效地避免卡井事故的发生,解决了冲砂作业的污染问题,并提高了冲砂效率。
The disadvantage using coiled tubing for continuous sand washing in the multilateral horizontal wells is that the diameter of coiled tubing is small,borehole size is big,the return speed of sand washing liquid is low while washing sand,and it is not easy to sand out to the ground.
采用连续油管对分支水平井进行连续冲砂的缺点是连续油管直径小,井眼尺寸大,正冲砂时洗井液上返速度低,不易把砂子带出地面。
Two different HVOF spray systems were used to prepare six WC–10Co–4Cr coatings on 0Cr13Ni5Mo stainless steel using three commercial powders, and the slurry erosion behavior of coatings and the substrate was investigated on a self-manufactured slurry pot erosion tester.
以2种不同的HVOF喷涂系统和3种商用粉末在0Cr13Ni5Mo基材上喷涂6种WC–10Co–4Cr涂层,用自行研制的料浆罐冲蚀设备对涂层和基材的砂浆冲蚀行为进行了研究,分析了显微结构和显微硬度对涂层冲蚀性能的影响及涂层冲蚀后的表面形貌。
Research on Consecutive Sand Washing Technology for Vomit Wells of Daqing Oilfield;
大庆油田吐砂井连续冲砂工艺技术研究
Model test for dam bottom flushing outlet of DAPEIN(Ⅰ) Hydropower project
DAPEIN(Ⅰ)水电工程大坝冲砂底孔体型试验
Numerical Simulation and Application of Foam Fluid on Sand-flushing;
泡沫流体冲砂洗井数值模拟研究及应用
Study and Application on High Pressure Jet Broken-down Technology Using Foam Fluid;
乳化泡沫高压喷射冲砂解堵理论研究及应用
sluice ore,ie to separate it from gravel,etc
冲洗矿砂（使之与砂砾等分开）
lash type inertia vibrating shakeout
冲击式惯性振动落砂机
blast joint hole
地层砂冲蚀在耐冲蚀管上形成的孔
THE MINERALIZATION LAWS OF THE ALLUVIAL GOLD PLACERS AT ALTAI MOUNTAIN
阿尔泰山冲积型砂金矿的砂金富集规律
Research on Compacting Process, Compacting Mechanism and Compacting Effects of Air Impact Molding Machine with Formed Squeeze Head;
气冲气推成形触头造型机实砂过程、实砂理论及实砂效果的探讨
The mud is swept away and the residual sand content remains to form a beach.
泥质被冲刷掉，剩下的砂形成海滩。
Scouring Phenomenon of the Channel Bed Below a Sabo-dam
防砂坝下游河床局部冲刷现象之研究
Construction supervision of the vibroflotation method of filling gravel under water
谈砂卵石水下填筑中振冲施工的监理
Causes and Solutions of Sand Hole in Steel Casting with Air Impact Molding
气冲造型铸钢件砂眼成因与解决措施
Experimental study on fluid of trenchless drilling through fluidized bed
非开挖穿越流砂层冲洗液的试验研究
RELATIONSHIP OF WATER AND SAND ERUPTION TO ALLU-VIAL SAND BODY IN TANGSHAN EARTHQUAKE AREA
唐山地震区的喷水冒砂及其与冲积砂体的分布关系
A glacial or alluvial deposit of sand or gravel containing eroded particles of valuable minerals.
砂矿，砂积矿床一种砂砾或碎石的冰河沉积物或冲积沉积物，包括有价值的矿物成份
artificial water-channel,esp where gold-miners rinse gold out of sand and dirt
人工水道;（尤指金矿工人用以冲洗金砂的）
To wash gravel, sand, or other sediment in a pan.
淘金在淘金盆中冲洗矿砂、沙子或其他沉积物