Flushing fluid treatment equipment
A technology for processing equipment and well flushing fluid, which is used in flushing wellbore, wellbore/well components, earth-moving drilling, etc., can solve the problems of high cost, cumbersome operation, inability to realize online backflushing, etc., and achieves low manufacturing cost, The effect of reducing operating costs and simple structure
Inactive Publication Date: 2012-07-11
ZYT GASOLINEEUM EQUIP
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Problems solved by technology
The purification effect of the patented equipment is not bad, but the disclosed filtration technology uses walnut shells, fiber balls and cotton filter elements as filter materials, which cannot realize online backwashing and requires frequent disassembly of the filter to replace the filter material, which is cumbersome and expensive to operate.
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[0025] Such as figure 1 and figure 2 As shown, the well cleaning fluid treatment equipment provided by the present invention includes a decompression system 14 , a sand removal system 2 , an oil removal system 5 , a filtration system 8 and a backwash pipeline 38 connected sequentially through pipelines along the flow direction of the well cleaning fluid.
[0026] The decompression system 14 includes a pipeline filter 15 connected in series along the flow direction of the well flushing fluid, a primary flow-restricting orifice group 16, an automatic pressure regulating valve 17, a secondary flow-restricting orifice group 18, a pressure gauge 19, a flow meter 20 and safety valve 21.
[0027] The pressure of the flushing fluid from oil-water wells and water injection wells is generally not greater than 35MPa. After decompression by the decompression system 14, the pressure of the flushing fluid can be reduced to below 1MPa, reaching the cyclone desander and cyclone degreaser. ...
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Flushing fluid treatment equipment comprises a decompression system, a desanding system, an oil removal system, a filtering system and a back flushing pipeline which are successively communicated via a pipeline along a flowing direction of flushing fluid. The desanding system mainly comprises a cyclone desander, and a sand discharge opening of the cyclone desander is communicated with a sand storage device; the oil removal system mainly comprises a mixer and a cyclone oil remover which are communicated successively via a pipeline along the flowing direction of the flushing fluid, a blow-off opening of the cyclone oil remover is communicated with a sewage tank, an inlet branch of the mixer is connected with a chemical adding pump, and the chemical adding pump pumps chemicals so as to flocculate suspensions in the flushing fluid; and the filtering system comprises at least one filter, a filter element of each filter is a bidirectional wedge-shaped groove structure, and a filtering material of each filter element is stainless steel. As the filters are provided with the stainless steel filter elements which are the bidirectional wedge-shaped groove structures, the flushing fluid treatment equipment can realize online back flushing by multiple times, and a purification effect is good.
Description
technical field [0001] The invention relates to a device for treating oil-water wells and water-injection wells in oilfields to discharge well-washing fluid. Background technique [0002] At present, the well-flushing fluid returned from oil-water wells and water-injection wells in the oil field is mainly processed by the well-fluid treatment equipment, and then pumped into the oil-water wells and water injection wells for circulating well-flushing operations. The purification treatment of the returned flushing fluid is mainly to remove sand, oil, suspended solids and rust impurities. The existing flushing fluid treatment equipment in the market mainly includes the following types: [0003] 1) The patent "well washing fluid treatment vehicle" (CN201554400U) applied by Tonghua Petrochemical Machinery Manufacturing Co., Ltd. discloses a decompression system, cyclone sand removal, air flotation settling tank, filter and three-cylinder plunger pump Integrated well washing flui...
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IPC IPC(8): E21B21/06
Inventor 梁德权戴相富王维忠张子胜祁广彬李念王兴朴程鹏鲁书成罗煜琼邬丹郭全立朱海朋
Owner ZYT GASOLINEEUM EQUIP