The Experimental Stduy And Application On Suspend Sluge Filteration Of Produced Water

CONSIDERABLE OILY SEWAGE IS PRODUCED DURING OIL&GAS EXPLOITATION AND DEVELOPMENT PHASE, SUCH AS PRODUCED WATER IN MULTIPURPOSE STATION, BACKWATER FROM FLUSHING FLUID, AND DISCHARGE WATER OUT OF WELL-DRILLING SO ON. IN THE MEAN WHILE, SUBSTANTIAL WATER IS PRODUCED FROM OIL WELLS AT LATER STAGE OF OILFIELD DEVELOPMENT, THEREFORE, FORMATION PRESSURE DEPLETES. IN VIEW OF PRESSURE-UP KEEPING, PLENTY OFWATER WILL BE INJECTED INTO WELLBORE. WATER PRODUCED OUT OF OIL&GAS WELLS IS DISPOSEDAND THEN IS REINJECTED INTO PRODUCTION WELLS. ON THE ONE HAND, FORMATION PRESSURE WILL BE UPKEPT, PRODUCTION RATES IS MAINTAINED. THE OTHER HAND, THE QUALITY OF SEWAGE DISCHARGE WILL DECLINE. THERE EXISTS THE BALANCE BETWEEN PRODUCTIONS AND INJECTIONS. ITIS OF VITAL INDUSTRIAL AND ENVIRONMENTAL CONSEQUENCE. AS FOR THE OILFIELD PRODUCED WATER DISPOSAL AND REINJECTION INTO OIL WELLS, IT IS NOT ONLY OF VITALLY SOCIAL CONSEQUENCE, BUT ALSO OF GIGANTICALLY ECONOMIC CONSEQUENCE.THE SOURCE, DANGEROUS EFFECTS AND SORT OF THE OILFIELD PRODUCED WATER ARESUMMARIZED IN THIS PAPER. VARIOUS TRADITIONAL APPROACHES TO TREAT OILFIELD PRODUCE WATER ARE DISCUSSED IN DETAIL. ON THE BASE OF THIS, A NEW METHOD THAT OF SUSPEND SLUGE FILTERATIN COMPREHENSIVE PROCESSING EQUIPMENT HAS BEEN BROUGHT FORWARD.IN THIS THESIS, THE TREATMENT PROCESS USED IN THE INTEGRATIVE APPARATUS FOR WATER PURIFICATION IS EXPLAINED. AND THE DESIGN PARAMETERS FOR IT ARE ALSO ANALYZED IN THISTHESIS. THE TREATMENT OF COMMON RAW WATER USING THE APPARATUS IS STUDIED THROUGHEXPERIMENT. THE CONTENTS OF THE EXPERIMENT INCLUDE THE TREATMENT EFFECT OF RAW WATER IN DESIGN INFLOW AND THE COMPARISON OF THE TREATMENT EFFECTS IN DIFFERENT INFLOWS.The application of SSF in XINYI produced water station has proved to be successful. The results show that the oil content reduces from 38~216 mg/l to 4.8mg/l, and the suspend solid content reduces from 20~157 mg/l to 2.73 mg/l, the mid-diameter value is down up to 2 micro-meters. All these results alredy met the standard of reinjection water. And this can provide some guidance for solving the problems of produced water treatment to meet the rejection water standard and get more social and economical benefit from it.