Research On The Method For Piston Life Estimate Of The Drilling Mud Pump

The drilling mud pump is the indispensable main equipment in production of well drilling. The quality of the piston of a drilling mud pump has a strong influence on drilling speed, quality and cost. With the development of drilling techniques, its impact on them will become stronger and stronger. Therefore, how about be steady with raising the service lives of piston, how about be reliable method appraise piston quality and life-span science, Have important realistic meanings to mud pump experimental study, producing to make the use and management of the on-the-spot equipment of well drilling with the oil field. The main contents of the thesis are as f o11ows:1. Synthesize domestic and international relevant document materials, observe to the research method of service life of piston of the mud pump and current situation ; Combine the oil field and require actually , have put forward the main research content of this text.2. Through investigating and count actually , describe the influence factor to the well drilling scene of the Daqing oil field, Have analysed and research the forming process and mechanism in the form that several kinds of pistons lost efficiency.3. The data of service life of,piston that gathered according to the well drilling scene, the research approach to put forward life-span of the piston, Adopt number pay attention to statistical method distribute law act as and study to oil field commonly used three a kind of mud pump the life-spans of pistons, Distribute models after establishing the life-span, calculate and analyse about the dependability index.4. Through whether three kind the pistons of the form carry on examine and compare plan at multinomial against test datas for variance and, Have analysed the relation between the life-span of the piston and every influence factor.5. Through analysing and research, summarize and publish the service lives of piston obey each 2 parameter Weibull distribute, To lose efficiency type belong to person who consume, Daqing long result synthesize dependability occupy the excellent conclusion by index by type piston..Have-proposed that the geometry "form ofthepiston and life-span influence on the piston of the size are great, Must be from improving designing, improve competence of making and improve airtight and rub the dependability of improving the piston of the respect, such as condition, etc. This thesis is only the discussion of some try nature, but studies and offers certain theory to consult for the dependability of the life-span of piston of mud pump of the well drilling.