本文選題：沖擊器　切入點(diǎn)：旋沖鉆井　出處：《石油鉆采工藝》2017年02期 　論文類型：期刊論文

【摘要】：基于推力軸承滾動(dòng)體在特制起伏軌道上滾動(dòng)產(chǎn)生軸向振動(dòng)的特性,研制了一種軸向振動(dòng)沖擊裝置,通過與螺桿馬達(dá)集成使用,具有旋沖鉆井和螺桿+轉(zhuǎn)盤雙驅(qū)復(fù)合鉆井的技術(shù)優(yōu)點(diǎn)。裝置的推力軸承結(jié)構(gòu)由滾輪、滾輪支架和滾輪軌道組成,該結(jié)構(gòu)分整個(gè)鉆柱為軸向振動(dòng)沖擊部分和受沖擊部分;滾輪軌道上端面均布凸輪齒(齒高9~17 mm),滾輪沿凸輪齒上升面滾動(dòng)時(shí),抬升鉆柱振動(dòng)沖擊部分蓄能;滾輪沿凸輪齒下降時(shí),振動(dòng)沖擊部分鉆柱在鉆壓和自重作用下,由螺桿輸出軸與沖擊傳動(dòng)軸在接觸面上產(chǎn)生沖擊,兩軸端面間距為沖程(比凸輪齒高度小4 mm)。以3 000 m中深井應(yīng)用為基本條件,采用彈性桿模擬鉆柱的方法,分析了裝置沖擊功和蓄能扭矩與鉆壓及沖程的關(guān)系,給出了沖程和鉆壓的取值范圍,據(jù)此試制的樣機(jī),在沖擊性能測試中,沖擊力峰值達(dá)到鉆壓的2.2倍,在鉆壓20 k N,泵排量30 L/s條件下,裝置壽命達(dá)到80 h。軸向沖擊裝置的研制達(dá)到了設(shè)計(jì)要求,初步具備工程應(yīng)用的條件。
[Abstract]:Based on the characteristic of axial vibration caused by rolling of thrust bearing rolling on special rolling track, an axial vibration shock device is developed, which is integrated with screw motor. The thrust bearing structure of the device consists of roller roller, roller support and roller track. The structure is divided into two parts: axial vibration impact part and impact part. The end face of the roller track is uniformly distributed with cam teeth (tooth height of 9 ~ 17 mm), when the roller is rolling along the rising surface of the cam teeth, the vibration impact of the lifting drill string is partially stored; while the roller is descending along the cam tooth, the vibration impact part of the drill string is under the action of drilling pressure and self-weight. The contact surface is impacted by the screw output shaft and the impact drive shaft. The distance between the two axes is stroke (4 mm less than the height of the cam tooth). Taking the application of 3 000 m deep well as the basic condition, the method of simulating the drill string with elastic pipe is adopted. The relationship between impact power and energy storage torque, drilling pressure and stroke is analyzed, and the range of stroke and drilling weight is given. According to this, the peak value of impact force is 2.2 times that of drilling pressure in the test of impact performance. Under the conditions of drilling pressure of 20kN and pump displacement of 30L / s, the life of the device reaches 80 h. The development of the axial impact device meets the design requirements and has the preliminary conditions for engineering application.
【作者單位】： 中石化勝利石油工程有限公司鉆井工藝研究院;中石油華北油田公司;
【基金】：國家科技重大專項(xiàng)“準(zhǔn)噶爾盆地碎屑巖層系油氣富集規(guī)律與勘探評價(jià)”(編號(hào):2016ZX05002-002)
【分類號(hào)】：TE921.2
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本文編號(hào)：1636364