本文選題：油管測量 + 光柵��； 參考：《沈陽工業(yè)大學(xué)》2015年碩士論文

【摘要】：在油田工作中,大部分的油層從勘探到開發(fā)及后期的維護過程中會受到很大程度的損害。壓井會造成產(chǎn)層污染甚至堵塞,使油井產(chǎn)量下降。放噴使局部地層壓力降低,影響油層出油能力,損壞地層結(jié)構(gòu),對油氣資源可持續(xù)的發(fā)展有一定害處。不壓井作業(yè)工藝能夠很好的解決這些難題。帶壓作業(yè)中,環(huán)形防噴器是實現(xiàn)隔離井內(nèi)高溫高壓的關(guān)鍵部件,在提升或下放管柱時,環(huán)形防噴器膠芯處于閉合狀態(tài),若有管箍通過時,環(huán)形防噴器的膠芯處于張開狀態(tài),否則,就會損壞其膠芯,造成很大的損失。若一個環(huán)形防噴器膠芯張開,另一個環(huán)形防噴器的膠芯一定處于閉合狀態(tài),在提升或下入管柱時,總會有一個環(huán)形防噴器閉合,這樣就完成了帶壓作業(yè)。因此,精確測量管箍的具體位置,確定環(huán)形防噴器的膠芯的開閉時刻,在帶壓修井機中十分重要。 本文利用光柵測量單根油管的長度,應(yīng)用單片機控制光柵有效計數(shù),得到準確的單根油管長度,來確定油管管箍的位置,為修井作業(yè)時,環(huán)形防噴器的開閉、液壓大鉗相對管箍的位置提供理論依據(jù)。在油田生產(chǎn)中,井下油管的總長度也一直受到修井作業(yè)的工作人員的長期關(guān)注,明確單根油管和總體油管的長度在修井作業(yè)中是個十分重要的問題。本文既可以明確油管管箍的位置也可以明確油管的總長度。這種測量油管長度的方法具有計量精度高,減輕勞動強度,提高生產(chǎn)效率和經(jīng)濟效益等優(yōu)點。 論文通過對油田作業(yè)修井所需,設(shè)計了一種基于光柵檢測連續(xù)油管長度在線測量系統(tǒng)。該系統(tǒng)通過一對光柵副測量油管的長度,為整個測量系統(tǒng)設(shè)計了硬件電路并開發(fā)了軟件程序。通過測量能精確的得到單根油管的長度。利用單片機按順序存儲單根油管長度可精確定位油管管箍的位置。
[Abstract]:In oil field work, most reservoirs will be damaged in the process of exploration, development and later maintenance. Well-killing may cause formation pollution or even blockage, resulting in a decline in oil production. Local formation pressure is reduced by releasing injection, which affects oil production ability, damages formation structure, and is harmful to the sustainable development of oil and gas resources. The non-well-working process can solve these problems well. In pressure operation, ring blowout preventer is the key component to realize high temperature and high pressure in isolation well. When lifting or lowering pipe string, the rubber core of ring blowout preventer is in closed state. If pipe hoop passes, the rubber core of ring blowout preventer is open. Otherwise, it will damage its rubber core, causing great losses. If the rubber core of one ring blowout preventer is open, the rubber core of the other ring blowout preventer must be closed. When lifting or entering the pipe string, there will always be an annular blowout preventer closed, thus completing the operation with pressure. Therefore, it is very important to accurately measure the concrete position of the pipe hoop and determine the opening and closing time of the rubber core of the ring blowout preventer in the workover machine with pressure. In this paper, the length of single tubing is measured by grating, the effective counting of single tubing is controlled by single chip microcomputer, and the exact length of tubing is obtained. The position of tubing hoop is determined, which is the opening and closing of annular blowout preventer during workover operation. The position of hydraulic forceps relative to pipe hoops provides theoretical basis. In the production of oil field, the total length of downhole tubing has been concerned by workover workers for a long time. It is very important to define the length of single tubing and total tubing in workover operation. Both the position of tubing hoop and the total length of tubing can be determined in this paper. The method of measuring tubing length has the advantages of high measuring precision, reducing labor intensity, improving production efficiency and economic benefit. In this paper, an on-line measuring system for the length of continuous tubing based on grating is designed. In this system, the length of tubing is measured by a pair of grating pairs, the hardware circuit is designed and the software program is developed for the whole measuring system. The length of a single tubing can be accurately obtained by measuring. The position of tubing hoop can be accurately located by single tubing length stored sequentially by single chip computer.
【學(xué)位授予單位】：沈陽工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TE973.6

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本文編號：1930671