【摘要】：喇嘛甸油田已經(jīng)進(jìn)入開發(fā)后期,面臨原油采出程度高、含水高和產(chǎn)量持續(xù)遞減等問題,導(dǎo)致運(yùn)行成本逐年升高。針對油田面臨的生產(chǎn)現(xiàn)狀,有必要對油田的集輸系統(tǒng)進(jìn)行能耗分布規(guī)律的研究,找出系統(tǒng)效率低、能耗高的主要原因,從而提出合理的改造措施,達(dá)到節(jié)能降耗的目的。針對喇嘛甸油田集輸系統(tǒng)的實(shí)際情況,開展了以下幾個(gè)方面的研究工作:(1)分析集輸系統(tǒng)的結(jié)構(gòu)和工藝特點(diǎn),將系統(tǒng)分解為轉(zhuǎn)油站、計(jì)量間、集輸管線3個(gè)環(huán)節(jié),根據(jù)能量平衡原理建立了各集輸環(huán)節(jié)能量平衡模型,并給出了相應(yīng)的能耗評價(jià)指標(biāo)。(2)根據(jù)雙管摻水集輸流程,以集輸系統(tǒng)總能耗費(fèi)用最小為目標(biāo)函數(shù),以摻水量、摻水溫度等運(yùn)行參數(shù)為決策變量,建立了雙管摻水集輸工藝流程的生產(chǎn)運(yùn)行優(yōu)化數(shù)學(xué)模型。針對數(shù)學(xué)模型的特點(diǎn),采用具有全局收斂性的遺傳算法進(jìn)行求解。(3)基于C++builder程序設(shè)計(jì)平臺,開發(fā)了集輸系統(tǒng)能耗分析及生產(chǎn)運(yùn)行參數(shù)優(yōu)化軟件。該軟件既能夠?qū)D(zhuǎn)油站集輸系統(tǒng)進(jìn)行能耗分析,確定能耗分布規(guī)律,找出集輸系統(tǒng)能耗薄弱環(huán)節(jié);也可以進(jìn)行集輸系統(tǒng)生產(chǎn)運(yùn)行參數(shù)優(yōu)化,有效降低生產(chǎn)運(yùn)行成本。(4)分別對喇嘛甸油田喇501轉(zhuǎn)油站和喇641轉(zhuǎn)油站集輸系統(tǒng)進(jìn)行了能耗分析和生產(chǎn)運(yùn)行優(yōu)化。與優(yōu)化前相比,喇501轉(zhuǎn)油站摻水溫度下降10℃,總摻水量上升130m~3/d,轉(zhuǎn)油站日耗電量上升192kW·h,日耗氣量下降2262m~3,日運(yùn)行費(fèi)用下降1153元,下降幅度達(dá)29%;喇641轉(zhuǎn)油站摻水溫度下降11℃,總摻水量上升165m~3/d,轉(zhuǎn)油站日耗電量上升255kW·h,日耗氣量下降1221m~3,日運(yùn)行費(fèi)用下降873元,下降幅度達(dá)32%。
[Abstract]:Lamadian Oilfield has entered the later stage of development, facing the problems of high degree of crude oil production, high water cut and continuous decline of production, which leads to the increase of operation cost year by year. In view of the present situation of oil field production, it is necessary to study the energy consumption distribution law of the gathering and transportation system in the oil field, find out the main reasons for the low efficiency and high energy consumption of the system, and put forward reasonable transformation measures to achieve the purpose of energy saving and consumption reduction. According to the actual situation of the gathering and transportation system in Lamadian Oilfield, the following research work has been carried out: (1) the structure and technological characteristics of the gathering and transportation system are analyzed, and the system is decomposed into three links: transfer station, metering room and gathering pipeline. According to the principle of energy balance, the energy balance model of each gathering and transportation link is established, and the corresponding energy consumption evaluation index is given. (2) according to the double pipe water gathering and transportation process, Taking the minimum total energy consumption cost of the gathering and transportation system as the objective function and the operation parameters such as mixing water quantity and mixing temperature as decision variables, the mathematical model of production operation optimization of double pipe water mixing and transportation process is established. According to the characteristics of the mathematical model, the genetic algorithm with global convergence is used to solve the problem. (3) based on the C builder programming platform, the software for energy consumption analysis and production operation parameter optimization of the gathering and transportation system is developed. The software can not only analyze the energy consumption of the gathering and transportation system of the transfer station, determine the law of energy consumption distribution, find out the weak link of the energy consumption of the gathering and transportation system, but also optimize the production operation parameters of the gathering and transportation system, and effectively reduce the production operation cost. (4) the energy consumption analysis and production operation optimization of the gathering and transportation system of the La 501 and La 641 transfer stations in Lamadian Oilfield are carried out respectively. Compared with before optimization, the mixing temperature of La 501 transfer station decreased by 10 鈩，

本文編號：2502982