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    开题报告论文 关于有杆抽油井工程诊断方法程序开题报告论文范文参考资料

    关于开题报告函授毕业论文范文 有杆抽油井工程诊断方法程序开题报告类本科开题报告范文学年毕业论文。

    iberglass sucker rod string Using API 11L spe 18188,1988.

    [18] Gibbs, S.G. and Neely, A.B. "Computer Diagnosis of Downhole Conditions in Sucker Rod Pumping Wells", J. Pet. Tech., Jan. 1966.

    [19] S.G.Gibbs,Design and diagnosis of deviated rod-pumped well,SPE22787.1991.

    附录1 诊断模型求解程序代码

    Private Sub zhenduan_click()

    Dim K As Integer

    Dim I As Integer, ii As Integer

    Dim J As Integer

    Dim sumrodl As Single

    Dim kk As Integer

    Dim jj As Integer

    Dim yita(0 To 100) As Single

    For I = 1 To oilrod.JiShu

    rodaa(I) = 0

    rodbb(I) = 0

    rodcc(I) = 0

    Next I

    For I = 1 To oilrod.totalnod

    For J = 0 To oilrod.Ntime

    U(I, J) = 0

    Next J

    Next I

    For I = 0 To tnod

    U(I, 0) = 0

    U(I, 1) = U(I, 0)

    Next I

    For I = 0 To oilrod.Ntime

    U(1, I) = -flex_stress(0, I) * oilrod.dertx(1) / (oilrod.Er(1) * oilrod.rodarea(1)) + U(0, I)

    ' Syangjian = U(2, 1) - U(1, 1)

    有杆抽油井工程诊断方法程序开题报告毕业论文开题报告范文相关参考属性
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    ' PpumpN(0, I) = (oilrod.Er(I) * oilrod.rodarea(I)) * Syangjian / oilrod.dertx(I)

    Next I

    U(0, oilrod.Ntime + 1) = U(0, 1)

    U(1, oilrod.Ntime + 1) = U(1, 1)

    ''计算一级杆柱的位移

    For I = 1 To oilrod.totalnod - 1

    For J = 1 To oilrod.Ntime

    Hyangjian = 1 + oilrod.rodc(1) * oilrod.derttime

    Gyangjian = oilrod.dertx(1) / oilrod.Volosity(1) * oilrod.derttime

    Fyangjian = 2 + oilrod.rodc(1) * oilrod.derttime

    Dyangjian = Hyangjian * U(I, J + 1) - Fyangjian * U(I, J) + U(I, J - 1)

    U(I + 1, J) = Gyangjian ^ 2 * Dyangjian + 2 * U(I, J) - U(I - 1, J)

    Next J

    U(I + 1, 0) = U(I + 1, oilrod.Ntime)

    U(I + 1, oilrod.Ntime + 1) = U(I + 1, 1)

    Next I

    '以下是求静位移

    For I = 0 To oilrod.JiShu

    Weight = 0: yita(0) = 0: Temps = 0: yita(1) = 0

    If I > 0 Then

    For X = I + 1 To oilrod.JiShu

    Weight = Weight + oilrod.density(X) * 9.81 * oilrod.rodarea(X) * oilrod.rodl(X) * (1 - liquiddensity / oilrod.density(X))

    Next X

    Temps = (0.5 * oilrod.density(I) * oilrod.rodl(I) * gravity * oilrod.rodarea(I) * (1 - liquiddensity / oilrod.density(I)) + Weight) * oilrod.rodl(I) / (oilrod.Er(I) * oilrod.rodarea(I))

    yita(I) = Temps + yita(I - 1) 'I级杆在浮力重力作用下的静伸长量

    End If

    Next I

    For J = 0 To oilrod.Ntime

    I = oilrod.totalnod

    Uzhenduan(I, J) = U(I, J) + yita(1)

    Next J

    '求泵载荷

    For ii = 0 To oilrod.Ntime

    ' flex_stress(oilrod.totalnod, ii) = oilrod.Er(1) * oilrod.rodarea(1) / (12 * oilrod.dertx(1)) * (-25 * U(oilrod.totalnod, ii) + 48 * U(oilrod.totalnod - 1, ii) - 36 * U(oilrod.totalnod - 2, ii) + 16 * U(oilrod.totalnod - 3, ii) - 3 * U(oilrod.totalnod - 4, ii))

    flex_stresszhenduan(oilrod.totalnod, ii) = -(1.5 * U(oilrod.totalnod, ii) - 2 * U(oilrod.totalnod - 1, ii) + 0.5 * U(oilrod.totalnod - 2, ii)) * oilrod.Er(1) * oilrod.rodarea(1) / oilrod.dertx(1)

    Next ii

    For ii = 0 To oilrod.Ntime

    If ii < oilrod.Ntime / 2 Then

    PpumpNzhenduan(oilrod.totalnod,ii) = flex_stresszhenduan(oilrod.totalnod, ii) - pressure_pc + pressure_po * oilrod.totalLength

    Else '下冲程

    PpumpNzhenduan(oilrod.totalnod,ii) = flex_stresszhenduan(oilrod.totalnod, ii) - pressure_po * oilrod.totalLength

    End If

    Next ii

    End Sub

    附录2 例子1实测悬点载荷数据

    位移,

    1 2 3 4 5 6 7

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