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开题报告澳门永利网站 关于有杆抽油井工程诊断方法程序开题报告澳门永利网站澳门永利网站参考资料

关于开题报告函授澳门永利网站澳门永利网站澳门永利网站 有杆抽油井工程诊断方法程序开题报告类本科开题报告澳门永利网站学年澳门永利网站澳门永利网站。

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)

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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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