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開題報告論文 關于有桿抽油井工程診斷方法程序開題報告論文范文參考資料

關于開題報告函授畢業論文范文 有桿抽油井工程診斷方法程序開題報告類本科開題報告范文學年畢業論文。

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.

附錄1 診斷模型求解程序代碼

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)

''計算一級桿柱的位移

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

'以下是求靜位移

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級桿在浮力重力作用下的靜伸長量

End If

Next I

For J = 0 To oilrod.Ntime

I = oilrod.totalnod

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

Next J

'求泵載荷

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 '下沖程

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

End If

Next ii

End Sub

附錄2 例子1實測懸點載荷數據

位移,

1 2 3 4 5 6 7

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