SOCAR Proceedings. Well Drilling. journal home page: (1) (2) 2 T 1, T 2

Transcription

1 SOCAR Proceedings No.4 (07) SOCAR Proceedings Well Drilling journal home page: * B.A.Perminov, V.B.Perminov, Z.H.Yagubov, I.A.Dementiev A b s t r a c t In the work the analysis of the frequency characteristics of the measuring channels of a dual-input control system, and general frequency characteristics on example a dual input control system of dynamic increment of torque. The article shows that in mode of quasiresonance, the imaginary component of the frequency function becomes zero. This leads to the exclusion of the amplitude-frequency and phasefrequency distortions in the measurement channel. The calculation of the logarithmic amplitude-frequency characteristics of the entire system in mode of quasiresonance showed a complete absence of frequency distortion in a dual-input control system of dynamic increment of torque. Considered experimental logarithmic amplitudefrequency and phase-frequency characteristics in the absence of quasiresonance and if it in one of the measurement channels. It is shown that at frequencies less than resonance, the phase shift and amplitude of frequency distortion have positive values, while at frequencies above resonance negative. The article presents the results of tests of a prototype of a dual input control system parameters torque on experimental wells in the company «Eltech», Usinsk, Komi Republic. Keywords: Dual-input control system; Quasiresonance; Measuring channel; Variational structure; Frequency characteristics; Frequency distortion. 06 «OilGasScientificResearchProject» Institute. All rights reserved N M * zyagubov@ugtu.net N - - T Tp WN p () TTp TTp k T4 T3p W p () T3T4p T3 T4 p W N (p) k N - T, T W (p)- k - 7

2 B.A.Perminov et al. / SOCAR Proceedings No.4 (07) k N T p+ k T 3 p+ N(t) N (t) k N T p+ M k T 4 p+ T 3, T 4 - p WN p T T Wp Wp k T4 T3 T (3) 3T4p T3 T4p TTp TTp p - - N M - T T j WN j T T j T T j W k T T T T N TT T T T T TT j TT T T k T4 T4 j j T T j T T j k T T T T T4T3 T4 T3 k T4 T3 T4T3 j (5) T4T3 T4 T3 W N (j) - (4) W (j)- T T T T ReN T T T T - k T4 T3 T4 T3 Re T T T T T T TT ImN TT T T - T T TT Im N TT T T - j - Re Im A N N N Re Im ImN N arctg ReN Im arctg Re A A N () A () N ()- ()- - (6) (7) (8) (9) 8

3 B.A.Perminov et al. / SOCAR Proceedings No.4 (07) T T T 3 T 4 T T TT ImN 0 (0) TT T T k T4 T3 T4T3 Im 0 () T4T3 T4 T3-0 () T T 0 T (3) 3T A Re Im A N N N T ReN T T T Re Im T4 T3 Re k T 4 T 3 ImN N arctg 0 ReN Im arctg 0 Re (4) (5) - L N ()=0 lgk N + 0 lg(t -T ) - 0 lg(t -T ) (6) L ()=0 lgk + 0 lg(t 4 -T 3 ) - 0 lg(t 4 -T 3 ) (7) - - AN k T TT4 T N 3 A (8) A k T TT4 T3 LN 0lg AN 0lg A 0lgk (9) N 0lgT T0lgT T 0lgk 0lgT4 T30lg T4 T3, - () = N () - () = = 0 = 0 TT T3T T = 0. - T /T = m = T = ñ TT ñ T3T4 - T 3 = T 4 =. L N 0 lg 0 lg lg. 0 lgk 0 lg lg. 05 0lg 0lg k k N ; k 0.9k N - 0 lg k = L N ()=

4 B.A.Perminov et al. / SOCAR Proceedings No.4 (07) L() lg , T /T =m= T ; T ; T 3 ; T 4 - = > 0-0 < ,5 3,5,5 0,5 k T T k T T ,00 0, ; 0 > 0 ; 0 < 0 30

5 B.A.Perminov et al. / SOCAR Proceedings No.4 (07) ,00 0, ; 0 > 0 ; 0 < k T p k T p k 3 T 3 p k 4 T 4 p v N v dn/dt N gradm d/dt k T k T k 3 T 3 k 4 T 4 3

6 B.A.Perminov et al. / SOCAR Proceedings No.4 (07) U = F() U k T p k T p k3 T p 3 - k4 T4 p k, T, k, T, k 3, T 3, k 4, T

7 B.A.Perminov et al. / SOCAR Proceedings No.4 (07)

8 B.A.Perminov et al. / SOCAR Proceedings No.4 (07) References. -. Coordination of inertial properties of a variation pattern of torque moment gradient measurement with drilling control system //Construction of Oil and Gas Wells on-land and. off-shore. 05. No. 9. P et al. Features measurement of torque using variational structures //Oil Engineer. 06. No.. P Frequency distortions while - 4. the gradient of the torque variation patterns changes //Oil Engineer. 06. No.. P Frequency characteristics of a variational structure of Frequency characteristics of a variational structure of measurer of a torgue //The International Science-Technical measurer of a torgue //The International Science-Technical Journal HERALD of the Azerbaijan Engineering Academy. Journal HERALD of the Azerbaijan Engineering Academy Ratio of indicators in the system «drill string Ratio of indicators in the system «drill string drive» //The International Science-Technical Journal drive» //The International Science-Technical Journal HERALD of the Azerbaijan Engineering Academy HERALD of the Azerbaijan Engineering Academy Experience of shock action for bottomhole zone treatment of injection wells in the 7. fields of Western Kazakhstan //SOCAR Proceedings. 07. No.. P Propagation of the constructed of pressure waves in fluid with the account dynamic connection of system the well-formation //SOCAR Proceedings. 04. No.. P Method of drilling control, and system for its 34

9 B.A.Perminov et al. / SOCAR Proceedings No.4 (07) «Eltex» 35