6. Standard Procedure:
& nbsp;
The purpose of different standards is to provide operators a specific guideline to perform different inspection by reducing the possible Inspection errors. To accomplish this, users of this standard establish specific rules to govern the inspection process. Taken together, these rules become the & quot;Inspection Program & quot;. The inspection program defines:
& nbsp;
(a) Cov txheej txheem tshuaj xyuas twg yuav raug siv rau txhua qhov laum cov laum siv.
(b) Yuav ua li cas txhua txoj kev tshuaj xyuas yuav tsum tau ua nyob rau hauv kauj ruam - los ntawm - cov kauj ruam kev ua.
(c) Yuav ua li cas txais cov qauv yuav siv tau thaum soj ntsuam - uas yog, tus neeg siv & # 39; s txhais ntawm & quot; zoo & quot; thiab & quot; tsis zoo & quot ;.
& nbsp;
Kev Sib Txuas Lus:
& nbsp;
Ntxiv rau qhov yuam kev tshwm sim los ntawm qhov tsis txaus ntseeg ntawm cov cuab yeej tshuaj xyuas thiab cov txheej txheem, muaj ntau qhov kev tshuaj xyuas tsis raug vim tias qhov kuaj xyuas tsis paub lossis tsis sau tawm nws cov tseev kom muaj. Ob nqe lus uas nquag siv yuav tsum raug zam vim tias lawv lub ntsiab lus tsis muaj qhov tseeb thiab tsis meej:
& nbsp;
(a) & quot;API Inspection & quot; is an often used but ambiguous phrase. The attributes of acceptable used drill stem components can be found in API RP7G for many types of equipment. However, that standard is essentially silent on how those attributes are to be evaluated. Therefore, the phrase & quot;API Inspection & quot; has no real universally understood meaning.
(b) & quot; DS -1 Tshuaj Tshawb & quot; yog zoo li no lub ntsiab lus tsis muaj nuj nqis thaum siv nyob ib leeg. Daim DS -1 tshuaj xyuas tuaj yeem sib txawv los ntawm tsawg heev (Cat 1) txog qhov tau zoo (Cat 5). Yog li no, rau lub sij hawm & quot; DS -1 Kev Tshawb Xyuas & quot; kom muaj lub ntsiab lus meej, ib qeb yuav tsum tau hais tseg. Lub sij hawm & quot; DS -1, Miv 3 0010010 quot; (piv txwv) tau teeb tsa qhov kev tshuaj ntsuam xyuas thiab ua cov txheej txheem kev tswj xyuas zoo uas tus neeg tshuaj xyuas yuav tsum siv qee yam khoom siv.
& nbsp;
7. What are the Solutions?
& nbsp;
Kuv) Tsis tsom xam qhov:
& nbsp;
Group 1 Failure: if stress in a component exceeds some fairly high stress threshold. The threshold stress is also used for setting minimum acceptable dimensions for a component when the maximum load is fixed.
& nbsp;
Group 2 Failure: can occur at low stress levels and heavily influenced by the drilling mud chemical environment and accumulated fatigue.
The response to a drill stem failure also depends on whether the failure mechanism is Group 1 or Group 2.
& nbsp;
In the planning phase of a well, the approach to preventing failures depends on whether the Failure mechanism is Group 1 or Group 2.
& nbsp;
Piv Txwv 1: & quot; Txhua qhov dej hauv Lub Nroog A yuav raug tshuaj xyuas rau DS -1 Hom 3 0010010 quot ;.
Example 2: & quot;Service category shall be determined independently based on depth, mud weight, well location, and H2S concentration according to the following table. The highest service category shall be used to set the inspection program & quot;.
Offshore, cov dej nyob sab hauv lossis chaw nyob deb, siv Cov Kev Pab Cuam Yam tsawg kawg 4. Rau kev tsim H2S ntau dua ntawm 0 .5 psia, siv Cov Kev Pabcuam 5.
& nbsp;
ii) Tubular Cov Kev Tswj Xyuas Tubular
& nbsp;
Kev Evolution ntawm Tubular Ua Haujlwm Zoo Tubular tsuas ua tau los ntawm kev sib koom tes zoo thiab sib txuas lus nruab nrab ntawm
a) Cov Tuam Txhab Ua Haujlwm Roj
b) Cov Kev Cog Lus Drilling
c) Kev Tshuaj Xyuas Lub Tuam Txhab.
Tag nrho peb tog no yuav tsum tau ua haujlwm ua ke los ntawm cov qauv tsim ntawm cov ntawv thov tau tsim Tus Qauv Zoo tsim nyog ua tau
a) Khaws qhov siab tshaj plaws ntawm txhua qhov taw tes hauv cov laum kav qis dua li tawm los ua kom muaj zog - rated los ntawm tus qauv tsim (kev nyab xeeb);
b) Xaiv cov khoom siv thiab kev teeb tsa cov rooj sibtham kom ua kom qaug zog sai npaum li kev lag luam.
