Cement Bond Log yog dab tsi?

Cement Bond Log: Nws ntsuas kev ncaj ncees ntawm cov cement bond ntawm tubing / casing thiab zoo bore. Lub cav feem ntau tau txais los ntawm ib qho ntawm ntau hom sonic-hom cuab yeej. Cov tshiab versions, hu ua "cement mapping", tuaj yeem muab cov ncauj lus kom ntxaws, 360-degree sawv cev ntawm kev ncaj ncees ntawm txoj haujlwm cement, qhov qub versions yuav tso tawm ib kab uas sawv cev rau kev ncaj ncees nyob ib ncig ntawm lub casing (saib daim duab hauv qab).

Lub tswv yim ntawm CBL:Transmitter xa acoustic nthwv dej mus rau casing / cement thiab tom qab ntawd cov receivers tau txais cov teeb liab acoustic uas hloov los ntawm casing rau cement thiab cuam tshuam rau receivers. Acoustic yoj ntawm receivers yog hloov mus rau amplitude (mv). Tsawg amplitude sawv cev zoo cement bond ntawm casing thiab qhov; Txawm li cas los xij, siab amplitude sawv cev tsis zoo cement daim ntawv cog lus. Lub tswvyim nyiam thaum peb khob yeeb nkab. Yog hais tias muaj ib yam dab tsi nyob ib ncig ntawm cov yeeb nkab, lub suab yuav tsum attenuated, thiab vice versa (saib daim duab hauv qab no).

Cov cuab yeej cuab tam rau CBL tam sim no feem ntau muaj cov cuab yeej hauv qab no:

Gamma Ray / CCL:Nws yog siv raws li correlation log. Gamma ray ntsuas kev tsim hluav taws xob thiab CCL cov ntaub ntawv dab tshos qhov tob hauv tubing. Correlation log yog ib qho kev siv rau ntau qhov kev ua haujlwm hauv qhov ua haujlwm perforation, teeb ntsaws, teeb thaj, thiab lwm yam.

CBL/VDL:CBL ntsuas cov cement bond kev ncaj ncees ntawm casing / tubing thiab zoo bore. Nws siv lub tswv yim ntawm acoustic yoj hloov mus los ntawm kev tshaj tawm. VDL yog qhov pom sab saum toj ntawm kev txiav tawm ntawm sab sauv ntawm acoustic nthwv dej uas sawv cev li cas cement daim ntawv cog lus los ntawm casing mus rau qhov zoo.

Caliper:Caliper ntsuas qhov zoo ntawm txoj kab uas hla.

Piv txwv ntawm CBL yog qhia hauv qab no

Downhole tej yam kev mob uas yuav ua rau yuam kev nyob rau hauv acoustic CBL txhais lus los yog kev ntseeg tau raws li nram no:

• Cement sheath thickness: Cement-sheath thickness tuaj yeem sib txawv, ua rau muaj kev hloov pauv ntawm tus nqi attenuation. Qhov tsim nyog cement thickness ntawm 3/4 nyob rau hauv. (2 cm) los yog ntau tshaj yog yuav tsum tau kom ua tiav tag nrho attenuation.
• Microannulus: Lub microannulus yog qhov sib txawv me me ntawm cov casing thiab cement. Qhov sib txawv no yuav cuam tshuam rau CBL kev nthuav qhia. Kev khiav CBL nyob rau hauv siab tuaj yeem pab tshem tawm cov microannulus.
• Centralize cuab tam: Cov cuab yeej yuav tsum tau muab nruab rau hauv thiaj li yuav tau txais qhov tseeb amplitude thiab lub sij hawm.

Vigor's Memory Cement Bond Tool yog tsim tshwj xeeb los ntsuas qhov ncaj ncees ntawm cov cement bond ntawm lub casing thiab qhov tsim. Nws ua tiav qhov no los ntawm kev ntsuas cov cement daim ntawv cog lus amplitude (CBL) siv cov neeg txais khoom nyob ze ntawm ob qho tib si 2-ft thiab 3-ft intervals. Tsis tas li ntawd, nws siv lub receiver deb ntawm qhov deb ntawm 5-ft kom tau txais qhov ntsuas qhov sib txawv ntawm qhov sib txawv (VDL).

Txhawm rau kom muaj kev ntsuam xyuas dav dav, lub cuab yeej faib cov kev tshuaj ntsuam mus rau 8 ntu, nrog rau txhua ntu npog 45 ° ntu. Qhov no ua rau muaj kev ntsuam xyuas tag nrho 360 ° ntawm cov cement daim ntawv cog lus kev ncaj ncees, muab kev nkag siab zoo rau nws qhov zoo.

Rau cov neeg nrhiav kev daws teeb meem, Vigor kuj muaj qhov xaiv tau them nyiaj sonic Cement Bond Tool. Cov cuab yeej no tuaj yeem tsim kho kom tau raws li cov kev xav tau tshwj xeeb thiab boasts tus qauv tsim qauv, ua rau luv luv tag nrho ntev ntawm cov cuab yeej hlua. Cov yam ntxwv zoo li no ua rau nws tshwj xeeb tshaj yog haum rau daim ntawv sau npe nco.

Yog xav paub ntxiv, koj tuaj yeem sau rau peb lub thawv ntawvinfo@vigorpetroleum.com ib&marketing@vigordrilling.com