Igiti cya sima ni iki?

Igiti cya sima: Ipima ubunyangamugayo bwa sima hagati ya tubing / casing na bore neza. Ubusanzwe ibiti biboneka muri kimwe mubikoresho bitandukanye bya sonic. Impapuro nshya, zitwa "sima mapping", zirashobora gutanga ibisobanuro birambuye, dogere 360 ​​zerekana ubusugire bwakazi ka sima, mugihe verisiyo ishaje ishobora kwerekana umurongo umwe ugereranya ubunyangamugayo bwuzuye hafi yikigo (reba Ishusho hepfo).

Igitekerezo cya CBL:Transmitter yohereza umuyaga wa acoustic kuri casing / sima hanyuma abayakira bakira ibimenyetso bya acoustic byimura binyuze mumasima kuri sima kandi bikagaragaza kubakira. Umuhengeri wa Acoustic kubakira wahinduwe kuri amplitude (mv). Amplitude yo hasi yerekana isano ya sima hagati yigitereko nu mwobo; icyakora, amplitude yo hejuru yerekana isano ya sima mbi. Igitekerezo gikunda iyo dukomanze umuyoboro. Niba hari ikintu gikikije umuyoboro, amajwi yerekana azagerwaho, naho ubundi (reba Ishusho hepfo).

Ibikoresho bya CBL kuri ubu bigizwe ahanini nibikoresho bikurikira:

Gamma Ray / CCL:Byakoreshejwe nkibisobanuro bifitanye isano. Imirasire ya gamma ipima imishwarara hamwe na CCL yandika uburebure bwimbitse muri tubing. Ikirangantego ni igitabo cyerekeranye numubare wimirimo ifunitse akazi nko gutobora, gushiraho plug, gushiraho patch, nibindi.

CBL / VDL:CBL ipima uburinganire bwa sima hagati ya casing / tubing na bore neza. Ikoresha igitekerezo cyo kwimura acoustic yoherejwe binyuze mubitangazamakuru. V.

Caliper:Caliper ipima diameter.

Urugero rwa CBL rwerekanwe hepfo

Imiterere ya Downhole ishobora gutera amakosa mubisobanuro bya acoustic CBL cyangwa kwizerwa nibi bikurikira:

• Uburebure bwa sima: Uburebure bwa sima-sheath burashobora gutandukana, bigatera impinduka mubipimo bya attenuation. Uburebure bwa sima bukwiye bwa 3/4 muri. (2 cm) cyangwa burenga burasabwa kugirango ugere kuri attenuation yuzuye.
• Microannulus: Microannulus ni ikinyuranyo gito cyane hagati ya cima na sima. Iki cyuho cyagira ingaruka kubitekerezo bya CBL. Gukoresha CBL mukibazo birashobora gufasha gukuraho microannulus.
• Igikoresho cyo hagati: Igikoresho kigomba kuba hagati kugirango ubone amplitude nigihe.

Igikoresho cya Memory Cement Bond Igikoresho cyashizweho kugirango dusuzume ubusugire bwa sima hagati yikibaho no gushingwa. Irabigeraho mugupima sima yububiko bwa sima (CBL) ukoresheje hafi yabakiriye ihagaze kuri metero 2 na 3-intera. Byongeye kandi, ikoresha imashini yakira kure ya metero 5 kugirango ibone ibipimo bihinduka (VDL).

Kugirango habeho isuzuma ryuzuye, igikoresho kigabanya isesengura mubice 8 byinguni, buri gice gikubiyemo igice cya 45 °. Ibi bituma isuzuma ryuzuye rya 360 ° ryerekana ubusugire bwa sima, ritanga ubushishozi bwubwiza bwaryo.

Kubashaka ibisubizo byabigenewe, Vigor iratanga kandi ibikoresho bya sonic Cement Bond Tool. Iki gikoresho kirashobora guhuzwa kugirango cyuzuze ibisabwa byihariye kandi kirata igishushanyo mbonera, bivamo uburebure bugufi muri rusange bwumugozi wigikoresho. Ibiranga ibintu bituma bikwiranye cyane na progaramu yo kwibuka.

Kubindi bisobanuro, urashobora kwandika kuri agasanduku k'ipositainfo@vigorpetroleum.com&kwamamaza@vigordrilling.com