Momwe Mungakhazikitsire ndi Kutulutsa RTTS Packer

Zambiri zokhudza RTTS Packers

RTTS (Kuyesa Kobwezerezedwanso-Kuchiza-Kufinya)opakiraNdi ma pack akuluakulu, otha kubwezedwa omwe amatha kupirira kupanikizika mbali zonse ziwiri. Amapangidwira kuchita ntchito zosiyanasiyana monga kuyesa mapangidwe, kupanga asidi, ndi simenti, zomwe zimathandiza kuti ntchito zosiyanasiyana zitheke nthawi imodzi. Chifukwa cha kusinthasintha kwawo, ma pack a RTTS amagwiritsidwa ntchito nthawi zambiri mu njira yathu yoyesera kupanga. Kuti timvetse bwino kapangidwe ka mkati mwa chida ichi, tiyenera kuchifufuza mwatsatanetsatane, zomwe zingatithandize kuthana ndi mavuto omwe angabuke panthawi yomanga ndi kukonza pambuyo pokonza.

1. Tanthauzo la Ma RTTS Packers

Mapaketi a RTTS ndi otsekedwa ndi makina, okhala ndi manja okhala ndi chipangizo chomangira cha hydraulic. Amagwiritsidwa ntchito makamaka pophwanya ndi kupangitsa asidi kukhalapo, komanso angagwiritsidwe ntchito pochita zinthu monga kuyesa zitsime, kulowetsa madzi, ndi kufinya simenti.

Ma RTTS packers ndi zida zapadera zomwe zimagwiritsidwa ntchito potseka zigawo za mafuta, gasi, ndi madzi mkati mwa chitsime chodzaza ndi zitsime. Amagwiritsa ntchito mphamvu zakunja kuti afupikitse kutalika kwa silinda ya rabara ndikuwonjezera kukula kwake. Mwa kutseka gawo la mafuta ndi malo ozungulira, chopaka chimapatula gawo la mafuta (kapena zigawo za gasi/madzi) pamwamba ndi pansi, kukwaniritsa cholinga choyesa zitsime za mafuta ndi gasi.

Ma RTTS packers amabwera m'makulidwe osiyanasiyana, kuphatikizapo mainchesi 4 1/2, mainchesi 5, mainchesi 5 1/2, mainchesi 7, ndi mainchesi 9 5/8. Kukula kulikonse kwa packer kuli ndi njira yosinthira ya J-slot, ma mechanical slips, thupi la packer, ndi kapangidwe ka hydraulic anching. Kapangidwe ka hydraulic anching kamaletsa packer kuti isakankhidwe mmwamba pamene kupanikizika pansi pa packer kuli kwakukulu kwambiri. Chifukwa cha ntchito ya hydraulic anching iyi, chida ichi ndi choyenera kwambiri poyesa zitsime zopanda mpweya.

Manambala a zitsanzo za ma packers akugwirizana ndi kukula kwawo: mainchesi 4 1/2, mainchesi 5, mainchesi 5 1/2, mainchesi 7, ndi mainchesi 9 5/8, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito m'mabowo osiyanasiyana.

2. Kapangidwe ka Kapangidwe:

Chopakira ichi chimakhala ndi nangula wa hydraulic, silinda ya rabara, chopondera, ndi chowongolera.

3. Zinthu Zake:

a) Nangula wa hydraulic amamangiriridwa ndi mphamvu ya chubu, zomwe zingalepheretse bwino kusuntha kwa pamwamba pa paketi.

b) Chotsetserekacho chimalekanitsidwa ndi chotchinga cha friction ndipo chimakanikizidwa mu groove yopapatiza mu mkhalidwe wosatsekedwa.

c) Chipangizo chokhazikika chooneka ngati J ndichosavuta kugwiritsa ntchito.

d) Cholumikizira cha packer chopangidwa ndi tungsten carbide alloy block ndi hydraulic anchoring device chimapangitsa kuti zikhale zosavuta kuyika packer.

4. Zoganizira za Ntchito

a) Musanagwiritse ntchito chitoliro cholowetsa madzi, ndikofunikira kuchilowetsa m'chitsimemo mokwanira ndikuchitsuka kuti muwonetsetse kuti palibe zinthu zolimba zomwe zingalepheretse chitolirocho kutsika ndikukhazikika.

b) Makina osonkhanitsira ayenera kugwira ntchito bwino komanso pang'onopang'ono. Palibe batani loyimitsa mwadzidzidzi lomwe liyenera kuyikidwa kuti makina osonkhanitsira asagwiritsidwe ntchito mwangozi kapena kutsekedwa.

c) Malo oyika ayenera kupewa kulumikizana kwa nyumba ya makina.

d) Ngati palibe kutsekeka komwe kwachitika panthawi yotsegula chitseko, chitoliro choyimirira chiyenera kuchotsedwanso mpaka chitafika pansi pa chitsime kuti chipika cha alloy chomwe chili mu chitolirocho chichotsedwe mu chitolirocho ndikunyamulidwa.

5. Ubwino wa Ma RTTS Packers

1. Ma RTTS packers ndi zida zomwe zimagwiritsidwa ntchito kwambiri poyesa zitsime zamafuta. Ndi oyenera makamaka zitsime zopanda mphamvu zambiri, zololera kulowa madzi pang'ono komanso zitsime zamafuta zolemera (zosadzipopera zokha), komanso pakakhala kuipitsidwa kwakukulu panthawi yobowola, kuyika simenti, ndi njira zina zomangira. Chifukwa cha kutayika kwakukulu, zitsime zambiri zoyesera zimafunika, ndipo ma flowback ambiri amafunikira kuti mupeze magawo enieni amadzimadzi ndi mapangidwe.

2. Zipangizo zothyola RTTS zimatha kuyesa TCP (Conventional Fracturing) + MFE (Multi-stage Fracturing), ndipo zimathanso kuyesa katatu TCP (Conventional Fracturing) + MFE (Multi-stage Fracturing) + JET (hydraulic pump drainage), kenako ndikuyambitsa TCP (Conventional Fracturing) + MFE (Multi-stage Fracturing) + JET (hydraulic pump drainage) + acidizing ndi zina zinayi zophatikizana zoyesera ukadaulo watsopano.

3.Zida zopakira za RTTS ndizosavuta kugwiritsa ntchito, zotsika mtengo, zimatha kuchepetsa ndalama zambiri, komanso zimakhala ndi zabwino pazachuma komanso pagulu.

Ma packer a RTTS (Retrievable Test-Treat-Squeeze) ndi ma packer otseguka kwathunthu, obwezerezedwanso omwe amagwiritsidwa ntchito poyesa, kuchiza, ndi kulimbitsa simenti. Nthawi zambiri, chida ichi chimayendetsedwa pansi ndi valavu yozungulira. Thupi la packer limaphatikizapo makina a J-slot, ma mechanical slips, chinthu chopakira, ndi hydraulic slip. Ma slips akuluakulu, olemera mu hydraulic locking mechanism amathandiza kupewa chidacho kuti chisapompedwe m'chitsime. Pa ma packer bodies ≤ 3 1/2 mainchesi (88.9 mm), kasupe wokoka umagwiritsa ntchito makina a J-slot, pomwe pa ma packer kukula ≥ 4 mainchesi (101.6 mm), drag block imagwiritsidwa ntchito. Ma packer bodies onse amabwera ndi sleeve ya J-slot yokha. Ngati valavu yozungulira imagwiritsidwa ntchito, ndi ya mtundu wotsekeka wotseguka/wotseka, womwe ungagwiritsidwe ntchito ngati valavu yozungulira komanso valavu yodutsa. Packer ikakhazikitsidwa, valavu imatseka yokha pamalo otsekedwa. Pa nthawi yoyesera kapena kuyika simenti, chipangizo chotseka chimaletsa valavu kuti isatsegulidwe. Malo olunjika a J omwe ali pamalo otseguka otseka amafanana ndi malo olunjika a J (ngati mukufuna) omwe ali m'thupi la wonyamula. Kuphatikiza kumeneku kumachotsa kufunika kozungulira chubu kuti mutseke valavu yozungulira kapena kubwezeretsanso chonyamula chubu pambuyo poti chubu chachotsedwa ndi simenti.

Mawonekedwe:

1. Kapangidwe kake kotsegulira bwino ka chitoliro cha packer mandrel kamalola kuti madzi ambiri azitha kupopedwa kudzera mu chidacho. Mfuti zobowola zoyendetsedwa ndi machubu ndi zida zina za waya zitha kuyendetsedwa kudzera mu packer.
2. Chopakiracho chikhoza kukhazikitsidwa ndikuyikidwanso malo ena kangapo kudzera mu njira yosavuta yosinthira machubu.
3. Ma inserts a tungsten carbide amapereka mphamvu yogwirira ntchito komanso kukana kukalamba, zomwe zimathandiza kwambiri makamaka zikagwiritsidwa ntchito mu casing yamphamvu kwambiri. Kupanikizika komwe kumayikidwa kudzera mu chubu kumayatsa ma inserts mu hydraulic locking mechanism

4. Valavu yozungulira yosankhidwa mwachisawawa imatseka pamalo otseguka kapena otsekedwa panthawi yoyesera kukanikiza ndipo imatsegulidwa mosavuta ngati pakufunika kuti ilole kuti kuyenda kwa mpweya kuyende pamwamba pa paketi.

Ntchito:

Kuti muyike chopakira, chidacho chimatsitsidwa pang'ono pansi pa malo omwe mukufuna kukhazikitsa kenako nkukwezedwa ndikuzunguliridwa kangapo. Ngati chidacho chili pansi, chingafunike kungochitembenuza theka la kuzungulira. Komabe, m'zitsime zakuya kapena zopatuka, kuzungulira kangapo pogwiritsa ntchito chida chozungulira kungafunike. Kuti musunge malo ake, mphamvu ya dzanja lamanja iyenera kusungidwa mpaka zida zoyika pa chidacho zitakhazikika ndipo zitha kuyamba kunyamula kulemera. Kupanikizika koyenera kuyenera kugwiritsidwa mbali zonse ziwiri za chopakira kuti mutulutse chopakira. Mukatulutsa payipi, valavu yozungulira imakhalabe yotsekedwa, zomwe zimapangitsa kuti kuzungulira kwa madzi kubwerere pansi pa chopakira. Pamene payipi yatsitsidwa, kuzunguliridwa kumanja, ndikukwezedwa, valavu yozungulira imatsegulidwa kuti madzi azituluka m'chitsimemo.

Momwe Mungakhazikitsire ndi Kutulutsa RTTS Packer

Musanayendetse pansi pa chitoliro cha packer, sunthani chigoba cha friction block mmwamba ndi pansi kangapo kuti muwone ngati ma mechanical slips akuyenda bwino, kenako chilowetseni m'chitsime.

Mukakonzekera kulowa m'chitsime, tsekani valavu yozungulira pamalo otseguka; malo olumikizirana a J ali pamalo otsekedwa, ndiko kuti, lug pa malo olumikizirana a J-slot, ndipo kutsetsereka kuli pamalo obwerera.

Pa nthawi yogwira ntchito, makina otsetsereka amakwera mmwamba, akukhazikitsa ma slip a makina ndikutseka valavu yozungulira. Kuti mupewe kutsekedwa mwangozi kwa valavu, tsitsani chingwe cha chubu ndikuchizunguliza kumanja, chikwezeni pamalo otseguka, kenako chizungulire kumanzere kupita pamalo otseguka otsekedwa, mosamala kuti musatsegule chingwe cha chubu.
Chidacho chikafika pamalo oyesera pomwe ntchito ziyenera kuchitikira, chichepetseni pang'ono pansi pa malo okonzera, kenako chinyamuleni pamalo okonzera.
Pansi pa dzenje, tembenuzani chingwe cha chubucho mozungulira kangapo kumanja, ndikuzungulira chidacho ndi theka lokha.

Sungani mphamvu ya dzanja lamanja pa chingwe cha chubu ndipo ikani kulemera kwake pa zotchingira za makina.Lekani kutsitsa chingwe cha chubu, chizungulireni kumanzere, ndikumasula mphamvu ya dzanja lamanja. Kawirikawiri, kutembenuka kwa theka la kuzungulira mamita 300 aliwonse ndikokwanira, ndipo sikuyenera kupitirira kuchuluka kwa kuzungulira kwa dzanja lamanja panthawi yokhazikitsa.

Mukamagwiritsa ntchito mphamvu ya dzanja lamanja, tsitsani chingwe cha chubu pa paketi, ndikuyika chidacho pamalo omwe mukufuna kuti chigwire ntchito.

Tsegulani valavu yozungulira ndikusunga madzi, tembenuzani chingwe cha chubu kumanja, kenako chinyamuleni; ikani mphamvu pa chubu ndikupitiriza kukweza mpaka kuyenda kwa madzi kuyambe. Tsopano gwirani pamalo awa, ikani madzi, kenako tulutsani chingwe cha chubu mpaka kuthamanga kwa madzi kuthe, kulola chida kuyamba kunyamula kulemera. Tembenuzani kumanzere ndikutulutsa mphamvu, kenako pitirizani kuchepetsa kulemera mpaka chopakira chikhazikitsidwenso ndi chomwe mukufuna.

Mukamaliza kuyesa ndikutulutsa chopakira, choyamba yesani kupanikizika kwa chopakira. Kenako, kwezani chingwe cha chubu popanda kuchizunguliza, motero valavu yozungulira izikhala yotsekedwa ndikukhazikitsa kuzungulira kwazungulira kuzungulira chopakira.

Tsitsani chubu, tembenuzani chingwe cha chubu, kenako chinyamuleni, potero mutsegule valavu yozungulira, ndipo chidacho chikhoza kuchotsedwa pamutu wa chitsime.