Mastering Rock Crossing ka Advanced TCI Tricone Bit.

1. Rock Crossing Directional Drilling

① Mekhoa ea ho cheka ka tsela ea ho tšela majoe e kenyelletsa tse latelang:

- Mokhoa o Bonolo oa Kaho

- DITCH WITCH Method Double-Wall Drill Pipe

- Pneumatic kapa HydraulicHammer e tlase-the-holeTšusumetso le Rotary Directional Drilling

- Mokhoa oa ho phunya oa likoloi tsa seretse

"Mokhoa oa ho cheka motlakase oa seretse" hajoale ke mokhoa o sebelisoang haholo bakeng sa ho cheka ka tsela ea mafika ka hare ho naha le machabeng. E loketse lisebelisoa tsa ho cheka tse se nang trench tsa lithane tse 25 ho ea holimo, haholo-holo lisebelisoa tse kholo tse se nang trenchless.

Enjene ea seretse, eo hape e tsejoang e le screw drill, hangata e penta le "kotopo ea trilone” kapa “Likotoana tsa ho cheka tsa PDC", hammoho le lisebelisoa tsa ho fumana tse nang le lithapo kapa tse se nang mohala. Nakong ea ho cheka ka mokhoa o tloaelehileng, molamu oa ho phunya le mochine o potoloha hammoho bakeng sa ho cheka ka tsela e otlolohileng. Bakeng sa ho cheka ka tsela e otlolohileng, ntlo e kobehileng ea motlakase e lumellana le boemo ba hora ea 12 e bontšitsoeng ke sesebelisoa sa sebaka. e potoloha karolo ea ho phunya, ho fihlela ho cheka ka tsela e lebisang.

Tsela e kobehileng ea lienjene tsa seretse bakeng sa “likotoana tsa ho cheka tse rapameng” hangata e tloha ho 1.5 ° ho isa ho 3 °, 'me khetho e itšetlehile ka ho kobeha ha tselana ea lipeipi e entsoeng.

② Litlhophiso tsa Khokahano bakeng sa ho Cheka ha Likoloi Tsa Maraka:

- E se nang mohala: Thupa ea ho cheka → Ntlo ea lisebelisoa → Motor →Li-Cones tse tharo li cheka Bit

- E nang le likhoele: Thupa e chekang → Molala oa ho phunya o sa sebetseng ka makenete → Ntlo ea liletsa → Molala oa ho cheka o senang makenete → Motlakase →Li-Cones tse tharo li cheka Bit

 

2. Ho cheka Rock Crossing Reaming

Ka mor'a ho qeta lesoba la sefofane, ho tsosolosa ho etsoa ho itšetlehile ka bophara ba pipeline.

2.1 Mefuta ea li-Rock Reamers

①Ho na le mefuta e 'meli ea mantlha ea li-rock:

- Fixed Tricone Rock Reamers: Tsena li sebelisa likaroloana tsa li-tricone cutter tse tsoang libakeng tsa ho cheka oli e le lisebelisoa tsa ho seha, tse cheselitsoeng ho shaft e bohareng ea reamer le poleiti ea motheo.

- Replaceable Roller Cutter Reamers: Lisebelisoa tsena li sebelisa li-roller cutters tse nkeloang sebaka e le lisebelisoa tsa ho seha, tse kentsoeng ka masakaneng kapa ka ho emisoa.

②Melemo le Mefokolo eaTricone Rock Bits

Melemo:

- Nako e khutšoanyane ea tlhahiso.

- E loketse li-diameter tse fapaneng (haholo-holo tse nyane ho isa ho tse mahareng), ho tloha ho 220mm ho isa ho 1600mm, 'me e ikamahanya le maemo a fapaneng a sebopeho sa jeoloji.

- Mofuta oa leino o ikhethileng le sebopeho sa ho jara se ipapisitseng le maemo a rig le sebopeho.

- Ho pshatla lejoe la hydraulic ka katleho le ho tlosa lithōle.

Mefokolo:

- Ho roala ka morao ho seha ho thata ho sebetsana le libopeho tsa lehlabathe.

-Likotoana tse bulang lesobae ka khathala ka mor'a litokiso tse 'maloa.

- Ho beha litiiso ho sehokelo sa seha ho na le monyetla oa ho hloleha, leha lisebelisoa tse thibelang ho theoha li fokotsa likotsi.

2.2 Likarolo tsa Replaceable Roller Cutter Rock Reamers bakeng sa Li-Rigs tse Nyenyane tse Mahareng

① Li-remers tsena:

- Ho sebetsana le litaba tsa morao-rao tsahula likotoana.

- E ba le litšenyehelo tse bapisoang le tse tiisitsoeng ka rabaraLikotoana tsa TCI trione, ho fokotsa litšenyehelo tsa ts'ebetso.

- Netefatsa ts'ebetso e bolokehileng le e ts'epahalang ka phetisetso e bonolo ea li-roller cutter.

2.3 Likarolo tsa Replaceable Roller Cutter Rock Reamers bakeng sa Li-Rigs tse Kholo

①Likarolo tsa bohlokoa li kenyelletsa:

- E loketse lits'oants'o tsa mosebetsi o boima libakeng tse tšelang mafika tse bophara bo boholo.

- E na le 'mele e ka sebelisoang hape leLikotoana tsa ho cheka HDD reamere etselitsoeng tshebediso e telele.

- Lirolara tse nang le meno a Ø19 a carbide le li-profiles tseo u ka li khethang (tse sa hlakang bakeng sa lefika le thata, conical bakeng sa lefika le bonolo).

 

3. Mekhahlelo ea ho cheka

3.1 Khatello ea ho Epa

Khatello ea ho cheka e itšetlehile ka lintlha tse kang ho thatafala ha majoe, bophara ba borehole, le matla a ho cheka. Khatello e feteletseng ea lisebelisoa tse kang tsaPDC hula hanyanee ka lebisa ho senyeha ha thepa.

3.2 Lebelo la Potoloho

Ka tloaelo e bolokiloe ho 40 RPM kapa ka tlase, ho netefatsa ts'ebetso e nepahetseng bakeng sa lisebelisoa tse kanglikotoana tsa ho phunya barrel.

3.3 Phallo ea Seretse

Phallo e nepahetseng ea seretse e bohlokoa bakeng sa ho pholisa le ho tlosa lithōle, haholo-holo ha ho sebelisoaAPI likotoana tse tloaelehileng tsa trioneka libopeho tsa lehlabathe.

 

4. Mokhoa oa ho tsosolosa seretse

Mekhoa e kopantsoeng ea ho hloekisa seretse e ntlafatsa bokhoni ba ho cheka. Ba boloka lisebelisoa le ho fokotsa tšusumetso ea tikoloho, ba ikamahanya le mekhoa ea morao-rao ea ho cheka e atisang ho kenyelletsalikotoana tse bulang lesobale mekhoa e se nang trenchless.

Melemo:

- E khutlisa 80-90% ea seretse.

- E boloka 40-50% ea bentonite.

- E rarolla mathata a ho lahla seretse le ho fokotsa tšusumetso ea tikoloho.