Pneumatic mvura tsime rekuchera rig vagadziri vanokuudza maitiro ekuita neakasiyana evhu akaturikidzana anosangana nemvura yekuchera matsime emvura.

Semugadziri wemvura yepneumatic yekuchera matsime emvura, isu tinonzwisisa kuti mvura yepneumatic matsime ekuchera madhiri anofanirwa kutora nzira dzakasiyana kana uchisangana neakasiyana geological layer mukuita kuchera kuti uwane mhedzisiro yakanaka. Yakasiyana geological layers inofanirawo kusangana, senge quicksand layer uye gypsum layer. Kamwe gypsum intrusion inoitika panguva yekuchera kwepneumatic mvura tsime rekuchera rig, calcium ions inogona kubviswa nekupinda pasoda ash, kubvisa calcium uye kuderedzwa kweviscosity. Zvichakadaro, iyo viscosity-inoderedza agent ine yakasimba calcium resistance inogona kushandiswa kudzora viscosity-kuderedza uye kugadzirisa kushomeka kwesefa-kurasikirwa-kuderedza agent, anti-collapse agent uye zvimwe zvinhu.

I. Gypsum layer

Usati wachera gypsum layer, mvura yekuchera yerig inotaridzirwa kuderedza chikamu chakasimba uye viscosity, uye anti-gypsum mishonga yekurapa inobatanidzwa (semuenzaniso, soda ash, calcium remover, viscosity reducer, nezvimwewo). Uye maererano nezvinhu zvekuvaka zvematsime akavakidzana, mushonga wekurapa wekurapa gypsum layer unogadzirirwa mberi. Vandudza kukosha kwepH yemvura yekuchera yemvura yetsime yekuchera rig, uye wobva wavandudza kugona kwemvura diki yekuchera madhiri ekuchera mashini kudzivirira kusvibiswa kwegypsum.

Chechipiri, quicksand layer

Paunenge uchichera mukugadzirwa kwejecha rinokurumidza, zvakakosha kuvandudza viscosity yemvura yekuchera uye bentonite yemvura yemvura inochera rig rig drilling fluid, iyo inowanzodiwa kuva pamusoro pe10%. Kuti uvandudze maitiro ekugadzira madziro emvura tsime rekuchera rig rig drilling fluid, kukukurwa kweiyo quicksand layer inoderedzwa mushure mekudzikisa zvakakodzera kutama mupurojekiti. Usati watanga kuchera, chikamu chinofanirwa kuvharwa nedhaka gobvu rine viscosity yakakura kupfuura 80 kuti ive nechokwadi chekutanga uye kumira kwekuchera, matanda emagetsi uye casing yemvura diki yekuchera rig yekuchera michina.

III. Quartz sandstone

Kana nguva yesandstone idombo rakaoma kwazvo, mukuchera kunowanzoonekwa kunonoka kuchera kufambira mberi. Panogona kunge paine mamita maviri ejecha pakuchera mita imwe, maturusi ekuchera achisvetuka zvine chisimba, mamwe slag cuttings uye kuvigwa kutadza kwekuchera. Saka kunzwisisa kwakadzama kwenzvimbo kunodiwa.

Mvura yakachena haina lubricity yakafanana nedhaka, uye maturusi ekuchera mudombo rakaomarara anosvetuka zvekuti dombo rinotsemuka kana maturusi ekuchera anosvetuka achikwira; mvura yakachena ine nzvimbo yakakura yekurongedza, uye mvura inoyerera haigone kutakura machipisi ari kuwedzera ematombo kubva mugomba. Machipisi ematombo akaita sejecha akaramba achiyangarara achinyura mugomba. Kana poda yehupfu ikashandiswa, mita imwe kana maviri ejecha inogona kucherwa. Kusangwarira zvishoma kunogona kuviga chibooreso, uye jecha rakawanda rinokonzera dambudziko rakawanda mukubvisa gomba.

Iyo jecha panguva yekushandiswa inoumbwa nekuisa uye idombo rakaoma kwazvo. Diki yemvura yepneumatic tsime rekuchera mukati kana kuchera gomba harina kudzika (303354200 m), saka kushandiswa kwakawanda kwedhaimani dhiri kudhiraivha kwakajeka kwemvura kuchera, otomatiki slurry, kazhinji kunoratidzwa mukunonoka kuchera tsoka, mita imwe yekuchera tsoka inogona kuratidza maviri metres. yejecha, mudziyo wekuchera kusvetuka zvakakomba, slag, chipped rock zvimwe, kutadza kuchera kuvigwa zvichingodaro.

Solution: Kana kuchera nedhaka kusiri kwehupfumi, unogona kuderedza kuitika kwejecha nekucheka huwandu hwemvura diki yekuchera matsime emvura achisvetuka, unogona kuwedzera nitro acid uye alkali additives mumvura kuita basa revibration damping lubrication, saka. kuti iwe unogona kuderedza kuwanda kwezvigadziro zvekusvetuka uye jecha, uye wozoomerera pakucheneswa kwemakomba ekuchera emvura yepneumatic tsime rekuchera rigs, uye pakupedzisira kugadzirisa dambudziko!