1. Kev xaiv cov av nkos
(1) Av nplaum: Siv cov bentonite zoo, thiab nws cov kev xav tau yog raws li hauv qab no: 1. Particle loj: saum 200 mesh. 2. Moisture cov ntsiab lus: tsis ntau tshaj 10% 3. Pulping tus nqi: tsis tsawg tshaj li 10m3/ton. 4. Kev poob dej: tsis pub ntau tshaj 20ml / min.
(2) Kev xaiv dej: Cov dej yuav tsum tau kuaj xyuas cov dej zoo. Feem ntau, cov dej mos yuav tsum tsis pub tshaj 15 degrees. Yog tias nws dhau, nws yuav tsum tau softened.
(3) Hydrolyzed polyacrylamide: Kev xaiv ntawm hydrolyzed polyacrylamide yuav tsum yog cov hmoov qhuav, anionic, nrog rau qhov hnyav molecular tsis pub tsawg tshaj 5 lab thiab qib ntawm hydrolysis ntawm 30%.
(4) Hydrolyzed polyacrylonitrile: Kev xaiv ntawm hydrolyzed polyacrylonitrile yuav tsum yog hmoov qhuav, anionic, molecular hnyav 100,000-200,000, thiab qib ntawm hydrolysis 55-65%.
(5) Soda tshauv (Na2CO3): Decalcify bentonite los txhim kho nws cov kev ua tau zoo (6) Potassium humate: Dub hmoov 20-100 mesh yog qhov zoo tshaj plaws
2. Kev npaj thiab siv
(1) Cov khoom xyaw tseem ceeb hauv txhua qhov av nkos: 1. Bentonite: 5% -8%, 50-80kg. 2. Soda tshauv (NaCO3): 3% mus rau 5% ntawm cov av ntim, 1.5 mus rau 4kg ntawm soda tshauv. 3. Hydrolyzed polyacrylamide: 0.015% rau 0.03%, 0.15 txog 0.3kg. 4. Hydrolyzed polyacrylonitrile qhuav hmoov: 0.2% mus rau 0.5%, 2 mus rau 5kg ntawm hydrolyzed polyacrylonitrile qhuav hmoov.
Tsis tas li ntawd, raws li cov txheej txheem tsim, ntxiv 0.5 mus rau 3 kg ntawm anti-slumping tus neeg saib xyuas, ntsaws tus neeg saib xyuas thiab cov kua dej txo tus neeg sawv cev rau ib lub cubic meter ntawm av nkos. Yog hais tias lub Quaternary tsim yog ib qho yooj yim mus vau thiab nthuav, ntxiv txog 1% anti-collapse tus neeg saib xyuas thiab txog 1% poov tshuaj humate.
(2) Cov txheej txheem npaj: Raws li ib txwm muaj, kwv yees li 50m3 ntawm av nkos yog xav tau los tho qhov 1000m borehole. Siv qhov kev npaj ntawm 20m3 av nkos ua piv txwv, cov txheej txheem kev npaj ntawm "ob chav polymer av" yog raws li nram no:
1. Muab 30-80kg ntawm soda tshauv (NaCO3) rau hauv 4m3 dej thiab sib tov zoo, ces ntxiv 1000-1600kg ntawm bentonite, sib tov zoo, thiab tsau rau ntau tshaj ob hnub ua ntej siv. 2. Ua ntej siv, ntxiv cov av nkos rau hauv dej huv kom dilute nws los ua 20m3 hauv paus slurry. 3. Dissolve 3-6kg ntawm hydrolyzed polyacrylamide qhuav hmoov nrog dej thiab ntxiv rau lub hauv paus slurry; dilute thiab yaj 40-100kg ntawm hydrolyzed polyacrylonitrile qhuav hmoov nrog dej thiab ntxiv rau lub hauv paus slurry. 4. Sib tov zoo tom qab ntxiv tag nrho cov khoom xyaw
(3) Kev ntsuas kev ua tau zoo Cov khoom sib txawv ntawm cov av nkos yuav tsum tau sim thiab tshuaj xyuas ua ntej siv, thiab txhua qhov ntsuas yuav tsum ua raws li cov qauv hauv qab no: cov ntsiab lus theem: tsawg dua 4% qhov tshwj xeeb gravity (r): tsawg dua 1.06 funnel viscosity (T) : 17 mus rau 21 vib nas this Dej ntim (B): tsawg dua 15ml / 30 feeb Mud ncuav mog qab zib (K):
Cov khoom xyaw ntawm drilling av nkos ib kilometer
1. av nplaum:
Xaiv cov bentonite zoo, thiab nws cov kev xav tau yog raws li hauv qab no: 1. Particle loj: saum 200 mesh 2. Moisture cov ntsiab lus: tsis ntau tshaj 10% 3. Pulping tus nqi: tsis tsawg tshaj li 10 m3/ton 4. dej poob: tsis muaj ntau tshaj 20ml / min 5. Ntim: 3000 ~ 4000kg
2. Soda tshauv (NaCO3): 150kg
3. Kev xaiv dej: Cov dej yuav tsum tau kuaj xyuas cov dej zoo. Feem ntau, cov dej mos yuav tsum tsis pub tshaj 15 degrees. Yog tias nws dhau, nws yuav tsum tau softened.
4. Hydrolyzed polyacrylamide: 1. Kev xaiv ntawm hydrolyzed polyacrylamide yuav tsum yog cov hmoov qhuav, anionic, molecular hnyav tsis tshaj 5 lab, thiab hydrolysis degree 30%. 2. Ntim: 25kg.
5. Hydrolyzed polyacrylonitrile: 1. Kev xaiv ntawm hydrolyzed polyacrylonitrile yuav tsum yog hmoov qhuav, anionic, molecular hnyav 100,000-200,000, thiab degree ntawm hydrolysis 55-65%. 2. Ntim: 300kg.
6. Lwm yam khoom seem: 1. ST-1 anti-slump agent: 25kg. 2. 801 plugging tus neeg saib xyuas: 50kg. 3. Potassium humate (KHm): 50kg. 4. NaOH (caustic soda): 10kg. 5. Inert cov ntaub ntawv rau ntsaws (pom ua npuas ncauj, cottonseed husk, thiab lwm yam.): 250kg.
Composite uas tsis tshua muaj khoom theem tiv thaiv plam av nkos
1. Nta
1. Zoo fluidity thiab muaj zog muaj peev xwm nqa pob zeb hmoov. 2. Kev kho av nkos yooj yim, kev saib xyuas yooj yim, kev ua haujlwm ruaj khov thiab ua haujlwm ntev. 3. Kev siv dav, nws tuaj yeem siv tsis tau tsuas yog hauv xoob, tawg thiab tawg strata, tab sis kuj nyob rau hauv av nkos tawg pob zeb stratum thiab dej-rhiab pob zeb stratum. Nws tuaj yeem ua tau raws li kev tiv thaiv phab ntsa ntawm cov pob zeb sib txawv.
4. Nws yog ib qho yooj yim los npaj, tsis muaj cua sov los yog pre-soaking, tsuas yog sib tov ob qho tib si theem qis slurries thiab do zoo. 5. Hom kev sib xyaw no tiv thaiv cov av nkos tsis tsuas yog muaj kev tiv thaiv kev poob qis, tab sis kuj muaj kev ua haujlwm ntawm kev tiv thaiv slump.
2. Kev npaj ntawm composite low-solid anti-slump mud A kua: polyacrylamide (PAM) ─potassium chloride (KCl) low-solid anti-slump av nkos 1. Bentonite 20%. 2. Soda tshauv (Na2CO3) 0.5%. 3. Sodium carboxypotassium cellulose (Na-CMC) 0.4%. 4. Polyacrylamide (PAM molecular hnyav yog 12 lab units) 0.1%. 5. Potassium chloride (KCl) 1%. Cov kuab tshuaj B: Potassium humate (KHm) uas tsis muaj cov khoom theem tiv thaiv slump av
1. Bentonite 3%. 2. Soda tshauv (Na2CO3) 0.5%. 3. Potassium humate (KHm) 2.0% mus rau 3.0%. 4. Polyacrylamide (PAM molecular hnyav yog 12 lab units) 0.1%. Thaum siv, sib tov cov kua A thiab kua B ntawm qhov sib piv ntawm 1: 1 thiab do kom huv si.
3. Mechanism Analysis ntawm Composite Low Solids Anti-slump Mud Wall Protection
Liquid A yog polyacrylamide (PAM)-potassium chloride (KCl) uas tsis muaj cov khoom siv los tiv thaiv cov av nkos, uas yog cov av nkos zoo nrog kev ua haujlwm zoo. Kev sib xyaw ua ke ntawm PAM thiab KCl tuaj yeem cuam tshuam cov dej nthuav dav ntawm cov dej-rhiab heev, thiab muaj kev tiv thaiv zoo heev ntawm kev khawb rau hauv dej-rhiab formations. Nws zoo inhibits hydration expansion ntawm hom pob zeb tsim nyob rau hauv thawj lub sij hawm thaum cov dej-sensitive tsim raug, yog li tiv thaiv lub cev qhuav dej ntawm lub qhov phab ntsa.
Cov kuab tshuaj B yog cov poov tshuaj humate (KHm) uas tsis muaj cov khoom siv los tiv thaiv cov av nkos, uas yog cov av nkos zoo nrog kev ua haujlwm zoo los tiv thaiv slump. KHm yog tus neeg saib xyuas cov av nkos zoo, uas muaj cov haujlwm ntawm kev txo cov dej poob, diluting thiab dispersing, tiv thaiv lub qhov phab ntsa ntub dej, thiab txo thiab tiv thaiv cov av nkos hauv cov cuab yeej drilling.
Ua ntej ntawm tag nrho cov, thaum lub sij hawm cov txheej txheem ntawm cov poov tshuaj humate (KHm) tsawg-kawg theem los tiv thaiv-collapse av nkos nyob rau hauv lub qhov, los ntawm high-speed tig ntawm lub laum yeeb nkab nyob rau hauv lub qhov, cov poov tshuaj humate thiab av nplaum nyob rau hauv cov av nkos yuav ntws. mus rau hauv lub pob zeb xoob thiab tawg nyob rau hauv qhov kev txiav txim ntawm lub zog centrifugal. Lub pob zeb xoob thiab tawg strata ua si lub luag haujlwm ntawm cementation thiab ntxiv dag zog, thiab tiv thaiv kom tsis txhob ya raws thiab nkag mus rau hauv lub qhov phab ntsa hauv thawj qhov chaw. Qhov thib ob, qhov twg muaj qhov khoob thiab kev nyuaj siab nyob rau hauv lub qhov phab ntsa, cov av nplaum thiab KHm nyob rau hauv cov av nkos yuav tau ntim rau hauv qhov khoob thiab kev nyuaj siab nyob rau hauv qhov kev txiav txim ntawm lub zog centrifugal, thiab tom qab ntawd lub qhov phab ntsa yuav ntxiv dag zog thiab kho. Thaum kawg, cov poov tshuaj humate (KHm) cov theem qis los tiv thaiv cov av nkos circulates hauv lub qhov rau ib lub sijhawm, thiab tuaj yeem maj mam tsim cov tawv nqaij nyias, tawv, ntom, thiab du av nkos ntawm phab ntsa ntawm lub qhov, uas tiv thaiv nws ntxiv. tiv thaiv cov seepage thiab yaig dej ntawm phab ntsa pore, thiab tib lub sij hawm plays lub luag hauj lwm ntawm ntxiv dag zog rau lub pore phab ntsa. Cov av nkos du ntawm daim tawv nqaij muaj cov txiaj ntsig ntawm kev txo qis ntawm kev xyaum, tiv thaiv kev puas tsuaj rau lub qhov phab ntsa uas tshwm sim los ntawm kev co ntawm cov cuab yeej drilling vim muaj kev tiv thaiv ntau dhau.
Thaum cov kua A thiab kua B sib xyaw ua ke hauv tib qhov av nkos ntawm qhov sib piv ntawm 1: 1, kua A tuaj yeem cuam tshuam cov dej nthuav dav ntawm "cov av nkos tawg" pob zeb tsim thawj zaug, thiab kua B tuaj yeem siv rau hauv thawj zaug Nws ua lub luag haujlwm hauv kev lim ntshav thiab cementation ntawm "loo thiab tawg" pob zeb formations. Raws li cov kua sib xyaw ua ke nyob hauv lub qhov ntev ntev, cov kua B yuav maj mam tsim cov av nkos hauv tag nrho lub qhov seem, yog li maj mam ua lub luag haujlwm tseem ceeb ntawm kev tiv thaiv phab ntsa thiab tiv thaiv kev tawg.
Potassium humate + CMC av nkos
1. Mud formula (1), bentonite 5% mus rau 7.5%. (2), Soda tshauv (Na2CO3) 3% mus rau 5% ntawm cov av. (3) Potassium humate 0.15% mus rau 0.25%. (4), CMC 0.3% rau 0.6%.
2. Kev ua haujlwm av nkos (1), funnel viscosity 22-24. (2), dej poob yog 8-12. (3), lub ntiajteb txawj nqus 1.15 ~ 1.2. (4), pH tus nqi 9-10.
Broad Spectrum Protective Mud
1. Mud formula (1), 5% mus rau 10% bentonite. (2), Soda tshauv (Na2CO3) 4% mus rau 6% ntawm cov av. (3) 0.3% mus rau 0.6% broad-spectrum tiv thaiv tus neeg sawv cev.
2. Kev ua haujlwm av nkos (1), funnel viscosity 22-26. (2) Kev poob dej yog 10-15. (3), lub ntiajteb txawj nqus 1.15 ~ 1.25. (4), pH tus nqi 9-10.
plugging tus neeg sawv cev av nkos
1. Mud formula (1), bentonite 5% mus rau 7.5%. (2), Soda tshauv (Na2CO3) 3% mus rau 5% ntawm cov av. (3), plugging tus neeg sawv cev 0.3% rau 0.7%.
2. Kev ua haujlwm av nkos (1), funnel viscosity 20-22. (2) Kev poob dej yog 10-15. (3) Lub ntiajteb txawj nqus yog 1.15-1.20. 4. Tus nqi pH yog 9-10.
Post lub sij hawm: Jan-16-2023